Turbine and liquid ring pump series system

Abstract

The utility model belongs to the technical field of liquid ring pumps, and particularly relates to a turbine and liquid ring pump series system which comprises a turbine and a liquid ring pump, one end of the turbine is connected with a main air inlet through a first air inlet pipeline, and the other end of the turbine is connected with an air inlet of the liquid ring pump through a second air inlet pipeline. An exhaust port of the liquid ring pump is connected with an air inlet of the air-water separator through a third air inlet pipeline, and an exhaust port of the air-water separator is connected with a main exhaust port through an exhaust pipeline; a water outlet of the gas-water separator is communicated with the outside through a water drainage pipeline, a water supply port of the liquid ring pump is connected with external water supplement through a water supply pipeline, a check valve and a pressure gauge are arranged on the second gas inlet pipeline, and the pressure gauge is arranged between the turbine and the check valve. The vacuum pump can achieve high vacuum without cavitation, is more energy-saving, and can replace a roots pump, a steam-jet pump, an atmosphere ejector series liquid ring pump or a two-stage liquid ring pump; the turbine can increase the number of stages without increasing the number of motors, so that the suction rate is increased.

Description

Technical Field

[0001] This invention belongs to the field of liquid ring pump technology, specifically a turbine and liquid ring pump series system. Background Technology

[0002] Currently, high-vacuum liquid ring pump systems consist of two or more liquid ring pumps connected in series, or Roots pumps, steam jet pumps, and atmospheric ejectors connected in series with liquid ring pumps. While these systems can achieve high vacuum, they are often accompanied by cavitation, requiring additional auxiliary equipment to prevent damage to the pump body. The problems are that, with liquid ring pumps connected in series, the overall energy efficiency decreases due to the cumulative energy loss from multiple compression stages; power consumption is high, especially in high-pressure or high-flow scenarios, significantly increasing operating costs; furthermore, Roots vacuum pumps connected in series with liquid ring pumps are relatively inefficient in terms of energy saving, have inflexible material configurations, and poor overall corrosion resistance, making them prone to oil adhesion or jamming during actual operation. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this invention proposes a turbine-liquid ring pump series system, which can improve vacuum level, reduce energy consumption, and increase pumping capacity. The technical problem to be solved by this invention is achieved through the following technical solution:

[0004] A turbine and liquid ring pump series system includes a turbine and a liquid ring pump. One end of the turbine is connected to a main air inlet via a first air inlet pipe, and the other end of the turbine is connected to the air inlet of the liquid ring pump via a second air inlet pipe. The exhaust port of the liquid ring pump is connected to the air inlet of a gas-liquid separator via a third air inlet pipe, and the exhaust port of the gas-liquid separator is connected to the main exhaust port via an exhaust pipe. The drain port of the gas-liquid separator is connected to the outside via a drain pipe, and the water supply port of the liquid ring pump is connected to external water supply via a water supply pipe. A check valve and a pressure gauge are installed on the second air inlet pipe, with the pressure gauge positioned between the turbine and the check valve.

[0005] Furthermore, the turbine is driven by a first motor.

[0006] Furthermore, the liquid ring pump is driven by a second motor.

[0007] Specifically, the liquid ring pump is a liquid ring vacuum pump.

[0008] Specifically, "turbo" refers to a turbo-enlarged unit.

[0009] Specifically, a condenser is installed between the turbine and the check valve.

[0010] This invention achieves a high vacuum without cavitation and is more energy-efficient, replacing Roots pumps, steam jet pumps, atmospheric ejector series liquid ring pumps, or two-stage liquid ring pumps. Compared to Roots vacuum pumps and liquid ring pumps, this invention provides cleaner air, offers flexible material configurations, strong corrosion resistance, and is more energy-efficient. Furthermore, it is less prone to internal oil buildup or jamming. Regarding increasing pumping capacity, the turbine can increase the number of stages without increasing the number of motors. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0012] Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention. Detailed Implementation

[0013] Example 1

[0014] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model, as shown below. Figure 1 As shown, a turbine and liquid ring pump series system includes a turbine 1 and a liquid ring pump 2. One end of the turbine 1 is connected to the main air inlet through a first air inlet pipe 3, and the other end of the turbine 1 is connected to the air inlet of the liquid ring pump 2 through a second air inlet pipe 4. The exhaust port of the liquid ring pump 2 is connected to the air inlet of a gas-water separator 6 through a third air inlet pipe 5. The exhaust port of the gas-water separator 6 is connected to the main exhaust port through an exhaust pipe 7. The drain port of the gas-water separator 6 is connected to the outside through a drain pipe 8. The water supply port of the liquid ring pump 2 is connected to external water supply through a water supply pipe 9. A check valve 10 and a pressure gauge 11 are installed on the second air inlet pipe 4, with the pressure gauge 11 positioned between the turbine 1 and the check valve 10.

