Adsorption and desorption device for macroporous resin

Abstract

The utility model relates to the technical field of absorption and desorption devices, in particular to a macroporous resin absorption and desorption device which comprises a cylinder, elliptical heads are fixedly connected to the top and the bottom of the cylinder, a four-way pipeline is fixedly connected to one end of each elliptical head, a discharge port and a spray liquid inlet are formed in the outer surface of the cylinder, and the discharge port is communicated with the spray liquid inlet. A spraying liquid distributor is fixedly connected to the interior of the spraying liquid inlet, and a bottom support and a top support are fixedly connected to the interior of the barrel. The device has the advantages that after adsorption resin is desorbed and organic matters adsorbed in the adsorption resin are basically completely desorbed, the spiral nozzles uniformly distributed on the spray liquid distributor spray cooling water to be cooled to a set temperature, the barrel body is regenerated for later use and the adsorption resin does not need to be replaced under the condition that a factory does not need to be shut down until adsorbate completely loses efficacy, and the device is simple in structure and convenient to operate. And therefore, the effects of saving funds and improving the utilization rate of the adsorption resin are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of absorption and desorption devices, in particular to an absorption and desorption device for macroporous resin. Background Art

[0002] A macroporous resin adsorption and desorption device for VOCs treatment is disclosed in Chinese patent CN215876786U. When the macroporous resin reaches saturation, the staff can replace the macroporous resin, thereby improving the staff's work efficiency and ensuring the normal operation of the main body of the adsorption and desorption device. However, while solving the problem, the macroporous resin adsorption and desorption device for VOCs treatment needs to replace a new adsorbent to work normally. Replacing a new adsorbent is a waste of resources and is not conducive to capital planning. Utility Model Content

[0003] In order to improve the utilization rate of adsorbent and reduce capital consumption, the utility model provides an adsorption and desorption device for macroporous resin.

[0004] The utility model provides a macroporous resin adsorption and desorption device adopts the following technical solution:

[0005] A macroporous resin adsorption and desorption device comprises a cylinder, the top and bottom of the cylinder are fixedly connected with elliptical heads, one end of the two elliptical heads are fixedly connected with a four-way pipe, the outer surface of the cylinder is provided with a discharge port and a spray liquid inlet, the inside of the spray liquid inlet is fixedly connected with a spray liquid distributor, the inside of the cylinder is fixedly connected with a bottom support and a top support, the top of the bottom support is paved with a sand cushion layer, the space between the sand cushion layer and the top support is filled with adsorption resin, the spray liquid distributor is located above the top support, the bottom of the inside of the cylinder is fixedly connected with a gas distributor, one side of the gas distributor is fixedly connected to one side of the bottom support.

[0006] By adopting the above technical scheme, the waste gas is treated by gas-liquid reverse absorption. The waste gas escapes upward from the bottom of the cylinder, passes through the entire adsorption resin, and the adsorption resin absorbs organic matter in the waste gas and finally leaves from the top of the cylinder. The water vapor moves downward from the top of the cylinder and leaves from the bottom of the cylinder. The spiral nozzle on the spray liquid distributor sprays cooling water to cool it to the set temperature, and then air and nitrogen are introduced to drain the adsorption resin. The cylinder is regenerated and ready for use. There is no need to replace the adsorption resin until the adsorbent is completely ineffective. Only then does it need to be replaced with a new adsorption resin, which is beneficial to saving money and improving the utilization rate of the adsorption resin.

[0007] Preferably, the bottom support includes a lower grid, several support rings and a support plate, the bottom of the lower grid is fixedly connected to the top of the support plate through several support rings, the gas distributor is located on the top of the support plate, and the top of the lower grid is fixedly connected with an alloy mesh.

[0008] Preferably, the top support comprises an upper grille, the bottom of the upper grille is fixedly connected to a plurality of grille supports, and the top of the upper grille is fixedly connected to a stainless steel mesh.

[0009] By adopting the above technical solution, the bottom support and the top support are protected by the alloy mesh and the stainless steel mesh respectively.

[0010] Preferably, a plurality of spiral nozzles are fixedly connected inside the spray liquid distributor.

[0011] By adopting the above technical solution, the cleaning water is evenly blasted through the spiral nozzle.

[0012] Preferably, the gas distributor comprises a plane and a curved surface, the outer surface of the plane and the bottom of the curved surface are fixedly connected, and through holes penetrate the plane and the curved surface.

[0013] By adopting the above technical solution, the exhaust gas is evenly distributed through the through holes and escapes upward from the plane.

[0014] Preferably, a baffle is fixedly connected to the bottom of one of the four-way pipes, and a water vapor inlet and a desorbed water vapor outlet are respectively provided at one end of the two four-way pipes.

