Vacuum air lift

Abstract

The present application relates to the field of vacuum airlift, and in particular to a vacuum airlifter, which includes a tank body, a filler assembly and a heating assembly arranged in the tank body; a water inlet and a water outlet are respectively provided at the top and bottom of the tank body, and a vacuum port is provided on the side wall of the tank body, and the vacuum port is used to connect with a vacuum pump; the filler assembly is located below the vacuum port, and the heating assembly is located below the filler assembly; the heating assembly includes a plurality of semicircular arc disks stacked in the tank body and a plurality of heating coils arranged one-to-one on the plurality of semicircular arc disks; the diameter of the heating coil is smaller than the diameter of the semicircular arc disk and is arranged in the depression of the semicircular arc disk; the plurality of heating coils are connected in sequence, and one of the heating coils is connected to an industrial waste heat inlet pipe, and the other heating coil is connected to an outlet pipe, and the industrial waste heat inlet pipe and outlet pipe are respectively passed through the tank body. The present application has the effect of reducing energy consumption when removing gas from water.

Description

Technical Field

[0001] The present application relates to the field of vacuum stripping, and in particular to a vacuum stripping device. Background Art

[0002] Thermal deaerator (rotating film deaerator) is a deoxygenation device that can remove dissolved oxygen and other gases in the feed water of the thermal system to prevent corrosion of thermal equipment. It is an important equipment to ensure the safe operation of power plants and industrial boilers.

[0003] The thermal deaerator uses steam to heat water to a saturation temperature at a certain pressure. In a mixed gas or liquid containing dissolved gases, the total pressure of the gas is equal to the sum of the partial pressures of each gas. Heating and increasing the pressure of the steam can reduce the partial pressure of the gas in the water. The solubility of the gas in water is proportional to the partial pressure. Therefore, when the partial pressure of the gas in water is reduced, the solubility of the gas will also decrease, thereby achieving the effect of removing the gas from the water.

[0004] However, using steam to heat water to a saturation temperature at a certain pressure requires steam consumption, and the lower the water temperature, the greater the amount of steam required for heating. The higher the gas removal rate in water, the higher the steam partial pressure required, the higher the corresponding temperature, and the greater the amount of steam required for heating. Since the water required for thermal equipment in power plants and industrial boilers is hot water, the water needs to be at a certain temperature after the gas is removed, but the energy consumption of using thermal deoxygenation to remove gas from water is high. Summary of the invention

[0005] In order to reduce the energy consumption when removing gas from water, the present application provides a vacuum stripping device.

[0006] The vacuum stripper provided in this application adopts the following technical solution:

[0007] A vacuum air stripper comprises a tank body, a filler assembly and a heating assembly arranged in the tank body;

[0008] The top and bottom of the tank body are respectively provided with a water inlet and a water outlet, and the side wall of the tank body is provided with a vacuum port, and the vacuum port is used to connect with an air pump; the filler assembly is located below the vacuum port, and the heating assembly is located below the filler assembly;

[0009] The heating assembly comprises a plurality of semi-circular disks stacked in the tank body and a plurality of heating coils arranged one by one on the plurality of semi-circular disks; the semi-circular disks are coiled semi-circular plates, the heating coils are coiled round tubes, the diameter of the heating coils is smaller than the diameter of the semi-circular disks and the heating coils are arranged in the depressions of the semi-circular disks;

[0010] The multiple heating coils are connected in sequence, and one of the heating coils is connected to an industrial waste heat inlet pipe, and the other heating coil is connected to an outlet pipe. The industrial waste heat inlet pipe and outlet pipe are respectively penetrated through the tank body, and the industrial waste heat inlet pipe is used to connect to the equipment that generates industrial waste heat.

[0011] By adopting the above technical solution, when removing gas from water, first connect the equipment that generates industrial waste heat to the industrial waste heat inlet pipe, so as to heat multiple heating coils, and then the heating coils conduct heat to the semi-circular plate, so as to heat the semi-circular plate, thereby increasing the heating area of ​​the water. Water enters the tank body from the water inlet of the tank body, and the vacuum pump extracts the gas in the tank body, while the filler assembly has an excellent mass transfer effect, so that the gas in the water is removed when the vacuum pump reduces the partial pressure of the gas in the water in the tank body. After the water passes through the filler assembly, the semi-circular plate and the heating coil can exchange heat with the water, and the concave part of the semi-circular plate can temporarily store the water, thereby increasing the heating time, and then reducing the energy consumption when removing gas from the water by combining vacuum gas extraction and industrial waste heat.

