CN102678971B - Differential pressure temperature control valve - Google Patents
Differential pressure temperature control valve Download PDFInfo
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- CN102678971B CN102678971B CN 201210144471 CN201210144471A CN102678971B CN 102678971 B CN102678971 B CN 102678971B CN 201210144471 CN201210144471 CN 201210144471 CN 201210144471 A CN201210144471 A CN 201210144471A CN 102678971 B CN102678971 B CN 102678971B
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Abstract
The invention provides a differential pressure temperature control valve and belongs to the technical field of machinery. The problems that the conventional temperature control valve is complex in structure and cannot balance the differential pressure of a system are solved. The differential pressure temperature control valve comprises a valve body in which cavities are formed, wherein two independent cavities are formed in the valve body, namely a hot water cavity and a cold water cavity; a hot water inlet and a hot water outlet which are communicated with the hot water cavity are formed in the valve body; a cold water inlet and a cold water outlet which are communicated with the cold water cavity are formed in the valve body; a first valve core is arranged in the hot water cavity and is connected with a temperature control component; when the temperature detected by the temperature control component exceeds the set temperature, the hot water outlet can be closed by the first valve core; a second valve core is arranged in the cold water cavity; and a pressure guide structure communicated with the cold water inlet is formed in the valve body and is connected with the second valve core. The differential pressure temperature control valve has the advantages of simple structure, stable temperature and pressure control, high practical value and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of valve, particularly a kind of pressure reduction thermostat valve.
Background technique
Pressure difference valve is specially adapted in household metering or the automatic control system.It does not need the external energy, relies on to be transferred the variation of medium self pressure to automatically adjust, and eliminates the residual pressure head of pipe network and the changes in flow rate that pressure surge causes automatically, and constant user's inlet outlet pressure differential helps the stable system operation.
It is that flow control valve is used the typical case of domain of control temperature that heat-operated valve is called for short thermostat valve, its basic principle: by control heat exchanger, air-conditioning unit or other with heat, cool equipment, hot (cold) matchmaker inlet flow rate once, to reach the control apparatus outlet temperature.When load changes, regulate flow by changing valve opening degree, to eliminate the influence that fluctuation of load causes, make temperature return to setting value.
As can be seen, to realize simultaneously that in system above-mentioned two functions must install a pressure difference valve and a thermostat valve.Make the whole system complex structure like this, and cost is than higher.
Its publication number of Chinese patent CN201706002U provide a kind of thermostat valve, and it mainly utilizes a water-flowing amount control device that is configured on the temperature control assembly, regulates hot water or cold water's mixed proportion, and then control mixing water temperature.Described water-flowing amount control device comprises a cold water port, a hot water port, a cold water containment wall wall and a hot water containment wall wall that is configured in this temperature control assembly; When the temperature control assembly is rotated by a drive motor original place, can drive this cold water containment wall wall simultaneously and hot water containment wall wall suitably covers relative cold water port and hot water port, make cold water and hot water flow into the water flow that valve core inside mixes and to be the inverse relation increase and decrease.A kind of thermostat valve that the utility model provides can reduce the torsional resistance of spool significantly and improve the precision of temperature control, therefore, can adopt low torsion, drive motor that volume is little, also can dwindle the temperature control error amount.
But it still can't balance sysmte pressure reduction.Existing other thermostat valves also all exist similar problem.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist at prior art, and a kind of pressure reduction thermostat valve simple in structure, lower-cost is provided.
The purpose of this utility model can realize by following technical proposal: a kind of pressure reduction thermostat valve, comprise the inner valve body of cavity that is, it is characterized in that, have two independently cavitys in the described valve body: hot water cavity and cold water cavity, have the hot water intake and the hot water outlet that communicate with hot water cavity on the described valve body, also have the cold water intake and the cold water outlet that communicate with cold water cavity on the described valve body, being provided with spool one and spool one and temperature control assembly in the described hot water cavity links, spool one can be closed hot water outlet when the temperature of temperature control component detection surpasses its setting temperature, be provided with spool two in the described cold water cavity, the pilot structure that communicates with cold water intake of tool also in the described valve body, described pilot structure and above-mentioned spool two link.
