Digital energy air compression station based on air bearing with noise reduction effect

Abstract

The present application relates to air compression station technical field, more specifically, it relates to a kind of digital energy air compression station based on air bearing with noise reduction effect, including machine room, screw air compressor, cooler, oil-water separator, first gas storage tank, dryer, filter and second gas storage tank are sequentially connected in machine room, first gas storage tank is also connected with first gas supply pipe, second gas storage tank is also connected with second gas supply pipe;Screw air compressor selects air bearing, filter and second gas storage tank are provided with third gas supply pipe, third gas supply pipe connects air bearing, and third gas supply pipe continuously inputs part compressed air in the air path of air bearing, in the digital energy air compression station of the application, the screw air compressor of using air bearing can avoid mechanical friction, to further reduce noise, improve the noise reduction effect of digital energy air compressor, and air bearing can be more conveniently obtained compressed air in air compression station.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of air compression stations, and in particular to a digital energy air compression station based on air bearing with noise reduction effect. BACKGROUND

[0002] The digital energy air compression station refers to an air compression station based on digital technology and intelligent control, which is improved with the high-speed development of digital technology and intelligent technology, and is mainly used for air treatment, so as to provide suitable compressed air for various devices in the industrial field.

[0003] As an important power source in current industrial production, the performance of the core equipment air compressor of the digital energy air compression station directly affects the operation efficiency and reliability of the whole system. At present, the digital energy air compression station generally adopts a screw air compressor, and the bearing of the screw air compressor usually relies on lubricating oil for lubrication. Since mechanical friction still exists between the bearing and the rotating shaft of the screw air compressor, the noise reduction effect of the digital energy air compression station is insufficient. SUMMARY

[0004] In order to further improve the noise reduction effect, the application provides a digital energy air compression station based on air bearing with noise reduction effect.

[0005] The digital energy air compression station based on air bearing with noise reduction effect provided by the application adopts the following technical scheme:

[0006] The digital energy air compression station based on air bearing with noise reduction effect comprises a machine room, a screw air compressor, a cooler, an oil-water separator, a first gas storage tank, a dryer, a filter and a second gas storage tank which are sequentially connected in the machine room, the first gas storage tank is further connected with a first gas supply pipe, the second gas storage tank is further connected with a second gas supply pipe, the bearing of the screw air compressor is selected from air bearings, a third gas supply pipe is arranged between the filter and the second gas storage tank, the third gas supply pipe is connected with the air bearing, and the third gas supply pipe continuously inputs a part of compressed air into the air path of the air bearing.

[0007] Preferably, the third gas supply pipe is provided with a first heater, and the compressed gas is heated by the first heater before being supplied to the air bearing.

[0008] Preferably, the dryer is an adsorption dryer.

[0009] Preferably, the air bearing is connected with a fourth air supply pipe, the fourth air supply pipe transports the gas output by the air bearing to the adsorption dryer, the fourth air supply pipe is provided with a second heater, the second heater performs secondary heating on the gas entering the adsorption dryer, and the adsorption dryer is regenerated by using the secondarily heated gas.

[0010] Preferably, the air bearing is provided with a vibration-pressure interlocking module, the vibration-pressure interlocking module collects the vibration signal of the air bearing in real time and dynamically adjusts the air supply pressure of the third air supply pipe, the air supply pressure is in a positive proportional relationship with the vibration amplitude.

[0011] Preferably, an auxiliary pressure stabilizing tank is arranged in the machine room, when the working pressure fluctuation of the air bearing is greater than 5% of the set value, the auxiliary pressure stabilizing tank in the machine room is activated to stabilize the pressure.

[0012] Preferably, a standby air compressor is arranged in the machine room, the standby air compressor is an air compressor using a non-air bearing, if the working pressure abnormally lasts for more than 30 seconds, the standby air compressor is switched by a switching valve.

[0013] Preferably, the third air supply pipe is subjected to helium mass spectrum leak detection before being put into use, the inner wall is subjected to electro-polishing, and 48 hours of nitrogen blowing is performed.

[0014] Preferably, the screw air compressor, the air bearing and the third air supply pipe are subjected to a trial operation program, including phase one: idle running for 24 hours; phase two: 50% load for 48 hours; phase three: full load for 72 hours.

[0015] Preferably, the machine room is divided into three layers from top to bottom, namely an upper layer, a middle layer and a lower layer, the control cabinet and the monitoring instrument are arranged on the upper layer of the machine room, the screw air compressor, the cooler, the oil-water separator and the first gas storage tank are arranged on the middle layer of the machine room, the middle layer of the machine room is further provided with an air inlet, the dryer, the filter and the second gas storage tank are arranged on the lower layer of the machine room.

