Roots vacuum pump cooling device

Abstract

The utility model discloses a roots vacuum pump cooling device which comprises a main body, a pump body is installed on the left side of the main body, a water tank is installed on the right side of the main body, a motor is installed in the pump body, a channel is formed in the outer wall of the motor, an upper water cavity is installed above the motor, and a lower water cavity is installed on the right side of the motor. And a water pump is installed on the left side of the water tank, stirring blades are installed in the water pump, and a metal pipe is installed in the channel in a penetrating and inserting mode. The metal pipes are inserted into the channels in a penetrating mode, the multiple metal pipes are connected end to end to form a channel and communicated with the upper water cavity and the lower water cavity, the upper water cavity and the lower water cavity form a channel with the water pump and the cold radiator through hoses, the transverse pipeline is located above the fan, and the fan cools the transverse pipeline, reduces the water temperature and leads into the water tank. The water pump pumps cooled water into the upper water cavity, the water flowing through the metal pipe takes away heat of the motor, and the situation that equipment is damaged and safety accidents are caused due to temperature accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of Roots vacuum pumps, in particular to a cooling device for a Roots vacuum pump. Background Art

[0002] Roots pump is a vacuum pump without internal compression, usually with a very low compression ratio, so high and medium vacuum pumps require a fore pump. Roots vacuum pump refers to a variable displacement vacuum pump equipped with two lobe rotors rotating synchronously in opposite directions. There is a small gap between the rotors and between the rotors and the inner wall of the pump casing, but they do not contact each other. The vacuum pump relies on the pushing effect of a pair of lobe rotors rotating synchronously and in opposite directions in the pump chamber to move the gas and achieve exhaust. A pair of rotors rotate at high speed, and the rotors rotate to compress the gas, which will generate a lot of heat. When the inlet and outlet pressure difference increases further, the heat generation will be even greater. If the heat is not transferred out in time, the rotor will continue to heat up and transfer the heat to other parts of the Roots pump, such as the casing, bearings, gears, seals, etc. The gap between the rotor and the casing is very small, and excessive temperature will reduce the service life of the equipment and components.

[0003] However, when the current Roots vacuum pump operates at high speed, the motor on the rear side will generate a large amount of heat. The heat cannot be dissipated in time, which reduces working efficiency and increases power consumption, resulting in a shortened service life of the Roots vacuum pump. The heat is also transferred to other parts of the Roots pump, such as the casing, bearings, gears, seals, etc., causing damage to the equipment and resulting in safety accidents. Utility Model Content

[0004] The purpose of the utility model is to provide a cooling device for a Roots vacuum pump to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a Roots vacuum pump cooling device, comprising a main body, a pump body is installed on the left side of the main body, a water tank is installed on the right side of the main body, a motor is installed in the pump body, a groove is provided on the outer wall of the motor, an upper water cavity is installed above the motor, and a lower water cavity is installed to the right of the motor, a water pump is installed on the left side of the water tank, a stirring blade is installed inside the water pump, a metal pipe is inserted into the groove, water pipes are provided on both sides of the metal pipe, interfaces are fixedly installed at both ends of the metal pipe, sockets are installed at both ends of the water pipe, a limit block is installed on the inner side of the socket, and a threaded sleeve is movably installed on the outer side of the limit block, fans are symmetrically provided on the top of the water tank, a cold row is installed on the top of the fan through a bracket, connecting pipes are symmetrically provided in the cold row, a plurality of horizontal pipes are installed between the connecting pipes, a short cavity and a long cavity are opened in the connecting pipe, and a hose is installed between the water pump and the upper water cavity.

[0006] Preferably, the grooves are symmetrically arranged on both sides of the motor, and the metal pipes in the grooves on each side are connected to each other through water pipes.

[0007] Preferably, interfaces are symmetrically installed on the upper water cavity and the lower water cavity, one end of the metal tube at the top is connected to the upper water cavity through the water pipe, and one end of the metal tube at the bottom is connected to the lower water cavity through the water pipe.

