CN201764009U - Self-operated three-way valve - Google Patents
Self-operated three-way valve Download PDFInfo
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- CN201764009U CN201764009U CN2010201330735U CN201020133073U CN201764009U CN 201764009 U CN201764009 U CN 201764009U CN 2010201330735 U CN2010201330735 U CN 2010201330735U CN 201020133073 U CN201020133073 U CN 201020133073U CN 201764009 U CN201764009 U CN 201764009U
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Abstract
The utility model relates to a self-operated three-way valve which comprises a valve body, a valve core, a low pressure inlet pipe, a high pressure inlet pipe, an exhaust pipe, a low pressure capillary and a high pressure capillary. The valve core moving in an axial direction is arranged in the valve body; the low pressure inlet pipe, the high pressure inlet pipe and the exhaust pipe are arranged on the valve body vertically, the low pressure inlet pipe is arranged opposite to the exhaust pipe, and the high pressure inlet pipe and the low pressure inlet pipe are arranged at the same side of the valve body; a separator is fixedly arranged in a cavity at one end of the valve body and an elastic element is arranged between the separator and the valve core; a high pressure cavity is formed between one inner end surface of the valve core and the valve body, and a low pressure cavity is formed between the other inner end surface of the separator and the valve body; the low pressure capillary is connected with the low pressure cavity and the low pressure inlet pipe and the high pressure capillary is connected with the high pressure cavity and the high pressure inlet pipe; the valve core is provided with a vertically penetrated throughhole. The utility model realizes the effective switch of the three-way valve without additional power by pressure difference change generated by starting and stopping the compressor and the elasticity of the elastic element, thereby improving the energy-saving property and reliability of the refrigerating unit.
Description
Technical field
The utility model relates to a kind of three-way valve that is used for heat pump, relates in particular to a kind of additional power that do not need and can carry out the self-operated three-way valve that pipeline switches.
Background technique
In the refrigerating heat pump field, the replacement between the different operating modes often needs compressor outlet flow of refrigerant direction is realized changing.The notable feature of compressor outlet refrigeration agent is a High Temperature High Pressure, when adopting common electromagnetism or electric valve (for example: electromagnetism on-off valve, electronic on-off valve, electromagnetism/electric T-shaped valve etc.), coil can be under the higher operating temperature always, cause shorten the working life of coil and control valve, the reliability of cooling machine set descends fast with the increase of working time.Also use the control valve of external air source to solve the problems referred to above in the prior art, but its structure relative complex, consume that material is many, fabricating cost is high.That CN101245864A discloses is a kind of " be used for refrigerant circulation and with the self-operated three-way valve of type machine room special machine ", though the self-operated three-way valve that this invention provides, do not need any external impetus can realize the refrigeration cycle of coolant natural circulation type machine room special machine and freely switching of natural circulation, improved the reliability of machine room special machine, give full play to the unique advantage of the machine room special machine of natural circulation and the type of using machine room special machine, but in the implementation process of reality, three-way valve resistance during natural circulation is bigger, and spool overturns easily when compressor start, the normal use of air-conditioning unit when these all will influence the refrigerant natural circulation.
Summary of the invention
At the defective of above prior art, the utility model proposes a kind of self-operated three-way valve, rely on the pressure reduction of the compressor suction and exhaust ports in system's running to change the automatic switchover that realizes valve, the three-way valve resistance is big when having overcome natural circulation mode; The problem that spool overturns easily during compressor start has really realized the reliable switching of no additional power.
The technical solution of the utility model is as follows:
A kind of self-operated three-way valve comprises valve body, spool, low-pressure inlet pipe, high-pressure pipe, outlet pipe, low pressure capillary tube and high pressure capillary, and setting can axially movable spool in the valve body; Low-pressure inlet pipe, high-pressure pipe and outlet pipe are vertically set on the valve body, and low-pressure inlet pipe and outlet pipe are oppositely arranged, and high-pressure pipe and low-pressure inlet pipe are in valve body the same side and be parallel to each other; Valve body one end cavity internal fixation is provided with block body, and block body is fixing irremovable, is provided with elastic element between block body and the spool; Form hyperbaric chamber between the interior edge face of spool and valve body, form low-pressure cavity between another interior edge face of block body and valve body; The low pressure capillary tube connects low-pressure cavity and low-pressure inlet pipe, and high pressure capillary connects hyperbaric chamber and high-pressure pipe; Spool is provided with the through hole of vertical perforation.Vertically be and the axial vertical direction of valve body.
When described elastic element was in maximum extension position, through hole was communicated with low-pressure inlet pipe with outlet pipe; When elastic element was in the minimal compression position, through hole was communicated with high-pressure pipe with outlet pipe.