Cold water intake and cold water source at this pressure reduction thermostat valve link, and hot water intake and thermal water source link, and cold water outlet and hot water outlet are connected in user side by pipeline.
When the pressure reduction between user side and the cold water source was in setting range, the pilot structure spool two of being failure to actuate was in cold water outlet closing state.When the user side temperature was lower than the setting temperature of temperature control assembly, spool one was in the state that hot water outlet is opened, and has only flow of hot water through this valve in this process, makes hot water directly enter user side; When the user side temperature was higher than the setting temperature of temperature control assembly, spool one was in the hot water outlet closing state, and hot water and cold water all can not enter user side by this valve in this process.
When the pressure reduction between user side and the thermal water source surpassed setting range, pilot structure action spool two was in the state that cold water outlet is opened.When the user side temperature was lower than the setting temperature of temperature control assembly, spool one was in the state that hot water outlet is opened, and hot water and cold water this valve of flowing through simultaneously makes cold and hot mixing water enter user side in this process; When the user side temperature was higher than the setting temperature of temperature control assembly, spool one was in the hot water outlet closing state, has only cold water to enter user side by this valve in this process.
Obviously, not only eliminate the residual pressure head of pipe network and the changes in flow rate that pressure surge causes in the said process, constant user's inlet outlet pressure differential helps the stable system operation.And, make that also user side has stationary temperature.
In above-mentioned pressure reduction thermostat valve, described pilot structure is the valve gap that is connected in valve end, be provided with diaphragm between described valve gap and the valve body, above-mentioned diaphragm is divided into two independently cavitys with valve end, form between above-mentioned diaphragm and the valve gap and have the pressure guide hole that pilot chamber and cold water intake port place are linked on pilot chamber and the valve body, above-mentioned spool two is connected with diaphragm.
When cold water inlet hydraulic pressure was too high, water made diaphragm drive spool two after pressure guide hole enters cavity between diaphragm and the valve gap under this hydraulic pressure effect and moves, and spool two has the cold water outlet of disengaging makes cold water can continue to enter user side through this valve.
In above-mentioned pressure reduction thermostat valve, described spool two is connected in guide rod middle part, and an end and the diaphragm of guide rod are connected, and is with spring two on the described guide rod and has the trend that moves to cold water outlet and cold water outlet is closed at the elastic force effect lower valve core two of spring two.
That is to say that cold water outlet is in closed condition all the time when the user side inlet outlet pressure differential is constant.Have only when pressure reduction surpasses setting value cold water outlet eloquence to open.
In above-mentioned pressure reduction thermostat valve, described spool one is enclosed within the guide rod the other end and is with spring one at guide rod, and the two ends of described spring one act on respectively on spool one and the valve body and have the trend that breaks away from hot water outlet and hot water outlet is opened at one elastic force effect lower valve core one of spring.
The temperature control assembly is failure to actuate when the user side temperature is lower than setting value, makes hot water outlet continue water outlet; In case when the user side temperature reached setting value, temperature control assembly action drives spool one moves to closed hot water outlet.
In above-mentioned pressure reduction thermostat valve, the push rod in the described temperature control assembly is resisted against on the above-mentioned spool one.
When the user side temperature was higher than setting value, temperature control assembly action was stretched out push rod, and the push rod that stretches out compresses spool one, and spool one overcomes and moves to the hot water outlet place behind spring one spring and hot water outlet is closed.
In above-mentioned pressure reduction thermostat valve, the two ends of described guide rod lay respectively in cold water cavity and the hot water cavity, and are provided with seal ring between guide rod middle part and the valve body.
Make hot water cavity and cold water cavity not connected by seal ring.
In above-mentioned pressure reduction thermostat valve, an end of described guide rod is fixed with the diaphragm gland, and the diaphragm gland is resisted against on the above-mentioned diaphragm, and the other end of described guide rod has the retaining edge, and above-mentioned spool one is being resisted against under the elastic force effect of spring one on the retaining edge.
