Gas-liquid separation equipment and gas-liquid separation method

Abstract

The present invention discloses a gas-liquid separation device and a gas-liquid separation method. The gas-liquid separation device includes: a device body and a gas-liquid separation mechanism; the gas-liquid separation mechanism includes a shock-absorbing component, a first water-blocking component, and a first sealing plate; the shock-absorbing component has a first chamber; the first water-blocking component is sleeved on the outside of the shock-absorbing component; a second chamber is formed between the first water-blocking component and the shock-absorbing component; the second water-blocking component is sleeved on the outside of the first water-blocking component; a third chamber is formed between the second water-blocking component and the first water-blocking component; after entering through an air inlet, external gas first enters the first chamber through the first opening, enters the second chamber through an air outlet, and then enters the third chamber through the second and third openings in sequence, and is discharged through the fourth opening and the exhaust port. After passing through the first water-blocking component, the gas can move from bottom to top through the third chamber between the second water-blocking component and the first water-blocking component, thereby helping to improve the gas-liquid separation effect.

Description

Technical Field

[0001] The present invention relates to the field of gas-liquid separation, and further to a gas-liquid separation device and a gas-liquid separation method. Background Art

[0002] A Roots vacuum pump is a device used to create a high vacuum. Its primary function is to expel gas from an area to achieve the desired vacuum level. Inside the pump are two synchronously rotating impellers in opposite directions. By controlling the asynchronous rotation of the impellers, the pump draws in and expel gas. The large gap between the impellers typically causes the pump to vibrate significantly during operation, resulting in high low-frequency noise and a wide frequency band. Therefore, noise reduction equipment is required when using a Roots vacuum pump.

[0003] In addition, the Roots vacuum pump needs to use clean water for cooling during the suction process. The cooling water will be discharged from the vacuum pump through the outlet along with the gas. The gas discharged by the Roots vacuum pump contains a large amount of liquid.

[0004] It should be noted that existing noise reduction equipment used with Roots vacuum pumps generally lacks gas-liquid separation capabilities, causing liquid in the gas to escape into the atmosphere, impacting the environment. Even if some noise reduction equipment incorporates a gas-liquid separation mechanism, improper structural design can result in poor separation performance. Summary of the Invention

[0005] In response to the above technical problems, the purpose of the present invention is to provide a gas-liquid separation device and a gas-liquid separation method, in which the gas after passing through the first water-blocking component can move from bottom to top through the third chamber between the second water-blocking component and the first water-blocking component, which helps to improve the gas-liquid separation effect.

[0006] In order to achieve the above object, the present invention provides a gas-liquid separation device, comprising:

[0007] The device body has a mounting cavity, an air inlet, and an exhaust port, wherein one end of the device body is a high end portion and the other end is a low end portion, the air inlet is located at the low end portion, and the exhaust port is located at the high end portion;

[0008] A gas-liquid separation mechanism, the gas-liquid separation mechanism comprising a shock-absorbing member, a first water-blocking member, and a first sealing plate, the shock-absorbing member having a first chamber, a first opening communicating with the first chamber at the bottom of the shock-absorbing member, and a plurality of air outlet holes communicating with the first chamber distributed on the sidewall of the shock-absorbing member; the first water-blocking member is sleeved on the outer side of the shock-absorbing member, a second chamber is formed between the first water-blocking member and the shock-absorbing member, a second opening communicating with the second chamber is formed between the bottom of the first water-blocking member and the bottom of the shock-absorbing member; the first sealing plate is disposed on the top of the shock-absorbing member and the first water-blocking member and seals the top of the first chamber with the top of the second chamber;

[0009] The gas-liquid separation mechanism further includes a second water-blocking member, the second water-blocking member being sleeved on the outside of the first water-blocking member, a third chamber being formed between the second water-blocking member and the first water-blocking member, a third opening being defined between the bottom of the second water-blocking member and the bottom of the first water-blocking member, and a fourth opening being defined between the top of the second water-blocking member and the top of the first water-blocking member;

[0010] After entering through the air inlet, the external air first enters the first chamber through the first opening, enters the second chamber through the air outlet, enters the third chamber after passing through the second opening and the third opening in sequence, and is finally discharged through the fourth opening and the exhaust port.

[0011] In some preferred embodiments, the gas-liquid separation equipment further includes a noise reduction mechanism, which includes a second sealing plate. A fourth chamber is formed between the second water-blocking component and the equipment body, and a plurality of connecting holes connecting the third chamber and the fourth chamber are distributed on the second water-blocking component; the second sealing plate is arranged on the top of the second water-blocking component and seals the top of the fourth chamber.

[0012] In some preferred embodiments, the gas-liquid separation mechanism further includes a first connecting member, which is disposed in the second chamber and fixedly connects the shock-absorbing component and the first water-blocking component.

[0013] In some preferred embodiments, the noise reduction mechanism further includes a second connecting member and a third connecting member, the second connecting member and the third connecting member are respectively arranged in the third chamber, the second connecting member fixes the top of the first water-blocking component and the top of the second water-blocking component; the third connecting member fixes the bottom of the first water-blocking component and the bottom of the second water-blocking component.

[0014] In some preferred embodiments, the noise reduction mechanism further includes a partition, which is arranged in the fourth chamber and fixedly connects the bottom of the second water-blocking component to the equipment body, and a plurality of drainage holes are provided on the partition.

[0015] In some preferred embodiments, the shock-absorbing member, the first water-blocking member, and the second water-blocking member are all annular in shape, and are coaxially arranged with the device body.

