Bypass pipeline device of Roots vacuum unit

Abstract

The utility model relates to the technical field of Roots vacuum machines, and discloses a bypass pipeline device of a Roots vacuum unit. The Roots vacuum unit bypass pipeline device comprises a device structure assembly, a connecting structure assembly is installed at the upper end of the device structure assembly, a conveying pipe is installed at the upper end of the connecting structure assembly, a second valve is installed at the upper end of the conveying pipe, a conveying assembly is installed at the upper end of the connecting structure assembly, and a second valve is installed at the upper end of the conveying assembly. A Roots vacuum pump is installed at the upper end of the conveying assembly, a conveying pipe is installed on the left side of the upper end of the Roots vacuum pump, a first valve is installed at the upper end of the conveying pipe, and a reaction kettle is installed at the front end of the conveying pipe. In the using process, corrosive materials are sucked into a vacuum unit, and due to the fact that the gap of the roots 8-shaped wheel is too small, the materials sucked in the roots pump are stuck in the follow-up process, and the technical problem is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of Roots vacuum machines, in particular to a bypass pipeline device of a Roots vacuum machine unit. Background Art

[0002] A Roots vacuum pump (abbreviated as Roots pump) is a variable displacement vacuum pump equipped with two synchronously rotating bladed rotors in opposite directions. A small gap exists between the rotors and between the rotors and the inner wall of the pump casing, preventing them from contacting each other. Roots vacuum pumps have been proven in long-term operation in applications such as petroleum, chemical, plastics, pesticides, turbine rotor dynamic balancing, and aerospace simulation. Therefore, they should be vigorously promoted and applied domestically. They are also widely used in the petroleum, chemical, metallurgy, and textile industries. Vacuum pump accessories, such as vacuum pump mufflers, are used to control vacuum pump noise.

[0003] An existing Chinese utility model patent with reference publication number CN211819901U discloses a Roots pump bypass device that is easily disassembled and assembled, comprising an intake line, a Roots vacuum pump, and an exhaust line. The intake line is connected to the intake end of the Roots vacuum pump, and the exhaust line is connected to the exhaust end of the Roots vacuum pump. A bypass line is further connected between the intake and exhaust lines. A bypass valve is disposed between the bypass lines. The bypass valve comprises a valve body, a valve sleeve, and a valve core. The valve sleeve is connected to the upper end of the valve body. The valve core is slidably disposed within the valve sleeve. The interior of the valve body and the valve sleeve form a buffer chamber. A spring is disposed within the buffer chamber. The spring sleeve is disposed outside the valve sleeve and valve core, and the ends of the spring are respectively connected to the valve sleeve and valve core. The utility model provides a Roots pump bypass device that is easily disassembled and assembled, which reduces the operating load of the Roots vacuum pump and improves the operating stability and efficiency of the vacuum pump.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that during the use of the existing Roots vacuum unit, due to the need to extract materials into the reactor at irregular intervals, corrosive materials will be sucked into the vacuum unit during use. Since the gap between the Roots figure-8 wheels is too small, the subsequent Roots pump will get stuck when sucking materials, and corrosive gases will enter the Roots pump when sucking materials, causing subsequent damage to the equipment, thereby affecting the service life of the equipment and increasing operating costs. The existence of these problems has affected the use of the device. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides a bypass pipeline device for a Roots vacuum unit, which can effectively prevent the disadvantages of corrosive materials being sucked into the vacuum unit during use due to the need to extract materials into the reactor at irregular intervals, and the subsequent problems of materials being stuck inside the Roots pump due to the small gap between the Roots figure-8 wheels, thereby solving the above technical problems.

[0007] Technical Solution

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a bypass pipe device for a Roots vacuum unit, comprising a device structural assembly, wherein the upper end of the device structural assembly is equipped with a connecting structural assembly for connecting a water ring pump to a Roots vacuum pump, and the upper end of the connecting structural assembly is equipped with a conveying assembly for facilitating the separation and conveying of materials to prevent subsequent corrosive materials from entering the Roots vacuum pump;

[0009] A delivery pipe is installed at the upper end of the connecting structure assembly, and a second valve is installed at the upper end of the delivery pipe. The second valve is installed at the upper end of the delivery pipe to facilitate subsequent closing of the interior of the delivery pipe;

[0010] A Roots vacuum pump is installed at the upper end of the conveying assembly, a transport pipe is installed on the left side of the upper end of the Roots vacuum pump, a first valve is installed at the upper end of the transport pipe, a reactor is installed at the front end of the transport pipe, and the reactor is installed at the upper end of the transport pipe for easy use by subsequent devices.

[0011] As an optimal technical solution of the present invention, a water ring pump is installed at the upper end of the device structural assembly, a mounting bracket is installed at the lower end of the water ring pump, a connecting pipe is installed on the left side of the upper end of the water ring pump, and the connecting pipe is installed on the left side of the upper end of the water ring pump to facilitate the subsequent connection of the Roots vacuum pump.

