Solid product dissolver and method of use thereof

• US 20050244315A1
• Filed: 04/30/2004
• Published: 11/03/2005
• Est. Priority Date: 04/30/2004
• Status: Abandoned Application

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Inventors: Greaves, Michael D., Stankiewicz, William J., Bedford, Bruce D., Copeland, James L., Munch, Stefan
• Application Number:
  US10/836,386
• Publication Number:
  US 20050244315A1
• Time in Patent Office: Days
• US Class Current: 422/264
• CPC Class Codes: B01F 21/221 comprising constructions for blocking or redispersing undissolved solids
• CPC Class Codes: B01F 35/20 Measuring; Control or regulation
• CPC Class Codes: B01F 35/2112 Level of material in a container or the position or shape of the upper surface of the material
• CPC Class Codes: C02F 1/688 Devices in which the water progressively dissolves a solid compound
• CPC Class Codes: C02F 2201/008 Mobile apparatus and plants, e.g. mounted on a vehicle
• CPC Class Codes: C02F 2209/42 Liquid level
• CPC Class Codes: C02F 2303/08 Corrosion inhibition
• CPC Class Codes: C02F 2305/04 Surfactants, used as part of a formulation or alone

Abstract

The present invention provides a device for producing a water treatment solution from a solid chemical block for distribution into a water system selected from the group comprising an institutional water system and an industrial water system. The device includes a housing to contain the solid chemical block. A fluid, preferably water at ambient temperature, is introduced into the housing to dissolve the block and form a liquid solution that may then be dispensed into either an institutional water system or an industrial water system. A method of dispensing the liquid solution with the device is also provided.

Claims

1. A vessel for dispensing a chemical solution from a solid chemical block, comprising:

an inner surface defining a chamber;

a plurality of spaced apart guide members disposed along the inner surface for positioning at least one chemical block to form a gap between the inner surface and a circumference of the block;

a porous support member for supporting the at least one chemical block in the chamber; and

a spray member located below the support member for directing a spray in an upward manner along at least a portion of a vertical length of the chamber, the spray contacting a surface of the block to form a liquid solution.

2. The vessel of claim 1 wherein the vessel is moveable.

3. The vessel of claim 1 further comprising a lower section for receiving the liquid solution.

4. The vessel of claim 1 wherein the vessel is in fluid communication with a water system selected from the group comprising an institutional water system and an industrial water system.

5. The vessel of claim 1 wherein a portion of the fluid spray impinges the inner surface before contacting the block surface.

6. The vessel of claim 1 wherein a portion of the fluid spray impinges the plurality of guide members before contacting the block surface.

7. The vessel of claim 1 wherein the fluid spray contacts a bottom surface and a side surface of the block.

8. The vessel of claim 1 further comprising a plurality of chemical blocks in a substantially vertical arrangement disposed between the plurality of guide members.

9. The vessel of claim 8 wherein a portion of the fluid spray contacts a surface of a second block.

10. The vessel of claim 9 wherein a portion of the fluid spray contacts the inner surface of the chamber before contacting the surface of the second block.

11. The vessel of claim 1 wherein the porous support member is a screen.

12. The vessel of claim 1 wherein the temperature of the spray is ambient temperature.

13. The vessel of claim 1 further comprising:

a cover pivotally attached to an upper end of the housing, the cover moveable between an open position and a closed position; and

a detection device for detecting the position of the cover, the detection device in operative communication with a fluid source in fluid communication with the spray member, the detection device configured to prevent delivery of the fluid to the spray member when the cover is in the open position.

14. The vessel of claim 1 further comprising:

a sensing device for sensing the amount of liquid solution present in the container, the sensing device in operative communication with the a fluid source in fluid communication with the spray member, the sensing device configured to open the fluid source when the amount of the liquid solution is below a threshold level in the container.

15. A vessel for dispensing a chemical solution from a solid chemical block, comprising:

an inner surface defining a chamber;

an annular sleeve having a tapered wall;

at least one chemical block having a peripheral edge in supportive contact with an inner surface of the tapered wall to expose a surface of the block;

a spray member located below the sleeve for directing a spray in an upward manner along a vertical length of the sleeve, the spray contacting a surface of the block to form a liquid solution, the tapered wall extending from the inner surface toward the spray member.

16. The vessel of claim 15 wherein a bottom surface of the block is exposed to the spray member.

17. The vessel of claim 15 wherein the area of the exposed bottom surface remains substantially uniform as the spray contacts the bottom surface.

18. The vessel of claim 15 wherein the spray member directs a substantially uniform fluid spray onto the block.

19. The vessel of claim 15 further comprising a container for receiving the liquid solution.

20. The vessel of claim 15 wherein the vessel is moveable.

21. The vessel of claim 15 wherein the temperature of the spray is ambient temperature.

22. The vessel of claim 15 further comprising a plurality of chemical blocks stacked upon each other, a lowermost block having a peripheral edge in supportive contact with the inner surface of the tapered wall.

