Sealed environment-friendly falling film absorption tower

Abstract

The utility model belongs to the technical field of falling film absorption, and particularly relates to a sealed environment-friendly falling film absorption tower which comprises a gas-liquid mixing layer, a liquid collecting layer is arranged at the lower end of the gas-liquid mixing layer, and an infusion pump is fixedly connected to one side of the liquid collecting layer; a supporting plate is fixedly connected to the interior of the liquid collecting layer, a liquid pumping assembly is arranged above the supporting plate and comprises a liquid storage tank, the liquid storage tank is located in the liquid collecting layer and vertically installed in a sliding mode, a sleeving outer pipe is fixedly connected to the middle of the supporting plate, and a sleeving inner pipe is vertically installed in the sleeving outer pipe in a sliding mode; the position, corresponding to the sleeved inner pipe, of the liquid storage tank is in threaded connection with a filter valve, and the lower end of the filter valve is inserted into the sleeved inner pipe. According to the automatic liquid extraction device, liquid in the liquid storage tank can be automatically extracted, manual intervention is not needed, and meanwhile the situation that a water pump extracts gas in the liquid storage tank can be avoided; meanwhile, due to the detachable design of the liquid storage tank, residues in the liquid storage tank can be cleaned more easily.

Description

TECHNICAL FIELD

[0001] The utility model belongs to falling film absorption technical field, concretely relates to sealed environmental protection's falling film absorption tower. BACKGROUND

[0002] Sealed environmental protection's falling film absorption tower is a kind of equipment commonly used in gas absorption, is widely used in environmental protection field, especially in waste gas treatment and gas absorption process (such as desulfurization, denitrification, absorption carbon dioxide etc.), its core feature is through liquid film flow and gas contact, thereby realizing the absorption or reaction of harmful components in gas.

[0003] The prior art has the following problems:

[0004] The existing sealed environmental protection's falling film absorption tower is generally provided with a liquid storage tank for storing acidic solution, and a water pump is used to continuously extract the water solution during the recovery of the water solution, which can extract the air in the tower when the liquid in the tower is less, and the air generally contains various substances, which not only pollutes the environment, but also is toxic and harmful, and the traditional falling film absorption tower needs to control the on-off of the liquid extraction pump circuit by manual control to control the extraction of the solution, which is more troublesome, and the liquid storage tank located below the tower often produces some residues, which is difficult to clean due to its internal location. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing sealed environmental protection's falling film absorption tower, which can realize automatic extraction of liquid in the liquid storage tank without manual intervention, and can also avoid the extraction of gas in the liquid storage tank by water pump, and the detachable design of the liquid storage tank also makes it easier to clean the internal residues.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] The sealed environmental protection's falling film absorption tower comprises: a gas-liquid mixing layer, a liquid collecting layer is arranged at the lower end of the gas-liquid mixing layer, and a liquid extraction pump is fixedly connected to one side of the liquid collecting layer;

[0008] A support plate is fixedly connected to the inside of the liquid collecting layer, an liquid extraction assembly is arranged at the upper position of the support plate, the liquid extraction assembly comprises a liquid storage tank, the liquid storage tank is vertically slidably installed inside the liquid collecting layer, a sleeving outer pipe is fixedly connected to the middle position of the support plate, a sleeving inner pipe is vertically slidably installed in the inside of the sleeving outer pipe, a filter valve is threadedly connected to the position of the sleeving inner pipe corresponding to the liquid storage tank, the lower end of the filter valve is insertedly installed with the sleeving inner pipe, the liquid storage tank and the supporting plate are horizontally slidably installed, the upper end of the sleeving inner pipe is fixedly connected with a supporting plate, and the supporting plate and the support plate are fixedly connected with a liquid storage spring.

[0009] The bottom of the supporting plate is fixedly connected with an upper electric contact ring, the upper electric contact ring is located outside the inner sleeve, the top of the supporting plate is fixedly connected with a lower electric contact ring below the position corresponding to the upper electric contact ring, and the lower electric contact ring is located outside the outer sleeve.

[0010] The top of the supporting plate is fixedly connected with a sliding strip, the liquid storage tank is provided with a height sliding groove at the position corresponding to the sliding strip, and the liquid storage tank is slidably installed with the sliding strip through the height sliding groove.

