Cooling water anti-freezing device for roots vacuum pump

Abstract

The utility model belongs to the technical field of Roots vacuum pumps, and particularly relates to a cooling water anti-freezing device for a Roots vacuum pump, which comprises an anti-freezing shell, a stirring cavity is arranged in the anti-freezing shell, a water suction pump is fixedly mounted at the top of the anti-freezing shell, and a water suction pipe is fixedly mounted at the water suction end of the water suction pump. One end of the water pumping pipe penetrates through the anti-freezing shell and extends into the stirring cavity; the device comprises a stirring cavity, a plurality of connecting columns, the connecting columns are rotationally installed in the stirring cavity, first stirring columns are fixedly installed at the ends, away from each other, of the connecting columns, and a disc is rotationally installed in the stirring cavity and located below the connecting columns. According to the anti-freezing device, the number of the anti-freezing solution can be determined by personnel according to use requirements, cooling water and the anti-freezing solution can be more uniformly and rapidly mixed, the cooling water and the anti-freezing solution can be more fully mixed, and the cooling water cannot be frozen in a low-temperature environment.

Description

Technical Field

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

[0002] Roots vacuum pump, also known as Roots pump, is a variable volume vacuum pump. The pump is equipped with two leaf-shaped rotors that rotate synchronously in opposite directions. A certain gap is maintained between the rotors and between the rotors and the inner wall of the pump casing, and they do not contact each other.

[0003] For example, the Chinese patent with the announcement number CN219344977U discloses a Roots vacuum pump cooling water antifreeze device, which specifically relates to the field of Roots vacuum pump technology, including an antifreeze water tank shell, an antifreeze water tank inner shell is arranged inside the antifreeze water tank shell, and a heat insulation layer and a cold insulation layer are arranged between the antifreeze water tank shell and the antifreeze water tank inner shell from the outside to the inside, a water supply pump is installed at the top of the antifreeze water tank shell, a water inlet end of the water supply pump is connected to a water pump, and the end of the water pump is inserted into the inside of the antifreeze water tank inner shell, and the middle top of the antifreeze water tank shell is located on one side of the water supply pump and fixedly connected to a fixed shell, and a motor is installed inside the fixed shell, and the output end of the motor is vertically connected to a metal stirring shaft downward, and the bottom end of the metal stirring shaft extends to the bottom of the antifreeze water tank inner shell. It is convenient to improve the antifreeze and heat insulation effect of the cooling water in the antifreeze water tank inner shell when in use, realize the heat preservation effect of the cooling water, and improve the antifreeze effect of the coolant.

[0004] The above patent has the following problems:

[0005] The above device directly uses electric heating wire for heating. When the electric heating wire is powered on, the temperature is very high, which is prone to burnout, aging and other failures. It needs to be replaced frequently, which increases maintenance costs and downtime. In view of this, we propose a cooling water antifreeze device for Roots vacuum pumps. Utility Model Content

[0006] The utility model aims to provide a cooling water antifreeze device for a Roots vacuum pump to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a cooling water antifreeze device for a Roots vacuum pump, comprising:

[0008] An antifreeze shell, wherein a stirring chamber is provided in the antifreeze shell, and a water pump is fixedly installed on the top of the antifreeze shell, a water pumping pipe is fixedly installed on the water pumping end of the water pump, and one end of the water pumping pipe penetrates the antifreeze shell and extends into the stirring chamber;

[0009] A plurality of connecting columns, wherein the connecting columns are all rotatably mounted in the stirring chamber, and a stirring column 1 is fixedly mounted on one end of the connecting columns away from each other, a disc is rotatably mounted in the stirring chamber and below the connecting columns, a plurality of stirring columns 2 are fixedly mounted on the bottom of the disc, and a plurality of stirring blades are fixedly mounted on the stirring columns 1 and 2;

[0010] A driving assembly, the driving assembly is located on the antifreeze shell and is used to drive a plurality of connecting columns to rotate in the opposite direction to the disc;

[0011] A discharge pipe is fixedly installed on the top of the antifreeze shell, and the discharge pipe is connected to the stirring chamber. A storage barrel is fixedly installed on the top of the discharge pipe, and antifreeze liquid is placed in the storage barrel. A valve is fixedly installed on the discharge pipe.