[0012] Optionally, the heating assembly further comprises a plurality of second support members disposed in the tank body, wherein the second support members comprise a connecting circular plate and a plurality of supporting square tubes;

[0013] One end of the supporting square tube is connected to the inner wall of the tank body, and the other end is connected to the connecting circular plate; the semicircular arc disk is arranged on a plurality of supporting square tubes.

[0014] By adopting the above technical solution, the semi-circular plate and the heating coil will be impacted by water, and the semi-circular plate can be supported by providing a supporting square tube, thereby improving the stability of the semi-circular plate and the heating coil connected to the tank body. The side wall surface area of ​​the connecting circular plate is large, and providing a connecting circular plate can facilitate the connection of one end of the supporting square tubes that are connected to each other.

[0015] Optionally, the portion of the industrial waste heat inlet pipe located outside the tank body is sheathed with a thermal insulation layer;

[0016] The thermal insulation layer comprises a polyurethane thermal insulation layer sleeved on the industrial waste heat inlet pipe and a polyethylene protective layer sleeved on the polyurethane thermal insulation layer.

[0017] By adopting the above technical solution, the polyurethane insulation layer can be provided to insulate the industrial waste heat inlet pipe, thereby reducing the possibility of heat exchange between the waste heat in the industrial waste heat inlet pipe and the external air, thereby reducing heat loss. The polyethylene protective layer has a strong structural strength and can protect the polyurethane insulation layer, thereby reducing the possibility of damage to the polyurethane insulation layer.

[0018] Optionally, the filler assembly includes a composite filler disposed in the tank body and in a cylindrical shape; the composite filler includes at least one limiting tie, a plurality of corrugated plates and a plurality of isolation plates;

[0019] The plurality of corrugated plates and the plurality of isolation plates are arranged in a staggered manner, the limiting tie bands are tied to the plurality of corrugated plates and the plurality of isolation plates, and a water leakage cavity is formed between adjacent corrugated plates and isolation plates.

[0020] By adopting the above technical solution, the corrugated plate has a large surface area, can fully contact with water, and has an excellent mass transfer effect. The isolation plate can isolate the bend of the corrugated plate into a water-leaking cavity, thereby facilitating the passage of water. The limiting tie is used to tie the corrugated plate and the isolation plate to reduce the possibility of the corrugated plate and the isolation plate falling apart.

[0021] Optionally, the filler assembly further comprises a first support member, the first support member comprises a support ring plate arranged in the tank body, and the edges of the corrugated plate and the isolation plate are arranged on the support ring plate.

[0022] By adopting the above technical solution, the bottom edge of the entire composite filler can be supported by the supporting ring plate, so that the entire composite filler remains stable when impacted by water.

[0023] Optionally, it also includes a water distribution assembly located between the packing assembly and the vacuum port;

[0024] The water distribution assembly includes a coarse cloth plate and a fine cloth plate stacked from top to bottom in the tank body, the coarse cloth plate is provided with a plurality of first water distribution holes, the fine cloth plate is provided with a plurality of second water distribution holes, and the diameter of the first water distribution holes is greater than the diameter of the second water distribution holes.

[0025] By adopting the above technical solution, when water passes through the coarse cloth plate, the first water distribution hole on the coarse cloth plate distributes the water for the first time. When water passes through the fine cloth plate, the second water distribution hole on the fine cloth plate distributes the water for the second time. Thus, the water flows evenly into multiple water leakage cavities, so that the corrugated plate and the isolation plate are fully in contact with the water, thereby improving the effect of removing gas from the water.

[0026] Optionally, it also includes a gas-water separation component located between the coarse cloth plate and the vacuum port;

[0027] The gas-water separation component is arranged on a conical cylinder plate on the inner wall of the tank body and a conical plate arranged on the conical cylinder plate; the cone tip of the conical plate faces upward, the edge of the smaller opening of the conical cylinder plate faces downward and is located below the conical plate, and a gap is left between the conical cylinder plate and the conical plate.