[0016] In some preferred embodiments, the first sealing plate and the second sealing plate divide the mounting cavity into a first sub-mounting cavity and a second sub-mounting cavity in the vertical direction, the gas-liquid separation mechanism is provided in the second sub-mounting cavity, and the third chamber is connected to the first sub-mounting cavity through the fourth opening;

[0017] The noise reduction mechanism further includes a second noise reduction component, which includes a plurality of noise reduction tubes arranged in the first sub-mounting cavity and coaxially arranged with the equipment body. The noise reduction tubes are tubular structures with upper and lower openings, and the side walls have a plurality of noise reduction holes. The gas discharged from the fourth opening passes through the plurality of noise reduction tubes and is discharged through the exhaust port.

[0018] In some preferred embodiments, the second noise reduction component further includes a fixed partition having fixed through-holes corresponding to the plurality of noise reduction tubes, and the plurality of noise reduction tubes are fixedly installed in the plurality of fixed through-holes.

[0019] In some preferred embodiments, the number of the fixed baffles is two, one of the fixed baffles is located at the top of the plurality of noise reduction tubes, and the other of the fixed baffles is located at the bottom of the plurality of noise reduction tubes.

[0020] In some preferred embodiments, the second noise reduction component further includes a sound absorbing material layer disposed in the gaps between the plurality of noise reduction tubes.

[0021] In some preferred embodiments, the noise reduction tube array includes, from inside to outside, an inner perforated tube layer, a glass fiber cloth layer, a wire mesh layer, and a bundling layer.

[0022] In some preferred embodiments, the gas-liquid separation equipment further includes a liquid recovery mechanism, which has a liquid collection tank located below the gas-liquid separation mechanism and a liquid discharge outlet connected to the liquid collection tank. The liquid gathered by the gas-liquid separation mechanism can enter the liquid collection tank under the action of gravity and be discharged through the liquid discharge outlet.

[0023] In some preferred embodiments, the liquid recovery mechanism includes a holding trough body and a drain pipe, the holding trough body surrounds the liquid collection trough to form the liquid collection trough, the surface of the holding trough body at the bottom of the liquid collection trough is an arc-shaped surface with one end higher than the other end, an open end of the drain pipe is connected to the bottom of the arc-shaped surface and communicates with the liquid collection trough, and the other end of the drain pipe has the liquid discharge outlet.

[0024] In some preferred embodiments, the top of the device body is provided with an exhaust component, and the internal chamber of the exhaust component gradually shrinks from bottom to top to form the exhaust port.

[0025] According to another aspect of the present application, the present application further provides a gas-liquid separation method using any of the gas-liquid separation devices described above, comprising:

[0026] guiding the gas to be treated from the gas inlet into the first chamber of the shock absorbing member;

[0027] The gas in the first chamber is guided to change its direction of movement and enter the second chamber between the first water-blocking member and the shock-absorbing member through the plurality of gas outlet holes on the side wall of the shock-absorbing member;

[0028] The gas in the second chamber is guided into the third chamber through the second opening below the second chamber and the third opening below the third chamber between the second water blocking member and the first water blocking member, and is discharged through the fourth opening at the top of the third chamber.

[0029] In some preferred embodiments, the gas-liquid separation method further comprises:

[0030] The gas discharged from the fourth opening is guided to pass through a second noise reduction component arranged above the gas-liquid separation mechanism and then be discharged through the exhaust port, wherein the second noise reduction component includes a plurality of noise reduction tubes, and the noise reduction tubes are a tubular structure with upper and lower openings and a plurality of noise reduction holes on the side walls. The gas discharged from the fourth opening passes through the plurality of noise reduction tubes and then is discharged through the exhaust port.

[0031] Beneficial effects:

[0032] 1. In the gas-liquid separation equipment provided in the present application, the gas enters the first chamber from the air inlet, undergoes a gas-liquid separation when passing through the air outlet into the second chamber, and then moves downward to the second opening, and then moves upward from the third opening to the fourth opening for discharge. The upward movement in the third chamber helps the liquid fall under the action of gravity to perform secondary gas-liquid separation, thereby improving the gas-liquid separation effect.

[0033] 2. In the gas-liquid separation equipment provided in the present application, a fourth chamber is formed between the second water-blocking component and the equipment body, and a number of connecting holes connecting the third chamber and the fourth chamber are distributed on the second water-blocking component, which helps to separate the liquid during the movement of gas from bottom to top and can achieve the effect of resonance silencing.

[0034] 3. The noise reduction mechanism and the gas-liquid separation mechanism of the gas-liquid separation equipment provided in this application are arranged adjacent to each other, which can reduce the axial size of the equipment. After passing through the gas-liquid separation mechanism, the gas can be guided to the noise reduction mechanism, which can enhance the noise reduction effect and achieve more accurate and effective noise reduction.

[0035] 4. The gas-liquid separation equipment provided in this application has a shock-absorbing component vertically arranged in the main body of the equipment, and the gas enters from the bottom of the shock-absorbing component. Under relatively severe abnormal working conditions (circulating soft water micro-crystallization and micro-scaling), it can delay blockage, extend the life of the equipment, and reduce costs.

[0036] 5. The gas-liquid separation equipment provided in this application includes a low-frequency resonant silencer component and a resistive tubular silencer component, which can comprehensively eliminate low, medium and high frequency noises in the entire wide frequency band, thereby achieving a better silencer effect.

[0037] 6. In the gas-liquid separation equipment provided in the present application, the gas enters the first chamber of the shock-absorbing component from a first opening with a larger size, and is discharged through a number of smaller-sized air outlet holes. The exhaust interface suddenly changes (a large air inlet becomes multiple small holes for exhaust), so that the shock-absorbing component also has a resistance and silencer effect, which can effectively reduce the low-frequency noise of the airflow.