23. The vessel of claim 15 wherein the vessel is in fluid communication with a water system selected from the group comprising an institutional water system and an industrial water system.

24. The vessel of claim 15 further comprising:

a cover pivotally attached to an upper end of the housing, the cover moveable between an open position and a closed position; and

a detection device for detecting the position of the cover, the detection device in operative communication with a fluid source in fluid communication with the spray member, the detection device configured to prevent delivery of the fluid to the spray member when the cover is in the open position.

25. The system of claim 15 further comprising:

a sensing device for sensing the amount of liquid solution present in the container, the sensing device in operative communication with the a fluid source in fluid communication with the spray member, the sensing device configured to open the fluid source when the amount of the liquid solution is below a threshold level in the container.

26. A device for producing a chemical solution from a solid chemical block comprising:

a housing having an inner chamber;

a porous support member within the housing for supporting the chemical block within the inner chamber;

a fluid inlet for introducing a fluid into the chamber, the fluid dissolving at least a portion of the chemical block to form a liquid solution;

a container for receiving the liquid solution; and

a sensing device for sensing the amount of liquid solution present in the container, the sensing device in operative communication with the fluid inlet, the sensing device configuring the fluid inlet to introduce the fluid when the amount of liquid solution in the container is below a threshold level.

27. The device of claim 26 wherein the fluid inlet introduces a predetermined volume of fluid.

28. The device of claim 26 wherein the fluid inlet introduces a fluid for a predetermined amount of time.

29. The device of claim 26 wherein the porous support member is selected from the group consisting of a screen and a screen basket.

30. The device of claim 26 further comprising a plurality of chemical blocks.

31. The device of claim 26 wherein the device is moveable.

32. The device of claim 26 wherein the temperature of the fluid is ambient temperature.

33. The device of claim 26 wherein the container is in fluid communication with a water system selected from the group comprising an institutional water system and an industrial water system.

34. A device for producing a chemical solution comprising:

a housing defining a chamber;

a plurality of solid chemical blocks disposed within the chamber;

a fluid inlet for introducing a fluid into the chamber, at least two or more blocks dissolving substantially contemporaneous from contact with the fluid to form a liquid solution; and

an outlet member in fluid communication with the chamber for discharging the liquid solution from the chamber.

35. The device of claim 34 wherein the fluid inlet is on an inlet side of the housing and the outlet member is on an opposing side of the housing.

36. The device of claim 35 wherein the fluid inlet is on an upper end of the housing.

37. The device of claim 34 wherein the plurality of blocks are disposed in a substantially vertically stacked arrangement.

38. The device of claim 34 wherein the fluid is water at ambient temperature.

39. The system of claim 34 wherein the outlet member is in fluid communication with a water system selected from the group comprising an institutional water system and an industrial water system.

40. The device of claim 34 wherein the device is moveable.

41. A device for producing a chemical solution from a solid chemical block comprising:

a housing having a chamber;

a solid chemical block disposed within the chamber;

a fluid inlet for introducing a fluid into a first end of the chamber, the fluid contacting the chemical block to dissolve at least a portion of the block to form a liquid solution; and

a fluid outlet at an opposite end of the first end for forming a fluid counterflow through the chamber.

42. The device of claim 41 wherein the first end is a lower end of the chamber and the opposite end is an upper end of the chamber.

43. The device of claim 41 further comprising a plurality of chemical blocks in a substantially vertical arrangement disposed in the chamber.

44. The device of claim 41 wherein at least one block is not contacted by the fluid.

45. The device of claim 41 further comprising a container for receiving the liquid solution from the fluid outlet and a sensing device for sensing the amount of liquid solution present in the container, the sensing device in operative communication with the fluid inlet, the sensing device configuring the fluid inlet to introduce the fluid when the amount of liquid solution in the container is below a threshold level.

46. The device of claim 41 wherein the temperature of the fluid is ambient temperature.

47. The device of claim 41 wherein the device is moveable.

48. The device system of claim 41 wherein the outlet member is in fluid communication with an industrial water system.

49. A facility comprising:

a vessel having an inner surface defining an inner chamber, a plurality of spaced apart guide members disposed along an inner surface of the chamber for positioning at least one chemical block to form a gap between the inner surface and a circumference of the block, a porous support member for supporting the at least one chemical block in the chamber, and a spray member located below the support member for directing a spray in an upward manner along a vertical length of the inner chamber, the spray contacting a surface of the block to form a liquid solution; and

a water system in fluid communication with the vessel,

wherein the facility is selected from the group comprising an institutional facility and an industrial facility and the water system is selected from the group comprising an institutional facility and an industrial facility.