[0028] By adopting the above technical solution, in the process of removing gas from water, water is easily gasified and mixed with other gases to be pumped out by the air pump. When the mixed gas moves upward under the action of the air pump, the outer wall of the cone plate first blocks the mixed gas, so that the water can adhere to the outer wall of the cone plate, and then the remaining mixed gas continues to move upward, and the water in the remaining mixed gas will adhere to the inner wall of the conical plate. After that, the small water droplets on the cone plate and the conical plate can drip under the action of gravity, thereby realizing the stripping of water vapor in the mixed gas and reducing water loss.

[0029] Optionally, the gas-water separation assembly further includes a plurality of first support rods; one end of the first support rod is arranged on the inner wall of the tank body, and the other end is arranged on the outer wall of the conical cylinder plate, and the plurality of first support rods are arranged at equal intervals along the central axis of the conical cylinder plate.

[0030] By adopting the above technical solution, the inner wall of the conical cylinder plate is the water-facing side and will be impacted by the water flow. The first support rod can provide additional support for the conical cylinder plate, thereby improving the stability of the conical cylinder plate connected to the inner wall of the tank body.

[0031] Optionally, the gas-water separation assembly further includes a plurality of second support rods; one end of the second support rod is arranged on the inner wall of the conical cylinder plate, and the other end is arranged on the inner wall of the conical plate, and the plurality of second support rods are arranged at equal intervals along the central axis of the conical plate.

[0032] By adopting the above technical solution, the conical plate is connected to the conical cylinder plate through the second support rod, and a gap is left between the conical cylinder plate and the conical plate under the support of the second support rod.

[0033] Optionally, also includes a gas distribution assembly located between the filler assembly and the heating coil;

[0034] The gas distribution assembly comprises a distribution plate and a distribution annular tube arranged on the inner wall of the tank from top to bottom; a plurality of distribution holes are opened on the distribution plate, and a plurality of gas outlet holes are opened at equal intervals along the central axis on the inner edge of the distribution annular tube;

[0035] The tank body is also provided with an inert gas inlet, the inert gas inlet is connected to the distribution annular pipe, and the inert gas inlet is connected to a solenoid valve.

[0036] By adopting the above technical solution, when removing gas from water, the solenoid valve can be opened and the inert gas can be introduced into the tank body through the inert gas inlet. In this process, the inert gas first enters the distribution annular tube, moves into the tank body from the gas outlet, and then enters the leaking cavity of the composite filler after being evenly distributed through the distribution holes on the distribution plate. The inert gas can reduce the partial pressure of the gas in the water, thereby improving the effect of removing gas from the water, and finally the inert gas is discharged from the vacuum port.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] 1. By using vacuum pumping and industrial waste heat heating to remove gas from water, the energy consumption for removing gas from water can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0040] Figure 2 It is a schematic diagram of the cross-sectional structure of the tank body in the embodiment of the present application.

[0041] Figure 3 It is a schematic diagram of the structure of the packing assembly in the embodiment of the present application.

[0042] Figure 4 It is a schematic diagram of the structure of the gas distribution component in the embodiment of the present application.

[0043] Figure 5 It is a schematic diagram of the structure of the heating component in the embodiment of the present application.

[0044] Reference numerals:

[0045] 1. Tank body; 11. Water inlet; 111. Water inlet pipe; 112. Water inlet connecting flange; 12. Water outlet; 121. Water outlet pipe; 122. Water outlet connecting flange; 13. Vacuuming port; 131. Vacuuming pipe; 132. Vacuuming connecting flange; 14. Inert gas inlet; 141. Inert gas inlet pipe; 142. Solenoid valve;

[0046] 2. Gas-water separation assembly; 21. Cone plate; 22. Cone plate; 23. First support rod; 24. Second support rod;

[0047] 3. water distribution assembly; 31. coarse cloth plate; 311. first water distribution hole; 32. fine cloth plate; 321. second water distribution hole;

[0048] 4. Filler assembly; 41. First support member; 411. Support ring plate; 412. Reinforcement ribs; 42. Composite filler; 421. Positioning tie; 422. Corrugated plate; 423. Isolation plate; 424. Leakage cavity;