[0038] 7. The gas-liquid separation equipment provided in this application includes a liquid recovery mechanism that can effectively recover the coolant and reuse it, which is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0040] Figure 1A This is a schematic diagram of the main structure of the gas-liquid separation device according to a preferred embodiment of the present invention;

[0041] Figure 1B yes Figure 1A Schematic diagram of the cross-section structure along the AA line;

[0042] Figure 2A is a side structural schematic diagram of a gas-liquid separation device according to a preferred embodiment of the present invention;

[0043] Figure 2B yes Figure 2A Schematic diagram of the cross-sectional structure along the middle BB line;

[0044] Figure 3A The gas-liquid separation device of the preferred embodiment of the present invention has a gas-liquid separation mechanism. Figure 2B Enlarged view of the cross-sectional view;

[0045] Figure 3B 1 is a schematic top view of the structure of the gas-liquid separation mechanism of the gas-liquid separation device of the preferred embodiment of the present invention;

[0046] Figure 4A The second water blocking member of the gas-liquid separation device of the preferred embodiment of the present invention is Figure 2B Enlarged view of the cross-sectional view;

[0047] Figure 4B 1 is a schematic top view of the structure of the second water blocking member of the gas-liquid separation device according to a preferred embodiment of the present invention;

[0048] Figure 5A The second noise reduction component of the gas-liquid separation device of the preferred embodiment of the present invention is Figure 2B Enlarged view of the cross-sectional view;

[0049] Figure 5B 1 is a schematic top view of the second noise reduction component of the gas-liquid separation device according to a preferred embodiment of the present invention;

[0050] Figure 5C Schematic diagram of the cross-sectional structure of the noise reduction tube array of the gas-liquid separation equipment according to the preferred embodiment of the present invention;

[0051] Figure 6A 1 is a side structural diagram of a liquid recovery mechanism of a gas-liquid separation device according to a preferred embodiment of the present invention;

[0052] Figure 6B 1 is a schematic top view of the liquid recovery mechanism of the gas-liquid separation device according to a preferred embodiment of the present invention;

[0053] Figure 7A The air inlet pipe of the gas-liquid separation device of the preferred embodiment of the present invention is Figure 1B Enlarged view of the cross-sectional view;

[0054] Figure 7B 1 is a schematic top view of the structure of the air inlet pipe of the gas-liquid separation device according to a preferred embodiment of the present invention;

[0055] Figure 8 4 is a flow chart of a gas-liquid separation method according to a preferred embodiment of the present invention.

[0056] Reference numerals

[0057] Device body 10, mounting cavity 11, first sub-mounting cavity 111, second sub-mounting cavity 112, air inlet 12, exhaust port 13, high end portion 141, low end portion 142, exhaust member 15, second connecting flange 151, lifting lug 152, gas-liquid separation mechanism 20, shock-absorbing member 21, first chamber 210, first opening 2101, air outlet 2102, first water-blocking member 22, second chamber 220, second opening 2202, first sealing plate 23, first connecting member 241, second connecting member 242, third connecting member 243, noise reduction mechanism 30, second water-blocking member 31, second sealing plate 32, third chamber 310, fourth chamber 410, connecting hole 31 01, third opening 3102, fourth opening 3103, partition 33, second noise reduction component 34, noise reduction tube array 341, inner perforated tube layer 3411, fiberglass cloth layer 3412, wire mesh layer 3413, bundling layer 3414, fixed partition 342, fixed perforation 3420, sound-absorbing material layer 343, liquid recovery mechanism 40, liquid collection tank 41, liquid discharge port 42, holding tank body 43, drain pipe 44, first downpipe 441, second downpipe 442, connecting elbow 443, drain pipe support 45, horizontal ring plate 461, vertical ring plate 462, reinforcing rib 463, air intake pipe 50, air intake horizontal pipe 51, air intake elbow 52, first connecting flange 53. DETAILED DESCRIPTION

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0059] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0060] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0061] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention.

[0062] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0063] refer to Figures 1A to 7B The present application provides a gas-liquid separation device, including: a device body 10, a gas-liquid separation mechanism 20 and a noise reduction mechanism 30.

[0064] refer to Figure 1B and Figure 2B Specifically, the device body 10 has a mounting cavity 11, an air inlet 12, and an exhaust port 13. One end of the device body 10 is a high end portion 141, and the other end is a low end portion 142. The air inlet 12 is located at the low end portion 142, and the exhaust port 13 is located at the high end portion 141. The device body 10 can also be described as a shell, whose main function is to provide an installation space for the gas-liquid separation mechanism 20 and the noise reduction mechanism 30 to separate them from the external environment. The device body 10 is usually placed vertically during use, and therefore has the high end portion 141 located at a relatively high position and the low end portion 142 located at a relatively low position. It is understood that in some variant embodiments, the placement of the device body 10 can be adjusted according to actual use requirements, such as horizontal placement or inverted placement. The relative positions of the high end portion 141 and the low end portion 142 may change. Therefore, the exemplary description of the high end portion 141 and the low end portion 142 should not constitute a limitation of this application.

[0065] The gas-liquid separation device provided in this application is preferably suitable for use with a Roots vacuum pump to achieve the purpose of reducing noise and recovering liquid. When in use, the gas-liquid separation device provided in this application can be installed near one side of the Roots vacuum pump, and the gas generated by the operation of the Roots vacuum pump can enter the installation cavity 11 through the air inlet 12, and be discharged through the exhaust port 13 after being processed by the gas-liquid separation mechanism 20 and the noise reduction mechanism 30. It is understandable that the gas-liquid separation device provided in this application can also be applied to other equipment with noise reduction and / or liquid recovery requirements, for example but not limited to screw vacuum pumps, water ring vacuum pumps, etc.