[0016] The beneficial effects of the present application are:

[0017] 1. The third air supply pipe continuously inputs a part of compressed air into the air path of the air bearing, the screw air compressor can avoid mechanical friction by using the air bearing, so as to further reduce noise, improve the noise reduction effect of the digital energy air compressor, and the air bearing can conveniently obtain compressed air in the air compression station.

[0018] 2. The first heater can heat the compressed gas entering the air bearing, increasing the gas viscosity. The increased gas viscosity can enhance the air bearing's film shear force, ultimately improving the theoretical load-bearing capacity and better meeting the low-speed, heavy-load requirements of the screw air compressor.

[0019] 3. The second heater reheats the gas entering the adsorption dryer from the air bearing, and uses the reheated gas to regenerate the adsorbent in the adsorption dryer, making full use of the heat from the first heating of the gas. Attached Figure Description

[0020] Figure 1 This is a plan view of the digital energy air compressor station in the embodiments of this application.

[0021] Explanation of reference numerals in the attached diagram: 1. Screw air compressor; 2. Cooler; 3. Oil-water separator; 4. First air receiver; 5. Adsorption dryer; 6. Filter; 7. Second air receiver; 8. Control cabinet; 9. Monitoring instrument. Detailed Implementation

[0022] The following will combine Figure 1 The present invention will be further illustrated by the embodiments.

[0023] This embodiment discloses a digital energy air compressor station based on air bearings with noise reduction effect.

[0024] Reference Figure 1 The digital energy air compressor station based on air bearings with noise reduction effect includes a machine room, which is divided into three levels from top to bottom: upper level, middle level, and lower level. The upper level of the machine room houses a control cabinet 8 and monitoring instruments 9. The middle level of the machine room contains a screw air compressor 1, a cooler 2, an oil-water separator 3, and a first air storage tank 4, connected in sequence. An air inlet is located in the middle level, supplying air to the screw air compressor 1. After cooling and oil-water separation, the compressed gas forms industrial gas and is stored in the first air storage tank 4. The first air storage tank 4 is connected to a first air supply pipe, through which it releases compressed gas. The lower level of the machine room contains a dryer, a filter 6, and a second air storage tank 7, connected in sequence. The dryer connects upwards to the first air storage tank 4. After drying and filtering, the compressed gas forms precision instrument gas and is stored in the second air storage tank 7. The second air storage tank 7 is connected to a second air supply pipe, through which it releases compressed gas.

[0025] Reference Figure 1, the bearing of the screw air compressor 1 is selected as an air bearing, a third air supply pipe is arranged between the filter 6 and the second air tank 7, the third air supply pipe is connected to the air bearing, the third air supply pipe continuously inputs a part of compressed air into the air path of the air bearing, the screw air compressor 1 can avoid mechanical friction by using the air bearing, thereby further reducing noise, improving the noise reduction effect of the digital energy air compressor, and the air bearing can conveniently obtain compressed air in the air compression station.

[0026] With reference to Figure 1 , the third air supply pipe is provided with a first heater, and the compressed gas is heated by the first heater before being supplied to the air bearing. In this embodiment, the air supply temperature of the third air supply pipe is controlled at 40±5°. The purpose is that the rotating speed of the screw air compressor 1 is usually between 800 and 4000 revolutions per minute, which belongs to low-speed heavy load. According to the Suerland formula, the temperature rise can improve the gas viscosity, the improvement of the gas viscosity can enhance the air bearing gas film shear force, and finally improve the theoretical bearing capacity, better meet the demand of the screw air compressor 1 for low-speed heavy load.

[0027] With reference to Figure 1 , the third air supply pipe needs to be helium mass spectrometry leak detection before being put into use, to avoid high leakage rate, and the inner wall thereof needs to be electro-polished and subjected to 48-hour nitrogen blowing. Through the above operation, the air tightness, cleanliness and gas transmission efficiency of the third air supply pipe can be significantly improved, so as to ensure that the air bearing obtains stable and pure gas supply, and improve its bearing capacity, rotating speed accuracy and service life. After the above operation is completed, the screw air compressor 1, the air bearing and the third air supply pipe still need to be subjected to a trial running program, including phase one: running for 24 hours under no load, checking the floating amount of the air bearing; phase two: running for 48 hours under 50% load, grinding; phase three: running for 72 hours under full load, testing stability under extreme conditions. After the trial running is completed, the third air supply pipe and the air bearing can be formally put into use.

[0028] With reference to Figure 1 , the dryer is an adsorption dryer 5, the air bearing is connected with the fourth air supply pipe, the fourth air supply pipe transports the gas output by the air bearing to the adsorption dryer 5, the fourth air supply pipe is provided with a second heater, the second heater performs secondary heating on the gas entering the adsorption dryer 5, and the second heater regenerates the adsorbent of the adsorption dryer 5 by using the second-heated gas, so as to fully utilize the heat after the first heating of the gas.