[0011] One side of the outer sleeve is fixedly connected with a first liquid suction pipe, the upper end of the first liquid suction pipe is fixedly connected with a second liquid suction pipe, and the second liquid suction pipe is communicated with the liquid suction pump.

[0012] One side of the gas-liquid mixing layer is provided with a liquid inlet and a gas outlet, the other side of the top of the gas-liquid mixing layer is provided with a gas recovery port, and one side of the liquid suction pump is provided with a liquid outlet.

[0013] One side of the liquid collection layer is rotatably connected with a sealing door.

[0014] The technical effects achieved by the utility model are as follows:

[0015] The utility model can realize automatic extraction of liquid in the liquid storage tank without manual intervention, and can avoid water pump extraction of gas in the liquid storage tank.

[0016] The utility model also adopts the detachable design of the sliding strip and the height sliding groove of the liquid storage tank, so that the internal residue can be cleaned more easily. DRAWINGS

[0017] Figure 1 It is the overall structure schematic view of the utility model;

[0018] Figure 2 It is the structure schematic view of the liquid collection layer in the utility model;

[0019] Figure 3 It is the internal structure schematic view of the liquid collection layer in the utility model;

[0020] Figure 4 It is the structure sectional view of the liquid collection layer in the utility model;

[0021] Figure 5 It is the enlarged view of the structure of the liquid collection layer in the utility model;

[0022] Figure 6 It is the structure schematic view of the liquid suction assembly in the utility model;

[0023] Figure 7 It is the disassembly structure schematic view of the liquid storage tank in the utility model;

[0024] Figure 8 is the structure section view of the liquid storage tank in the utility model;

[0025] Figure 9 is the structure dismounting view of the filter valve in the utility model.

[0026] In the drawings, the component list represented by each sign is as follows:

[0027] 1, liquid collection layer; 2, gas-liquid mixing layer; 101, liquid outlet; 102, sealing door; 103, liquid pumping pump; 104, supporting plate; 105, liquid pumping pipe one; 106, liquid pumping pipe two; 110, liquid pumping assembly; 111, liquid storage tank; 112, filter valve; 113, supporting plate; 114, liquid storage spring; 115, electrically upper contact ring; 116, electrically lower contact ring; 117, sleeved inner pipe; 118, sleeved outer pipe; 119, sliding bar; 1110, high-low sliding groove; 201, liquid inlet; 202, gas recovery port; 203, gas outlet. DETAILED DESCRIPTION

[0028] In order to make the purpose and advantages of the utility model more clear and obvious, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope specifically requested by the utility model.

[0029] As Figures 1-4 shown, the sealed environment-friendly falling film absorption tower comprises: a gas-liquid mixing layer 2, the lower end of the gas-liquid mixing layer 2 is provided with a liquid collection layer 1, one side of the liquid collection layer 1 is fixedly connected with a liquid pumping pump 103; one side of a sleeved outer pipe 118 is fixedly connected with a liquid pumping pipe one 105, the upper end of the liquid pumping pipe one 105 is fixedly connected with a liquid pumping pipe two 106, the liquid pumping pipe two 106 is communicated with the liquid pumping pump 103; one side of the top and bottom of the gas-liquid mixing layer 2 is provided with a liquid inlet 201 and a gas outlet 203, the other side of the top of the gas-liquid mixing layer 2 is provided with a gas recovery port 202, one side of the liquid pumping pump 103 is provided with a liquid outlet 101.

[0030] Wherein, when falling film absorption is carried out, the liquid inlet 201 discharges liquid into the gas-liquid mixing layer 2, the gas outlet 203 discharges gas into the gas-liquid mixing layer 2, the gas is recovered upward through the gas recovery port 202, at this time, the liquid in the gas-liquid mixing layer 2 is recovered through the liquid collection layer 1 and the liquid outlet 101, and the gas and the liquid are fully mixed in the gas-liquid mixing layer 2 during the period.