[0008] Preferably, a motor is installed in the middle of the top of the water tank, and the rotating shaft of the motor passes through the water tank and is connected to the stirring blade. At the same time, a hose is provided at the other end of the water pump to pass through the water tank to the bottom. At the same time, the water tank is provided with an arc-shaped slope bottom, and a water valve is provided under the water tank.

[0009] Preferably, the outside of the interface is provided with threads, and the size of the socket is smaller than the interface, the threads on the interface and the threaded sleeve are engaged with each other, and the size of the limit block is larger than the interface.

[0010] Preferably, one short cavity and two long cavities are provided in the connecting pipe, and the short cavity and the long cavity are not connected to each other, and are arranged in an obliquely symmetrical distribution in the connecting pipes on both sides.

[0011] Preferably, the two ends of the horizontal pipe are connected to the short cavity and the long cavity respectively, and the adjacent horizontal pipes form a channel through the short cavity and the long cavity. An interface is installed at one end of the connecting pipe, and the two radiators are connected end to end by installing a water pipe at the interface.

[0012] Preferably, the lower water chamber and the left radiator are connected through a hose, and the right radiator is installed with a hose that passes through the water tank.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model is achieved by symmetrically providing grooves on the outside of the motor, and inserting metal pipes in the grooves. Several metal pipes are connected end to end through the cooperation of water pipes and threaded sleeve structures to form a channel, and are connected with the upper and lower water chambers. At the same time, the upper and lower water chambers are respectively connected with the water pump and the radiator through hoses to form a passage and a water tank. Several horizontal pipes are located above the fan, and the fan is used to quickly cool the horizontal pipes to reduce the internal water temperature and pass the water into the water tank. At the same time, the water pump pumps the cooled water in the water tank into the upper water chamber. The water flowing after passing through the several metal pipes takes away the heat of the motor itself, thereby achieving continuous cooling of the motor and avoiding the occurrence of temperature accumulation that may damage the equipment and cause safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 for Figure 1A magnified schematic diagram of point A in the middle;

[0017] Figure 3 It is a side view of the motor in the present utility model;

[0018] Figure 4 It is a structural schematic diagram of the cooling radiator in this utility model.

[0019] In the figure: 1. Main body; 2. Pump body; 21. Motor; 22. Channel; 23. Upper water cavity; 24. Lower water cavity; 3. Water tank; 31. Water pump; 32. Stirring blade; 4. Metal pipe; 41. Water pipe; 42. Interface; 43. Socket; 44. Limit block; 45. Threaded sleeve; 5. Fan; 6. Radiator; 61. Connecting pipe; 62. Horizontal pipe; 63. Short cavity; 64. Long cavity; 7. Hose. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 The utility model provides a technical solution: a Roots vacuum pump cooling device, comprising a main body 1, a pump body 2 is installed on the left side of the main body 1, a water tank 3 is installed on the right side of the main body 1, a motor 21 is installed in the pump body 2, a groove 22 is provided on the outer wall of the motor 21, an upper water cavity 23 is installed above the motor 21, a lower water cavity 24 is installed on the right side of the motor 21, a water pump 31 is installed on the left side of the water tank 3, a stirring blade 32 is installed inside the water pump 31, a metal pipe 4 is inserted in the groove 22, and water pipes 4 are provided on both sides of the metal pipe 4. 1. Interfaces 42 are fixedly installed at both ends of the metal tube 4, and sockets 43 are installed at both ends of the water pipe 41. A limit block 44 is installed on the inner side of the socket 43, and a threaded sleeve 45 is movably installed on the outer side of the limit block 44. A fan 5 is symmetrically arranged on the top of the water tank 3, and a cold row 6 is installed on the top of the fan 5 through a bracket. Connecting pipes 61 are symmetrically provided in the cold row 6, and several horizontal pipes 62 are installed between the connecting pipes 61. A short cavity 63 and a long cavity 64 are opened in the connecting pipe 61 at one time. A hose 7 is installed between the water pump 31 and the upper water cavity 23.