[0015] By adopting the above technical solution, the exhaust gas escapes upward from the bottom of the cylinder, and the water vapor sinks downward from the top of the cylinder.

[0016] Preferably, a manhole, a thermocouple connecting sleeve, an explosion vent and a pressure measuring port are fixedly connected to the top of one of the elliptical heads, and an explosion-proof thermocouple is fixedly connected inside the thermocouple connecting sleeve.

[0017] By adopting the above technical solution, the explosion vent and the pressure measuring port can be used to avoid excessive temperature and pressure inside the cylinder.

[0018] Preferably, the inner wall and the outer wall of the cylinder are both made of aluminum, and a heat-insulating material is fixedly connected between the inner wall and the outer wall of the cylinder.

[0019] By adopting the above technical solution, the aluminum skin is economical and affordable, and the interlayer insulation material can prevent excessive heat exchange between the cylinder and the outside world, thereby avoiding the waste of steam.

[0020] In summary, the utility model has the following beneficial technical effects:

[0021] 1. The device is provided with two four-way pipes. The four-way pipe above the cylinder is used to inject water vapor, air, nitrogen and other draining gases and discharge waste gas. The four-way pipe below the cylinder is used to inject waste gas to be absorbed, discharge waste liquid, and discharge desorbed water vapor. Water vapor is injected into the cylinder until the organic matter adsorbed in the adsorption resin is basically resolved. Then, the spiral nozzle on the spray liquid distributor sprays cooling water to cool it to the set temperature, and then air and nitrogen are introduced to drain the adsorption resin. The adsorption resin is desorbed. Without stopping the factory, the cylinder is regenerated and ready for use. There is no need to replace the adsorption resin until the adsorbent is completely ineffective. It is necessary to replace the new adsorption resin, which is beneficial to saving money and improving the utilization rate of the adsorption resin.

[0022] 2. The device is provided with a spray liquid distributor, and water vapor is injected into the cylinder to provide energy for the desorption of the adsorption resin. After the organic matter adsorbed in the adsorption resin is basically desorbed completely, cooling water is sprayed out by the spiral nozzles evenly distributed on the spray liquid distributor to cool it to the set temperature, thereby cleaning the adsorption resin while cooling the inside of the cylinder to avoid overheating of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a macroporous resin adsorption and desorption device of the utility model;

[0024] Figure 2 yes Figure 1 The cross-sectional view along the AA direction;

[0025] Figure 3 yes Figure 1 The cross-sectional view along the BB direction;

[0026] Figure 4 yes Figure 2 A magnified schematic diagram of the local structure at C in the middle;

[0027] Figure 5 yes Figure 2 A magnified schematic diagram of the local structure at D in the middle;

[0028] Figure 6 It is a structural schematic diagram of a spray liquid distributor in a macroporous resin adsorption and desorption device of the utility model;

[0029] Figure 7 The utility model is a schematic structural diagram of a gas distributor in a macroporous resin adsorption and desorption device.

[0030] Description of reference numerals:

[0031] 1. Four-way pipe; 2. Elliptical head; 3. Support ring; 4. Lower grid; 5. Discharge port;

[0032] 6. Cylinder; 7. Mounting bracket; 8. Grille support; 9. Upper grille; 10. Stainless steel mesh;

[0033] 11. baffle; 12. water vapor inlet; 13. spray liquid distributor; 14. adsorption resin;

[0034] 15. Sand cushion layer; 16. Support plate; 17. Gas distributor; 18. Desorption water vapor outlet;

[0035] 19. Manhole; 20. Explosion-proof thermocouple; 21. Thermocouple connecting sleeve; 22. Explosion vent;

[0036] 23. Thermal insulation material; 24. Aluminum sheet; 25. Alloy mesh; 26. Pressure measuring port; 27. Spiral nozzle. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-7 The utility model is described in further detail.

[0038] The utility model embodiment discloses a macroporous resin adsorption and desorption device.

