Engineering screw air compressor convenient to maintain

Abstract

The utility model discloses an engineering screw air compressor convenient to maintain, which comprises a compressor unit, an oil gas barrel, a cooler and an air filter, the output end of the compressor unit is provided with a connecting pipe connected with the oil gas barrel, and the oil gas barrel is provided with a gas output port and an oil liquid output port. The air filter is provided with an oil gas input port and an air output port, the oil gas input port is connected with the gas output port, an air filter element is installed on the air filter, an air flow channel is formed in the air filter element, and an oil gas flow channel and an air output flow channel are integrated in the air filter; the input end of the oil-gas flow channel is communicated with the oil-gas input port, and the output end of the oil-gas flow channel is communicated with the air filter element; one end of the air output flow channel communicates with the air flow channel, and the other end communicates with the air output port; the cooler is integrated with a first cooling flow channel, the air output port is connected with a gas conveying pipe, and the gas conveying pipe is connected with the input end of the first cooling flow channel.

Description

Technical Field

[0001] The utility model relates to a screw air compressor for engineering which is convenient for maintenance. Background Technique

[0002] In the prior art, such as the Chinese utility model patent document with the publication number CN214887720U, it discloses an oil-gas separator which is convenient for maintenance. It includes a separator barrel body, a barrel cover and a hinge member. The separator barrel body has a cavity with an open top end. The hinge member is installed on the separator barrel body and is connected to the barrel cover. The barrel cover movably seals the top of the cavity along with the hinge member. An oil-gas inlet, an air outlet and an oil outlet are arranged on the side of the separator barrel body. The oil-gas inlet, the air outlet and the oil outlet are all communicated with the cavity. A drain pipe extends out from the bottom of the separator barrel body, and the drain pipe is communicated with the cavity.

[0003] Based on the above, in the prior art, for the oil-gas separation of the air compressor, the oil-gas separation filter element is installed in the oil-gas barrel. The compressor transports the oil-liquid mixture to the oil-gas barrel, and after the gas-liquid separation in the barrel, it is output. This structure is not conducive to replacing the air filter element in the later stage and needs to be further improved. Content of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a screw air compressor for engineering which is convenient for maintenance.

[0005] A screw air compressor for engineering which is convenient for maintenance designed according to this purpose includes a compression unit, an oil-gas barrel and a cooler. A connecting pipe is arranged at the output end of the compression unit and is connected to the oil-gas barrel. The oil-gas barrel is provided with a gas output port and an oil output port. An air filter is also included. The air filter is provided with an oil-gas input port and an air output port. The oil-gas input port is connected to the gas output port. An air filter element is installed on the air filter. An air flow channel is arranged inside the air filter element. An oil-gas flow channel and an air output flow channel are integrated inside the air filter.

[0006] The input end of the oil-gas flow channel is communicated with the oil-gas input port, and the output end of the oil-gas flow channel is communicated with the air filter element.

[0007] One end of the air output flow channel is communicated with the air flow channel, and the other end is communicated with the air output port.

[0008] The cooler is integrated with a first cooling flow channel. The air output port is connected with a gas delivery pipe, and the gas delivery pipe is connected to the input end of the first cooling flow channel.

[0009] Preferably, an extension pipe is provided at one end of the air output channel connected to the air channel. The lower end of the air channel is open, and the extension pipe extends into the air channel.

[0010] Preferably, an oil filter is installed on the oil output port. The oil filter is provided with a first port, a second port, a third port, and a fourth port;

[0011] The input end of the first port is connected to the oil output port;

[0012] The second port of the oil filter is connected to an oil output pipe;

[0013] The third port of the oil filter is provided with an oil return pipe;

[0014] The fourth port of the oil filter is provided with an oil supply pipe, and the oil supply pipe is connected to the compressor unit;

[0015] The cooler is integrated with a second cooling channel. The input end of the second cooling channel is provided with a first joint, and its output end is provided with a second joint. The output end of the oil output pipe is connected to the first joint, and the input end of the oil return pipe is connected to the second joint;

[0016] The oil filter is detachably installed with an oil filter element;

[0017] A temperature control valve element is installed in the oil filter, and the temperature control valve element is used to control the communication state of each port;

[0018] In the first state of the temperature control valve element, the output end of the first port is communicated with the input end of the oil filter element, and the output end of the oil filter element is communicated with the fourth port;

[0019] In the second state of the temperature control valve element, the output end of the first port is communicated with the input end of the oil output pipe, the output end of the oil return pipe is communicated with the input end of the oil filter element, and the output end of the oil filter element is communicated with the fourth port.