[0012] In the technical solution, when the weather temperature is low and the cooling water needs to be antifreeze treated, the personnel first open the valve, and then the antifreeze in the storage barrel enters the antifreeze shell through the discharge pipe. When the antifreeze entering the stirring chamber is sufficient, the valve is closed, and the antifreeze can be quantitatively added into the stirring chamber, so that the personnel can determine the amount of antifreeze according to the use requirements;

[0013] By means of the arranged driving assembly, the disc can be driven to rotate in the forward direction, the disc can drive a number of stirring columns 2 to rotate in the forward direction, and a number of stirring columns 2 can drive a number of corresponding stirring blades to rotate in the forward direction, so that the antifreeze and cooling water in the stirring chamber can be mixed and stirred in one direction; by means of the arranged driving assembly, a number of connecting columns can be driven to rotate in the reverse direction, and a number of connecting columns can respectively drive a number of stirring columns 1 to rotate in the reverse direction, and a number of stirring columns 1 can drive a number of corresponding stirring blades to rotate in the reverse direction, so that the antifreeze and cooling water in the stirring chamber can be mixed and stirred in another direction; the mixing and stirring in two directions can more evenly and quickly mix the cooling water and the antifreeze, so that the cooling water and the antifreeze are mixed more fully, and the cooling water will not be frozen in a low temperature environment; at the same time, the water pump transports the mixed cooling water in the antifreeze shell to the Roots vacuum pump through the water pump pipe.

[0014] In the above technical solution, further, the driving component includes:

[0015] The motor is fixedly installed on the top of the antifreeze shell and is located between a plurality of connecting columns. The output shaft of the motor passes through the antifreeze shell and extends into the stirring chamber and is fixedly installed with a bevel gear 1. A bevel gear 2 is rotatably installed in the stirring chamber and directly below the bevel gear 1. A bevel gear 3 is rotatably installed in the stirring chamber and on one side of the bevel gear 1 and the bevel gear 2. The bevel gear 3 is meshed with the bevel gear 1 and the bevel gear 2. A connecting rod is rotatably installed at one end of the bevel gear 3. The two ends of the connecting rod are rotatably connected to the upper end of the bevel gear 1 and the lower end of the bevel gear 2 respectively, and one side of the connecting rod is fixedly connected to the inner cavity of the stirring chamber. The lower end of the bevel gear 1 passes through the bevel gear 2 and is coaxially connected to the disc. The lower end of the bevel gear 2 is fixedly connected to a plurality of connecting columns, and the lower end of the bevel gear 1 is rotatably connected to the bevel gear 2.

[0016] In the present technical scheme, the motor is then started, and the drive assembly provided can drive the disc to rotate in the forward direction, and the disc drives a number of stirring columns 2 to rotate forward, and a number of stirring columns 2 drive a number of corresponding stirring blades to rotate forward, so that the antifreeze and cooling water in the stirring chamber can be mixed and stirred in one direction, and the drive assembly provided can drive a number of connecting columns to rotate in the reverse direction, and a number of connecting columns respectively drive a number of stirring columns 1 to rotate in the reverse direction, and a number of stirring columns 1 drive a number of corresponding stirring blades to rotate in the reverse direction, so that the antifreeze and cooling water in the stirring chamber can be mixed and stirred in another direction, and the mixing and stirring in two directions can more evenly and quickly mix the cooling water and the antifreeze, so that the cooling water and the antifreeze are mixed more fully, and the cooling water will not be frozen in a low temperature environment, and at the same time, the water pump transports the mixed cooling water in the antifreeze shell to the Roots vacuum pump through the water pump pipe.