[0049] 5. gas distribution assembly; 51. distribution plate; 511. distribution hole; 52. distribution annular tube; 521. gas outlet;

[0050] 6. Heating assembly; 61. Second supporting member; 611. Connecting circular plate; 612. Supporting square tube; 62. Semicircular arc disk; 63. Heating coil; 64. Industrial waste heat inlet pipe; 641. Thermal insulation layer; 6411. Polyurethane thermal insulation layer; 6412. Polyethylene protective layer; 65. Outlet pipe. DETAILED DESCRIPTION

[0051] The following is combined with Figure 1-5 This application is described in further detail.

[0052] The embodiment of the present application discloses a vacuum air stripper.

[0053] Reference Figure 1 and Figure 2 The vacuum air stripper comprises a tank body 1, a gas-water separation component 2, a water distribution component 3, a filler component 4, a gas distribution component 5 and a heating component 6. The tank body 1 is vertically fixed to the ground through a bracket, and the gas-water separation component 2, the water distribution component 3, the filler component 4, the gas distribution component 5 and the heating component 6 are sequentially arranged in the tank body 1 from top to bottom, and there are gaps between the gas-water separation component 2, the water distribution component 3, the filler component 4, the gas distribution component 5 and the heating component 6.

[0054] A water inlet 11 is provided at one end of the top of the tank body 1, and a water inlet pipe 111 is vertically fixedly connected to the edge of the water inlet 11. A water inlet connection flange 112 is coaxially fixedly connected to the end of the water inlet pipe 111 away from the tank body 1, so as to facilitate connection with an external water source. A water outlet 12 is provided at one end of the bottom of the tank body 1, and a water outlet pipe 121 is vertically fixedly connected to the edge of the water outlet 12, and a water outlet connection flange 122 is coaxially fixedly connected to the end of the water outlet pipe 121 away from the tank body 1, so as to facilitate water to flow out of the tank body 1.

[0055] A vacuum port 13 is provided on the side wall of the tank body 1 near the top end, and a vacuum pipe 131 is horizontally fixedly connected to the edge of the vacuum port 13. A vacuum connection flange 132 is coaxially fixedly connected to the end of the vacuum pipe 131 away from the tank body 1, and the vacuum flange can be connected to an air pump. In the embodiment of the present application, the air pump is selected as a liquid ring vacuum pump, and in other embodiments, the vacuum pump can also be selected as a hydraulic jet pump.

[0056] An inert gas inlet 14 is provided on the side wall of the tank body 1 near the bottom end. The inert gas inlet 14 and the vacuum port 13 are located on the same side of the tank body 1. An inert gas inlet pipe 141 is horizontally fixedly connected to the edge of the inert gas inlet 14. An end of the inert gas inlet pipe away from the tank body 1 is connected to a solenoid valve 142, and the opening and closing of the inert gas inlet pipe can be controlled by the solenoid valve 142. The inert gas can enter the tank body 1 through the inert gas inlet pipe via the inert gas inlet 14.

[0057] In the embodiment of the present application, the inert gas may be N2 with a purity greater than 99.0%. The gas-water separation component 2 , the water distribution component 3 , the filler component 4 and the gas distribution component 5 are located between the vacuum port 13 and the inert gas inlet 14 .

[0058] When water enters the tank body 1 from the water inlet 11, the vacuum pump evacuates the tank body 1 from the vacuum port 13, and the inert gas enters the tank body 1 from the inert gas inlet 14. The gas-water separation component 2 is used to reduce the possibility of extracting water in the gas. The water distribution component 3 is used to evenly distribute the water and let it fall on the packing component 4. The packing component 4 has an excellent mass transfer effect, and the water passing through the packing component 4 can remove the gas in the water.

[0059] The gas distribution component 5 is used to evenly distribute the inert gas, and then the inert gas enters the packing component 4 to reduce the partial pressure of the gas in the water to improve the degassing effect, and the inert gas is finally extracted by the vacuum pump. The heating component 6 uses industrial waste heat to heat the water, thereby raising the temperature of the water so that the water has a certain temperature when entering the thermal equipment.

