CN219344977U

CN219344977U - Roots vacuum pump cooling water freeze-proof device

Info

Publication number: CN219344977U
Application number: CN202320706412.1U
Authority: CN
Inventors: 乔国梁
Original assignee: Yunpeng Pharmaceutical Group Co ltd
Current assignee: Yunpeng Pharmaceutical Group Co ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-07-14
Anticipated expiration: 2033-04-03

Abstract

The utility model discloses a Roots vacuum pump cooling water antifreezing device, and in particular relates to the technical field of Roots vacuum pumps, which comprises an antifreezing water tank shell, wherein an antifreezing water tank inner shell is arranged in the antifreezing water tank shell, a heat insulation layer and a cold insulation layer are arranged between the antifreezing water tank shell and the antifreezing water tank inner shell from outside to inside, a water supply pump is arranged at the top end of the antifreezing water tank shell, a water suction pipe is connected to the liquid inlet end of the water supply pump, the end part of the water suction pipe is inserted into the antifreezing water tank inner shell, a fixed shell is fixedly connected to one side of the water supply pump at the top end of the middle part of the antifreezing water tank shell, a motor is arranged in the fixed shell, a metal stirring shaft is vertically and downwards connected to the output end of the motor, and the bottom end of the metal stirring shaft extends to the bottom of the antifreezing water tank inner shell. The utility model is convenient to improve the anti-freezing and heat-insulating effects of the cooling water in the inner shell of the anti-freezing water tank when in use, realizes the heat-insulating effect of the cooling water and improves the anti-freezing effect of the cooling liquid.

Description

Roots vacuum pump cooling water freeze-proof device

Technical Field

The utility model relates to the technical field of Roots vacuum pumps, in particular to a cooling water antifreezing device for a Roots vacuum pump.

Background

The Roots vacuum pump is a vacuum pump without internal contraction, in general, the compression ratio of an engine is low, so the high vacuum pump and the medium vacuum pump are front pumps, the vacuum pump is driven by a pair of vane rotors rotating in the same direction and opposite directions in a pump cavity to move steam and keep vacuum, the Roots vacuum pump is a mechanical equipment vacuum pump with a pair of vamp type rotors working at high speed, the pump cannot independently vacuumize, a framework sealing piece and a water ring are arranged in front, so that air is directly discharged, the Roots vacuum pump needs to be cooled by using inverted cooling water in the use process, the cooling water is usually stored in a box body, the cooling water is conveniently pumped out in the hot season, however, in winter, particularly in the low temperature, the cooling water is easy to freeze, so that a cooling water antifreezing device is needed to be designed.

The Chinese patent of the utility model with publication number of CN209744796U discloses an antifreezing water tank of a cooling water system, the technology designs an antifreezing structure for cooling water, the antifreezing water tank is fixedly arranged outside a water storage chamber through a heat insulation layer, and a connecting block is fixedly arranged between the heat insulation layer and a reinforcing layer, so that a hollow layer is formed between the heat insulation layer and the reinforcing layer, and internal liquid freezing caused by external factors is avoided, and equipment damage is caused.

The above patent designs an anti-freezing structure for cooling water, which can achieve the expected technical effect, but has some defects in practical use, in the above patent, when the temperature is low, a stirring structure is adopted to enable the liquid to move, but when the temperature is ultralow, the mode is not ideal, so that the anti-freezing structure in a low-temperature state needs to be designed.

Disclosure of Invention

The technical scheme of the utility model aims at solving the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and provides a Roots vacuum pump cooling water antifreezing device in order to overcome the defects of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a roots vacuum pump cooling water freeze-proof device, includes the antifreeze tank shell, the inside of antifreeze tank shell is provided with antifreeze tank inner shell, and is provided with insulating layer and cold insulating layer from outside to inside between antifreeze tank shell and the antifreeze tank inner shell, the working shaft is installed on the top of antifreeze tank shell, the feed liquor end of working shaft is connected with the drinking-water pipe, the tip of drinking-water pipe inserts the inside of establishing to the antifreeze tank inner shell, the middle part top of antifreeze tank shell is located one side fixedly connected with fixed shell of working shaft, the internally mounted of fixed shell has the motor, the output of motor is vertical to be connected with the metal (mixing) shaft downwards, the bottom of metal (mixing) shaft extends to the bottom of antifreeze tank inner shell, and the outer wall of metal (mixing) shaft is located the internal connection of antifreeze tank inner shell and has the stirring leaf, the outer wall of metal (mixing) shaft is located the inside that the fixed shell is located evenly is provided with a plurality of through-hole, the heater is installed to one side that the inside of fixed shell is close to the through-hole, temperature sensor is installed at the top of antifreeze tank shell, one side of temperature sensor is provided with the block terminal, the block terminal is provided with the block terminal.

