CN116538087A - Novel refrigeration compressor - Google Patents
Novel refrigeration compressor Download PDFInfo
- Publication number
- CN116538087A CN116538087A CN202310739223.9A CN202310739223A CN116538087A CN 116538087 A CN116538087 A CN 116538087A CN 202310739223 A CN202310739223 A CN 202310739223A CN 116538087 A CN116538087 A CN 116538087A
- Authority
- CN
- China
- Prior art keywords
- compressor
- permanent magnet
- screw
- magnet motor
- motor
- 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.)
- Pending
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 230000001276 controlling effect Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000306 component Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
-
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention relates to the technical field of refrigeration compressors, in particular to a novel refrigeration compressor; comprises a compressor shell, a compressor screw and a permanent magnet motor, wherein the compressor screw and the permanent magnet motor are arranged in the compressor shell; the permanent magnet motor is used for driving the compressor screw to rotate; the output power of the refrigeration compressor can be regulated by controlling the rotating speed of the permanent magnet motor; an air inlet is formed in one end, close to the permanent magnet motor, of the compressor shell, and an air outlet is formed in one end, close to the compressor screw, of the compressor shell; a precise filter screen is arranged between the air inlet and the permanent magnet motor, and can be used for filtering metal scraps to protect the permanent magnet motor; the refrigerating compressor thoroughly removes the component of the capacity adjusting piston, ensures the normal operation and the frequency conversion effect of the compressor through the arrangement of the permanent magnet motor, can simplify the structure of the whole compressor, reduce the volume, reduce the production and use cost, ensure that the input power is consistent with the output power, and has the effect of saving energy.
Description
Technical Field
The invention relates to the technical field of refrigeration compressors, in particular to a novel refrigeration compressor.
Background
The existing screw refrigeration compressors all adopt motors to drive driving screw rotors to rotate, and drive driven rotors through the driving screw rotors, the screw rotors are divided into female rotors and male rotors, the female rotors and the male rotors are meshed with each other, the outer circle of the rotors is matched with a shell, when the meshed rotors work to rotate, the volumes between tooth grooves of the rotors and the shell are changed, so that gas suction, compression and discharge are realized, and continuous gas compression circulation is completed.
Most screw refrigerating compressors are generally driven by an asynchronous motor, are not suitable for variable frequency operation, and in large-scale media rod refrigerating compressors, a slide valve type energy adjusting mechanism (namely an accommodating piston) can be adopted, but because the slide valve type energy adjusting mechanism has a complex structure, the processing precision is required to be high, the cost is high, the accommodating piston belongs to a vulnerable part, the cost is further increased, and in the conventional butterfly rod type refrigerating compressors for air conditioners, no energy adjusting mechanism is arranged, so that the structure of the screw refrigerating compressor is greatly simplified, the manufacturing cost is greatly reduced, and the energy is not saved. In order to achieve partial energy regulation, a plurality of compressors without energy regulating devices are arranged in a refrigeration system, and limited energy regulation is achieved through a partial shutdown method. After the multi-machine head is adopted, the grading energy adjustment can be realized, the reliability of the machine set is improved, but the failure rate and maintenance management workload of the machine set are increased, and the cost is increased.
In order to solve the problems, the invention provides a novel refrigeration compressor which does not adopt a capacity adjusting piston and has the frequency conversion and energy saving functions.
Disclosure of Invention
1. Technical problem to be solved
The invention aims at the defects existing in the prior art, and particularly provides a novel refrigeration compressor, which solves the problems of complex structure caused by the fact that the refrigeration load adjustment of the existing refrigeration compressor is realized through a capacity adjustment piston, and simultaneously solves the problems of higher production cost and higher energy consumption.
2. Technical proposal
In order to solve the technical problems, the invention provides a novel refrigeration compressor, which comprises a compressor shell, a compressor screw and a permanent magnet motor, wherein the compressor screw and the permanent magnet motor are arranged in the compressor shell;
the permanent magnet motor is used for driving the compressor screw to rotate; the output power of the refrigeration compressor can be regulated by controlling the rotating speed of the permanent magnet motor; an air inlet is formed in one end, close to the permanent magnet motor, of the compressor shell, and an air outlet is formed in one end, close to the compressor screw, of the compressor shell; a precise filter screen is also arranged between the air inlet and the permanent magnet motor, and can be used for filtering metal scraps to protect the permanent magnet motor.