[0017] In the above technical solution, further, the output shaft of the motor is rotationally connected to the antifreeze shell and the stirring chamber.

[0018] In this technical solution, it is ensured that the output shaft of the motor can rotate in the antifreeze shell and the stirring chamber.

[0019] In the above technical solution, further, the peripheral side wall of the storage barrel is engraved with scale lines, and the bottom of the inner cavity of the storage barrel is inclined.

[0020] In this technical solution, personnel can judge how much antifreeze is added to the stirring chamber by observing the scale line, ensuring that the antifreeze can be completely discharged into the storage barrel.

[0021] In the above technical solution, further, the plurality of connecting posts are distributed in a ring shape with equal intervals.

[0022] In the technical solution, it is ensured that a plurality of connecting columns can drive a corresponding plurality of stirring blades to stir the antifreeze liquid and the coolant in the stirring chamber.

[0023] The beneficial effects of the utility model are:

[0024] 1. The cooling water antifreeze device for Roots vacuum pump, when the weather temperature is low and the cooling water needs to be antifreeze treated, the personnel first open the valve, and then the antifreeze in the storage barrel enters the antifreeze shell through the discharge pipe. At the same time, the personnel can judge how much antifreeze is added to the stirring chamber by observing the scale line. When the antifreeze entering the stirring chamber is sufficient, the valve is closed, and the antifreeze can be quantitatively added to the stirring chamber, so that the personnel can determine the amount of antifreeze according to the use requirements.

[0025] 2. The cooling water antifreeze device for the Roots vacuum pump can drive the disc to rotate in the forward direction through the set driving component, and the disc drives a number of stirring columns to rotate in the forward direction, and the number of stirring columns drive the corresponding number of stirring blades to rotate in the forward direction, so that the antifreeze liquid and the cooling water in the stirring chamber can be mixed and stirred in one direction. Through the set driving component, the number of connecting columns can be driven to rotate in the reverse direction, and the number of connecting columns respectively drive a number of stirring columns to rotate in the reverse direction, and the number of stirring columns drive the corresponding number of stirring blades to rotate in the reverse direction, so that the antifreeze liquid and the cooling water in the stirring chamber can be mixed and stirred in another direction. The mixing and stirring in two directions can more evenly and quickly mix the cooling water and the antifreeze liquid, so that the cooling water and the antifreeze liquid are mixed more fully, and the cooling water will not be frozen in a low temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the antifreeze shell of the utility model;

[0028] Figure 3 It is a schematic diagram of the motor area structure of the utility model;

[0029] Figure 4 The utility model Figure 3 The enlarged structural diagram at A in the middle;

[0030] Figure 5 It is a schematic diagram of the cross-sectional structure of the storage barrel of the utility model.

[0031] The symbols in the figure are:

[0032] 1. Antifreeze shell; 2. Stirring chamber; 3. Water pump; 4. Water pipe; 5. Connecting column; 6. Stirring column 1; 7. Disc; 8. Storage barrel; 9. Discharge pipe; 10. Motor; 11. Bevel gear 1; 12. Bevel gear 2; 13. Bevel gear 3; 14. Connecting rod; 15. Scale line; 16. Valve; 17. Stirring column 2. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0034] For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technologies, methods and devices known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and devices should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Example 1

[0035] See also Figure 1 - Figure 5 As shown, this embodiment provides a cooling water antifreeze device for a Roots vacuum pump, comprising:

[0036] An antifreeze shell 1 is provided with a stirring chamber 2, and a water pump 3 is fixedly installed on the top of the antifreeze shell 1, a water pumping pipe 4 is fixedly installed on the water pumping end of the water pump 3, and one end of the water pumping pipe 4 passes through the antifreeze shell 1 and extends into the stirring chamber 2;

