CN210033882U - Compressor and air conditioning system - Google Patents
Compressor and air conditioning system Download PDFInfo
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- CN210033882U CN210033882U CN201920884595.XU CN201920884595U CN210033882U CN 210033882 U CN210033882 U CN 210033882U CN 201920884595 U CN201920884595 U CN 201920884595U CN 210033882 U CN210033882 U CN 210033882U
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Abstract
The utility model provides a compressor and air conditioning system. The compressor comprises a shell, wherein an air suction port is formed in the shell, at least two compression cavities which are parallel and sequentially communicated are formed in the shell, and all the compression cavities are far away from the air suction port and respectively comprise a first-stage compression cavity and at least one second-stage compression cavity. The utility model provides a compressor and air conditioning system, through setting up the tonifying qi mouth in second grade compression chamber department, can be the second grade compression chamber additional pressure by outside pressure supply structure after the ability, prevent the gaseous refluence in the second grade compression chamber, increase centrifugal compressor second grade compression chamber suction refrigerant gas's flow under the underspin, thereby effectively solved centrifugal compressor because the effective energy head that the not enough messenger impeller of air-breathing capacity reduces and take place the surge under the underspin, and the refrigerant flow of condenser of flowing through has been reduced, the minimum refrigeration ability of system has further been reduced, centrifugal cooling water set's operating range has been widened.
Description
Technical Field
The utility model relates to an air treatment equipment technical field, especially a compressor and air conditioning system.
Background
The compressor has the working principle that gas obtains kinetic energy by a centrifugal impeller rotating at a high speed, then the high-speed flowing gas obtaining the kinetic energy is thrown into a diffusion cavity to reduce the speed and pressurize, the kinetic energy obtained by the gas is converted into pressure energy, and therefore the purpose of improving the pressure of a transport medium is achieved.
For the frequency conversion centrifugal compressor and the water chilling unit thereof, when the compressor runs at low rotating speed, the air suction amount of the centrifugal impeller is reduced, the loss of refrigerant gas passing through the impeller flow channel is increased to a certain degree, the effective energy is continuously reduced, the exhaust pressure cannot overcome the condensing pressure, so that the impeller cannot normally discharge gas, the exhaust pressure is reduced, therefore, the gas at the high-pressure part behind the impeller flows back, when the gas flowing back supplements the gas quantity in the impeller, the impeller starts to work again to discharge the gas, then the gas supply amount is still insufficient, the exhaust pressure is reduced, and the backflow occurs again, the periodic repetition makes the compressor produce violent vibration and noise and can not work normally, the surging phenomenon is specific to the centrifugal compressor, so that the problem that the rotating speed adjusting range of the variable-frequency magnetic suspension centrifugal compressor is limited exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem of surging of a centrifugal compressor, the compressor and the air conditioning system capable of solving the surging problem through air supplement are provided.
The utility model provides a compressor, includes the casing, be provided with the induction port on the casing, just the inside of casing is formed with two at least compression chamber that just communicate in proper order side by side, all the compression chamber is along keeping away from the induction port direction includes a one-level compression chamber and at least one second grade compression chamber respectively, be provided with the tonifying qi mouth on the casing, the tonifying qi mouth with correspond second grade compression chamber intercommunication, just the tonifying qi mouth feeds through with the pressure feed structure.
The pressure supply structure is a discharge port of the compressor or a condenser communicated with the discharge port of the compressor.
The quantity of compression chamber is two, and along keeping away from the direction of induction port includes one-level compression chamber and second grade compression chamber, the tonifying qi mouth with second grade compression chamber intercommunication.
And a gas passing channel is formed between the first-stage compression cavity and the second-stage compression cavity, and the gas supplementing port is communicated with the part, close to the second-stage compression cavity, of the gas passing channel.
An electromagnetic valve is arranged at the air supplementing opening.
And a throttling mechanism is arranged at the air supplementing opening.
The throttling mechanism is a throttling orifice plate.
An air conditioning system comprises the compressor.