[0060] Reference Figure 2 The gas-water separation component 2 includes a conical cylinder plate 21, a circular cone plate 22, a plurality of first support rods 23 and a plurality of second support rods 24. The conical cylinder plate 21 is hollow, and has a larger opening at one end and a smaller opening at the other end. The circular cone plate 22 is in the shape of a hollow cone. The edge of the larger opening end of the conical cylinder plate 21 is fixedly connected to the inner wall of the tank body 1 near the top, and the smaller opening end of the conical cylinder plate 21 is located at the end of the tank body 1 away from the top. One end of the first support rod 23 is fixedly connected to the middle section of the outer wall of the conical cylinder plate 21, and the other end is fixedly connected to the inner wall of the larger opening end of the conical cylinder plate 21 away from the top of the tank body 1. And the plurality of first support rods 23 are arranged at equal intervals along the central axis of the conical cylinder plate 21.

[0061] In the embodiment of the present application, the number of the first support rods 23 is selected as three. In other embodiments, the number of the first support rods 23 can also be selected as other numbers greater than three. The first support rods 23 are used to support the cone cylinder plate 21 to improve the stability of the connection of the cone cylinder plate 21.

[0062] One end of the second support rod 24 is fixedly connected to the middle section of the inner wall of the cone plate 21, and the other end is fixedly connected to the middle section of the inner wall of the circular cone plate 22, and a plurality of second support rods 24 are arranged at equal intervals along the central axis of the circular cone plate 22. The cone angle of the circular cone plate 22 is vertically upward toward the top of the tank body 1, and the central axis of the circular cone plate 22, the central axis of the cone plate 21 and the central axis of the tank body 1 are collinear. There is a gap between the edge of the circular cone plate 22 away from the cone angle and the inner wall of the tank body 1, and the circular cone plate 22 and the circular cone plate 21 do not contact each other.

[0063] In the embodiment of the present application, the number of the second support rods 24 is selected to be three. In other embodiments, the number of the second support rods 24 can also be selected to be other numbers greater than three. The second support rods 24 are used to support and connect the conical plate 22.

[0064] After the water enters the tank body 1, it falls to the conical plate 22, then to the cone plate 21, and then to the water distribution assembly 3. During the rising process of the gas in the water, the outer wall of the cone plate 21 can block a part of the gas, so that the atomized water in the gas is liquefied and attached to the outer wall of the cone plate 21, and then drips. The other part of the gas rises from the opening of the cone plate 21 to the inner wall of the conical plate 22, and the outer wall of the cone plate 22 can block the remaining part of the gas, so that the atomized water in the gas is liquefied and attached to the inner wall of the cone plate 22, and then drips. This reduces the loss caused by water mixed in the gas and being sucked away by the air pump.

[0065] Reference Figure 2 The water distribution assembly 3 includes a coarse cloth plate 31 and a fine cloth plate 32. The edges of the coarse cloth plate 31 and the edges of the fine cloth plate 32 are respectively fixedly connected to the inner wall of the tank body 1, and the cone cylinder plate 21 and the coarse cloth plate 31 are both arranged horizontally. There is a gap between the cone cylinder plate 21, the coarse cloth plate 31 and the fine cloth plate 32, and the cone cylinder plate 21, the coarse cloth plate 31 and the fine cloth plate 32 are arranged in sequence from top to bottom.

[0066] The rough cloth plate 31 is provided with a plurality of first water distribution holes 311, and the plurality of first water distribution holes 311 are arranged at equal intervals. The fine cloth plate 32 is provided with a plurality of second water distribution holes 321, and the plurality of second water distribution holes 321 are arranged at equal intervals. The diameter of the first water distribution holes 311 is greater than the diameter of the second water distribution holes 321, and the number of the first water distribution holes 311 is less than the number of the second water distribution holes 321.

[0067] When water falls from the conical plate 21 onto the coarse cloth plate 31, the first water distribution holes 311 on the coarse cloth plate 31 distribute the water flow evenly for the first time, and then the second water distribution holes 321 on the fine cloth plate 32 distribute the water flow evenly for the second time, so that the water flow falls evenly on the packing assembly 4.