50. The facility of claim 49 wherein the facility is an industrial facility and the water system is an industrial water system selected from the group consisting of cooling water systems, open recirculating cooling water systems, closed cooling water systems, once-through cooling water systems, boilers, boiler water systems, petroleum well water systems, downhole formations, geothermal wells, oil field water systems, mineral washing systems, flotation water systems, benefaction water systems, paper mill digesters, washers, bleach plants, white water systems, black liquor evaporators, gas scrubbers, air washers, metallurgical continuous casting processes, air conditioning systems, refrigeration systems, industrial process water systems, petroleum process water systems, indirect contact cooling systems, indirect contact heating water systems, pasteurization water systems, water reclamation and purification systems, membrane filtration water systems, food processing systems and waste treatment systems.

51. The facility of claim 49 wherein the facility is an institutional facility selected from the group consisting of hotels, hospitals, health care facilities, nursing homes, educational campuses, decorative fountains, bathing ponds, whirpool baths, swimming pools, water parks and theme park amusement facilities requiring large amounts of non-potable water and other recreational facilities and the water system is an institutional water system.

52. A method of dispensing a solid water treatment product into an water system, comprising:

providing a housing having at least two solid chemical blocks containing the water treatment product disposed therein;

introducing a fluid into the housing;

contacting the at least two chemical blocks with the fluid to dissolve contemporaneously at least a portion of each of the at least two chemical blocks to form a liquid solution containing the water treatment product; and

dispensing the liquid solution into the industrial water system, wherein the water system is selected from the group comprising an institutional water system and an industrial water system.

53. The method of claim 52 wherein the housing has an inner surface defining a chamber, the method further comprising:

providing a plurality of spaced apart guide members along the inner surface;

positioning the chemical blocks between the guide members to form a gap between the inner surface a circumference of the block;

supporting with a porous support member the solid chemical block within the chamber; and

directing a spray of the fluid from under the block into the chamber.

54. The method of claim 52 further comprising impinging a portion of the spray upon the inner surface before contacting the block.

55. The method of claim 52 further comprising impinging a portion of the fluid spray upon at least one of the plurality of guide members before contacting the block.

56. The method of claim 52 further comprising contacting with the spray a side surface and a bottom surface of the block.

57. The method of claim 52 wherein the housing has an inner surface defining an inner chamber, the method further comprising:

providing an annular sleeve having a tapered wall;

supporting a peripheral edge of at least one of the blocks with an inner surface of the tapered wall to expose a surface of the block; and

directing a spray of the fluid from under the block into the sleeve.

58. The method of claim 52 further comprising exposing to the spray a substantially uniform area of a bottom surface of the block as the block dissolves.

59. A composition for treating water comprising:

(a) a matrix component, wherein the matrix component is a polyethylene glycol having an weight average molecular weight from about 2500 to about 20,000, and wherein the matrix component is present from about 34% to about 56% by weight of the composition,

(b) a compacting component;

wherein the compacting component is urea, and wherein the compacting component is present from about 3% to about 7.5% by weight of the composition;

(c) a corrosion inhibiting agent selected from the group consisting of 1-hydroxyethan-1,1-diphosphonic acid and phosphonosuccinate oligomer, wherein the corrosion inhibiting agent is present from about 14% to about 35% by weight of the composition;

(d) a yellow metal corrosion inhibitor selected from the group consisting of benzotriazole, tolyltriazole and halogenated tolyltriazole, and wherein said yellow metal corrosion inhibitor is present from about 2% to about 15% by weight of the composition; and

(e) a tracing agent selected from the group comprising pyrene tetrasulphonic acid sodium salt, 1,3,6,8-pyrenetetrasulfonic acid sodium salt, fluorescein, molybdate, vanadate and naphthalene disulfonic acid, sodium salt, wherein said tracing agent is present from about 0.15% to about 1.1% by weight of the composition.

60. The composition of claim 59 further comprising a dispersant, wherein the dispersant is selected from the group consisting of amine substituted sulfomethylated acrylamide acrylate terpolymer, polyacrylate, sulfonated styrene maleic anhydride, and sulfomethylated acrylamide acrylate terpolymers, including a tagged sulfomethylated acrylamide/acrylic acid, partial sodium salt, terpolymer, and the dispersant is present from about 9% to about 42% by weight of the composition.

61. The composition of claim 59 further comprising a scale inhibiting agent, wherein the scale inhibiting agent is selected from the group consisting of 2-phosphonobutane-1,2,4-tricarboxylic acid tetra sodium salt, 1-hydroxyethylidene-1,1-diphosphonic acid, and aminotrimethylene phosphonate and wherein the scale inhibiting agent is present from about 14% to about 16% by weight of the composition.