Because the two ends of guide rod have retaining edge and diaphragm gland respectively, retaining edge and diaphragm gland all can be resisted against the valve body inboard when guide rod moves to a certain degree, and such structure makes guide rod to come off, and has improved stability in use.
In above-mentioned pressure reduction thermostat valve, be provided with blocking cap in the described hot water cavity, above-mentioned hot water cavity is positioned at blocking cap one side, above-mentioned temperature control assembly is positioned at the blocking cap opposite side, be equipped with valve rod on the blocking cap, one end and the temperature control assembly of described valve rod link, and the valve rod the other end has the valve core case that moves energy roof pressure spool one when valve rod.
By blocking cap hot water cavity is sealed, valve rod can smooth and easy movement simultaneously.
In above-mentioned pressure reduction thermostat valve, has seal ring between described valve rod and the blocking cap.
Compared with prior art, this pressure reduction thermostat valve combines pressure difference valve and thermostat valve, and it can not only constant user's inlet outlet pressure differential and can also carry out thermostatically control to the water of user side, and therefore, its applicability is higher.Simultaneously, it has also simplified whole whole system, and cost is lower, has the higher utility of ratio.
Description of drawings
Fig. 1 is the sectional structure schematic representation of this pressure reduction thermostat valve.
Among the figure, 1, valve body; 2, hot water cavity; 2a, hot water intake; 2b, hot water outlet; 3, cold water cavity; 3a, cold water intake; 3b, cold water outlet; 4, spool one; 5, spool two; 6, valve gap; 7, diaphragm; 8, pilot chamber; 9, pressure guide hole; 10, guide rod; 11, spring two; 12, spring one; 13, diaphragm gland; 14, temperature control assembly; 15, blocking cap; 16, valve rod.
Embodiment
As shown in Figure 1, this pressure reduction thermostat valve comprises that inside is the valve body 1 of cavity, has two independently cavitys: hot water cavity 2 and cold water cavity 3 in the valve body 1.Have the hot water intake 2a and the hot water outlet 2b that communicate with hot water cavity 2 on the valve body 1, also have the cold water intake 3a and the cold water outlet 3b that communicate with cold water cavity 3 on the valve body 1.
Be provided with spool 1 and spool 1 and temperature control assembly 14 in the hot water cavity 2 and link, spool 1 can be closed hot water outlet 2b when the temperature of temperature control assembly 14 detections surpasses its setting temperature.Be provided with spool 25 in the cold water cavity 3, the pilot structure that communicates with cold water intake 3a of tool also in the valve body 1, pilot structure and above-mentioned spool 25 link.
The pilot structure is the valve gap 6 that is connected in valve body 1 end, is provided with diaphragm 7 between valve gap 6 and the valve body 1, and diaphragm 7 is divided into two independently cavitys with valve body 1 end portion.Form between diaphragm 7 and the valve gap 6 and have the pressure guide hole 9 that pilot chamber 8 and cold water intake 3a port are linked on pilot chamber 8 and the valve body 1, above-mentioned spool 25 is connected with diaphragm 7.
Spool 25 is connected in a guide rod 10 middle parts, and an end and the diaphragm 7 of guide rod 10 are connected, and is with spring 2 11 on the guide rod 10 and has the trend that moves to cold water outlet 3b and cold water outlet 3b is closed at the elastic force effect lower valve core 25 of spring 2 11.Spool 1 is enclosed within guide rod 10 the other ends and is with spring 1 at guide rod 10, and the two ends of spring 1 act on respectively on spool 1 and the valve body 1 and have the trend that breaks away from hot water outlet 2b and hot water outlet 2b is opened at the elastic force effect lower valve core 1 of spring 1.In the present embodiment, the two ends of guide rod 10 lay respectively in cold water cavity 3 and the hot water cavity 2, and are provided with seal ring between guide rod 10 middle parts and the valve body 1.
One end of guide rod 10 is fixed with diaphragm gland 13, and diaphragm gland 13 is resisted against on the above-mentioned diaphragm 7, and the other end of guide rod 10 has the retaining edge, and spool 1 is being resisted against under the elastic force effect of spring 1 on the retaining edge.