[0068] Reference Figure 2 and Figure 3 The filler assembly 4 includes a first support member 41 and a composite filler 42. The first support member 41 is disposed on the inner wall of the tank body 1, and the first support member 41 is located on the side of the fine cloth plate 32 away from the coarse cloth plate 31. The composite filler 42 is cylindrical, and the composite filler 42 is placed on the first support member 41, and a gap is left between the composite filler 42 and the fine cloth plate 32.

[0069] The first support member 41 includes a support ring plate 411 and a plurality of reinforcing ribs 412. The outer edge of the support ring plate 411 is fixedly connected to the inner wall of the tank body 1, and the support ring plate 411 is arranged horizontally. The reinforcing ribs 412 are fixedly connected to the connection between the support ring plate 411 and the inner wall of the tank body 1, and the reinforcing ribs 412 are located on the side of the support ring plate 411 away from the fine cloth plate 32, and the plurality of reinforcing ribs 412 are arranged at equal intervals along the central axis of the support ring plate 411. The composite filler 42 is placed on the support ring plate 411.

[0070] The composite filler 42 includes at least one limiting tie 421, a plurality of corrugated plates 422 and a plurality of isolation plates 423. The edges of the plurality of corrugated plates 422 and the plurality of isolation plates 423 abut against the support ring plate 411. The plurality of corrugated plates 422 and the plurality of isolation plates 423 abut against each other, a single corrugated plate 422 is located between two adjacent isolation plates 423, and a single isolation plate 423 is located between two adjacent corrugated plates 422. The limiting tie 421 is sleeved and tied on the plurality of corrugated plates 422 and the plurality of isolation plates 423. A plurality of water leakage cavities 424 are formed between the corrugated plates 422 and the isolation plates 423, and water can leak through the water leakage cavities 424 to the gas distribution assembly 5.

[0071] Reference Figure 2 and Figure 4 The gas distribution assembly 5 includes a distribution plate 51 and a distribution annular tube 52. The edge of the distribution plate 51 is fixedly connected to the inner wall of the tank body 1, and a plurality of distribution holes 511 are evenly spaced on the distribution plate 51, and a gap is left between the distribution plate 51 and the support ring plate 411. The outer edge side wall of the distribution annular tube 52 is fixedly connected to the inner wall of the tank body 1, and the distribution annular tube 52 is located on the side of the distribution plate 51 away from the support ring plate 411. There is a gap between the distribution annular tube 52 and the distribution plate 51, and a plurality of gas outlet holes 521 are opened on one side of the inner edge of the distribution annular tube 52. The plurality of gas outlet holes 521 are evenly spaced along the central axis of the distribution annular tube 52, and the distribution annular tube 52 and the inert gas inlet 14 are connected.

[0072] After the inert gas enters the distribution annular tube 52 from the inert gas inlet 14, the inert gas is ejected from the gas outlet 521, and then is guided by the distribution holes 511 to evenly enter the leaking cavity 424, thereby reducing the partial pressure of the gas in the water through the inert gas, thereby improving the degassing effect. Similarly, water can also fall to the heating component 6 through the distribution holes 511.

[0073] Reference Figure 2 and Figure 5 The heating assembly 6 includes a plurality of second support members 61, a plurality of semi-circular disks 62 and a plurality of heating coils 63. The semi-circular disk 62 is a coiled semi-circular plate, the heating coil 63 is a coiled round tube, and the diameter of the semi-circular disk 62 is greater than the diameter of the heating coil 63. The plurality of second support members 61 are stacked on the inner wall of the tank body 1 at equal intervals, the outer walls of the plurality of semi-circular disks 62 are welded one-to-one to the plurality of second support members 61, and the plurality of semi-circular disks 62 are staggered. The plurality of heating coils 63 are welded one-to-one to the bottom of the inner wall of the plurality of semi-circular disks 62. In the embodiment of the present application, the semi-circular disks 62 and the heating coils 63 are both made of copper metal with good thermal conductivity.

[0074] The second support member 61 includes a connecting circular plate 611 and a plurality of supporting square tubes 612. One end of the supporting square tube 612 is fixedly connected to the inner wall of the tank body 1, and the other end is fixedly connected to the side wall of the connecting circular plate 611. The plurality of supporting square tubes 612 are arranged at equal intervals along the central axis of the connecting circular plate 611. The outer side wall of the semicircular arc disk 62 is welded to the plurality of supporting square tubes 612 of the single second support member 61.

