Parallel control air compressor

Abstract

The utility model relates to a parallel control air compressor which comprises an air tank used for storing compressed air. The multiple sets of compression mechanisms are sequentially arranged on the gas tank in the length direction of the gas tank, the multiple sets of compression mechanisms are connected into the gas tank, and the multiple sets of compression mechanisms are used for inputting compressed gas into the gas tank; the controller is arranged on the portion, on one side of the compression mechanisms, of the gas tank, and the controller is used for controlling the multiple sets of compression mechanisms to work synchronously or controlling the multiple sets of compression mechanisms to work cooperatively; the output assembly is used for outputting the compressed gas in the gas tank; and the protection assemblies are arranged on the portions, on the two sides of the multiple sets of compression mechanisms, of the air tank, the protection assemblies are used for protecting the multiple sets of compression mechanisms, and the effect of improving the practicability of the air compressor is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air compressors, in particular to a parallel control air compressor. BACKGROUND

[0002] An air compressor is a device that compresses air into high-pressure gas, and its core function is to provide a power source for industrial production, such as driving pneumatic tools (e.g., spray guns, pneumatic drills) and automated control systems, while supporting gas transportation (e.g., remote coal gas transportation) and chemical synthesis (e.g., urea and polyethylene production) processes.

[0003] An air compressor is mainly composed of a compression host (screw, piston, or centrifugal), a driving motor, an air inlet filter, a cooling system, a lubrication system, a gas tank, a control system, an oil-gas separator, and safety devices. Its working principle consists of three stages: suction, compression, and exhaust. When suction, external air enters the compression chamber through the filter; in the compression stage, the volume of the gas is reduced by mechanical components (such as screw male and female rotors or centrifugal impeller rotation) to increase the pressure, and the heat generated in the process is dissipated by the cooling system; finally, the compressed air is transported to the gas tank after oil-gas separation and pressure stabilization, and the control system monitors parameters such as pressure and temperature in real time to ensure safe operation.

[0004] However, the inventors have found that in the prior art, air compressors usually only have one compression host. When the user uses it, if the instantaneous power used is large, the single compression host will not be able to pump the same amount of gas into and out of the gas tank, resulting in a decrease in the pressure value of the gas output along the gas tank, making it difficult to meet the gas pressure requirements of electrical equipment during use, and there is room for improvement. CONTENT OF THE INVENTION

[0005] In order to improve the practicality of the air compressor, the present application provides a parallel control air compressor.

[0006] The parallel control air compressor provided by the present application adopts the following technical solution:

[0007] A parallel control air compressor, comprising a gas tank for storing compressed gas; a plurality of compression mechanisms, the plurality of compression mechanisms are sequentially arranged on the gas tank along the length direction of the gas tank, and the plurality of compression mechanisms are respectively connected to the gas tank, and the plurality of compression mechanisms are used for inputting compressed gas into the gas tank; a controller, the controller is arranged on the gas tank on one side of the compression mechanism, the controller is used for controlling the plurality of compression mechanisms to work synchronously, or the controller is used for controlling the plurality of compression mechanisms to work cooperatively; an output assembly, the output assembly is used for outputting the compressed gas in the gas tank; a protection assembly, the protection assembly is arranged on the gas tank on both sides of the plurality of compression mechanisms, and the protection assembly is used for protecting the plurality of compression mechanisms.

[0008] By adopting the above technical scheme, through the parallel layout of the plurality of compression mechanisms, the air charging efficiency of the gas tank is improved, when the instantaneous high power output demand is required, the plurality of compression mechanisms can work cooperatively or alternately, which helps to maintain the stability of the pressure in the gas tank, reduces the risk of pressure drop caused by overload of a single compression mechanism, and at the same time, the flexibility of the controller is enhanced, the start and stop of the compression mechanism is dynamically adjusted according to the gas demand, when the current gas power is low, a group of compression mechanisms can work independently, the number of groups of gas mechanisms working according to the gas demand is adjusted, which is helpful to reduce the energy consumption, and the physical damage of the external environment to the compression mechanism is reduced by the protection assembly, the amount of foreign matters entering the compression mechanism is reduced, and the service life is improved.

