CN201314733Y - Self-operated three-way reversing valve - Google Patents
Self-operated three-way reversing valve Download PDFInfo
- Publication number
- CN201314733Y CN201314733Y CNU2008201694486U CN200820169448U CN201314733Y CN 201314733 Y CN201314733 Y CN 201314733Y CN U2008201694486 U CNU2008201694486 U CN U2008201694486U CN 200820169448 U CN200820169448 U CN 200820169448U CN 201314733 Y CN201314733 Y CN 201314733Y
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- piston
- slide block
- valve
- valve body
- self
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- Expired - Lifetime
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- 238000005057 refrigeration Methods 0.000 abstract description 12
- 239000003507 refrigerant Substances 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 206010008469 Chest discomfort Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Multiple-Way Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a self-operated three-way reversing valve, which comprises a valve body, a first piston, a second piston, a sliding frame, a sliding block and a spring, wherein the first piston, the second piston, the sliding frame, the sliding block and the spring are arranged in the valve body; the sliding block is arranged on the valve seat, the sliding frame is fixed with the sliding block, and the sliding frame is connected with the first piston and the second piston to form a piston sliding frame combination which can axially move in the valve body; the spring is arranged between the second piston and the left end cover, and the sliding block is provided with a radial limiting structure in the valve body. Its radial limit structure is: the sliding block comprises a transverse structure and a vertical structure positioned above the transverse structure, and the bottom of the transverse structure is tightly attached to the valve seat; the top surface of the vertical structure of the slide block is provided with a longitudinal groove, and the top surfaces of the two concave-shaped convex parts are tightly attached to the inner wall surface of the valve body. The utility model discloses a structure can improve heat pipe circulation refrigeration efficiency, and is more high-efficient, energy-conserving.
Description
Technical field
The utility model belongs to the fluid control valve technical field, the self-operated three-way reversing valve of particularly a kind of heat pipe compression refrigeration dual-purpose type computer-room air conditioning system special use.
Background technology
Existing different classes of automatic diverter valve has an electromagnetism (or electric power) pilot valve mostly, and the passage that relies on power that pilot valve provides or signal to change valve flows to, and its structure relative complex, consumes that material is many, cost of manufacture is high, and reliability is not very good yet;
As Augusts 20 in 2008 State Intellectual Property Office disclosed be used for refrigerant circulation and with the self-operated three-way valve of type machine room special machine " the patent of invention document (publication number: CN101245864); the document has been introduced and a kind ofly has been used for that refrigerant circulates and with the self-operated three-way valve of type machine room special machine; this triple valve comprises valve body; low-pressure inlet pipe, high-pressure pipe and blast pipe; Be provided with piston component, valve seat and guiding valve in the valve body, body cavity is divided into low-pressure cavity and high pressure chest by axially displaceable piston, is connected with the low pressure capillary between low-pressure cavity and the low-pressure inlet pipe, is connected with the low pressure capillary between high pressure chest and the high-pressure pipe; In low-pressure cavity or/and be provided with spring in the high pressure chest.The piston component drive guiding valve that suction during by spring force and compressor start, pressure at expulsion official post are arranged on valve inner is fitted in the valve base surface slip, thereby realizes that high-pressure pipe is communicated with blast pipe or low-pressure inlet pipe is communicated with blast pipe.This triple valve needs any exterior power, and only the running status according to compressor can realize freely switching of refrigerant kind of refrigeration cycle and Natural Circulation, thereby gives full play to that refrigerant circulates and with the power savings advantages of type machine room special machine uniqueness, improve its operational reliability.
Say so theoretically " can realize freely switching of refrigerant kind of refrigeration cycle and Natural Circulation, improve the reliability of system, and effectively improve the runnability of machine room special machine ", but when practical application, will have following defective:
1, because the guiding valve in this patent does not have the radial displacement limiting structure, is difficult to guarantee the normal commutation of valve.From the structure described in this patent specification literal and the accompanying drawing to its all claim, all not to guiding valve the radial displacement in handoff procedure do qualitative or quantitative restriction, and the commutation power of self-operated three-way reversing valve is the pressure differential from the piston two ends, when this valve by Natural Circulation when kind of refrigeration cycle is switched, guiding valve certainly leads to a radial displacement that makes guiding valve break away from valve seat under the effect of Compressor Discharge Pressure, cause the short circuit of height pressure chamber to leak, directly the foundation of the minimum commutation pressure differential of influence finally causes triple valve normally to switch.
