CN102242817B - Refrigerant natural circulation combined type bypass throttle valve for special machine of machine room - Google Patents
Refrigerant natural circulation combined type bypass throttle valve for special machine of machine room Download PDFInfo
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- CN102242817B CN102242817B CN 201110171791 CN201110171791A CN102242817B CN 102242817 B CN102242817 B CN 102242817B CN 201110171791 CN201110171791 CN 201110171791 CN 201110171791 A CN201110171791 A CN 201110171791A CN 102242817 B CN102242817 B CN 102242817B
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- condenser
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Abstract
冷媒自然循环并用型机房专用机用旁通节流阀，该旁通节流阀包括阀体、冷凝器接管、蒸发器接管、排气毛细管和节流装置；阀体内设有阀芯和阀座，阀芯在阀体内可沿轴向移动，并将阀体内腔分为高压腔和低压腔。低压腔内设有弹簧，排气毛细管设置在高压腔侧，节流装置设置在冷凝器接管和蒸发器接管间。旁通节流阀通过弹簧弹力和压缩机启动时的吸、排气压差使阀芯在阀体内移动，从而实现冷媒自冷凝器接管至蒸发器接管的旁通或节流。本发明无需任何外力仅根据压缩机的启动状态实现热管模式和制冷模式的自由转换，从而充分发挥冷媒自然循环并用型机房专用机独特的节能优势，提高其运行可靠性。
The bypass throttle valve for the machine room with natural circulation of refrigerant, the bypass throttle valve includes a valve body, a condenser connection pipe, an evaporator connection pipe, an exhaust capillary tube and a throttling device; the valve body is equipped with a valve core and a valve seat , the valve core can move axially in the valve body, and divide the valve body cavity into a high-pressure chamber and a low-pressure chamber. A spring is arranged in the low-pressure chamber, the exhaust capillary is arranged on the side of the high-pressure chamber, and the throttling device is arranged between the connecting pipe of the condenser and the connecting pipe of the evaporator. The bypass throttle valve moves the spool in the valve body through the spring force and the suction and discharge pressure difference when the compressor is started, so as to realize the bypass or throttling of the refrigerant from the condenser to the evaporator. The invention realizes the free switching between the heat pipe mode and the cooling mode only according to the start-up state of the compressor without any external force, thereby giving full play to the unique energy-saving advantages of the special machine room special machine with natural circulation of refrigerant and improving its operation reliability.
Description
Technical field
The present invention relates to a kind of coolant natural circulation type machine room special machine bypass throttle valve, belong to fluid machinery autocontrol valve spare, be specially adapted to the coolant natural circulation type machine room special machine, take over bypass or the throttling of taking over to vaporizer by the self cooling condenser of refrigerant, realize freely changing of heat pipe pattern and refrigeration mode.
Background technique
The coolant natural circulation type machine room special machine has refrigeration mode and heat pipe pattern, adopt at present usually at evaporator outlet and compressor outlet and condenser inlet the switching that self-operated three-way valve is realized coolant natural circulation type machine room special machine refrigeration mode and heat pipe pattern is set, adopt throttle mechanism in parallel and solenoid valve to realize that the self cooling condenser of refrigerant flows out the switching between rear two kinds of patterns between evaporator inlet and condensator outlet.But solenoid valve is limited working life, and after surpassing certain keying number of times, solenoid valve will lose efficacy, and cause the machine room special machine fault; Solenoid valve needs electric power as power, and is charged all the time during unlatching, in vain consume electric power.All can to a certain degree reduce energy-saving effect and the reliability of unit when to sum up, solenoid valve is used in the coolant natural circulation type machine room special machine.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the present invention proposes a kind of coolant natural circulation type machine room special machine bypass throttle valve, to realize that the self cooling condenser of refrigerant flows out freely switching of rear refrigeration cycle and natural circulation, the reliability of raising system, and the ride quality of Effective Raise machine room special machine.