Wherein the novel refrigeration compressor further comprises an oil filter which is arranged on the compressor shell and is close to the position of the compressor screw rod;
the oil filter can be used for filtering metal scraps in oil liquid to protect the permanent magnet motor.
The compressor shell comprises a motor installation shell and a screw installation shell;
the motor mounting shell is used for fixedly mounting the permanent magnet motor;
the screw mounting shell is used for fixedly mounting the compressor screw;
the motor installation shell is fixedly connected with the screw installation shell through a screw.
Wherein, the air inlet sets up at motor installation casing tip, and the precision filter screen cover is established at motor installation casing tip.
Wherein, the precise filter screen is in a cylinder shape, and at least one layer of metal filter screen is welded on the side wall of the cylinder shape.
Wherein, motor installation casing and screw rod installation casing bottom all are equipped with the fixed foot support, and the fixed foot support is used for refrigerating compressor's fixed mounting.
The compressor screw rod comprises a male screw rod and a female screw rod, and the permanent magnet motor is used for driving the male screw rod to rotate.
Wherein, the permanent magnet motor rotation speed is controlled by a PID controller.
3. Advantageous effects
Compared with the prior art, the refrigerating compressor thoroughly removes the component of the capacity adjusting piston, ensures the normal operation and the frequency conversion effect of the compressor through the arrangement of the permanent magnet motor, can realize the real frequency conversion effect while simplifying the structure of the whole compressor, reducing the volume and the production and use cost, and ensures that the input power is consistent with the output power, thereby playing the role of saving energy.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial cross-sectional view 1 of the present invention;
FIG. 3 is a partial cross-sectional view 2 of the present invention;
FIG. 4 is a perspective view of a precision filter screen of the present invention;
in the figure:
1 is a compressor housing; 2 is a compressor screw; 3 is a permanent magnet motor;
11 is an air inlet; 12 is an exhaust port; 13 is an oil filter; 14 is a precise filter screen; 15 is a motor installation shell; 16 is a screw mounting housing; and 17 is a fixed foot support.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the novel refrigeration compressor of the present embodiment includes a compressor housing 1, a compressor screw 2 and a permanent magnet motor 3 provided in the compressor housing 1; the permanent magnet motor 3 is used for driving the compressor screw rod 2 to rotate; the output power of the refrigeration compressor can be regulated by controlling the rotating speed of the permanent magnet motor 3; an air inlet 11 is formed in one end, close to the permanent magnet motor 3, of the compressor shell 1, and an air outlet 12 is formed in one end, close to the compressor screw 2, of the compressor shell 1; a precise filter screen 14 is also arranged between the air inlet 11 and the permanent magnet motor 3, and the precise filter screen 14 can be used for filtering metal scraps to protect the permanent magnet motor 3.
The conventional refrigeration compressor generally further comprises a capacity adjusting piston, which is one of core components of the refrigeration compressor, and is arranged by combining the capacity adjusting piston with a bypass valve and other structures, so that the effect of adjusting the output power of the refrigeration compressor can be achieved, for example, when the refrigeration compressor is started, transition from small load to large load is needed, after the refrigeration compressor is cooled to a certain temperature, the constant temperature is needed, the capacity adjusting piston is also adjusted, so that the load is needed to be reduced, the refrigeration effect is reduced to maintain a certain power, but in the whole adjustment process, the output power of a motor is not reduced, the motor is at a constant rotating speed, namely, the input power is not changed greatly, therefore, the energy consumption in the whole process is higher, the capacity adjusting piston belongs to a vulnerable part, the replacement frequency is higher, and the production and use cost can be further improved.
Therefore, based on the above-mentioned problem, the refrigerating compressor of this embodiment thoroughly removes the component of appearance adjustment piston, can also guarantee the normal work and the frequency conversion effect of compressor simultaneously, can be when simplifying whole compressor structure, when reducing production use cost, realize real frequency conversion effect, make input power unanimous with output power to play energy-conserving effect.
And because the component of the capacity adjusting piston is removed, the whole structure of the compressor can be further simplified, and meanwhile, the compressor screw 2 does not need to be matched with the capacity adjusting piston to design a longer screw working length, so that the volume of the whole compressor can be further reduced, the whole structure is simplified, and the cost is reduced.
