Cooling water conveying device for vacuum pump mechanical seal

Abstract

The utility model discloses a cooling water conveying device for a vacuum pump mechanical seal, and relates to the technical field of coal chemical industry. The device comprises a refrigeration water tank, a circulating water pump, a temperature control assembly and a leakage-proof assembly, a heat dissipation shell is fixedly connected to the top of a temperature control shell in the temperature control assembly, heat dissipation fans penetrate through the outer walls of the two sides of the heat dissipation shell, multiple sets of heat exchange fins penetrate through the upper portion of the inner side of the temperature control shell in the transverse direction at equal intervals, and the upper ends of the heat exchange fins are located on the inner side of the heat dissipation shell. Cooling water flowing through the temperature control shell is cooled through the heat exchange fins in the temperature control assembly, so that the problem that the cooling effect of the vacuum pump is affected due to the fact that the temperature of the cooling water rises in the conveying process in the prior art is solved, and leaked water at the joint of the vacuum pump and a pipeline is absorbed through the water absorption sponge in the leakage-proof assembly; and the alarm is started through the pressure sensor to remind workers, so that the problem that the leakage-proof effect is not conveniently achieved in the cooling water conveying process in the prior art is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal chemical industry, in particular to a cooling water conveying device for a vacuum pump seal. Background Art

[0002] Coal chemical industry refers to the process of using coal as raw material and converting it into gas, liquid and solid fuels and chemicals through chemical processing. It mainly includes coal gasification, liquefaction, distillation, tar processing and calcium carbide acetylene chemical industry. In the process of coal gasification, vacuum pumps are usually used to transport the gas produced. In the use of vacuum pumps, due to the high ambient temperature and the large amount of heat generated during the operation of the vacuum pump, the temperature of the pump body and the motor will rise. In order to prevent the temperature from exceeding the preset temperature of the protection system and causing a tripping event, the vacuum pump will be used together with the cooling water delivery device during use. The cooling water delivery device is used to ensure the normal sealing water temperature of the vacuum pump, and is also used to cool the working water of the vacuum pump.

[0003] The existing document with publication number CN214095113U discloses a cooling water delivery device for equipment, including equipment, a base is arranged at the bottom of the equipment, a plurality of temperature sensors are arranged on the equipment, a thermostat is arranged on the equipment, the cooling device of the equipment is connected with a water tank through a pipeline, an electric actuator valve is arranged on the pipeline, the electric actuator valve is arranged on a side close to the equipment, the temperature sensor is electrically connected to the thermostat, the thermostat is electrically connected to the electric actuator valve, a manual valve is arranged on the pipeline, the manual valve is arranged on a side close to the water tank, a water tank rack is arranged at the bottom of the water tank, and the height of the water tank is higher than the height of the equipment;

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The cooling water delivery device mentioned above, the cooling device of the equipment is connected to a water tank through a pipeline, and a water tank rack is provided at the bottom of the water tank, and the water tank is used to provide cooling water to the equipment. However, during use, due to the long length of the pipeline, the temperature of the cooling water will increase or decrease due to the heat exchange of the pipeline during the delivery of the cooling water, which affects the cooling effect of the equipment;

[0006] 2. The cooling water delivery device mentioned above has a cooling device connected to a water tank through a pipeline. An electric actuator valve and a manual valve are provided on the pipeline. Cooling water is provided to the equipment through the water tank. However, during use, it is not convenient to prevent water leakage between the pipeline and the cooling device of the equipment, and it is not convenient to remind the staff in case of leakage.

[0007] To this end, we provide a cooling water delivery device for a vacuum pump seal to solve the above-mentioned problems. Utility Model Content

[0008] The utility model aims to provide a cooling water conveying device for a vacuum pump seal, which cools down the cooling water flowing through the temperature control shell through the heat exchange fins in the temperature control component, thereby solving the problem that it is inconvenient to avoid the increase of cooling water temperature during transmission and affecting the cooling effect of the vacuum pump. The water leakage at the connection between the vacuum pump and the pipeline is absorbed by the water-absorbing sponge in the leak-proof component, and the alarm is activated by the pressure sensor to remind the staff, thereby solving the problem that it is inconvenient to play a leak-proof role in the cooling water conveying process.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model is a cooling water delivery device for a vacuum pump seal, comprising a refrigeration water tank, a circulating water pump, a temperature control component and a leak-proof component;