Push rod in the temperature control assembly 14 is resisted against on the above-mentioned spool 1.Be provided with blocking cap 15 in the hot water cavity 2, above-mentioned hot water cavity 2 is positioned at blocking cap 15 1 sides, and above-mentioned temperature control assembly 14 is positioned at blocking cap 15 opposite sides, is equipped with valve rod 16 on the blocking cap 15, one end and the temperature control assembly 14 of valve rod 16 link, and valve rod 16 the other ends have the valve core case that moves energy roof pressure spool 1 when valve rod 16.In the present embodiment, has seal ring between valve rod 16 and the blocking cap 15.
When the pressure reduction between user side and the cold water source was in setting range, the pilot structure spool 25 of being failure to actuate was in cold water outlet 3b closing state.When the user side temperature was lower than the setting temperature of temperature control assembly 14, spool 1 was in the state that hot water outlet 2b is opened, and has only flow of hot water through this valve in this process, makes hot water directly enter user side; When the user side temperature was higher than the setting temperature of temperature control assembly 14, spool 1 was in the closing state with hot water outlet 2b, and hot water and cold water all can not enter user side by this valve in this process.
When the pressure reduction between user side and the thermal water source surpassed setting range, pilot structure action spool 25 was in the state that cold water outlet 3b is opened.When the user side temperature was lower than the setting temperature of temperature control assembly 14, spool 1 was in the state that hot water outlet 2b is opened, and hot water and cold water this valve of flowing through simultaneously makes cold and hot mixing water enter user side in this process; When the user side temperature was higher than the setting temperature of temperature control assembly 14, spool 1 was in the closing state with hot water outlet 2b, has only cold water to enter user side by this valve in this process.
Obviously, not only eliminate the residual pressure head of pipe network and the changes in flow rate that pressure surge causes in the said process, constant user's inlet outlet pressure differential helps the stable system operation.And, make that also user side has stationary temperature.
Claims (8)
1. pressure reduction thermostat valve, comprise the inner valve body of cavity (1) that is, it is characterized in that, have two independently cavitys in the described valve body (1): hot water cavity (2) and cold water cavity (3), have the hot water intake (2a) and the hot water outlet (2b) that communicate with hot water cavity (2) on the described valve body (1), also have the cold water intake (3a) and the cold water outlet (3b) that communicate with cold water cavity (3) on the described valve body (1), being provided with spool one (4) and spool one (4) and temperature control assembly (14) in the described hot water cavity (2) links, spool one (4) can be closed hot water outlet (2b) when the temperature of temperature control assembly (14) detection surpasses its setting temperature, be provided with spool two (5) in the described cold water cavity (3), the pilot structure that communicates with cold water intake (3a) of tool also in the described valve body (1), described pilot structure and above-mentioned spool two (5) link.
2. pressure reduction thermostat valve according to claim 1, it is characterized in that, described pilot structure is for being connected in the valve gap (6) of valve body (1) end, be provided with diaphragm (7) between described valve gap (6) and the valve body (1), above-mentioned diaphragm (7) is divided into two independently cavitys with valve body (1) end portion, form between above-mentioned diaphragm (7) and the valve gap (6) and have the pressure guide hole (9) that pilot chamber (8) and cold water intake (3a) port are linked on pilot chamber (8) and the valve body (1), above-mentioned spool two (5) and diaphragm (7) are connected.
3. pressure reduction thermostat valve according to claim 2, it is characterized in that, described spool two (5) is connected in a guide rod (10) middle part, one end of guide rod (10) and diaphragm (7) are connected, and are with spring two (11) on the described guide rod (10) and have the trend that moves to cold water outlet (3b) and cold water outlet (3b) is closed at the elastic force effect lower valve core two (5) of spring two (11).
4. pressure reduction thermostat valve according to claim 2, it is characterized in that, described spool one (4) is enclosed within guide rod (10) the other end and is with spring one (12) at guide rod (10), the trend that the two ends of described spring one (12) act on respectively that spool one (4) and valve body (1) are gone up and have disengaging hot water outlet (2b) and hot water outlet (2b) is opened at one elastic force effect lower valve core one (4) of spring.
