CN110410328A - Compressor and air conditioning system with automatically regulated slide valve position - Google Patents
Compressor and air conditioning system with automatically regulated slide valve position Download PDFInfo
- Publication number
- CN110410328A CN110410328A CN201910775069.4A CN201910775069A CN110410328A CN 110410328 A CN110410328 A CN 110410328A CN 201910775069 A CN201910775069 A CN 201910775069A CN 110410328 A CN110410328 A CN 110410328A
- Authority
- CN
- China
- Prior art keywords
- slide valve
- pressure
- cylinder
- piston
- compressor
- 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.)
- Withdrawn
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 title description 4
- 210000003781 tooth socket Anatomy 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 abstract description 4
- 238000009833 condensation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a compressor with an automatic slide valve position adjusting function and an air conditioning system. The compressor includes: a pair of rotors; a spool valve; a first cylinder; a second cylinder; the first piston and the second piston jointly drive the slide valve and the rotor pair to slide or be static relatively. The invention provides a compressor with an automatic slide valve position adjusting function and an air conditioning system, wherein two ends of the slide valve are respectively provided with an air cylinder, so that the exhaust pressure and the condensation pressure of the compressor are respectively introduced into the two air cylinders, the slide valve is driven to move by utilizing the difference value of the two pressures, when the exhaust pressure and the condensation pressure have the difference value, the slide valve can move at the first time, and the exhaust pressure of the compressor and the condensation pressure tend to be equal in the moving process, so that the reaction efficiency and the adjusting precision of the slide valve are increased, the aim of automatically adjusting the slide valve is fulfilled, the defect that a slide valve adjusting mechanism and the like are additionally arranged in the compressor is overcome, and the structural complexity of the compressor is effectively.
Description
Technical field
The present invention relates to compression set technical field, especially a kind of compressor and sky with automatic adjustment spool position
Adjusting system.
Background technique
Due to changing at the time of cooling capacity consumption and environment temperature, the evaporating temperature and condensation temperature of refrigeration system in operation
And its corresponding saturation pressure changes therewith, thus refrigeration compressor in systems the moment be faced with before air inlet and exhaust outlet it
Pressure change afterwards；Meanwhile for screw compressor, pressure is condensed after the pressure at expulsion of compressor is lower than exhaust outlet
When power, needs screw rotor extra work to force to squeeze out to inner gas by rotor, compressor efficiency is reduced, as the row of compressor
Atmospheric pressure be higher than exhaust outlet after condensing pressure when, illustrate driving machinery unnecessary extra power is had existed in compression process
Consumption, can also reduce compressor efficiency at this time.Therefore, helical-lobe compressor itself need to carry out corresponding inner pressure ratio/interior volume specific ratio adjusting,
During evaporating pressure (i.e. pressure of inspiration(Pi)) and continually changing condensing pressure, guarantee pressure at expulsion always close to
Condensing pressure, with realize under different operating conditions equipment high efficiency rate operation, be all made of in the prior art slide valve driving mechanisms (including
Manual rocking handle screw rod, servo cylinder and hydraulic cylinder etc.) driving slide valve is mobile, however the regulating command of slide valve driving mechanisms comes from
Artificial observation is simultaneously manually operated or is adjusted based on pressure on unit or temperature detection result feedback electric signal, and compressor is caused
Structure is complicated, and reliability and accuracy is difficult to ensure.
Summary of the invention
In order to solve slide valve driving mechanisms reliability and the low technical problem of accuracy, and provides and a kind of utilize pressure at expulsion
The mobile compressor and air-conditioning system with automatic adjustment spool position with the difference driving slide valve of condensing pressure.