[0009] Preferably, the output assembly comprises a main output pipeline and a plurality of branch pipelines, one end of the main output pipeline is connected to the gas tank, the other end of the main output pipeline is connected to the plurality of branch pipelines, the plurality of branch pipelines are used for connecting to gas equipment, a safety valve is arranged between the main output pipeline and the plurality of branch pipelines, the safety valve is used for releasing high-pressure gas in the gas tank, and the safety valve is electrically connected to the controller.

[0010] By adopting the above technical scheme, the design of the branch pipeline can support multi-way gas output, adapt to the connection demand of different gas equipment, improve the applicability, and improve the safety by the safety valve, when the pressure of the gas tank is abnormal, the controller is used for pressure relief, so as to avoid dangerous accidents caused by overpressure of the gas tank.

[0011] Preferably, the gas tank is provided with a bearing leg on both sides along the length direction, and the plurality of compression mechanisms are detachably arranged on the bearing leg at the same interval along the length direction of the bearing leg.

[0012] By adopting the technical scheme, the bearing leg is beneficial to improve the stability of the air tank and the compression mechanism as a whole, and reduce vibration transmission. Since the compression mechanism is detachably connected with the bearing leg, the air tank and / or the compression mechanism can be conveniently maintained or replaced. The compression mechanism is arranged at the same interval along the bearing leg, which can optimize the space utilization rate and reduce the probability of resonance of adjacent two groups of compression mechanisms when they work synchronously, thereby reducing the overall noise or the probability of occurrence of shaking.

[0013] Preferably, the compression mechanism comprises two groups of compression hosts, the output ends of the two groups of compression hosts are connected to the air tank at the same time, and the two groups of compression hosts are started and stopped synchronously, and the two groups of compression hosts are electrically connected with the controller.

[0014] By adopting the technical scheme, one group of compression mechanism comprises two groups of compression hosts, and the output ends of the two groups of compression hosts are connected to the air tank at the same time, which is beneficial to improve the efficiency of filling compressed gas into the air pipe when one group of compression mechanism works. Since the two groups of compression hosts are started and stopped synchronously, the pressure fluctuation caused by the difference in starting and stopping time of the two groups of compression hosts can be reduced, which is beneficial to maintain the stability of the gas.

[0015] Preferably, the protection assembly comprises a protection plate and a magnetic lock, the magnetic lock is arranged on the bearing leg, a limiting groove is formed in the bearing leg, the groove width of the limiting groove is matched with the thickness of the protection plate, the magnetic lock is used to fasten the protection plate in the limiting groove, and the magnetic lock is electrically connected with the controller.

[0016] By adopting the technical scheme, since the groove width of the limiting groove is matched with the thickness of the protection plate, the position of the protection plate installed on the air tank is limited, and the adjustment time of the protection plate installed on the air tank is reduced. When the protection plate is located on the bearing leg by the limiting effect of the limiting groove, the working state of the magnetic lock can be controlled by the controller. The electromagnetic force provided by the magnetic lock is used to tightly attract the protection plate to the bearing leg. When the magnetic lock is powered off, the protection plate can be detached along the bearing leg. The operation is simple and convenient, and the practicability is high.

[0017] Preferably, the surface of the protection plate facing the compression host abuts against the end face of the compression host, and a plurality of flow holes are formed in the protection plate, the flow holes are used for air to enter the compression mechanism.

[0018] By adopting the technical scheme, since the protection plate abuts against the end face of the compression host, the gap between the compression host and the protection plate is reduced, the amount of foreign matter entering the compression host through the gap is reduced, and the probability of the vibration force generated by the compression host when working being conducted to the protection plate and thus generating a large noise is reduced.

[0019] Preferably, the bearing foot is provided with a damping member.

[0020] By adopting the above technical scheme, the damping member is conducive to absorbing the vibration energy generated when the plurality of compression mechanisms work, reducing the mechanical impact transmitted to the gas tank, reducing noise, and improving the stability of the plurality of compression mechanisms when working.

[0021] Preferably, the controller is provided with a plurality of control buttons corresponding to the number of compression mechanisms, and the plurality of control buttons are used to adjust the working state of the corresponding compression mechanism.

