Pump body and mixing pump

Abstract

The utility model discloses a pump body and a mixing pump, which are characterized in that the pump body comprises a body, and a first cavity and a second cavity which are mutually independent are arranged in the body; a first through groove and a second through groove are formed in the outer wall of the body, and the first through groove and the second through groove are communicated with the first cavity and the second cavity respectively; a connecting part is further detachably installed on the outer wall of the body, and a connecting channel enabling the first through groove and the second through groove to be communicated is arranged in the connecting part. According to the utility model, the convenience of installation, maintenance and debugging can be improved, and the difficulty of installation, maintenance and debugging can be reduced.

Description

Technical Field

[0001] The utility model relates to a pump body and a mixing pump. Background Art

[0002] There are many types of vacuum pumps, and different vacuum pumps are used in different industries. For example, Roots vacuum pumps and screw vacuum pumps can be used alone or in combination. When used in combination, in the conventional way, such as patent number: CN202121962223.8, patent name: Based on industrial high-efficiency and energy-saving Roots screw vacuum pump group, this structure has the following shortcomings: 1. The screw pump is set below the Roots pump, which occupies a large space; 2. Both the Roots pump and the screw pump require a separate motor to drive, which is not only more expensive, but also more energy-consuming; 3. The air outlet temperature of the screw pump is high and it is easy to be damaged. At the same time, in a dusty environment, it is also prone to dust clogging, and the maintenance rate is relatively high.

[0003] To solve the above problems, a hybrid pump structure in which Roots pump and screw pump are connected to each other can be developed. However, if the outlet of Roots pump and the inlet of screw pump are directly connected, in conventional design, Figure 1 As shown, generally, through grooves 103 are directly opened on the side walls of the connection between the Roots pump body 101 and the screw pump body 102, respectively, and are connected with the corresponding screw pump body cavity 104 and the Roots pump body cavity 105, and then the two are sealed and connected to achieve the connection of the two through grooves, and then the screw pump body cavity and the Roots pump body cavity are connected through the two through grooves to achieve the setting of the mixing pump. However, this design has the following shortcomings:

[0004] 1. The mixing pump preferably adopts a coaxial structure, that is, both the Roots rotor component and the screw rotor component are installed on the same shaft. Therefore, when assembling the two pump bodies, it is necessary to ensure the assembly accuracy and quality of the Roots rotor component and the Roots pump body, and also to ensure the assembly accuracy and quality of the screw rotor component and the screw pump. The structure with a through groove directly opened on the side lacks an observation port after the screw pump body and the Roots pump body are connected, which makes assembly more difficult and makes it difficult to control assembly accuracy;

[0005] 2. The working environment requirements of the screw pump are higher. If there is too much dust, or the temperature is too high or too low, it will cause problems with the screw pump, such as blockage, condensation blockage and other problems;

[0006] 3. Inconvenient maintenance. If a problem occurs, the screw pump and Roots pump need to be disassembled to confirm the problem, and it is difficult to repair quickly.

[0007] 4. During processing, it is necessary to ensure that the through grooves on the screw pump body and the through grooves on the Roots pump body are accurately aligned. If there is any misalignment, the size between the through grooves of the two assembly connection numbers will become smaller, resulting in a faster air flow speed and higher temperature entering the screw pump, causing the screw pump to be blocked, overheated and damaged. Summary of the invention

[0008] The utility model aims to provide a pump body and a mixing pump. By using the structure, the convenience of installation and maintenance can be improved, and fluid processing components can also be installed to ensure the use effect and stability of use.

[0009] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a pump body, comprising a main body, wherein a first cavity and a second cavity which are independent of each other are arranged in the main body;

[0010] A first through groove and a second through groove are provided on the outer wall of the body, and the first through groove and the second through groove are respectively connected to the first cavity and the second cavity;

[0011] A connecting component is detachably mounted on the outer wall of the main body, and a connecting channel is disposed in the connecting component to connect the first through groove and the second through groove.

[0012] In the above technical solution, a fluid processing component is detachably placed or installed in the connecting channel.

[0013] In the above technical solution, the connecting component includes a mounting block and a sealing plate, a cavity is provided on a side of the mounting block away from the main body, a first channel and a second channel respectively connected to the cavity are provided on a side wall of the mounting block facing the main body, the mounting block is mounted on an outer wall of the main body, the first channel connects the first through groove with the cavity, the second channel connects the second through groove with the cavity, the sealing plate is mounted on the mounting block on the opposite side of the first channel and the second channel, and seals the end of the cavity.

