A high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater

Abstract

The present invention provides a high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater, comprising a tank body, a heating component and an exhaust valve. Groundwater to be heated flows in from a liquid inlet of a support tube, and the groundwater can flow out from a plurality of holes on a side wall of the support tube. External hot liquid enters a first spiral plate and a second spiral plate from a heat transfer liquid inlet. When the heating component is driven to rotate by a motor, the hot liquid can flow in the first spiral plate, the second spiral plate, the upper connecting arc plate and the lower connecting arc plate, and flows out from a heat transfer liquid outlet, so as to directly heat the groundwater. The first spiral plate and the second spiral plate are spiral structures, so that the groundwater moves in a vertical direction, destroys the boundary layer of the groundwater, and improves the heating efficiency. Moreover, the groundwater is accelerated through the gap between the first spiral plate and the second spiral plate and the tank body under the action of its own gravity, so as to further improve the heating efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, and in particular to a high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater. Background Art

[0002] In daily life, people often need to spray pesticides on agricultural land, spread fertilizers and other chemicals to provide crops with the nutrients they need. In the process of spraying pesticides or laying fertilizers, pesticides and fertilizers will enter the groundwater through leakage or runoff. Some of these compounds are volatile organic pollutants. If these contaminated groundwater flows into human life and is accidentally ingested by humans, it will cause great harm to humans. Therefore, the contaminated groundwater needs to be purified.

[0003] The working process of existing groundwater purification equipment is generally to send the contaminated groundwater to a reaction tank, heat the reaction tank through a heating device, thereby heating the groundwater in the reaction tank, causing the volatile organic pollutants in the groundwater to be evaporated into gas, and then the gas is extracted outward through an air pump, thereby achieving the effect of gas-liquid separation.

[0004] In the heating process of the above heating equipment, heat transfer is too cumbersome and it is impossible to directly heat the groundwater in the reaction tank. Since the heat is transferred through the reaction tank, when the reaction tank transfers heat, it will cause temperature differences in the groundwater at different positions in the reaction tank. The resulting temperature difference will increase the heating time of the groundwater, thereby extending the time it takes to purify the groundwater. Summary of the invention

[0005] Based on this, it is necessary to provide an efficient gas-liquid separation equipment for treating VOCs-contaminated soil and groundwater in order to address the current problem of being unable to directly heat groundwater and the low heating efficiency.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater, comprising a tank body, a heating component and an exhaust valve; the heating component is accommodated in the tank body, and the exhaust valve is installed on the tank body pipeline to control the discharge of gas in the tank body;

[0008] The tank body includes a support tube, which passes through the center line of the tank body and penetrates the heating component. The upper part and the bottom of the support tube are respectively provided with a liquid inlet and a liquid outlet. The support tube has a hollow chamber inside. The liquid inlet and the liquid outlet are connected through the chamber. A plurality of holes are provided on the side wall of the support tube for connecting the chamber with the outside.

[0009] The top of the tank body is respectively provided with a liquid storage cavity, a heat transfer liquid inlet, and a heat transfer liquid outlet, and the tank body further comprises a spacer ring, which separates the liquid storage cavity into a first liquid storage cavity and a second liquid storage cavity, wherein the first liquid storage cavity is connected to the heat transfer liquid inlet, and the second liquid storage cavity is connected to the heat transfer liquid outlet;

[0010] The heating component comprises a connecting transmission disc, a first vortex spiral plate, a second vortex spiral plate, an upper connecting arc plate, and a lower connecting arc plate. The connecting transmission disc is sleeved on the top of the support cylinder and is sealed and abutted against the bottom of the liquid storage chamber. The connecting transmission disc has a transmission gear ring on its outer edge, and the transmission gear ring is used to cooperate with an external motor. Hot liquid inlet holes and hot liquid outlet holes are respectively opened on different circumferences of the connecting transmission disc. The hot liquid inlet hole is located in the first liquid storage chamber and is connected to the heat transfer liquid inlet. The hot liquid outlet hole is located in the second liquid storage chamber and is connected to the heat transfer liquid outlet.