A kind of compressor, comprising: rotor pair has suction end and an exhaust end, and the suction end and the exhaust end it
Between be provided with closing tooth socket；Slide valve is set to the rotor to upper, and can the relatively described rotor to free to slide, the cunning
The first through hole being connected to the closing tooth socket is provided on valve；First cylinder, has first piston, and the first piston passes through
First connecting rod is connect with the first end of the slide valve, and is provided in the first piston, the first connecting rod and the slide valve
One end of first pressure channel, first pressure channel is connected to the first through hole, in the other end and first cylinder
Portion's connection；Second cylinder has second piston, and the second piston is connect by second connecting rod with the second end of the slide valve,
And the second pressure channel is provided in the second piston, the second connecting rod and the slide valve, second pressure channel
One end is connected to the exhaust end, and the other end is connected to second cylinder；The first piston and the second piston are common
Drive the slide valve and the rotor to producing relative sliding or opposing stationary.
The distance of the first through hole to the exhaust end is less than the first passage to the distance of the suction end.
The first piston is in the row of stroke and the second piston in second cylinder in first cylinder
Journey size is identical.
The closing tooth socket is divided into the suction unit being sequentially communicated, compression unit and exhaust along the suction end to the exhaust end
Portion, and in the range of the stroke, the first through hole is connected to the exhaust portion.
The compressor further includes shell, and the rotor is all set in the shell to the slide valve, and the row
Discharge chamber is surrounded between gas end and the shell, one end of second pressure channel is connected to the discharge chamber, the other end with
The second cylinder connection.
In the slide valve is free to slide include: when the pressure in the discharge chamber is greater than the pressure of the exhaust portion,
The slide valve is slided to first cylinder direction；When the pressure in the discharge chamber is less than the pressure of the exhaust portion, institute
Slide valve is stated to slide to second cylinder direction；It is described when the pressure in the discharge chamber is equal to the pressure of the exhaust portion
Slide valve and the rotor are opposing stationary to holding.
When in the discharge chamber pressure and the exhaust portion pressure difference absolute value be less than the slide valve by
Frictional force when, the slide valve and the rotor are to keeping opposing stationary.
Spring is provided in first cylinder, one end of the spring is abutted with the first piston, the other end and institute
The bottom for stating the first cylinder abuts.
A kind of air-conditioning system, including above-mentioned compressor.
The compressor and air-conditioning system with automatic adjustment spool position provided by the invention, sets respectively at the both ends of slide valve
Cylinder is set, and is connected to two cylinders with discharge chamber and closing tooth socket respectively, to introduce compressor respectively in two cylinders
Pressure at expulsion and condensing pressure, it is mobile using the difference driving slide valve of two pressure, and when pressure at expulsion and condensing pressure are deposited
In difference, slide valve can moved at the first time, and make in moving process compressor pressure at expulsion can with it is cold
Solidifying pressure tends to be equal, increases the reaction efficiency of slide valve and the precision of adjusting, thus achieve the purpose that automatically adjust slide valve, gram
It has taken needs and slide valve regulating mechanism etc. is additionally set inside compressor, the structure complexity of compressor is effectively reduced.
Detailed description of the invention
Fig. 1 is the rotor of the embodiment of the compressor with automatic adjustment spool position provided by the invention and air-conditioning system
To the structural schematic diagram cooperated with slide valve；
In figure:
1, rotor pair；2, slide valve；21, first through hole；3, the first cylinder；31, first piston；32, the first pressure channel；
33, first connecting rod；；4, the second cylinder；41, second piston；42, the second pressure channel；43, second connecting rod.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention is further elaborated.It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, not
For limiting the present invention.
