CN218934738U

CN218934738U - Safety exhaust mechanism for vacuum pump

Info

Publication number: CN218934738U
Application number: CN202223252505.6U
Authority: CN
Inventors: 董瑶瑶; 郭育新
Original assignee: Shanghai Wonihe Automation Technology Co ltd
Current assignee: Shanghai Wonihe Automation Technology Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-04-28
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses a safety exhaust mechanism for a vacuum pump, which belongs to the field of vacuum pump exhaust, and comprises a motor and a support frame, wherein a pump body is arranged at the output shaft end of the motor, an air inlet pipe and an air outlet pipe are respectively arranged at two sides of the front side surface of the pump body, the air inlet pipe and the air outlet pipe are communicated with the inside of the pump body, the support frame is arranged at one side deviating from the air inlet pipe, a water-gas separation tank body is arranged above the support frame, the inside of the water-gas separation tank body is hollow, a water injection pipe is communicated between the water-gas separation tank body and the pump body, a manual valve is arranged at one end, close to the pump body, of the water injection pipe, in the exhaust position of the vacuum pump, a gas-water separation tank is arranged for collecting moisture in exhaust gas so as to realize recycling, and a manual control valve and an electric control valve are respectively arranged in the water injection pipe, and the water level in the pump is judged according to the water level in the tank, so that the electric control valve can be driven to open when the water level in the tank rises.

Description

Safety exhaust mechanism for vacuum pump

Technical Field

The utility model relates to the field of vacuum pump exhaust, in particular to a safety exhaust mechanism for a vacuum pump.

Background

The most commonly used vacuum pump at the present stage is a water ring type vacuum pump, the water ring type vacuum pump is used for pumping gas in a container by utilizing pressure difference formed when blades rotate so as to achieve the aim of vacuumizing, the discharged gas contains a large amount of water, if the discharged gas is not separated, the water is deposited at a low-lying position of a pipeline, the resistance of the pipeline is increased, in addition, the water pump generally has higher requirements on water, and is generally recycled after purification and cooling, so the water consumption can be reduced by gas-water separation, the existing vacuum pump is provided with a corresponding gas-water separation tank at an exhaust position, the water is reserved in the tank, and when the water in the vacuum pump is insufficient, the water collected in the tank is returned to the pump, but the water content in the vacuum pump is too much or too little when the vacuum pump is used, the vacuumizing efficiency is affected, and a return pipeline is arranged, so that the water consumption in the water pump cannot be accurately controlled, and the working efficiency of the vacuum pump cannot be ensured.

Disclosure of Invention

1. Technical problem to be solved

The utility model aims to solve the problems in the prior art and provides a safety exhaust mechanism for a vacuum pump, which can separate air from water and judge the water level in the pump according to the water level in a separation tank.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme. The utility model provides a vacuum pump is with safe exhaust mechanism, includes motor and support frame, the pump body is installed to the motor output axle head, pump body front side surface both sides are provided with intake pipe and blast pipe respectively, intake pipe and blast pipe all link up with the pump body is inside, one side that deviates from the intake pipe is arranged in to the support frame, the water-gas separation jar body is installed to the support frame top, the inside cavity of water-gas separation jar body, the intercommunication has the water injection pipe between water-gas separation jar body and the pump body, the one end that the water injection pipe is close to the pump body is provided with manual valve, electric control valve is installed to the one end that the water injection pipe is close to the support frame, the water-gas separation jar body deviates from a side surface of motor and is provided with the scale.

Further, an air outlet pipe is arranged above the water-gas separation tank body, a turning plate is arranged above the inside of the water-gas separation tank body, the turning plate is conical, the turning plate is communicated with the air outlet pipe, a vent pipe is communicated between the water-gas separation tank body and the air outlet pipe, and the vent pipe corresponds to the turning plate in position.