[0011] The top of the first vortex spiral plate and the top of the second vortex spiral plate are fixedly connected to the connecting transmission disk respectively, and the first vortex spiral plate and the second vortex spiral plate are driven to rotate synchronously when the connecting transmission disk rotates. The top of the first vortex spiral plate and the top of the second vortex spiral plate are connected by the upper connecting arc plate, and the bottom is connected by the lower connecting arc plate. The interiors of the first vortex spiral plate, the second vortex spiral plate, the upper connecting arc plate, and the lower connecting arc plate are all hollow structures. The interior of the first vortex spiral plate is connected to the hot liquid inlet hole, and the interior of the second vortex spiral plate is connected to the hot liquid outlet hole.

[0012] In one embodiment, the first vortex spiral plate and the second vortex spiral plate are spiral structures along the vertical direction.

[0013] In one embodiment, the first vortex spiral plate and the second vortex spiral plate have a vortex structure in horizontal cross-section.

[0014] In one embodiment, the outer edges of the top and bottom of the support tube are respectively provided with annular grooves, and the outer edge of the support tube is provided with a plurality of vertical grooves along the vertical direction, and the annular grooves are connected to the vertical grooves.

[0015] In one embodiment, the gas-liquid separation equipment also includes a cleaning component, which includes a connecting ring and a cleaning arc plate. The inner layer of the connecting ring has a groove key at a preset position, and the outer layer of the connecting ring has a plurality of cleaning arc plates arranged in an array. The connecting ring is sleeved on the support tube and the groove key is accommodated in the vertical groove. There is a gap between adjacent cleaning arc plates for accommodating the first spiral plate and the second spiral plate.

[0016] In one embodiment, the width of the gap is adapted to the thickness of the first volute spiral plate and the second volute spiral plate.

[0017] In one of the embodiments, the gas-liquid separation device further includes a temperature transmitter, which is installed on the tank body and is used to detect the temperature value inside the tank body.

[0018] In one of the embodiments, the gas-liquid separation device further includes a pressure transmitter, which is installed on the tank body and is used to detect the pressure value in the tank body.

[0019] In one of the embodiments, the gas-liquid separation device further includes a manhole, which is installed on the tank body and is used to inspect the inside of the tank body.

[0020] In one of the embodiments, the gas-liquid separation equipment further comprises a magnetic flap liquid level gauge, which is installed on the tank body and is used to detect the liquid level value in the tank body.

[0021] The beneficial effects of the present invention are:

[0022] The present invention is provided by the coordination of a tank body, a heating component and an exhaust valve. The tank body includes a support tube, and the heating component includes a connecting transmission disk, a first spiral spiral plate, a second spiral spiral plate, an upper connecting arc plate and a lower connecting arc plate. The groundwater to be heated flows in from the liquid inlet of the support tube, and the groundwater can flow out from a plurality of holes on the side wall of the support tube. The external hot liquid enters the first spiral spiral plate and the second spiral spiral plate from the heat transfer liquid inlet. When the heating component is driven to rotate by a motor, the hot liquid can flow in the first spiral spiral plate, the second spiral spiral plate, the upper connecting arc plate and the lower connecting arc plate. The heat transfer liquid flows out from the outlet and can directly heat the groundwater. By setting the first spiral plate and the second spiral plate, the distance between two adjacent spiral plates can be made more uniform from the inside to the outside, thereby improving the heating effect inside and outside. At the same time, the first spiral plate and the second spiral plate are spiral structures, which makes the groundwater move in the vertical direction, destroying the boundary layer of the groundwater and improving the heating efficiency. Under the action of its own gravity, the groundwater will accelerate through the gap between the first spiral plate and the second spiral plate and the tank body, thereby further improving the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the system assembly structure of a high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the assembly structure of a high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater according to an embodiment of the present invention;

