Environment-friendly circulating water cooling type vacuum pump

Abstract

The utility model relates to the technical field of vacuum pumps, in particular to an environment-friendly circulating water cooling type vacuum pump which comprises a vacuum pump body. A liquid inlet cavity and a liquid outlet cavity are formed in the upper side and the lower side of the cavity correspondingly, and a plurality of flow channels used for medium flowing are formed in the two sides between the liquid inlet cavity and the liquid outlet cavity; a hollow cooling sleeve is arranged outside the rotor rotating shaft in the cavity; according to the motor for the vacuum pump, a water pump conveys a cooling medium into a cooling sleeve and a plurality of flow channels, heat on and in a machine shell can be taken away along with flowing of the cooling medium, heat dissipation is conducted on the machine shell and the interior of the motor in a water cooling mode, effective heat dissipation of the motor for the vacuum pump is facilitated, and the service life of the vacuum pump is guaranteed; the cooling medium flows back into the heat dissipation pipe, heat dissipation can be conducted on the high-temperature cooling medium under rotation of the fan blades, the cooling medium after heat dissipation can flow back into the water tank, and therefore recycling of the cooling medium is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to an environmentally friendly circulating water cooling type vacuum pump. Background Art

[0002] A vacuum pump refers to a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to create a vacuum; the vacuum pump is mainly composed of a pump body, rotor and blades, motor, inlet and exhaust ports and valves; currently, vacuum pumps have been widely used in water supply, pharmaceutical and other fields.

[0003] At present, when the motor of a vacuum pump is running, a certain amount of heat will be generated due to the current passing through the resistors, inductors and other components inside the motor. Although the motor housing is equipped with fins and heat dissipation ports to help dissipate heat, the efficiency of these traditional heat dissipation methods is not ideal. Especially when the vacuum pump is running for a long time and at high power, the accumulation of heat becomes particularly significant, causing the motor temperature to rise rapidly. This not only affects the performance of the motor, but may also shorten its service life and even damage the overall equipment. In view of this, we propose an environmentally friendly circulating water cooling vacuum pump. Utility Model Content

[0004] The purpose of the utility model is to provide an environmentally friendly circulating water cooling type vacuum pump to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] Environmentally friendly circulating water cooling vacuum pump, including vacuum pump;

[0007] The vacuum pump comprises a pump body, and a motor is installed on the rear side of the pump body;

[0008] The motor includes a casing, a cavity is formed inside the casing, a heat dissipation cavity is formed at the rear side of the cavity, a liquid inlet cavity and a liquid discharge cavity are formed at the upper and lower sides of the cavity respectively, a plurality of flow channels for medium flow are formed at both sides between the liquid inlet cavity and the liquid discharge cavity, a liquid inlet pipe passing through to the outside is formed at the liquid inlet cavity, and a liquid discharge pipe passing through to the outside is formed at the liquid discharge cavity; a rotor shaft is rotatably mounted in the cavity, the rear end of the rotor shaft passes through the heat dissipation cavity and blades are coaxially fixed thereto; a hollow cooling jacket is formed outside the rotor shaft in the cavity, the cooling jacket is fitted with the inner wall of the cavity, and the liquid inlet pipe and the liquid discharge pipe are both connected to the cooling jacket;

[0009] A hollow water tank is provided under the casing, a water pump is installed in the water tank, and the water outlet of the water pump is connected with the liquid inlet pipe; a fixing frame is installed at the top rear side of the water tank, connecting cavities are provided at the top and bottom of the fixing frame, and a plurality of heat dissipation pipes for cooling the medium are provided between the two connecting cavities; a reflux pipe penetrating into the water tank is installed at the bottom of the fixing frame, and a connecting pipe connected with the drain pipe is installed at the top of the fixing frame.

[0010] As a preferred technical solution of the present utility model, the cross-sectional shape of the fixing frame is in a square shape, and the fixing frame is fixedly connected to the water tank by bolts.

[0011] As a preferred technical solution of the utility model, a liquid replenishing port is installed on the top of the water tank, and a plug is installed at the liquid replenishing port.

[0012] As a preferred technical solution of the utility model, a mounting frame is provided at the bottom of the casing, and the mounting frame is fixedly connected to the top of the water tank by bolts.

[0013] As a preferred technical solution of the utility model, the plurality of heat dissipation pipes are linearly distributed with equal spacing, and the heat dissipation pipes are located directly behind the blades.

[0014] As a preferred technical solution of the present invention, the overall shape of the cooling jacket is cylindrical, and the cooling jacket is a product made of aluminum alloy.