[0014] In the above technical solution, the first channel, the second channel and the cavity constitute the connecting channel.

[0015] In the above technical solution, a second sealing ring is provided between the sealing plate and the mounting block, and the second sealing ring is arranged outside the cavity.

[0016] In the above technical solution, the first channel and the second channel are respectively formed by a plurality of through holes, and the through holes connect the cavity with the outer surface of the mounting block.

[0017] In the above technical solution, two first sealing rings are further provided between the connecting component and the body, and the two first sealing rings are respectively arranged outside the first through groove and the second through groove.

[0018] In the above technical solution, the main body includes a first pump body and a second pump body, the first cavity and the first through groove are arranged in the first pump body, the second cavity and the second through groove are arranged in the second pump body, the first pump body and the second pump body are connected, and the two ends of the connecting component are respectively installed on the outer walls of the first pump body and the second pump body.

[0019] The present invention also provides a mixing pump, comprising the above-mentioned pump body, wherein two mutually meshing Roots rotor components are rotatably installed in the first cavity, and two mutually meshing screw rotor components are rotatably installed in the second cavity.

[0020] In the above technical solution, an air inlet communicating with the first cavity is provided on the outer wall of the main body, and an air outlet communicating with the second cavity is provided on the outer wall of the main body.

[0021] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] 1. In the utility model, a first through groove and a second through groove are arranged on the main body, which are connected to the first cavity and the second cavity respectively, and a connecting component is arranged on the main body to connect the first through groove and the second through groove, so that the air passages of the two cavities can be directly connected outside the main body, which can facilitate assembly, improve assembly convenience, and reduce processing difficulty and assembly difficulty;

[0023] 2. In the utility model, a fluid processing component can be placed or installed in the connecting channel, and the fluid can be processed by the fluid processing component, which can effectively ensure that the fluid entering another cavity is more in line with the processing environment of the equipment, thereby reducing the maintenance rate and extending the service life;

[0024] 3. The connecting parts in the utility model adopt mounting blocks and sealing plates, which are convenient for installation, disassembly, maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the background technology;

[0026] Figure 2 It is a schematic cross-sectional view of the connection between the connecting component and the pump body in the first embodiment of the utility model;

[0027] Figure 3 It is a schematic diagram of the structure of the mixing pump in the first embodiment of the utility model;

[0028] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure.

[0029] Wherein: 1. body; 2. first cavity; 3. second cavity; 4. first through groove; 5. second through groove; 6. connecting component; 7. connecting channel; 8. Roots rotor component; 9. screw rotor component; 10. driving mechanism; 11. connecting shaft; 12. air inlet; 13. exhaust port; 14. mounting block; 15. sealing plate; 16. cavity; 17. first channel; 18. second channel; 19. first sealing ring; 20. second sealing ring; 21. first pump body; 22. second pump body; 101. Roots pump body; 102. screw pump body; 103. through groove; 104. screw pump body cavity; 105. Roots pump body cavity. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0031] Example 1: See Figures 2 to 4 As shown, a pump body comprises a body 1, wherein the body 1 is provided with a first cavity 2 and a second cavity 3 which are independent of each other;

[0032] A first through slot 4 and a second through slot 5 are provided on the outer wall of the body 1, and the first through slot 4 and the second through slot 5 are communicated with the first cavity 2 and the second cavity 3 respectively;

[0033] A connecting component 6 is detachably mounted on the outer wall of the main body 1 , and a connecting channel 7 is disposed in the connecting component 6 to connect the first through groove 4 and the second through groove 5 .

[0034] See also Figure 3 , 4 As shown, the utility model also provides a mixing pump, including the above-mentioned pump body, wherein two mutually meshing Roots rotor components 8 are rotatably installed in the first cavity 2, and two mutually meshing screw rotor components 9 are rotatably installed in the second cavity 3.

[0035] In this embodiment, a driving mechanism 10 is installed on the outer wall of the body 1 on the side of the first cavity 2, and two connecting shafts 11 are rotatably installed in the body 1. The connecting shafts 11 are inserted into the first cavity 2 and the second cavity 3. Each Roots rotor component 8 in the first cavity 2 is installed on a corresponding connecting shaft 11, and each screw rotor component 9 in the second cavity 3 is installed on a corresponding connecting shaft 11. The driving mechanism drives the two connecting shafts to rotate simultaneously, and the rotation directions are opposite, thereby realizing the vacuuming action. Among them, an air inlet 12 connected to the first cavity is provided on the outer wall of the body, and an exhaust port 13 connected to the second cavity 3 is provided on the outer wall of the body 1. In this way, the Roots rotor component draws air into the first cavity from the air inlet, and then sends it into the second cavity through the first through groove, the connecting channel and the second through groove. The gas sent into the second cavity is discharged from the exhaust port through the Roots rotor component, thereby realizing the vacuuming action.