2, the axis of low-pressure inlet pipe and blast pipe increases local resistance not on same straight line, influences the refrigerating efficiency under nature kind of refrigeration cycle (being the cold circulation of the heat control) operating mode, also is unfavorable for energy-conservation.
The utility model content
For overcoming above-mentioned the deficiencies in the prior art, the utility model provides a kind of self-operated three-way reversing valve, and it can realize that on the one hand no additional power switches, and guarantees that simultaneously switching is stable, reliable, and more energy-efficient.
For achieving the above object, the utility model adopts following technical proposals: a kind of self-operated three-way reversing valve, it comprises valve body, described valve body two ends have left end cap and right end cap, piston one in valve body, piston two, balladeur train, slide block, and spring, the valve seat on the described valve body, adapter C, adapter E, adapter D and low pressure capillary, high pressure capillary are formed a cavity volume; Described slide block places on the valve seat, and described balladeur train and slide block are fixed, and described balladeur train and piston one, piston two are connected to form the combination of piston balladeur train, can move axially in valve body; Described spring is located between piston two and the left end cap, and described slide block has radially position limiting structure in valve body.
The radially position limiting structure of described slide block in valve body can be: described slide block comprises transversary and is positioned at the vertical structure of transversary top, make the cross section of slide block form " T " font, wherein, valve seat is close in the bottom of transversary, and constitutes the valve port flat seal with the faying face of valve seat; The end face of the vertical structure of described slide block has longitudinal fluting, the cross section of the vertical structure of slide block is " recessed " font, and the end face of " recessed " font two boss is faces of cylinder of two symmetries, the valve interior wall face is close on the face of cylinder of two symmetries.
Described adapter C is on the same straight line with the axis of taking over E, and with the intersect vertical axis of valve body, and take over D and take over E and be positioned at homonymy.Described balladeur train and slide block fixedly are: described balladeur train is placed in the outside of slide block.
The beneficial effects of the utility model are, adopt radially position limiting structure slide block, guarantee stability and reliability that triple valve switches, realize effective switching of no additional power; C, E take over and be in same axis, reduce local resistance, improve heat pipe circularly cooling efficient, and be more efficient, energy-conservation.
Description of drawings
Fig. 1 is the structure chart of the utility model self-operated three-way reversing valve;
Fig. 2 is the connection layout of the utility model self-operated three-way reversing valve in the embodiment system;
Fig. 3 has finished state position figure after the proper crossover for self-operated three-way reversing valve;
Fig. 4 is a self-operated three-way reversing valve slide block position limiting structure profile.
Among Fig. 1-Fig. 4:
The 1-right end cap, 2-piston one, 3-valve body, 4-balladeur train, 5-slide block, the 6-valve seat, 7-tube connector C, 8-piston two, 9-spring base, the 10-spring, 11-left end cap, 12-low pressure capillary, 13-tube connector E, 14-tube connector D, 15-high pressure capillary, 16-refrigeration compressor, 17-condenser, the 18-expansion valve, 19-magnetic valve, 20-evaporimeter, the transversary of 5-1-slide block, the vertical structure of 5-2-slide block, the longitudinal fluting of 5-3 slide block, 6-1-valve port D passage, 6-2-valve port E passage.
The specific embodiment
As shown in Figure 1, self-operated three-way reversing valve of the present utility model comprises valve body 3, described valve body 3 two ends have left end cap 11 and right end cap 1, piston 1 in valve body 3, piston 28, balladeur train 4, slide block 5, and spring 10, the valve seat 6 on the described valve body 3, adapter C7, adapter E13, adapter D14 and low pressure capillary 12, high pressure capillary 15 constitute a cavity volume after the soldering welding; Described slide block 5 places on the valve seat 6, and described balladeur train 4 is fixing with slide block 5, and described balladeur train 4 is connected to form the combination of piston balladeur train with piston 1, piston 28, can move axially in valve body 3; Described spring 10 is located between piston 28 and the left end cap 11, and valve seat 6 has two valve port passages.Said structure and prior art are similar, therefore are not described in detail.
