CN1928412A - Bellows integrated bidirectional thermal expansion valve - Google Patents
Bellows integrated bidirectional thermal expansion valve Download PDFInfo
- Publication number
- CN1928412A CN1928412A CN 200510060663 CN200510060663A CN1928412A CN 1928412 A CN1928412 A CN 1928412A CN 200510060663 CN200510060663 CN 200510060663 CN 200510060663 A CN200510060663 A CN 200510060663A CN 1928412 A CN1928412 A CN 1928412A
- Authority
- CN
- China
- Prior art keywords
- bellows
- valve body
- temperature sensing
- expansion valve
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002457 bidirectional effect Effects 0.000 title abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000002775 capsule Substances 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000027455 binding Effects 0.000 description 1
- 238000009739 binding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Landscapes
- Temperature-Responsive Valves (AREA)
Abstract
A bidirectional thermal expansion valve is composed of valve body with bellows at its top end, transfer rod in the valve body, and air return channels with air inlet and outlet pipes at both sides. The diaphragm capsule and the valve body are designed in an integrated manner, so that the sealing problem of the diaphragm capsule is fundamentally solved. The temperature sensing valve has the advantages of reasonable design, simple structure, good sealing performance, capability of ensuring direct temperature sensing of the diaphragm capsule by the air return channels with the air return pipes on the left side and the right side arranged on the valve body, no need of an outer temperature sensing pipe and a connecting capillary pipe, reliable temperature sensing and small deviation.
Description
Technical field
The present invention relates to a kind of two-way heating power expansion valve, belong to the throttling arrangement technical field of vapor compression heat pump systems.
Background technique
The heating power expansion valve that is used for vapor compression heat pump systems now mostly is split-type structural, and bellows and valve body are processed respectively, at last assembling.Because defective makes the heating power expansion valve sealability relatively poor on the structural design, can only one-way only operation.And be outer temperature-sensitive, promptly use external temperature-sensitive pipe temperature-sensitive, the temperature-sensitive pipe is connected with bellows by connecting tube, and the temperature-sensitive deviation is big.For solving two-way working, adopt 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 invention is to provide a kind of reasonable in designly, simple in structure, temperature-sensitive is reliable, regulates highly sensitive bellows integral two-way thermodynamic expansion valve.
Major character of the present invention is the bellows integral structure.The right and left of valve body has into muffler and the return gas channel that goes out the muffler composition, transmits bar and partly places in the return gas channel.The upper end of valve body is a bellows, and bellows is become one by twice welding and valve body.
The present invention is reasonable in design, and is simple in structure, and bellows and valve body integral type design, and fundamentally solved the sealing of valve body.Both sides are provided with into muffler and the return gas channel that goes out muffler, 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 the direct temperature-sensitive of bellows, need not outer temperature-sensitive pipe and connection capillary tube, temperature-sensitive is reliable, and deviation is little.Bellows utilizes our company's steel ball to seal patented technology after filling temperature sensing agent, guarantees that temperature sensing agent is difficult for revealing.The present invention 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, the cooling and heating type central air-conditioner that promptly can freeze summer, can heat winter, room air conditioner etc.
Description of drawings
Accompanying drawing is an overall structure sectional view of the present invention.
Embodiment
The present invention is the bellows integral structure.The right and left is taken back the valve body 6 of tracheae 7 and steam outlet pipe 8, is connected by weld seam 5 with bellows lower end surface 4 earlier, insert bellows accessories such as reed, diaphragm after, pass through weld seam 3 bindings with bellows upper end cap 2 again.At last, direct behind the filled temperature sensing agent of bellows with sealing steel ball 1 solder up.
During work, temperature sensing medium in the bellows by transmitting bar 10 transmission of heat and the refrigeration agent return-air heat transfer by convection of the return gas channel 9 of flowing through, experience suction temperature, again by transmitting the make a mistake aperture of modulating valve of bar 10 and valve, automatically regulate refrigerant flow, finally reach the purpose of two-way and throttling.
Claims (3)
1, bellows integral structure, valve body 6 is connected with bellows lower end cap 4, is connected with bellows upper end cap 2 after inserting the bellows accessory again.
2, by the described two-way heating power expansion valve of claim 1, it is characterized by the bellows integral structure.Bellows is assembling (the bellows upper end cap is connected at 3 places with lower end cap) earlier, is connected (bellows is connected at 5 places with valve body) again with valve body, becomes non-removable integral body, also can be considered integral structure.
3, by claim 1,2, link the riveted joint that comprises except that welding, adhesive is bonding etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510060663 CN1928412A (en) | 2005-09-08 | 2005-09-08 | Bellows integrated bidirectional thermal expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510060663 CN1928412A (en) | 2005-09-08 | 2005-09-08 | Bellows integrated bidirectional thermal expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1928412A true CN1928412A (en) | 2007-03-14 |
Family
ID=37858487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510060663 Pending CN1928412A (en) | 2005-09-08 | 2005-09-08 | Bellows integrated bidirectional thermal expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1928412A (en) |
-
2005
- 2005-09-08 CN CN 200510060663 patent/CN1928412A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |