Cooling device of screw air compressor

Abstract

The invention provides a screw type air compressor cooling device, and relates to the technical field of screw type air compressors. A compression tank is fixedly installed at the top position of the equipment frame, a supporting frame is fixedly installed at the rear end position of the top of the compression tank, a screw type air compressor body is fixedly installed at the top position of the supporting frame, and an air inlet pipe is arranged at the rear position of the top of the screw type air compressor body. The oil liquid cooling pipe body is located in a water source of the pipe body cooling box, the oil temperature is reduced in a water cooling mode, meanwhile, the motor is controlled to drive the propeller blades to rotate, water flow is stirred to form forced convection, the heat exchange efficiency of the oil liquid cooling pipe body and water is further improved, and the design is equivalent to adding a stirring function on the basis of traditional water cooling. And cooling water can take away heat of the oil cooling pipe body more quickly. The problems that the water temperature in the pipe body cooling box is prone to rising due to heat exchange, and good cooling performance cannot be continuously kept are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of screw air compressors, and in particular to a cooling device for a screw air compressor. Background Art

[0002] The screw compressor cylinder is equipped with a pair of helical yin and yang rotors that mesh with each other. Both rotors have several concave teeth and rotate in opposite directions. The gap between the rotors and between the casing and the rotors is only 5-10 wires. The main rotor is driven by an electric motor, and the other rotor is driven by the oil film formed by the main rotor through oil injection, or it is driven by synchronous gears at the main rotor end and the concave rotor end, so there is no metal contact in the drive. The length and diameter of the rotor determine the exhaust volume and exhaust pressure. The longer the rotor, the higher the pressure, and the larger the rotor diameter, the greater the flow. When the spiral rotor groove passes the intake port, it is filled with gas. When the rotor rotates, the rotor groove is closed by the casing wall to form a compression chamber. When the rotor groove is closed, lubricating oil is sprayed into the compression chamber to seal, cool and lubricate. When the rotor rotates to compress the lubricant and gas, the volume of the compression chamber decreases, and the oil-gas mixture is compressed toward the exhaust port. When the compression chamber passes the exhaust port, the oil-gas mixture is discharged from the compressor, completing a process of intake, compression and exhaust.

[0003] Understanding the application of existing screw air compressor cooling:

[0004] 1. The cooling efficiency is limited. The traditional cooling structure has insufficient cooling effect on the lubricating oil, making it difficult to quickly reduce the oil temperature, affecting the recycling of the lubricating oil and the stable operation of the air compressor.

[0005] 2. The heat exchange effect is poor. The heat exchange path between the cooling medium and the high-temperature lubricating oil is short and the contact area is small, resulting in insufficient heat transfer and slow cooling speed.

[0006] 3. Lack of effective water temperature control means. The water temperature in the tube cooling box is easily increased due to heat exchange, and good cooling performance cannot be maintained continuously, affecting the stability of the cooling effect.

[0007] 4. The air flow is not smooth during the cooling process, which cannot fully take away the heat in the tube cooling box, further reducing the cooling efficiency.

[0008] Therefore, in view of this, the existing structure and defects are studied and improved, and a screw air compressor cooling device is provided to achieve a more practical purpose. Summary of the Invention

[0009] In order to solve the above technical problems, the present invention provides a screw air compressor cooling device to solve the problems that the existing traditional cooling structure has insufficient cooling effect on the lubricating oil, it is difficult to quickly reduce the oil temperature, and the heat exchange path between the cooling medium and the high-temperature lubricating oil is short and the contact area is small, resulting in insufficient heat transfer and the water temperature in the tube cooling box is easily increased due to heat exchange, and good cooling performance cannot be maintained continuously. The air flow during the cooling process is not smooth and the heat in the tube cooling box cannot be fully taken away.

[0010] The present invention provides a screw air compressor cooling device, which specifically includes: an equipment frame; a compression tank is fixedly installed at the top position of the equipment frame, a support frame is fixedly installed at the top rear end position of the compression tank, a screw air compressor body is fixedly installed at the top position of the support frame, an air intake pipe is provided at the top rear position of the screw air compressor body, the front end position of the screw air compressor body is fixedly connected to the middle and rear position of the top of the screw air compressor body through a pipeline, a gas exhaust pipe is fixedly installed at the top front end position of the compression tank, a delivery pipe A is provided at the bottom right position of the compression tank, an oil cooling pipe body is fixedly installed at the front end position of the delivery pipe A, the internal position of the oil cooling pipe body is spirally designed, and the oil cooling pipe body is located on the right side of the compression tank.

[0011] Furthermore, the front end of the oil cooling pipe body is connected to one end of the delivery pipe B, the other end of the delivery pipe B is connected to the transmission pump body, and the delivery pipe B is located at the front end of the compression tank.