[0015] As a preferred technical solution of the utility model, a blocking net is installed at the opening of the heat dissipation cavity, and the blocking net is fixedly connected to the casing by bolts.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. Through the vacuum pump: the water pump transports the cooling medium to the cooling jacket and multiple flow channels. With the flow of the cooling medium, the heat on and inside the casing can be taken away. This design dissipates heat from the casing and the inside of the motor through water cooling, which is beneficial to the effective heat dissipation of the vacuum pump motor and ensures the service life of the vacuum pump;

[0018] 2. Through the multiple heat dissipation pipes, the cooling medium flows back into the heat dissipation pipes. Under the rotation of the fan blades, the high-temperature cooling medium can be cooled. The cooling medium after cooling can flow back into the water tank, which is conducive to the recycling of the cooling medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0021] Figure 3It is a structural schematic diagram of the pump body in the utility model;

[0022] Figure 4 It is a partial structural schematic diagram of the utility model;

[0023] Figure 5 It is a partial structural sectional view of the utility model.

[0024] In the figure:

[0025] 1. Vacuum pump; 10. Pump body; 11. Casing; 111. Cavity; 112. Heat dissipation cavity; 113. Liquid inlet cavity; 114. Liquid discharge cavity; 115. Flow channel; 116. Liquid inlet pipe; 117. Liquid discharge pipe; 118. Baffle; 12. Rotor shaft; 13. Blades; 14. Cooling jacket; 15. Fixing frame; 151. Connecting cavity; 152. Reflux pipe; 16. Heat dissipation pipe; 17. Connecting pipe; 18. Water tank; 181. Liquid filling port; 19. Water pump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] This embodiment provides a technical solution:

[0028] See also Figure 1-Figure 5, an environmentally friendly circulating water cooling vacuum pump, comprises a vacuum pump 1. The vacuum pump 1 comprises a pump body 10, and a motor is installed on the rear side of the pump body 10. The motor comprises a casing 11, a cavity 111 is provided inside the casing 11, a heat dissipation cavity 112 is provided on the rear side of the cavity 111, a liquid inlet cavity 113 and a liquid discharge cavity 114 are provided on the upper and lower sides of the cavity 111 respectively, a plurality of flow channels 115 for medium flow are provided on both sides between the liquid inlet cavity 113 and the liquid discharge cavity 114, a liquid inlet pipe 116 passing through to the outside is provided at the liquid inlet cavity 113, and a liquid discharge pipe 117 passing through to the outside is provided at the liquid discharge cavity 114; a rotor shaft 12 is rotatably installed in the cavity 111, and the rear end of the rotor shaft 12 passes through the heat dissipation cavity 112 and is coaxially fixed with blades 13; a hollow type is provided outside the rotor shaft 12 in the cavity 111 A cooling jacket 14 is provided, the cooling jacket 14 is fitted with the inner wall of the cavity 111, and the liquid inlet pipe 116 and the liquid discharge pipe 117 are both connected to the cooling jacket 14; a hollow water tank 18 is provided below the casing 11, a water pump 19 is installed in the water tank 18, and the water outlet of the water pump 19 is connected to the liquid inlet pipe 116; a fixing frame 15 is installed at the top rear side of the water tank 18, and a connecting cavity 151 is provided at the top and bottom of the fixing frame 15, and a plurality of heat dissipation pipes 16 for cooling medium are provided between the two connecting cavities 151; a reflux pipe 152 penetrating into the water tank 18 is installed at the bottom of the fixing frame 15, and a connecting pipe 17 connected to the liquid discharge pipe 117 is installed at the top of the fixing frame 15.

[0029] In this embodiment, the cross-section of the fixing frame 15 is in a square shape, and the fixing frame 15 is fixedly connected to the water tank 18 by bolts. This design facilitates the installation of multiple heat pipes 16, and the bolt fixing method is reliable and stable.

[0030] In this embodiment, a liquid replenishing port 181 is installed on the top of the water tank 18, and a plug is installed at the liquid replenishing port 181. The provision of the liquid replenishing port 181 facilitates the replenishment of cooling medium into the water tank 18.

[0031] In this embodiment, a mounting frame is provided at the bottom of the housing 11, and the mounting frame is fixedly connected to the top of the water tank 18 by bolts. This design is conducive to stably mounting the motor on the top of the water tank 18.

[0032] In this embodiment, the plurality of heat dissipation pipes 16 are linearly distributed at equal intervals, and the heat dissipation pipes 16 are located directly behind the blades 13. This design facilitates cooling the heat dissipation pipes 16 by the rotation of the blades 13, and facilitates heat dissipation of the cooling medium.

[0033] In this embodiment, the overall shape of the cooling jacket 14 is cylindrical, and the cooling jacket 14 is made of aluminum alloy. The cooling jacket 14 made of aluminum alloy has good thermal conductivity, which is conducive to absorbing the heat of the inner wall of the casing 11 to dissipate heat from the casing 11;

[0034] In this embodiment, a blocking net 118 is installed at the opening of the heat dissipation cavity 112, and the blocking net 118 is fixedly connected to the housing 11 by bolts. The blocking net 118 is provided to close the heat dissipation cavity 112 to prevent the rotating blades 13 from accidentally injuring the staff.