[0012] As a preferred technical solution of the present invention, a connecting pipe is installed on the upper end of the connecting structure assembly, and the connecting pipe facilitates the subsequent connection of the water ring pump and the Roots vacuum pump for subsequent use.

[0013] As a preferred technical solution of the present invention, a connecting pipe is installed at the upper end of the conveying assembly, and the connecting pipe connects the Roots vacuum pump with the connecting pipe to facilitate subsequent use.

[0014] As a preferred technical solution of the present invention, the connecting structure assembly is installed on the left side of the upper end of the connecting pipe in the device structure assembly, and the conveying assembly is installed on the left side of the upper end of the communicating pipe in the connecting structure assembly.

[0015] As a preferred technical solution of the present invention, the mounting frame is a disassembly structure, the mounting frame is an eight-shaped structure, and the connecting pipe is connected to the communicating pipe.

[0016] As the preferred technical scheme of the utility model, the communicating pipe is a tee pipe structure, the left side of the communicating pipe is continuously connected with the adapter pipe, and the conveying pipe is connected with the conveying pipe.

[0017] As the preferred technical scheme of the utility model, the structure box of the first valve and the second valve, and the conveying pipe is L-shaped.

[0018] Compared with the prior art, the utility model provides a kind of bypass pipe device of Roots vacuum unit with the following beneficial effects:

[0019] 1. The utility model discloses a whole device is set, when workshop needs to extract corrosive material, the first valve of entering roots vacuum pump is closed, the second valve of entering water ring pump is opened, corrosive gas can not pass through roots vacuum pump, and the corrosion to roots vacuum pump is reduced, when high vacuum is needed, the first valve is opened, and the second valve is closed, and the vacuum degree is increased, the device solves the damage of equipment caused by corrosive gas entering roots pump when material is extracted, thereby prolong the service life of equipment, save cost, improve the safe use of equipment, effectively prevent the existing roots vacuum unit in use process, due to the need of extracting material to reaction kettle at any time, corrosive material is extracted into vacuum unit during use, due to the small gap between roots 8-shaped wheel, the subsequent roots pump is stuck, and corrosive gas enters roots pump when material is extracted, and subsequent equipment is damaged, thereby affecting the service life of equipment, and increasing operating cost. DRAWINGS

[0020] Figure 1 It is whole structure schematic view of the utility model;

[0021] Figure 2 It is structure device structure assembly schematic view of the utility model;

[0022] Figure 3 It is structure connection structure assembly schematic view of the utility model;

[0023] Figure 4 It is structure conveying assembly schematic view of the utility model;

[0024] Wherein: 1, device structure assembly;101, water ring pump;102, mounting bracket;103, connecting pipe;2, connection structure assembly;201, communicating pipe;202, conveying pipe;203, second valve;3, conveying assembly;301, adapter pipe;302, roots vacuum pump;303, conveying pipe;304, first valve;305, reaction kettle. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] See also Figure 1 - Figure 4 In this embodiment, a bypass pipeline device of a Roots vacuum unit includes: a device structure component 1, a connecting structure component 2 is installed on the upper end of the device structure component 1, a delivery pipe 202 is installed on the upper end of the connecting structure component 2, a second valve 203 is installed on the upper end of the delivery pipe 202, a delivery component 3 is installed on the upper end of the connection structure component 2, a Roots vacuum pump 302 is installed on the upper end of the delivery component 3, a transport pipe 303 is installed on the left side of the upper end of the Roots vacuum pump 302, a first valve 304 is installed on the upper end of the transport pipe 303, a reactor 305 is installed at the front end of the transport pipe 303, the connecting structure component 2 is installed on the left side of the upper end of the connecting pipe 103 in the device structure component 1, and the delivery component 3 is installed on the left side of the upper end of the connecting pipe 201 in the connecting structure component 2.

[0029] Through the above structure; the device structure component 1 facilitates the installation and connection of the upper end components, and facilitates the subsequent use of the entire device, the connection structure component 2 facilitates the connection between the water ring pump 101 and the Roots vacuum pump 302, and the conveying component 3 facilitates the separation and conveying of materials to prevent subsequent corrosive materials from entering the Roots vacuum pump 302.

[0030] See also Figure 1 - Figure 4 A water ring pump 101 is installed at the upper end of the device structure component 1, a mounting frame 102 is installed at the lower end of the water ring pump 101, a connecting pipe 103 is installed on the left side of the upper end of the water ring pump 101, the mounting frame 102 is a disassembly structure, the mounting frame 102 is an eight-shaped structure, and the connecting pipe 103 is connected to the connecting pipe 201.

[0031] Through the above structure: by installing the water ring pump 101, it is convenient to transport materials and facilitate subsequent use. The mounting frame 102 is installed at the lower end of the water ring pump 101, which is convenient for subsequent installation of the water ring pump 101. The connecting pipe 103 is installed on the left side of the upper end of the water ring pump 101, which is convenient for subsequent connection of the Rhodes vacuum pump 302.

[0032] See also Figure 1 - Figure 4 A connecting pipe 201 is installed at the upper end of the connecting structure component 2. The connecting pipe 201 is a three-way pipe structure. The left side of the connecting pipe 201 is further connected to the connecting pipe 301, and the delivery pipe 202 is connected to the transport pipe 303.