[0039] Reference Figure 1 , 2 3, comprising a cylinder 6, the top and bottom of the cylinder 6 are fixedly connected with an elliptical head 2, one end of the two elliptical heads 2 are fixedly connected with a four-way pipe 1, the four-way pipe 1 above the cylinder 6 is injected with water vapor, air, nitrogen and other draining gases and exhaust gas, the four-way pipe 1 below the cylinder 6 is injected with exhaust gas to be absorbed, exhaust liquid, and desorbed water vapor, the outer surface of the cylinder 6 is provided with a discharge port 5 and a spray liquid inlet, after the adsorption resin completely fails and can no longer be desorbed, it can leave the inside of the cylinder 6 through the discharge port 5, the inside of the spray liquid inlet is fixedly connected with a spray liquid distributor 13, after desorption is completed, sandblasting and cleaning water are used through the spray liquid distributor 13 to clean the adsorption resin 14 and the cylinder The inside of the cylinder 6, or the spray liquid distributor 13 is sandblasted with other reagents to be added. The inside of the cylinder 6 is fixedly connected with a bottom support and a top support. The top of the bottom support is paved with a sand cushion layer 15. The sand cushion layer 15 is made of gravel or quartz sand and is used to filter water vapor and cleaning water. At the same time, it filters solid particles carried in the exhaust gas to avoid the mixing of impurities with the adsorption resin 14. The adsorption resin 14 is filled between the sand cushion layer 15 and the top support. The adsorption resin 14 is a macroporous resin that adsorbs organic matter in the exhaust gas. The spray liquid distributor 13 is located above the top support. The bottom of the inside of the cylinder 6 is fixedly connected with a gas distributor 17, and one side of the gas distributor 17 is fixedly connected to one side of the bottom support.

[0040] Reference Figure 2 , 35. The bottom support includes a lower grille 4, a plurality of support rings 3 and a support plate 16. The support rings 3 and the support plate 16 support and reinforce the lower grille 4. The bottom of the lower grille 4 is fixedly connected to the top of the support plate 16 through a plurality of support rings 3. The gas distributor 17 is located on the top of the support plate 16. The top of the lower grille 4 is fixedly connected with an alloy mesh 25. The alloy mesh 25 protects the top of the lower grille 4 to prevent the sand cushion layer 15 from moving under the impact of water vapor and exhaust gas, thereby avoiding wear of the lower grille 4.

[0041] Reference Figure 2 , 3 4. The top support includes an upper grille 9. The bottom of the upper grille 9 is fixedly connected to a plurality of grille supports 8. The grille supports 8 support and reinforce the upper grille 9. The top of the upper grille 9 is fixedly connected to a stainless steel mesh 10. The stainless steel mesh 10 protects the upper grille 9 to avoid excessive impact of water vapor.

[0042] Reference Figure 2 , 6 A plurality of spiral nozzles 27 are fixedly connected to the interior of the spray liquid distributor 13 , and the spiral nozzles 27 are evenly arranged, so that the spiral nozzles 27 can evenly spray cleaning water or add other solution reagents.

[0043] Reference Figure 2 , 7 The gas distributor 17 (known technology) includes a plane and a curved surface. The outer surface of the plane and the bottom of the curved surface are fixedly connected. The plane and the curved surface are penetrated by through holes. The gas enters and leaves the gas distributor 17 through the through holes. Through the gas distributor 17, the exhaust gas passes through the lower grid 4 and the sand cushion layer 15 evenly through the plane, evenly penetrates the adsorption resin 14, and finally leaves the cylinder 6 through the four-way pipe 1 at the top.

[0044] Reference Figure 2 A baffle 11 is fixedly connected to the bottom of one of the four-way pipes 1, and a water vapor inlet 12 and a desorption water vapor outlet 18 are respectively opened at one end of the two four-way pipes 1. Steam is input from the top of one of the elliptical heads 2 and output from the bottom of the other elliptical head 2, passing through the entire adsorption resin 14, providing the adsorption resin 14 with the heat required for desorption.

[0045] Reference Figure 1 , 23. A manhole 19 (known technology), a thermocouple connecting sleeve 21, an explosion vent 22 and a pressure measuring port 26 are fixedly connected to the top of one of the elliptical heads 2. The pressure inside the cylinder 6 is monitored through the pressure measuring port 26. When the pressure inside the cylinder 6 is too strong and exceeds the maximum bearing capacity, the explosion vent 22 is opened to discharge the pressure inside the cylinder 6. The manhole 19 is convenient for entering the cylinder 6, so as to maintain and update the internal upper grid 9, the spray liquid distributor 13 and other devices. The inside of the thermocouple connecting sleeve 21 is fixedly connected with an explosion-proof thermocouple 20 (known technology). The explosion-proof thermocouple 20 is used to monitor the temperature inside the cylinder 6 in real time to avoid excessive temperature inside the cylinder 6 affecting the activity of the adsorption resin 14.

[0046] Reference Figure 2 The inner wall and the outer wall of the cylinder 6 are both made of aluminum sheet 24, and a mounting bracket 7 is installed on the outer aluminum sheet 24 of the cylinder 6. The mounting bracket 7 facilitates the installation of the cylinder 6 on a fixed frame connected to the ground. A heat-insulating material 23 is fixedly connected between the inner wall and the outer wall of the cylinder 6. The heat-insulating material 23 prevents the external weather temperature from affecting the temperature inside the cylinder 6, and also prevents a large-scale heat exchange between the inside and the outside of the cylinder 6, thereby preventing the temperature from failing to reach the desorption standard of the macroporous adsorption resin 14.