[0011] The top of the temperature control shell in the temperature control assembly is fixedly connected to a heat dissipation shell, and heat dissipation fans are penetrated on both sides of the outer wall of the heat dissipation shell. A plurality of groups of heat exchange fins are penetrated horizontally at equal intervals on the upper inner side of the temperature control shell. The upper ends of the heat exchange fins are located on the inner side of the heat dissipation shell, and baffles are arranged between adjacent heat exchange fins. The lower end of the baffle is fixedly connected to the inner bottom of the temperature control shell.

[0012] The upper part of the lower mounting shell in the leak-proof component is fixedly connected to the upper part of the lower mounting shell, the front end surface of the lower mounting shell is fixedly connected to an alarm, the outer walls on both sides of the lower mounting shell are fixedly connected to pressure sensors through fixed plates, the inner sides of the lower mounting shell are movably connected to movable plates, the upper surface of the movable plates is abutted against and connected to a mounting frame, and the interior of the mounting frame is fixedly connected to a water-absorbing sponge.

[0013] The utility model is further configured as follows: a water tank outlet pipe and a water tank return pipe are respectively penetrated by the front and rear ends below the outer wall on one side of the refrigeration water tank; an end of the water tank outlet pipe away from the refrigeration water tank is fixedly connected to the water inlet end of the circulating water pump; the water outlet end of the circulating water pump is fixedly connected to a first connecting pipe; an end of the first connecting pipe away from the circulating water pump is fixedly connected to a vacuum pump inlet pipe through a temperature control shell; an end of the water tank return pipe away from the refrigeration water tank is fixedly connected to a second connecting pipe; and an end of the second connecting pipe away from the refrigeration water tank is fixedly connected to the vacuum pump outlet pipe.

[0014] The utility model is further configured as follows: a refrigeration fan is passed through the top of the refrigeration water tank, a rotating shaft is connected to the interior of the refrigeration water tank along the longitudinal direction, the front end of the rotating shaft rotates through the front end surface of the refrigeration water tank and extends to the front end of the refrigeration water tank, a stirring blade is sleeved on one end of the rotating shaft located on the inner side of the refrigeration water tank, a driving motor is fixedly connected to the upper front end surface of the refrigeration water tank through a motor frame, the output shaft of the driving motor and the end of the rotating shaft located on the outer side of the refrigeration water tank are both sleeved with gears, and the gears are meshed and connected with each other.

[0015] The utility model is further configured as follows: third connecting pipes are passed through both outer walls of the temperature control shell, and one end of the third connecting pipe away from the temperature control shell is fixedly connected to the first connecting pipe and the water inlet pipe of the vacuum pump.

[0016] The utility model is further configured as follows: a plurality of ventilation holes are evenly arranged at one end of the heat exchange fin located inside the heat dissipation shell.

[0017] The utility model is further configured as follows: L-shaped plates are welded on both sides of the front and rear end surfaces of the lower mounting shell and the upper mounting shell, and the upper and lower adjacent L-shaped plates are fixedly connected by stud bolts.

[0018] The utility model is further configured as follows: positioning holes are opened around the top of the lower installation shell, positioning columns are gap-fitted inside the positioning holes, and the top ends of the positioning columns are respectively welded around the bottom of the upper installation shell.

[0019] The utility model is further configured as follows: one side of the movable plate movably penetrates the outer walls of both sides of the lower mounting shell and extends to the top of the pressure sensor, the movable plate is located at the bottom inner side of the lower mounting shell and the front and rear ends are fixedly connected to the reset spring, and the bottom end of the reset spring is fixedly connected to the inner bottom of the lower mounting shell.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model sets a temperature control component, and the cooling water of the vacuum pump enters the interior of the temperature control shell through the first connecting pipe, increases the residence time of the cooling water in the temperature control shell through the baffle, exchanges heat with the cooling water through the heat exchange fins, and starts the heat dissipation fan at the same time, cools the heat exchange fins through the heat dissipation fan, thereby cooling the cooling water and avoiding affecting the operation of the vacuum pump due to the excessive temperature of the cooling water.