The objective of the invention is to realize by the following technical solutions:
A kind of coolant natural circulation type machine room special machine bypass throttle valve, it is characterized in that: this bypass throttle valve comprises valve body, and condenser is taken over, and vaporizer is taken over, exhaust capillary tube and throttling arrangement; Be provided with spool and valve seat in the described valve body, spool can move in valve body vertically, the valve body two ends also are provided with the first end cap and the second end cap, and the cavity between the first end cap and spool one end is hyperbaric chamber, and the cavity between the second end cap and the spool the other end is low-pressure cavity; Be provided with spring and valve seat in the described low-pressure cavity, spring one end is connected with valve seat, and the other end is connected with spool; Described exhaust capillary tube is connected with hyperbaric chamber; One end of described throttling arrangement is taken over condenser and is connected, and the other end is taken over vaporizer and is connected.
In technique scheme of the present invention, described throttling arrangement adopts capillary tube, heating power expansion valve or electric expansion valve.
In technique scheme of the present invention, described spool is made by nonrigid material.
Technological scheme of the present invention has the following advantages and technical characterstic: the invention provides a kind of coolant natural circulation type machine room special machine bypass throttle valve, suction during by spring force and compressor start, exhaust pressure official post spool is mobile in valve body, thereby the self cooling condenser of realization refrigerant is taken over bypass or the throttling of taking over to vaporizer, need not any external force and only realize freely changing of heat pipe pattern and refrigeration mode according to the starting state of compressor, thereby give full play to the power savings advantages of refrigerant circulation blending machine room special machine uniqueness, improve its operational reliability, ensured energy saving and the reliability of coolant natural circulation type machine room special machine.
Description of drawings
Fig. 1 is the structural representation (throttling arrangement employing capillary tube) of bypass throttle valve when the heat pipe pattern.
Fig. 2 is the structural representation (throttling arrangement employing capillary tube) of bypass throttle valve when refrigeration mode.
Fig. 3 is the connection diagram of bypass throttle valve provided by the invention in the coolant natural circulation type machine room special machine.
Fig. 4 is the structural representation (throttling arrangement employing heating power expansion valve) of bypass throttle valve when the heat pipe pattern.
Among Fig. 1～Fig. 4: the 1-valve body; The 2-spool; 3-the first end cap; 4-the second end cap; 5-exhaust capillary tube; The 6-valve seat; The 7-spring; The 8-vaporizer is taken over; The 9-condenser is taken over; The 10-throttling arrangement; The 11-hyperbaric chamber; The 12-low-pressure cavity; The 13-vaporizer; The 14-compressor; The 15-self-operated three-way valve; The 16-condenser, 17-heating power expansion valve, 18-temperature-sensitive bag.
Embodiment
Below in conjunction with drawings and Examples a kind of coolant natural circulation type machine room special machine bypass throttle valve disclosed by the invention is described.
As illustrated in fig. 1 and 2, coolant natural circulation type machine room special machine bypass throttle valve provided by the invention, this bypass throttle valve comprise valve body 1, condenser adapter 9, vaporizer adapter 8, exhaust capillary tube 5 and throttling arrangement 10; Be provided with spool 2 and valve seat 6 in the described valve body 1, spool 2 is mobile vertically in valve body 1; It is that cavity between hyperbaric chamber 11, the second end caps and spool 2 the other ends is low-pressure cavity 12 that valve body 1 two ends are provided with cavity between the first end cap 3 and the second end cap 4, the first end caps and spool 2 one ends; Be provided with spring 7 and valve seat in the described low-pressure cavity 12, spring 7 one ends are connected with valve seat 6, and the other end is connected with spool 2; Described exhaust capillary tube 5 is connected with hyperbaric chamber 11; One end of described throttling arrangement 10 is taken over 9 with condenser and is connected, and the other end is taken over 8 with vaporizer and is connected.Described throttling arrangement can adopt capillary tube, heating power expansion valve or electric expansion valve.Described spool is made by nonrigid material, such as teflon etc.
Embodiment one
Structure characteristic and the working state of bypass throttle valve when Fig. 1 and Fig. 2 are throttling arrangement employing throttle capillary tube, condenser adapter 9 is connected with condenser 16 outlets of coolant natural circulation type machine room special machine, vaporizer is taken over 8 and is connected with vaporizer 13 entrances of coolant natural circulation type machine room special machine, and exhaust capillary tube 5 is connected with compressor 14 outlet pipes.