[0025] Figure 3 for Figure 2 A schematic cross-sectional view of a high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater according to an embodiment of the present invention;

[0026] Figure 4 for Figure 3 This is a schematic diagram of the enlarged structure of part A of a high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater according to an embodiment of the present invention;

[0027] Figure 5 for Figure 2 This is a schematic diagram of the assembly structure of a heating component of a high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater according to an embodiment of the present invention;

[0028] Figure 6 for Figure 5 A schematic cross-sectional view of a heating component of a high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater according to an embodiment of the present invention;

[0029] Figure 7 for Figure 2 This is a schematic diagram of the assembly structure of a cleaning component of a high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater according to an embodiment of the present invention.

[0030] in:

[0031] 100-tank;

[0032] 110-support tube;

[0033] 111-liquid inlet;

[0034] 112-liquid outlet;

[0035] 113-chamber;

[0036] 114-hole;

[0037] 115-ring groove;

[0038] 116-vertical slot;

[0039] 117-air outlet;

[0040] 120-liquid storage chamber;

[0041] 121-first liquid storage chamber;

[0042] 122- second liquid storage chamber;

[0043] 130 - heat transfer liquid inlet;

[0044] 140-heat transfer liquid outlet;

[0045] 150-spacer ring;

[0046] 200-heating component;

[0047] 210-connecting the transmission plate;

[0048] 211- transmission gear ring;

[0049] 212- hydrothermal inlet hole;

[0050] 213- hydrothermal outlet;

[0051] 220-first vortex spiral plate;

[0052] 230 - second vortex spiral plate;

[0053] 240-upper connecting arc plate;

[0054] 250-lower connecting arc plate;

[0055] 300-Pneumatic wafer ball valve;

[0056] 400-cleaning components;

[0057] 410-connecting ring;

[0058] 420-Cleaning arc plate;

[0059] 430-slot key;

[0060] 440-gap;

[0061] 500-Temperature transmitter;

[0062] 600-pressure transmitter;

[0063] 700-manhole;

[0064] 800-Magnetic flap level gauge. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0066] The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0067] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] like Figure 1 , Figure 2 As shown, a high-efficiency gas-liquid separation device for treating VOCs-contaminated soil and groundwater comprises a tank body 100, a heating component 200 and an exhaust valve (not shown in the figure); the heating component 200 is accommodated in the tank body 100, and the exhaust valve is installed on the exhaust pipeline of the tank body 100 to control the discharge of the gas in the tank body 100;

[0069] like Figure 3 As shown, the tank body 100 includes a support tube 110, which passes through the center line position of the tank body 100 and penetrates the heating component 200. The upper part and the bottom of the support tube 110 are respectively provided with a liquid inlet 111 and a liquid outlet 112. The support tube 110 has a hollow chamber 113, and the liquid inlet 111 and the liquid outlet 112 are connected through the chamber 113. A plurality of holes 114 are provided on the side wall of the support tube 110 for connecting the chamber 113 with the outside; an air outlet 117 is provided on the top of the tank body 100, and the air outlet 117 is connected to the air outlet pipe, and an exhaust valve is installed on the air outlet pipe to control the opening and closing of the air outlet 117;

[0070] like Figure 4As shown, a liquid storage chamber 120, a heat transfer liquid inlet 130, and a heat transfer liquid outlet 140 are respectively opened on the top of the tank body 100, and the tank body 100 also includes a spacer ring 150, which separates the liquid storage chamber into a first liquid storage chamber 121 and a second liquid storage chamber 122, the first liquid storage chamber 121 is connected to the heat transfer liquid inlet 130, and the second liquid storage chamber 122 is connected to the heat transfer liquid outlet 140;

