Acid gas recovery device

Abstract

The utility model provides an acid gas recovery device, which relates to the field of solid sample testing, and comprises a recovery bottle, which is internally provided with an accommodating space and is provided with a medium inlet, a medium outlet, an acid gas inlet and an acid liquor outlet, the medium inlet is communicated with the medium outlet, and the acid gas inlet is communicated with the acid liquor outlet; the condensation pipe is positioned in the accommodating space, and the condensation pipe is communicated with the acid gas inlet and the acid liquid outlet; wherein the medium inlet is used for allowing cooling liquid to flow into the containing space, the medium outlet is used for allowing the cooling liquid to flow out of the containing space, and heat conduction can be conducted between acid gas in the condensation pipe and the cooling liquid in the containing space. The acid gas recovery device can accelerate the acid gas recovery speed and improve the acid gas recovery rate.

Description

Technical Field

[0001] The utility model relates to the field of solid sample testing, in particular to an acid gas recovery device. Background Art

[0002] During the testing of solid samples, the solid samples need to be converted into liquids using acidic liquid. Heat is generated during the reaction between the acidic liquid and the solid sample, and the acidic liquid volatilizes under the action of heat to form acidic gas. In order to reduce the impact on the external environment, the acidic gas needs to be condensed and recovered, and then the residual gas after condensation and recovery needs to be neutralized and adsorbed (for the sake of convenience, the acidic gas will be referred to as acid gas in the following). The related acid gas recovery device has a low recovery rate of acid gas, resulting in high working pressure for the subsequent neutralization treatment and increased maintenance costs of the neutralization treatment equipment. Utility Model Content

[0003] The utility model provides an acid gas recovery device, which is used to solve the technical problem of how to improve the recovery rate of acid gas and thus reduce the maintenance cost of neutralization treatment equipment.

[0004] An embodiment of the present utility model provides an acid gas recovery device, which includes: a recovery bottle having a accommodating space therein, the recovery bottle having a medium inlet, a medium outlet, an acid gas inlet and an acid liquid outlet, the medium inlet and the medium outlet being connected, and the acid gas inlet being connected to the acid liquid outlet; a condenser located in the accommodating space, and the condenser connecting the acid gas inlet and the acid liquid outlet; wherein the medium inlet is used to supply coolant to flow into the accommodating space, the medium outlet is used to supply the coolant to flow out of the accommodating space, and the acid gas in the condenser can conduct heat conduction with the coolant in the accommodating space.

[0005] In some embodiments, the medium inlet and the medium outlet are both in communication with the accommodating space, the accommodating space is used to directly accommodate the coolant, and the outer surface of the condenser tube is used to directly contact the coolant.

[0006] In some embodiments, the top of the recovery bottle has an opening, which forms the medium inlet; wherein the acid gas recovery device also includes an injection pipe, which is located above the opening and spaced a preset distance from the opening, and the injection pipe is used to inject the coolant into the accommodating space.

[0007] In some embodiments, the condenser tube extends along a curve.

[0008] In some embodiments, the acid gas recovery device further includes: a cooling pipe, the cooling pipe is located in the accommodating space and connects the medium inlet and the medium outlet, and the outer surface of the cooling pipe contacts the outer surface of the condenser pipe.

[0009] In some embodiments, the cooling tube extends in a straight line, and the condensing tube extends in a curve and is coiled around the outer surface of the cooling tube, or the condensing tube extends in a straight line, and the cooling tube extends in a curve and is coiled around the outer surface of the condensing tube.

[0010] In some embodiments, the cooling tube and the condensing tube both extend along a curve, and a ratio of a length of a portion of the condensing tube in contact with the cooling tube to a total length of the condensing tube is greater than 0.95.

[0011] In some embodiments, the acid gas recovery device also includes: an air pump, connected to the condenser, and used to suck the acid gas into the condenser; a switch valve, located at the acid liquid outlet, used to control the opening and closing of the acid liquid outlet, and when the air pump is in operation, the switch valve puts the acid liquid outlet in a closed state, and when the air pump is stopped, the switch valve puts the acid liquid outlet in an open state; wherein, the recovery bottle also includes an acid gas outlet, the acid gas outlet is connected to the condenser, and the acid gas outlet connects the condenser and the air pump.

[0012] In some embodiments, there are multiple holding bottles, and each holding bottle is arranged at intervals, the number of the condensers is the same as the number of the holding bottles, and each holding bottle contains one condenser; wherein, the number of the air pump is one, and the air pump is connected to each condenser respectively, or, the number of the air pump is the same as the number of the condenser, and each air pump is connected to each condenser respectively.

[0013] In some embodiments, the acid gas recovery device further includes: a neutralization adsorption structure located in the accommodation space; wherein the condenser pipe further includes an exhaust port, and the exhaust port is connected to the neutralization adsorption structure.

