CN212155165U

CN212155165U - Screw vacuum pump cooling device

Info

Publication number: CN212155165U
Application number: CN202020865867.4U
Authority: CN
Inventors: 雒瑞银; 唐凯; 侯春蕾; 季先恒; 朱军
Original assignee: Ningxia Taihe Aramid Fiber Co ltd
Current assignee: Ningxia Taihe Aramid Fiber Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-12-15
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a screw vacuum pump cooling device, including the casing, the inside fixed mounting of casing has multiunit installation piece, and multiunit installation piece fixed mounting has the vacuum cavity, and four group's bearings are installed about vertical central line symmetry to the inside vacuum cavity, and every two sets of bearings are inlayed and are run through and install a set of pivot, and every pivot of group all rotates the installation with the vacuum cavity, and two sets of pivot fixed mounting have first screw rod and second screw rod, and two sets of pivots are sealed with the equal fixed mounting of vacuum cavity outer wall junction, and exhaust duct is installed to vacuum cavity top intercommunication. The utility model discloses a fixed surface installs two sets of spiral pipes in the vacuum cavity to the spiral pipe circulation lets in the cooling water, and the cooling water in the spiral pipe can take away the heat that the vacuum cavity produced, because spiral pipe evenly distributed is on the vacuum cavity surface, and the whole length of spiral pipe is longer, can promote the spiral pipe and carry out abundant heat exchange efficiency to the vacuum cavity surface, thereby promotes the cooling effect.

Description

Screw vacuum pump cooling device

Technical Field

The utility model relates to a screw vacuum pump technical field specifically is a screw vacuum pump cooling device.

Background

Currently, screw vacuum pumps are air-extracting devices that utilize a pair of screws to perform suction and exhaust actions by rotating in a pump housing in a synchronized, high-speed, reverse direction. In the current market, the development of various vacuum pumps is more and more influenced by vacuum application occasions, and a general vacuum system cannot meet the requirements of cleanness, oil free and corrosion resistance, so that in recent years, the market demand of dry vacuum pumps is large, the gas temperature generated by a vacuum cavity of the dry vacuum pump is too high, the vacuum cavity needs to be cooled to prevent a rotor and a shell from deforming, and therefore a screw vacuum pump cooling device is provided.

In the prior art (No. CN208518901U), a cooling device for a screw vacuum pump includes a housing, a screw, and a motor, wherein a cooling chamber is disposed in the housing outside the screw, one end of a cylinder passes through the housing and is connected to a cooling water inlet of the cooling chamber, the other end of the cylinder is closed and extends out of the housing, a cylinder is disposed outside the closed end of the cylinder, a piston rod of the cylinder passes through the closed end of the cylinder and is connected to a piston pushing and pulling device disposed inside the cylinder, a through hole is disposed on a wall of the cylinder above the piston pushing and pulling device, the through hole is connected to a pipeline, the pipeline is connected to a water source, and a cooling. The utility model adopts the above structure, simple structure, reasonable in design, it is with low costs, realize effectively resources are saved to screw vacuum pump's cooling in better protective apparatus.

In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved; the device lacks vacuum cavity temperature detection measures and emergency measures with overhigh temperature, and the structure cooling efficiency of the cooling cavity is lower. According to the water cooling system, the flow regulating valve is fixedly installed on the input pipeline, the amount of water introduced into the cooling water can be regulated according to the temperature of the water thermometer, when the numerical value of the water thermometer is higher, the amount of the cooling water needs to be increased to accelerate the cooling of the vacuum cavity, and the structure can prevent the working temperature of the vacuum cavity from being overhigh; through spiral pipe evenly distributed on the vacuum cavity surface, and the whole length of spiral pipe is longer, can promote the spiral pipe and carry out abundant heat exchange efficiency to the vacuum cavity surface to promote the cooling effect, solved above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screw vacuum pump cooling device has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a screw vacuum pump cooling device comprises a shell, wherein a plurality of groups of installation blocks are fixedly installed inside the shell, a vacuum cavity is fixedly installed on the plurality of groups of installation blocks, four groups of bearings are symmetrically installed inside the vacuum cavity about a vertical central line, a group of rotating shafts are embedded and penetrated in each group of bearings, each group of rotating shafts are rotatably installed with the vacuum cavity, a first screw and a second screw are fixedly installed on the two groups of rotating shafts, sealing gaskets are fixedly installed at the connecting parts of the two groups of rotating shafts and the outer wall of the vacuum cavity, an air exhaust pipeline is communicated and installed at the top of the vacuum cavity and is installed with the top of the shell in a penetrating manner, two groups of spiral pipes are symmetrically and fixedly installed on the outer wall of the vacuum cavity about the vertical central line, a first pipeline is communicated and installed at the input end, two sets of second pipelines all with output pipeline intercommunication installation, output pipeline fixed mounting has the temperature table.