As a further improvement of the technical scheme of the utility model, the heat insulation layer is a member made of foamed plastic, and the heat insulation layer is a member made of polyurethane cold insulation blocks.

As a further improvement of the technical scheme of the utility model, the bottom of the water supply pump is fixedly connected with the top end of the anti-freezing water tank shell through a screw, the top of the anti-freezing water tank inner shell is provided with a water filling port, and the top of the water filling port extends to the outside of the anti-freezing water tank shell.

As a further improvement of the technical scheme of the utility model, bearings are arranged outside the inserted positions of the tops of the anti-freezing water tank outer shell and the anti-freezing water tank inner shell, which correspond to the metal stirring shafts, the metal stirring shafts are hollow metal rods, and the through holes are communicated with the inner cavities of the metal stirring shafts.

As a further improvement of the technical scheme of the utility model, the motor is fixedly connected with the inner wall of the fixed shell through screws, the outer part of the heater is connected with the fixed support, and the fixed support is fixedly connected with the inner wall of the fixed shell through screws.

As a further improvement of the technical scheme of the utility model, a sealing ring is arranged at the top of the inner shell of the anti-freezing water tank in a way of being inserted into a corresponding water suction pipe, and the water suction pipe is of a stainless steel metal pipe structure.

As a further improvement of the technical scheme of the utility model, the output end of the temperature sensor is electrically connected with the input end of the singlechip, and the output end of the singlechip is electrically connected with the input ends of the motor and the heater.

The utility model has the beneficial effects that:

1. the heat insulation layer and the cold insulation layer are arranged between the anti-freezing water tank outer shell and the anti-freezing water tank inner shell from outside to inside, the heat insulation layer is a member made of foamed plastic, the heat insulation layer is a member made of polyurethane cold insulation blocks, and the anti-freezing heat insulation effect of cooling water in the anti-freezing water tank inner shell is improved when the anti-freezing water tank is used;

2. in the use, when temperature sensor detects that ambient temperature is lower, singlechip control motor and heater operation, the motor operation drives the inside cooling water activity of metal (mixing) shaft rotation drive antifreeze tank inner shell, then, heater heating produces heat, get into hollow structure's inside of metal (mixing) shaft through the epaxial through-hole of metal (mixing) shaft, and transfer the heat to the inside of antifreeze tank inner shell, realize the heat preservation effect to the cooling water, and this kind of heating method is comparatively mild, most heat is in the fixed shell, and discharge through the trompil of predetermineeing on the fixed shell, also make the temperature of cooling water can not continuously rise, the antifreeze effect of coolant liquid has been improved, the antifreeze demand under low temperature state has been satisfied, likewise, under the higher state of cooling water temperature, the heater stops the heating, the heat of coolant water also can be through the outside of metal (mixing) shaft transfer antifreeze tank.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is an enlarged view of the portion a of fig. 1 in accordance with the present utility model.

FIG. 4 is a schematic view of a part of a metal stirring shaft according to the present utility model.