[0037] A plurality of connecting columns 5, the plurality of connecting columns 5 are rotatably mounted in the stirring chamber 2, and a stirring column 1 6 is fixedly mounted on one end of the plurality of connecting columns 5 away from each other, a disc 7 is rotatably mounted in the stirring chamber 2 and below the connecting columns 5, a plurality of stirring columns 2 17 are fixedly mounted on the bottom of the disc 7, and a plurality of stirring blades are fixedly mounted on the stirring columns 1 6 and the stirring columns 2 17;

[0038] A driving assembly, which is located on the antifreeze shell 1 and is used to drive a plurality of connecting columns 5 to rotate in the opposite direction to the disc 7;

[0039] A discharge pipe 9 is fixedly mounted on the top of the antifreeze shell 1 and is communicated with the stirring chamber 2. A storage barrel 8 is fixedly mounted on the top of the discharge pipe 9. Antifreeze liquid is placed in the storage barrel 8. A valve 16 is fixedly mounted on the discharge pipe 9.

[0040] When the weather temperature is low and the cooling water needs to be antifreezed, the personnel first open the valve 16, and then the antifreeze in the storage barrel 8 enters the antifreeze shell 1 through the discharge pipe 9. When the antifreeze entering the stirring chamber 2 is sufficient, the valve 16 is closed, and the antifreeze can be quantitatively added into the stirring chamber 2, so that the personnel can determine the amount of antifreeze according to the use requirements;

[0041] By means of the drive assembly, the disc 7 can be driven to rotate in the forward direction, and the disc 7 can drive a number of stirring columns 17 to rotate in the forward direction, and a number of stirring columns 17 can drive a number of corresponding stirring blades to rotate in the forward direction, so that the antifreeze and cooling water in the stirring chamber 2 can be mixed and stirred in one direction. By means of the drive assembly, a number of connecting columns 5 can be driven to rotate in the reverse direction, and a number of connecting columns 5 can respectively drive a number of stirring columns 6 to rotate in the reverse direction, and a number of stirring columns 6 can drive a number of corresponding stirring blades to rotate in the reverse direction, so that the antifreeze and cooling water in the stirring chamber 2 can be mixed and stirred in another direction. The mixing and stirring in two directions can more evenly and quickly mix the cooling water and the antifreeze, so that the cooling water and the antifreeze are mixed more fully, and the cooling water will not be frozen in a low temperature environment. At the same time, the water pump 3 transports the mixed cooling water in the antifreeze shell 1 to the Roots vacuum pump through the water pump 4.

[0042] In this embodiment, the driving component includes:

[0043] Motor 10, motor 10 is fixedly installed on the top of the antifreeze shell 1 and is located between a plurality of connecting columns 5, the output shaft of motor 10 passes through the antifreeze shell 1 and extends into the stirring chamber 2 and is fixedly installed with bevel gear 11, bevel gear 2 12 is rotatably installed in the stirring chamber 2 and is located directly below bevel gear 11, bevel gear 3 13 is rotatably installed in the stirring chamber 2 and is located on one side of bevel gear 11 and bevel gear 2 12, bevel gear 3 13 is meshed with bevel gear 11 and bevel gear 2 12, a connecting rod 14 is rotatably installed at one end of bevel gear 3 13, two ends of the connecting rod 14 are rotatably connected to the upper end of bevel gear 11 and the lower end of bevel gear 2 12 respectively, and one side of the connecting rod 14 is fixedly connected to the inner cavity of the stirring chamber 2, the lower end of bevel gear 11 passes through bevel gear 2 12 and is coaxially connected to the disc 7, the lower end of bevel gear 2 12 is fixedly connected to a plurality of connecting columns 5, and the lower end of bevel gear 1 11 is rotatably connected to bevel gear 2 12;

