CN220748570U - Magnetic suspension centrifugal air compressor - Google Patents
Magnetic suspension centrifugal air compressor Download PDFInfo
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- CN220748570U CN220748570U CN202322024427.2U CN202322024427U CN220748570U CN 220748570 U CN220748570 U CN 220748570U CN 202322024427 U CN202322024427 U CN 202322024427U CN 220748570 U CN220748570 U CN 220748570U
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- 239000000725 suspension Substances 0.000 title claims abstract description 89
- 230000006835 compression Effects 0.000 claims abstract description 91
- 238000007906 compression Methods 0.000 claims abstract description 91
- 238000001816 cooling Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 77
- 238000010992 reflux Methods 0.000 claims description 29
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 239000000110 cooling liquid Substances 0.000 claims description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 17
- 230000002528 anti-freeze Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 238000005339 levitation Methods 0.000 claims description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 230000008676 import Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 239000000498 cooling water Substances 0.000 description 21
- 239000007788 liquid Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 5
- 238000012805 post-processing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000003584 silencer Effects 0.000 description 3
- 230000030279 gene silencing Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of air compression, in particular to a magnetic suspension centrifugal air compressor. In order to prolong the service life of the magnetic suspension centrifugal air compressor, the utility model provides the magnetic suspension centrifugal air compressor which comprises a compression main machine and a post cooler, wherein a cooling inlet of the post cooler is communicated with a secondary exhaust port of the compression main machine through an exhaust pipe, a cooling outlet of the post cooler is connected with an air supply pipe, and a check valve is arranged on the air supply pipe. When the magnetic suspension centrifugal air compressor is used for producing compressed air, the aftercooler can be used for cooling high-temperature compressed air discharged from the secondary air outlet of the compression host, so that the temperature of the compressed air output by the magnetic suspension centrifugal air compressor is reduced, the burden of an aftertreatment system of the magnetic suspension centrifugal air compressor is reduced, the service life of the aftertreatment system is prolonged, and the service life of the magnetic suspension centrifugal air compressor is prolonged.
Description
Technical Field
The utility model relates to the technical field of air compression, in particular to a magnetic suspension centrifugal air compressor.
Background
The magnetic suspension centrifugal air compressor adopts a magnetic suspension technology to replace a driven mechanical bearing, so that a rotor can move in a contact-free and friction-free state, and the problems of mechanical abrasion, lubricating oil pollution and the like of the traditional mechanical bearing are solved. Compressed air generated by compression of a secondary compression host in a magnetic suspension centrifugal air compressor in the current market is directly discharged without being cooled, the exhaust temperature is high and the noise is high, so that after the high-temperature compressed air discharged by the secondary compression host enters a post-processing system of the magnetic suspension centrifugal air compressor to meet the requirements of no water stain and cleanness of the compressed air in industries such as food, electronics and the like, the processing load of the post-processing system is increased, the service life of the post-processing system is shortened, and even the production of compressed air users is influenced.
Disclosure of Invention
In order to prolong the service life of the magnetic suspension centrifugal air compressor, the utility model provides the magnetic suspension centrifugal air compressor which comprises a compression main machine and a post cooler, wherein a cooling inlet of the post cooler is communicated with a secondary exhaust port of the compression main machine through an exhaust pipe, a cooling outlet of the post cooler is connected with an air supply pipe, and a check valve is arranged on the air supply pipe. When the magnetic suspension centrifugal air compressor is used for producing compressed air, the aftercooler can be used for cooling high-temperature compressed air discharged from the secondary air outlet of the compression host, so that the temperature of the compressed air output by the magnetic suspension centrifugal air compressor is reduced, the burden of an aftertreatment system of the magnetic suspension centrifugal air compressor is reduced, the service life of the aftertreatment system is prolonged, and the service life of the magnetic suspension centrifugal air compressor is prolonged. In addition, the magnetic suspension centrifugal air compressor utilizes the check valve to prevent the cooled compressed air from flowing back into the aftercooler, thereby influencing the cooling effect of the aftercooler and the supply of the compressed air.
Preferably, a cyclone separation mechanism is provided in the aftercooler. Therefore, the cyclone separation mechanism is arranged in the aftercooler so as to separate out moisture in the compressed air under the low-temperature working condition, and the water content of the compressed air output by the magnetic suspension centrifugal air compressor is reduced.