[0035] It should be added that the stator core, stator winding and other structures need to be installed inside the casing 11 in this embodiment, and the stator core can be directly installed in the opening of the cooling sleeve 14 and fit against the inner wall of the cooling sleeve 14. This design is conducive to directly absorbing the heat on the stator core through the cooling sleeve 14, thereby playing a role in heat dissipation for the stator core, etc.

[0036] During specific use, the user first turns on the power of the water pump 19 and the vacuum pump 1, and the water pump 19 and the vacuum pump 1 start working. The water pump 19 inputs the cooling medium in the water tank 18 into the liquid inlet chamber 113 through the liquid inlet pipe 116. At the same time, the cooling medium enters the cooling jacket 14 and the multiple flow channels 115 on both sides through the liquid inlet chamber 113. While flowing, the cooling medium takes away the heat in the cooling jacket 14 and the casing 11. Then the cooling medium enters the drainage chamber 114 and enters the upper connecting chamber 151 through the drainage pipe 117 and the connecting pipe 17. At the same time, the cooling medium enters the multiple heat dissipation pipes 16. At the same time, as the vacuum pump 1 runs, the rotor shaft 12 drives the blades 13 to rotate, and the blades 13 blow wind to the multiple heat dissipation pipes 16. At this time, the cooling medium in the heat dissipation pipes 16 is gradually cooled. Finally, the cooled cooling medium flows back to the water tank 18 through the reflux pipe 152.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An environmentally friendly circulating water cooling vacuum pump, comprising a vacuum pump (1), characterized in that: The vacuum pump (1) comprises a pump body (10), and a motor is installed on the rear side of the pump body (10); The motor comprises a casing (11), a cavity (111) is provided inside the casing (11), a heat dissipation cavity (112) is provided at the rear side of the cavity (111), a liquid inlet cavity (113) and a liquid discharge cavity (114) are provided at the upper and lower sides of the cavity (111), a plurality of flow channels (115) for medium flow are provided at the two sides between the liquid inlet cavity (113) and the liquid discharge cavity (114), a liquid inlet pipe (116) passing through to the outside is provided at the liquid inlet cavity (113), and a liquid discharge cavity (114) is provided at the liquid discharge cavity (114). 14) is provided with a drain pipe (117) extending out to the outside; a rotor shaft (12) is rotatably mounted in the cavity (111), the rear end of the rotor shaft (12) penetrates into the heat dissipation cavity (112) and is coaxially fixed with a blade (13); a hollow cooling jacket (14) is provided in the cavity (111) outside the rotor shaft (12), the cooling jacket (14) is in contact with the inner wall of the cavity (111), and both the liquid inlet pipe (116) and the drain pipe (117) are connected to the cooling jacket (14); A hollow water tank (18) is provided below the casing (11), a water pump (19) is installed in the water tank (18), and the water outlet of the water pump (19) is connected to the liquid inlet pipe (116); a fixing frame (15) is installed at the top rear side of the water tank (18), the top and bottom of the fixing frame (15) are both provided with connecting cavities (151), and a plurality of heat dissipation pipes (16) for cooling medium are provided between the two connecting cavities (151); a return pipe (152) penetrating into the water tank (18) is installed at the bottom of the fixing frame (15), and a connecting pipe (17) connected to the liquid discharge pipe (117) is installed at the top of the fixing frame (15).

2. The environmentally friendly circulating water cooling vacuum pump according to claim 1 is characterized in that: The cross-sectional shape of the fixing frame (15) is in the shape of a square, and the fixing frame (15) is fixedly connected to the water tank (18) by means of bolts.

3. The environmentally friendly circulating water cooling vacuum pump according to claim 1 is characterized in that: A liquid replenishing port (181) is installed on the top of the water tank (18), and a plug is installed at the liquid replenishing port (181).

4. The environmentally friendly circulating water cooling vacuum pump according to claim 1 is characterized in that: A mounting frame is provided at the bottom of the casing (11), and the mounting frame is fixedly connected to the top of the water tank (18) by bolts.

5. The environmentally friendly circulating water cooling vacuum pump according to claim 1 is characterized in that: The plurality of heat dissipation pipes (16) are linearly distributed at equal intervals, and the heat dissipation pipes (16) are located directly behind the blades (13).

6. The environmentally friendly circulating water cooling vacuum pump according to claim 1 is characterized in that: The overall shape of the cooling jacket (14) is cylindrical, and the cooling jacket (14) is a product made of aluminum alloy.

7. The environmentally friendly circulating water cooling vacuum pump according to claim 1 is characterized in that: A blocking net (118) is installed at the opening of the heat dissipation cavity (112), and the blocking net (118) is fixedly connected to the casing (11) via bolts.

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