CN215949830U - Constant temperature air inlet integrated permanent magnet screw compressor - Google Patents
Constant temperature air inlet integrated permanent magnet screw compressor Download PDFInfo
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- CN215949830U CN215949830U CN202122122597.5U CN202122122597U CN215949830U CN 215949830 U CN215949830 U CN 215949830U CN 202122122597 U CN202122122597 U CN 202122122597U CN 215949830 U CN215949830 U CN 215949830U
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Abstract
The utility model discloses a constant-temperature air inlet integrated permanent magnet screw compressor, and relates to the technical field of compressors. The air compressor comprises a spiral host, a permanent magnet motor, an air inlet system, a temperature detection control system and a control system, wherein the spiral host is used for compressing air; the permanent magnet motor is in power connection with the spiral main machine; the air inlet system comprises an air filter, an air inlet guide pipe and a three-way air inlet valve; the temperature detection control system comprises an air inlet temperature sensor and an air outlet temperature sensor; the control system comprises a variable frequency control system and a PLC controller. The utility model adopts constant temperature air intake and frequency conversion control; the adaptive environment and the working condition range are wide; the fluctuation of the exhaust temperature of the unit can be effectively controlled, so that the unit can be kept to operate at the same dew point temperature in any reasonable working condition environment, and the oil product emulsification of the compressor under the conditions of frequent start-stop or low-temperature operation is prevented; the reasonable frequency conversion control system can prolong the service life of the compressor unit, and ensure the quality and reliability of the compressor unit.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a constant-temperature air inlet integrated permanent magnet screw compressor.
Background
The working condition and environment of the compressor are complex, and various problems of oil emulsification and the like occur in the operation process of a plurality of compressors due to the reasons of 0-45 DEG air inlet temperature range, local humidity difference, temperature change in different seasons, improper use of customers and the like, so that resource waste and environmental pollution are caused to be problems. Nowadays, people in society gradually realize the influence of environmental pollution on life, and the nation also promotes and advocates environmental protection and energy conservation. The traditional compressor industry adopts the air-cooled permanent magnet motor to drive, and the efficiency is higher than that of the traditional three-phase asynchronous motor, and the energy consumption and the noise are relatively higher. Oil emulsification can cause the problems of faults of internal parts of the compressor, abnormal shutdown and abnormal noise of the temperature of the engine body, and the like, although every manufacturer actively seeks an oil emulsification solution, such as controlling the oil temperature through temperature control valves of different models or directly controlling the oil temperature through a variable frequency fan, the actual use condition of a user is often ignored, and troubles are added to customers and after-sales services. However, even if the temperature control valve is of various types, the problem of oil emulsification of each compressor cannot be effectively controlled, the problem of oil emulsification still cannot be thoroughly solved, and meanwhile, negative influences are brought to stable operation and reliability of the compressor.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a constant-temperature air inlet integrated permanent magnet screw compressor to solve the problems.
In order to achieve the above object, the present invention provides a constant temperature air intake integrated permanent magnet screw compressor, comprising:
the spiral main machine is used for compressing air; one end of the spiral main machine is provided with an axial air inlet end, and the other end of the spiral main machine is provided with an air outlet; the side wall of the spiral main machine is provided with an air supply duct;
the permanent magnet motor is in power connection with the spiral main machine; the shell of the permanent magnet motor is wrapped with a heat exchange tube; the air inlet end of the heat exchange pipe is connected with a main air inlet pipe, and the air outlet end of the heat exchange pipe is communicated with the axial air inlet end of the spiral main machine;
an air intake system comprising an air filter, an air intake conduit, and a three-way air intake valve; the air filter is connected with an air inlet guide pipe, and the air inlet guide pipe is connected with one end port of the three-way air inlet valve; the other two ports of the three-way air inlet valve are respectively connected with the main air inlet pipe and the air supply conduit; the air supply catheter is provided with an electromagnetic valve;
the temperature detection control system comprises an air inlet temperature sensor arranged on the heat exchange pipe and an air outlet temperature sensor arranged at an air outlet of the spiral main machine;
and the control system comprises a PLC (programmable logic controller), and the PLC is electrically connected with the air inlet temperature sensor, the air outlet temperature sensor and the electromagnetic valve.
Further, the cooling system comprises a cooler and a water pump; a cooling liquid diversion cavity is arranged in the shell of the permanent magnet motor; the liquid inlet of the cooling liquid diversion cavity is connected with the liquid outlet pipeline of the cooler; the liquid outlet of the diversion cavity is connected with the liquid inlet pipeline of the water pump; and the liquid outlet of the water pump is connected with the liquid inlet pipeline of the cooler.
Further, the water pump is in power connection with the spiral main engine.
The centrifugal fan is in power connection with the permanent magnet motor; the air inlet end of the centrifugal fan is provided with a filter screen; an air guide cover is arranged at the air outlet end of the centrifugal fan; the wind scooper is fixedly connected with the cooler.