[0075] The opening at the outer edge of the topmost heating coil 63 is connected to an industrial waste heat inlet pipe 64, which is penetrated from the side wall of the tank body 1. The part through which the industrial waste heat inlet pipe 64 is penetrated can be connected to the equipment that generates industrial waste heat. At the same time, the industrial waste heat inlet pipe 64 is provided with a heat preservation and heat insulation layer 641, which is used to reduce the heat exchange between the industrial waste heat inlet pipe 64 and the external air, thereby reducing the loss of waste heat during the transportation process.

[0076] The opening at the center of the topmost heating coil 63 is connected to the opening at the center of the lower heating coil 63, and the connection is penetrated by a connecting circular plate 611. The openings at the outer edges of the adjacent heating coils 63 are connected to the openings at the outer edges of the lower heating coils 63. The opening at the outer edge of the bottommost heating coil 63 is connected to an outlet pipe 65, which is penetrated by the side wall of the tank body 1 and can be connected to wastewater or waste gas treatment equipment.

[0077] Reference Figure 2 and Figure 5The thermal insulation layer 641 includes a polyurethane thermal insulation layer 6411 and a polyethylene protective layer 6412. The polyurethane thermal insulation layer 6411 is coated on the portion of the industrial waste heat inlet pipe 64 outside the tank body 1, and the polyethylene protective layer 6412 is coated on the polyurethane thermal insulation layer 6411. The polyurethane thermal insulation layer 6411 is foamed from a rigid polyurethane foam plastic stock solution, and the polyethylene protective layer 6412 is selected from polyethylene plastic. The polyurethane thermal insulation layer 6411 is used to insulate the industrial waste heat inlet pipe 64, and the polyethylene protective layer 6412 is used to provide external protection for the polyurethane thermal insulation layer 6411.

[0078] After the water falls from the distribution hole 511, it can fall onto the topmost semicircular plate 62 or the heating coil 63, and the water can be temporarily stored in the recessed portion where the semicircular plate and the heating coil 63 are connected. The industrial waste heat heats the heating coil 63, and the heating coil 63 heats the semicircular plate 62 through heat conduction, thereby heating the water. As the amount of water increases, the water will overflow and move to the semicircular plate or the heating coil 63 of the next layer, thereby heating the water until the water flows out of the water outlet 12 and enters the thermal equipment.

[0079] The implementation principle of the vacuum air stripper of the embodiment of the present application is: in the process of removing gas from water, the partial pressure of gas in the water in the tank 1 is directly reduced by vacuuming, so that the gas is removed from the water. Then, the water after the gas is removed is heated by industrial waste heat, and finally the water is discharged.

[0080] In this process, the use of vacuum pumps greatly reduces energy consumption compared to steam. At the same time, the use of industrial waste heat can effectively reuse resources, thereby effectively reducing energy consumption when removing gas from water.