Further, the novel refrigeration compressor of the present embodiment further includes an oil filter 13, the oil filter 13 being disposed on the compressor housing 1 at a position close to the compressor screw 2; meanwhile, because the relation of the permanent magnet motor is adopted, metal scraps are easier to adsorb, so that the permanent magnet motor fails, the whole compressor has higher requirement on filtration, the oil filter 13 is used for filtering the metal scraps in oil to protect the permanent magnet motor 3, the precise filter screen 14 is cylindrical, at least one layer of metal filter screen is welded on the cylindrical side wall, the mesh number of the metal filter screen is higher, and meanwhile, the metal filter screen has higher structural strength, and can play a long-time and effective filtering effect.
In the present embodiment, the compressor housing 1 includes a motor mounting housing 15 and a screw mounting housing 16; the motor mounting shell 15 is used for fixedly mounting the permanent magnet motor 3; the screw mounting housing 16 is used for the fixed mounting of the compressor screw 2; the motor mounting housing 15 and the screw mounting housing 16 are fixed by screw connection.
As shown in fig. 1, the air inlet 11 is disposed at the end of the motor mounting housing 15, the precise filter 14 is sleeved at the end of the motor mounting housing 15, and a sealing gasket is further disposed between the precise filter 14 and the motor mounting housing 15.
The bottoms of the motor installation shell 15 and the screw installation shell 16 are provided with a fixed foot support 17, and the fixed foot support 17 is used for the fixed installation of the refrigeration compressor.
The compressor screw rod 2 comprises a male screw rod and a female screw rod, the permanent magnet motor 3 is used for driving the male screw rod to rotate, and the rotating speed of the permanent magnet motor 3 is controlled by the PID controller.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (8)
1. A novel refrigeration compressor, which is characterized by comprising a compressor shell (1), and a compressor screw (2) and a permanent magnet motor (3) which are arranged in the compressor shell (1);
the permanent magnet motor (3) is used for driving the compressor screw (2) to rotate;
the output power of the refrigeration compressor can be regulated by controlling the rotating speed of the permanent magnet motor (3);
an air inlet (11) is formed in one end, close to the permanent magnet motor (3), of the compressor shell (1), and an air outlet (12) is formed in one end, close to the compressor screw (2), of the compressor shell (1);
a precise filter screen (14) is further arranged between the air inlet (11) and the permanent magnet motor (3), and the precise filter screen (14) can be used for filtering metal scraps to protect the permanent magnet motor (3).
2. A new refrigeration compressor according to claim 1, characterized in that it further comprises an oil filter (13), said oil filter (13) being arranged on the compressor housing (1) in a position close to the compressor screw (2);
the oil filter (13) can be used for filtering metal scraps in oil to protect the permanent magnet motor (3).
3. A new refrigeration compressor as set forth in claim 2, characterized in that said compressor housing (1) comprises a motor-mounted housing (15) and a screw-mounted housing (16);
the motor installation shell (15) is used for fixedly installing the permanent magnet motor (3);
the screw mounting shell (16) is used for fixedly mounting the compressor screw (2);
the motor installation shell (15) is fixedly connected with the screw installation shell (16) through a screw.
4. A novel refrigeration compressor according to claim 3, wherein said air inlet (11) is provided at an end of said motor mounting housing (15), and said fine filter (14) is fitted over said end of said motor mounting housing (15).
5. A new refrigeration compressor as set forth in claim 1, characterized in that said precision filter screen (14) is cylindrical, the cylindrical side wall being welded with at least one layer of metal filter screen.
6. A novel refrigeration compressor according to claim 3, characterized in that the motor mounting housing (15) and the screw mounting housing (16) are provided with a fixing foot support (17) at the bottom, said fixing foot support (17) being used for the fixed mounting of the refrigeration compressor.
7. A new refrigeration compressor as set forth in claim 5, characterized in that said compressor screw (2) comprises a male screw and a female screw, said permanent magnet motor (3) being adapted to drive the male screw in rotation.
8. A new refrigeration compressor as set forth in claim 1, characterized in that the speed of the permanent magnet motor (3) is controlled by a PID controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310739223.9A CN116538087A (en) | 2023-06-21 | 2023-06-21 | Novel refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310739223.9A CN116538087A (en) | 2023-06-21 | 2023-06-21 | Novel refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116538087A true CN116538087A (en) | 2023-08-04 |
Family
ID=87449017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310739223.9A Pending CN116538087A (en) | 2023-06-21 | 2023-06-21 | Novel refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116538087A (en) |
-
2023
- 2023-06-21 CN CN202310739223.9A patent/CN116538087A/en active Pending
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| PB01 | Publication | ||
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