CN117536865A - Permanent magnet variable-frequency two-stage compression screw air compressor - Google Patents
Permanent magnet variable-frequency two-stage compression screw air compressor Download PDFInfo
- Publication number
- CN117536865A CN117536865A CN202311761936.1A CN202311761936A CN117536865A CN 117536865 A CN117536865 A CN 117536865A CN 202311761936 A CN202311761936 A CN 202311761936A CN 117536865 A CN117536865 A CN 117536865A
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- push plate
- water
- water tank
- tank
- plate
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- 230000006835 compression Effects 0.000 title claims abstract description 25
- 238000007906 compression Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 141
- 238000004321 preservation Methods 0.000 claims abstract description 45
- 238000005192 partition Methods 0.000 claims description 16
- 239000010705 motor oil Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 240000008574 Capsicum frutescens Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process 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
- 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
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention relates to the field of air compressors, in particular to a permanent magnet variable-frequency two-stage compression screw air compressor. Comprises a base arranged front and back; the base is provided with an annular water tank with a horizontal axis; the water tank is fixed on the base; an air compressor body is arranged at the center of the water tank; the water tank is filled with heat-insulating water; an exchange tube is arranged in the water tank; the exchange tube is spiral; one end of the exchange tube is communicated with an air outlet tube of the air compressor body; a circulating device is arranged between the water tank and the base. The circulating device enables the heat preservation water in the water tank to circulate and flow, and enables the direction of the heat preservation water flow to be opposite to the spiral direction of the exchange tube, so that the heat preservation water in the water tank is fully contacted with the exchange tube, flows and is mixed to be uniform in temperature, and the engine oil viscosity of the air compressor body is guaranteed to be the same.
Description
Technical Field
The invention relates to the field of air compressors, in particular to a permanent magnet variable-frequency two-stage compression screw air compressor.
Background
An air compressor is a device for compressing a gas. The screw compressor, also called screw compressor, is divided into a single screw compressor and a twin screw compressor, and compared with single-stage compression, two-stage compression approaches isothermal compression which saves most power, and in principle, two-stage compression saves 10-12% of energy compared with single-stage compression. The two-stage compression main machine is adopted, namely, two groups of screw rotors with different sizes are adopted, so that reasonable pressure distribution is realized, and the compression ratio of each compression is reduced. The low compression ratio also has two particular advantages: one is to reduce internal leakage and improve volumetric efficiency; the other is that the load of the bearing is greatly reduced, the service life of the bearing is prolonged, and the service life of the host is prolonged.
In the prior art, if the bulletin number is CN218669824U, the name is a Chinese patent of high-efficient energy-saving double-stage screw air compressor, the public technical scheme records that through starting the circulating pump, the water in the water storage tank is taken out through the inlet tube, make water carry back into the water storage tank from the cooling pipe under the pressurization effect of circulating pump, at this moment, the heat preservation cover can prevent that the temperature around the outlet duct from giving off in a large number, the rivers in the cooling pipe bring higher temperature into the water storage tank for the temperature in the water storage tank rises, can make the air compressor body avoid the surrounding temperature too low under the chilly environment. However, in this scheme, the water storage box wraps up the air compressor machine body, and the rivers in the cooling tube bring higher temperature into the water storage box in, and the water temperature of water storage box is inhomogeneous, and the temperature exchange is slower and make the viscosity of engine oil in the organism different in some places probably can appear to influence the availability factor of air compressor machine, serious still can influence the life-span of air compressor machine.
Disclosure of Invention
The invention provides a permanent magnet variable-frequency two-stage compression screw air compressor, which aims to solve the problems.
The invention relates to a permanent magnet variable-frequency two-stage compression screw air compressor, which adopts the following technical scheme: a permanent magnet variable-frequency two-stage compression screw air compressor comprises a base arranged front and back; the base is provided with an annular water tank with a horizontal axis; the water tank is fixed on the base; an air compressor body is arranged at the center of the water tank; the water tank is filled with heat-insulating water; an exchange tube is arranged in the water tank; the exchange tube is spiral; one end of the exchange tube is communicated with an air outlet tube of the air compressor body; a circulating device is arranged between the water tank and the base; the circulating device is used for enabling the heat preservation water in the water tank to circulate and flow, and enabling the direction of the heat preservation water flow to be opposite to the spiral direction of the exchange tube; so that the heat-insulating water in the water tank is fully contacted with the exchange tube, flows and is mixed to be uniform in temperature, and the viscosity of engine oil of the air compressor body is ensured to be the same.