[0081] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vacuum air stripper, characterized in that: It comprises a tank body (1), a filler assembly (4) and a heating assembly (6) arranged in the tank body (1); The top and bottom of the tank body (1) are respectively provided with a water inlet (11) and a water outlet (12); a side wall of the tank body (1) is provided with a vacuum port (13), and the vacuum port (13) is used to connect to a vacuum pump; the packing assembly (4) is located below the vacuum port (13); and the heating assembly (6) is located below the packing assembly (4); The heating assembly (6) comprises a plurality of semi-circular disks (62) stacked and arranged in a tank body (1) and a plurality of heating coils (63) arranged one-to-one on the plurality of semi-circular disks (62); the semi-circular disks (62) are coiled semi-circular plates, the heating coils (63) are coiled round tubes, the diameter of the heating coils (63) is smaller than the diameter of the semi-circular disks (62) and the heating coils (63) are arranged in a recessed position of the semi-circular disks (62); The plurality of heating coils (63) are connected in sequence, and one of the heating coils (63) is connected to an industrial waste heat inlet pipe (64), and another heating coil (63) is connected to an outlet pipe (65), the industrial waste heat inlet pipe (64) and the outlet pipe (65) are respectively passed through the tank body (1), and the industrial waste heat inlet pipe (64) is used to be connected to equipment that generates industrial waste heat; It also includes a water distribution assembly (3) located between the filler assembly (4) and the vacuum port (13); The water distribution assembly (3) comprises a coarse cloth plate (31) and a fine cloth plate (32) which are stacked from top to bottom in the tank body (1); the coarse cloth plate (31) is provided with a plurality of first water distribution holes (311); the fine cloth plate (32) is provided with a plurality of second water distribution holes (321); the diameter of the first water distribution holes (311) is greater than the diameter of the second water distribution holes (321); It also includes a gas-water separation component (2) located between the coarse cloth plate (31) and the vacuum port (13); The gas-water separation component (2) comprises a conical plate (21) arranged on the inner wall of the tank body (1) and a conical plate (22) arranged on the conical plate (21); the conical tip of the conical plate (22) faces upward, the edge of the end with a smaller opening of the conical plate (21) faces downward and is located below the conical plate (22), and a gap is left between the conical plate (21) and the conical plate (22); Also included is a gas distribution assembly (5) located between the filler assembly (4) and the heating coil (63); The gas distribution assembly (5) comprises a distribution plate (51) and a distribution annular tube (52) which are arranged on the inner wall of the tank body (1) from top to bottom; a plurality of distribution holes (511) are provided on the distribution plate (51); a plurality of gas outlet holes (521) are provided on the inner edge of the distribution annular tube (52) at equal intervals along the central axis; The tank body (1) is also provided with an inert gas inlet (14), the inert gas inlet being connected to the distribution annular pipe (52), and the inert gas inlet (14) being connected to a solenoid valve (142).

2. The vacuum stripper according to claim 1, characterized in that: The heating component (6) further comprises a plurality of second support members (61) arranged in the tank body (1), the second support members (61) comprising a connecting circular plate (611) and a plurality of supporting square tubes (612); One end of the supporting square tube (612) is connected to the inner wall of the tank body (1), and the other end is connected to the connecting circular plate (611); the semi-circular arc disk (62) is arranged on a plurality of supporting square tubes (612).

3. The vacuum stripper according to claim 1, characterized in that: The portion of the industrial waste heat inlet pipe (64) located outside the tank body (1) is sheathed with a thermal insulation layer (641); The thermal insulation layer (641) comprises a polyurethane thermal insulation layer (6411) sleeved on the industrial waste heat inlet pipe (64) and a polyethylene protective layer (6412) sleeved on the polyurethane thermal insulation layer (6411).

4. The vacuum stripper according to claim 1, characterized in that: The filler assembly (4) comprises a cylindrical composite filler (42) arranged in the tank body (1); the composite filler (42) comprises at least one limiting tie (421), a plurality of corrugated plates (422) and a plurality of isolation plates (423); The plurality of corrugated plates (422) and the plurality of isolation plates (423) are arranged in a staggered manner, the limiting tie bands (421) are tied to the plurality of corrugated plates (422) and the plurality of isolation plates (423), and a water leakage cavity (424) is formed between adjacent corrugated plates (422) and isolation plates (423).

5. The vacuum stripper according to claim 4, characterized in that: The packing assembly (4) further comprises a first support member (41), the first support member (41) comprising a support ring plate (411) arranged in the tank body (1), and the edges of the corrugated plate (422) and the isolation plate (423) are arranged on the support ring plate (411).

6. The vacuum stripper according to claim 1, characterized in that: The gas-water separation assembly (2) further comprises a plurality of first support rods (23); one end of the first support rod (23) is arranged on the inner wall of the tank body (1), and the other end is arranged on the outer wall of the conical cylinder plate (21); the plurality of first support rods (23) are arranged at equal intervals along the central axis of the conical cylinder plate (21).

7. The vacuum stripper according to claim 1, characterized in that: The gas-water separation component (2) further comprises a plurality of second support rods (24); one end of the second support rod (24) is arranged on the inner wall of the conical cylinder plate (21), and the other end is arranged on the inner wall of the conical plate (22); the plurality of second support rods (24) are arranged at equal intervals along the central axis of the conical plate (22).

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