Preferably, the exhaust pipe is provided with an emptying valve and a regulating valve, the air inlet end of the emptying valve is communicated with the exhaust pipe through an emptying branch pipe, and the air inlet end of the regulating valve is communicated with the exhaust pipe through a regulating branch pipe. Therefore, in the running process of the magnetic suspension centrifugal air compressor, the compressed gas in the discharge pipe of the regulating valve can be used for regulating the air pressure of the compression host at the secondary air outlet, so that the magnetic suspension centrifugal air compressor is prevented from surging due to the pressure holding generated at the secondary air outlet.
Preferably, a vent solenoid valve is connected to the vent valve. Therefore, in the running process of the magnetic suspension centrifugal air compressor, the emptying valve can be controlled to be closed or opened by powering on or powering off the emptying electromagnetic valve, so that the automatic control of the emptying valve is realized, and the control is simple and convenient. Further, the air outlet end of the air vent valve and the air outlet end of the regulating valve are both provided with a release silencer. Therefore, the exhaust silencer is arranged at the air outlet ends of the air vent valve and the regulating valve, so that the exhaust silencer is utilized to carry out silencing when compressed air in the exhaust pipe is discharged to the atmosphere by the air vent valve or the regulating valve, and noise generated in the running process of the magnetic suspension centrifugal air compressor is reduced.
Preferably, a secondary exhaust temperature sensor, a secondary exhaust pressure sensor and a safety valve are arranged on the exhaust pipe, the safety valve is close to the secondary exhaust port, and the secondary exhaust temperature sensor and the secondary exhaust pressure sensor are located between the safety valve and the secondary exhaust port. Therefore, the safety valve is arranged on the exhaust pipe, and when the pressure in the exhaust pipe, namely the secondary exhaust port, is overlarge, compressed air in the exhaust pipe can be discharged through the safety valve, so that the influence on the safe operation of the magnetic suspension centrifugal air compressor caused by overlarge air pressure at the secondary exhaust port is avoided; the exhaust pipe is provided with the secondary exhaust temperature sensor and the secondary exhaust pressure sensor so as to detect the temperature and the air pressure of compressed air at the secondary exhaust port in real time, thereby facilitating the rotating speed of the cooling fan and the flow rate of cooling liquid in the magnetic suspension centrifugal air compressor.
Preferably, an air filter, a pressure transmitter and an air inlet temperature sensor are arranged at the air inlet of the compression host, and the pressure transmitter and the air inlet temperature sensor are positioned between the air filter and the air inlet. In this way, in the running process of the magnetic suspension centrifugal air compressor, the air filter is used for filtering the air entering the compression host, so that the impurities in the air are prevented from entering the compression host to damage the compression host, the pressure transmitter is used for monitoring the air pressure at the air inlet of the compression host in real time, and the air temperature at the air inlet of the compression host is monitored by the air inlet temperature sensor in real time, so that the rotating speed of the cooling fan and the flow rate of the cooling liquid are conveniently adjusted according to the air pressure and the air temperature of the air entering the compression host.
Preferably, the magnetic suspension centrifugal air compressor is internally provided with a water cooler and a reflux water pump, a reflux inlet of the water cooler is communicated with a cooling liquid outlet of the compression host, and a reflux outlet of the water cooler is communicated with an inlet of the reflux water pump, and an outlet of the reflux water pump is communicated with a cooling liquid inlet of the compression host. Therefore, the water cooler and the reflux water pump are matched, so that the cooling liquid in the reflux pipeline which is communicated with the water cooler, the compression host and the reflux water pump circularly flows, the cooling liquid flowing in the reflux pipeline is used for carrying out liquid cooling treatment on the compression host, and the running temperature of the compression host is reduced. Further, an internal circulation medium in a reflux pipeline, which is communicated with the compression host and the reflux water pump, of the water cooler is ethylene glycol antifreeze. In this way, the ethylene glycol antifreeze is also used as an internal circulation medium to circulate in the reflux pipeline so as to cool the compression host, and the phenomenon that the internal circulation medium coolant in the magnetic suspension centrifugal air compressor of the utility model freezes in a low-temperature environment to block the reflux channel so as to influence the operation of the magnetic suspension centrifugal air compressor of the utility model can be avoided.