[0022] The grooves 22 are symmetrically arranged on both sides of the motor 21 , and the metal tubes 4 in the grooves 22 on each side are connected to each other through the water pipes 41 .

[0023] The upper water chamber 23 and the lower water chamber 24 are symmetrically provided with interfaces 42 . One end of the metal tube 4 at the top is connected to the upper water chamber 23 through a water pipe 41 , and one end of the metal tube 4 at the bottom is connected to the lower water chamber 24 through a water pipe 41 .

[0024] A motor 21 is installed in the middle of the top of the water tank 3. The rotating shaft of the motor 21 passes through the water tank 3 and is connected to the stirring blade 32. At the same time, a hose 7 is provided at the other end of the water pump 31 to pass through the water tank 3 to the bottom. At the same time, the water tank 3 is provided with an arc-shaped slope bottom, and a water valve is provided under the water tank 3.

[0025] The interface 42 is provided with threads on its exterior. Meanwhile, the socket 43 is smaller than the interface 42 . The threads on the interface 42 and the threaded sleeve 45 are engaged with each other. The size of the limit block 44 is larger than the interface 42 .

[0026] The connecting pipe 61 is provided with a short cavity 63 and two long cavities 64 . The short cavity 63 and the long cavity 64 are not connected to each other, and are arranged in an obliquely symmetrical distribution in the connecting pipes 61 on both sides.

[0027] The ends of the transverse pipe 62 are connected to the short cavity 63 and the long cavity 64 respectively. At the same time, adjacent transverse pipes 62 form a channel through the short cavity 63 and the long cavity 64. One end of the connecting pipe 61 is installed with an interface 42. The two radiators 6 are connected end to end by installing a water pipe 41 at the interface 42. The metal pipe 4 and the radiator 6 are made of metal, which effectively increases the heat dissipation efficiency.

[0028] The lower water chamber 24 and the left radiator 6 are connected through a hose 7. The right radiator 6 is installed with a hose 7 that penetrates into the water tank 3. The motor 21 above the water tank 3 drives the stirring blade 32 to rotate to prevent freezing in winter. At the same time, half of the water flowing into the water tank 3 will not be below zero temperature, which effectively prevents the water in the water tank 3 from freezing.

