CN214743367U - Temperature and flow regulating valve - Google Patents
Temperature and flow regulating valve Download PDFInfo
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- CN214743367U CN214743367U CN202120585927.1U CN202120585927U CN214743367U CN 214743367 U CN214743367 U CN 214743367U CN 202120585927 U CN202120585927 U CN 202120585927U CN 214743367 U CN214743367 U CN 214743367U
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- power head
- temperature
- control valve
- valve body
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 47
- 239000012528 membrane Substances 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims description 35
- 239000002826 coolant Substances 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a temperature flow control valve. The temperature and flow regulating valve is composed of a regulating valve body, a power head assembly, a flow regulating assembly and the like. The power head part consists of an upper membrane cover, an elastic membrane and a lower membrane cover. The elastic diaphragm and the upper diaphragm cover define an upper power head chamber together. The power head upper chamber is connected with the temperature sensing bulb through the capillary tube. The elastic diaphragm and the lower diaphragm cover define a power head lower chamber together. And the lower film cover is provided with film cover holes which are respectively communicated with the lower chamber of the power head and the external atmosphere. The beneficial effects of the utility model reside in that: because the lower chamber of the power head is communicated with the outside atmosphere, the pressure in the lower chamber of the power head is constant at the atmospheric pressure, namely, the lower chamber of the power head is not influenced by the pressure fluctuation of fluid in the valve, and the lower chamber of the power head has the characteristics of high adjusting precision, simple structure, convenient manufacture and high cost performance.
Description
Technical Field
The utility model relates to a temperature flow control, especially, temperature flow control valve.
Background
At present, a temperature and flow regulating valve in the market basically adopts a structure of a thermal expansion valve, namely, the temperature and flow regulating valve is provided with a power head component, a temperature sensing bulb and a capillary tube. The flow rate within the valve is controlled by movement of an elastomeric diaphragm in the powerhead assembly. Wherein, the system pressure is below the elastic diaphragm. Therefore, the system pressure fluctuation seriously affects the temperature control, and the accuracy is poor. As heat pump systems are more and more commonly used for building heating, there is a higher demand for temperature control of the compressor. Therefore, a temperature and flow regulating valve which is high in regulating precision and not influenced by system pressure needs to be designed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that temperature flow control valve is low owing to the influence that receives system pressure among the prior art, adjusts the precision, can only be at the field control, and the problem of unable preset temperature provides a neotype temperature flow control valve.
In order to realize the purpose, the technical scheme of the utility model is as follows: a temperature and flow rate regulating valve comprises a temperature and flow rate regulating valve,
the regulating valve comprises a regulating valve body, a valve body and a valve body, wherein a liquid inlet cavity, a liquid outlet cavity and a control valve port between the liquid inlet cavity and the liquid outlet cavity are formed in the regulating valve body, and the control valve port extends vertically;
the power head component is fixed at the top of the regulating valve body and consists of an upper membrane cover, an elastic membrane and a lower membrane cover, the elastic membrane and the upper membrane cover jointly define an upper power head chamber, the upper power head chamber is connected with the temperature sensing bulb through the capillary tube, the temperature sensing bulb is used for sampling the real-time temperature of a target object, the elastic membrane and the lower membrane cover jointly define a lower power head chamber, and a membrane cover hole is formed in the lower membrane cover and is respectively communicated with the lower power head chamber and the external atmosphere; and the number of the first and second groups,
the flow regulating assembly is provided with a control valve core and a vertical push rod, the opening degree of the control valve core and the opening degree of the control valve port determine the flow of a cooling medium, and the elastic diaphragm controls the conical valve core to move up and down through the vertical push rod.
As a preferred scheme of the temperature and flow control valve, a liquid inlet port connected with the liquid inlet chamber and a liquid outlet port connected with the liquid outlet chamber are formed on the side wall of the control valve body, and the liquid inlet port and the liquid outlet port are respectively used as an inlet and an outlet of a cooling medium.
As a preferable scheme of the temperature and flow regulating valve, the control valve core is a conical valve core.
As a preferable scheme of the temperature and flow rate adjusting valve, the elastic membrane, the vertical push rod, the control valve core and the control valve port all have a common axis.