[0031] Referring to the drawings Figures 4-7The inside of the liquid collecting layer 1 is fixedly connected with a support plate 104, and the upper position of the support plate 104 is provided with a liquid pumping assembly 110, the liquid pumping assembly 110 comprises a liquid storage tank 111, the liquid storage tank 111 is vertically slidably installed inside the liquid collecting layer 1, the middle position of the support plate 104 is fixedly connected with a sleeved outer pipe 118, the inside of the sleeved outer pipe 118 is vertically slidably installed with a sleeved inner pipe 117, the position of the liquid storage tank 111 corresponding to the sleeved inner pipe 117 is threadedly connected with a filter valve 112, the lower end of the filter valve 112 is insertedly installed with the sleeved inner pipe 117, the liquid storage tank 111 is slidably installed with a supporting plate 113, the upper end of the sleeved inner pipe 117 is fixedly connected with the supporting plate 113, and the supporting plate 113 is fixedly connected with the support plate 104 and the liquid storage spring 114; the bottom of the supporting plate 113 is fixedly connected with an electric upper contact ring 115, the electric upper contact ring 115 is located outside the sleeved inner pipe 117, and the top of the support plate 104 is fixedly connected with an electric lower contact ring 116 corresponding to the position below the electric upper contact ring 115, and the electric lower contact ring 116 is located outside the sleeved outer pipe 118.

[0032] According to the above structure, when the solution in the liquid storage tank 111 accumulates to a certain amount, the liquid storage tank 111 will be pressed downward under the action of gravity to cause elastic deformation of the liquid storage spring 114, at this time, the liquid storage tank 111 moves downward with the supporting plate 113, and in the process of continuous descent, the sleeved inner pipe 117 moves to the inside of the sleeved outer pipe 118, and finally the electric upper contact ring 115 and the electric lower contact ring 116 are in contact, and the two form a closed path to transmit an electric signal to the liquid pumping pump 103, at this time, the liquid pumping pump 103 is started to pump out the liquid accumulated in the inside of the liquid storage tank 111 through the sleeved outer pipe 118, and under the control of the PLC, the liquid pumping pump 103 will continue to pump for a period of time when the electric upper contact ring 115 and the sleeved outer pipe 118 are separated, so that the liquid in the liquid storage tank 111 is pumped to a smaller amount, preventing the liquid storage tank 111 and the electric upper contact ring 115 and the electric lower contact ring 116 from being in contact too frequently; the filter valve 112 can filter the liquid.

[0033] Referring to the drawings Figures 7-9 One side of the liquid collecting layer 1 is rotatably connected with a sealing door 102; the top of the supporting plate 113 is fixedly connected with a sliding bar 119, the liquid storage tank 111 is provided with a high-low sliding groove 1110 corresponding to the position of the sliding bar 119, and the liquid storage tank 111 is slidably installed with the sliding bar 119 through the high-low sliding groove 1110, and the depths of the two ends of the high-low sliding groove 1110 are different.

[0034] According to the above structure, when the inside of the liquid storage tank 111 needs to be cleaned, the sealing door 102 can be rotated to open the liquid collection layer 1 and pull out the liquid storage tank 111 for cleaning, wherein the high-low chute 1110 is divided into two sections, one section is deeper, and the other section is shallower, in the process of pulling the liquid storage tank 111, the deeper section of the high-low chute 1110 is slidingly installed with the slide bar 119, and in the sliding process, the shallower section, in the process from deep to shallow, the height of the liquid storage tank 111 is raised so that the filter valve 112 does not contact the supporting plate 113, and when the shallower section of the high-low chute 1110 is in contact with the slide bar 119, the shallower section of the high-low chute 1110 is coupled with the slide bar 119, at this time, the liquid storage tank 111 moves downward so that the filter valve 112 is inserted with the sleeve inner tube 117.

