APPARATUS FOR AUTOMATICALLY CONTROLLING A CONSTANT FLOW BY CONSIDERING A HEATING LOAD THE SPECIFICATION OF WHICH

• US 20120043389A1
• Filed: 04/27/2010
• Published: 02/23/2012
• Est. Priority Date: 04/29/2009
• Status: Abandoned Application

• Current Assignee: Semsystem Co., Ltd.
• Original Assignee: Semsystem Co., Ltd.
• Inventors: Yang, Chang Chil
• Application Number:
  US13/266,863
• Publication Number:
  US 20120043389A1
• Time in Patent Office: Days
• US Class Current: 237/59
• CPC Class Codes: F24D 19/1015 using a valve or valves
• CPC Class Codes: F24D 3/1066 Distributors for heating liquids
• CPC Class Codes: G05D 23/1934 each space being provided with one sensor acting on one or more control means
• CPC Class Codes: G05D 7/005 characterised by the use of auxiliary non-electric power combined with the use of electric means
• CPC Class Codes: Y02B 30/70 Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

Provided is an apparatus for automatically controlling a constant flow by considering a heating load in which a necessary request heat amount necessary for optimum heating is calculated by considering a heating load per room to find a optimum flow in proportion to the heat amount and reduce a total constant flow of the household by the optimum flow corresponding to the heating-stopped room, and thereby to save fuel cost in proportion to the heating-stopped flow and decrease tube noise due to cavitation.

Claims

1. An apparatus for automatically controlling a constant flow by considering heating load, comprising:

a supply tube (2) through which warm water is supplied to each household;

a warm water duct (4) which is communicated with the supply tube (2) and is branched to each room, and allows the latent heat of the warm water to be heat-exchanged with the corresponding room;

a water returning pipe (5) which is communicated with the warm water duct (4) and to which the heat exchanged warm water is returned;

a water returning pipe (5) to which flows of the water returning pipe (5) is collected and through which the collected flows are discharged outside;

a temperature adjusting portion (110) which is installed in each room to set a desired temperature thereto and measures an indoor temperature of each room;

a driver (120) which is installed respectively in the water returning pipe (5) and opens and closes a passage of the water returning pipe (5) according to an electrical signal;

a variable flow valve (200,300,400,500) which is installed in the supply tube (2) or the water returning tube (7) and varies the flow of the supply tube or the water returning tube according to another electrical signal; and

a controller (130) which receives the signal from the temperature adjusting portion (110) and controls the driver (120) and the variable flow valve wherein the controller (130) in which an optimum flow value in proportion to a necessary request heat amount of the corresponding room in consideration of heating load per room is stored, controls the driver (120) of the room where heating has to be stopped, according to a signal from the temperature adjusting portion (110) to close a passage of the water returning pipe (5) of the corresponding room, thereby to reduce a flow of the variable flow valve in proportion to a ratio of the optimum flow value of the closed room to a summation of a total optimum flow value.

2. The apparatus for automatically controlling a constant flow by considering heating load of claim 1, wherein the heating load to be stored in the controller is obtained by summating all “

face load amount”

on the respective face forming the room wherein the face load amount is obtained by multiplying at least one factors among “

heat transmission rate, area, azimuth coefficient, and relevant temperature difference”

.

3. The apparatus for automatically controlling a constant flow by considering heating load of claim 1, wherein the variable flow valve (200) comprises:

a body (210) in which a fluid path through which an entrance (211) and an exit (212) are communicated is provided and in which a sheet (213) is formed between the entrance (211) and the exit (212) with decreasing a sectional area of the fluid path;

a chamber (220) in which a hydraulic pressure passage is formed in one inner side of the body (210), which is applied by the entrance (211) side hydraulic pressure and the exit (212) side hydraulic pressure;

a diaphragm (230) which partitions the chamber (220) and is applied both sides by the entrance (211) side hydraulic pressure and the exit (212) side hydraulic pressure, and is deformed by the pressure difference of the entrance and the exit;

a moving body 240 which is connected to one side of the diaphragm (230) and is resiliently installed to adjust a sectional area passing from the sheet (213) toward the exit (212) by the pressure difference in the chamber (220); and

an actuator (250) which adjusts on the other side of the body (210) an opening amount of the sheet (213) by a control signal from the controller (130).

4. The apparatus for automatically controlling a constant flow by considering heating load of claim 3, wherein the moving body (240) comprises:

a head portion (241) which is connected to the diaphragm (230);

a stem portion (242) which is extended from the head portion (241) toward the sheet (213) and adjusts a sectional area of a flow passing from the sheet (213) toward the exit (212); and

a resilient member (243) which is installed between the moving body (240) and the chamber (220) so that the moving body (240) is returned when both side pressures are equal based on the diaphragm (230).