Preferably, the magnetic suspension centrifugal air compressor is provided with an intercooler, a cooling air inlet of the intercooler is communicated with a first-stage air outlet of the compression host, and a cooling air outlet of the intercooler is communicated with a second-stage air inlet of the compression host. Therefore, the middle cooler is arranged in the magnetic suspension centrifugal air compressor to cool the primary compressed air discharged from the primary air outlet of the compression host, so that the temperature of the compressed air entering the compression host through the secondary air inlet is reduced, and the compression effect of the compression host is improved.
Drawings
Fig. 1 is a schematic structural diagram of a magnetic suspension centrifugal air compressor of the utility model.
Detailed Description
The magnetic suspension centrifugal air compressor according to the present utility model will be described in detail with reference to fig. 1.
As shown in fig. 1, the magnetic suspension centrifugal air compressor of the utility model comprises a compression host 1, a water cooler 2, a reflux water pump 3, an intercooler 4 and an aftercooler 5. Wherein, air filter 61, pressure transmitter 62 and intake air temperature sensor 63 are provided at air inlet 11 of compression host 1, and pressure transmitter 62 and intake air temperature sensor 63 are located between air filter 61 and air inlet 11. Thus, in the running process of the magnetic suspension centrifugal air compressor, the air filter 61 is utilized to filter the air entering the compression host 1, so that the impurities in the air are prevented from entering the compression host 1 to damage the compression host 1, the pressure transmitter 62 is utilized to monitor the air pressure at the air inlet 11 of the compression host 1 in real time, and the air temperature at the air inlet 11 of the compression host 1 is utilized to monitor the air temperature at the air inlet 63 in real time, so that the rotating speed of the cooling fan and the flow rate of the cooling liquid are conveniently adjusted according to the air pressure and the air temperature of the air entering the compression host 1.
As shown in fig. 1, in the magnetic suspension centrifugal air compressor of the utility model, a reflux inlet 21 of a water cooler 2 is communicated with a cooling liquid outlet 12 of a compression host 1, a reflux outlet 22 of the water cooler 2 is communicated with an inlet of a reflux water pump 3, an outlet of the reflux water pump 3 is communicated with a cooling liquid inlet 13 of the compression host 1, and cooling liquid in the water cooler 2 is pumped out by the reflux water pump 3 and conveyed into the compression host 1 to carry out liquid cooling treatment on the compression host 1, so that the operation temperature of the compression host 1 is reduced. In addition, the water cooler 2 is communicated with the compression host 1 and the reflux water pump 3 through reflux pipelines (not shown in the figure), and internal circulation is formed in the operation process of the magnetic suspension centrifugal air compressor, so that the cooling liquid in the water cooler 2 can be recycled, and the consumption of the cooling liquid is saved. Preferably, glycol antifreeze is adopted as an internal circulation medium to circulate in a return pipeline among the water cooler 2, the compression host 1 and the return water pump 3 so as to cool the compression host 1, so that the influence on the operation of the magnetic suspension centrifugal air compressor due to the blockage of the return pipeline caused by the freezing of the cooling liquid in the magnetic suspension centrifugal air compressor can be avoided. Preferably, a liquid storage tank 7 is arranged between the reflux water pump 3 and the water cooler 2, and a liquid storage pressure gauge 71 and a liquid storage temperature sensor 72 are arranged on the liquid storage tank 7. In this way, a liquid storage tank 7 is arranged between the water cooler 2 and the reflux water pump 3, and the liquid storage tank 7 can be used for storing the cooling liquid for internal circulation, so that the cooling liquid for internal circulation of the magnetic suspension centrifugal air compressor is convenient to store and supplement; the liquid storage tank 7 is provided with the liquid storage pressure gauge 71 and the liquid storage temperature sensor 72, the pressure in the liquid storage tank 7 can be monitored in real time by utilizing the liquid storage pressure gauge 71, and the temperature in the liquid storage tank 7 can be monitored in real time by utilizing the liquid storage temperature sensor 72, so that the flow rate and the temperature of cooling water for cooling the cooling liquid for internal circulation in the water cooler 2 can be conveniently regulated to regulate the temperature of the cooled cooling liquid.