[0044] Among them, the motor 10 is then started, and the disc 7 can be driven to rotate forward through the set driving component, and the disc 7 can drive a number of stirring columns 17 to rotate forward, and a number of stirring columns 17 can drive a number of corresponding stirring blades to rotate forward, so that the antifreeze and cooling water in the stirring chamber 2 can be mixed and stirred in one direction, and the set driving component can be driven to drive a number of connecting columns 5 to rotate reversely, and a number of connecting columns 5 can respectively drive a number of stirring columns 6 to rotate reversely, and a number of stirring columns 6 can drive a number of corresponding stirring blades to rotate reversely, so that the antifreeze and cooling water in the stirring chamber 2 can be mixed and stirred in another direction. The mixing and stirring in two directions can more evenly and quickly mix the cooling water and the antifreeze, so that the cooling water and the antifreeze are mixed more fully, so that the cooling water will not be frozen in a low temperature environment, and at the same time, the water pump 3 transports the mixed cooling water in the antifreeze shell 1 to the Roots vacuum pump through the water pump 4. Example 2

[0045] This embodiment provides a cooling water antifreeze device for a Roots vacuum pump, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0046] In this embodiment, the output shaft of the motor 10 is rotatably connected to the antifreeze shell 1 and the stirring chamber 2 .

[0047] Here, it is ensured that the output shaft of the motor 10 can rotate in the antifreeze shell 1 and the stirring chamber 2. Example 3

[0048] This embodiment provides a cooling water antifreeze device for a Roots vacuum pump, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0049] In this embodiment, scale lines 15 are engraved on the peripheral side wall of the storage barrel 8, and the bottom of the inner cavity of the storage barrel 8 is inclined.

[0050] The personnel can judge how much antifreeze liquid is added into the stirring chamber 2 by observing the scale line 15 to ensure that the antifreeze liquid can be completely discharged into the storage barrel 8 . Example 4

[0051] This embodiment provides a cooling water antifreeze device for a Roots vacuum pump, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] In this embodiment, a plurality of connecting columns 5 are distributed in a ring shape with equal intervals.

[0053] Among them, it is ensured that the plurality of connecting columns 5 can drive the corresponding plurality of stirring blades to stir the antifreeze liquid and the coolant in the stirring chamber 2 .

[0054] It is worth noting that the water outlet of the water pump 3 is connected to the Roots vacuum pump.

[0055] Working principle: When the weather temperature is low and the cooling water needs to be antifreeze treated, the personnel first open the valve 16, and then the antifreeze in the storage barrel 8 enters the antifreeze shell 1 through the discharge pipe 9. At the same time, the personnel can judge how much antifreeze is added to the stirring chamber 2 by observing the scale line 15. When the antifreeze entering the stirring chamber 2 is sufficient, the valve 16 is closed, and the antifreeze can be quantitatively added to the stirring chamber 2, so that the personnel can determine the amount of antifreeze according to the use requirements;

[0056] Then start the motor 10, the motor 10 is powered on and drives the bevel gear 1 11 to rotate forward, the bevel gear 1 11 drives the disc 7 to rotate forward, the disc 7 drives the stirring columns 2 17 to rotate forward, the stirring columns 2 17 drive the corresponding stirring blades to rotate forward, and the antifreeze and cooling water in the stirring chamber 2 can be mixed and stirred in one direction, and at the same time, the bevel gear 1 11 drives the bevel gear 3 13 meshing with it to rotate, and the bevel gear 3 13 drives the bevel gear 2 12 meshing with it to rotate in the opposite direction, and then the bevel gear 2 12 drives the connecting The column 5 rotates in the opposite direction, and the connecting columns 5 drive the stirring columns 6 to rotate in the opposite direction respectively, and the stirring columns 6 drive the corresponding stirring blades to rotate in the opposite direction, so that the antifreeze and cooling water in the stirring chamber 2 can be mixed and stirred in another direction. The mixing and stirring in two directions can more evenly and quickly mix the cooling water and antifreeze, so that the cooling water and antifreeze are mixed more fully, and the cooling water will not be frozen in a low temperature environment. At the same time, the water pump 3 transports the mixed cooling water in the antifreeze shell 1 to the Roots vacuum pump through the water pump pipe 4.

[0057] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A cooling water antifreeze device for a Roots vacuum pump, characterized in that: include: An antifreeze shell (1), wherein a stirring chamber (2) is provided in the antifreeze shell (1), and a water pump (3) is fixedly installed on the top of the antifreeze shell (1), and a water pump (4) is fixedly installed on the water pumping end of the water pump (3), and one end of the water pump (4) passes through the antifreeze shell (1) and extends into the stirring chamber (2); A plurality of connecting columns (5), wherein the plurality of connecting columns (5) are rotatably mounted in the stirring chamber (2), and a stirring column 1 (6) is fixedly mounted on one end of the plurality of connecting columns (5) away from each other, a disc (7) is rotatably mounted in the stirring chamber (2) and below the connecting columns (5), a plurality of stirring columns 2 (17) are fixedly mounted on the bottom of the disc (7), and a plurality of stirring blades are fixedly mounted on the stirring columns 1 (6) and 2 (17); A driving assembly, the driving assembly being located on the antifreeze shell (1) and being used to drive a plurality of connecting columns (5) to rotate in the opposite direction to the disc (7); A discharge pipe (9), the discharge pipe (9) is fixedly mounted on the top of the antifreeze shell (1), and the discharge pipe (9) is connected to the stirring chamber (2), a storage barrel (8) is fixedly mounted on the top of the discharge pipe (9), and antifreeze liquid is placed in the storage barrel (8), and a valve (16) is fixedly mounted on the discharge pipe (9).

2. A cooling water antifreeze device for a Roots vacuum pump according to claim 1, characterized in that: The drive assembly comprises: The motor (10) is fixedly mounted on the top of the antifreeze shell (1) and is located between a plurality of connecting columns (5). The output shaft of the motor (10) passes through the antifreeze shell (1) and extends into the stirring chamber (2) and is fixedly mounted with a bevel gear 1 (11). A bevel gear 2 (12) is rotatably mounted in the stirring chamber (2) and is located directly below the bevel gear 1 (11). A bevel gear 3 (13) is rotatably mounted in the stirring chamber (2) and is located on one side of the bevel gear 1 (11) and the bevel gear 2 (12). The bevel gear 3 (13) is rotatably mounted with the bevel gear 1 (11) and the bevel gear 2 (12). The gear 2 (12) is meshed with the bevel gear 3 (13), and a connecting rod (14) is rotatably mounted on one end of the bevel gear 3 (13). The two ends of the connecting rod (14) are rotatably connected to the upper end of the bevel gear 1 (11) and the lower end of the bevel gear 2 (12), respectively, and one side of the connecting rod (14) is fixedly connected to the inner cavity of the stirring chamber (2). The lower end of the bevel gear 1 (11) passes through the bevel gear 2 (12) and is coaxially connected to the disc (7). The lower end of the bevel gear 2 (12) is fixedly connected to a plurality of connecting columns (5), and the lower end of the bevel gear 1 (11) is rotatably connected to the bevel gear 2 (12).

3. A cooling water antifreeze device for a Roots vacuum pump according to claim 2, characterized in that: The output shaft of the motor (10) is rotationally connected to the antifreeze shell (1) and the stirring chamber (2).

4. The cooling water antifreeze device for a Roots vacuum pump according to claim 1, characterized in that: The peripheral side wall of the storage barrel (8) is engraved with scale lines (15).

5. The cooling water antifreeze device for a Roots vacuum pump according to claim 1, characterized in that: The bottom of the inner cavity of the storage barrel (8) is arranged to be inclined.

6. The cooling water antifreeze device for a Roots vacuum pump according to claim 1, characterized in that: The plurality of connecting columns (5) are distributed in a ring-like shape with equal spacing.

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