Characteristics as self-operated three-way reversing valve maximum of the present utility model are that described slide block 5 has radially position limiting structure in valve body 3.Described radially position limiting structure can be: described slide block 5 comprises the vertical structure 5-2 of transversary 5-1 and transversary 5-1 top, make the cross section of slide block 5 form " T " font, wherein, valve seat 6 is close in the bottom of transversary 5-1, and constitutes the valve port flat seal with the faying face of valve seat 6; The end face of the vertical structure 5-2 of described slide block 5 has longitudinal fluting 5-3, the cross section of the vertical structure of slide block 5 is " recessed " font, the end face of " recessed " font two boss is faces of cylinder of two symmetries, and the internal face (referring to Fig. 4) of valve body 3 is close on the face of cylinder of two symmetries.Certainly, only be wherein a kind of embodiment of position limiting structure radially above, in self-operated three-way reversing valve of the present invention, can also adopt radially position limiting structure of mechanical field alternate manner of the prior art.
Owing on the valve seat 6 in the described valve body the radially spacing slide block of band 5 is housed, on the faying face of slide block and valve seat, has constituted the valve port flat seal.It can be the outside that described balladeur train 4 is placed in slide block 5 that described balladeur train 4 is fixed with slide block 5.
Another characteristics of self-operated three-way reversing valve of the present utility model are: described adapter C7 is on the same straight line with the axis of taking over E13, and with the intersect vertical axis of valve body, and take over D14 and take over E13 and be positioned at the same side.
Shown in Figure 2, when refrigeration compressor 16 quit work, the relative position of slide block 5 on valve seat 6 of three-way diverter valve as shown in Figure 1, valve port E passage 6-2 on the valve seat 6 opens, tube connector C7 and tube connector E13 communicate, and valve port D passage 6-1 closes, and air-conditioning system is in the heat-pipe refrigerating recurrent state.
After refrigeration compressor 16 unlatching work; the refrigerant gas of certain pressure enters tube connector D14 by high-pressure exhaust pipe; this moment, slide block 5 was under the effect of gases at high pressure; can produce 6 the trend of lifting off a seat, but the radially position limiting structure of slide block 5 (between valve seat and valve interior wall " gigantic ", referring to Fig. 4); limited the radial displacement of slide block; guarantee that the bottom of the transversary of slide block 5 is close to valve seat 6, and constitute the flat seal of valve ports, be subjected to slide block 5 and stop with valve seat 6.Part gases at high pressure are through high pressure capillary 15, enter the cavity of one 2 in right end cap 1 and piston, produce an enough big pressure differential at piston 1 and piston 28 two ends (also just because of the radially position limiting structure of slide block 5, guaranteed the foundation of minimum movements pressure differential), when this pressure differential surpasses the minimum positive action pressure differential of valve, just can overcome the spring force of spring 10, promote the combination of piston balladeur train and drive slide block 5 to be moved to the left, the valve port D passage 6-1 that is connected with adapter D14 on the valve seat 6 opens gradually, 6-1 is thoroughly opened up to valve port D passage, reach the purpose of proper crossover, taking over D14 this moment is communicated with adapter C7, valve port E passage 6-2 closes, and air-conditioning system enters compression refrigeration circulation, the state position of valve (referring to Fig. 3).
After refrigeration compressor 16 quits work once more, the pressure at piston two ends tends to be balanced gradually, the piston balladeur train is combined under the effect of spring 10 elastic force, driving slide block 5 moves right, the valve port D passage 6-1 that takes over the D14 top closes gradually, the valve port E passage 6-2 that takes over the E13 top opens gradually, 6-2 thoroughly opens up to valve port E passage, thereby reach reverse commutation (resetting) purpose (this moment take over E13 with the adapter C7 be communicated with, air-conditioning system reenters the heat-pipe refrigerating circulation, and the state position of valve is referring to Fig. 1).So move in circles, utilize the pressure differential variation of opening, shutting down generation of refrigeration compressor self in the air-conditioning system, realize the automatic reverse of triple valve.