[0029] Working principle: Insert the sockets 43 at both ends of the water pipe 41 into the interface 42 until the limit block 44 is against the edge of the interface 42, then push the threaded sleeve 45 to move to the end of the interface 42, and then rotate the threaded sleeve 45 to make it engage with the threads on the outer wall of the interface 42 until it is tightened. Similarly, connect the metal pipes 4 in the grooves 22 on both sides of the motor 21 through the water pipes 41 to form an "S"-shaped channel. Finally, connect the uppermost metal pipe 4 to the upper water cavity 23 through the water pipe 41, and connect the lowermost metal pipe 4 to the lower water cavity 24 through the water pipe 41. Then connect the upper water cavity 23 to the water pump 31 using the hose 7, and the other end of the water pump 31 is passed into the water tank 3. Similarly, the lower water cavity 24 uses the hose 7 and the cold water tank on the left. The connecting pipe 61 in the row 6 is connected, and one end of the radiator 6 on the right is connected to the water tank 3 through the hose 7. The water pump 31 pumps the internal water into the upper water chamber 23, and then the water flows through the metal pipe 4 and the water pipe 41 into the lower water chamber 24, and then enters the radiator 6 along the hose 7. The water enters the short cavity 63 and flows into the horizontal pipe 62 and then passes through the long cavity 64. It flows in sequence and finally flows from the connecting pipe 61 on the other side along the water pipe 41 to the radiator 6 on the right. Several horizontal pipes 62 are located above the fan 5. Multiple horizontal pipes 62 increase the length of the water flow path so that it can be fully cooled. The fan 5 is used to quickly cool the horizontal pipe 62 to reduce the internal water temperature and pass it into the water tank 3. This cycle is repeated to use the flowing water to take away the heat of the motor 21.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for a Roots vacuum pump, comprising a main body (1), characterized in that: A pump body (2) is installed on the left side of the main body (1), a water tank (3) is installed on the right side of the main body (1), a motor (21) is installed in the pump body (2), a groove (22) is provided on the outer wall of the motor (21), an upper water cavity (23) is installed above the motor (21), a lower water cavity (24) is installed on the right side of the motor (21), a water pump (31) is installed on the left side of the water tank (3), a stirring blade (32) is installed inside the water pump (31), a metal pipe (4) is inserted and installed in the groove (22), water pipes (41) are provided on both sides of the metal pipe (4), and two ends of the metal pipe (4) are fixedly installed. The water pipe (41) is provided with a socket (43) at both ends, a limit block (44) is provided on the inner side of the socket (43), and a threaded sleeve (45) is movably provided on the outer side of the limit block (44). A fan (5) is symmetrically provided on the top of the water tank (3), and a cooling radiator (6) is installed on the top of the fan (5) through a bracket. Connecting pipes (61) are symmetrically provided in the cooling radiator (6), and a plurality of transverse pipes (62) are provided between the connecting pipes (61). A short cavity (63) and a long cavity (64) are provided in the connecting pipe (61). A hose (7) is provided between the water pump (31) and the upper water cavity (23).

2. A Roots vacuum pump cooling device according to claim 1, characterized in that: The grooves (22) are symmetrically arranged on both sides of the motor (21), and the metal pipes (4) in the grooves (22) on each side are connected to each other through water pipes (41).

3. A cooling device for a Roots vacuum pump according to claim 2, characterized in that: The upper water chamber (23) and the lower water chamber (24) are both symmetrically provided with interfaces (42); one end of the metal tube (4) located at the top is communicated with the upper water chamber (23) through a water pipe (41); and one end of the metal tube (4) located at the bottom is communicated with the lower water chamber (24) through a water pipe (41).

4. A cooling device for a Roots vacuum pump according to claim 3, characterized in that: A motor (21) is installed in the middle of the top of the water tank (3), and the rotating shaft of the motor (21) passes through the water tank (3) and is connected to the stirring blade (32). At the same time, a hose (7) is provided at the other end of the water pump (31) and passes through the water tank (3) to the bottom. At the same time, the water tank (3) is provided with an arc-shaped slope bottom, and a water valve is provided below the water tank (3).

5. A cooling device for a Roots vacuum pump according to claim 4, characterized in that: The interface (42) is provided with threads on its exterior, and the socket (43) is smaller than the interface (42). The threads on the interface (42) and the threaded sleeve (45) are engaged with each other, and the size of the limit block (44) is larger than the interface (42).

6. A cooling device for a Roots vacuum pump according to claim 5, characterized in that: The connecting pipe (61) is provided with a short cavity (63) and two long cavities (64), and the short cavity (63) and the long cavity (64) are not connected to each other, and are arranged in an obliquely symmetrical distribution in the connecting pipes (61) on both sides.

7. A cooling device for a Roots vacuum pump according to claim 6, characterized in that: The two ends of the transverse pipe (62) are respectively connected to the short cavity (63) and the long cavity (64), and adjacent transverse pipes (62) form a channel through the short cavity (63) and the long cavity (64). One end of the connecting pipe (61) is installed with an interface (42), and the two radiators (6) are connected end to end by installing a water pipe (41) at the interface (42).

8. The cooling device for a Roots vacuum pump according to claim 7, characterized in that: The lower water chamber (24) and the left cooling radiator (6) are connected via a hose (7), and the right cooling radiator (6) is provided with a hose (7) that penetrates into the water tank (3).

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