Described through hole is made of with the recessed platform that is arranged on outlet pipe one side the hole that is arranged on by high-pressure pipe one side, and the hole is communicated with recessed platform.
The internal diameter in described hole is identical with the internal diameter of low-pressure inlet pipe.
Described block body is arranged in the retaining tube for retaining tube, elastic element.The retaining tube is the sleeve of a direction sealing, and the direction of sealing is the one side by the valve body end face.
Valve seat one end fixedly is butted on valve body hyperbaric chamber interior edge face, valve seat length less than the hyperbaric chamber end face to the axial line distance between the low-pressure inlet pipe.
Also be provided with valve seat in the described valve body hyperbaric chamber, valve seat is fixed on the valve body, and spool reciprocatingly slides on valve seat.Valve seat has guaranteed that spool can not rotate, and can only translation.In use, can there be the situation of unbalance stress in spool, and this moment is because its column construction, easily in valve body, rotate, influence the unimpeded of refrigerant flow, increase local resistance, even may cut off refrigerant flow, and after valve seat was set, because valve seat is fixed on the valve body, " card " lived spool, spool also no longer is a round column structure completely, just can only translation in body cavity, and can not rotate, the problems referred to above solved.
Described spool is the politef spool.
The beneficial effects of the utility model:
The utility model provides self-operated three-way valve; adopt simple elastic element, valve core structure and reasonably valve port setting; utilize the start of refrigeration compressor self in the air-conditioning unit, the pressure reduction variation of shutting down the compressor suction and discharge that produce and the elastic force of elastic element; realized that three-way valve does not have effective switching of additional power; do not need external force can realize having promoted the energy saving and the reliability of this unit with the refrigerant refrigeration cycle pattern of heat tube function cooling machine set and freely switching of natural circulation mode.And three-way valve of the present utility model is simple in structure, easily processing.
Description of drawings
Fig. 1 is the cross-sectional view (elastic element is in maximum extension position) of the utility model embodiment's self-operated three-way valve;
Fig. 2 is the cross-sectional view (elastic element is in the minimal compression position) of the utility model embodiment's self-operated three-way valve;
Fig. 3 is that the A-A of Fig. 1 is to sectional structure chart;
Fig. 4 is the left view of Fig. 1;
Fig. 5 is the structural representation of spool in the embodiment of the invention.
Fig. 6 is the connection diagram of self-operated three-way valve in heat pipe and steam compressed compound-refrigerating air-conditioning unit of the embodiment of the invention.
Primary component in the accompanying drawing:
1, valve body; 2, spool; 3, groove; 4, spring; 5, spring spool; 6, low-pressure cavity; 71, left end cap; 72, right end cap; 8, hyperbaric chamber; 9, low pressure capillary tube; 10, high pressure capillary; 11, low-pressure inlet pipe; 12, high-pressure pipe; 13, outlet pipe; 14, valve seat; 15, gas tube; 16, liquid connecting tube; 17, condenser; 18, vaporizer; 19, throttling arrangement; 20, solenoid valve; 21, hole; 22, recessed platform; 100, self-operated three-way valve; 101, compressor.
Embodiment
Describe most preferred embodiment of the present invention in detail below in conjunction with accompanying drawing.
Self-operated three-way valve 100 of the present invention comprises valve body 1, spool 2, low-pressure inlet pipe 11, high-pressure pipe 12, outlet pipe 13, low pressure capillary tube 9 and high pressure capillary 10, and valve body 1 axial two ends are respectively arranged with left end cap 71 and right end cap 72.Its left view can be referring to Fig. 4.
Low-pressure inlet pipe 11, high-pressure pipe 12, outlet pipe 13 are vertically set on the valve body 1, and promptly the axis of the shaft axis of three pipes and valve body is perpendicular; Low-pressure inlet pipe 11 is oppositely arranged with outlet pipe 13, and promptly the shaft axis of two pipes overlaps; Low-pressure inlet pipe 11 is arranged on the same side of valve body 1 with high-pressure pipe 12, and is parallel to each other, i.e. the axis parallel of two pipes.
Retaining tube 5 forms low-pressure cavity 6 with the left interior edge face of valve body 1, and spool 2 forms hyperbaric chamber 8 with valve body 1 right interior edge face; Low pressure capillary tube 9 passes left end cap 71 low-pressure cavity 6 is communicated with low-pressure inlet pipe 11, and high pressure capillary 10 passes right end cap 72 hyperbaric chamber 8 is communicated with high-pressure pipe 12.