Further, the front side surface of the water-gas separation tank body is provided with a boss, the boss is arranged right above the electric control valve, and the inner wall of one side of the water-gas separation tank body, which is close to the boss, is provided with a sliding groove.

Further, the cross section of the chute is T-shaped, a sliding block is slidably arranged on the inner side of the chute, an air bag is arranged on one side, away from the boss, of the sliding block, and the air bag is suspended in the water-air separation tank body.

Further, a control switch is arranged on the outer side of the boss, the control switch is connected with the electric control valve through a wire, a mounting hole is formed in the inner side of the sliding groove, and the mounting hole corresponds to the boss in position.

Further, the extrusion head is installed in the inner side of the mounting hole in a sliding mode, the end portion of the extrusion head is arranged on the inner side of the sliding groove, a sliding rod is arranged at one end of the extrusion head, the sliding rod penetrates through the mounting hole, and the end portion of the sliding rod corresponds to the contact position of the control switch.

Further, the surface of the sliding rod is sleeved with a spring, the spring is arranged in the mounting hole, and one end of the spring is in contact with the surface of the end part of the extrusion head.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that: the utility model provides a safety exhaust mechanism for a vacuum pump, which is characterized in that a gas-water separation tank is arranged at an exhaust position of the vacuum pump, moisture in exhaust gas is collected for recycling, a manual control valve and an electric control valve are respectively arranged in a water injection pipe, the water level in the pump is judged according to the water level in the tank, the electric control valve is driven to be opened when the water level in the tank rises, then the manual valve is opened manually to realize backflow of the moisture, the water level in the tank automatically drops when the water backflow reaches the pump, and after the water level drops to a certain height, the electric valve is automatically closed to prevent excessive water injection and strictly control the water injection quantity in the pump.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the longitudinal left cross-sectional structure of the water-gas separation tank of the present utility model;

fig. 3 is an enlarged view of the area a of fig. 2 according to the present utility model.

The reference numerals in the figures illustrate:

1. a motor; 2. a pump body; 3. an air inlet pipe; 4. an exhaust pipe; 5. a water injection pipe; 6. an electric control valve; 7. a support frame; 8. a water-gas separation tank body; 9. an air outlet pipe; 10. a return board; 11. a ruler; 12. a boss; 13. a manual valve; 14. a chute; 15. a slide block; 16. an air bag; 17. a mounting hole; 18. an extrusion head; 19. a slide bar; 20. a spring; 21. a control switch; 22. and (5) a vent pipe.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Example 1:

referring to fig. 1, a safety exhaust mechanism for a vacuum pump includes a motor 1 and a support frame 7, a pump body 2 is installed at an output shaft end of the motor 1, an air inlet pipe 3 and an air outlet pipe 4 are respectively arranged at two sides of a front side surface of the pump body 2, the air inlet pipe 3 and the air outlet pipe 4 are communicated with the inside of the pump body 2 so as to realize the flow of gas, the support frame 7 is arranged at one side deviating from the air inlet pipe 3, a water-gas separation tank 8 is installed above the support frame 7, the inside of the water-gas separation tank 8 is hollow, a water injection pipe 5 is communicated between the water-gas separation tank 8 and the pump body 2, a manual valve 13 is arranged at one end of the water injection pipe 5, close to the pump body 2 so as to inform whether water is injected manually, the pump body 2 is required to be in a stop state during water injection, an electric control valve 6 is installed at one end of the water injection pipe 5, close to the support frame 7, and the electric control valve 6 realizes automatic control so as to prevent excessive water injection.

Referring to fig. 1 and 2, a scale 11 is disposed on a surface of a side of the water-gas separation tank 8 facing away from the motor 1, so as to observe the water level inside the water-gas separation tank 8, and thus indirectly reflect the water amount inside the pump body 2, an air outlet pipe 9 is disposed above the water-gas separation tank 8, a turning plate 10 is disposed above the water-gas separation tank 8, the turning plate 10 is conical, the conical shape ensures that water can flow downwards in a concentrated manner, the turning plate 10 is convenient to collect and communicated with the air outlet pipe 9, a vent pipe 22 is communicated between the water-gas separation tank 8 and the air outlet pipe 4, and the vent pipe 22 corresponds to the position of the turning plate 10, so that the air flow entering the water-gas separation tank 8 through the vent pipe 22 can directly impinge on the turning plate 10.