As shown in fig. 1, in the magnetic suspension centrifugal air compressor of the utility model, a cooling air inlet 41 of an intercooler 4 is communicated with a first-stage air outlet 14 of a compression host 1, and a cooling air outlet of the intercooler 4 is communicated with a second-stage air inlet 15 of the compression host 1. In this way, the middle cooler 4 is arranged in the magnetic suspension centrifugal air compressor to cool the high-temperature low-pressure first-stage compressed air discharged from the first-stage air outlet 14 in the compression host 1, so that the temperature of the compressed air entering the compression host 1 through the second-stage air inlet 15 is reduced, and the compression effect of the compression host 1 is improved. Preferably, a primary exhaust gas pressure sensor 81 and a primary exhaust gas temperature sensor 82 are arranged on the air delivery pipe between the cooling air inlet 41 of the intercooler 4 and the primary air outlet 14 of the compression host 1, and a secondary intake gas pressure sensor 83 and a secondary intake gas temperature sensor 84 are arranged on the air delivery pipe between the cooling air outlet 42 of the intercooler 4 and the secondary air inlet 15 of the compression host 1. In this way, in the operation process of the magnetic suspension centrifugal air compressor, the pressure and the temperature of the high-temperature low-pressure primary compressed air discharged from the primary air outlet 14 of the compression host 1 can be detected in real time by using the primary air discharge pressure sensor 81 and the primary air discharge temperature sensor 82, and the pressure and the temperature of the secondary compressed air after being cooled by the intercooler 4 can be monitored in real time by using the secondary air intake pressure sensor 83 and the secondary temperature sensor 84, so that the flow rate and the temperature of cooling water in the intercooler 4 can be conveniently adjusted.
As shown in fig. 1, in the magnetic suspension centrifugal air compressor of the utility model, a cooling inlet 51 of an aftercooler 5 is communicated with a secondary exhaust port 16 of a compression host 1 through an exhaust pipe (not shown), an air supply pipe (not shown) is connected to the cooling outlet 52 of the aftercooler 5, and a check valve 53 is provided on the air supply pipe. Therefore, when the magnetic suspension centrifugal air compressor is used for producing compressed air, the aftercooler 5 can be used for cooling high-temperature compressed air discharged from the secondary exhaust port 16 of the compression host 1, so that the temperature of the compressed air output by the magnetic suspension centrifugal air compressor is reduced, the burden of an aftertreatment system of the magnetic suspension centrifugal air compressor is reduced, the service life of the aftertreatment system is prolonged, and the service life of the magnetic suspension centrifugal air compressor is prolonged. In addition, the magnetic levitation centrifugal air compressor of the present utility model prevents the cooled compressed air from flowing back into the aftercooler 5 by the check valve 53, affecting the cooling effect of the aftercooler 5 and the supply of the compressed air. Preferably, a cyclone separation mechanism (not shown in the figures) is provided in the aftercooler 5. In this way, a cyclone separation mechanism is arranged in the aftercooler 5 to separate out moisture in the compressed air under a low-temperature working condition, so that the moisture content of the compressed air output by the magnetic suspension centrifugal air compressor is reduced. Preferably, the bottom of the aftercooler 5 is provided with a float drain (not shown in the figures). In this way, when the cyclone separation mechanism in the aftercooler 5 separates the moisture in the compressed air, the moisture can be discharged to the outside of the aftercooler 5 through the floating ball drainer. Preferably, the exhaust pipe is provided with an air release valve 91 and a regulating valve 92, and the air intake end of the air release valve 91 communicates with the exhaust pipe through an air release branch pipe (not shown in the figure), and the air intake end of the regulating valve 92 communicates with the exhaust pipe through a regulating branch pipe (not shown in the figure). In this way, in the running process of the magnetic suspension centrifugal air compressor, the compressed gas in the exhaust pipe can be discharged by the regulating valve 92 to regulate the air pressure of the compression host 1 at the secondary exhaust port 16, so that the magnetic suspension centrifugal air compressor is prevented from surging due to the pressure holding generated at the secondary exhaust port 16. Preferably, a vent solenoid valve 93 is connected to the vent valve 91. In this way, in the running process of the magnetic suspension centrifugal air compressor, the emptying valve 91 can be controlled to be closed or opened by powering on or powering off the emptying