[0066] refer to Figure 1B 、 Figure 2B as well as Figure 3A The gas-liquid separation mechanism 20 includes a shock-absorbing member 21, a first water-blocking member 22, and a first sealing plate 23. The shock-absorbing member 21 has a first chamber 210. The bottom of the shock-absorbing member 21 has a first opening 2101 that communicates with the first chamber 210. The sidewall of the shock-absorbing member 21 is distributed with a plurality of air outlet holes 2102 that communicate with the first chamber 210. The first opening 2101 is connected to the air inlet 12. External air entering through the air inlet 12 can enter the first chamber 210 through the first opening 2101 and be discharged through the air outlet holes 2102 on the sidewall of the shock-absorbing member 21.

[0067] Preferably, the shock-absorbing member 21 is a shock-absorbing perforated tube. The size of the first opening 2101 is significantly larger than the size of the air outlet 2102, and the number and size of the multiple air outlet holes 2102 on the sidewall of the shock-absorbing member 21 match the size of the first opening 2101. During operation, gas can enter the first chamber 210 through the first opening 2101 at the bottom of the shock-absorbing member 21 and exit through the multiple air outlet holes 2102 on the sidewall. This changes the direction of gas flow, preventing excessive kinetic energy from damaging the device body. Furthermore, gas enters the first chamber 210 through the larger first opening 2101 and exits through the multiple smaller air outlet holes 2102, creating a sudden change in the exhaust interface (from a large air inlet to multiple smaller exhaust holes). Therefore, the shock-absorbing member 21 also provides a resistant sound-absorbing effect, effectively reducing low-frequency noise from the airflow. It should be pointed out that in the present application, the shock-absorbing component 21 is vertically arranged in the equipment body 10, and the gas enters from the bottom of the shock-absorbing component 21. Under relatively severe abnormal working conditions (circulating soft water micro-crystallization and micro-scaling), it can delay blockage, extend the life of the equipment, and reduce costs.

[0068] refer to Figure 3A and Figure 3BFurthermore, the first water-blocking member 22 is sleeved on the outside of the shock-absorbing member 21, forming a second chamber 220 between the first water-blocking member 22 and the shock-absorbing member 21. A second opening 2202 communicating with the second chamber 220 is formed between the bottom of the first water-blocking member 22 and the bottom of the shock-absorbing member 21. Preferably, the first water-blocking member 22 is a water-blocking circular tube sleeved on the outside of the shock-absorbing member 21. During operation, the first water-blocking member 22 can restrict the flow of gas discharged from the plurality of gas outlets 2102, thereby causing liquid in the gas to adhere to the first water-blocking member 22, while the gas leaves the second chamber 220 through the second opening 2202, thereby achieving a gas-liquid separation effect.

[0069] Preferably, the shock-absorbing member 21 and the first water-blocking member 22 are both in the shape of circular conduits, and are coaxially arranged with the device body 10. In some variations, the outer shapes of the shock-absorbing member 21, the first water-blocking member 22, and the device body 10 may be implemented as other types of contours, such as, but not limited to, square prisms, elliptical columns, etc., and the shapes and contours of the shock-absorbing member 21, the first water-blocking member 22, and the device body 10 should not constitute a limitation to the present application.

[0070] refer to Figure 3A , the first sealing plate 23 is arranged on the top of the shock-absorbing component 21 and the first water-blocking component 22 and seals the top of the first chamber 210 and the top of the second chamber 220. Preferably, the first sealing plate 23 is a sealing plate made of steel. It can be understood that since the first sealing plate 23 seals the top of the first chamber 210, the gas in the first chamber 210 can only be discharged from the air outlet 2102 on the side wall of the shock-absorbing component 21. Similarly, since the first sealing plate 23 seals the top of the second chamber 220, the gas entering the second chamber 220 can only be discharged through the second opening 2202 located at the bottom of the second chamber 220. It should be pointed out that when the gas in the second chamber 220 contacts the first sealing plate 23, the liquid in the gas will also gather on the first sealing plate 23, achieving a liquid removal effect similar to that of the first water-blocking component 22.

[0071] refer to Figure 1B 、 Figure 2B as well as Figure 4AThe gas-liquid separation mechanism 20 further includes a second water-blocking member 31. The noise reduction mechanism 30 includes a second sealing plate 32. The second water-blocking member 31 is sleeved onto the outside of the first water-blocking member 22. A third chamber 310 is formed between the second water-blocking member 31 and the first water-blocking member 22, and a fourth chamber 410 is formed between the second water-blocking member 31 and the device body 10. A third opening 3102 is defined between the bottom of the second water-blocking member 31 and the bottom of the first water-blocking member 22, and a fourth opening 3103 is defined between the top of the second water-blocking member 31 and the top of the first water-blocking member 22. Within the second chamber 220, gas moves from top to bottom to the second opening 2202. Within the third chamber 310, gas moves from the third opening 3102 at the bottom to the fourth opening 3103 at the top, that is, from bottom to top, which facilitates the liquid's fall under the action of gravity, leading to gas-liquid separation.

[0072] Preferably, the second water-blocking member 31 is provided with a plurality of connecting holes 3101 connecting the third chamber 310 and the fourth chamber 410. The second sealing plate 32 is disposed on the top of the second water-blocking member 31 and seals the top of the fourth chamber 410. As the gas in the third chamber 310 passes through the connecting holes 3101, some of the gas will flow from the third chamber 310 into the fourth chamber 410, or vice versa. This allows gas-liquid separation as the gas passes through the connecting holes 3101, thereby improving the gas-liquid separation effect.