As a preferred embodiment of the utility model, the overall dimension of each group of spiral pipes is uniform.

As a preferred embodiment of the present invention, the clamping inner diameter of each group of spiral tubes is equal to the outer diameter of the vacuum chamber.

As a preferred embodiment of the present invention, the installation position of the input pipe is located right above the casing.

As a preferred embodiment of the present invention, the installation position of the output duct is located directly below the casing.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a fixed surface installs two sets of spiral pipes in the vacuum cavity to the spiral pipe circulation lets in the cooling water, and the cooling water in the spiral pipe can take away the heat that the vacuum cavity produced, because spiral pipe evenly distributed is on the vacuum cavity surface, and the whole length of spiral pipe is longer, can promote the spiral pipe and carry out abundant heat exchange efficiency to the vacuum cavity surface, thereby promotes the cooling effect.

2. The utility model discloses an input pipeline lets in the cooling water, and the cooling water is retrieved to the output pipeline, is favorable to the recycling of water resource, has flow control valve through input pipeline fixed mounting, can adjust the water yield that lets in the cooling water according to the temperature of the temperature table, and when temperature table numerical value is higher, the cooling of vacuum cavity is accelerated to the water yield that needs increase cooling water, and such structure can prevent that vacuum cavity operating temperature is too high.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a front view of a cooling device of a screw vacuum pump according to the present invention;

fig. 2 is a schematic structural view of the spiral pipe of the screw vacuum pump cooling device of the present invention.

In the figure: the device comprises an input pipeline 1, a flow regulating valve 2, a mounting block 3, a first pipeline 4, a spiral pipe 5, an air exhaust pipeline 6, a first screw rod 7, a sealing gasket 8, a rotating shaft 9, a second screw rod 10, a shell 11, a bearing 12, a vacuum cavity 13, a water temperature meter 14, an output pipeline 15 and a second pipeline 16.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, the utility model provides a technical solution: a screw vacuum pump cooling device comprises a shell 11, wherein a plurality of groups of mounting blocks 3 are fixedly mounted inside the shell 11, a vacuum cavity 13 is fixedly mounted on the plurality of groups of mounting blocks 3, four groups of bearings 12 are symmetrically mounted inside the vacuum cavity 13 about a vertical central line, each two groups of bearings 12 are embedded and penetrated by a group of rotating shafts 9, each group of rotating shafts 9 are rotatably mounted with the vacuum cavity 13, a first screw 7 and a second screw 10 are fixedly mounted on the two groups of rotating shafts 9, sealing gaskets 8 are fixedly mounted at the joints of the two groups of rotating shafts 9 and the outer wall of the vacuum cavity 13, an air extraction pipeline 6 is communicated and mounted at the top of the vacuum cavity 13, the air extraction pipeline 6 is communicated and mounted with the top of the shell 11, two groups of spiral pipes 5 are symmetrically and fixedly mounted on the outer wall of the vacuum cavity 13, two sets of first pipelines 4 all communicate the installation with input pipeline 1, and input pipeline 1 fixed mounting has flow control valve 2, and two sets of second pipelines 16 all communicate the installation with output pipeline 15, and output pipeline 15 fixed mounting has temperature table 14.