electromagnetic valve 93, so that the automatic control of the emptying valve 91 is realized, and the control is simple and convenient. Preferably, both the outlet end of the vent valve 91 and the outlet end of the regulator valve 92 are provided with a bleed muffler 94. In this way, the exhaust muffler 94 is disposed at the air outlet ends of the air release valve 91 and the regulating valve 92, so that the exhaust muffler 94 is used for silencing when the compressed air in the exhaust pipe is released to the atmosphere by the air release valve 91 or the regulating valve 92, and noise generated in the operation process of the magnetic suspension centrifugal air compressor is reduced. Preferably, a butterfly valve is used as the regulating valve 92 to regulate the pressure of the compressed air in the exhaust pipe, and the regulation is simple and convenient. Preferably, the exhaust pipe is provided with a secondary exhaust gas temperature sensor 95, a secondary exhaust gas pressure sensor 96 and a relief valve 97, the relief valve 97 being located near the secondary exhaust port 16, the secondary exhaust gas temperature sensor 95 and the secondary exhaust gas pressure sensor 96 being located between the relief valve 97 and the secondary exhaust port 16. In this way, the safety valve 97 is arranged on the exhaust pipe, when the pressure in the exhaust pipe, namely the secondary exhaust port 16 is overlarge, the compressed air in the exhaust pipe can be discharged through the safety valve 97, so that the influence on the safe operation of the magnetic suspension centrifugal air compressor caused by overlarge air pressure at the secondary exhaust port 16 is avoided; a secondary exhaust temperature sensor 95 and a secondary exhaust pressure sensor 96 are arranged on the exhaust pipe to detect the temperature and the air pressure of the compressed air at the secondary exhaust port 16 in real time, so that the rotating speed of a cooling fan and the flow speed of cooling liquid in the magnetic suspension centrifugal air compressor are convenient.
As shown in fig. 1, in the magnetic suspension centrifugal air compressor of the utility model, a cooling water inlet pipe of a water cooler 2, a cooling water inlet pipe of a cooling water cooler 4 and a cooling water inlet pipe of a post-cooler 5 are connected in parallel and are communicated with a water inlet main pipe (not shown in the figure), and a cooling water outlet pipe is connected in parallel and is communicated with a water outlet main pipe (not shown in the figure), so that the input and the discharge of cooling water in the magnetic suspension centrifugal air compressor of the utility model are convenient. Preferably, a water inlet pressure sensor 85 and a water inlet temperature sensor 86 are arranged on the water inlet main pipe so as to monitor the water inlet pressure and the water inlet temperature of the cooling water which is input into the water cooler 2, the cooler 4 and the aftercooler 5 by the water inlet main pipe in real time; the outlet water main pipe is provided with an outlet water temperature sensor 87 for monitoring the outlet water temperature of the cooling water discharged by the outlet water main pipe in real time. In this way, in the running process of the magnetic suspension centrifugal air compressor, the flow speed and the temperature of the cooling water input into the magnetic suspension centrifugal air compressor can be adjusted according to the water inlet pressure and the water inlet temperature of the cooling water input into the magnetic suspension centrifugal air compressor and the variable quantity between the water outlet pressure and the water outlet temperature of the cooling water discharged by the magnetic suspension centrifugal air compressor, so that the cooling effect of the magnetic suspension centrifugal air compressor is improved, and the discharged compressed air meets the use requirement of a user.
The magnetic suspension centrifugal air compressor drives the gas to rotate at a high speed by the impeller, so that the gas generates centrifugal force, and the flow speed and the pressure of the gas after passing through the impeller are improved due to the diffusion flow of the gas in the diffuser, so that compressed air is continuously produced.
Before starting up:
a water inlet temperature sensor 86 and a water inlet pressure sensor 85 on a water inlet main pipe detect whether the temperature of cooling water entering the magnetic suspension centrifugal air compressor meets the starting condition, for example, the water inlet pressure is more than or equal to 1.5bar; when the water inlet temperature is less than or equal to 32 ℃ and any one of the water inlet temperature and the water inlet pressure does not meet the setting requirement, the magnetic suspension centrifugal air compressor cannot be started, and meanwhile, the problem condition is displayed on the control panel of the magnetic suspension centrifugal air compressor, so that the operation and the overhaul personnel can conveniently adjust and overhaul.