[0029] With reference to Figure 1The machine room is further provided with an auxiliary pressure stabilizing tank and a standby air compressor, the standby air compressor is an air compressor using ordinary bearings, a vibration-pressure interlocking module is arranged at the air bearing, the vibration-pressure interlocking module collects vibration signals of the air bearing in real time and dynamically adjusts the air supply pressure of the third air supply pipe, in this embodiment, taking the working pressure of the air bearing as an example, when the vibration amplitude is greater than 2μm, the air supply pressure is increased by 0.05MPa, when the working pressure of the air bearing fluctuates by more than 5% of the set value, the auxiliary pressure stabilizing tank is activated to stabilize the pressure, and if the abnormality lasts for more than 30 seconds, the standby air compressor is switched by a switching valve. It should be noted that another function of the standby air compressor is to manufacture and store a part of bearing air in advance for the air bearing.

[0030] With reference to Figure 1 The upper layer and the lower layer of the machine room are provided with entrances and exits, and a crawling ladder is arranged between the upper layer, the middle layer and the lower layer, so as to facilitate the staff to enter and exit and walk between different layers.

[0031] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A digital energy air compressor station based on air bearings with noise reduction effect, characterized in that: The system includes a machine room, which is equipped with a screw air compressor (1), a cooler (2), an oil-water separator (3), a first air tank (4), a dryer, a filter (6), and a second air tank (7) connected in sequence. The first air tank (4) is also connected to a first air supply pipe, and the second air tank (7) is also connected to a second air supply pipe. The screw air compressor (1) uses an air bearing. A third air supply pipe is provided between the filter (6) and the second air tank (7). The third air supply pipe is connected to the air bearing, and the third air supply pipe continuously inputs a portion of compressed air into the air path of the air bearing. A vibration-pressure interlock module is installed at the air bearing. The vibration-pressure interlock module collects the vibration signal of the air bearing in real time and dynamically adjusts the air supply pressure of the third air supply pipe. The air supply pressure is directly proportional to the vibration amplitude. An auxiliary pressure stabilizing tank is installed in the machine room. When the working pressure of the air bearing fluctuates by more than 5% of the set value, the auxiliary pressure stabilizing tank is activated in the machine room to stabilize the pressure. If the abnormality lasts for more than 30 seconds, the standby air compressor is switched through the switching valve. Another function of the standby air compressor is to manufacture and store a portion of the bearing air in advance.

2. The digital energy air compressor station based on air bearings with noise reduction effect according to claim 1, characterized in that: The third air supply pipe is equipped with a first heater, and the compressed gas is heated by the first heater in the third air supply pipe before being supplied to the air bearing.

3. A digital energy air compressor station based on air bearings with noise reduction effect according to claim 2, characterized in that: The dryer is an adsorption dryer (5).

4. A digital energy air compressor station based on air bearings with noise reduction effect according to claim 3, characterized in that: The air bearing is connected to the adsorption dryer (5) by a fourth air supply pipe. The fourth air supply pipe delivers the gas output from the air bearing to the adsorption dryer (5). The fourth air supply pipe is equipped with a second heater. The second heater reheats the gas entering the adsorption dryer (5) and uses the reheated gas to regenerate the adsorbent in the adsorption dryer (5).

5. A digital energy air compressor station based on air bearings with noise reduction effect according to claim 1, characterized in that: The machine room is equipped with a backup air compressor, which is an air compressor that does not use air bearings. If the abnormal working pressure lasts for more than 30 seconds, the backup air compressor will be switched through a switching valve.

6. A digital energy air compressor station based on air bearings with noise reduction effect according to claim 1, characterized in that: Before being put into use, the third gas supply pipe underwent helium mass spectrometry leak detection, and its inner wall was electropolished and purged with nitrogen for 48 hours.

7. A digital energy air compressor station based on air bearings with noise reduction effect according to claim 6, characterized in that: The screw air compressor (1), the air bearing and the third air supply pipe are to undergo a trial operation procedure, including stage one: 24 hours of no-load operation; stage two: 48 hours of 50% load; stage three: 72 hours of full load.

8. A digital energy air compressor station based on air bearings with noise reduction effect according to claim 1, characterized in that: The machine room is divided into three layers from top to bottom: upper layer, middle layer and lower layer. The upper layer of the machine room is equipped with a control cabinet (8) and monitoring instruments (9). The screw air compressor (1), the cooler (2), the oil-water separator (3) and the first air storage tank (4) are located on the middle layer of the machine room. The middle layer of the machine room is also equipped with an air inlet. The dryer, the filter (6) and the second air storage tank (7) are located on the lower layer of the machine room.

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