Water jet Roots vacuum pump device

Abstract

The utility model relates to the field of vacuum pumps, in particular to a water jet Roots vacuum pump device which is arranged in a vacuum tank and comprises a sub-control assembly, and the sub-control assembly comprises a first tap pipe, an air inlet valve, an input pipe, a Roots pump, an output pipe, an air outlet valve, a bypass valve, a second tap pipe, a check valve and a water jet vacuum pump. The water jet vacuum pump and the roots pump are started under the high-vacuum-degree working condition or only the water jet vacuum pump is started under the low-vacuum-degree working condition, so that the unit can perform appropriate scheme switching according to the low-vacuum-degree or high-vacuum-degree requirement to achieve the purposes of energy conservation and consumption reduction.

Description

Technical Field

[0001] The utility model relates to the field of vacuum pumps, in particular to a water jet Roots vacuum pump device. Background Art

[0002] Traditional production of chemical raw materials can cause great harm to human health, but with the development of technology, mature technology can meet production needs while protecting human health.

[0003] During the production process, the medium required for chemical production needs to be stored in a vacuum tank. When it is needed, the existing output unit usually adopts a water jet vacuum pump and a Roots vacuum pump assembled in series, which can obtain a higher vacuum degree and meet the production function requirements.

[0004] However, when the existing device encounters a situation in the production process that does not require such a high vacuum condition, it is necessary to start the water jet vacuum pump and the Roots vacuum pump to operate both pumps at the same time, which causes energy waste. Utility Model Content

[0005] The utility model aims to provide a water jet Roots vacuum pump device, aiming to solve the problem that in the existing device, when encountering a condition that does not require such a high vacuum degree during the production process, it is necessary to start the water jet vacuum pump and the Roots vacuum pump to operate both pump bodies at the same time, thereby causing energy waste.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a water jet Roots vacuum pump device, which is arranged in a vacuum tank.

[0007] Including sub-control components,

[0008] The sub-control component includes a first branch pipe, an air intake valve, an input pipe, a Roots pump, an output pipe, an air outlet valve, a bypass valve, a second branch pipe, a check valve and a water jet vacuum pump. The first branch pipe is connected to the vacuum tank and is located at one side of the vacuum tank. The air intake valve is connected to the first branch pipe and is located at one side of the first branch pipe. The input pipe is connected to the air intake valve and is located at one side of the air intake valve. The Roots pump is connected to the input pipe and is located at one side of the input pipe. The output pipe is connected to the Roots pump and is located at a side of the Roots pump away from the input pipe. The air outlet valve is connected to the output pipe and is located at one side of the output pipe. The bypass valve is connected to the first branch pipe and is located at a side of the first branch pipe away from the air intake valve. The second branch pipe is respectively connected to the air outlet valve and the bypass valve. The second branch pipe is located at a side of the air outlet valve close to the bypass valve. The check valve is connected to the second branch pipe and is located at one side of the second branch pipe. The water jet vacuum pump is arranged on the check valve.

[0009] Wherein, the water jet vacuum pump includes a pump body, an external pipe and a fixing component, the pump body is connected to the check valve and is located on one side of the check valve; the external pipe is connected to the pump body and is located on one side of the pump body; the fixing component is arranged on the pump body.

[0010] Wherein, the fixed component includes a fixed ring frame, an abutment plate, a connecting component and a moving component, the fixed ring frame is fixedly connected to the pump body and is located on one side of the pump body; the abutment plate is connected to the fixed ring frame through the connecting component and is located on a side of the fixed ring frame close to the external pipe; the connecting component is arranged on the fixed ring frame and connected to the abutment plate; the moving component is arranged on the fixed ring frame.

[0011] Wherein, the connecting component includes a limit rod and a limit block, the limit rod is slidably connected to the fixed ring frame, and is fixedly connected to the abutment plate, and is located on a side of the fixed ring frame close to the abutment plate; the limit block is fixedly connected to the limit rod and is located on one side of the limit rod.

[0012] Wherein, the moving component includes a screw and a rotating head, the screw is threadedly connected to the fixed ring frame and is located on a side of the fixed ring frame close to the abutment plate; the rotating head is fixedly connected to the screw and is located on a side of the screw away from the abutment plate.