[0036] When assembling the mixing pump, first install the coupling with the Roots rotor component, pre-adjust the clearance of the Roots rotor component, and then install the screw rotor component. After installing the screw rotor component, it is necessary to adjust the clearance of the screw rotor component and the clearance between the screw rotor component and the second cavity. In this process, the clearance can be adjusted through the first through groove and the second through groove, so that the clearance of the Roots rotor component and the screw rotor component can be adjusted to ensure qualified assembly, and finally the connection component can be installed. Among them, if there is a problem during subsequent use, the connection component can be directly disassembled, so that the situation in the first cavity and the second cavity can be observed through the first through groove and the second through groove, and targeted maintenance, cleaning or disassembly can be carried out. For example, if there is a blockage inside, it is not necessary to disassemble the machine, but to clean it directly from the first through groove and the second through groove, so that there is no need to disassemble the machine, install the machine, and re-adjust the clearance.

[0037] Furthermore, a fluid processing component (the fluid processing component is not shown in the figure) is detachably placed or installed in the connecting channel.

[0038] Among them, the fluid handling component can be a filter, an alkali bag, a cooler or a heater. The filter can be used to filter dust and other debris flowing through the connecting channel. The alkali bag is used to adsorb water vapor to prevent the dust and water vapor from mixing and blocking the adjacent screw rotor components or the second cavity. If the gas temperature in the first cavity is too high, a cooler can be set to cool the gas flowing into the second cavity to prevent the coking of hydrocarbon mixtures. If the temperature of the gas sent from the first cavity to the second cavity is too low, the temperature of the gas entering the second cavity is too low, which is prone to condensation, so that dust and condensation mix and block the second cavity. A heater can be used to heat the gas to prevent condensation. Of course, there are other situations, which can be selected according to different construction environments. This is scalable and has a wider range of applications. It can effectively ensure the vacuuming effect of the mixing pump, extend its service life, and reduce the maintenance rate.

[0039] See also Figure 2 , 4 As shown, the connecting component 6 includes a mounting block 14 and a sealing plate 15, a cavity 16 is provided on a side of the mounting block 14 away from the body 1, a first channel 17 and a second channel 18 which are respectively connected to the cavity 16 are provided on the side wall of the mounting block 14 facing the body 1, the mounting block 14 is mounted on the outer wall of the body 1, the first channel 17 connects the first through groove 4 with the cavity 16, the second channel 18 connects the second through groove 5 with the cavity 16, the sealing plate 15 is mounted on the mounting block 14 on the opposite side of the first channel 17 and the second channel 18, and seals the end of the cavity 16.

[0040] In this embodiment, when the connecting component is installed, the mounting block is directly installed on the outer wall of the body, and the mounting block is locked and connected to the body through bolts, the first channel is opposite to the first through groove, and the second channel is opposite to the second through groove. Among them, two first sealing rings 19 are also provided between the connecting component 7 and the body 1, and the two first sealing rings 19 are respectively arranged on the outside of the first through groove 4 and the second through groove 6. In this way, the outside of the connection between the first through groove and the first channel will be sealed by the first sealing ring, and the outside of the connection between the second through groove and the second channel will be sealed by the first sealing ring, so that the gas sent out of the first cavity through the first through groove can completely enter the first channel and be sent into the cavity, and the gas in the cavity can completely enter the second through groove through the second channel, and then be sent into the second cavity, so as to ensure the sealing effect. Among them, the sealing plate is used to seal the end of the cavity, so that the first channel, the second channel and the cavity constitute the connecting channel. At the same time, a cavity, a first channel and a second through groove are arranged on the mounting block, and then the end of the cavity is sealed by a cover plate, so as to facilitate the processing of the cavity, the first through groove and the second through groove on the mounting block.

[0041] See also Figure 2 , 4 As shown, a second sealing ring 20 is provided between the sealing plate 15 and the mounting block 14, and the second sealing ring 20 is arranged outside the cavity 16. In this way, it can be ensured that the sealing plate completely seals the end of the cavity to prevent air leakage.

[0042] See also Figure 2 , 4 As shown, the first channel 17 and the second channel 18 are respectively formed by a plurality of through holes, and the through holes connect the cavity with the outer surface of the mounting block.