[0012] Furthermore, the other end of the transmission pump body is connected to the pressure stabilizer, the other end of the pressure stabilizer is connected to the exhaust pipe valve, and the other end of the exhaust pipe valve is connected to the oil injection position of the screw air compressor body.

[0013] Furthermore, the transmission pump body, the pressure stabilizer and the exhaust pipe valve are located on the left side of the compression tank.

[0014] Furthermore, a tube cooling box is fixedly installed on the right side of the equipment rack, a control motor is provided at the lower front end of the tube cooling box, and the rear end shaft of the control motor is fixedly connected to the middle position of the front end of the propeller blade.

[0015] Furthermore, the propeller blades are located at a lower position inside the tube cooling box, the oil cooling tube body is connected to an upper position inside the tube cooling box, and the oil cooling tube body is located directly above the propeller blades.

[0016] Furthermore, a box cover frame is fixedly installed at the top position of the tube cooling box, and the front and rear ends of the box cover frame are designed with a slope. A strip groove is provided at the slope position of the front and rear ends of the box cover frame, and a fan is fixedly installed at the internal position of the box cover frame.

[0017] Furthermore, an extension plate is provided at the front end of the box cover frame, and a drainage fan is fixedly installed at the top of the extension plate of the box cover frame. The drainage fan is located in front of the strip groove at the front end of the box cover frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The interior of the oil cooling tube adopts a spiral design, which increases the contact area and path length between the fluid and the tube wall, prolongs the heat exchange time, and enables the high-temperature lubricating oil in the oil cooling tube body to fully exchange heat with the tube wall, thereby improving the cooling effect. The spiral structure can increase the flow path of the hot oil in the tube, thereby releasing heat more fully.

[0020] The oil cooling tube is located in the water source of the tube cooling box, using water cooling to reduce the oil temperature. At the same time, the motor is controlled to drive the propeller blades to rotate, stirring the water flow to form forced convection, further improving the heat exchange efficiency between the oil cooling tube and the water. This design is equivalent to adding a stirring function on the basis of traditional water cooling, so that the cooling water can take away the heat of the oil cooling tube more quickly.

[0021] The fan inside the box cover frame generates wind to blow downwards, cooling the water source in the tube cooling box by wind and controlling the water temperature. The drainage fan blows forward, forming negative pressure behind it, and extracting the hot air in the box cover frame and the tube cooling box through the front strip groove. At the same time, the rear strip groove introduces external air source, forming a good airflow circulation, realizing wind heat exchange, further reducing the water temperature, ensuring that the water source in the tube cooling box always maintains a low temperature, and continuously providing efficient cooling capacity for the oil cooling tube.

[0022] After the transmission pump body extracts the cooled oil, it passes through the pressure stabilizer and the exhaust pipe valve in turn. The pressure stabilizer stabilizes the pressure of the cooling oil to prevent the cooling oil pressure entering the screw air compressor body from being too high or too low, thereby ensuring the stable operation of the lubrication system; the exhaust pipe valve discharges the air inside the cooling oil to prevent air from entering and affecting the lubrication effect, ensuring that the lubricating oil can normally perform its sealing, cooling and lubricating functions, thereby extending the service life of the air compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0024] In the attached figure:

[0025] Figure 1 A schematic diagram of a screw air compressor cooling device and an air compressor top view according to an embodiment of the present invention is shown;

[0026] Figure 2It shows a left-side structural schematic diagram of a screw air compressor cooling device and an air compressor according to an embodiment of the present invention;

[0027] Figure 3 It shows a schematic diagram of the left side structure of a screw air compressor cooling device and an air compressor according to an embodiment of the present invention;

[0028] Figure 4 It shows a schematic structural diagram of a screw air compressor cooling device and an air compressor from the right side according to an embodiment of the present invention;

[0029] Figure 5 It shows a schematic diagram of the right side structure of a screw air compressor cooling device and a half-section view of the air compressor according to an embodiment of the present invention;

[0030] Figure 6 It shows a schematic diagram of the left side structure of a screw air compressor cooling device and a half-section view of the air compressor according to an embodiment of the present invention;

[0031] Figure 7 It shows a schematic diagram of a half-section left side structure of a tube cooling box and a box cover frame according to an embodiment of the present invention;

[0032] Figure 8 A schematic diagram of a half-section side view of the structure of a tube cooling box and a box cover frame according to an embodiment of the present invention is shown.