The air conditioning system further comprises a bypass pipeline, wherein the first end of the bypass pipeline is communicated with the exhaust port of the compressor, and the second end of the bypass pipeline is communicated with the air supplementing port.
The air conditioning system further comprises a condenser and a bypass pipeline, wherein an inlet of the condenser is communicated with an exhaust port of the compressor, a first end of the bypass pipeline is communicated with an inlet of the condenser, and a second end of the bypass pipeline is communicated with the air supplementing port.
The condenser is a shell-and-tube condenser, an inlet and an air supply hole are formed in the top of the shell-and-tube condenser, and the first end of the bypass pipeline is communicated with the air supply hole.
The utility model provides a compressor and air conditioning system, through setting up the tonifying qi mouth in second grade compression chamber department, can be the second grade compression chamber additional pressure by outside pressure supply structure after the ability, prevent the gaseous refluence in the second grade compression chamber, increase centrifugal compressor second grade compression chamber suction refrigerant gas's flow under the underspin, thereby effectively solved centrifugal compressor because the effective energy head that the not enough messenger impeller of air-breathing capacity reduces and take place the surge under the underspin, and the refrigerant flow of condenser of flowing through has been reduced, the minimum refrigeration ability of system has further been reduced, centrifugal cooling water set's operating range has been widened.
Drawings
Fig. 1 is a partial schematic view of a compressor and an air conditioning system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an air conditioning system according to an embodiment of the present invention;
fig. 3 is an installation state diagram of an air conditioning system according to an embodiment of the present invention;
in the figure:
1. a housing; 11. an air supplement port; 2. an air suction port; 3. a compression chamber; 31. a first stage compression chamber; 32. a secondary compression chamber; 4. a condenser; 5. a bypass line.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The compressor shown in fig. 1 to 3 includes a housing 1, a suction port 2 is provided on the housing 1, at least two compression cavities 3 which are parallel and sequentially communicated are formed in the shell 1, all the compression cavities 3 respectively comprise a first-stage compression cavity 31 and at least one second-stage compression cavity 32 along the direction far away from the air suction port 2, an air supplement port 11 is arranged on the shell 1, the air supplement port 11 is communicated with the corresponding secondary compression cavity 32, the air supplement port 11 is communicated with a pressure supply structure, wherein the pressure supply mechanism can provide refrigerant gas with certain pressure, the gas supplementing opening 11 is used for supplementing the refrigerant gas with pressure in the pressure supply mechanism into the secondary compression cavity 32, the flow rate of the refrigerant gas sucked into the secondary compression cavity 32 by the centrifugal compressor at low rotating speed is increased, therefore, the problem of surging caused by reduction of the effective energy head of the impeller due to insufficient air suction amount at low rotating speed of the centrifugal compressor is effectively solved.
The pressure supply structure is the exhaust port of the compressor or the condenser 4 communicated with the exhaust port of the compressor, when the pressure supply structure is the condenser 4, the flow of refrigerant gas sucked into the secondary compression cavity 32 of the centrifugal compressor at a low rotating speed is increased, the flow of the refrigerant flowing through the condenser 4 is also reduced, the minimum refrigerating capacity of the system is further reduced, and the operation range of the centrifugal water chilling unit is widened.
The number of the compression cavities 3 is two, the compression cavities comprise a first-stage compression cavity 31 and a second-stage compression cavity 32 along the direction far away from the suction port 2, and the air supplementing port 11 is communicated with the second-stage compression cavity 32.
A gas passing channel is formed between the first-stage compression cavity 31 and the second-stage compression cavity 32, and the gas supplementing port 11 is communicated with a part of the gas passing channel, which is close to the second-stage compression cavity 32.
The air supplementing port 11 is provided with an electromagnetic valve, and the opening and closing of the air supplementing port 11 are controlled by the electromagnetic valve, so that the air supplementing process can be controlled according to needs.
The air supplementing port 11 is provided with a throttling mechanism for throttling the refrigerant gas to a certain degree and controlling the flow of the air supplementing port 11.