[0022] By adopting the above technical scheme, the independent control button enables the operator to freely adjust the number of compression mechanisms working simultaneously, adapt to different load requirements, and realize grouping control through the control button, thereby reducing the probability of the entire compression mechanism stopping due to accidental touch of a single button.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. By parallel arrangement of the plurality of compression mechanisms, the inflation efficiency of the gas tank is improved. When instantaneous high-power output is required, multiple compression mechanisms can work cooperatively or alternately, which helps to maintain the stability of the pressure in the gas tank and reduce the risk of pressure drop caused by overloading of a single compression mechanism.

[0025] 2. A set of compression mechanisms includes two sets of compression hosts, and the output ends of the two sets of compression hosts are connected to the gas tank at the same time.

[0026] This is conducive to improving the efficiency of filling compressed gas into the gas pipe when a single compression mechanism works, and because the two sets of compression hosts are started and stopped synchronously, the pressure fluctuation caused by the difference in start and stop time of the two sets of compression hosts can be reduced, which is conducive to maintaining the stability of the gas.

[0027] 3. The independent control button enables the operator to freely adjust the number of compression mechanisms working simultaneously, adapt to different load requirements, and realize grouping control through the control button, thereby reducing the probability of the entire compression mechanism stopping due to accidental touch of a single button.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a parallel control air compressor according to an embodiment of the present application.

[0030] Figure 2 FIG. 2 is an enlarged structural schematic diagram of part A of the parallel control air compressor in FIG. 1. Figure 1 ​​

[0031] Figure 3 is a structure diagram of a controller of a parallel control air compressor.

[0032] Reference signs: 1, air tank; 2, compression mechanism; 21, compression host; 22, air inlet filter assembly; 3, controller; 31, control button; 32, display panel; 33, total start-stop switch; 34, running indicator light; 4, output assembly; 41, main output pipeline; 42, shunt pipeline; 43, pressure gauge; 44, ball valve; 45, pressure regulating and water removal filter; 5, protection assembly; 51, protection plate; 511, flow-through hole; 6, safety valve; 7, load-bearing leg; 71, shock-absorbing piece. DETAILED DESCRIPTION

[0033] The following will be described in detail with reference to the accompanying drawings Figures 1-3 The present application is further described in detail.

[0034] The present application discloses a parallel control air compressor. Referring to Figure 1 and Figure 2 A parallel control air compressor comprises an air tank 1 for storing compressed gas; a plurality of compression mechanisms 2 arranged in sequence along the length direction of the air tank 1 on the air tank 1, and connected to the air tank 1 respectively, for inputting compressed gas into the air pipe; a controller 3 arranged on the air tank 1 at one side of the compression mechanism 2, for controlling the plurality of compression mechanisms 2 to work synchronously, or for controlling the plurality of compression mechanisms 2 to work cooperatively; an output assembly 4 for outputting the compressed gas in the air pipe; and a protection assembly 5 arranged on the air tank 1 at both sides of the plurality of compression mechanisms 2, for protecting the plurality of compression mechanisms 2.

[0035] Firstly, the controller 3 is a PLC (Programmable Logic Controller), which contains logic control, time sequence control, analog control, multi-machine communication and other functions, and has a man-machine interface for facilitating the control and adjustment of the PLC. As an existing controller 3, its specific composition and working principle will not be described here.

[0036] Meanwhile, the specific number of the plurality of compression mechanisms 2 can be increased or decreased according to actual needs and the size of the air tank 1. In this embodiment, the number of the compression mechanisms 2 is set to four for the sake of convenience. Since the components of the four compression mechanisms 2 and the connection mode with the air tank 1 are the same, one of them will be described in detail in the following description.

[0037] Referring to Figure 1 and Figure 2The output assembly 4 comprises a main output pipeline 41 and a plurality of branch pipelines 42, one end of the main output pipeline 41 is connected to the gas tank 1, the other end of the main output pipeline 41 is connected to the plurality of branch pipelines 42, the plurality of branch pipelines 42 are used to connect to the gas equipment, a safety valve 6 is arranged between the main output pipeline 41 and the plurality of branch pipelines 42, the safety valve 6 is used to release the high-pressure gas in the gas pipeline, and the safety valve 6 is electrically connected to the controller 3.