Furthermore, a radiating fin is arranged outside the shell of the permanent magnet motor.
Furthermore, the number of the heat exchange tubes is two, and the heat exchange tubes are symmetrically arranged.
Furthermore, the control system also comprises a variable frequency control system which is electrically connected with the permanent magnet motor and the PLC.
The utility model adopts constant temperature air intake and frequency conversion control. Constant temperature air intake ensures that air sucked by the compressor in any state is kept at a certain constant temperature, and can effectively control the fluctuation of the exhaust temperature of the unit, so that the unit can be kept to operate at the same dew point temperature in any reasonable working condition environment, and oil emulsification of the compressor under the conditions of frequent start-stop or low-temperature operation is prevented. Constant temperature intake benefits: the adaptive environment and the working condition range are wide; the oil emulsification of the compressor caused by the type selection error of a client can be effectively reduced; the exhaust temperature of the compressor unit can be effectively controlled; reduce the emulsification of oil products caused by high-temperature alarm shutdown or low-temperature operation. The variable frequency control can lead the air quantity and the power consumption of the compressor to be changed linearly, and the power consumption is relatively greatly reduced; the reasonable frequency conversion control system can prolong the service life of the compressor unit, and ensure the quality and reliability of the compressor unit. The frequency conversion control adaptability is strong, the starting current is small, the energy consumption is saved, the rotating speed can be automatically adjusted according to the heat requirement of the system, the pressure of a pipe network can be automatically adjusted according to the air consumption of a client, and the service life of a compressor unit can be prolonged.
Drawings
Fig. 1 is a main view of a constant temperature air intake integrated permanent magnet screw compressor according to the present invention.
Fig. 2 is a top view of the constant temperature air intake integrated permanent magnet screw compressor of the present invention.
Fig. 3 is a first perspective view of the constant temperature air intake integrated permanent magnet screw compressor of the present invention.
Fig. 4 is a second perspective view of the constant temperature air intake integrated permanent magnet screw compressor of the present invention.
Wherein, 1-control system; 2-an air intake system; 3-a centrifugal fan; 4-a permanent magnet motor; 5-a spiral host; 6, a water pump; 7-a cooler; 8-a temperature detection control system; 11-a variable frequency control system; 12-a PLC controller; 21-an air filter; 22-an air intake conduit; 23-a three-way air inlet valve; 31-a filter screen; 32-a wind scooper; 41-heat exchange tubes; 42-main intake pipe; 51-axial air inlet end; 52-air supply duct; 53-air outlet; 54-a solenoid valve; 81-intake air temperature sensor; 82-outlet temperature sensor.
Detailed Description
To achieve the above objects and advantages, the present invention provides a technical means and a structure thereof, which are described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the present invention provides a constant temperature air intake integrated permanent magnet screw compressor, comprising:
the spiral main machine 5 is used for compressing air; one end of the spiral main machine 5 is provided with an axial air inlet end 51, and the other end is provided with an air outlet 53; the side wall of the spiral main machine is provided with an air supply duct 52; the air supply duct 52 is provided with an electromagnetic valve 54;
the permanent magnet motor 4 is in power connection with the spiral main machine 5; the shell of the permanent magnet motor 4 is wrapped with two symmetrically arranged heat exchange tubes 41; the air inlet end of the heat exchange pipe 41 is connected with a main air inlet pipe 42, and the air outlet end of the heat exchange pipe 41 is communicated with the axial air inlet end 51 of the spiral main machine 5; the permanent magnet motor 4 is made of an energy-saving rare earth permanent magnet material, and the spiral main machine 5 and the permanent magnet motor 4 are aluminum alloy machine body shells, so that the spiral main machine is rust-proof, corrosion-resistant, light in weight and good in heat dissipation performance; the spiral main machine 5 and the permanent magnet motor 4 are connected by adopting coaxial Morse taper, the coaxiality is completely ensured, the transmission efficiency is higher, and the complicated connection mode of the original belt pulley or gear coupling is omitted. The spiral main engine 5 adopts three-channel air inlet and is respectively positioned at the top and the double sides of the spiral main engine 5. The air inlet area is large, air is simultaneously fed in the axial direction and the radial direction, airflow pulsation is reduced, and air suction noise is reduced.
An air intake system 2, the air intake system 2 including an air filter 21, an intake duct 22, and a three-way intake valve 23; the air filter 21 is connected with an air inlet conduit 22, and the air inlet conduit 22 is connected with one end port of a three-way air inlet valve 23; the other two ports of the three-way air inlet valve 23 are respectively connected with the main air inlet pipe 42 and the air supply conduit 52;
the temperature detection control system 8 comprises an air inlet temperature sensor 81 arranged on the heat exchange tube 41 and an air outlet temperature sensor 82 arranged at the air outlet 53 of the spiral main machine 5;
control system 1, control system 1 includes frequency conversion control system 11 and PLC controller 12, frequency conversion control system 11 is connected with permanent-magnet machine 4, PLC controller 12 electricity, PLC controller 12 is connected with temperature sensor 81, the temperature sensor 82 of giving vent to anger, solenoid valve 54 electricity.