[0071] like Figure 5 and Figure 6 As shown, the heating component 200 includes a connecting transmission disk 210, a first vortex spiral plate 220, a second vortex spiral plate 230, an upper connecting arc plate 240, and a lower connecting arc plate 250. The connecting transmission disk 210 is sleeved on the top of the support cylinder 110 and is sealed and abutted with the bottom of the liquid storage chamber 120. The connecting transmission disk 210 has a transmission gear ring 211 on its outer edge, and the transmission gear ring 211 is used to cooperate with an external motor. Hot liquid inlet holes 212 and hot liquid outlet holes 213 are respectively opened on different circumferences of the connecting transmission disk 210. The hot liquid inlet hole 212 is located in the first liquid storage chamber 121 and is connected to the heat transfer liquid inlet 130. The hot liquid outlet hole 213 is located in the second liquid storage chamber 122 and is connected to the heat transfer liquid outlet 130.

[0072] The top of the first vortex spiral plate 220 and the top of the second vortex spiral plate 230 are respectively fixedly connected to the connecting transmission disk 210, and when the connecting transmission disk 210 rotates, the first vortex spiral plate 220 and the second vortex spiral plate 230 are driven to rotate synchronously. The top of the first vortex spiral plate 220 and the top of the second vortex spiral plate 230 are connected by the upper connecting arc plate 240, and the bottom is connected by the lower connecting arc plate 250. The interiors of the first vortex spiral plate 220, the second vortex spiral plate 230, the upper connecting arc plate 240, and the lower connecting arc plate 250 are all hollow structures. The interior of the first vortex spiral plate 220 is connected to the hot liquid inlet hole 212, and the interior of the second vortex spiral plate 230 is connected to the hot liquid outlet hole 213.

[0073] The first spiral plate 220 and the second spiral plate 230 are spiral structures in the vertical direction; the horizontal cross-sections of the first spiral plate 220 and the second spiral plate 230 are spiral structures. The difference between the first spiral plate 220 and the second spiral plate 230 is that the outer ring of the first spiral plate 220 is larger than the outer ring of the second spiral plate 230 and is close to the inner wall of the tank body 100, and there is a gap between the outer ring of the second spiral plate 230 and the inner wall of the tank body 100 to allow groundwater to pass through, and the inner ring of the second spiral plate 230 is smaller than the inner ring of the first spiral plate 220 and is close to the outer wall of the support tube 110, that is, there is a gap between the inner ring of the first spiral plate 220 and the outer wall of the support tube 110 to allow groundwater to pass through.

[0074] When it is necessary to treat groundwater, the groundwater to be treated is introduced into the support cylinder 110 through the liquid inlet 111, and the groundwater to be treated flows in the chamber 113, and part of it flows out from the hole 114 to the heating component 200, and the liquid outlet 112 is in a closed state. The external motor is started, and the external motor drives the connecting drive plate 210 to rotate through the transmission gear ring 211, and the transmission plate 210 drives the first vortex spiral plate 220, the second vortex spiral plate 230, the upper connecting arc plate 240, and the lower connecting arc plate 250 to rotate together. At the same time, the hot liquid is pumped in from the heat transfer liquid inlet 130, then flows into the first liquid storage chamber 121, and flows into the first spiral plate 220 from the hot liquid inlet hole 212 of the first liquid storage chamber 121. The hot liquid circulates in the first spiral plate 220, the second spiral plate 230, the upper connecting arc plate 240, and the lower connecting arc plate 250, and flows out from the hot liquid outlet hole 213 to the second liquid storage chamber 122, and then flows out from the second liquid storage chamber 122 to the heat transfer liquid outlet 140, and then flows out from the heat transfer liquid outlet 140 to the outside. During the rotation of the first spiral plate 220, the second spiral plate 230, the upper connecting arc plate 240, and the lower connecting arc plate 250, the groundwater to be treated is driven to move in the vertical direction. In addition to the vertical movement caused by the arrangement of the first spiral plate 220, the second spiral plate 230, the upper connecting arc plate 240, and the lower connecting arc plate 250, the groundwater will also form a circulation flow inside and outside the first spiral plate 220 and the second spiral plate 230, and the first spiral plate 2 After the outer gap between the first spiral plate 20 and the outer wall of the tank body 100 flows into the channel between the next first spiral plate 220 and the second spiral plate 230, it flows toward the inner circle center in this channel, and then flows from the inner gap between the first spiral plate 220 and the inner wall of the tank body 100 into the next channel between 220 and 230, flows toward the outer circle in this channel, and then flows from the outer gap between 220 and the outer wall of 100 into the channel between the next first spiral plate 220 and the second spiral plate 230, and the above process forms a cycle. At the same time, the first spiral plate 220, the second spiral plate 230, the upper connecting arc plate 240, and the lower connecting arc plate 250 continuously heat the groundwater to be treated through the internal hot liquid, so that the gas and liquid are separated, the gas is extracted from the exhaust valve, and the liquid is discharged from the liquid outlet 112.