5. according to claim 1 or 2 or 3 or 4 described pressure reduction thermostat valves, it is characterized in that the push rod in the described temperature control assembly (14) is resisted against on the above-mentioned spool one (4).
6. pressure reduction thermostat valve according to claim 3 is characterized in that, the two ends of described guide rod (10) lay respectively in cold water cavity (3) and the hot water cavity (2), and is provided with seal ring between guide rod (10) middle part and the valve body (1).
7. pressure reduction thermostat valve according to claim 3, it is characterized in that, one end of described guide rod (10) is fixed with diaphragm gland (13), diaphragm gland (13) is resisted against on the above-mentioned diaphragm (7), the other end of described guide rod (10) has the retaining edge, and above-mentioned spool one (4) is resisted against retaining along last under the elastic force effect of spring one (12).
8. according to claim 1 or 2 or 3 or 4 described pressure reduction thermostat valves, it is characterized in that, be provided with blocking cap (15) in the described hot water cavity (2), above-mentioned hot water cavity (2) is positioned at blocking cap (15) one sides, above-mentioned temperature control assembly (14) is positioned at blocking cap (15) opposite side, be equipped with valve rod (16) on the blocking cap (15), an end of described valve rod (16) and temperature control assembly (14) link, and valve rod (16) the other end has the valve core case when the mobile energy of valve rod (16) roof pressure spool one (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210144471 CN102678971B (en) | 2012-05-10 | 2012-05-10 | Differential pressure temperature control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210144471 CN102678971B (en) | 2012-05-10 | 2012-05-10 | Differential pressure temperature control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102678971A CN102678971A (en) | 2012-09-19 |
| CN102678971B true CN102678971B (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210144471 Expired - Fee Related CN102678971B (en) | 2012-05-10 | 2012-05-10 | Differential pressure temperature control valve |
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| CN (1) | CN102678971B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK180259B1 (en) * | 2015-03-26 | 2020-09-17 | Danfoss As | A method of operating a valve actuator for a balancing valve |
| CN107990023B (en) * | 2016-10-26 | 2019-11-26 | 3M创新有限公司 | Reversal valve and household water filter including the reversal valve |
| FR3108414B1 (en) * | 2020-03-18 | 2022-06-10 | Vernet | Instrumented device for a mixer tap, as well as mixer tap comprising such an instrumented device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290139B1 (en) * | 1999-11-19 | 2001-09-18 | Kolze, Inc. | Hydraulically actuated mixing valve |
| CN2554434Y (en) * | 2002-05-17 | 2003-06-04 | 谢庆俊 | Thermostat balanced pressure tap |
| AU2003901522A0 (en) * | 2003-04-02 | 2003-05-01 | Christopher James Murray | Water recovery systems and control valves |
| CN202708202U (en) * | 2012-05-10 | 2013-01-30 | 卓旦春 | Pressure difference temperature control valve |
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2012
- 2012-05-10 CN CN 201210144471 patent/CN102678971B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102678971A (en) | 2012-09-19 |
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Owner name: VOLDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Free format text: FORMER OWNER: ZHUO DANCHUN Effective date: 20140410 |
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Free format text: CORRECT: ADDRESS; FROM: 317608 TAIZHOU, ZHEJIANG PROVINCE TO: 223900 SUQIAN, JIANGSU PROVINCE |
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Effective date of registration: 20140410 Address after: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee after: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Address before: Taizhou City, Zhejiang province 317608 Yuhuan County Lu Pu Industrial Park Zhejiang world HVAC technology Co Ltd Patentee before: Zhuo Danchun |
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Effective date of registration: 20170301 Address after: Jiangdong Road Jianye District of Nanjing City, Jiangsu province 210019 C Wanda Center No. 108 Room 501 Patentee after: Jiangsu Wo Hui Industrial Technology Group Limited Address before: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee before: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. |
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Granted publication date: 20130821 Termination date: 20180510 |
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| CF01 | Termination of patent right due to non-payment of annual fee |