Under normal conditions, air enters the heat exchange tube 41 on the shell of the permanent magnet motor 4 through the air filter 21, the air inlet duct 22, the three-way air inlet valve 23 and the main air inlet pipe 42 to be heated or cooled, and then enters the spiral main machine 5 to be compressed. The temperature difference signals detected by the inlet air temperature sensor 81 and the outlet air temperature sensor 82 are sent to the PLC controller 12, and then the signals are transmitted to the electromagnetic valve 54, so as to open or close the air supply duct 52 for temperature control adjustment.
In another embodiment, a cooling system is also included, which comprises a cooler 7 and a water pump 6; a cooling liquid diversion cavity is arranged in the shell of the permanent magnet motor 4; the liquid inlet of the cooling liquid diversion cavity is connected with the liquid outlet pipeline of the cooler 7; the liquid outlet of the diversion cavity is connected with a liquid inlet pipeline of the water pump 6; and a liquid outlet of the water pump 6 is connected with a liquid inlet pipeline of the cooler 7. The water pump 6 is in power connection with the screw main machine 5.
In another embodiment, the device further comprises a centrifugal fan 3, wherein the centrifugal fan 3 is in power connection with a permanent magnet motor 4; the centrifugal fan 3 sucks air through the end face; a filter screen 31 is arranged at the air inlet end of the centrifugal fan 3; an air guide cover 32 is arranged at the air outlet end of the centrifugal fan 3; the wind scooper 32 is fixedly connected with the cooler 7. A diffusion-type air guide cover 32 is arranged between the cooler 7 and the centrifugal fan 3, the air quantity generated by the centrifugal fan 3 is conveyed to the cooler 7 through the air guide cover 32, the cooler 7 is fully cooled, the cooler 7 is used for cooling liquid, the periphery of the cooler is protected by a protective cover, the protective cover adopts an upward inclined hole design, the airflow pulsation can be effectively reduced, the noise is reduced, and meanwhile the characteristic of the airflow controls the outlet direction of hot air. The cooling liquid is an antifreezing liquid, is suitable for various complex working conditions, and has the advantages of low freezing point, high boiling point, corrosion resistance, scale prevention, no foam and the like. The cooled liquid enters a cooling liquid diversion cavity in the shell of the permanent magnet motor 4 through a pipeline to cool the permanent magnet motor 4 and air.
In another embodiment, the exterior of the housing of the permanent magnet motor 4 is provided with cooling fins. The utility model is mixed cooling, and cools mutually while self-cooling, and has high cooling efficiency. The permanent magnet motor 4 can be cooled by the heat sink itself, by a cooling liquid, or by air passing through the permanent magnet motor 4. The air passing through the permanent magnet motor 4 also has the three cooling or heating modes described above. In the cooling mode, when the temperature of the air passing through the permanent magnet motor 4 is higher than the temperature of the permanent magnet motor 4 and the temperature of the cooling liquid, the air is in a cooling state; in the heating mode, when the temperature of the air passing through the permanent magnet motor 4 is lower than the temperature of the permanent magnet motor 4 and the temperature of the cooling liquid, the air is in a heating state; when the intake air temperature is not reached in either of the above two modes, the mixture intake is performed by the temperature of the natural state air sucked by the air-replenishing duct 52. Meanwhile, the cooling or heating mode of the permanent magnet motor 4 is the same as the air cooling or heating mode principle, and is not described again.
The advantage of constant temperature integral type permanent magnetism helical-lobe compressor structure of admitting air: firstly, no matter the ambient temperature of the compressor during operation, the temperature of the air entering the screw host 5 for compression can be always kept at a certain constant temperature, the reliability of the operation of the compressor is improved, and the troubles of customers and after sales are reduced; secondly, the traditional axial flow fan is changed into the centrifugal fan 3, so that the pressure drop is reduced, the noise is reduced, and the motors used by the traditional independent fan are also reduced; thirdly, change the traditional 6 structures of water pump by independent motor drive into directly by the drive of permanent-magnet machine 4, reduced the use of sealing member, reduced the risk of oil leak, reduced motor quantity simultaneously. Fourthly, the screw main machine 5, the centrifugal fan 3 and the water pump 6 are directly or indirectly driven by the permanent magnet motor 4, and the frequency conversion control system 11 can change the working frequency of the permanent magnet motor 4 to control the rotating speed of the permanent magnet motor 4, so that the rotating speeds of the centrifugal fan 3 and the water pump 6 are changed. Not only can save energy, but also can prolong the service life of the compressor.