When the machine is started up:
the backwater water pump works preferentially, ethylene glycol antifreeze in the liquid storage tank 7 is conveyed to the motor shell of the compression host 1 for internal circulation, heat in the motor is taken away, heat exchange is carried out between the backwater water pump and cooling water in the water cooler 2 in order to reduce the temperature, and the backwater water pump returns to the liquid storage tank 7 for reciprocating circulation.
Meanwhile, a motor shaft in the compression host 1 is in a suspension state along with the magnetic suspension bearing, so that a first fan 31 and a second fan 32 for air cooling in the motor in the compression host 1 work and blow air to the interior of the motor to reduce the temperature in the motor; the third fan 33 for air cooling in the machine case of the magnetic suspension centrifugal air compressor works to take away the heat in the machine case, so that the temperature in the machine case of the magnetic suspension centrifugal air compressor is reduced.
Thus, when the temperatures in the compression host 1 and the casing reach the set requirements, the blow-down solenoid valve 93 is energized, the blow-down valve 91 is closed, the regulating valve 92 is in a fully opened state, and the compression host 1 in the magnetic suspension centrifugal air compressor starts to work.
In the running process of the magnetic suspension centrifugal air compressor, air in the atmosphere enters a first-stage compression host (not shown in the figure) through an air filter 61 and an air inlet of the compression host 1, high-temperature and low-pressure first-stage compressed air formed in rotary compression of a first-stage impeller in the first-stage compression host is discharged from a first-stage air outlet 14 (a first-stage volute) of the compression host 1, enters a cooler 4, exchanges heat with cooling water in the middle cooler 4 and is cooled to form low-temperature and low-pressure first-stage compressed air, the low-temperature and low-pressure first-stage compressed air enters a second-stage compression host (not shown in the figure) in the compression host 1 through a second-stage air inlet 15 of the compression host 1, the high-temperature and high-pressure second-stage compressed air formed in rotary compression of the second-stage compression host is discharged from a second-stage air outlet (a second-stage volute) of the compression host 1, and when the temperature and the air pressure in an exhaust pipe are in a set range, the high-temperature and high-pressure second-stage compressed air enters a post cooler 5 and is cooled to form low-temperature and high-pressure compressed air which is supplied to a user end through an air supply pipe; when the air temperature and the air pressure in the exhaust pipe are too high, in order to avoid surging caused by the generation of pressure holding at the secondary exhaust port 16 (in the exhaust pipe) of the compression host machine 1, a part of high-temperature and high-pressure secondary compressed air is discharged into the atmosphere through the butterfly valve when the air pressure and the air temperature in the exhaust pipe are too high, and in the process of increasing the frequency of a motor in the compression host machine 1, the butterfly valve is gradually closed until the air temperature and the air pressure at the secondary exhaust port 16 reach a set value, the butterfly valve is completely closed, and all the high-temperature and high-pressure secondary compressed air output by the compression host machine 1 enters the aftercooler 5 to be cooled and supplied to a user end through the air supply pipe.
In the running process of the magnetic suspension centrifugal air compressor, cooling water in a water inlet header pipe enters a water cooler 2, a cooler 4 and a aftercooler 5 respectively, wherein the cooling water entering the water cooler 2 exchanges heat with glycol antifreeze in the water cooler 2, and the temperature of the glycol antifreeze for internal circulation is reduced; the cooling water entering the intercooler 4 exchanges heat with the high-temperature low-pressure primary compressed air entering the intercooler 4; the cooling water entering the aftercooler 5 exchanges heat with the high-temperature high-pressure secondary compressed air entering the aftercooler 5, and the cooling water discharged by the water cooler 2, the cooling 4 and the aftercooler 5 is collected to a water outlet main pipe and then discharged to the outside of the magnetic suspension centrifugal air compressor by the water outlet main pipe.
During unloading, the following steps are carried out:
the central control system in the magnetic suspension centrifugal air compressor can control the butterfly valve to be opened to a proper size according to the system pressure, excess compressed air within the system is vented to atmosphere through a bleed muffler 94.