When compressor 14 is shut down; spool 2 is under the effect of spring 7; move to hyperbaric chamber 11 directions; making condenser adapter 9 and vaporizer take over 8 is communicated with; refrigerant from evaporator drier 13 flows out from condenser 16 through self-operated three-way valve 15; and take over 9 through the condenser of bypass throttle valve and take over 8 from low-pressure cavity 12 from vaporizer and flow back to vaporizer 13, machine room special machine enters heat pipe pattern (Fig. 1, shown in Figure 3).
When compressor 14 starts, refrigerant vapor in the compressor 14 suction vaporizers 13, the high pressure refrigerant vapor enters in the hyperbaric chamber 11 by exhaust capillary tube 5 simultaneously, inhale at compressor, under the poor effect of exhaust pressure, overcome compressive tension and the frictional force of spring 7, promoting spool 2 moves to low-pressure cavity 12 directions, spool 2 is closed condenser and is taken over 9, making condenser adapter 9 and vaporizer take over 8 only is communicated with by throttling arrangement 10, the high pressure refrigerant vapor is after compressor 14 is got rid of, flow out from condenser 16 through self-operated three-way valve 15, and take over 9 through the condenser of bypass throttle valve and take over 8 from throttle capillary tube 10 from vaporizer and flow back to vaporizer 13, machine room special machine enters refrigeration mode (Fig. 2, shown in Figure 3).
Embodiment two
Fig. 4 is the structure characteristic of throttling arrangement bypass throttle valve when adopting heating power expansion valve, and state is the valve position state of machine room special machine when being in the heat pipe pattern among the figure.
In this embodiment, throttle structure is finished by heating power expansion valve 17.When bypass throttle valve connected into machine room special machine, condenser was taken over 9 and is connected with condenser 16 outlets, and vaporizer adapter 8 is connected with vaporizer 13 entrances, and exhaust capillary tube 5 is connected with compressor 14 outlet pipes, and temperature-sensitive bag 18 is arranged on vaporizer 13 outlet ports.
When compressor 14 is shut down; spool 2 is under the effect of spring 7; move to hyperbaric chamber 11 directions; making condenser adapter 9 and vaporizer take over 8 is communicated with; refrigerant from evaporator drier 13 flows out from condenser 16 through self-operated three-way valve 15; and take over 9 through the condenser of bypass throttle valve and take over 8 from low-pressure cavity 12 from vaporizer and flow back to vaporizer 13, machine room special machine enters the heat pipe pattern.
When compressor 14 starts, refrigerant vapor in the compressor 14 suction vaporizers 13, the high pressure refrigerant vapor enters in the hyperbaric chamber 11 by exhaust capillary tube 5 simultaneously, inhale at compressor, under the poor effect of exhaust pressure, overcome compressive tension and the frictional force of spring 7, promoting spool 2 moves to low-pressure cavity 12 directions, spool 2 is closed condenser and is taken over 9, making condenser adapter 9 and vaporizer take over 8 only is communicated with by heating power expansion valve 17, the high pressure refrigerant vapor is after compressor 14 is got rid of, flow out from condenser 16 through self-operated three-way valve 15, and take over 9 through the condenser of bypass throttle valve and take over 8 from heating power expansion valve 17 from vaporizer and flow back to vaporizer 13, machine room special machine enters refrigeration mode.
No matter be the bypass throttle valve that adopts which kind of embodiment, refrigerant circulation blending machine room special machine is all according to indoor, the height of outdoor temperature, start and stop compressor 14, the suction of bypass throttle valve during by spring force and compressor start, exhaust pressure official post spool 2 is in valve body 1 interior movement, thereby realize that the self cooling condenser adapter 9 of refrigerant is to bypass or the throttlings of vaporizer adapter 8, need not any external force and only realize freely changing of heat pipe pattern and refrigeration mode according to the starting state of compressor, thereby give full play to the power savings advantages of refrigerant circulation blending machine room special machine uniqueness, improve the reliability of machine room special machine.