[0013] The utility model discloses a water jet Roots vacuum pump device. When a low vacuum working condition is required, the bypass valve is opened, the air inlet valve is closed, the Roots pump is stopped, the air outlet valve is closed, and the water jet vacuum pump is operated, so that a passage is formed between the vacuum tank, the bypass valve, the check valve and the water jet vacuum pump to meet the low vacuum working condition requirement. When a high vacuum working condition is required, the bypass valve is closed, the air inlet valve is opened, the Roots pump is operated, the air outlet valve is opened, and the water jet vacuum pump is operated, so that a passage is formed between the vacuum tank, the air inlet valve, the Roots pump, the air inlet valve, the check valve and the water jet vacuum pump to meet the high vacuum working condition requirement. Thus, by starting the water jet vacuum pump and the Roots pump under the high vacuum working condition or by starting only the water jet vacuum pump under the low vacuum working condition, the unit can switch the appropriate scheme according to the requirements of low vacuum or high vacuum to achieve the purpose of energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of a water jet Roots vacuum pump device according to the first embodiment of the utility model.

[0016] Figure 2 It is a schematic structural diagram of a water jet vacuum pump according to the first embodiment of the utility model.

[0017] Figure 3 It is a structural schematic diagram of a fixed ring frame of the first embodiment of the utility model.

[0018] In the figure: 101-vacuum tank, 102-sub-control assembly, 103-first branch pipe, 104-inlet valve, 105-input pipe, 106-Roots pump, 107-output pipe, 108-exhaust valve, 109-bypass valve, 110-second branch pipe, 111-check valve, 112-pump body, 113-external pipe, 114-fixed ring frame, 115-abutment plate, 116-limit rod, 117-limit block, 118-screw, 119-rotating head. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The first embodiment of the present application is:

[0021] See also Figures 1 to 3 ,in Figure 1 It is a structural schematic diagram of a water jet Roots vacuum pump device according to the first embodiment of the utility model. Figure 2 It is a schematic structural diagram of a water jet vacuum pump according to the first embodiment of the utility model. Figure 3 It is a structural schematic diagram of a fixed ring frame of the first embodiment of the utility model.

[0022] The utility model provides a water jet Roots vacuum pump device, comprising a vacuum tank 101 and a sub-control component 102, wherein the sub-control component 102 comprises a first branch pipe 103, an air inlet valve 104, an input pipe 105, a Roots pump 106, an output pipe 107, an air outlet valve 108, a bypass valve 109, a second branch pipe 110, a check valve 111 and a water jet vacuum pump, wherein the water jet vacuum pump comprises a pump body 112, an external pipe 113 and a fixed component, wherein the fixed component comprises a fixed ring frame 114, an abutment plate 115, a connecting component and a moving component, wherein the connecting component comprises a limit rod 116 and a limit block 117, and the moving component comprises a screw 118 and a rotating head 119. The above-mentioned solution solves the problem that the existing device needs to start the water jet vacuum pump and the Roots vacuum pump to operate simultaneously when encountering a condition that does not require such a high vacuum degree during the production process, thereby causing energy waste. It can be understood that the above-mentioned solution can be used in the case where the device is required to meet the production requirements while solving the energy waste.

[0023] In this embodiment, the vacuum tank 101 has a tank body and a base, and the medium required for chemical production can be stored through the vacuum tank 101, thereby meeting the production demand of chemical raw materials through the medium required for chemical production.