[0038] Specifically, the output assembly 4 further comprises a pressure gauge 43, a ball valve 44 and a pressure regulating and water removing filter 45, which are sequentially arranged between the main output pipeline 41 and the plurality of branch pipelines 42.

[0039] The pressure gauge 43 is used to display the pressure of the gas output along the main output pipeline 41, the ball valve 44 is used to control the compressed air in the gas tank 1 to be output along the main output pipeline 41 to the plurality of branch pipelines 42 or to stop the compressed air from being output to the plurality of branch pipelines 42, and the pressure regulating and water removing filter 45 is used to filter out water vapor, dust and other impurities in the compressed air, and the pressure regulating function is specific.

[0040] It should be noted that the plurality of branch pipelines 42 are used to connect to the gas equipment, and the specific number thereof can be increased or decreased according to the requirements, which is not limited herein.

[0041] Therefore, the design of the branch pipeline 42 can support multi-way gas output, adapt to the connection requirements of different gas equipment, improve the applicability, and the safety valve 6 is beneficial to improve the safety, and when the pressure of the gas tank 1 is abnormal, the controller 3 is used for pressure relief, so as to avoid dangerous accidents caused by overpressure of the gas tank 1.

[0042] Referring to Figure 2 and Figure 3 The controller 3 is provided with a plurality of control buttons 31 corresponding to the number of the compression mechanisms 2, and the plurality of control buttons 31 are used to adjust the working state of the corresponding compression mechanism 2.

[0043] Specifically, the controller 3 is provided with a display panel 32 and a total start-stop switch 33, in the embodiment, the control buttons 31 are provided with four, the four buttons are sequentially arranged, at the same time, the controller 3 is provided with four running indicator lights 34, the four running indicator lights 34 correspond to the four groups of control buttons 31 respectively, correspond to the four groups of compression mechanisms 2 respectively, the working state is displayed through the display panel 32, and the display panel 32, the total start-stop switch 33, the four running indicator lights 34 and the four groups of control buttons 31 are electrically connected to the controller 3 respectively.

[0044] Therefore, when the operator turns on the total start-stop switch 33, and then presses any one or more groups of control buttons 31 again, the indicator light corresponding to the control button 31 will light up, and at the same time, the compression mechanism 2 corresponding to the control button 31 starts to work and starts to fill the gas tank 1 with compressed gas. When it is necessary to stop one or more groups of compression mechanisms 2 from working, it is only necessary to press the control button 31 corresponding to the compression mechanism 2 to be turned off, which is simple and convenient to operate. The independent control button 31 enables the operator to freely adjust the number of groups of compression mechanisms 2 working simultaneously, adapt to different load requirements, and realize group control through the control button 31, thereby reducing the probability of stopping all compression mechanisms 2 due to accidental pressing of a single button.

[0045] Referring to Figures 1-3 The gas tank 1 is provided with a load supporting leg 7 on each side along the length direction, and a plurality of groups of compression mechanisms 2 are detachably arranged on the load supporting leg 7 at the same interval along the length direction of the load supporting leg 7.

[0046] Specifically, the load supporting leg 7 is arranged in an L-shaped contour outside and is formed by bending a metal plate. The end of the load supporting leg 7 abutting against the gas tank 1 is fixedly connected to the gas tank 1 by welding, thereby reducing the probability of loosening or falling off of the load supporting leg 7 along the gas tank 1.

[0047] Correspondingly, any one group of compression mechanisms 2 includes two groups of compression hosts 21, the output ends of the two groups of compression hosts 21 are connected to the gas tank 1 at the same time, and the two groups of compression hosts 21 are synchronously started and stopped. The two groups of compression hosts 21 are electrically connected to the controller 3. One group of compression mechanisms 2 includes two groups of compression hosts 21, and the output ends of the two groups of compression hosts 21 are connected to the gas tank 1 at the same time, which is beneficial to improving the efficiency of filling the gas tank with compressed gas when one group of compression mechanisms 2 works. At the same time, because the two groups of compression hosts 21 are synchronously started and stopped, the pressure fluctuation caused by the difference in starting and stopping time of the two groups of compression hosts 21 can be reduced, which is beneficial to maintaining the stability of the gas.