[0073] Preferably, the second water-blocking member 31 is implemented as a resonant muffler and is coaxially arranged with the device body 10, the first water-blocking member 22, and the shock-absorbing member 21. The device body 10 is disposed outside the second water-blocking member 31, that is, the second water-blocking member 31 is located within a resonant cavity formed by the device body 10. The porosity of the connecting hole 3101 provided in the sidewall of the second water-blocking member 31 is designed to match the volume of the resonant cavity formed by the device body 10, the thickness of the device body 10 and the second water-blocking member 31, the size of the opening, and the resonant frequency.

[0074] The second water-blocking member 31 of the gas-liquid separation device provided herein is positioned adjacent to the gas-liquid separation mechanism 20, thereby reducing the axial dimensions of the device, lowering its height and volume, and achieving greater economic efficiency. In this application, the second water-blocking member 31, positioned adjacent to the gas-liquid separation mechanism 20, functions as a low-frequency noise reduction mechanism. After passing through the gas-liquid separation mechanism 20, the gas is directed to the second water-blocking member 31, enhancing the noise reduction effect and achieving more precise and effective silencing.

[0075] It should be noted that according to noise standards, noise within the frequency range of 20Hz to 400Hz can be defined as low-frequency noise, noise within the frequency range of approximately 400Hz to 1000Hz can be defined as medium-frequency noise, and noise within the frequency range of 1000Hz to 20,000Hz can be defined as high-frequency noise. In this application, the second water-blocking member 31 is implemented as a low-frequency muffler component, primarily used to eliminate noise within the frequency range of 20Hz to 400Hz. In some variations, the second water-blocking member 31 can also be implemented as a medium-frequency muffler component or a high-frequency muffler component.

[0076] Specifically, the resonant frequency of the second water-blocking member 31 is specifically designed based on the principle of resonance silencing and the frequency characteristics of gas noise. Near the resonant frequency, the acoustic impedance at the pipe connection is very low. When sound waves propagate along the pipe and reach the second water-blocking member 31, the acoustic impedance mismatch causes most of the sound energy to be reflected back toward the sound source. Some of the sound energy is converted into heat and absorbed by the frictional damping of the resonant system, leaving only a small amount of sound energy to continue propagating. Thus, the resonant silencing effect is achieved.

[0077] refer to Figure 1B and Figure 2B The flow path of external gas in the gas-liquid separation device provided in this application is as follows: after the external gas enters through the air inlet 12, it first enters the first chamber 210 through the first opening 2101, enters the second chamber 220 through the air outlet 2102, and then enters the third chamber 310 after passing through the second opening 2202 and the third opening 3102 in turn, and finally is discharged through the fourth opening 3103 and the exhaust port 13.

[0078] refer to Figure 3A Furthermore, the gas-liquid separation mechanism 20 further includes a first connecting member 241, which is disposed in the second chamber 220 and fixedly connects the shock-absorbing member 21 and the first water-blocking member 22. Preferably, the first connecting member 241 is implemented as a connecting steel plate, one end of which is fixedly connected to the shock-absorbing member 21, and the other end of which is fixedly connected to the first water-blocking member 22. Figure 3B, the first connecting member 241 is implemented as a plurality of members, which are spaced apart and distributed at different positions within the second chamber 220. Furthermore, since the tops of the shock-absorbing member 21 and the first water-blocking member 22 are both fixedly connected to the first sealing plate 23, the first sealing plate 23 can, to a certain extent, play the role of fixedly connecting the shock-absorbing member 21 and the first water-blocking member 22. Therefore, the first connecting member 241 is disposed within the second chamber 220 as close as possible to the second opening 2202 to better securely connect the shock-absorbing member 21 and the first water-blocking member 22.

[0079] refer to Figure 1B and Figure 2B The noise reduction mechanism 30 further includes a second connecting member 242 and a third connecting member 243. The second connecting member 242 and the third connecting member 243 are respectively disposed within the third chamber 310. The second connecting member 242 fixedly connects the top of the first water-blocking member 22 and the top of the second water-blocking member 31. That is, one end of the second connecting member 242 is fixedly connected to the first water-blocking member 22, and the other end is fixedly connected to the second water-blocking member 31. The third connecting member 243 fixedly connects the bottom of the first water-blocking member 22 and the bottom of the second water-blocking member 31. That is, one end of the third connecting member 243 is fixedly connected to the first water-blocking member 22, and the other end is fixedly connected to the second water-blocking member 31. Preferably, the second connecting member 242 and the third connecting member 243 are both implemented as connecting steel plates. The number of the second connecting member 242 and the third connecting member 243 is plural and distributed circumferentially at different positions within the third chamber 310.

[0080] refer to Figure 4A The noise reduction mechanism 30 further includes a partition 33, which is disposed in the fourth chamber 410 and securely connects the bottom of the second water-blocking member 31 to the device body 10. The partition 33 is provided with a plurality of drainage holes. When gas flows through the third chamber 310, due to the plurality of connecting holes 3101 formed on the sidewall of the second water-blocking member 31, a small amount of gas within the third chamber 310 will pass through the connecting holes 3101 and enter the fourth chamber 410. The partition 33 can reduce gas escape from the fourth chamber 410, and the drainage holes can guide the discharge of liquid collected within the fourth chamber 410.

[0081] Preferably, the shock absorbing member 21 , the first water blocking member 22 and the second water blocking member 31 are all annular tubular structures, and are coaxially arranged with the device body 10 .

[0082] refer to Figure 1B and Figure 2B The first sealing plate 23 and the second sealing plate 32 separate the mounting cavity 11 into a first sub-mounting cavity 111 and a second sub-mounting cavity 112 in the upper and lower directions. The gas-liquid separation mechanism 20 and the second water-blocking member 31 are arranged in the second sub-mounting cavity 112, and the third chamber 310 and the first sub-mounting cavity 111 are connected through the fourth opening 3103.