[0035] The working principle of the utility model is as follows: when falling film absorption is carried out, the liquid inlet 201 discharges liquid into the gas-liquid mixing layer 2, the gas outlet 203 discharges gas into the gas-liquid mixing layer 2, the gas is recycled upwards through the gas recycling port 202, at this time, the liquid in the gas-liquid mixing layer 2 passes through the liquid collection layer 1, when the solution accumulated in the liquid storage tank 111 reaches a certain amount, the liquid storage tank 111 is pressed downward under the influence of gravity to cause elastic deformation of the liquid storage spring 114, at this time, the liquid storage tank 111 and the supporting plate 113 move downward, in the process of continuous descent, the sleeve inner tube 117 moves into the sleeve outer tube 118, finally, the upper electrical contact ring 115 contacts the lower electrical contact ring 116, the two form a closed path to transmit electrical signals to the liquid pumping pump 103, at this time, the liquid pumping pump 103 is started to pump out the liquid accumulated in the liquid storage tank 111 through the sleeve outer tube 118, under the control of the PLC, when the upper electrical contact ring 115 is separated from the sleeve outer tube 118, the liquid pumping pump 103 will continue to pump for a period of time, so that the liquid in the liquid storage tank 111 is pumped to a smaller amount, preventing the liquid storage tank 111 from contacting the upper electrical contact ring 115 and the lower electrical contact ring 116 too frequently; the filter valve 112 can filter the liquid, and then the liquid is recycled through the liquid outlet 101, during which the gas and the liquid are fully mixed in the gas-liquid mixing layer 2.

[0036] The above is only the preferred embodiment of the utility model, it should be pointed out that for ordinary technical personnel in the prior art, without departing from the principle of the utility model, a number of improvements and refinements can be made, which should also be regarded as the protection scope of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A sealed, environmentally friendly falling film absorption column, characterized in that Include: Gas-liquid mixing layer (2), the lower end of the gas-liquid mixing layer (2) is provided with a liquid collecting layer (1), one side of the liquid collecting layer (1) is fixedly connected with a liquid pumping pump (103); The inside of the liquid collecting layer (1) is fixedly connected with a supporting plate (104), the upper position of the supporting plate (104) is provided with a liquid pumping assembly (110), the liquid pumping assembly (110) comprises a liquid storage tank (111), the liquid storage tank (111) is vertically slidingly installed inside the liquid collecting layer (1), the middle position of the supporting plate (104) is fixedly connected with a sleeving outer pipe (118), the inside of the sleeving outer pipe (118) is vertically slidingly installed with a sleeving inner pipe (117), the position of the liquid storage tank (111) corresponding to the sleeving inner pipe (117) is threadedly connected with a filter valve (112), the lower end of the filter valve (112) is insertedly installed with the sleeving inner pipe (117), the liquid storage tank (111) is slidingly installed with a supporting plate (113), the upper end of the sleeving inner pipe (117) is fixedly connected with the supporting plate (113), the supporting plate (113) and the supporting plate (104) are fixedly connected with a liquid storage spring (114).

2. The sealed, environmentally friendly falling film absorption column of claim 1, wherein: The bottom of the supporting plate (113) is fixedly connected with an electrically upper contact ring (115), the electrically upper contact ring (115) is located outside the sleeving inner pipe (117), the top of the supporting plate (104) is fixedly connected with an electrically lower contact ring (116) corresponding to the position below the electrically upper contact ring (115), and the electrically lower contact ring (116) is located outside the sleeving outer pipe (118).

3. The sealed, environmentally friendly falling film absorption column of claim 1, wherein: The top of the supporting plate (113) is fixedly connected with a sliding bar (119), the liquid storage tank (111) is provided with a height sliding groove (1110) corresponding to the position of the sliding bar (119), and the liquid storage tank (111) is slidingly installed with the sliding bar (119) through the height sliding groove (1110). The depths of the two ends of the height sliding groove (1110) are different.

4. The sealed, environmentally friendly falling film absorption column of claim 1, wherein: One side of the sleeving outer pipe (118) is fixedly connected with a liquid pumping pipe one (105), the upper end of the liquid pumping pipe one (105) is fixedly connected with a liquid pumping pipe two (106), and the liquid pumping pipe two (106) is communicated with the liquid pumping pump (103).

5. The sealed, environmentally friendly falling film absorption column of claim 1, wherein: One side of the gas-liquid mixing layer (2) is provided with a liquid inlet (201) and an air outlet (203), the other side of the top end of the gas-liquid mixing layer (2) is provided with a gas recovery port (202), and one side of the liquid pumping pump (103) is provided with a liquid outlet (101).

6. The sealed, environmentally friendly falling film absorption column of claim 1, wherein: One side of the liquid collecting layer (1) is rotatably connected with a sealing door (102).

Images