[0048] Further, the compression host 21 is fixed to the load supporting leg 7 by bolts, and at the same time, the compression host 21 can be quickly disassembled along the load supporting leg 7, which is simple and convenient to operate. At the same time, the load supporting leg 7 is provided with a damping member 71, which can be a silica gel pad or a rubber pad. The damping member 71 is installed on the surface of the load supporting leg 7 abutting against the compression host 21. When the compression host 21 is fixed to the load supporting leg 7 by bolts, the damping member 71 is located between the load supporting leg 7 and the compression host 21.

[0049] Therefore, the damping member 71 is beneficial to absorbing the vibration energy generated when the plurality of groups of compression mechanisms 2 work, reducing the mechanical impact transmitted to the gas tank 1, reducing the noise, and at the same time, improving the stability of the plurality of groups of compression mechanisms 2 when working.

[0050] Meanwhile, the compression mechanism 2 further comprises an air filter assembly 22, which is installed at the air inlet end of the compression main machine 21, and foreign matters and moisture in the air entering the compression main machine 21 are filtered through the air filter assembly 22, so as to improve the cleanliness of the air filled into the gas tank 1.

[0051] With reference to Figures 1-3 The protection assembly 5 comprises a protection plate 51 and a magnetic lock, the magnetic lock is arranged on the bearing leg 7, a limiting groove is formed in the bearing leg 7, the groove width of the limiting groove is matched with the thickness of the protection plate 51, the magnetic lock is used for fastening the protection plate 51 in the limiting groove, and the magnetic lock is electrically connected with the controller 3.

[0052] The magnetic lock is a device for generating magnetic attraction or magnetic repulsion force by using the principle that a magnetic field is generated by passing current through a coil, when the magnetic lock is powered on, the magnetic lock can be attracted to ferrous or magnetic objects, and when the magnetic lock is powered off, the magnetic attraction between the magnetic lock and the ferrous or magnetic objects disappears, which is a prior art and will not be described in detail here.

[0053] The controller 3 is electrically connected with the unlocking switch 35 and the magnetic lock, when the operator needs to disassemble the protection plate 51 along the bearing leg 7, the unlocking switch 35 can be pressed to control the power-off of the magnetic lock, when the magnetic lock is powered off, the electromagnetic force disappears, and the protection plate 51 can be quickly removed along the bearing leg 7; when the protection plate 51 needs to be installed on the bearing leg 7 again, the bearing leg 7 needs to be limited by the limiting groove, and the magnetic lock needs to be pressed again, so that the protection plate 51 can be quickly fixed on the bearing leg 7 again, and the operation is simple and convenient.

[0054] Therefore, the groove width of the limiting groove is matched with the thickness of the protection plate 51, so that the position of the protection plate 51 installed on the gas tank 1 is limited, the adjustment time of the protection plate 51 installed on the gas tank 1 is reduced, and when the protection plate 51 is limited by the limiting groove and located on the bearing leg 7, the working state of the magnetic lock can be controlled by the controller 3, the electromagnetic force provided by the magnetic lock is used to tightly attract the protection plate 51 to the bearing leg 7, and when the magnetic lock is powered off, the protection plate 51 can be disassembled along the bearing leg 7 without using other mechanical structures to fix the protection plate 51, the operation is simple and convenient, and the practicability is high.

[0055] In addition, the surface of the protection plate 51 towards the compression host 21 abuts against the end surface of the compression host 21, a plurality of flow-through holes 511 are formed on the protection plate 51, the flow-through holes 511 are used for air to enter the compression mechanism 2, because the protection plate 51 abuts against the end surface of the compression host 21, it is beneficial to reduce the gap between the compression host 21 and the protection plate 51, reduce the amount of foreign matter entering the compression host 21 along the gap, at the same time, it is beneficial to reduce the probability of the vibration force generated by the compression host 21 when working being conducted to the protection plate 51, so that the case of generating relatively large noise occurs because of the gap between the protection plate 51 and the end surface of the compression host 21.