[0083] refer to Figure 1B 、 Figure 2B 、 Figure 5A 、 Figure 5B as well as Figure 5C The noise reduction mechanism 30 further includes a second noise reduction component 34, which includes a plurality of noise reduction tubes 341 arranged in the first sub-mounting cavity 111 and coaxially arranged with the device body 10. The noise reduction tubes 341 are tubular structures with upper and lower openings, and the side walls have a plurality of noise reduction holes. The gas discharged from the fourth opening 3103 passes through the plurality of noise reduction tubes 341 and is discharged through the exhaust port 13.

[0084] Preferably, the second noise reduction member 34 is implemented as a silencer tube array capable of simultaneously eliminating mid-frequency noise and high-frequency noise. A plurality of the noise reduction tube arrays 341 are evenly distributed in the first sub-mounting cavity 111 and are coaxially and vertically installed in the first sub-mounting cavity 111 with the device body 10.

[0085] refer to Figure 5CThe noise reduction tube array 341 includes, from the inside to the outside, an inner perforated tube layer 3411, a fiberglass cloth layer 3412, a wire mesh layer 3413, and a bundling layer 3414. The inner perforated tube layer 3411 is located at the innermost layer and surrounds the inner perforated tube layer 3411 to form an airflow channel. The fiberglass cloth layer 3412 is wrapped around the outer side of the inner perforated tube layer 3411, and the inner perforated tube layer 3411 can provide support for the fiberglass cloth layer 3412. The fiberglass cloth layer 3412 is preferably made of alkali-free fiberglass cloth. The wire mesh layer 3413 is wrapped around the outer periphery of the fiberglass cloth layer 3412 to increase the structural strength of the fiberglass cloth layer 3412 fixed to the inner perforated tube layer 3411. Preferably, the wire mesh layer 3413 is a stainless steel wire mesh. The binding layer 3414 is wrapped around the outside of the wire mesh layer 3413 to prevent the fiberglass cloth layer 3412 and the wire mesh layer 3413 from loosening. Preferably, the binding layer 3414 is made of stainless steel binding wire. It is understood that the materials of the fiberglass cloth layer 3412, the wire mesh layer 3413, and the binding layer 3414 can be adjusted based on actual usage needs and are not limited to the materials listed in this application.

[0086] refer to Figure 1B The second noise reduction component 34 further includes a fixed partition 342 having fixed through-holes 3420 corresponding to the plurality of noise reduction tubes 341. The plurality of noise reduction tubes 341 are fixedly mounted in the corresponding fixed through-holes 3420. The fixed partition 342 secures the plurality of noise reduction tubes 341 to form a whole, maintaining the relative positions of the plurality of noise reduction tubes 341. This improves the stability of the plurality of noise reduction tubes 341 and facilitates their installation in the first sub-mounting cavity 111.

[0087] Preferably, there are two fixed baffles 342, one located at the top of the noise reduction tubes 341, and one located at the bottom of the noise reduction tubes 341. The two fixed baffles 342 are spaced a certain distance apart and distributed at different positions on the noise reduction tubes 341, thereby improving the fixing effect on the noise reduction tubes 341. It is understood that in some alternative solutions, the number of fixed baffles 342 can be three or more, and the specific number of fixed baffles 342 should not constitute a limitation of the present application.

[0088] refer to Figure 5AThe second noise reduction component 34 further includes a sound-absorbing material layer 343 disposed in the spaces between the plurality of noise reduction tubes 341. Preferably, the sound-absorbing material layer 343 comprises a sound-absorbing material, such as rock wool, glass fiber wool, or sponge, having a certain density and sound-absorbing properties (with interconnected micropores). While attenuating the sound, the sound-absorbing material can also micro-absorb residual liquid in the mixed gas, preventing the liquid from being ejected from the exhaust port 13.

[0089] refer to Figure 1B 、 Figure 2B as well as Figure 6A The gas-liquid separation device further includes a liquid recovery mechanism 40, which includes a liquid collection tank 41 located below the gas-liquid separation mechanism 20 and a liquid discharge port 42 connected to the liquid collection tank 41. The liquid collected by the gas-liquid separation mechanism 20 can enter the liquid collection tank 41 under the action of gravity and be discharged through the liquid discharge port 42. Specifically, because the liquid collection tank 41 is located below the gas-liquid separation mechanism 20, the liquid collected in the first water-blocking member 22, the first sealing plate 23, and the partition plate 33 can enter the liquid collection tank 41 under the action of gravity and be discharged through the liquid discharge port 42, thereby achieving a liquid recovery effect.

[0090] It should be noted that, in view of the technical solution that requires a large amount of clean water for cooling during the operation of the Roots vacuum pump, the liquid recovered by the liquid recovery mechanism 40 in this application is primarily water in the gas. When the gas-liquid separation mechanism provided in this application is used in conjunction with other types of vacuum pumps or equipment, the liquid recovered by the liquid recovery mechanism 40 can also be other types of liquid, and the specific type of liquid recovered by the liquid recovery mechanism 40 should not constitute a limitation on this application.

[0091] Specifically, the liquid recovery mechanism 40 includes a holding tank body 43 and a drain pipe 44. The holding tank body 43 surrounds the liquid collection tank 41. The surface of the holding tank body 43 at the bottom of the liquid collection tank 41 has an arc-shaped surface with one end higher than the other end. An open end of the drain pipe 44 is connected to the bottom of the arc-shaped surface and communicates with the liquid collection tank 41. The other end of the drain pipe 44 has the liquid discharge port 42.

[0092] refer to Figure 6AThe drainage pipe 44 includes a first downpipe 441, a second downpipe 442 and a connecting elbow 443. The first downpipe 441 is vertically arranged below the containing tank body 43, and the second downpipe 442 is arranged below the containing tank body 43 at a certain angle to the first downpipe 441. One end of the connecting elbow 443 is connected to the first downpipe 441, and the other end is connected to the second downpipe 442.