As a preferable scheme of the temperature and flow rate adjusting valve, the flow rate adjusting assembly further includes a vertical spring and a spring fixing seat, the spring fixing seat is located below the control valve core, a vertical interval is formed between the spring fixing seat and the control valve core, and the vertical spring is located between the control valve core and the spring fixing seat and used for upwards supporting the control valve core. The flow regulating assembly is also provided with a vertical screw rod below the spring fixing seat, the vertical screw rod is in threaded connection with the bottom wall of the regulating valve body, the upper end of the vertical screw rod is fixedly connected with the spring fixing seat, and the lower end of the vertical screw rod is a screwing part.
As a preferred scheme of the temperature and flow control valve, the elastic diaphragm is located above the top wall of the control valve body, the vertical push rod is provided with an upper push rod section which penetrates out of the top wall of the control valve body upwards, the top surface of the upper push rod section is abutted against the bottom surface of the elastic diaphragm, the flow control assembly is further provided with a vertical corrugated pipe, the vertical corrugated pipe surrounds the periphery of the upper push rod section, the top edge of the vertical corrugated pipe is circumferentially sealed with the upper push rod section, and the bottom edge of the vertical corrugated pipe is circumferentially sealed with the top wall of the control valve body.
Compared with the prior art, the beneficial effects of the utility model reside in at least: because the lower chamber of the power head is communicated with the outside atmosphere, the pressure in the lower chamber of the power head is constant at the atmospheric pressure, namely, the lower chamber of the power head is not influenced by the pressure fluctuation of fluid in the valve, and the lower chamber of the power head has the characteristics of high adjusting precision, simple structure, convenient manufacture and high cost performance.
In addition to the technical problems, technical features constituting technical aspects, and advantageous effects brought by the technical features of the technical aspects described above, other technical problems, technical features included in the technical aspects, and advantageous effects brought by the technical features solved by the present invention will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, a temperature-flow regulating valve is shown. The temperature and flow regulating valve is an actuating mechanism which is controlled by a temperature signal and can realize automatic flow regulation and intelligent management. The temperature and flow regulating valve can be applied to the exhaust temperature of various refrigerating systems of air conditioners, heat pumps, freezing, refrigeration and the like or the temperature control of each part of the compressor.
The temperature and flow regulating valve is composed of a regulating valve body 1, a power head assembly 2, a flow regulating assembly 3 and the like.
The regulating valve body 1 is internally provided with a liquid inlet cavity chamber 11, a liquid outlet cavity chamber 12 and a valve cavity partition plate between the liquid inlet cavity chamber 11 and the liquid outlet cavity chamber 12. The valve cavity partition plate is provided with a control valve port 13 which is respectively communicated with the liquid inlet cavity 11 and the liquid outlet cavity 12. The control valve port 13 extends vertically. A liquid inlet interface 14 communicated with the liquid inlet cavity 11 and a liquid outlet interface 15 communicated with the liquid outlet cavity 12 are formed on the side wall of the regulating valve body 1. The liquid inlet port 14 and the liquid outlet port 15 are respectively used as an inlet and an outlet of a refrigerant. In this embodiment, the liquid inlet port 14 and the liquid outlet port 15 are respectively located on the left side and the right side of the regulating valve body 1.
The power head assembly 2 comprises a power head component 21, a temperature sensing bulb 22, a capillary tube 23 and the like. The power head part 21 is fixed on the top of the regulating valve body 1. The power head unit 21 is composed of an upper diaphragm cover 211, an elastic diaphragm 212, and a lower diaphragm cover 213. The elastic membrane 212 is located between the upper membrane cover 211 and the lower membrane cover 213. The elastic diaphragm 212 and the upper diaphragm cover 211 jointly define a power head upper chamber. The power head upper chamber is communicated with the temperature sensing bulb 22 through the capillary tube 23. The thermal bulb 22 has a medium therein. The thermal bulb 22 is used for sampling the real-time temperature of the target (the real-time temperature of the target is used as the temperature signal). The elastic diaphragm 212 and the lower diaphragm cover 213 define a lower chamber of the power head together. The lower film cover 213 is formed with a film cover hole. The membrane cover hole is respectively communicated with the lower chamber of the power head and the external atmosphere, namely the lower chamber of the power head is under constant atmospheric pressure.