[0075] In this way, the present invention is configured by the coordination of the tank body 100, the heating component 200 and the exhaust valve. The tank body 100 includes a support tube 110, and the heating component 200 includes a connecting transmission disk 210, a first vortex spiral plate 220, a second vortex spiral plate 230, an upper connecting arc plate 240, and a lower connecting arc plate 250. The groundwater to be heated flows in from the liquid inlet 111 of the support tube 110, and the groundwater can flow out from a plurality of holes 114 on the side wall of the support tube 110. The external hot liquid enters the first vortex spiral plate 220 and the second vortex spiral plate 230 from the heat transfer liquid inlet 130. When the heating component 200 is driven to rotate by the motor, the hot liquid can flow in the first vortex spiral plate 220 and the second vortex spiral plate 230. The heat transfer liquid flows inside the spiral plate 230, the upper connecting arc plate 240, and the lower connecting arc plate 250, and flows out from the heat transfer liquid outlet 140, which can directly heat the groundwater. Through the arrangement of the first spiral spiral plate 220 and the second spiral spiral plate 230, the distance between two adjacent spiral spiral plates can be made more uniform from the inside to the outside, thereby improving the heating effect inside and outside. At the same time, the first spiral spiral plate 220 and the second spiral spiral plate 230 are spiral structures, which makes the groundwater move in the vertical direction, destroying the boundary layer of the groundwater and improving the heating efficiency. Moreover, the groundwater will accelerate through the gap between the first spiral spiral plate and the second spiral spiral plate and the tank body under the action of its own gravity, thereby further improving the heating efficiency.

[0076] In one embodiment, annular grooves 115 are respectively provided on the outer edges of the top and bottom of the support cylinder 110, and a plurality of vertical grooves 116 are provided on the outer edge of the support cylinder 110 in the vertical direction, and the annular grooves 115 are connected to the vertical grooves 116; the gas-liquid separation equipment also includes a cleaning component 400, and the cleaning component 400 includes a connecting ring 410 and a cleaning arc plate 420, and the inner layer of the connecting ring 410 has a groove key 430 at a preset position, and the outer layer of the connecting ring 410 has a plurality of cleaning arc plates 420 arranged in an array, the connecting ring 410 is sleeved on the support cylinder 1100 and the groove key 430 is accommodated in the vertical groove 116, and a gap 440 is provided between adjacent cleaning arc plates 420 for accommodating the first vortex spiral plate 220 and the second vortex spiral plate 230; the width of the gap 440 is adapted to the thickness of the first vortex spiral plate 220 and the second vortex spiral plate 230.

[0077] After the groundwater is heated by the heating component 200, a lot of impurities will adhere to the surface of the heating component 200, which seriously affects the heat transfer and reduces the efficiency of the equipment. Therefore, the present application sets a cleaning component 400.