[0093] The liquid recovery mechanism 40 also includes a drain pipe support 45, and one end of the second downpipe 442 away from the connecting elbow 443 passes through the drain pipe support 45 and extends to the outside of the equipment body 10. The drain pipe support 45 can provide support for the second downpipe 442 to improve the structural strength of the drain pipe 44.

[0094] The liquid recovery mechanism 40 includes a horizontal ring plate 461 and a vertical ring plate 462. The horizontal ring plate 461 is located at the bottom of the vertical ring plate 462. The liquid recovery mechanism 40 also includes reinforcing ribs 463 located at the connection between the horizontal ring plate 461 and the vertical ring plate 462. The reinforcing ribs 463 can improve the stability of the connection between the horizontal ring plate 461 and the vertical ring plate 462. Preferably, the number of the reinforcing ribs 463 is implemented as a plurality and distributed at different positions on the bottom of the vertical ring plate 462. The vertical ring plate 462 can provide support for the holding tank 43 and can be connected to the device body 10.

[0095] refer to Figure 1B 、 Figure 2B 、 Figure 7A as well as Figure 7B The gas-liquid separation device further includes an air inlet pipe 50. The air inlet pipe 50 is installed in the device body 10. One end of the air inlet pipe 50 is located in the installation cavity 11 and is connected to the shock-absorbing member 21. The other end of the air inlet pipe 50 is located outside the device body 10 and forms the air inlet 12. Specifically, the air inlet pipe 50 includes an air inlet horizontal pipe 51, an air inlet bend 52, and a first connecting flange 53. There is a preset angle between the air inlet horizontal pipe 51 and the shock-absorbing member 21. Preferably, the air inlet horizontal pipe 51 is arranged horizontally. One end of the air inlet bend 52 is connected to the shock-absorbing member 21, and the other end is connected to the air inlet horizontal pipe 51. External gas enters the air inlet horizontal pipe 51 horizontally. The air inlet bend 52 can change the flow direction of the gas so that the gas moves vertically into the shock-absorbing member 21. The first connecting flange 53 can be connected to peripheral equipment. The first connecting flange 53 can be implemented as a flange.

[0096] refer to Figures 1A to 2BThe top of the device body 10 has an exhaust member 15. The internal chamber of the exhaust member 15 gradually shrinks from bottom to top to form the exhaust port 13. The exhaust member 15 is provided with a second connecting flange 151 at the position where the exhaust port 13 is formed. The second connecting flange 151 is suitable for connecting to peripheral equipment. The second connecting flange 151 is preferably implemented as a flange.

[0097] refer to Figure 1A and Figure 2A The gas-liquid separation device further includes a high end portion 141 provided on the device body 10 and provided with a lifting lug 152 . The number of the lifting lugs 152 is preferably implemented as more than two and is evenly distributed around the device body 10 .

[0098] refer to Figure 8 According to another aspect of the present application, the present application further provides a gas-liquid separation method using the gas-liquid separation device provided in the above embodiment, comprising:

[0099] Step 101: guiding the gas to be treated from the gas inlet 12 into the first chamber 210 of the shock absorbing component 21;

[0100] Step 102 : Using the plurality of air outlet holes 2102 on the side wall of the shock absorbing member 21 , guide the gas in the first chamber 210 to change its direction of movement and enter the second chamber 220 between the first water blocking member 22 and the shock absorbing member 21 ;

[0101] Step 103: The gas in the second chamber 220 is guided into the third chamber 310 through the second opening 2202 below the second chamber 220 and the third opening 3102 below the third chamber 310 between the second water blocking member 31 and the first water blocking member 22, and is discharged through the fourth opening 3103 at the top of the third chamber 310.

[0102] In the gas-liquid separation method provided in the present application, since the shock-absorbing component 21, the first water-blocking component 22 and the second water-blocking component 31 are arranged adjacent to each other, the gas is guided to the second water-blocking component 31 after passing through the shock-absorbing component 21 and the first water-blocking component 22, which can achieve the dual effects of liquid separation and noise reduction.

[0103] Furthermore, the gas-liquid separation method further comprises:

[0104] Step 104: Guide the gas discharged from the fourth opening 3103 to pass through a second noise reduction component 34 arranged above the gas-liquid separation mechanism 20 and then be discharged through the exhaust port 13, wherein the second noise reduction component 34 includes a plurality of noise reduction tubes 341, and the noise reduction tubes 341 are tubular structures with upper and lower openings, and the side walls have a plurality of noise reduction holes. The gas discharged from the fourth opening 3103 passes through the plurality of noise reduction tubes 341 and then is discharged through the exhaust port 13.