The throttling mechanism is a throttling orifice plate.
An air conditioning system comprises the compressor.
The air conditioning system further comprises a bypass pipeline 5, a first end of the bypass pipeline 5 is communicated with an exhaust port of the compressor, a second end of the bypass pipeline 5 is communicated with the air supplementing port 11, and preferably, an electromagnetic valve and/or a throttle orifice plate are/is arranged on the bypass pipeline 5.
The air conditioning system further comprises a condenser 4 and a bypass pipeline 5, wherein an inlet of the condenser 4 is communicated with an exhaust port of the compressor, a first end of the bypass pipeline 5 is communicated with an inlet of the condenser 4, and a second end of the bypass pipeline is communicated with the air supplementing port 11.
The condenser 4 is a shell-and-tube condenser 4, an inlet and an air supply hole are formed in the top of the shell-and-tube condenser 4, and the first end of the bypass pipeline 5 is communicated with the air supply hole.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (11)
1. The utility model provides a compressor, includes casing (1), be provided with induction port (2) on casing (1), just the inside of casing (1) is formed with two at least compression chamber (3) that just communicate in proper order side by side, all compression chamber (3) are along keeping away from induction port (2) direction includes one level compression chamber (31) and at least one second grade compression chamber (32), its characterized in that respectively: the shell (1) is provided with an air supplementing port (11), the air supplementing port (11) is communicated with the corresponding secondary compression cavity (32), and the air supplementing port (11) is communicated with a pressure supply structure.
2. The compressor of claim 1, wherein: the pressure supply structure is a discharge port of the compressor or a condenser (4) communicated with the discharge port of the compressor.
3. The compressor of claim 1, wherein: the number of compression chamber (3) is two, and along keeping away from the direction of induction port (2) includes one-level compression chamber (31) and second grade compression chamber (32), tonifying qi mouth (11) with second grade compression chamber (32) intercommunication.
4. A compressor according to claim 3, wherein: an air passing channel is formed between the first-stage compression cavity (31) and the second-stage compression cavity (32), and the air supplementing port (11) is communicated with the part, close to the second-stage compression cavity (32), of the air passing channel.
5. The compressor of claim 1, wherein: an electromagnetic valve is arranged at the air supplementing port (11).
6. The compressor of claim 1, wherein: and a throttling mechanism is arranged at the air supplementing port (11).
7. The compressor of claim 6, wherein: the throttling mechanism is a throttling orifice plate.
8. An air conditioning system characterized by: comprising a compressor according to any one of claims 1 to 7.
9. The air conditioning system of claim 8, wherein: the air conditioning system further comprises a bypass pipeline (5), wherein the first end of the bypass pipeline (5) is communicated with the exhaust port of the compressor, and the second end of the bypass pipeline is communicated with the air supplementing port (11).
10. The air conditioning system of claim 8, wherein: the air conditioning system further comprises a condenser (4) and a bypass pipeline (5), wherein an inlet of the condenser (4) is communicated with an exhaust port of the compressor, a first end of the bypass pipeline (5) is communicated with an inlet of the condenser (4), and a second end of the bypass pipeline is communicated with the air supplementing port (11).
11. The air conditioning system of claim 10, wherein: the condenser (4) is a shell-and-tube condenser (4), an inlet and an air supply hole are formed in the top of the shell-and-tube condenser (4), and the first end of the bypass pipeline (5) is communicated with the air supply hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920884595.XU CN210033882U (en) | 2019-06-12 | 2019-06-12 | Compressor and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920884595.XU CN210033882U (en) | 2019-06-12 | 2019-06-12 | Compressor and air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210033882U true CN210033882U (en) | 2020-02-07 |
Family
ID=69347692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920884595.XU Active CN210033882U (en) | 2019-06-12 | 2019-06-12 | Compressor and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210033882U (en) |
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2019
- 2019-06-12 CN CN201920884595.XU patent/CN210033882U/en active Active
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