Spool 2 is provided with the through hole of vertical perforation, and when spring 4 was in maximum extension position, through hole was communicated with low-pressure inlet pipe 11 with outlet pipe 13, see Fig. 1; When spring 4 was in the minimal compression position, through hole was communicated with high-pressure pipe 12 with outlet pipe 13, see Fig. 2.The shape of through hole can change, it can be cylindrical, square column type etc., but in order to make the present invention reach best effect, present embodiment adopts following design: being about to via design is part one and part two, part one is for being arranged on the hole 21 of high-pressure pipe 12 1 sides, and its internal diameter is identical with the internal diameter of low-pressure inlet pipe 11; Part two is for being arranged on the recessed platform 22 of outlet pipe 13 1 sides, the axis in the vertical and hole 21 of recessed platform 22, and recessed platform 22 is communicated with hole 21.Referring to Fig. 5.
Also be provided with valve seat 14 at valve body 1 hyperbaric chamber 8 one ends by low-pressure inlet pipe 11 1 sides, valve seat 14 is fixed on the valve body 1, and spool 2 reciprocatingly slides on valve seat 14.One end of valve seat 14 fixedly is butted on valve body 1 hyperbaric chamber 8 interior edge faces, and the length of valve seat 14 is less than the axial line distance of hyperbaric chamber 8 end faces between the low-pressure inlet pipe 11.The effect of valve seat 14 is to guarantee spool 2 axially translation in valve body 1, and can not rotate.
For make spool 2 can be in valve body 1 axially reciprocating, and on valve seat 14, slide, spool 2 should adopt the little elastic material of friction factor to make, as politef.
In order to make self-operated three-way valve 100 of the present invention reach best using effect, this example provides the best manufacturing dimension of self-operated three-way valve 22.Wherein the distance between high-pressure pipe 12 and low-pressure inlet pipe 11 shaft axiss is greater than the inside radius sum of the two; Radius, the length that the height of recessed platform 22 is not more than spool 2 is not less than the distance and low-pressure inlet pipe 11 inside radiuss and high-pressure pipe inside radius three sum between low-pressure inlet pipe 11 and the high-pressure pipe 12; Valve seat 14 is closed fully when spring 4 is in maximum extension position with spool 2, separates when spool 2 moves; The radius, length that the height of valve seat 14 is not more than spool 2 is greater than the distance between the axis of the axis of low-pressure inlet pipe 11 and high-pressure pipe 12 and deduct the length of low-pressure admission external diameter of pipe less than the right valve gap 72 and the axial line distance of low-pressure inlet pipe 11.
The working principle of self-operated three-way valve 100 of the present invention is: when compressor 101 is not opened, pressure is suitable in low-pressure inlet pipe 11 and the high-pressure pipe 12, then pressure reduction is less between low-pressure cavity 6 and the hyperbaric chamber 8, spring 4 is in extended configuration, spool 2 is expelled in the high-pressure pipe 12 to the right and with the refrigeration agent in the hyperbaric chamber 8 under the impetus of spring 4, when spring 4 is in maximum extension position, low-pressure inlet pipe 11 is by hole 21 and recessed platform 22 and outlet pipe 13 conductings, refrigerant flows out through outlet pipe 13 through spool 2 by low-pressure inlet pipe 11, referring to Fig. 1.When compressor 101 is opened, rise rapidly with the pressure in the high-pressure pipe 12 that compressor 101 outlet pipes are communicated with, and descend rapidly with pressure in the low-pressure inlet pipe 11 that compressor 101 sucking pipes are communicated with, cause the pressure reduction between valve body 1 mesohigh chamber 8 and the low-pressure cavity 6 to be set up rapidly thus, promote spool 2 and overcome the thrust of spring 4 to left movement, stopped by block body 5 until spool 2, this moment, spring 4 was in the minimal compression position, high-pressure pipe 12 is by hole 21 and recessed platform 22 and outlet pipe 13 conductings, and low-pressure inlet pipe 11 is cut off, referring to Fig. 2.
Fig. 6 has shown the annexation when self-operated three-way valve 100 of the present invention is applied in heat pipe and the steam compressed compound-refrigerating air-conditioning unit.The outlet pipe 13 of self-operated three-way valve 100 of the present invention links to each other with the condenser of air-conditioning unit 17 inlets, and high-pressure pipe 12 links to each other with the outlet pipe of compressor 101, and low-pressure inlet pipe 11 links to each other with gas tube 15.Under natural circulation mode, compressor 101 does not start, low-pressure inlet pipe 11 and outlet pipe 13 conductings, through hole 21 and recessed platform 22 through the refrigerant vapor of gas tube 15 is flowed through spool 2 by low-pressure inlet pipe 11 comes out after vaporizer 18 heat absorptions, flow out to condenser 17 heat releases through outlet pipe 13, flow back to vaporizer 18 by solenoid valve 20 through liquid connecting tube 16 then, realize the natural circulation mode of heat tube function.Under the refrigerant refrigeration cycle pattern, compressor 101 starts, discharge pressurized gas, pressurized gas enter high-pressure pipe 12 and the connection by high pressure capillary 10 reaches in the spool 2 right side hyperbaric chambers 8, and then make the pressure on spool 2 right sides greater than left side pressure, promote spool 2 pressure spring 4 that moves to left, be in the minimal compression position up to spring 4, high-pressure pipe 12 and outlet pipe 13 conductings, low-pressure inlet pipe 11 is ended, then come out after vaporizer 18 heat absorption through hole 21 and recessed platform 22 through spool 2 is flowed through in the compressed machine of the refrigerant of gas tube 15 101 compression backs by high-pressure pipe 12 flows out to condenser 17 heat releases through outlet pipe 13, the switching of realization refrigerant pipeline.Refrigerant is got back to vaporizer 18 by throttle mechanism 19 through liquid connecting tube 16 after condenser 17 heat releases, realize the refrigerant refrigeration cycle pattern of vapor compression refrigeration.