[0056] The implementation principle of the parallel control air compressor of the embodiment of the present application is as follows: through the parallel layout of a plurality of groups of compression mechanisms 2, it is beneficial to improve the air charging efficiency of the air tank 1, when the instantaneous high power output demand is required, a plurality of groups of compression mechanisms 2 can work cooperatively or alternately, which is helpful to maintain the stability of the pressure in the air tank 1 and reduce the risk of pressure drop caused by the overload of a single compression mechanism 2, at the same time, through the synchronous or cooperative control of the controller 3, the flexibility can be enhanced, the start and stop of the compression mechanism 2 can be dynamically adjusted according to the air demand, when the current air power is low, a group of compression mechanisms 2 can work independently, the number of groups of air mechanisms working according to the air demand can be adjusted, which is beneficial to reduce the energy consumption, and through the protection assembly 5, the physical damage of the external environment to the compression mechanism 2 can be reduced, the amount of foreign matter entering the compression mechanism 2 can be reduced, which is beneficial to improve the service life.

[0057] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A parallel type control air compressor, characterized by: The gas tank (1) is used for storing compressed gas; A plurality of sets of compression mechanisms (2) are sequentially arranged on the gas tank (1) along the length direction of the gas tank (1) and are connected to the gas tank (1), and the plurality of sets of compression mechanisms (2) are used for inputting compressed gas into the gas tank (1); A controller (3) is arranged on the gas tank (1) on one side of the compression mechanism (2), and the controller (3) is used for controlling the plurality of sets of compression mechanisms (2) to work synchronously, or the controller (3) is used for controlling the plurality of sets of compression mechanisms (2) to work cooperatively; An output assembly (4) is used for outputting compressed gas in the gas tank (1); A protection assembly (5) is arranged on the gas tank (1) on both sides of the plurality of sets of compression mechanisms (2), and the protection assembly (5) is used for protecting the plurality of sets of compression mechanisms (2).

2. The parallel control air compressor according to claim 1, characterized in that: The output assembly (4) comprises a main output pipeline (41) and a plurality of sets of branch pipelines (42), one end of the main output pipeline (41) is connected to the gas tank (1), the other end of the main output pipeline (41) is connected to the plurality of sets of branch pipelines (42), the plurality of sets of branch pipelines (42) are used for external connection to gas equipment, a safety valve (6) is arranged between the main output pipeline (41) and the plurality of sets of branch pipelines (42), the safety valve (6) is used for releasing high-pressure gas in the gas tank (1), and the safety valve (6) is electrically connected to the controller (3).

3. The parallel control air compressor according to claim 1, characterized in that: Both sides of the gas tank (1) along the length direction are respectively provided with a bearing leg (7), and the plurality of sets of compression mechanisms (2) are detachably arranged on the bearing leg (7) at the same interval along the length direction of the bearing leg (7).

4. The parallel control air compressor according to claim 3, characterized in that: The compression mechanism (2) comprises two sets of compression main machines (21), the output ends of the two sets of compression main machines (21) are simultaneously connected to the gas tank (1), the two sets of compression main machines (21) are synchronously started and stopped, and the two sets of compression main machines (21) are electrically connected to the controller (3).

5. The control parallel type air compressor according to claim 4, wherein: The protection assembly (5) comprises a protection plate (51) and a magnetic lock, the magnetic lock is arranged on the bearing leg (7), a limiting groove is formed in the bearing leg (7), the groove width of the limiting groove is matched with the thickness of the protection plate (51), the magnetic lock is used for fastening the protection plate (51) in the limiting groove, and the magnetic lock is electrically connected to the controller (3).

6. The control parallel type air compressor according to claim 5, wherein: The surface of the protection plate (51) facing the compression main machine (21) abuts against the end face of the compression main machine (21), a plurality of flow holes (511) are formed in the protection plate (51), and the flow holes (511) are used for allowing air to enter the compression mechanism (2).

7. The parallel control air compressor according to claim 5, characterized in that: The bearing leg (7) is provided with a damping member (71).

8. The parallel control air compressor according to claim 1, characterized in that: The controller (3) is provided with a plurality of groups of control buttons (31) corresponding to the number of compression mechanisms (2), and each group of control buttons (31) is used to adjust the working state of the corresponding compression mechanism (2).

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