The utility model is the most novel structure at present, is a few constant-temperature air inlet control structures, reduces the using quantity of bearings and motors, simultaneously realizes high integration and modularization, and can be controlled and networked through motor integration and the PLC 12, thereby saving energy, having low noise and high reliability, reducing the air flow sound of air inlet by two paths of air inlet, having continuous and stable air inlet, and meeting the requirements of environmental protection and energy saving.
The utility model has low energy consumption and high transmission efficiency, does not need the traditional gear box to adjust the rotating speed of the screw main machine 5, saves the design time and the manufacturing time and improves the economic benefit. The integrated design makes it small, and the fault rate is low.
The above description is only a preferred embodiment of the present invention, and not all embodiments, and all structural changes made under the teaching of the present invention should be understood as belonging to the protection scope of the present invention.
Claims (7)
1. The utility model provides a constant temperature integral type permanent magnetism helical-lobe compressor that admits air which characterized in that includes:
the spiral main machine is used for compressing air; one end of the spiral main machine is provided with an axial air inlet end, and the other end of the spiral main machine is provided with an air outlet; the side wall of the spiral main machine is provided with an air supply duct;
the permanent magnet motor is in power connection with the spiral main machine; the shell of the permanent magnet motor is wrapped with a heat exchange tube; the air inlet end of the heat exchange pipe is connected with a main air inlet pipe, and the air outlet end of the heat exchange pipe is communicated with the axial air inlet end of the spiral main machine;
an air intake system comprising an air filter, an air intake conduit, and a three-way air intake valve; the air filter is connected with an air inlet guide pipe, and the air inlet guide pipe is connected with one end port of the three-way air inlet valve; the other two ports of the three-way air inlet valve are respectively connected with the main air inlet pipe and the air supply conduit; the air supply catheter is provided with an electromagnetic valve;
the temperature detection control system comprises an air inlet temperature sensor arranged on the heat exchange pipe and an air outlet temperature sensor arranged at an air outlet of the spiral main machine;
and the control system comprises a PLC (programmable logic controller), and the PLC is electrically connected with the air inlet temperature sensor, the air outlet temperature sensor and the electromagnetic valve.
2. The constant-temperature air-intake integrated permanent-magnet screw compressor according to claim 1, further comprising a cooling system, wherein the cooling system comprises a cooler and a water pump; a cooling liquid diversion cavity is arranged in the shell of the permanent magnet motor; the liquid inlet of the cooling liquid diversion cavity is connected with the liquid outlet pipeline of the cooler; the liquid outlet of the diversion cavity is connected with the liquid inlet pipeline of the water pump; and the liquid outlet of the water pump is connected with the liquid inlet pipeline of the cooler.
3. The constant-temperature air-intake integrated permanent magnet screw compressor according to claim 2, wherein the water pump is in power connection with the screw main machine.
4. A constant temperature air intake integrated permanent magnet screw compressor as claimed in claim 1, 2 or 3, further comprising a centrifugal fan, wherein the centrifugal fan is in power connection with the permanent magnet motor; the air inlet end of the centrifugal fan is provided with a filter screen; an air guide cover is arranged at the air outlet end of the centrifugal fan; the wind scooper is fixedly connected with the cooler.
5. The permanent magnet screw compressor of claim 1, wherein the permanent magnet motor has heat sink fins disposed on the outside of the housing.
6. The permanent magnet screw compressor of claim 1, wherein the number of the heat exchange tubes is two, and the two heat exchange tubes are symmetrically arranged.
7. The constant-temperature air-intake integrated permanent magnet screw compressor according to claim 1, wherein the control system further comprises a variable-frequency control system, and the variable-frequency control system is electrically connected with the permanent magnet motor and the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122122597.5U CN215949830U (en) | 2021-09-03 | 2021-09-03 | Constant temperature air inlet integrated permanent magnet screw compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122122597.5U CN215949830U (en) | 2021-09-03 | 2021-09-03 | Constant temperature air inlet integrated permanent magnet screw compressor |
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| CN215949830U true CN215949830U (en) | 2022-03-04 |
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| CN202122122597.5U Active CN215949830U (en) | 2021-09-03 | 2021-09-03 | Constant temperature air inlet integrated permanent magnet screw compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108497A (en) * | 2023-10-24 | 2023-11-24 | 江苏泰丰泵业有限公司 | Quick-connection screw pump |
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2021
- 2021-09-03 CN CN202122122597.5U patent/CN215949830U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108497A (en) * | 2023-10-24 | 2023-11-24 | 江苏泰丰泵业有限公司 | Quick-connection screw pump |
| CN117108497B (en) * | 2023-10-24 | 2024-02-06 | 江苏泰丰泵业有限公司 | Quick-connection screw pump |
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