The reference numerals are: 1. an antifreeze water tank housing; 2. an inner shell of the antifreeze water tank; 3. a thermal insulation layer; 4. a cold insulation layer; 5. a water supply pump; 6. a water pumping pipe; 7. a fixed case; 8. a motor; 9. a metal stirring shaft; 10. stirring the leaves; 11. a through hole; 12. a bearing; 13. a heater; 14. a fixed bracket; 15. a distribution box; 16. a single chip microcomputer; 17. a temperature sensor; 18. and a water filling port.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The Roots vacuum pump cooling water antifreezing device comprises an antifreezing water tank shell 1, wherein an antifreezing water tank inner shell 2 is arranged in the antifreezing water tank shell 1, a heat insulation layer 3 and a cold insulation layer 4 are arranged between the antifreezing water tank shell 1 and the antifreezing water tank inner shell 2 from outside to inside, a water supply pump 5 is arranged at the top end of the antifreezing water tank shell 1, a water suction pipe 6 is connected to the liquid inlet end of the water supply pump 5, the end part of the water suction pipe 6 is inserted into the antifreezing water tank inner shell 2, a fixed shell 7 is fixedly connected to one side of the water supply pump 5 at the top end of the middle part of the antifreezing water tank shell 1, a motor 8 is arranged in the inside of the fixed shell 7, a metal stirring shaft 9 is vertically downwards connected to the output end of the motor 8, the bottom end of the metal stirring shaft 9 extends to the bottom of the antifreezing water tank inner shell 2, the outer wall of the metal stirring shaft 9 is positioned in the antifreezing water tank inner shell 2 and is internally connected with stirring blades 10, a plurality of through holes 11 are uniformly formed in the outer wall of the fixed shell 7, a heater 13 is arranged on one side of the inner side of the fixed shell 7, which is close to the through holes 11, a temperature sensor 17 is arranged at the top of the antifreezing water tank shell 1, a temperature sensor 17 is arranged on one side of the power distribution box 15.

As shown in fig. 1 and fig. 3, the heat insulating layer 3 is a member made of foamed plastic, and the heat insulating layer 3 is a member made of a polyurethane cold insulating block, so that the freezing prevention and heat insulation effects of cooling water in the inner shell 2 of the freezing prevention water tank are improved when the freezing prevention water tank is used.

As shown in fig. 1, the bottom of the water supply pump 5 is fixedly connected with the top end of the antifreeze water tank outer shell 1 through a screw, the top of the antifreeze water tank inner shell 2 is provided with a water filling port 18, and the top of the water filling port 18 extends to the outside of the antifreeze water tank outer shell 1.

As shown in fig. 1 and fig. 3-4, a bearing 12 is arranged at the top of the anti-freezing water tank outer shell 1 and the anti-freezing water tank inner shell 2, corresponding to the plug-in position of the metal stirring shaft 9, so that the metal stirring shaft 9 can stably rotate, the metal stirring shaft 9 is a hollow metal rod, the through hole 11 is communicated with the inner cavity of the metal stirring shaft 9, and when the anti-freezing water tank inner shell is used, the heater 13 is used for supplying heat to the inner part of the metal stirring shaft 9 and is transmitted to the inner part of the anti-freezing water tank inner shell 2, so that an anti-freezing effect is realized.

As shown in fig. 1 and fig. 3, the motor 8 is fixedly connected with the inner wall of the fixed shell 7 through screws, the outer part of the heater 13 is connected with a fixed bracket 14, and the fixed bracket 14 is fixedly connected with the inner wall of the fixed shell 7 through screws, so that the motor 8 and the heater 13 are conveniently installed and fixed.

As shown in fig. 1, a sealing ring is arranged at the top of the inner casing 2 of the antifreeze water tank, corresponding to the plug-in connection of the water pumping pipe 6, the water pumping pipe 6 is of a stainless steel metal pipe structure, so that the sealing performance of the connection part of the water pumping pipe is convenient to improve, and the phenomenon that the water pumping pipe 6 rotates to influence normal use when stirring is carried out inside the inner casing 2 of the antifreeze water tank is avoided.

The temperature sensor 17 is of a PT100 type, the singlechip 16 is of an AT89C51 type, the output end of the temperature sensor 17 is electrically connected with the input end of the singlechip 16, and the output end of the singlechip 16 is electrically connected with the input ends of the motor 8 and the heater 13.