Further, the circulating device comprises a circulating box, a unidirectional component and a driving component; the circulating box is fixed on the outer side wall of the water tank and is positioned at the lower end of the water tank; the lower end of the water tank is communicated with the upper end of the circulating tank; a partition board is arranged in the circulation box; the upper end of the partition plate is fixedly connected with the inner wall of the water tank, and the lower end of the partition plate is fixedly connected with the bottom wall of the circulation tank; the partition plate divides the water tank into a C shape; the separator separates the circulation tank into a first tank and a second tank; a first push plate is slidably arranged in the first box; a second push plate is slidably arranged in the second box; the driving assembly is used for driving the first push plate to move upwards and the second push plate to move downwards, and driving the first push plate to move downwards and the second push plate to move upwards;
the one-way assembly is used for pushing heat preservation water above the first push plate upwards when the first push plate moves upwards, so that water in the water tank flows from the first tank to the second tank, and heat preservation water below the second push plate is pumped into the position below the first push plate; simultaneously, the second push plate moves downwards to pump the heat preservation water above the second push plate downwards, the heat preservation water in the auxiliary water tank flows to the second tank from the first tank, and the heat preservation water below the second push plate is extruded below the first push plate, so that the circulation flow of the heat preservation water in the water tank is realized.
Further, the one-way assembly comprises a first one-way valve, a second one-way valve and a third one-way valve;
the first one-way valve is arranged on the first push plate and is used for closing when the first push plate moves upwards to prevent heat preservation water on the upper side and the lower side of the first push plate from flowing, and opening when the first push plate moves downwards to enable the heat preservation water below the first push plate to be extruded above the first push plate;
the second one-way valve is arranged on the second push plate and is used for closing when the second push plate moves downwards to prevent heat preservation water on the upper side and the lower side of the second push plate from flowing, and opening when the second push plate moves upwards to enable the heat preservation water above the second push plate to be extruded below the second push plate;
the third one-way valve is arranged at the lower end of the partition board and used for being opened when the first push plate moves upwards and the second push plate moves downwards so as to push the heat preservation water below the second push plate to the position below the first push plate; the first pushing plate moves downwards and the second pushing plate moves upwards to be closed, so that heat preservation water below the first pushing plate is prevented from flowing back to below the second pushing plate.
Further, the drive assembly includes a mounting case; the installation box is fixed at the lower end of the circulation box; the first top plate and the second top plate are slidably arranged in the mounting box; the first top plate is arranged below the first push plate and is slidably arranged in the mounting box; the first top plate is fixedly connected with the first sliding plate through a first vertical rod; the second top plate is arranged below the second push plate and is slidably arranged in the mounting box; the second top plate is fixedly connected with the second sliding plate through a second vertical rod;
the lower end of the mounting box is rotatably provided with a driving rod; the driving rod is arranged below the first top plate and the second top plate; the driving rod is fixed with a first cam and a second cam; the convex portions of the first cam and the second cam are staggered to drive the first top plate and the second top plate to alternately move up and down.
Further, a driving motor is fixed on the mounting box; the output shaft of the driving motor is fixedly connected with the driving rod.
Further, one end of the exchange tube, which is far away from the air outlet pipe of the air compressor, is connected with a connecting tube; an electromagnetic valve is arranged at the joint of the exchange pipe and the air outlet pipe; the end part of the air outlet pipe is connected with a standby pipe. When the temperature of the outside is higher, the electromagnetic valve prevents the exchange tube from being communicated with the air outlet tube, compressed air is output through the standby tube, and the air compressor body is prevented from being too high in temperature. When external temperature is lower, the solenoid valve makes exchange tube and outlet duct intercommunication for the higher gaseous entering exchange tube of temperature through the outlet duct, with the warm water heating in the water tank, the viscosity of the engine oil of assurance air compressor machine body is the same.
The beneficial effects of the invention are as follows: the circulating device enables the heat preservation water in the water tank to circulate and flow, and enables the direction of the heat preservation water flow to be opposite to the spiral direction of the exchange tube, so that the heat preservation water in the water tank is fully contacted with the exchange tube, flows and is mixed to be uniform in temperature, and the engine oil viscosity of the air compressor body is guaranteed to be the same.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a permanent magnet variable frequency two-stage compression screw air compressor of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
FIG. 3 is a side view of an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
FIG. 5 is another angular cross-sectional view of an embodiment of the present invention;
fig. 6 is a schematic diagram of an air compressor body and an exchange tube according to an embodiment of the present invention.