[0033] Reference Signs List

[0034] 1. Equipment rack; 101. Compression tank; 102. Support frame; 103. Screw air compressor body; 104. Gas exhaust pipe; 105. Delivery pipe A; 106. Oil cooling pipe body; 107. Delivery pipe B; 108. Transmission pump body; 109. Voltage stabilizer; 110. Exhaust pipe valve; 2. Pipe cooling box; 201. Control motor; 202. Propeller blades; 3. Box cover frame; 301. Fan; 302. Drainage fan. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0036] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present disclosure have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined in this manner in the embodiments of the present disclosure.

[0037] The terms "first", "second" and similar terms used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms "one", "an" or "the" and similar terms do not indicate a quantitative limitation, but rather indicate the presence of at least one. Similarly, the terms "include" or "comprise" and similar terms mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. In the following description, spatial and directional terms such as "upper", "lower", "front", "back", "top", "bottom", "vertical" and "horizontal" may be used to describe the embodiments of the present disclosure, but it should be understood that these terms are only for the convenience of describing the embodiments shown in the figures and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connect", "couple", "fixed" and "attached" may refer to a direct connection between two elements or structures without other elements or structures between them, or may refer to an indirect connection between two elements or structures through an intermediate element or structure, unless otherwise expressly stated herein.

[0038] Example:

[0039] As attached Figure 1 To the attached Figure 8 As shown:

[0040] The present invention provides a screw air compressor cooling device, comprising: an equipment frame 1; a compression tank 101 is fixedly installed at the top position of the equipment frame 1, a support frame 102 is fixedly installed at the top rear end position of the compression tank 101, a screw air compressor body 103 is fixedly installed at the top position of the support frame 102, an air intake pipe is provided at the top rear position of the screw air compressor body 103, the front end position of the screw air compressor body 103 is fixedly connected to the top middle and rear position of the screw air compressor body 103 through a pipeline, a gas exhaust pipe 104 is fixedly installed at the top front end position of the compression tank 101, a delivery pipe A105 is provided at the bottom right position of the compression tank 101, an oil cooling pipe body 106 is fixedly installed at the front end position of the delivery pipe A105, the internal position of the oil cooling pipe body 106 is spirally designed, and the oil cooling pipe body 106 is located on the right side of the compression tank 101.

[0041] Among them, the front end position of the oil cooling tube body 106 is connected to one end position of the delivery pipe B107, and the other end position of the delivery pipe B107 is connected to the transmission pump body 108. The delivery pipe B107 is located at the front end position of the compression tank 101.

[0042] Among them, the other end position of the transmission pump body 108 is connected to the regulator 109, the other end position of the regulator 109 is connected to the exhaust pipe valve 110, and the other end position of the exhaust pipe valve 110 is connected to the oil injection position of the screw air compressor body 103.

[0043] Among them, the transmission pump body 108, the pressure stabilizer 109 and the exhaust pipe valve 110 are located on the left side of the compression tank 101. The function of the pressure stabilizer 109 is to stabilize the pressure of the cooling oil delivered by the transmission pump body 108 to prevent the cooling oil from entering the screw air compressor body 103 from having too high or too low a pressure. The function of the exhaust pipe valve 110 is to discharge the air inside the cooling oil supplied by the pressure stabilizer 109.

[0044] Among them, a tube cooling box 2 is fixedly installed on the right side of the equipment rack 1, and a control motor 201 is set at the lower front end of the tube cooling box 2. The rear end shaft of the control motor 201 is fixedly connected to the middle position of the front end of the propeller blade 202.

[0045] The propeller blade 202 is located at the lower inner portion of the tube cooling box 2 , the oil cooling tube 106 is connected to the upper inner portion of the tube cooling box 2 , and the oil cooling tube 106 is located directly above the propeller blade 202 .

[0046] Among them, a box cover frame 3 is fixedly installed at the top position of the tube cooling box 2, and the front and rear ends of the box cover frame 3 are designed with a slope. The slope positions of the front and rear ends of the box cover frame 3 are both provided with a strip groove, and a fan 301 is fixedly installed at the internal position of the box cover frame 3.

[0047] Among them, an extension plate is set at the front end position of the box cover frame 3, and a drainage fan 302 is fixedly installed at the top position of the extension plate of the box cover frame 3. The drainage fan 302 is located in front of the front end strip groove of the box cover frame 3.

[0048] When using:

[0049] First, place the entire equipment rack 1 in a suitable position, and inject water into the interior of the tube cooling box 2 so that the water inside the tube cooling box 2 covers the top of the oil cooling tube 106;

[0050] During operation, the screw air compressor body 103 draws in air through the air inlet pipe. Lubricating oil is sprayed into the compressor during the compression process to form an oil-gas mixture, which is then discharged into the compression tank 101 through a pipeline to separate the oil and gas. The separated hot oil flows from the bottom of the compression tank 101 through the delivery pipe A105 into the oil cooling pipe body 106, and the gas is transported by the gas discharge pipe 104 to the subsequent gas use link.