[0043] The first channel and the second channel form a mesh structure, and the fluid processing component can be directly placed in the cavity, and the fluid processing component will not fall from the first channel or the second channel into the first cavity or the second cavity. At the same time, if the fluid processing component needs to be powered or connected to a pipeline, a hole can be set on the cover plate, and the circuit or pipeline can be connected to the fluid processing component through the hole, and a sealing ring can be set at the connection between the circuit or pipeline and the hole.

[0044] See also Figures 2 to 4As shown, the main body 1 includes a first pump body 21 and a second pump body 22, the first cavity 2 and the first through groove 4 are arranged in the first pump body 21, and the first through groove 4 connects the first cavity 2 with the outer wall of the first pump body 21; the second cavity 3 and the second through groove 5 are arranged in the second pump body 22, and the second through groove 5 connects the second cavity 3 with the outer wall of the second pump body 22; the first pump body 21 and the second pump body 22 are connected, and the two ends of the connecting component 6 are respectively installed on the outer walls of the first pump body 21 and the second pump body 22. The air inlet is arranged on the first pump body, and the exhaust port is arranged on the second pump body.

[0045] In this embodiment, the main body is connected by two pump bodies, which is convenient for processing. At the same time, the two ends of the connecting component are respectively installed on the first pump body and the second pump body, and the first pump body and the second pump body can also be connected and reinforced to ensure the installation strength.

[0046] Among them, in this embodiment, the structure of the first pump body and the Roots pump rotor component can be the existing technology, such as patent number: 202322077615.1, patent name: a two-stage Roots vacuum pump. Of course, it can also be a single-stage Roots vacuum pump. If a single-stage Roots vacuum pump is used, the air inlet and the connecting component are respectively arranged on opposite sides of the body. If a two-stage Roots vacuum pump is used, the air inlet and the connecting component are arranged on the same side of the body.

[0047] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0048] In the present utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or an integral one; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, for example, the two can form a mechanical abutment or abutment connection through abutment, contact, etc., the two can also be directly hung or hung through an intermediate medium, etc., or it can be the internal connection of the two elements or the interaction relationship between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A pump body, characterized in that: It comprises a body, wherein a first cavity and a second cavity which are independent of each other are arranged in the body; A first through groove and a second through groove are provided on the outer wall of the body, and the first through groove and the second through groove are respectively connected to the first cavity and the second cavity; A connecting component is detachably mounted on the outer wall of the main body, and a connecting channel is provided in the connecting component to connect the first through groove and the second through groove.

2. The pump body according to claim 1, characterized in that: A fluid processing component is detachably placed or installed in the connecting channel.

3. The pump body according to claim 1, characterized in that: The connecting component includes a mounting block and a sealing plate, wherein a cavity is provided on a side of the mounting block away from the body, and a first channel and a second channel respectively connected to the cavity are provided on a side wall of the mounting block facing the body, and the mounting block is mounted on an outer wall of the body, and the first channel connects the first through groove with the cavity, and the second channel connects the second through groove with the cavity, and the sealing plate is mounted on the mounting block on the opposite side of the first channel and the second channel, and seals the end of the cavity.

4. The pump body according to claim 3, characterized in that: The first channel, the second channel and the cavity constitute the connecting channel.

5. The pump body according to claim 3, characterized in that: A second sealing ring is provided between the sealing plate and the mounting block, and the second sealing ring is arranged outside the cavity.

6. The pump body according to claim 3, characterized in that: The first channel and the second channel are respectively formed by a plurality of through holes, and the through holes connect the cavity with the outer surface of the mounting block.

7. The pump body according to claim 1, characterized in that: Two first sealing rings are further provided between the connecting component and the body, and the two first sealing rings are respectively arranged outside the first through groove and the second through groove.

8. The pump body according to claim 1, characterized in that: The main body includes a first pump body and a second pump body, the first cavity and the first through groove are arranged in the first pump body, the second cavity and the second through groove are arranged in the second pump body, the first pump body and the second pump body are connected, and the two ends of the connecting component are respectively installed on the outer walls of the first pump body and the second pump body.

9. A mixing pump, characterized in that: It comprises a pump body as claimed in any one of claims 1 to 8, wherein two mutually meshing Roots rotor components are rotatably installed in the first cavity, and two mutually meshing screw rotor components are rotatably installed in the second cavity.

10. The mixing pump according to claim 9, characterized in that: An air inlet communicating with the first cavity is provided on the outer wall of the main body, and an air outlet communicating with the second cavity is provided on the outer wall of the main body.

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