Claims (8)
1. a self-operated three-way valve comprises valve body, spool, low-pressure inlet pipe, high-pressure pipe, outlet pipe, low pressure capillary tube and high pressure capillary, it is characterized in that: setting can axially movable spool in the valve body; Low-pressure inlet pipe, high-pressure pipe and outlet pipe are vertically set on the valve body, and low-pressure inlet pipe and outlet pipe are oppositely arranged, and high-pressure pipe and low-pressure inlet pipe are in valve body the same side and be parallel to each other; Valve body one end cavity internal fixation is provided with block body, is provided with elastic element between block body and the spool; Form hyperbaric chamber between the interior edge face of spool and valve body, form low-pressure cavity between another interior edge face of block body and valve body; The low pressure capillary tube connects low-pressure cavity and low-pressure inlet pipe, and high pressure capillary connects hyperbaric chamber and high-pressure pipe; Spool is provided with the through hole of vertical perforation.
2. self-operated three-way valve according to claim 1 is characterized in that: when described elastic element was in maximum extension position, through hole was communicated with low-pressure inlet pipe with outlet pipe; When elastic element was in the minimal compression position, through hole was communicated with high-pressure pipe with outlet pipe.
3. self-operated three-way valve according to claim 2 is characterized in that: described through hole is made of with the recessed platform that is arranged on outlet pipe one side the hole that is arranged on by high-pressure pipe one side, and the hole is communicated with recessed platform.
4. self-operated three-way valve according to claim 3 is characterized in that: the internal diameter in described hole is identical with the internal diameter of low-pressure inlet pipe.
5. according to each described self-operated three-way valve of claim 1-4, it is characterized in that: also be fixed with valve seat in the described valve body hyperbaric chamber, spool reciprocatingly slides on valve seat.
6. self-operated three-way valve according to claim 5 is characterized in that: described valve seat one end fixedly is butted on valve body hyperbaric chamber interior edge face, valve seat length less than the hyperbaric chamber end face to the axial line distance between the low-pressure inlet pipe.
7. self-operated three-way valve according to claim 1 is characterized in that: described block body is arranged in the retaining tube for retaining tube, elastic element.
8. self-operated three-way valve according to claim 6 is characterized in that: described spool is the politef spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201330735U CN201764009U (en) | 2010-03-17 | 2010-03-17 | Self-operated three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201330735U CN201764009U (en) | 2010-03-17 | 2010-03-17 | Self-operated three-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764009U true CN201764009U (en) | 2011-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201330735U Expired - Fee Related CN201764009U (en) | 2010-03-17 | 2010-03-17 | Self-operated three-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764009U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769393A (en) * | 2010-03-17 | 2010-07-07 | 北京水木能环节能技术有限公司 | Self-operated type tee valve |
| CN106032846A (en) * | 2015-03-17 | 2016-10-19 | 浙江盾安禾田金属有限公司 | Self-operated three-way valve and air-conditioning system thereof |
| CN111912134A (en) * | 2019-05-09 | 2020-11-10 | 珠海华宇金属有限公司 | Air conditioner |
-
2010
- 2010-03-17 CN CN2010201330735U patent/CN201764009U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769393A (en) * | 2010-03-17 | 2010-07-07 | 北京水木能环节能技术有限公司 | Self-operated type tee valve |
| CN106032846A (en) * | 2015-03-17 | 2016-10-19 | 浙江盾安禾田金属有限公司 | Self-operated three-way valve and air-conditioning system thereof |
| CN106032846B (en) * | 2015-03-17 | 2019-12-24 | 浙江盾安禾田金属有限公司 | Self-operated three-way valve and air conditioning system thereof |
| CN111912134A (en) * | 2019-05-09 | 2020-11-10 | 珠海华宇金属有限公司 | Air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Thuee Energy-Saving Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Jiang Hongchen Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130317 |