In the figure: 100. an air compressor body; 110. an air outlet pipe; 200. a base; 300. a water tank; 400. exchange the tube; 410. a connecting pipe; 420. a reserve tube; 510. a circulation box; 511. a partition plate; 512. a first tank; 513. a first push plate; 514. a second tank; 515. a second push plate; 521. a first one-way valve; 522. a second one-way valve; 523. a third one-way valve; 531. a mounting box; 532. a first top plate; 533. a second top plate; 534. a first cam.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout or elements having the same or similar functions. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The features of the invention "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
An embodiment of a permanent magnet variable frequency two-stage compression screw air compressor of the present invention is shown in fig. 1 to 6: a permanent magnet variable frequency two-stage compression screw air compressor comprises a base 200 arranged front and back; the base 200 is provided with an annular water tank 300 with an axis arranged horizontally; the water tank 300 is fixed to the base 200; the air compressor body 100 is installed at the center of the water tank 300; the water tank 300 is filled with heat-insulating water; the water tank 300 is provided therein with a replacement pipe 400; the exchange tube 400 is spiral;
one end of the exchange tube 400 is communicated with the air outlet tube 110 of the air compressor body 100; a circulation device is arranged between the water tank 300 and the base 200;
the circulation device is used for circulating the heat preservation water in the water tank 300 and making the direction of the heat preservation water flow opposite to the spiral direction of the exchange tube 400; so that the heat-insulating water in the water tank 300 is fully contacted with the exchange tube 400, flows and is mixed to be uniform in temperature, and the same viscosity of the engine oil of the air compressor body 100 is ensured. The circulating device comprises a circulating box 510, a unidirectional component and a driving component; the circulation tank 510 is fixed to the outer sidewall of the water tank 300 and is positioned at the lower end of the water tank 300; the lower end of the water tank 300 is communicated with the upper end of the circulation tank 510; a partition 511 is provided in the circulation box 510; the upper end of the partition 511 is fixedly connected with the inner wall of the water tank 300, and the lower end is fixedly connected with the bottom wall of the circulation tank 510; the partition 511 partitions the water tank 300 into a C shape; the partition 511 divides the circulation tank 510 into a first tank 512, a second tank 514; a first push plate 513 is slidably mounted within first housing 512; a second push plate 515 is slidably mounted in the second casing 514;
the driving component is used for driving the first push plate 513 to move upwards and the second push plate 515 to move downwards, and driving the first push plate 513 to move downwards and the second push plate 515 to move upwards; the drive assembly includes a mounting box 531; the installation box 531 is fixed at the lower end of the circulation box 510; a first top plate 532 and a second top plate 533 are slidably mounted in the mounting box 531; a first top plate 532 is provided below the first push plate 513 and slidably mounted within the mounting box 531; the first top plate 532 is fixedly connected with the first sliding plate through a first vertical rod; the second top plate 533 is provided below the second push plate 515 and slidably mounted in the mounting box 531; the second top plate 533 is fixedly connected with the second sliding plate through a second vertical rod;
a driving rod is rotatably arranged at the lower end of the mounting box 531; the driving lever is provided below the first top plate 532 and the second top plate 533; the driving rod is fixed with a first cam 534 and a second cam; the convex portions of the first and second cams 534 and 533 are alternately disposed to drive the first and second top plates 532 and 533 to alternately move up and down. A driving motor is fixed on the mounting box 531; the output shaft of the driving motor is fixedly connected with the driving rod.
The one-way assembly is used to push the insulating water above the first push plate 513 upward as the first push plate 513 moves upward so that water in the water tank 300 flows from the first tank 512 to the second tank 514 and the insulating water below the second push plate 515 is drawn into below the first push plate 513; simultaneously, the second push plate 515 moves downwards to pump the heat preservation water above the second push plate 515 downwards, the heat preservation water in the auxiliary water tank 300 flows from the first tank 512 to the second tank 514, and the heat preservation water below the second push plate 515 is extruded below the first push plate 513, so that the circulation flow of the heat preservation water in the water tank 300 is realized. The one-way assembly includes a first one-way valve 521, a second one-way valve 522, a third one-way valve 523; a first check valve 521 is provided on the first push plate 513 to be closed to prevent the heat preservation water at the upper and lower sides of the first push plate 513 from flowing when the first push plate 513 moves upward and to be opened to allow the heat preservation water under the first push plate 513 to be extruded above the first push plate 513 when the first push plate 513 moves downward; the second check valve 522 is provided on the second push plate 515 and is used for closing when the second push plate 515 moves downwards to prevent the heat preservation water on the upper side and the lower side of the second push plate 515 from flowing, and opening when the second push plate 515 moves upwards to enable the heat preservation water above the second push plate 515 to be extruded below the second push plate 515; the third check valve 523 is arranged at the lower end of the partition 511 and is used for opening when the first push plate 513 moves upwards and the second push plate 515 moves downwards, so that the heat preservation water below the second push plate 515 is pushed to the lower part of the first push plate 513; and closes as the first push plate 513 moves downward and the second push plate 515 moves upward to prevent the heated water below the first push plate 513 from flowing back below the second push plate 515.
In this embodiment, a connecting pipe 410 is connected to one end of the exchange pipe 400 away from the air outlet pipe 110 of the air compressor; a solenoid valve is arranged at the joint of the exchange tube 400 and the air outlet tube 110; the end of the air outlet pipe 110 is connected with a standby pipe 420. The electromagnetic valve is used for preventing the exchange tube 400 from being communicated with the air outlet tube 110 when the external temperature is higher, compressed air is output through the standby tube 420, and the air compressor body 100 is prevented from being excessively high in temperature. When the external temperature is lower, the electromagnetic valve enables the exchange tube 400 to be communicated with the air outlet tube 110, so that the air with higher temperature enters the exchange tube 400 through the air outlet tube 110, the heat-insulating water in the water tank 300 is heated, and the same viscosity of engine oil of the air compressor body 100 is ensured.
In combination with the above embodiment, the use principle and working process of the present invention are as follows: when the air compressor is in use, when the external temperature is higher, the electromagnetic valve prevents the exchange tube 400 from being communicated with the air outlet tube 110, compressed air is output through the standby tube 420, and the air compressor body 100 is prevented from being overhigh in temperature. When the external temperature is low, the electromagnetic valve enables the exchange tube 400 and the air outlet tube 110 to be communicated, so that the air with high temperature enters the exchange tube 400 through the air outlet tube 110, the heat-insulating water in the water tank 300 is heated, the driving motor drives the driving rod to rotate, and the first top plate 532 and the second top plate 533 alternately move up and down through the first cam 534 and the second cam.
When the first push plate 513 moves upward and the second push plate 515 moves downward, the first check valve 521 is closed, the second check valve 522 is opened, the third check valve 523 is opened, and the first push plate 513 moves upward to push the heat preservation water above the first push plate 513 upward, so that the water in the water tank 300 flows from the first tank 512 to the second tank 514, and the heat preservation water below the second push plate 515 is pumped into the lower part of the first push plate 513; meanwhile, the second push plate 515 moves downwards to pump the heat-preserving water above the second push plate 515 downwards, the heat-preserving water in the auxiliary water tank 300 flows from the first tank 512 to the second tank 514, and the heat-preserving water below the second push plate 515 is extruded below the first push plate 513, so that the circulation flow of the heat-preserving water in the water tank 300 is realized, the temperature uniformity of the heat-preserving water in the water tank 300 is promoted, and the same viscosity of engine oil of the air compressor body 100 is ensured.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. A permanent magnet variable frequency two-stage compression screw air compressor is characterized in that: comprises a base (200) arranged front and back; the base (200) is provided with an annular water tank (300) with a horizontally arranged axis; the water tank (300) is fixed on the base (200); an air compressor body (100) is arranged at the center of the water tank (300); the water tank (300) is filled with heat-insulating water; an exchange pipe (400) is arranged in the water tank (300); the exchange tube (400) is spiral; one end of the exchange tube (400) is communicated with an air outlet tube (110) of the air compressor body (100); a circulating device is arranged between the water tank (300) and the base (200); the circulation device is used for circulating the heat preservation water in the water tank (300) and enabling the direction of the heat preservation water to be opposite to the spiral direction of the exchange tube (400).
2. The permanent magnet variable frequency two-stage compression screw air compressor of claim 1, wherein: the circulating device comprises a circulating box (510), a one-way component and a driving component; the circulation box (510) is fixed on the outer side wall of the water tank (300) and is positioned at the lower end of the water tank (300); the lower end of the water tank (300) is communicated with the upper end of the circulating tank (510); a baffle plate (511) is arranged in the circulation box (510); the upper end of the partition plate (511) is fixedly connected with the inner wall of the water tank (300), and the lower end is fixedly connected with the bottom wall of the circulation tank (510); the partition plate (511) divides the water tank (300) into a C shape; the partition plate (511) divides the circulation tank (510) into a first tank (512) and a second tank (514); a first push plate (513) is slidably mounted in the first box (512); a second push plate (515) is slidably mounted in the second box (514); the driving assembly is used for driving the first push plate (513) to move upwards and the second push plate (515) to move downwards, and driving the first push plate (513) to move downwards and the second push plate (515) to move upwards;
the one-way assembly is used for pushing heat preservation water above the first push plate (513) upwards when the first push plate (513) moves upwards, so that water in the water tank (300) flows from the first tank (512) to the second tank (514) and heat preservation water below the second push plate (515) is pumped into the position below the first push plate (513); simultaneously, the second push plate (515) moves downwards to pump the heat preservation water above the second push plate (515) downwards, the heat preservation water in the auxiliary water tank (300) flows from the first tank (512) to the second tank (514), and the heat preservation water below the second push plate (515) is extruded below the first push plate (513).
3. The permanent magnet variable frequency two-stage compression screw air compressor of claim 2, wherein: the one-way assembly comprises a first one-way valve (521), a second one-way valve (522) and a third one-way valve (523);
the first one-way valve (521) is arranged on the first push plate (513) and is used for closing when the first push plate (513) moves upwards to prevent the water on the upper side and the lower side of the first push plate (513) from flowing, and opening when the first push plate (513) moves downwards to enable the heat preservation water below the first push plate (513) to be extruded above the first push plate (513);
the second one-way valve (522) is arranged on the second push plate (515) and is used for closing when the second push plate (515) moves downwards to prevent the water on the upper side and the lower side of the second push plate (515) from flowing, and opening when the second push plate (515) moves upwards to enable the heat preservation water above the second push plate (515) to be extruded below the second push plate (515);
the third one-way valve (523) is arranged at the lower end of the partition plate (511) and is used for opening when the first push plate (513) moves upwards and the second push plate (515) moves downwards so as to push heat preservation water below the second push plate (515) to the position below the first push plate (513); and is closed when the first push plate (513) moves downwards and the second push plate (515) moves upwards, so as to prevent the heat preservation water below the first push plate (513) from flowing back to the lower part of the second push plate (515).
4. A permanent magnet variable frequency two stage compression screw air compressor according to claim 3, wherein: the drive assembly includes a mounting box (531); the mounting box (531) is fixed at the lower end of the circulation box (510); a first top plate (532) and a second top plate (533) are slidably mounted in the mounting box (531); the first top plate (532) is arranged below the first push plate (513) and is slidably arranged in the mounting box (531); the first top plate (532) is fixedly connected with the first sliding plate through a first vertical rod; the second top plate (533) is arranged below the second push plate (515) and is slidably arranged in the mounting box (531); the second top plate (533) is fixedly connected with the second sliding plate through a second vertical rod;
a driving rod is rotatably arranged at the lower end of the mounting box (531); the driving rod is arranged below the first top plate (532) and the second top plate (533); the driving rod is fixed with a first cam (534) and a second cam; the raised portions of the first cam (534) and the second cam are staggered.
5. The permanent magnet variable frequency two-stage compression screw air compressor of claim 4, wherein: a driving motor is fixed on the mounting box (531); the output shaft of the driving motor is fixedly connected with the driving rod.
6. The permanent magnet variable frequency two-stage compression screw air compressor of claim 5, wherein: one end of the exchange tube (400) far away from the air outlet tube (110) of the air compressor is connected with a connecting tube (410); an electromagnetic valve is arranged at the joint of the exchange pipe (400) and the air outlet pipe (110); the end part of the air outlet pipe (110) is connected with a standby pipe (420).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311761936.1A CN117536865A (en) | 2023-12-19 | 2023-12-19 | Permanent magnet variable-frequency two-stage compression screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311761936.1A CN117536865A (en) | 2023-12-19 | 2023-12-19 | Permanent magnet variable-frequency two-stage compression screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117536865A true CN117536865A (en) | 2024-02-09 |
Family
ID=89792036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311761936.1A Pending CN117536865A (en) | 2023-12-19 | 2023-12-19 | Permanent magnet variable-frequency two-stage compression screw air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117536865A (en) |
-
2023
- 2023-12-19 CN CN202311761936.1A patent/CN117536865A/en active Pending
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