[0105] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A gas-liquid separation device, characterized in that: include: The device body has a mounting cavity, an air inlet, and an exhaust port, wherein one end of the device body is a high end portion and the other end is a low end portion, the air inlet is located at the low end portion, and the exhaust port is located at the high end portion; A gas-liquid separation mechanism, the gas-liquid separation mechanism comprising a shock-absorbing member, a first water-blocking member, and a first sealing plate, the shock-absorbing member having a first chamber, a first opening communicating with the first chamber at the bottom of the shock-absorbing member, and a plurality of air outlet holes communicating with the first chamber distributed on the sidewall of the shock-absorbing member; The first water-blocking member is sleeved on the outer side of the shock-absorbing member, a second chamber is formed between the first water-blocking member and the shock-absorbing member, and a second opening communicating with the second chamber is formed between the bottom of the first water-blocking member and the bottom of the shock-absorbing member; the first sealing plate is disposed on the top of the shock-absorbing member and the first water-blocking member and seals the top of the first chamber with the top of the second chamber; The gas-liquid separation mechanism further includes a second water-blocking member, the second water-blocking member being sleeved on the outside of the first water-blocking member, a third chamber being formed between the second water-blocking member and the first water-blocking member, a third opening being defined between the bottom of the second water-blocking member and the bottom of the first water-blocking member, and a fourth opening being defined between the top of the second water-blocking member and the top of the first water-blocking member; After entering through the air inlet, the external air first enters the first chamber through the first opening, passes through the air outlet to enter the second chamber, then passes through the second opening and the third opening in sequence to enter the third chamber, and finally is discharged through the fourth opening and the exhaust port; The gas-liquid separation device further includes a noise reduction mechanism, the noise reduction mechanism including a second sealing plate, a fourth chamber formed between the second water-blocking member and the device body, a plurality of connecting holes distributed on the second water-blocking member connecting the third chamber and the fourth chamber; the second sealing plate is disposed on the top of the second water-blocking member and seals the top of the fourth chamber; The noise reduction mechanism further includes a partition, which is arranged in the fourth chamber and fixedly connects the bottom of the second water blocking member to the equipment body, and is provided with a plurality of drainage holes.

2. The gas-liquid separation device according to claim 1, characterized in that: The gas-liquid separation mechanism further includes a first connecting member, which is disposed in the second chamber and fixedly connects the shock-absorbing component and the first water-blocking component.

3. The gas-liquid separation device according to claim 2, characterized in that: The noise reduction mechanism further includes a second connecting member and a third connecting member, the second connecting member and the third connecting member are respectively arranged in the third chamber, the second connecting member fixedly connects the top of the first water-blocking component and the top of the second water-blocking component; the third connecting member fixedly connects the bottom of the first water-blocking component and the bottom of the second water-blocking component.

4. The gas-liquid separation device according to claim 1, characterized in that: The shock-absorbing member, the first water-blocking member, and the second water-blocking member are all annular in shape and are coaxially arranged with the device body.

5. The gas-liquid separation equipment according to claim 1, characterized in that: The first sealing plate and the second sealing plate divide the mounting cavity into a first sub-mounting cavity and a second sub-mounting cavity in the vertical direction; the gas-liquid separation mechanism is provided in the second sub-mounting cavity, and connects the third chamber and the first sub-mounting cavity through the fourth opening; The noise reduction mechanism further includes a second noise reduction component, which includes a plurality of noise reduction tubes arranged in the first sub-mounting cavity and coaxially arranged with the equipment body. The noise reduction tubes are tubular structures with upper and lower openings, and the side walls have a plurality of noise reduction holes. The gas discharged from the fourth opening passes through the plurality of noise reduction tubes and is discharged through the exhaust port.

6. The gas-liquid separation equipment according to claim 5, characterized in that: The second noise reduction component further includes a fixed partition having fixed through-holes corresponding to the plurality of noise reduction tubes, and the plurality of noise reduction tubes are fixedly installed in the plurality of fixed through-holes.

7. The gas-liquid separation device according to claim 6, characterized in that: There are two fixed baffles, one of which is located at the top of the noise reduction tubes, and the other is located at the bottom of the noise reduction tubes.

8. The gas-liquid separation equipment according to claim 6, characterized in that: The second noise reduction component further includes a sound absorbing material layer disposed in the gaps between the plurality of noise reduction tubes.

9. The gas-liquid separation device according to claim 5, characterized in that: The noise reduction tube array comprises, from inside to outside, an inner perforated tube layer, a glass fiber cloth layer, a wire mesh layer and a bundling layer.

10. The gas-liquid separation device according to any one of claims 1 to 9, characterized in that: The gas-liquid separation equipment further includes a liquid recovery mechanism, which has a liquid collection tank located below the gas-liquid separation mechanism and a liquid discharge outlet connected to the liquid collection tank. The liquid gathered by the gas-liquid separation mechanism can enter the liquid collection tank under the action of gravity and be discharged through the liquid discharge outlet.

11. The gas-liquid separation device according to claim 10, characterized in that: The liquid recovery mechanism includes a holding trough body and a drain pipe. The holding trough body surrounds the liquid collection trough to form the liquid collection trough. The surface of the holding trough body at the bottom of the liquid collection trough is an arc-shaped surface with one end higher than the other end. An open end of the drain pipe is connected to the bottom of the arc-shaped surface and communicates with the liquid collection trough. The other end of the drain pipe has the liquid discharge outlet.

12. The gas-liquid separation device according to claim 10, characterized in that: The top of the device body is provided with an exhaust component, and the internal cavity of the exhaust component gradually shrinks from bottom to top to form the exhaust port.

13. A gas-liquid separation method using the gas-liquid separation device according to any one of claims 5 to 9, characterized in that: include: guiding the gas to be treated from the gas inlet into the first chamber of the shock absorbing member; The gas in the first chamber is guided to change its direction of movement and enter the second chamber between the first water-blocking member and the shock-absorbing member through the plurality of gas outlet holes on the side wall of the shock-absorbing member; The gas in the second chamber is guided into the third chamber through the second opening below the second chamber and the third opening below the third chamber between the second water blocking member and the first water blocking member, and is discharged through the fourth opening at the top of the third chamber.

14. The gas-liquid separation method according to claim 13, characterized in that: Also includes: The gas discharged from the fourth opening is guided to pass through a second noise reduction component arranged above the gas-liquid separation mechanism and then be discharged through the exhaust port, wherein the second noise reduction component includes a plurality of noise reduction tubes, and the noise reduction tubes are a tubular structure with upper and lower openings and a plurality of noise reduction holes on the side walls. The gas discharged from the fourth opening passes through the plurality of noise reduction tubes and then is discharged through the exhaust port.

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