[0015] Turbine 1 is driven by a first motor 12, and liquid ring pump 2 is driven by a second motor 13. Liquid ring pump 2 is a liquid ring vacuum pump, and turbine 1 is a turbine booster unit.

[0016] First, water is supplied to the liquid ring vacuum pump until the liquid level reaches the specified height. Then, the liquid ring vacuum pump is started to draw in gas. During gas drawing, the working fluid is discharged into the gas-liquid separator 6 along with the gas. Subsequently, the gas-liquid mixture separates due to inertia and gravity. The gas is discharged along the downstream exhaust pipe 7, while the liquid settles along the tank wall and is discharged from the bottom drain. The water supply pipe 9 continuously supplies working fluid to the liquid ring vacuum pump to maintain the formation of a water ring inside. During the drawing process, the pressure gauge 11 should be monitored. Once the pressure gauge reaches the specified value, the turbine can be started to increase the pumping capacity, ensuring the unit operates at a high vacuum without cavitation.

[0017] Example 2

[0018] Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention, as shown below. Figure 2 As shown, in Embodiment 2, a condenser 14 is installed between turbine 1 and check valve 10, and pressure gauge 11 is installed on the first intake pipe 3. Other settings in Embodiment 2 are the same as in Embodiment 1, and will not be described again here.

[0019] The gas outside the system first passes through turbine 1 and then through condenser 14. The mixture of gas and condensate cooled by condenser 14 can directly enter the liquid ring pump without separation. The gas compressed by the liquid ring pump will be separated into working fluid and gas in gas-water separator 6, and discharged outside the system through drain pipe 8 and exhaust pipe 7 respectively.

[0020] Compared with common units, the second embodiment has advantages such as being less prone to cavitation under high vacuum, being more energy-efficient, having more flexible rotor material selection, strong corrosion resistance, and being less prone to oil contamination or jamming inside. The system gas temperature is lower, and compared with systems with condensers, it can save on condensate tanks and condensate recovery pipelines.

[0021] In summary, this invention achieves a high vacuum without cavitation and is more energy-efficient, making it a viable replacement for Roots pumps, steam jet pumps, atmospheric ejector series liquid ring pumps, or two-stage liquid ring pumps. Compared to Roots vacuum pumps with liquid ring pumps, this invention offers cleaner air, more flexible material configurations, stronger corrosion resistance, and greater energy efficiency. Furthermore, it is less prone to internal oil buildup or jamming. Regarding increasing pumping capacity, the turbine can increase the number of stages without increasing the number of motors, thereby increasing the pumping capacity.

Claims

1. A system of a turbine and a liquid ring pump connected in series, characterized in that, The turbine is connected with the total air inlet through the first air inlet pipeline at one end, and connected with the air inlet of the liquid ring pump through the second air inlet pipeline at the other end; the air outlet of the liquid ring pump is connected with the air inlet of the gas-water separator through the third air inlet pipeline; the air outlet of the gas-water separator is connected with the total air outlet through the air outlet pipeline; the water outlet of the gas-water separator is connected with the outside through the water outlet pipeline; the water supply inlet of the liquid ring pump is connected with the outside water supply through the water supply pipeline; the check valve and the pressure gauge are arranged on the second air inlet pipeline, and the pressure gauge is arranged between the turbine and the check valve.

2. The turbine and liquid ring pump series connection system according to claim 1, characterized in that, The turbine is driven by the first motor.

3. The combined turbine and liquid ring pump system of claim 1, wherein, The liquid ring pump is driven by the second motor.

4. The turbine and liquid ring pump series system according to claim 1, characterized in that, The liquid ring pump is a liquid ring vacuum pump.

5. The turbine and liquid ring pump series system of claim 1, wherein, The turbine is a turbine booster unit.

6. The turbine and liquid ring pump series system of claim 1, wherein, A condenser is arranged between the turbine and the check valve.

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