Claims (4)
1, a kind of self-operated three-way reversing valve, it comprises valve body (3), described valve body (3) two ends have left end cap (11) and right end cap (1), piston one (2) in valve body (3), piston two (8), balladeur train (4), slide block (5), and spring (10), the valve seat (6) on the described valve body (3), adapter C (7), adapter E (13), adapter D (14) and low pressure capillary (12), high pressure capillary (15) are formed a cavity volume; Described slide block (5) places on the valve seat (6), and described balladeur train (4) is fixing with slide block (5), and described balladeur train (4) is connected to form the combination of piston balladeur train with piston one (2), piston two (8), can move axially in valve body (3); Described spring (10) is located between piston two (8) and the left end cap (11), it is characterized in that described slide block (5) has radially position limiting structure in valve body (3).
2, self-operated three-way reversing valve according to claim 1, it is characterized in that the radially position limiting structure of described slide block (5) in valve body (3) is: described slide block (5) comprises the vertical structure (5-2) of transversary (5-1) and transversary (5-1) top, make the cross section of slide block (5) form " T " font, wherein, valve seat (6) is close in the bottom of transversary (5-1), and constitutes the valve port flat seal with the faying face of valve seat (6); The end face of the vertical structure (5-2) of described slide block (5) has longitudinal fluting (5-3), make the cross section of the vertical structure of slide block (5) be " recessed " font, the end face of " recessed " font two boss is faces of cylinder of two symmetries, and the internal face of valve body (3) is close on the face of cylinder of two symmetries.
3, self-operated three-way reversing valve according to claim 1 and 2 is characterized in that described adapter C (7) and the axis of taking over E (13) are on the same straight line, and with the intersect vertical axis of valve body, and take over D (14) and take over E (13) and be positioned at the same side.
4, self-operated three-way reversing valve according to claim 1, it is characterized in that described balladeur train (4) and slide block (5) fixedly are: described balladeur train (4) is placed in the outside of slide block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201694486U CN201314733Y (en) | 2008-12-11 | 2008-12-11 | Self-operated three-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201694486U CN201314733Y (en) | 2008-12-11 | 2008-12-11 | Self-operated three-way reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201314733Y true CN201314733Y (en) | 2009-09-23 |
Family
ID=41126530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201694486U Expired - Lifetime CN201314733Y (en) | 2008-12-11 | 2008-12-11 | Self-operated three-way reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201314733Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975419A (en) * | 2010-11-26 | 2011-02-16 | 哈尔滨工业大学 | Heating system using self-operated three-way water-mixing temperature regulating valve |
| CN106286896A (en) * | 2015-05-26 | 2017-01-04 | 浙江盾安禾田金属有限公司 | Self-operated type switching valve |
| CN106352111A (en) * | 2015-07-15 | 2017-01-25 | 浙江盾安禾田金属有限公司 | Electromagnetic pilot type three-way valve and air conditioning system |
| CN115950121A (en) * | 2022-12-02 | 2023-04-11 | 珠海格力电器股份有限公司 | Capillary tube structure and air conditioner |
-
2008
- 2008-12-11 CN CNU2008201694486U patent/CN201314733Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975419A (en) * | 2010-11-26 | 2011-02-16 | 哈尔滨工业大学 | Heating system using self-operated three-way water-mixing temperature regulating valve |
| CN101975419B (en) * | 2010-11-26 | 2012-08-15 | 哈尔滨工业大学 | Heating system using self-operated three-way water-mixing temperature regulating valve |
| CN106286896A (en) * | 2015-05-26 | 2017-01-04 | 浙江盾安禾田金属有限公司 | Self-operated type switching valve |
| CN106286896B (en) * | 2015-05-26 | 2019-06-11 | 浙江盾安禾田金属有限公司 | Self-operated type switching valve |
| CN106352111A (en) * | 2015-07-15 | 2017-01-25 | 浙江盾安禾田金属有限公司 | Electromagnetic pilot type three-way valve and air conditioning system |
| CN106352111B (en) * | 2015-07-15 | 2019-06-11 | 浙江盾安禾田金属有限公司 | A kind of electromagnetic pilot-operated triple valve and air-conditioning system |
| CN115950121A (en) * | 2022-12-02 | 2023-04-11 | 珠海格力电器股份有限公司 | Capillary tube structure and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090923 |
|
| CX01 | Expiry of patent term |