[0078] like Figure 7As shown, in the initial state, the coupling ring 410 is sleeved on the annular groove 115 at the bottom, and the slot key 430 is accommodated in the annular groove 115 at the bottom. When the heating component 200 starts to rotate, the heating component 200 rotates relative to the cleaning component 400, driving the coupling ring 410 to move from the annular groove 115 at the bottom to the annular groove 115 at the top. During the movement, the slot key 430 moves toward the top along the vertical groove 116, and the cleaning arc plate 420 scrapes and cleans the adjacent first vortex spiral plate 220 and the second vortex spiral plate 230 until the coupling ring 410 moves into the annular groove 115 at the top and rotates with the heating component 200. When the heating component 200 stops rotating, the coupling ring 410 and the cleaning arc plate 420 slide toward the bottom in the vertical groove 116 through the slot key 430 due to gravity. The first vortex spiral plate 220 and the second vortex spiral plate 230 are scraped and cleaned by the cleaning arc plate 420 of the cleaning assembly 400 to clean the impurities on the surface.

[0079] In one embodiment, the gas-liquid separation device further includes a temperature transmitter 500 , which is installed on the tank body 100 and is used to detect the temperature value inside the tank body 100 .

[0080] In this way, the temperature value in the tank body 100 is detected in real time by the temperature transmitter 500 and sent to the control module. When the temperature value in the tank body 100 exceeds the preset threshold, the control module stops adding hot liquid to ensure the safety of the gas-liquid separation equipment.

[0081] In one embodiment, the gas-liquid separation device further includes a pressure transmitter 600 , which is installed on the tank body 100 and is used to detect the pressure value in the tank body 100 .

[0082] In this way, the pressure transmitter 600 detects the pressure value inside the tank body 100 in real time and sends it to the control module. When the pressure value is greater than the preset threshold, the exhaust valve is controlled to open and the internal gas is pumped out through an external air pump to avoid damage to the gas-liquid separation equipment caused by excessive pressure in the tank body 100.

[0083] In one of the embodiments, the gas-liquid separation device further includes a manhole 700 , which is installed on the tank body 100 and is used to inspect the inside of the tank body 100 .

[0084] In this way, by providing the manhole 700 , when the gas-liquid separation device is not working, the internal devices of the device can be inspected, repaired or replaced through the manhole 700 .

[0085] In one of the embodiments, a pneumatic wafer ball valve 300 is further provided on the tank body 100, and the pneumatic wafer ball valve 300 controls the opening of the emergency exhaust port to exhaust the tank body in an emergency (pressure exceeds the maximum upper limit).

[0086] In one of the embodiments, the gas-liquid separation device further includes a magnetic flap liquid level meter 800 , which is installed on the tank body 100 and is used to detect the liquid level value in the tank body 100 .

[0087] In this way, the magnetic flap level meter 800 detects the liquid level value in the tank body 100 in real time and sends it to the control module. When the liquid level value of the groundwater added is too high, the control module controls to stop adding groundwater.