Referring to fig. 2 and 3, a boss 12 is disposed on a front surface of the water-gas separation tank 8 to increase wall thickness and provide a movable space for an internal mechanism, the boss 12 is disposed directly above the electric control valve 6 to minimize the length of the electric wire, a chute 14 is formed in an inner wall of one side of the water-gas separation tank 8 adjacent to the boss 12, and the chute 14 is vertically formed.

The section of the sliding groove 14 is in a T shape so as to ensure the stability of the up-and-down movement of the sliding block 15, the sliding block 15 is slidably arranged on the inner side of the sliding groove 14, an air bag 16 is arranged on one side of the sliding block 15, which is away from the boss 12, the air bag 16 is suspended in the water-air separation tank 8, the air bag 16 can change along with the change of the water level in the tank, a control switch 21 is arranged on the outer side of the boss 12, the control switch 21 is also connected with a corresponding power supply, the control switch 21 is connected with the electric control valve 6 through a wire, whether the electric control valve 6 is opened or not is automatically controlled through the control switch 21, a mounting hole 17 is formed on the inner side of the sliding groove 14, and the mounting hole 17 corresponds to the boss 12 in position.

Referring to fig. 3, an extrusion head 18 is slidably mounted inside the mounting hole 17, an arc is set at an end of the extrusion head 18 to ensure that the extrusion head can smoothly slide into the mounting hole 17 when being extruded by the sliding block 15, the end of the extrusion head 18 is disposed inside the sliding slot 14, a sliding rod 19 is disposed at one end of the extrusion head 18, the sliding rod 19 penetrates through the mounting hole 17, the end of the sliding rod 19 corresponds to a contact position of the control switch 21, the control switch 21 is automatically pressed by contacting the sliding rod 19 with the contact of the control switch 21, and switching between power on and power off can be realized when the control switch 21 is pressed again.

The spring 20 ensures that the slide bar 19 can be driven to not extrude the control switch 21 when the extrusion head 18 is not extruded, the spring 20 is sleeved on the surface of the slide bar 19, the spring 20 is arranged in the mounting hole 17, and one end of the spring 20 is contacted with the surface of the end part of the extrusion head 18.