[0047] The implementation principle of a macroporous resin adsorption and desorption device in the embodiment of the utility model is:

[0048] 1. The waste gas is treated by gas-liquid reverse absorption, that is, water vapor, air, nitrogen and other draining gases are injected through the four-way pipe 1 above the cylinder 6, and the waste gas is discharged, and the four-way pipe 1 below the cylinder 6 is injected into the waste gas to be absorbed, the waste liquid is discharged, and the desorbed water vapor is discharged;

[0049] 2. When the waste gas is injected into the cylinder 6 through the four-way pipe 1 below the cylinder 6, the injection of water vapor, air, nitrogen and other draining gases is stopped, so that the waste gas passes through the adsorption resin 14, and the adsorption resin 14 absorbs organic matter in the waste gas. The waste gas with organic matter removed is discharged from the four-way pipe 1 above the cylinder 6 until the four-way pipe 1 above the cylinder 6 detects that the VOCs concentration reaches a certain value, then the waste gas injection is stopped, and the adsorption of the adsorption resin 14 is stopped;

[0050] 3. At this time, water vapor is injected into the cylinder 6 until the organic matter adsorbed in the adsorption resin 14 is basically desorbed completely, and then the spiral nozzle 27 on the spray liquid distributor 13 sprays cooling water to cool to the set temperature, and then air and nitrogen are introduced to drain the adsorption resin 14, and the cylinder 6 is regenerated and ready for use;

[0051] The waste gas can enter the absorbable and desorbable cylinder 6, so that the adsorbent resin 14 in one cylinder 6 absorbs and the adsorbent resin 14 in the other cylinder 6 desorbs, so that the cylinder 6 can spontaneously complete the desorption without stopping the factory, and the adsorbent resin 14 does not need to be replaced until the adsorbent 14 is completely ineffective, which is beneficial to saving money and improving the utilization rate of the adsorbent resin 14.

[0052] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A macroporous resin adsorption and desorption device, characterized in that: The invention comprises a cylinder (6), wherein the top and bottom of the cylinder (6) are fixedly connected to elliptical heads (2), one end of each of the two elliptical heads (2) is fixedly connected to a four-way pipe (1), the outer surface of the cylinder (6) is provided with a discharge port (5) and a spray liquid inlet, the inside of the spray liquid inlet is fixedly connected to a spray liquid distributor (13), the inside of the cylinder (6) is fixedly connected to a bottom support and a top support, the top of the bottom support is paved with a sand cushion layer (15), an adsorption resin (14) is filled between the sand cushion layer (15) and the top support, the spray liquid distributor (13) is located above the top support, the bottom of the cylinder (6) is fixedly connected to a gas distributor (17), and one side of the gas distributor (17) is fixedly connected to one side of the bottom support.

2. The macroporous resin adsorption and desorption device according to claim 1, characterized in that: The bottom support comprises a lower grid (4), a plurality of support rings (3) and a support plate (16); the bottom of the lower grid (4) is fixedly connected to the top of the support plate (16) via the plurality of support rings (3); the gas distributor (17) is located on the top of the support plate (16); and the top of the lower grid (4) is fixedly connected to an alloy mesh (25).

3. The macroporous resin adsorption and desorption device according to claim 2, characterized in that: The top support comprises an upper grille (9), the bottom of the upper grille (9) is fixedly connected to a plurality of grille supports (8), and the top of the upper grille (9) is fixedly connected to a stainless steel mesh (10).

4. The macroporous resin adsorption and desorption device according to claim 3, characterized in that: A plurality of spiral spray heads (27) are fixedly connected inside the spray liquid distributor (13).

5. The macroporous resin adsorption and desorption device according to claim 4, characterized in that: The gas distributor (17) comprises a plane and a curved surface, the outer surface of the plane and the bottom of the curved surface are fixedly connected, and through holes penetrate the plane and the curved surface.

6. The macroporous resin adsorption and desorption device according to claim 5, characterized in that: A baffle (11) is fixedly connected to the bottom of one of the four-way pipes (1), and a water vapor inlet (12) and a desorbed water vapor outlet (18) are respectively provided at one end of the two four-way pipes (1).

7. The macroporous resin adsorption and desorption device according to claim 6, characterized in that: A manhole (19), a thermocouple connecting sleeve (21), an explosion vent (22) and a pressure measuring port (26) are fixedly connected to the top of one of the elliptical heads (2), and an explosion-proof thermocouple (20) is fixedly connected inside the thermocouple connecting sleeve (21).

8. The macroporous resin adsorption and desorption device according to claim 7, characterized in that: The inner wall and the outer wall of the cylinder (6) are both made of aluminum sheet (24), and a heat-insulating material (23) is fixedly connected between the inner wall and the outer wall of the cylinder (6).

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