The flow regulating assembly 3 is provided with a vertical push rod 31, a conical valve core 32, a spring fixing seat 33, a vertical spring 34, a sealing ring and the like. The conical spool 32 is located inside the control valve port 13. The opening degrees of the conical valve element 32 and the control valve port 13 determine the flow rate of the cooling medium. The vertical push rod 31 is located between the elastic diaphragm 212 and the conical valve core 32, that is, the upper end of the vertical push rod 31 abuts against the elastic diaphragm 212, and the lower end of the vertical push rod 31 abuts against the conical valve core 32. The spring fixing seat 33 is located below the conical valve core 32 and has a vertical interval therebetween. The vertical spring 34 is located between the conical valve core 32 and the spring fixing seat 33. The vertical spring 34 always provides an upward spring force for supporting the control spool upward.
Preferably, the flow regulating assembly 3 also has a vertical screw 35. The vertical screw 35 is located below the spring fixing seat 33. The vertical screw 35 is in threaded connection with the bottom wall of the regulating valve body 1. The upper end of the vertical screw 35 is fixedly connected with the spring fixing seat 33, and the lower end of the vertical screw 35 is a screwing part. The vertical screw 35 is provided to vertically displace the spring fixing seat 33 by screwing the lower end of the vertical screw 35, that is, to adjust the vertical interval to change the upward elasticity of the vertical spring 34 on the conical valve core 32, so as to set the parameters of the temperature and flow regulating valve, such as the balance temperature.
Preferably, the vertical push rod 31 has a push rod upper section which protrudes upward from the top wall of the regulating valve body 1. The top surface of the upper section of the push rod is abutted against the bottom surface of the elastic membrane 212. The flow regulating assembly 3 also has a vertical bellows 36. The vertical corrugated pipe 36 surrounds the periphery of the upper section of the push rod. Wherein the top edge of the vertical bellows 36 is sealed (e.g., welded) to the upper section of the push rod, and the bottom edge of the vertical bellows 36 is sealed (e.g., welded) to the top wall of the regulator valve body 1. The vertical corrugated pipe 36 has certain flexibility, and the top edge of the vertical corrugated pipe 36 and the upper section of the push rod act synchronously. It can be seen that the above design can prevent the cooling medium inside the regulating valve body 1 from flowing out along the vertical push rod 31.
The working principle of the temperature and flow regulating valve is as follows:
the inlet port 14 is used for inputting the cooling medium. The liquid outlet 15 is used for outputting the cooling medium.
In the initial state, the flow rate of the cooling medium just keeps the temperature of the target stable, that is, the target reaches the equilibrium temperature, and the real-time temperature sampled by the thermal bulb 22 is the equilibrium temperature. At this time, the conical spool 32 is in equilibrium, i.e., the evaporation pressure generated by the medium in the bulb 22 acts on the elastic diaphragm 212. The downward pressure of the flexible diaphragm 212 is equal to the evaporation pressure of the medium in the bulb 22 multiplied by the area of the flexible diaphragm 212. The downward pressure of the elastic diaphragm 212 is transmitted to the conical valve core 32 through the vertical push rod 31. The conical spool 32 is also subjected to an upward spring force by the vertical spring 34. At this time, the two forces are equal and the conical spool 32 is in equilibrium.
If the temperature of the target rises, the real-time temperature sampled by the thermal bulb 22 is greater than the equilibrium temperature, the evaporation pressure of the medium in the thermal bulb 22 rises, and the downward pressure generated by the elastic diaphragm 212 rises. At this time, the elastic membrane 212 drives the vertical push rod 31 to move down the conical valve core 32. Since the conical spool 32 moves downward, that is, the opening between the conical spool 32 and the control valve port 13 increases, the flow rate of the cooling medium increases. The cooling medium flow is increased to urge the target downward to an equilibrium temperature.