In this embodiment, as shown in fig. 1 and 2, two sets of spiral pipes 5 are fixedly installed on the outer surface of the vacuum chamber 13, and the cooling water is circularly introduced into the spiral pipes 5, so that the heat generated by the vacuum chamber 13 can be taken away by the cooling water in the spiral pipes 5, and the spiral pipes 5 are uniformly distributed on the surface of the vacuum chamber 13, and the whole length of the spiral pipes 5 is long, so that the heat exchange efficiency of the spiral pipes 5 on the surface of the vacuum chamber 13 can be improved, and the cooling effect can be improved.

Wherein, the overall dimension of each group of spiral pipes 5 is consistent.

Wherein the clamping inner diameter of each set of spiral tubes 5 is equal to the outer diameter of the vacuum chamber 13.

In this embodiment, as shown in fig. 1 and 2, the cooling water is introduced through the input pipeline 1, the cooling water is recovered through the output pipeline 15, the recycling of water resources is facilitated, the flow regulating valve 2 is fixedly installed through the input pipeline 1, the amount of the introduced cooling water can be regulated according to the temperature of the water thermometer 14, when the value of the water thermometer 14 is high, the cooling of the vacuum cavity 13 is accelerated by increasing the amount of the cooling water, and the structure can prevent the working temperature of the vacuum cavity 13 from being too high.

Wherein the installation position of the input pipe 1 is located directly above the housing 11.

Wherein the mounting position of the output duct 15 is located directly below the housing 11.

The working principle is as follows: when the cooling device of the screw vacuum pump is used, cooling water is introduced through the input pipeline 1, the cooling water is recycled through the output pipeline 15, the recycling of water resources is facilitated, two groups of spiral pipes 5 are fixedly arranged on the outer surface of the vacuum cavity 13, and the cooling water is circularly introduced into the spiral pipe 5, the cooling water in the spiral pipe 5 can take away the heat generated by the vacuum cavity 13, because the spiral pipe 5 is evenly distributed on the surface of the vacuum cavity 13 and the whole length of the spiral pipe 5 is longer, the heat exchange efficiency of the spiral pipe 5 on the surface of the vacuum cavity 13 can be improved, thereby improving the cooling effect, the flow regulating valve 2 is fixedly arranged on the input pipeline 1, the water quantity of the introduced cooling water can be regulated according to the temperature of the water temperature meter 14, when the water temperature gauge 14 has a high value, the amount of cooling water needs to be increased to accelerate the cooling of the vacuum chamber 13, so that the structure can prevent the operating temperature of the vacuum chamber 13 from being too high.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A screw vacuum pump cooling device, comprising a housing (11), characterized in that: the inner part of the shell body (11) is fixedly provided with a plurality of groups of installation blocks (3), the plurality of groups of installation blocks (3) are fixedly provided with a vacuum cavity (13), the inner part of the vacuum cavity (13) is symmetrically provided with four groups of bearings (12) about a vertical central line, every two groups of bearings (12) are embedded with a group of rotating shafts (9) in a penetrating way, each group of rotating shafts (9) is rotatably installed with the vacuum cavity (13), the two groups of rotating shafts (9) are fixedly provided with a first screw rod (7) and a second screw rod (10), the joint of the two groups of rotating shafts (9) and the outer wall of the vacuum cavity (13) is fixedly provided with a sealing gasket (8), the top of the vacuum cavity (13) is communicated and provided with an air extraction pipeline (6), the air extraction pipeline (6) is rotatably installed with the top of the shell body (11), the outer, every group spiral pipe (5) output all communicates and installs second pipeline (16), and two sets of first pipeline (4) all communicate the installation with input pipeline (1), and input pipeline (1) fixed mounting has flow control valve (2), and two sets of second pipeline (16) all communicate the installation with output pipeline (15), and output pipeline (15) fixed mounting has temperature table (14).

2. A screw vacuum pump cooling device according to claim 1, characterized in that: the overall dimension of each group of spiral pipes (5) is consistent.

3. A screw vacuum pump cooling device according to claim 1, characterized in that: the clamping inner diameter of each group of spiral pipes (5) is equal to the outer diameter of the vacuum cavity (13).

4. A screw vacuum pump cooling device according to claim 1, characterized in that: the installation position of the input pipeline (1) is positioned right above the shell (11).

5. A screw vacuum pump cooling device according to claim 1, characterized in that: the installation position of the output pipeline (15) is positioned right below the shell (11).