[0024] The first branch pipe 103 is connected to the vacuum tank 101 and is located on one side of the vacuum tank 101. The intake valve 104 is connected to the first branch pipe 103 and is located on one side of the first branch pipe 103. The input pipe 105 is connected to the intake valve 104 and is located on one side of the intake valve 104. The Roots pump 106 is connected to the input pipe 105 and is located on one side of the input pipe 105. The output pipe 107 is connected to the Roots pump 106 and is located on a side of the Roots pump 106 away from the input pipe 105. The outlet valve 108 is connected to the output pipe 107 and is located on one side of the output pipe 107. The bypass valve 109 is connected to the first branch pipe 108 and is located on one side of the output pipe 107. 103 is connected and is located at a side of the first branch pipe 103 away from the air inlet valve 104. The second branch pipe 110 is connected to the air outlet valve 108 and the bypass valve 109 respectively. The second branch pipe 110 is located at a side of the air outlet valve 108 close to the bypass valve 109. The check valve 111 is connected to the second branch pipe 110 and is located at one side of the second branch pipe 110. The water jet vacuum pump is arranged on the check valve 111. The first branch pipe 103 has an input port and two output ports. The input port of the first branch pipe 103 is connected to the output end of the vacuum tank 101. The air inlet valve 104 is connected to an output port at one end of the first branch pipe 103. The input pipe 105 is connected to the intake valve 104, the input end of the Roots pump 106 is connected to the input pipe 105, the intake valve 104 can control the vacuum tank 101 to input the medium of the Roots pump 106, the output pipe 107 is connected to the output end of the Roots pump 106, the outlet valve 108 is connected to the output pipe 107, the output of the medium of the Roots pump 106 can be controlled by the outlet valve 108, the bypass valve 109 is connected to the other output port of the first branch pipe 103, the second branch pipe 110 has two input ports and one output port, one input port of the second branch pipe 110 is connected to the bypass valve 109, and the bypass valve 109 is connected to the bypass valve 109. The bypass valve 109 can control the input of the medium in the first branch pipe 103 to the medium in the second branch pipe 110. The other input port of the second branch pipe 110 is connected to the outlet valve 108. The check valve 111 is connected to the output port of the second branch pipe 110. The check valve 111 can prevent the medium or other media from flowing back into the second branch pipe 110. The water jet vacuum pump is arranged on the check valve 111, and the water jet vacuum pump is used for external output, so that when a low vacuum condition is required, the bypass valve 109 is opened, the air inlet valve 104 is closed, the Roots pump 106 is stopped, the outlet valve 108 is closed, and the water jet vacuum pump is operated.A passage is formed between the vacuum tank 101, the bypass valve 109, the check valve 111 and the water jet vacuum pump to meet the requirements of low vacuum working conditions. When high vacuum working conditions are required, the bypass valve 109 is closed, the air intake valve 104 is opened, the Roots pump 106 is operated, the air outlet valve 108 is opened, and the water jet vacuum pump is operated, so that a passage is formed between the vacuum tank 101, the air intake valve 104, the Roots pump 106, the air intake valve 104, the check valve 111 and the water jet vacuum pump to meet the requirements of high vacuum working conditions. Thus, by starting the water jet vacuum pump and the Roots pump 106 under high vacuum working conditions or by starting only the water jet vacuum pump under low vacuum working conditions, the unit can switch to a suitable solution according to the requirements of low vacuum or high vacuum to achieve the purpose of energy saving and consumption reduction.

[0025] Secondly, the pump body 112 is connected to the check valve 111 and is located on one side of the check valve 111; the external pipe 113 is connected to the pump body 112 and is located on one side of the pump body 112; the fixing component is arranged on the pump body 112, the pump body 112 is connected to the check valve 111, and the external pipe 113 is connected to the pump body 112, and the medium input into the check valve 111 can be externally output through the pump body 112 and the external pipe 113, and the fixing component is arranged on the pump body 112, and the external pipe 113 can be better fixed to the pump body 112 through the fixing component, so as to avoid the leakage of the medium caused by the loosening of the connecting pipe between the external pipe 113 and the pump body 112.

[0026] At the same time, the fixed ring frame 114 is fixedly connected to the pump body 112 and is located on one side of the pump body 112; the abutment plate 115 is connected to the fixed ring frame 114 through the connecting component and is located on the side of the fixed ring frame 114 close to the external pipe 113; the connecting component is arranged on the fixed ring frame 114 and connected to the abutment plate 115; the moving component is arranged on the fixed ring frame 114, and the fixed ring frame 114 is welded to the pump body 112, and the connection support of the fixed ring frame 114 is realized through the pump body 112, and the abutment plate 115 is connected to the fixed ring frame 114 through the connecting component. There are two connecting plates 115, and the two abutment plates 115 are connected to the fixed ring frame 114 through the connecting component. The connecting component can connect, support and directional limit the movement of the abutment plates 115. The moving component is arranged on the fixed ring frame 114, so that the abutment plates 115 are abutted and fixed with the outer side of the external tube 113 under the drive of the moving component, so that the external tube 113 is better connected and fixed to the pump body 112, avoiding the leakage of the medium caused by the loosening of the connecting pipe between the external tube 113 and the pump body 112.

[0027] In addition, the limiting rod 116 is slidably connected to the fixed ring frame 114, and is fixedly connected to the abutment plate 115, and is located on the side of the fixed ring frame 114 close to the abutment plate 115; the limiting block 117 is fixedly connected to the limiting rod 116, and is located on one side of the limiting rod 116. There are four limiting rods 116, and the four limiting rods 116 are slidably connected to the fixed ring frame 114, and the fixed ring frame 114 is used to realize the connection support for the sliding of the limiting rod 116. and low rod limiting, the four limiting rods 116 are welded on the corresponding two abutment plates 115, and the movement of the limiting rods 116 can achieve the purpose of connecting support and directional limiting movement of the abutment plates 115, and there are four limiting blocks 117, which are welded on the corresponding four limiting rods 116. The limiting blocks 117 can prevent the limiting rods 116 from falling off the fixed ring frame 114 when sliding on the fixed ring frame 114.