[0088] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The above-described embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An efficient gas-liquid separation device for treating VOCs-contaminated soil and groundwater, characterized in that: It comprises a tank body, a heating component and an exhaust valve; the heating component is accommodated in the tank body, and the exhaust valve is installed on the exhaust pipeline of the tank body to control the discharge of the gas in the tank body; The tank body includes a support tube, which passes through the center line of the tank body and penetrates the heating component. The upper part and the bottom of the support tube are respectively provided with a liquid inlet and a liquid outlet. The support tube has a hollow chamber inside. The liquid inlet and the liquid outlet are connected through the chamber. A plurality of holes are provided on the side wall of the support tube for connecting the chamber with the outside. The top of the tank body is respectively provided with a liquid storage cavity, a heat transfer liquid inlet, and a heat transfer liquid outlet, and the tank body further comprises a spacer ring, which separates the liquid storage cavity into a first liquid storage cavity and a second liquid storage cavity, wherein the first liquid storage cavity is connected to the heat transfer liquid inlet, and the second liquid storage cavity is connected to the heat transfer liquid outlet; The heating component comprises a connecting transmission disc, a first vortex spiral plate, a second vortex spiral plate, an upper connecting arc plate, and a lower connecting arc plate. The connecting transmission disc is sleeved on the top of the support cylinder and is sealed and abutted against the bottom of the liquid storage chamber. The connecting transmission disc has a transmission gear ring on its outer edge, and the transmission gear ring is used to cooperate with an external motor. Hot liquid inlet holes and hot liquid outlet holes are respectively opened on different circumferences of the connecting transmission disc. The hot liquid inlet hole is located in the first liquid storage chamber and is connected to the heat transfer liquid inlet. The hot liquid outlet hole is located in the second liquid storage chamber and is connected to the heat transfer liquid outlet. The top of the first vortex spiral plate and the top of the second vortex spiral plate are fixedly connected to the connecting transmission disk respectively, and the first vortex spiral plate and the second vortex spiral plate are driven to rotate synchronously when the connecting transmission disk rotates. The top of the first vortex spiral plate and the top of the second vortex spiral plate are connected by the upper connecting arc plate, and the bottom is connected by the lower connecting arc plate. The interiors of the first vortex spiral plate, the second vortex spiral plate, the upper connecting arc plate, and the lower connecting arc plate are all hollow structures. The interior of the first vortex spiral plate is connected to the hot liquid inlet hole, and the interior of the second vortex spiral plate is connected to the hot liquid outlet hole.

2. The high-efficiency gas-liquid separation equipment for treating VOCs-contaminated soil and groundwater according to claim 1 is characterized in that: The first spiral plate and the second spiral plate are spiral structures along the vertical direction.

3. The high-efficiency gas-liquid separation equipment for treating VOCs-contaminated soil and groundwater according to claim 2 is characterized in that: The first spiral plate and the second spiral plate have spiral structures in horizontal cross-section.

4. The high-efficiency gas-liquid separation equipment for treating VOCs-contaminated soil and groundwater according to claim 1 is characterized in that: The outer edges of the top and bottom of the support tube are respectively provided with annular grooves, and the outer edge of the support tube is provided with a plurality of vertical grooves along the vertical direction, and the annular grooves are connected with the vertical grooves.

5. The high-efficiency gas-liquid separation equipment for treating VOCs-contaminated soil and groundwater according to claim 4 is characterized in that: The gas-liquid separation equipment also includes a cleaning component, which includes a connecting ring and a cleaning arc plate. The inner layer of the connecting ring has a groove key at a preset position, and the outer layer of the connecting ring has a plurality of cleaning arc plates arranged in an array. The connecting ring is sleeved on the support tube and the groove key is accommodated in the vertical groove. There is a gap between adjacent cleaning arc plates for accommodating the first vortex spiral plate and the second vortex spiral plate.

6. The high-efficiency gas-liquid separation equipment for treating VOCs-contaminated soil and groundwater according to claim 5 is characterized in that: The width of the gap is adapted to the thickness of the first volute spiral plate and the second volute spiral plate.

7. The high-efficiency gas-liquid separation equipment for treating VOCs-contaminated soil and groundwater according to claim 1 is characterized in that: The gas-liquid separation device further comprises a temperature transmitter, which is installed on the tank body and is used to detect the temperature value inside the tank body.

8. The high-efficiency gas-liquid separation equipment for treating VOCs-contaminated soil and groundwater according to claim 1 is characterized in that: The gas-liquid separation device further comprises a pressure transmitter, which is installed on the tank body and is used to detect the pressure value in the tank body.

9. The high-efficiency gas-liquid separation equipment for treating VOCs-contaminated soil and groundwater according to claim 1, characterized in that: The gas-liquid separation equipment further comprises a manhole, which is installed on the tank body and is used for inspecting the inside of the tank body.

10. The high-efficiency gas-liquid separation equipment for treating VOCs-contaminated soil and groundwater according to claim 1, characterized in that: The gas-liquid separation equipment also includes a magnetic flap liquid level gauge, which is installed on the tank body and is used to detect the liquid level value in the tank body.

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