Compressor as shown in Figure 1, comprising:
Rotor has suction end and exhaust end, and closing tooth is provided between the suction end and the exhaust end to 1
Slot, refrigerant flows through rotor to 1 by closing tooth socket, and completes compression inside closing tooth socket；
Slide valve 2 is set to the rotor on 1, and can the relatively described rotor it is free to slide to 1, set on the slide valve 2
Be equipped with the first through hole 21 that be connected to of closing tooth socket, by the position of regulating slide valve 2, adjust the condensing pressure of compressor with
Pressure at expulsion is agreed with；
First cylinder 3, has a first piston 31, the first piston 31 pass through first connecting rod 33 and the slide valve 2 the
One end connection, and the first pressure channel 32, institute are provided in the first piston 31, the first connecting rod 33 and the slide valve 2
The one end for stating the first pressure channel 32 is connected to the first through hole 21, is connected to inside the other end and first cylinder 3, closing
The pressure at expulsion of refrigerant in tooth socket is transferred in the first cylinder 3 by the first pressure channel 32, pushes first using pressure at expulsion
Piston 31 moves freely in the first cylinder 3；
Second cylinder 4, has a second piston 41, the second piston 41 pass through second connecting rod 43 and the slide valve 2 the
The connection of two ends, and the second pressure channel 42, institute are provided in the second piston 41, the second connecting rod 43 and the slide valve 2
The one end for stating the second pressure channel 42 is connected to the exhaust end, and the other end is connected to second cylinder 4, by the cold of compressor
Solidifying pressure is led in the second cylinder 4, is moved freely in the second cylinder 4 using condensing pressure driving second piston 41；
Since first piston 31 and second piston 41 are arranged on slide valve 2, so the pressure that slide valve 2 is born is first
The difference for the pressure that the pressure and second piston 41 that piston 31 is born are born, the first piston 31 and the second piston 41 are total
With driving the slide valve 2 and the rotor to produce relative sliding or opposing stationary to 1.
The first through hole 21 arrives distance of the distance less than the first passage to the suction end of the exhaust end,
The maximum pressure value closed in tooth socket is led in the first cylinder 3 as far as possible, the stress for guaranteeing slide valve 2 is rotor to 1
The difference of the condensing pressure of pressure at expulsion and compressor, to increase the reliability and accuracy of slide valve 2.
Stroke and the second piston 41 of the first piston 31 in first cylinder 3 are in second cylinder 4
Interior stroke dimension is identical, and the special stroke is identical as the adjustable range of slide valve 2, guarantees the reliable sliding of slide valve 2.
The closing tooth socket is divided into the suction unit being sequentially communicated, compression unit and exhaust along the suction end to the exhaust end
Portion, and in the range of the stroke, the first through hole 21 is connected to the exhaust portion, at this time the refrigerant pressure in exhaust portion
For rotor to 1 pressure at expulsion.
The compressor further includes shell, and the rotor is all set in the shell 1 and the slide valve 2, and described
Discharge chamber is surrounded between exhaust end and the shell, one end of second pressure channel 42 is connected to the discharge chamber, another
End is connected to second cylinder 4, and the refrigerant pressure in the discharge chamber is the condensing pressure of compressor.
In the slide valve 2 is free to slide include: when the pressure in the discharge chamber is greater than the pressure of the exhaust portion,
Pressure rise in second cylinder 4, the balance of slide valve are broken, and the slide valve 2 is slided to 3 direction of the first cylinder, make to press
Contracting self-contained volume is than increasing, and the pressure at expulsion at first through hole 21 also increases at this time, so that the pressure in the first cylinder 3
Power also increases, until the equal namely new condensing pressure of pressure and new row in the pressure and the second cylinder in the first cylinder
When atmospheric pressure mutually agrees with, slide valve stops sliding and reaches equilibrium state again；Similarly, described in being less than when the pressure in the discharge chamber
When the pressure of exhaust portion, pressure rise in the first cylinder 3, the balance of slide valve is broken, and the slide valve 2 is to second cylinder
The sliding of 4 directions, so that compressor interior volume specific ratio reduces, the pressure at expulsion at first through hole 21 is also reduced, so that in the first cylinder 3
Pressure reduction, until until the equal namely new condensing pressure of pressure in pressure and the second cylinder in the first cylinder and
When new pressure at expulsion is mutually agreed with, slide valve stops sliding and reaches equilibrium state again；When the pressure in the discharge chamber is equal to institute
When stating the pressure of exhaust portion, the slide valve 2 keeps opposing stationary to 1 with the rotor；Namely directly utilize the change of condensing pressure
Change driving slide valve and reach corresponding position, and then achieve the purpose that adjust compressor volumetric ratio, realizes slide valve automatic adjustment (certainly
Adapt to) purpose.