[0020] Preferably, the output end of the first cooling channel is connected to an exhaust pipe.

[0021] Compared with the prior art, by means of an external air filter element, during future maintenance, the external air filter element is convenient to disassemble and there is no need to open the oil-gas barrel, so as to improve the maintenance efficiency and reduce the operation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 One of the three-dimensional structure diagrams of the air compressor;

[0023] Figure 2 It is the second three-dimensional structure schematic diagram of the air compressor;

[0024] Figure 3 It is the three-dimensional structure schematic diagram of the air filter with an air filter element;

[0025] Figure 4 It is the sectional structure schematic diagram of the air filter with an air filter element. Specific embodiments

[0026] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Refer to Figures 1 - 4 , an engineering screw air compressor convenient for maintenance, including a compressor unit 10, an oil-gas barrel 20 and a cooler 30. A connecting pipe 110 is provided at the output end of the compressor unit 10 and connected to the oil-gas barrel 20. The oil-gas barrel 20 is provided with a gas output port and an oil output port. It further includes an air filter 40. The air filter 40 is provided with an oil-gas input port 410 and an air output port 440. The oil-gas input port 410 is connected to the gas output port. An air filter element 50 is installed on the air filter 40. An air flow channel 510 is provided inside the air-liquid separation filter element 50. An oil-gas flow channel 420 and an air output flow channel 430 are integrated inside the air filter 40;

[0028] The input end of the oil-gas flow channel 420 is communicated with the oil-gas input port 410, and the output end of the oil-gas flow channel 420 is communicated with the air filter element 50;

[0029] One end of the air output flow channel 430 is communicated with the air flow channel 510, and the other end is communicated with the air output port 440;

[0030] The cooler 30 is integrated with a first cooling flow channel. The air output port 440 is connected to a gas delivery pipe 330. The gas delivery pipe 330 is connected to the input end of the first cooling flow channel.

[0031] Based on the above embodiments, refer to Figure 4 , the air output from the oil-gas barrel 20 carries oil and enters the air filter 40. The air carrying oil enters the air filter element 50 through the oil-gas flow channel 420. Under the filtering action of the air filter element 50, the oil is blocked by the filter element to achieve filtration, while the air enters the air flow channel 510 inside the filter element, then enters the air output flow channel 430 through the air flow channel 510, and finally is delivered to the cooler 30 from the air output port 440.

[0032] In the present utility model, the cooler 30 adopts an air-cooled cooler.

[0033] See Figure 4 , an extension pipe 450 is provided at one end of the connection between the air output flow channel 430 and the air flow channel 510. The lower end of the air flow channel 510 is open, and the extension pipe 450 extends into the air flow channel 510. Since the air carries the oil and flows upward from the bottom of the filter element, the extension pipe 450 can raise the input port of the air so that the air carrying the oil flows upward for a certain distance before entering the interior from the upper port of the extension pipe 450. So that the oil is fully filtered by the air filter 50.

[0034] See Figure 1 and Figure 2 , an oil filter 610 is installed on the oil output port. The oil filter 610 is provided with a first port, a second port, a third port and a fourth port;

[0035] The input end of the first port is connected to the oil output port;

[0036] The second port of the oil filter 610 is connected with an oil output pipe 620;

[0037] The third port of the oil filter 610 is provided with an oil return pipe 630;

[0038] The fourth port of the oil filter 610 is provided with an oil supply pipe 640, and the oil supply pipe 640 is connected to the compressor unit 10;

[0039] The cooler 30 is integrated with a second cooling flow channel. The input end of the second cooling flow channel is provided with a first joint 310, and its output end is provided with a second joint 320. The output end of the oil output pipe 620 is connected to the first joint 310, and the input end of the oil return pipe 630 is connected to the second joint 320;

[0040] The oil filter 610 is detachably installed with an oil filter element 70;

[0041] A temperature control valve core is installed in the oil filter 610, and the temperature control valve core is used to control the communication state of each port;

[0042] In the first state of the temperature control valve core, the output end of the first port is communicated with the input end of the oil filter element 70, and the output end of the oil filter element 70 is communicated with the fourth port;

[0043] In the second state of the temperature control valve core, the output end of the first port is communicated with the input end of the oil output pipe 620, the output end of the oil return pipe 630 is communicated with the input end of the oil filter element 70, and the output end of the oil filter element 70 is communicated with the fourth port.