Claims (3)
1. coolant natural circulation type machine room special machine bypass throttle valve is characterized in that: this bypass throttle valve comprises that valve body (1), condenser are taken over (9), vaporizer is taken over (8), exhaust capillary tube (5) and throttling arrangement (10); Be provided with spool (2) and valve seat (6) in the described valve body (1), spool (2) is mobile vertically in valve body (1); Valve body (1) two ends are provided with the first end cap (3) and the second end cap (4), cavity between the first end cap and spool (2) one ends is hyperbaric chamber (11), and the cavity between the second end cap and spool (2) the other end is low-pressure cavity (12); Be provided with spring (7) and valve seat in the described low-pressure cavity (12), spring (7) one ends are connected with valve seat (6), and the other end is connected with spool (2); Described exhaust capillary tube (5) is connected with hyperbaric chamber (11); One end of described throttling arrangement (10) is taken over (9) with condenser and is connected, and the other end is taken over (8) with vaporizer and is connected.
2. coolant natural circulation type machine room special machine bypass throttle valve according to claim 1 is characterized by: described throttling arrangement (10) employing capillary tube, heating power expansion valve or electric expansion valve.
3. coolant natural circulation type machine room special machine bypass throttle valve according to claim 1, it is characterized by: described spool (2) is made by nonrigid material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110171791 CN102242817B (en) | 2011-06-23 | 2011-06-23 | Refrigerant natural circulation combined type bypass throttle valve for special machine of machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110171791 CN102242817B (en) | 2011-06-23 | 2011-06-23 | Refrigerant natural circulation combined type bypass throttle valve for special machine of machine room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102242817A CN102242817A (en) | 2011-11-16 |
| CN102242817B true CN102242817B (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110171791 Expired - Fee Related CN102242817B (en) | 2011-06-23 | 2011-06-23 | Refrigerant natural circulation combined type bypass throttle valve for special machine of machine room |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405370B (en) * | 2018-09-18 | 2020-12-25 | 青岛海尔空调器有限总公司 | Throttling device and air conditioner |
| CN109341153B (en) * | 2018-12-13 | 2024-07-16 | 珠海格力电器股份有限公司 | Refrigerant circulation system and refrigeration equipment |
| CN110455014B (en) * | 2019-08-23 | 2024-08-09 | 仲恺农业工程学院 | A heat pump system with energy-saving defrosting cycle function |
| CN112066458B (en) * | 2020-09-07 | 2024-07-16 | 珠海格力电器股份有限公司 | Air conditioning unit adopting throttle valve and control method thereof |
| CN115950121B (en) * | 2022-12-02 | 2024-09-24 | 珠海格力电器股份有限公司 | Capillary structure and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172239A (en) * | 1996-06-21 | 1998-02-04 | 张继科 | Refrigerant overcirculating vapour compression refrigerator system |
| CN2706644Y (en) * | 2004-05-20 | 2005-06-29 | 顾金良 | Four-way electromagnetic reversing valve |
| CN101025127A (en) * | 2006-02-24 | 2007-08-29 | 同济大学 | Axial-symmetric vector spray-tube A9/A8 area ratio dislocation protection hydraulic system |
| US7458525B2 (en) * | 2004-07-06 | 2008-12-02 | Denso Corporation | Common-rail injector |
| CN202118302U (en) * | 2011-06-23 | 2012-01-18 | 清华大学 | Bypass throttle valve for machine special for refrigerant and natural circulation combination machine room |
-
2011
- 2011-06-23 CN CN 201110171791 patent/CN102242817B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172239A (en) * | 1996-06-21 | 1998-02-04 | 张继科 | Refrigerant overcirculating vapour compression refrigerator system |
| CN2706644Y (en) * | 2004-05-20 | 2005-06-29 | 顾金良 | Four-way electromagnetic reversing valve |
| US7458525B2 (en) * | 2004-07-06 | 2008-12-02 | Denso Corporation | Common-rail injector |
| CN101025127A (en) * | 2006-02-24 | 2007-08-29 | 同济大学 | Axial-symmetric vector spray-tube A9/A8 area ratio dislocation protection hydraulic system |
| CN202118302U (en) * | 2011-06-23 | 2012-01-18 | 清华大学 | Bypass throttle valve for machine special for refrigerant and natural circulation combination machine room |
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| Publication number | Publication date |
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| CN102242817A (en) | 2011-11-16 |
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