5. The apparatus for automatically controlling a constant flow by considering heating load of claim 1, wherein the variable flow valve (300) comprises:

a body (310) in which a fluid path through which an entrance (311) and an exit (312) are communicated is provided and in which a sheet (313) is formed between the entrance (311) and the exit (312) with decreasing a sectional area of the fluid path;

a chamber (320) in which a hydraulic pressure passage is formed in one inner side of the body (310), which is applied by the entrance (311) side hydraulic pressure and the exit (312) side hydraulic pressure;

a diaphragm (330) which partitions the chamber (320) and is applied both sides by the entrance (311) side hydraulic pressure and the exit (312) side hydraulic pressure, and is deformed by the pressure difference of the entrance and the exit;

a moving body 340 which is connected to the diaphragm (230) and moves to reduce a flow sectional area of an inflection portion (314) passing from the entrance (311) side toward the sheet (313) side when a pressure in the sheet (313) side is greater than that in the exit (312) side; and

an actuator (350) which adjusts an opening amount of the sheet (313) by a control signal from the controller (130).

6. The apparatus for automatically controlling a constant flow by considering heating load of claim 5, wherein an outer peripheral surface of the diaphragm (330) is fixed to an inner wall of the chamber (320) and on an inner peripheral surface of the diaphragm a through portion (331) to which the moving body (340) is connected is formed.

7. The apparatus for automatically controlling a constant flow by considering heating load of claim 6, wherein the moving body (340) comprises:

a head portion (341) which is fitted into the through portion (331) of the diaphragm (330);

a stem portion (342) which is extended from the head portion (341) to the inflection portion (314) through which the entrance (311) side and the sheet (313) side are communicated to adjust a sectional area of a flow passing through the inflection portion (314) according to a deformation of the diaphragm (330); and

a resilient member (343) which is installed on the moving body (340) so that the moving body (340) is returned when both side pressures are equal based on the diaphragm (330).

8. The apparatus for automatically controlling a constant flow by considering heating load of claim 7, wherein a adjusting screw (315) is provided in the inflection portion (314) to adjust initially passing flow by adjusting an interval from the step portion (342).

9. The apparatus for automatically controlling a constant flow by considering heating load of claim 1, wherein the variable flow valve (400) comprises:

a body (410) in which a fluid path through which an entrance (411) and an exit (412) are communicated is provided and in which a sheet (413) is formed between the entrance (411) and the exit (412) with decreasing a sectional area of the fluid path;

a flow sensor (430) which is installed on the fluid path and measures a flow of a fluid passing the fluid path; and

an actuator (450) which adjusts an opening amount of the sheet (413) by a control signal from the controller (130).

10. The apparatus for automatically controlling a constant flow by considering heating load of claim 9, wherein the flow sensor (430) comprises:

a housing which is installed on the fluid path and inside which a through hole (431a) is formed;

a magnetic portion (432) which is installed in a predetermined space along a circumferential direction of the through hole (431a); and

an impeller (433) which is installed rotatively in the through hole (431a) wherein when a rotation velocity of the impeller (433) is varied according to the flow passing through the fluid path, the magnetic portion (432) detects the rotation velocity to transmit it to the controller (130).

11. The apparatus for automatically controlling a constant flow by considering heating load of claim 3, wherein the actuators (250, 350, 450) comprise:

a driving main body (251, 351, 451) which is connected electrically to the controller (130) and converts the electric signal from the controller (130) into kinetic force; and

a moving rod (252, 352, 452) which is extended from the driving main body (251, 351, 451) to be inserted into the body (210, 310, 410) and moves toward the sheet to adjust an opening amount of the sheet (213, 313, 413).

12. The apparatus for automatically controlling a constant flow by considering heating load of claim 11, wherein the driving main bodies (251, 351, 451) comprise:

a driving motor (253) which is connected electrically to the controller (130) to produce a driving force;

a driving gear (255) which transmits the driving force produced from the driving motor (253) to the moving rod (252, 352, 452); and

a variable resistor (258) which is link-moved with the driving gear (255) to sense a displacement amount of the moving rod (252, 352, 452) and feedbacks the sensed displacement amount to the controller (130).

13. The apparatus for automatically controlling a constant flow by considering heating load of claim 1, wherein the variable flow valve (500) comprises:

a body (510) inside which a fluid path through which the entrance (511) and the exit (512) are communicated is provided;

a chamber (520) which is partitioned inside the body (510) by the upper and lower support rods (521, 522) and is communicated with the entrance 511 and the exit (512) of the body;

a diaphragm (530) one end of which is fixed to the lower support rod (522) of the chamber (520) and the other end of which is fixed to a slider (540) connected to the resilient member (545) provided inside the chamber (520), and which partitions the chamber (520) into a first hydraulic pressure chamber (524) to be communicated with the entrance (511) of the body (510) and a second hydraulic pressure chamber (525) to be communicated with the exit (512) of the body (510); and

an actuator (550) which is installed movably along the upper support rod (521) of the chamber (520) and adjusts a sectional area passing from the entrance (511) of the body (510) toward the chamber (520) by a control signal from the controller (130).