[0022] 2. The utility model provides a leak-proof component. When water leaks between the vacuum pump and the cooling water delivery device, the water drops into the water-absorbing sponge, causing the weight of the mounting frame and the water-absorbing sponge to increase. The mounting frame then applies an external force to the movable plate, so that the part of the movable plate located outside the lower mounting shell applies an external force to the pressure sensor, so that the pressure sensor detects the existence of pressure and activates an alarm through the pressure sensor. The alarm is used to remind the staff of the water leakage, thereby preventing the operation of the vacuum pump from being affected by the water leakage at the connection.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of a cooling water delivery device for a vacuum pump seal;

[0026] Figure 2 This is a schematic diagram of the structure of the refrigeration water tank of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the stirring blade of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the temperature control component of the utility model;

[0029] Figure 5 It is a front cross-sectional view of the temperature control housing of the utility model;

[0030] Figure 6 This is a structural disassembly diagram of the heat dissipation shell of the utility model;

[0031] Figure 7 It is a structural schematic diagram of the heat exchange fin of the utility model;

[0032] Figure 8 This is a structural disassembly diagram of the leak-proof component of the utility model;

[0033] Fig. 9 It is a schematic diagram of the installation between the lower installation shell and the upper installation shell of the utility model;

[0034] Fig.10 This is a schematic diagram of the structure of the pressure sensor of the utility model;

[0035] Fig.11 This is a structural disassembly diagram of the installation frame of the utility model.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1-refrigeration water tank, 101-water tank outlet pipe, 102-water tank return pipe, 103-refrigeration fan, 104-mixing blade, 104a-rotating shaft, 104b-motor frame, 104c-drive motor, 104d-gear, 2-circulating water pump, 3-first connecting pipe, 4-second connecting pipe, 5-temperature control component, 501-temperature control shell, 501a-third connecting pipe, 502-heat dissipation shell, 503-heat dissipation fan, 504-heat exchange fin, 5 04a-ventilation hole, 505-baffle, 6-leakage prevention component, 601-lower mounting shell, 601a-L-shaped plate, 601b-stud bolt, 601c-positioning hole, 602-upper mounting shell, 602a-positioning column, 603-alarm, 604-pressure sensor, 604a-fixed plate, 605-movable plate, 605a-reset spring, 606-mounting frame, 607-water-absorbing sponge, 7-vacuum pump water inlet pipe, 8-vacuum pump water outlet pipe. DETAILED DESCRIPTION

[0038] 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 of 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. Specific embodiment 1

[0040] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, it is the first embodiment of the utility model, which provides a cooling water delivery device for a vacuum pump seal, including a refrigeration water tank 1, a circulating water pump 2 and a temperature control component 5, and the temperature control component 5 includes a temperature control shell 501, a heat dissipation shell 502, a heat dissipation fan 503, heat exchange fins 504 and a baffle 505. The heat dissipation fan 503 and the heat exchange fins 504 are used to cool the cooling water entering the vacuum pump, thereby solving the problem that the temperature of the existing cooling water is easily changed during the transmission process.

[0041] Specifically, a heat dissipation shell 502 is fixedly connected to the top of the temperature control shell 501, and heat dissipation fans 503 are penetrated on the outer walls of both sides of the heat dissipation shell 502. A plurality of groups of heat exchange fins 504 are penetrated at equal intervals in the horizontal direction on the upper inner side of the temperature control shell 501, and the upper ends of the heat exchange fins 504 are located on the inner side of the heat dissipation shell 502. Baffles 505 are arranged between adjacent heat exchange fins 504, and the lower ends of the baffles 505 are fixedly connected to the inner bottom of the temperature control shell 501. The temperature control shell 501 is arranged to install structures such as the heat dissipation shell 502, and the heat dissipation shell 502 and the heat dissipation fans 503 are arranged to dissipate heat from the heat exchange fins 504. The heat exchange fins 504 are arranged to cool the cooling water entering the vacuum pump, and the baffles 505 are arranged to increase the residence time of the cooling water in the temperature control shell 501.