When in use: all pipelines are communicated, then a manual valve 13 is fixed in a closed state, the water-gas separation tank 8 and the pump body 2 cannot be communicated, then the air inlet pipe 3 is communicated with a container to be vacuumized, the motor 1 is started to drive eccentric blades in the pump body 2 to rotate in height, water which is injected into the pump body 2 in advance is driven to form a water ring, gas in the container is pumped out through the air inlet pipe 3 and is output into the water-gas separation tank 8 through the air outlet pipe 4 and the air pipe 22, the gas which is input into the water-gas separation tank 8 must contain certain moisture, at the moment, the water-gas mixture impacts the surface of the foldback plate 10, the moisture is attached to the foldback plate 10 and collected downwards through the taper of the foldback plate 10, and because only one air outlet pipe 9 at the top part in the water-gas separation tank 8 can exhaust, at this time, the gas can be discharged outside through the gas outlet pipe 9 after passing through the inside of the foldback plate 10, after long-time use, the water level in the water-gas separation tank 8 can be gradually increased to drive the air bag 16 and the sliding block 15 to move upwards, meanwhile, the actual situation can be observed through the scale 11, because the end part of the extrusion head 18 is arranged in the chute 14 at this time due to the existence of the spring 20, the sliding rod 19 can not contact with the control switch 21 at this time, the electric control valve 6 is in a closed state, the extrusion head 18 can be extruded after the sliding block 15 moves upwards to a certain position, then the extrusion head 18 and the sliding rod 19 move towards the direction of the control switch 21, so that the electric control valve 6 can be opened through the control switch 21, but the closing of the manual valve 13 can not be filled with water, the water in the water-gas separation tank 8 can be observed, when the threshold value is reached, the water in the pump body 2 can be at least, at this time, the manual valve 13 can be stopped, and opened, at this time, the water collected in the water-gas separation tank 8 automatically flows into the pump body 2, and after the water in the water-gas separation tank 8 flows out, the sliding block 15 descends to squeeze the squeezing head 18 again, and the water injection pipe 5 is closed by the control switch 21, so that excessive water injection is prevented.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. The utility model provides a vacuum pump is with safe exhaust mechanism, includes motor (1) and support frame (7), pump body (2) are installed to motor (1) output axle head, pump body (2) front side surface both sides are provided with intake pipe (3) and blast pipe (4) respectively, intake pipe (3) and blast pipe (4) all link up its characterized in that with pump body (2) inside: the utility model discloses a water vapor separation tank, including support frame (7), motor (1), support frame (7), electric control valve (6) are installed to one side that deviates from intake pipe (3) in support frame (7), water vapor separation tank (8) inside cavity is installed to support frame (7) top, the intercommunication has water injection pipe (5) between water vapor separation tank (8) and pump body (2), one end that water injection pipe (5) is close to pump body (2) is provided with manual valve (13), electric control valve (6) are installed to one end that water injection pipe (5) are close to support frame (7), one side surface that water vapor separation tank (8) deviates from motor (1) is provided with scale (11).

2. The safety exhaust mechanism for a vacuum pump according to claim 1, wherein: the water-gas separation tank is characterized in that an air outlet pipe (9) is arranged above the water-gas separation tank body (8), a turning plate (10) is arranged above the inside of the water-gas separation tank body (8), the turning plate (10) is conical, the turning plate (10) is communicated with the air outlet pipe (9), a vent pipe (22) is communicated between the water-gas separation tank body (8) and the air outlet pipe (4), and the vent pipe (22) corresponds to the turning plate (10).

3. The safety exhaust mechanism for a vacuum pump according to claim 2, wherein: the water-gas separation tank is characterized in that a boss (12) is arranged on the front side surface of the water-gas separation tank body (8), the boss (12) is arranged right above the electric control valve (6), and a sliding groove (14) is formed in the inner wall of one side, close to the boss (12), of the water-gas separation tank body (8).

4. A safety exhaust mechanism for a vacuum pump according to claim 3, wherein: the cross section of the chute (14) is T-shaped, a sliding block (15) is slidably arranged on the inner side of the chute (14), an air bag (16) is arranged on one side, deviating from the boss (12), of the sliding block (15), and the air bag (16) is suspended in the water-air separation tank body (8).

5. The safety exhaust mechanism for a vacuum pump according to claim 4, wherein: the control switch (21) is arranged on the outer side of the boss (12), the control switch (21) is connected with the electric control valve (6) through a wire, the mounting hole (17) is formed in the inner side of the sliding groove (14), and the mounting hole (17) corresponds to the boss (12) in position.

6. The safety exhaust mechanism for a vacuum pump according to claim 5, wherein: the inner side of the mounting hole (17) is slidingly provided with an extrusion head (18), the end part of the extrusion head (18) is arranged on the inner side of the sliding groove (14), one end of the extrusion head (18) is provided with a sliding rod (19), the sliding rod (19) penetrates through the mounting hole (17), and the end part of the sliding rod (19) corresponds to the contact position of the control switch (21).

7. The safety exhaust mechanism for a vacuum pump according to claim 6, wherein: the surface of the sliding rod (19) is sleeved with a spring (20), the spring (20) is arranged in the mounting hole (17), and one end of the spring (20) is contacted with the surface of the end part of the extrusion head (18).