In summary, the utility model designs a Roots vacuum pump cooling water antifreezing device, the concrete structure is shown in the accompanying drawings 1-4 of the specification, in the technical scheme, a heat insulation layer 3 and a cold insulation layer 4 are arranged between an antifreezing water tank outer shell 1 and an antifreezing water tank inner shell 2 from outside to inside, the heat insulation layer 3 is a member made of foamed plastic, the heat insulation layer 3 is a member made of polyurethane cold insulation blocks, and the antifreezing heat insulation effect of cooling water in the antifreezing water tank inner shell 2 is improved conveniently when the antifreezing water tank inner shell is used; when the temperature sensor 17 detects that the external temperature is lower, the singlechip 16 controls the motor 8 and the heater 13 to operate, the motor 8 operates to drive the metal stirring shaft 9 to rotate so as to drive cooling water inside the anti-freezing water tank inner shell 2 to move, then, the heater 13 heats and generates heat, the heat enters the metal stirring shaft 9 with a hollow structure through the through hole 11 on the metal stirring shaft 9, and is transferred to the inside of the anti-freezing water tank inner shell 2, so that the heat preservation effect on the cooling water is realized, the heating mode is mild, most of the heat is in the fixed shell 7 and is discharged through the preset opening on the fixed shell 7, the temperature of the cooling water is not continuously increased, and the anti-freezing effect of the cooling liquid is improved.

In the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other without conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a roots vacuum pump cooling water freeze-proof device, includes antifreezing water tank shell (1), its characterized in that: the inside of antifreeze water tank shell (1) is provided with antifreeze water tank inner shell (2), and be provided with insulating layer (3) and cold insulating layer (4) from outside to inside between antifreeze water tank shell (1) and the antifreeze water tank inner shell (2), working shaft (5) are installed on the top of antifreeze water tank shell (1), the feed-in end of working shaft (5) is connected with drinking-water pipe (6), the tip cartridge of drinking-water pipe (6) is established to the inside of antifreeze water tank inner shell (2), the middle part top of antifreeze water tank shell (1) is located one side fixedly connected with fixed shell (7) of working shaft (5), the internally mounted of fixed shell (7) has motor (8), the output of motor (8) is vertically downwards connected with metal (9) stirring axle, the bottom of metal (9) extends to the bottom of antifreeze water tank inner shell (2), and the outer wall of metal (9) is located the inside connection of antifreeze water tank inner shell (2) has stirring leaf (10), the outer wall of metal (9) is located the inside of fixed shell (7) and evenly is provided with fixed shell (7), be close to one side of the inside sensor (11) of fixed shell (17) and install temperature sensor (13), one side of the temperature sensor (17) is provided with a distribution box (15), and the top of the distribution box (15) is provided with a singlechip (16).

2. The Roots vacuum pump cooling water antifreeze apparatus as claimed in claim 1, wherein: the heat insulation layer (3) is a member made of foamed plastic, and the heat insulation layer (3) is a member made of polyurethane cold insulation blocks.

3. The Roots vacuum pump cooling water antifreeze apparatus as claimed in claim 1, wherein: the bottom of the water supply pump (5) is fixedly connected with the top end of the anti-freezing water tank outer shell (1) through a screw, a water filling port (18) is formed in the top of the anti-freezing water tank inner shell (2), and the top of the water filling port (18) extends to the outside of the anti-freezing water tank outer shell (1).

4. The Roots vacuum pump cooling water antifreeze apparatus as claimed in claim 1, wherein: the anti-freezing water tank is characterized in that bearings (12) are arranged outside the plugging positions of the tops of the anti-freezing water tank outer shell (1) and the anti-freezing water tank inner shell (2) corresponding to the metal stirring shaft (9), the metal stirring shaft (9) is a hollow metal rod, and the through holes (11) are communicated with the inner cavity of the metal stirring shaft (9).

5. The Roots vacuum pump cooling water antifreeze apparatus as claimed in claim 1, wherein: the motor (8) is fixedly connected with the inner wall of the fixed shell (7) through screws, a fixed support (14) is connected to the outside of the heater (13), and the fixed support (14) is fixedly connected with the inner wall of the fixed shell (7) through screws.

6. The Roots vacuum pump cooling water antifreeze apparatus as claimed in claim 1, wherein: the top of the anti-freezing water tank inner shell (2) is provided with a sealing ring corresponding to the water suction pipe (6) in a plugging mode, and the water suction pipe (6) is of a stainless steel metal pipe structure.

7. The Roots vacuum pump cooling water antifreeze apparatus as claimed in claim 1, wherein: the output end of the temperature sensor (17) is electrically connected with the input end of the singlechip (16), and the output end of the singlechip (16) is electrically connected with the input ends of the motor (8) and the heater (13).