[0042] Furthermore, a water tank outlet pipe 101 and a water tank return pipe 102 are respectively penetrated by the front and rear ends below the outer wall of one side of the refrigeration water tank 1. The end of the water tank outlet pipe 101 away from the refrigeration water tank 1 is fixedly connected to the water inlet end of the circulating water pump 2. The water outlet end of the circulating water pump 2 is fixedly connected to the first connecting pipe 3. The end of the first connecting pipe 3 away from the circulating water pump 2 is fixedly connected to the vacuum pump inlet pipe 7 through the temperature control shell 501. The end of the water tank return pipe 102 away from the refrigeration water tank 1 is fixedly connected to the second connecting pipe 4. The end of the second connecting pipe 4 away from the refrigeration water tank 1 is fixedly connected to the vacuum pump outlet pipe 8. The refrigeration water tank 1 The setting is used to cool the cooling water, the setting of the water tank outlet pipe 101 is used to discharge the cooling water in the refrigeration water tank 1, the setting of the water tank return pipe 102 is used to re-introduce the cooling water used in the vacuum pump into the refrigeration water tank 1, the setting of the circulating water pump 2 and the first connecting pipe 3 is used to transport the cooling water in the refrigeration water tank 1 into the vacuum pump, the setting of the second connecting pipe 4 is used to connect the water tank return pipe 102 and the vacuum pump outlet pipe 8, and the setting of the vacuum pump water inlet pipe 7 and the vacuum pump outlet pipe 8 realizes the input of cooling water into the vacuum pump and the output of used cooling water in the vacuum pump;

[0043] A refrigeration fan 103 is passed through the top of the refrigeration water tank 1, and a rotating shaft 104a is connected to the interior of the refrigeration water tank 1 along the longitudinal rotation. The front end of the rotating shaft 104a rotates through the front end surface of the refrigeration water tank 1 and extends to the front end of the refrigeration water tank 1. A stirring blade 104 is sleeved on one end of the rotating shaft 104a located on the inner side of the refrigeration water tank 1. A driving motor 104c is fixedly connected to the upper front end surface of the refrigeration water tank 1 through a motor frame 104b. The output shaft of the driving motor 104c and the end of the rotating shaft 104a located on the outer side of the refrigeration water tank 1 are sleeved with a gear 1 04d, the gears 104d are meshed and connected with each other, the refrigeration fan 103 is used to cool the cooling water in the refrigeration water tank 1, the stirring blade 104 is used to stir the cooling water and speed up the cooling speed of the cooling water, the rotating shaft 104a is used to drive the stirring blade 104 to rotate, the motor frame 104b is used to install the driving motor 104c, the driving motor 104c is used to drive the gear 104d to rotate, and the gear 104d is used to drive the rotating shaft 104a to rotate;

[0044] The outer walls of both sides of the temperature control shell 501 are penetrated by third connecting pipes 501a, and one end of the third connecting pipe 501a away from the temperature control shell 501 is fixedly connected to the first connecting pipe 3 and the vacuum pump water inlet pipe 7 respectively. The third connecting pipe 501a is used to connect the temperature control shell 501 with the first connecting pipe 3 or the vacuum water inlet pipe;

[0045] One end of the heat exchange fin 504 located inside the heat dissipation shell 502 is evenly provided with multiple groups of ventilation holes 504a. The ventilation holes 504a are provided to assist air flow in the heat dissipation shell 502 and increase the contact area between the heat exchange fin 504 and the air.

[0046] The operation process of this embodiment is as follows: first, the vacuum pump is connected to the refrigeration water tank 1, and the refrigeration fan 103 and the drive motor 104c are started, and the water in the refrigeration water tank 1 is cooled by the refrigeration fan 103, and the rotating shaft 104a is driven to rotate synchronously by the gear 104d, and the stirring blade 104 is driven to rotate by the rotating shaft 104a, and the water in the refrigeration water tank 1 is stirred by the stirring blade 104, so that the water in the refrigeration water tank 1 is cooled, and then the circulating water pump 2 is started. Under the action of the pump 2, the water in the refrigeration water tank 1 enters the temperature control shell 501 through the water tank outlet pipe 101 and the first connecting pipe 3 in turn, and finally the heat dissipation fan 503 is started, the heat exchange fins 504 are cooled by the heat dissipation fan 503, and the water in the temperature control shell 501 is cooled again by the heat exchange fins 504, and the cooled cooling water enters the vacuum pump through the third connecting pipe 501a, and the cooling water in the vacuum pump returns to the refrigeration water tank 1 through the second connecting pipe 4 and the water tank return pipe 102. Specific embodiment 2

[0048] See also Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, it is the second embodiment of the utility model, which is based on the previous embodiment, but is different from the previous embodiment in that it also includes a leak-proof component 6, and the leak-proof component 6 includes a lower mounting shell 601, an upper mounting shell 602, an alarm 603, a pressure sensor 604 and a water-absorbing sponge 607. The water leaking from the connection is absorbed by the water-absorbing sponge 607, and the alarm 603 is activated by the pressure sensor 604 to remind the staff, thereby solving the existing problem of inconvenience in reminding the connection between the conveying device and the vacuum pump.

[0049] Specifically, the upper mounting shell 602 is fixedly connected to the upper portion of the lower mounting shell 601, an alarm 603 is fixedly connected to the front end surface of the lower mounting shell 601, pressure sensors 604 are fixedly connected to the outer walls of both sides of the lower mounting shell 601 through fixed plates 604a, movable plates 605 are movably connected to the inner sides of the lower mounting shell 601, the upper surface of the movable plates 605 is abutted against and connected to a mounting frame 606, a water-absorbing sponge 607 is fixedly connected to the inner portion of the mounting frame 606, and the lower mounting shell 601 and the upper mounting shell 602 are used to mount the structure. At the connection between the second connecting pipe 4 and the vacuum pump outlet pipe 8, and at the connection between the third connecting pipe 501a and the vacuum pump inlet pipe 7, the alarm 603 is used to remind the staff of water leakage at the connection, the pressure sensor 604 is used to detect the weight of the absorbent sponge 607, the movable plate 605 is used to install the installation frame 606, and the installation frame 606 is used to install the absorbent sponge 607, and the absorbent sponge 607 is used to absorb the leaked water, thereby achieving the purpose of detecting water leakage.

[0050] Furthermore, L-shaped plates 601a are welded on both sides of the front and rear end surfaces of the lower mounting shell 601 and the upper mounting shell 602, and the upper and lower adjacent L-shaped plates 601a are fixedly connected by stud bolts 601b. The L-shaped plates 601a and the stud bolts 601b are used to fix the lower mounting shell 601 and the upper mounting shell 602;

[0051] The top of the lower mounting shell 601 is provided with positioning holes 601c around it, and the inside of the positioning holes 601c is fitted with positioning posts 602a in a clearance manner. The top ends of the positioning posts 602a are respectively welded to the bottom of the upper mounting shell 602 around it. The positioning holes 601c and the positioning posts 602a are provided to position the lower mounting shell 601 and the upper mounting shell 602.

[0052] One side of the movable plate 605 movably passes through the outer walls of both sides of the lower mounting shell 601 and extends to the top of the pressure sensor 604. The movable plate 605 is located at the bottom inner side of the lower mounting shell 601 and the front and rear ends are fixedly connected with a return spring 605a. The bottom end of the return spring 605a is fixedly connected to the inner bottom of the lower mounting shell 601. The setting of the return spring 605a is used to movably install the movable plate 605 inside the lower mounting shell 601.

[0053] The rest of the structure is the same as that of the first embodiment.

[0054] The operation process of this embodiment is as follows: when there is water leakage at the connection, the water drops fall on the absorbent sponge 607, and the water leakage is absorbed by the absorbent sponge 607, causing the weight of the absorbent sponge 607 to increase. At this time, the external force applied by the mounting frame 606 to the movable plate 605 increases, and then the external force is applied to the pressure sensor 604 through the movable plate 605. When the pressure sensor 604 detects the existence of pressure, the alarm 603 is activated through the pressure sensor 604, and the alarm 603 is used to remind the staff of the water leakage.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cooling water delivery device for a vacuum pump seal, comprising a cooling water tank (1), a circulating water pump (2), a temperature control component (5) and a leak-proof component (6), characterized in that: The top of the temperature control shell (501) in the temperature control component (5) is fixedly connected to a heat dissipation shell (502), and heat dissipation fans (503) are passed through the outer walls of both sides of the heat dissipation shell (502), and a plurality of groups of heat exchange fins (504) are passed through the upper inner side of the temperature control shell (501) at equal intervals in the horizontal direction, and the upper ends of the heat exchange fins (504) are located on the inner side of the heat dissipation shell (502), and baffles (505) are arranged between adjacent heat exchange fins (504), and the lower ends of the baffles (505) are fixedly connected to the inner bottom of the temperature control shell (501); The upper portion of the lower mounting shell (601) in the leak-proof component (6) is fixedly connected to the upper portion of the lower mounting shell (601), and an alarm (603) is fixedly connected to the front end surface of the lower mounting shell (601), and pressure sensors (604) are fixedly connected to both side outer walls of the lower mounting shell (601) via fixed plates (604a), and both sides of the interior of the lower mounting shell (601) are movably connected to movable plates (605), and the upper surface of the movable plate (605) is abuttingly connected to a mounting frame (606), and a water-absorbing sponge (607) is fixedly connected to the interior of the mounting frame (606).