If the temperature of the target object is reduced and the real-time temperature sampled by the thermal bulb 22 is lower than the equilibrium temperature, the evaporation pressure of the medium in the thermal bulb 22 is reduced, and the downward pressure generated by the elastic diaphragm 212 is reduced. At this time, the vertical spring 34 drives the vertical push rod 31 to move up the conical valve core 32. Since the conical spool 32 moves upward, that is, the opening between the conical spool 32 and the control valve port 13 decreases, the flow rate of the cooling medium decreases accordingly. The cooling medium flow is reduced, causing the target to return upward to an equilibrium temperature.
The above description is only intended to represent embodiments of the present invention, which are more specific and detailed, but not to be construed as limiting the scope of the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The temperature and flow rate regulating valve is characterized by comprising,
the regulating valve comprises a regulating valve body, a valve body and a valve body, wherein a liquid inlet cavity, a liquid outlet cavity and a control valve port between the liquid inlet cavity and the liquid outlet cavity are formed in the regulating valve body, and the control valve port extends vertically;
the power head component is fixed at the top of the regulating valve body and consists of an upper membrane cover, an elastic membrane and a lower membrane cover, the elastic membrane and the upper membrane cover jointly define an upper power head chamber, the upper power head chamber is connected with the temperature sensing bulb through the capillary tube, the temperature sensing bulb is used for sampling the real-time temperature of a target object, the elastic membrane and the lower membrane cover jointly define a lower power head chamber, and a membrane cover hole is formed in the lower membrane cover and is respectively communicated with the lower power head chamber and the external atmosphere; and the number of the first and second groups,
the flow regulating assembly is provided with a control valve core and a vertical push rod, the opening degree of the control valve core and the opening degree of the control valve port determine the flow of a cooling medium, and the elastic diaphragm controls the control valve core to move up and down through the vertical push rod;
the elastic diaphragm is arranged above the top wall of the adjusting valve body, the vertical push rod is provided with an upper push rod section which is upwards penetrated out from the top wall of the adjusting valve body, the top surface of the upper push rod section is abutted against the bottom surface of the elastic diaphragm, the flow regulating assembly is further provided with a vertical corrugated pipe, the vertical corrugated pipe surrounds the periphery of the upper push rod section, the top edge of the vertical corrugated pipe is circumferentially sealed with the upper push rod section, and the bottom edge of the vertical corrugated pipe is circumferentially sealed with the top wall of the adjusting valve body.
2. The temperature and flow rate adjusting valve according to claim 1, wherein a liquid inlet port connected to the liquid inlet chamber and a liquid outlet port connected to the liquid outlet chamber are formed on a side wall of the adjusting valve body, and the liquid inlet port and the liquid outlet port are respectively used as an inlet and an outlet of a cooling medium.
3. The temperature-flow regulating valve of claim 1, wherein the control spool is a conical spool.
4. The temperature-flow regulating valve of claim 1, wherein the resilient diaphragm, the vertical pushrod, the control spool, and the control valve port all have a common axis.
5. The temperature-flow control valve of claim 1, wherein the flow regulating assembly further comprises a vertical spring and a spring retainer, the spring retainer is located below the control valve spool with a vertical space therebetween, the vertical spring is located between the control valve spool and the spring retainer, and the vertical spring is configured to support the control valve spool upward.
6. The temperature-flow control valve according to claim 5, wherein the flow control assembly further comprises a vertical screw rod disposed below the spring fixing seat, the vertical screw rod is screwed with the bottom wall of the control valve body, an upper end of the vertical screw rod is fixedly connected with the spring fixing seat, and a lower end of the vertical screw rod is a screwing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120585927.1U CN214743367U (en) | 2021-03-23 | 2021-03-23 | Temperature and flow regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120585927.1U CN214743367U (en) | 2021-03-23 | 2021-03-23 | Temperature and flow regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214743367U true CN214743367U (en) | 2021-11-16 |
Family
ID=78596439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120585927.1U Active CN214743367U (en) | 2021-03-23 | 2021-03-23 | Temperature and flow regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214743367U (en) |
-
2021
- 2021-03-23 CN CN202120585927.1U patent/CN214743367U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Temperature and flow control valve Granted publication date: 20211116 Pledgee: Huangpu Sub branch of Bank of Shanghai Co.,Ltd. Pledgor: Shanghai Thermostat Factory Co.,Ltd. Registration number: Y2024310000300 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |