CN2814066Y - Two-way thermal expansion valve inner temperature-sensing device - Google Patents
Two-way thermal expansion valve inner temperature-sensing device Download PDFInfo
- Publication number
- CN2814066Y CN2814066Y CN 200520013860 CN200520013860U CN2814066Y CN 2814066 Y CN2814066 Y CN 2814066Y CN 200520013860 CN200520013860 CN 200520013860 CN 200520013860 U CN200520013860 U CN 200520013860U CN 2814066 Y CN2814066 Y CN 2814066Y
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- China
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- valve body
- utility
- expansion valve
- model
- bellows
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- Expired - Fee Related
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Abstract
The utility model relates to a temperature-sensing device in a two-way thermal expansion valve, which belongs to the technical field of a throttling device of a vapor compression heat pump system. The utility model is mainly composed of a valve body (3) whose the upper end is provided with a diaphragm capsule (2) and a return-air passage (4), an inlet air pipe (9) and an outlet air pipe (10) which are arranged at the right end and the left end of the air return passage, a liquid inlet hole (5) and a liquid outlet hole (6) which are arranged at the lower part of the valve body, a valve core (8) arranged between the liquid inlet hole and the liquid outlet hole, a transfer rod (11) arranged between the diaphragm capsule and the valve core, a balancing part rubber sealing ring (7) embedded in the transfer rod of the valve body, etc. After the diaphragm capsule is filled with temperature-sensing agent, the diaphragm capsule is directly soldered and sealed by a sealing steel ball. The utility model has the advantages of reasonable design, simple structure, reliable temperature sensitivity, high regulation sensibility and good sealing property; in addition, the two-way operation is effectively realized by only needs one two-way thermal expansion valve, and cooling (heating) amplitude is big and the energy efficiency ratio is high no matter the utility model is operated under any condition.
Description
Technical field
The utility model relates to temperature sensing device in a kind of two-way heating power expansion valve, belongs to the throttling arrangement technical field of vapor compression heat pump systems.
Background technique
The existing heating power expansion valve that is used for the vapor compression heat pump systems throttling mainly is made of bellows, valve body, spool etc., is outer temperature-sensitive, promptly uses external temperature-sensitive pipe temperature-sensitive, and the temperature-sensitive pipe is connected with bellows by connecting tube, and the temperature-sensitive deviation is big.While can only one-way only operation because the defective on the structural design makes the heating power expansion valve sealability relatively poor.For solving two-way working, take by two heating power expansion valves and two one-way valves, or form throttling arrangement, though can effectively realize bidirectional throttle, structure more complicated, cost height by a heating power expansion valve and four one-way valves.
Summary of the invention
The purpose of this utility model provides a kind of reasonable in design, and is simple in structure, and the temperature-sensitive deviation is little, and can effectively realize the interior temperature sensing device of two-way heating power expansion valve of bidirectional throttle.
The utility model is a temperature sensing device in the two-way heating power expansion valve, the valve body that comprises upper end portion band bellows, place the inlet opening and the liquid outlet opening of valve body lower portion, place the spool between inlet opening and the liquid outlet opening, place the transmission bar between bellows and the spool, it is characterized in that the bellows bottom in the described valve body is provided with return gas channel, the two ends, the left and right sides of return gas channel are provided with into muffler and go out muffler.
The top of described bellows can be with sealing the steel ball solder up.
The transmission bar position of described valve body can be embedded with balance portion rubber seal.
The utility model compared with prior art has following outstanding advantage and good effect:
1, on valve body top the return gas channel that two ends, the left and right sides are brought muffler into and gone out muffler is set, can make low-pressure gaseous refrigerant in the steam compression heat pump system by the return gas channel of flowing through into and out of muffler, guarantee bellows direct temperature-sensitive in valve body, need not outer temperature-sensitive pipe and connect capillary tube, and temperature-sensitive is reliable, and deviation is little.
2, direct behind the filled temperature sensing agent of bellows with sealing the steel ball solder up, need not to fill process duct, not only attractive in appearance, and also seal quality is good, is difficult for leaking.
3, be embedded balance portion rubber seal in the bottom of return gas channel, not only can guarantee the sealing between liquid inlet and outlet hole and the return gas channel, and can guarantee reverse operation the time, rubber seal does not move up under the effect of the high-pressure refrigerant in inlet opening, active force that high-pressure refrigerant only acts on balance portion rubber seal is born by the groove of valve body, and can not pass to bellows, improve its sealability; Also make simultaneously the high pressure of inlet opening inner high voltage refrigeration agent only act on diameter is very little, sectional area is the also very little transmission bar or the end face of needle, make reverse operation become possibility.
The utility model global design is reasonable, simple in structure, only need a two-way heating power expansion valve can effectively realize two-way working, and temperature-sensitive is reliable, regulate highly sensitive, good seal performance, refrigeration (heat) amount is big when moving under any operating mode, the Energy Efficiency Ratio height, the utility model is specially adapted to produce in enormous quantities the air regulator of the employing vapor compression heat pump systems of using with huge numbers of families, be to freeze summer, the cooling and heating type central air-conditioner that can heat winter, room air conditioner etc., as substitute the capillary tube of using that adopts in the existing air regulator with the utility model, the throttling arrangement that threeway and one-way valve are formed, its refrigeration (heat) amount on average can improve more than 1%, and Energy Efficiency Ratio on average can improve more than 13%.
Description of drawings
Accompanying drawing is an overall structure sectional view of the present utility model.
Embodiment
The utility model is mainly by the valve body 3 of upper end portion band bellows 2 and return gas channel 4, place advancing muffler 9 and going out muffler 10 of two ends, return gas channel 4 left and right sides, place the inlet opening 5 and the liquid outlet opening 6 of valve body 3 bottoms, place the spool 8 between inlet opening 5 and the liquid outlet opening 6, place the transmission bar 11 between bellows 2 and the spool 8, be embedded at valve body 3 and transmit balance portion rubber seal 7 formations such as grade at bar 11 positions.Direct behind the bellows 2 filled temperature sensing agents with sealing steel ball 1 solder up.
During work, bellows 2 by transmitting bar 11 transmission of heat and the low-pressure gaseous refrigerant return-air heat transfer by convection of the return gas channel 4 of flowing through experience suction temperature, by transmitting bar 11, and the aperture of spool 8 modulating valve, reach the purpose of automatic adjusting refrigerant flow again.Summer is when freezing, indoor heat converter becomes vaporizer, outdoor heat converter becomes condenser, when indoor heat load increases, the return air temperature of vaporizer will raise, the degree of superheat increases, the increase in temperature that bellows 2 is experienced, the pressure of temperature sensing agent increases in the bellows 2, by transmitting bar 11 and spool 8 aperture of valve is increased under bellows 2 internal pressure effects, the refrigerant flow of supplying with indoor heat converter increases, make the return-air degree of superheat remain on certain value, when indoor load reduced, the suction temperature of vaporizer reduced, the degree of superheat reduces, the temperature that bellows 2 is experienced reduces, and the temperature sensing agent pressure in the bellows 2 reduces, and by transmitting bar 1 and spool 8 aperture of valve is reduced, the refrigerant flow of supplying with indoor side heat exchanger reduces, and makes the return-air degree of superheat remain on certain value.
Identical when freezing with summer during winter heating, but outdoor heat converter becomes vaporizer, indoor heat converter becomes condenser, and high pressure liquid refrigerant oppositely enters from liquid outlet opening 6.
Claims (3)
1, temperature sensing device in a kind of two-way heating power expansion valve, the valve body (3) that comprises upper end portion band bellows (2), place the inlet opening (5) and the liquid outlet opening (6) of valve body (3) bottom, place the spool (8) between inlet opening (5) and the liquid outlet opening (6), place the transmission bar (11) between bellows (2) and the spool (8), it is characterized in that bellows (2) bottom in the described valve body (3) is provided with return gas channel (4), the two ends, the left and right sides of return gas channel (4) are provided with into muffler (9) and go out muffler (10).
2, by temperature sensing device in the described two-way heating power expansion valve of claim 1, the top that it is characterized in that described bellows (2) is with sealing steel ball (1) solder up.
3, by temperature sensing device in the described two-way heating power expansion valve of claim 1, it is characterized in that transmission bar (11) position of described valve body (3) is embedded with balance portion rubber seal (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013860 CN2814066Y (en) | 2005-08-08 | 2005-08-08 | Two-way thermal expansion valve inner temperature-sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013860 CN2814066Y (en) | 2005-08-08 | 2005-08-08 | Two-way thermal expansion valve inner temperature-sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814066Y true CN2814066Y (en) | 2006-09-06 |
Family
ID=36949153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520013860 Expired - Fee Related CN2814066Y (en) | 2005-08-08 | 2005-08-08 | Two-way thermal expansion valve inner temperature-sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814066Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738027B (en) * | 2008-11-25 | 2013-03-06 | 浙江三花股份有限公司 | Two-way heating power expansion valve |
| CN101988585B (en) * | 2009-07-31 | 2013-03-06 | 浙江三花股份有限公司 | Thermal expansion valve |
| CN101749900B (en) * | 2008-12-04 | 2013-09-18 | 浙江三花股份有限公司 | Two-way thermal expansion valve |
| CN105465440A (en) * | 2014-09-01 | 2016-04-06 | 浙江三花汽车零部件有限公司 | Thermal expansion valve |
-
2005
- 2005-08-08 CN CN 200520013860 patent/CN2814066Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738027B (en) * | 2008-11-25 | 2013-03-06 | 浙江三花股份有限公司 | Two-way heating power expansion valve |
| CN101749900B (en) * | 2008-12-04 | 2013-09-18 | 浙江三花股份有限公司 | Two-way thermal expansion valve |
| CN101988585B (en) * | 2009-07-31 | 2013-03-06 | 浙江三花股份有限公司 | Thermal expansion valve |
| CN105465440A (en) * | 2014-09-01 | 2016-04-06 | 浙江三花汽车零部件有限公司 | Thermal expansion valve |
| CN105465440B (en) * | 2014-09-01 | 2018-07-06 | 浙江三花汽车零部件有限公司 | Heating power expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 Termination date: 20100808 |