When in the discharge chamber pressure and the exhaust portion pressure difference absolute value be less than the slide valve 2 by
Frictional force when, the slide valve 2 and the rotor keep opposing stationary to 1, that is to say, that when working conditions of compressor is stablized, although
Can have a small pressure oscillation, but frictional force can spool control valve 2 be in opposing stationary state, avoid slide valve 2 frequent
It slides and causes the reliability of compressor to reduce and even generate surprisingly.
Spring is provided in first cylinder 3, one end of the spring is abutted with the first piston 31, the other end with
The bottom of first cylinder 3 abuts, and guarantees reliability of the first piston 31 in the first cylinder 3 using spring, while pressing
When contracting machine starts, the initial sliding power of slide valve 2 is provided.
A kind of air-conditioning system, including above-mentioned compressor.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of compressor, it is characterised in that: include:
Rotor has suction end and exhaust end to (1), and closing tooth socket is provided between the suction end and the exhaust end；
Slide valve (2) is set to the rotor on (1), and can the relatively described rotor it is free to slide to (1), the slide valve (2)
On be provided with and the first through hole (21) that is connected to of closing tooth socket；
First cylinder (3) has first piston (31), and the first piston (31) passes through first connecting rod (33) and the slide valve
(2) first end connection, and first is provided in the first piston (31), the first connecting rod (33) and the slide valve (2)
One end of pressure channel (32), first pressure channel (32) is connected to the first through hole (21), the other end and described the
Connection inside one cylinder (3)；
Second cylinder (4) has second piston (41), and the second piston (41) passes through second connecting rod (43) and the slide valve
(2) second end connection, and second is provided in the second piston (41), the second connecting rod (43) and the slide valve (2)
One end of pressure channel (42), second pressure channel (42) is connected to the exhaust end, the other end and second cylinder
(4) it is connected to；
The first piston (31) and the second piston (41) drive the slide valve (2) and the rotor to generate (1) jointly
Opposite sliding or opposing stationary.
2. compressor according to claim 1, it is characterised in that: the first through hole (21) arrives the distance of the exhaust end
Less than the first passage to the distance of the suction end.
3. compressor according to claim 1, it is characterised in that: the first piston (31) is in first cylinder (3)
The stroke dimension of interior stroke and the second piston (41) in second cylinder (4) is identical.
4. compressor according to claim 3, it is characterised in that: the closing tooth socket is along the suction end to the exhaust
End is divided into the suction unit being sequentially communicated, compression unit and exhaust portion, and in the range of the stroke, the first through hole (21) with
The exhaust portion connection.
5. compressor according to claim 4, it is characterised in that: the compressor further includes shell, and the rotor is to (1)
It is all set in the shell with the slide valve (2), and surrounds discharge chamber between the exhaust end and the shell, described second
One end of pressure channel (42) is connected to the discharge chamber, and the other end is connected to second cylinder (4).
6. compressor according to claim 5, it is characterised in that: include: in the slide valve (2) is free to slide
When the pressure in the discharge chamber is greater than the pressure of the exhaust portion, slide valve (2) the first cylinder of Xiang Suoshu (3) side
To sliding；
When the pressure in the discharge chamber is less than the pressure of the exhaust portion, slide valve (2) the second cylinder of Xiang Suoshu (4) side
To sliding；
When the pressure in the discharge chamber is equal to the pressure of the exhaust portion, the slide valve (2) and the rotor keep (1)
It is opposing stationary.