When in shutdown:
the first fan 31, the second fan 32, the third fan 33 and the reflux water pump 3 all stop working, the emptying solenoid valve 93 is powered off, the emptying valve 91 is opened immediately, and compressed air is discharged into the atmosphere in time, so that the phenomenon that the butterfly valve is surging under the condition that the butterfly valve is not fully opened is prevented. The butterfly valve is opened gradually until the valve degree is fully opened; when the frequency of the motor in the compression host 1 is zero, the state is not completely stopped at this time, and the state is completely stopped only when the magnetic suspension bearing of the motor completely falls down.
In addition, after the whole magnetic suspension air compressor is started, the central processing unit can be utilized to adjust the rotating speed of the motor in the compression host 1 through frequency conversion of the frequency converter according to the use working condition of the user side, so that energy saving use is achieved; when the air consumption of the user side is lower, the central processing unit can open the butterfly valve according to the performance curve of the compression host 1 to discharge redundant air, so that the phenomenon of surging of the compression host is prevented.
Claims (10)
1. The utility model provides a magnetic suspension centrifugal air compressor machine, its characterized in that, this magnetic suspension centrifugal air compressor machine includes compression host computer and aftercooler, the cooling import of aftercooler pass through the blast pipe with the second grade gas vent intercommunication of compression host computer, the cooling exit of aftercooler is connected with the air supply pipe, and is provided with the check valve on this air supply pipe.
2. A magnetic levitation centrifugal air compressor according to claim 1, wherein a cyclone separation mechanism is provided in the aftercooler.
3. A magnetic suspension centrifugal air compressor according to claim 1 or 2, wherein an air release valve and a regulating valve are arranged on the air release pipe, an air inlet end of the air release valve is communicated with the air release pipe through an air release branch pipe, and an air inlet end of the regulating valve is communicated with the air release pipe through a regulating branch pipe.
4. A magnetic levitation centrifugal air compressor according to claim 3, wherein the vent valve is connected with a vent solenoid valve.
5. The magnetic suspension centrifugal air compressor according to claim 4, wherein the air outlet end of the air release valve and the air outlet end of the regulating valve are both provided with a release muffler.
6. A magnetic levitation centrifugal air compressor according to claim 3, wherein the exhaust pipe is provided with a secondary exhaust gas temperature sensor, a secondary exhaust gas pressure sensor and a safety valve, the safety valve being located near the secondary exhaust port, the secondary exhaust gas temperature sensor and the secondary exhaust gas pressure sensor being located between the safety valve and the secondary exhaust port.
7. A magnetic levitation centrifugal air compressor according to claim 3, wherein an air filter, a pressure transmitter and an intake air temperature sensor are provided at an air inlet of the compression host, the pressure transmitter and the intake air temperature sensor being located between the air filter and the air inlet.
8. A magnetic suspension centrifugal air compressor according to claim 3, wherein a water cooler and a reflux water pump are arranged in the magnetic suspension centrifugal air compressor, a reflux inlet of the water cooler is communicated with a cooling liquid outlet of the compression host, a reflux outlet of the water cooler is communicated with an inlet of the reflux water pump, and an outlet of the reflux water pump is communicated with a cooling liquid inlet of the compression host.
9. The magnetic suspension centrifugal air compressor according to claim 8, wherein an internal circulation medium in a return pipe of the water cooler communicating with the compression host and the return water pump is glycol antifreeze.
10. A magnetic suspension centrifugal air compressor according to claim 3, wherein a intercooler is provided in the magnetic suspension centrifugal air compressor, a cooling air inlet of the intercooler is communicated with a primary air outlet of the compression host, and a cooling air outlet of the intercooler is communicated with a secondary air inlet of the compression host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322024427.2U CN220748570U (en) | 2023-07-31 | 2023-07-31 | Magnetic suspension centrifugal air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322024427.2U CN220748570U (en) | 2023-07-31 | 2023-07-31 | Magnetic suspension centrifugal air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220748570U true CN220748570U (en) | 2024-04-09 |
Family
ID=90553805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322024427.2U Active CN220748570U (en) | 2023-07-31 | 2023-07-31 | Magnetic suspension centrifugal air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220748570U (en) |
-
2023
- 2023-07-31 CN CN202322024427.2U patent/CN220748570U/en active Active
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