[0051] The hot oil entering the oil cooling pipe body 106 is designed with a spiral inside, which increases the contact area between the fluid and the pipe wall and the path length, prolongs the heat exchange time and improves the cooling effect. The oil cooling pipe body 106 is located in the water source of the pipe cooling box 2, and the oil temperature inside the oil cooling pipe body 106 is reduced by water cooling. The cooled oil is pumped out by the transmission pump body 108 through the delivery pipe B107, passes through the voltage stabilizer 109 and the exhaust pipe valve 110 in sequence, and finally returns to the oil filling position of the screw air compressor body 103, completing the recycling of the lubricating oil.

[0052] The control motor 201 at the front end of the tube cooling box 2 drives the propeller blade 202 to rotate, stirring the water flow to form forced convection, thereby improving the heat exchange efficiency between the oil cooling tube 106 and the water, and further improving the heat dissipation efficiency of the oil cooling tube 106.

[0053] Start the fan 301, and the wind generated by the fan 301 will blow downward to cool the water source inside the tube cooling box 2 by wind, and control the water temperature of the water source inside the tube cooling box 2. After starting the drainage fan 302, the drainage fan 302 blows forward, and the hot air and wind source inside the box cover frame 3 and the tube cooling box 2 are extracted by negative pressure from the rear of the drainage fan 302 through the strip groove at the front end of the box cover frame 3, and the strip groove at the rear end of the box cover frame 3 introduces the external wind source, thereby achieving a wind heat exchange effect.

[0054] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A screw air compressor cooling device, characterized in that: include: An equipment rack (1); a compression tank (101) is fixedly installed at the top position of the equipment rack (1), a support rack (102) is fixedly installed at the top rear position of the compression tank (101), a screw air compressor body (103) is fixedly installed at the top position of the support rack (102), an air intake pipe is provided at the top rear position of the screw air compressor body (103), the front end position of the screw air compressor body (103) is fixedly connected to the top middle rear position of the screw air compressor body (103) through a pipeline, a gas exhaust pipe (104) is fixedly installed at the top front end position of the compression tank (101), a delivery pipe A (105) is provided at the bottom right position of the compression tank (101), an oil cooling pipe body (106) is fixedly installed at the front end position of the delivery pipe A (105), the inner position of the oil cooling pipe body (106) is spirally designed, and the oil cooling pipe body (106) is located at the right position of the compression tank (101).

2. A screw air compressor cooling device according to claim 1, characterized in that: The front end of the oil cooling pipe (106) is connected to one end of the delivery pipe B (107), and the other end of the delivery pipe B (107) is connected to the transmission pump body (108). The delivery pipe B (107) is located at the front end of the compression tank (101).

3. A screw air compressor cooling device according to claim 2, characterized in that: The other end of the transmission pump body (108) is connected to the pressure stabilizer (109), the other end of the pressure stabilizer (109) is connected to the exhaust pipe valve (110), and the other end of the exhaust pipe valve (110) is connected to the oil injection position of the screw air compressor body (103).

4. A screw air compressor cooling device as claimed in claim 3, characterized in that: The transmission pump body (108), the pressure stabilizer (109) and the exhaust pipe valve (110) are located on the left side of the compression tank (101).

5. The screw air compressor cooling device according to claim 1, characterized in that: A tube cooling box (2) is fixedly installed at the right side of the equipment frame (1), a control motor (201) is provided at the lower front end of the tube cooling box (2), and a rear end rotating shaft of the control motor (201) is fixedly connected to the middle position of the front end of the propeller blade (202).

6. A screw air compressor cooling device according to claim 5, characterized in that: The propeller blade (202) is located at a lower position inside the tube cooling box (2), the oil cooling tube (106) is connected to an upper position inside the tube cooling box (2), and the oil cooling tube (106) is located directly above the propeller blade (202).

7. A screw air compressor cooling device according to claim 6, characterized in that: A box cover frame (3) is fixedly installed at the top position of the tube cooling box (2), and the front and rear ends of the box cover frame (3) are designed with a slope. The front and rear ends of the box cover frame (3) are both provided with a strip groove at the slope position, and a fan (301) is fixedly installed at an internal position of the box cover frame (3).

8. A screw air compressor cooling device according to claim 7, characterized in that: An extension plate is provided at the front end of the box cover frame (3), and a drainage fan (302) is fixedly installed at the top of the extension plate of the box cover frame (3), and the drainage fan (302) is located in front of the front end strip groove of the box cover frame (3).

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