7. compressor according to claim 6, it is characterised in that: when the pressure and the exhaust portion in the discharge chamber
When the absolute value of the difference of pressure is less than the frictional force that the slide valve (2) are subject to, the slide valve (2) and the rotor protect (1)
It holds opposing stationary.
8. compressor according to claim 1, it is characterised in that: be provided with spring, the bullet in first cylinder (3)
One end of spring is abutted with the first piston (31), and the other end is abutted with the bottom of first cylinder (3).
9. a kind of air-conditioning system, it is characterised in that: including compressor described in any item of the claim 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910775069.4A CN110410328A (en) | 2019-08-21 | 2019-08-21 | Compressor and air conditioning system with automatically regulated slide valve position |
| PCT/CN2019/128010 WO2021031488A1 (en) | 2019-08-21 | 2019-12-24 | Compressor and air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910775069.4A CN110410328A (en) | 2019-08-21 | 2019-08-21 | Compressor and air conditioning system with automatically regulated slide valve position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110410328A true CN110410328A (en) | 2019-11-05 |
Family
ID=68368376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910775069.4A Withdrawn CN110410328A (en) | 2019-08-21 | 2019-08-21 | Compressor and air conditioning system with automatically regulated slide valve position |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110410328A (en) |
| WO (1) | WO2021031488A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031488A1 (en) * | 2019-08-21 | 2021-02-25 | 珠海格力电器股份有限公司 | Compressor and air-conditioning system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042226A (en) * | 2011-01-05 | 2011-05-04 | 上海维尔泰克螺杆机械有限公司 | Screw compressor having slide valve with flexible volume ratio |
| CN105715548A (en) * | 2016-04-01 | 2016-06-29 | 浙江开山凯文螺杆机械有限公司 | Two-grade screw rod compressor with flexible slide valve |
| CN211039038U (en) * | 2019-08-21 | 2020-07-17 | 珠海格力电器股份有限公司 | Compressor and air conditioning system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6881040B2 (en) * | 2001-02-15 | 2005-04-19 | Mayekawa Mfg. Co., Ltd. | Multi-stage screw compressor unit accommodating high suction pressure and pressure fluctuations and method of operation thereof |
| EP2287444A1 (en) * | 2009-08-19 | 2011-02-23 | Hanbell Precise Machinery Co., Ltd. | Rotary screw compressor with improved volume ratio regulation means |
| CN203257684U (en) * | 2012-12-26 | 2013-10-30 | 福建雪人压缩机科技有限公司 | Combination type screw compressor energy and internal volume ratio slide valve adjustment mechanism |
| CN103470504A (en) * | 2013-08-29 | 2013-12-25 | 吴家伟 | Energy and internal volume ratio unified regulating mechanism of screw compressor |
| CN110410328A (en) * | 2019-08-21 | 2019-11-05 | 珠海格力电器股份有限公司 | Compressor and air conditioning system with automatically regulated slide valve position |
-
2019
- 2019-08-21 CN CN201910775069.4A patent/CN110410328A/en not_active Withdrawn
- 2019-12-24 WO PCT/CN2019/128010 patent/WO2021031488A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042226A (en) * | 2011-01-05 | 2011-05-04 | 上海维尔泰克螺杆机械有限公司 | Screw compressor having slide valve with flexible volume ratio |
| CN105715548A (en) * | 2016-04-01 | 2016-06-29 | 浙江开山凯文螺杆机械有限公司 | Two-grade screw rod compressor with flexible slide valve |
| CN211039038U (en) * | 2019-08-21 | 2020-07-17 | 珠海格力电器股份有限公司 | Compressor and air conditioning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031488A1 (en) * | 2019-08-21 | 2021-02-25 | 珠海格力电器股份有限公司 | Compressor and air-conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021031488A1 (en) | 2021-02-25 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191105 |
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| WW01 | Invention patent application withdrawn after publication |