2. A cooling water delivery device for a vacuum pump seal according to claim 1, characterized in that: A water tank outlet pipe (101) and a water tank return pipe (102) are respectively passed through the front and rear ends below the outer wall of one side of the refrigeration water tank (1), and the end of the water tank outlet pipe (101) away from the refrigeration water tank (1) is fixedly connected to the water inlet end of the circulating water pump (2), the water outlet end of the circulating water pump (2) is fixedly connected to the first connecting pipe (3), and the end of the first connecting pipe (3) away from the circulating water pump (2) is fixedly connected to the vacuum pump inlet pipe (7) through the temperature control shell (501), the end of the water tank return pipe (102) away from the refrigeration water tank (1) is fixedly connected to the second connecting pipe (4), and the end of the second connecting pipe (4) away from the refrigeration water tank (1) is fixedly connected to the vacuum pump outlet pipe (8).

3. A cooling water delivery device for a vacuum pump seal according to claim 2, characterized in that: A refrigeration fan (103) is passed through the top of the refrigeration water tank (1), and a rotating shaft (104a) is rotatably connected to the interior of the refrigeration water tank (1) in the longitudinal direction. The front end of the rotating shaft (104a) rotates through the front end surface of the refrigeration water tank (1) and extends to the front end of the refrigeration water tank (1), and a stirring blade (104) is sleeved on one end of the rotating shaft (104a) located on the inner side of the refrigeration water tank (1). A driving motor (104c) is fixedly connected to the upper side of the front end surface of the refrigeration water tank (1) through a motor frame (104b), and the output shaft of the driving motor (104c) and the end of the rotating shaft (104a) located on the outer side of the refrigeration water tank (1) are sleeved with gears (104d), and the gears (104d) are meshed with each other.

4. A cooling water delivery device for a vacuum pump seal according to claim 2, characterized in that: A third connecting pipe (501a) is passed through both outer walls of the temperature control shell (501), and one end of the third connecting pipe (501a) away from the temperature control shell (501) is fixedly connected to the first connecting pipe (3) and the vacuum pump water inlet pipe (7) respectively.

5. The cooling water delivery device for vacuum pump seal according to claim 1, characterized in that: One end of the heat exchange fin (504) located inside the heat dissipation shell (502) is evenly provided with a plurality of groups of ventilation holes (504a).

6. A cooling water delivery device for a vacuum pump seal according to claim 1, characterized in that: L-shaped plates (601a) are welded on both sides of the front and rear end surfaces of the lower mounting shell (601) and the upper mounting shell (602), and upper and lower adjacent L-shaped plates (601a) are fixedly connected by stud bolts (601b).

7. A cooling water delivery device for a vacuum pump seal according to claim 6, characterized in that: Positioning holes (601c) are provided around the top of the lower mounting shell (601), and positioning columns (602a) are loosely fitted inside the positioning holes (601c), and the top ends of the positioning columns (602a) are respectively welded around the bottom of the upper mounting shell (602).

8. The cooling water delivery device for vacuum pump seal according to claim 1, characterized in that: One side of the movable plate (605) is movable and passes through the outer walls of both sides of the lower mounting shell (601) and extends to the top of the pressure sensor (604), and the movable plate (605) is located at the bottom inner side of the lower mounting shell (601) and the front and rear ends are fixedly connected to the return spring (605a), and the bottom end of the return spring (605a) is fixedly connected to the inner bottom of the lower mounting shell (601).

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