[0028] Finally, the screw 118 is threadedly connected to the fixed ring frame 114 and is located on a side of the fixed ring frame 114 close to the abutment plate 115; the rotating head 119 is fixedly connected to the screw 118 and is located on a side of the screw 118 away from the abutment plate 115. There are two screws 118, and the two screws 118 are threadedly connected to the fixed ring frame 114. There are two rotating heads 119, and the two rotating heads 119 are welded to the screw 118. The screw 118 is rotated by twisting the rotating head 119. Through the rotation of the screw 118 and the action of the thread between the screw 118 and the fixed ring frame 114, the screw 118 can move up and down and engage with the abutment plate 115 when the screw 118 rotates, and then the abutment plate 115 is pushed to abut and clamp the outer side wall of the external tube 113 through the movement of the screw 118.

[0029] When using a water jet Roots vacuum pump device of the present embodiment, when a low vacuum working condition is required, the bypass valve 109 is opened, the air inlet valve 104 is closed, the Roots pump 106 is stopped, the air outlet valve 108 is closed, and the water jet vacuum pump is operated, so that a passage is formed between the vacuum tank 101, the bypass valve 109, the check valve 111 and the water jet vacuum pump to meet the low vacuum working condition requirements; when a high vacuum working condition is required, the bypass valve 109 is closed, the air inlet valve 104 is opened, and the Roots pump 106 is operated. , open the air outlet valve 108, run the water jet vacuum pump, so that a passage is formed between the vacuum tank 101, the air inlet valve 104, the Roots pump 106, the air inlet valve 104, the check valve 111 and the water jet vacuum pump to meet the high vacuum working condition requirements, thereby enabling the unit to switch to a suitable solution according to the requirements of low vacuum or high vacuum to achieve energy saving and consumption reduction by starting the water jet vacuum pump and the Roots pump 106 under high vacuum working conditions or by only starting the water jet vacuum pump under low vacuum working conditions.

[0030] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A water jet Roots vacuum pump device, arranged in a vacuum tank, characterized in that: Including sub-control components, The sub-control component includes a first branch pipe, an air intake valve, an input pipe, a Roots pump, an output pipe, an air outlet valve, a bypass valve, a second branch pipe, a check valve and a water jet vacuum pump. The first branch pipe is connected to the vacuum tank and is located at one side of the vacuum tank. The air intake valve is connected to the first branch pipe and is located at one side of the first branch pipe. The input pipe is connected to the air intake valve and is located at one side of the air intake valve. The Roots pump is connected to the input pipe and is located at one side of the input pipe. The output pipe is connected to the Roots pump and is located at a side of the Roots pump away from the input pipe. The air outlet valve is connected to the output pipe and is located at one side of the output pipe. The bypass valve is connected to the first branch pipe and is located at a side of the first branch pipe away from the air intake valve. The second branch pipe is respectively connected to the air outlet valve and the bypass valve. The second branch pipe is located at a side of the air outlet valve close to the bypass valve. The check valve is connected to the second branch pipe and is located at one side of the second branch pipe. The water jet vacuum pump is arranged on the check valve.

2. The water jet Roots vacuum pump device according to claim 1, characterized in that: The water jet vacuum pump includes a pump body, an external pipe and a fixing member. The pump body is connected to the check valve and is located on one side of the check valve; the external pipe is connected to the pump body and is located on one side of the pump body; the fixing member is arranged on the pump body.

3. The water jet Roots vacuum pump device according to claim 2, characterized in that: The fixed component includes a fixed ring frame, an abutment plate, a connecting component and a moving component. The fixed ring frame is fixedly connected to the pump body and is located on one side of the pump body; the abutment plate is connected to the fixed ring frame through the connecting component and is located on a side of the fixed ring frame close to the external pipe; the connecting component is arranged on the fixed ring frame and connected to the abutment plate; the moving component is arranged on the fixed ring frame.

4. The water jet Roots vacuum pump device according to claim 3, characterized in that: The connecting component includes a limit rod and a limit block. The limit rod is slidably connected to the fixed ring frame and fixedly connected to the abutment plate, and is located on a side of the fixed ring frame close to the abutment plate; the limit block is fixedly connected to the limit rod and is located on one side of the limit rod.

5. The water jet Roots vacuum pump device according to claim 3, characterized in that: The moving component includes a screw and a rotating head. The screw is threadedly connected to the fixed ring frame and is located on a side of the fixed ring frame close to the abutment plate. The rotating head is fixedly connected to the screw and is located on a side of the screw away from the abutment plate.

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