[0033] Through the above structure: by installing the connecting pipe 201, it is convenient to connect the water ring pump 101 with the Roots vacuum pump 302 in the future, which is convenient for subsequent use. The delivery pipe 202 is installed at the upper end of the connecting pipe 201 to facilitate the subsequent delivery of materials. The second valve 203 is installed at the upper end of the delivery pipe 202 to facilitate the subsequent closing of the interior of the delivery pipe 202.

[0034] See also Figure 1 - Figure 4 The upper end of the conveying component 3 is equipped with a connecting pipe 301, a structural box of the first valve 304 and the second valve 203, and the conveying pipe 303 is L-shaped.

[0035] Through the above structure: the Roots vacuum pump 302 is connected to the connecting pipe 201 by installing the connecting pipe 301, which is convenient for subsequent use; the Roots vacuum pump 302 is installed on the left side of the connecting pipe 301, which is convenient for the subsequent generation and use of vacuum gas; the transport pipe 303 is installed on the left side of the Roots vacuum pump 302, which is convenient for the subsequent transportation of the vacuum gas generated by the vacuum pump; the first valve 304 is installed at the upper end of the transport pipe 303, which is convenient for the subsequent closing of the inside of the transport pipe 303; the reactor 305 is installed at the upper end of the transport pipe 303, which is convenient for the subsequent use of the device.

[0036] During use, first, in order to prevent corrosive materials from being sucked into the vacuum unit and causing the Roots pump to get stuck, a pipeline is installed between the water ring pump 101 and the Roots vacuum pump 302, a connecting pipe 103 is installed on the upper end of the water ring pump 101, and a connecting pipe 301 is installed on the right side of the upper end of the Roots vacuum pump 302. The water ring pump 101 and the Roots vacuum pump 302 are connected through the connecting pipe 201. The connecting pipe 201 is a three-way pipe structure, which is convenient for the subsequent connection of the delivery pipe 202 through the front-end pipeline. A second valve 203 is installed on the upper end of the delivery pipe 202. A transport pipe 303 is installed on the left side of the Roots vacuum pump 302, and a first valve 304 is installed on the upper end of the transport pipe 303. When the workshop needs to extract corrosive materials, the first valve 304 entering the Roots vacuum pump 302 is closed, and the second valve 203 entering the water ring pump 101 is opened. At this time, corrosive gases are prevented from entering the Roots vacuum pump 302, reducing corrosion to the Roots vacuum pump. When high vacuum is required, the first valve 304 at the upper end of the Roots vacuum pump 302 is opened, and the second valve 203 at the upper end of the water ring pump 101 is closed to increase the overall vacuum degree.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bypass pipe device for a Roots vacuum unit, characterized in that: The invention comprises a device structure component (1), wherein a connection structure component (2) is installed on the upper end of the device structure component (1), a delivery pipe (202) is installed on the upper end of the connection structure component (2), a second valve (203) is installed on the upper end of the delivery pipe (202), a delivery component (3) is installed on the upper end of the connection structure component (2), a Roots vacuum pump (302) is installed on the upper end of the delivery component (3), a delivery pipe (303) is installed on the left side of the upper end of the Roots vacuum pump (302), a first valve (304) is installed on the upper end of the delivery pipe (303), and a reaction kettle (305) is installed at the front end of the delivery pipe (303).

2. A Roots vacuum unit bypass pipe device according to claim 1, characterized in that: A water ring pump (101) is installed at the upper end of the device structural component (1), a mounting frame (102) is installed at the lower end of the water ring pump (101), and a connecting pipe (103) is installed on the left side of the upper end of the water ring pump (101).

3. The bypass pipe device of a Roots vacuum unit according to claim 1, characterized in that: A connecting pipe (201) is installed at the upper end of the connecting structure assembly (2).

4. The bypass pipe device of a Roots vacuum unit according to claim 1, characterized in that: A connecting pipe (301) is installed at the upper end of the conveying component (3).

5. The bypass pipe device of a Roots vacuum unit according to claim 1, characterized in that: The connecting structure component (2) is installed on the left side of the upper end of the connecting pipe (103) in the device structure component (1), and the conveying component (3) is installed on the left side of the upper end of the connecting pipe (201) in the connecting structure component (2).

6. The bypass pipe device of a Roots vacuum unit according to claim 2, characterized in that: The mounting frame (102) is a disassembly structure, the mounting frame (102) is an "eight" structure, and the connecting pipe (103) is connected to the connecting pipe (201).

7. The bypass pipe device of a Roots vacuum unit according to claim 3, characterized in that: The connecting pipe (201) is a three-way pipe structure. The left side of the connecting pipe (201) is further connected to the connecting pipe (301), and the delivery pipe (202) is connected to the transport pipe (303).

8. The bypass pipe device of a Roots vacuum unit according to claim 4, characterized in that: The structural box of the first valve (304) and the second valve (203), and the transport pipe (303) are L-shaped.

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