[0044] The temperature control valve core adopts an existing commercially available product.

[0045] In the present utility model, the first state of the temperature control valve core is that the oil fluid is in a normal temperature state. In this state, the oil fluid output from the oil-gas barrel 20 can be supplied to the compressor unit 10 without being cooled. Therefore, in this state, the oil fluid is output from the oil fluid output port, passes through the first port and the input end of the oil fluid filter 70, and after being filtered by the oil fluid filter 70, is output from the output end of the oil fluid filter 70 to the fourth port of the oil fluid filter 610, and finally is supplied to the compressor unit 10 through the oil fluid supply pipe 640.

[0046] In the present utility model, the second state of the temperature control valve core is that the oil fluid is in a high temperature state. In this state, the oil fluid output from the oil-gas barrel 20 needs to be cooled before being supplied to the compressor unit 10. Therefore, in this state, the oil fluid is output from the oil fluid output port, passes through the first port and the oil fluid output pipe 620 and is input into the cooler 30 for cooling, then returns to the input end of the oil fluid filter 70 through the oil fluid return pipe 630, and after being filtered by the oil fluid filter 70, is output from the output end of the oil fluid filter 70 to the fourth port of the oil fluid filter 610, and finally is supplied to the compressor unit 10 through the oil fluid supply pipe 640.

[0047] See Figure 1 , the output end of the first cooling flow channel is connected with an exhaust pipe 340.

[0048] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0049] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An engineering screw air compressor convenient for maintenance, comprising a compressor unit (10), an oil-gas barrel (20) and a cooler (30). A connecting pipe (110) is arranged at the output end of the compressor unit (10) and is connected to the oil-gas barrel (20). The oil-gas barrel (20) is provided with a gas output port and an oil output port, and is characterized in that: It further includes an air filter (40). The air filter (40) is provided with an oil-gas input port (410) and an air output port (440). The oil-gas input port (410) is connected to the gas output port. An air filter element (50) is installed on the air filter (40). An air flow channel (510) is provided inside the air-liquid separation filter element (50). An oil-gas flow channel (420) and an air output flow channel (430) are integrated inside the air filter (40). The input end of the oil-gas flow channel (420) is communicated with the oil-gas input port (410), and the output end of the oil-gas flow channel (420) is communicated with the air filter element (50). One end of the air output flow channel (430) is communicated with the air flow channel (510), and the other end is communicated with the air output port (440). The cooler (30) is integrated with a first cooling flow channel. The air output port (440) is connected to a gas delivery pipe (330), and the gas delivery pipe (330) is connected to the input end of the first cooling flow channel.

2. The engineering screw air compressor convenient for maintenance according to claim 1, wherein: An extension pipe (450) is provided at the connection end of the air output flow channel (430) and the air flow channel (510). The lower end of the air flow channel (510) is open, and the extension pipe (450) extends into the air flow channel (510).

3. A screw air compressor for engineering use that is convenient for maintenance, characterized in that: An oil filter (610) is installed on the oil output port. The oil filter (610) is provided with a first port, a second port, a third port, and a fourth port. The input end of the first port is connected to the oil output port. The second port of the oil filter (610) is connected to an oil output pipe (620). The third port of the oil filter (610) is provided with an oil return pipe (630). The fourth port of the oil filter (610) is provided with an oil supply pipe (640), and the oil supply pipe (640) is connected to the compressor unit (10). The cooler (30) is integrated with a second cooling flow channel. A first joint (310) is provided at the input end of the second cooling flow channel, and a second joint (320) is provided at its output end. The output end of the oil output pipe (620) is connected to the first joint (310), and the input end of the oil return pipe (630) is connected to the second joint (320). The oil filter (610) is detachably installed with an oil filter element (70). A temperature control valve core is installed inside the oil filter (610), and the temperature control valve core is used to control the communication state of each port. In the first state of the temperature control valve core, the output end of the first port is communicated with the input end of the oil filter element (70), and the output end of the oil filter element (70) is communicated with the fourth port. In the second state of the temperature control valve core, the output end of the first port is communicated with the input end of the oil output pipe (620), the output end of the oil return pipe (630) is communicated with the input end of the oil filter element (70), and the output end of the oil filter element (70) is communicated with the fourth port.

4. An engineering screw air compressor convenient for maintenance according to claim 1, characterized in that: An exhaust pipe (340) is connected to the output end of the first cooling flow channel.

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