14. The apparatus for automatically controlling a constant flow by considering heating load of claim 13, wherein the resilient member (545) is fitted between a guide protrusion (513) to which the slider (540) is mounted movably and the moving rod (552) and is elastically biased by the slider (540) when the diaphragm (530) is deformed by a pressure difference between the first hydraulic pressure chamber (524) and the second hydraulic pressure chamber (525).

15. The apparatus for automatically controlling a constant flow by considering heating load of claim 13, wherein the actuator (550) comprises:

a driving main body (551) which is connected electrically to the controller (130) and converts an electric signal from the controller (130) into a kinetic force;

a moving rod (552) which is moved reciprocally on the driving main body (551) and a lower end of which a plurality of screw threads (553) are formed; and

a flow blocking body (555) which is connected to the screw thread (553) of the moving rod (552) and is moved vertically along the upper support rod (521) when the moving rod (522) is rotated, thereby to adjust a sectional area passing from the entrance (511) of the body (510) toward the chamber (520).

16. The apparatus for automatically controlling a constant flow by considering heating load of claim 13, wherein the actuator (550) comprises:

a driving main body (551) which is connected electrically to the controller (130) and converts an electric signal from the controller (130) into a kinetic force;

a moving rod (552) which is installed rotatively on the driving main body (551) and a lower end of which a plurality of screw threads (553) are formed; and

a flow blocking body (555) which is connected to the screw thread (553) of the moving rod (552) and is moved vertically along the upper support rod (521) when the moving rod (522) is moved reciprocally, thereby to adjust a sectional area passing from the entrance (511) of the body (510) toward the chamber (520).

17. The apparatus for automatically controlling a constant flow by considering heating load of claim 15, wherein the driving main body (551) comprises:

a driving motor (253) which is connected electrically to the controller (130) to produce a driving force;

a driving gear (255) which transmits the driving force produced from the driving motor (253) to the moving rod (552); and

a variable resistor (258) which is link-moved with the driving gear (255) to sense a displacement amount of the moving rod (552) and feedbacks the sensed displacement amount to the controller (130).

18. The apparatus for automatically controlling a constant flow by considering heating load of claim 16, wherein the driving main body (551) comprises:

a driving motor (253) which is connected electrically to the controller (130) to produce a driving force;

a driving gear (255) which transmits the driving force produced from the driving motor (253) to the moving rod (552); and

a variable resistor (258) which is link-moved with the driving gear (255) to sense a displacement amount of the moving rod (552) and feedbacks the sensed displacement amount to the controller (130).

19. The apparatus for automatically controlling a constant flow by considering heating load of claim 5, wherein the actuators (250, 350, 450) comprise:

a driving main body (251, 351, 451) which is connected electrically to the controller (130) and converts the electric signal from the controller (130) into kinetic force; and

a moving rod (252, 352, 452) which is extended from the driving main body (251, 351, 451) to be inserted into the body (210, 310, 410) and moves toward the sheet to adjust an opening amount of the sheet (213, 313, 413).

20. The apparatus for automatically controlling a constant flow by considering heating load of claim 19, wherein the driving main bodies (251, 351, 451) comprise:

a driving motor (253) which is connected electrically to the controller (130) to produce a driving force;

a driving gear (255) which transmits the driving force produced from the driving motor (253) to the moving rod (252, 352, 452); and

a variable resistor (258) which is link-moved with the driving gear (255) to sense a displacement amount of the moving rod (252, 352, 452) and feedbacks the sensed displacement amount to the controller (130).

21. The apparatus for automatically controlling a constant flow by considering heating load of claim 9, wherein the actuators (250, 350, 450) comprise:

a driving main body (251, 351, 451) which is connected electrically to the controller (130) and converts the electric signal from the controller (130) into kinetic force; and

a moving rod (252, 352, 452) which is extended from the driving main body (251, 351, 451) to be inserted into the body (210, 310, 410) and moves toward the sheet to adjust an opening amount of the sheet (213, 313, 413).

22. The apparatus for automatically controlling a constant flow by considering heating load of claim 21, wherein the driving main bodies (251, 351, 451) comprise:

a driving motor (253) which is connected electrically to the controller (130) to produce a driving force;

a driving gear (255) which transmits the driving force produced from the driving motor (253) to the moving rod (252, 352, 452); and

a variable resistor (258) which is link-moved with the driving gear (255) to sense a displacement amount of the moving rod (252, 352, 452) and feedbacks the sensed displacement amount to the controller (130).