[0014] The embodiment of the present utility model provides an acid gas recovery device, which includes a recovery bottle with a holding space inside, and a condensing pipe located in the condensing space; wherein the recovery bottle has a medium inlet, a medium outlet, an acid gas inlet and an acid liquid outlet, the condensing pipe connects the acid gas inlet and the acid liquid outlet, the coolant can flow into the holding space from the medium inlet, the acid gas can flow into the condensing pipe from the acid gas inlet and condense into acid liquid after heat conduction with the coolant in the holding space in the condensing pipe, and then flows out from the acid liquid outlet. Since the acid gas is located in the condensing pipe, compared with directly passing the acid gas into the holding space, more acid gas can exchange heat with the coolant by heat conduction, so that the acid gas can be more fully cooled by the coolant and condensed into acid liquid, which increases the proportion of the acid gas condensed to form acid liquid, that is, increases the recovery rate of the acid liquid, and the amount of residual acid gas in the gas after recovery treatment is lower, thereby reducing the workload of subsequent neutralization treatment equipment and reducing the maintenance cost of the neutralization treatment equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the application environment of the acid gas recovery device provided in an embodiment of the utility model;

[0016] Figure 2 A schematic structural diagram of a first acid gas recovery device provided in an embodiment of the present utility model;

[0017] Figure 3 A schematic structural diagram of a second acid gas recovery device provided in an embodiment of the present utility model;

[0018] Figure 4 A schematic diagram of the assembly of a recovery bottle and a condenser tube in the acid gas recovery device provided in an embodiment of the utility model;

[0019] Figure 5 A schematic diagram of the relative position relationship between the first condenser pipe and the cooling pipe in the acid gas recovery device provided by an embodiment of the utility model;

[0020] Figure 6 A schematic diagram of the relative position relationship between the second condenser pipe and the cooling pipe in the acid gas recovery device provided by an embodiment of the utility model;

[0021] Figure 7 A schematic diagram of the relative position relationship between the third type of condenser and the cooling tube in the acid gas recovery device provided by an embodiment of the present utility model;

[0022] Figure 8 A partial cross-sectional view of a third acid gas recovery device provided by an embodiment of the present utility model;

[0023] Figure 9 A schematic diagram of the connection relationship between the first type of air pump and the condenser pipe in the acid gas recovery device provided in an embodiment of the utility model;

[0024] Figure 10 A schematic diagram of the connection relationship between the second type of air pump and the condenser pipe in the acid gas recovery device provided in an embodiment of the utility model;

[0025] Figure 11 This is a structural schematic diagram of the fourth acid gas recovery device provided in an embodiment of the utility model.

[0026] Description of Reference Numerals

[0027] 10. Acid gas recovery device; 100. Recovery bottle; 110. Accommodation space; 111. Medium inlet; 112. Medium outlet; 113. Acid gas inlet; 114. Acid liquid outlet; 115. Acid gas outlet; 200. Condenser; 201. Spiral portion; 202. Vertical portion; 203. Expansion portion; 210. Exhaust port; 220. Exhaust pipe; 310. Liquid inlet pipe; 320. Liquid outlet pipe; 330. Liquid injection pipe; 400. Cooling pipe; 500. Air pump; 600. Switch valve; 20. Connecting pipe; 30. Test tube. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] The various specific technical features in the various embodiments described in the specific implementation methods can be combined in various ways without contradiction. For example, different implementation methods can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in the present invention will not be described separately.

[0030] It should also be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0031] In addition, it should be noted that the terms "include", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the following description, the terms "first\second\..." involved are merely used to distinguish different objects and do not indicate that there is any similarity or connection between the objects. It should be understood that the directions described by the directional nouns such as "above", "below", "inside" and "outside" are all directions in normal use.

[0032] In the following specific embodiments, the acid gas recovery device is used to recover the volatilized acid gas during the solid sample experiment, so that the acid gas is condensed into acid liquid in the acid gas recovery device and the condensed acid liquid is collected, thereby reducing the workload of the subsequent neutralization treatment equipment and reducing the maintenance cost of the neutralization treatment equipment. Figure 1 The application environment of the acid gas recovery device provided in the embodiment of the present application is described.

[0033] like Figure 1 As shown, the acid gas recovery device 10 is directly connected to the test tube 30 in the digestion device via the gas conduit 20. The acid gas volatilized in the test tube 30 enters the acid gas recovery device 10 directly through the gas conduit 20. The acid gas recovery device can condense the acid gas into acid liquid, thereby reducing the workload of the subsequent neutralization treatment equipment and lowering the maintenance cost of the neutralization treatment equipment. The structure of the acid gas recovery device 10 is further illustrated below with reference to an embodiment.

[0034] In some embodiments, as Figure 2 As shown, the acid gas recovery device 10 includes a recovery bottle 100 and a condenser 200. The recovery bottle 100 has a receiving space 110 therein. The recovery bottle 100 has a medium inlet 111, a medium outlet 112, an acid gas inlet 113, and an acid liquid outlet 114. The medium inlet 111 is connected to the medium outlet 112, and the acid gas inlet 113 is connected to the acid liquid outlet 114.

[0035] The condenser 200 is connected to the acid gas inlet 113 and the acid liquid outlet 114. The acid gas flows into the condenser 200 from the acid gas inlet 113 and can conduct heat conduction with the coolant located in the accommodation space 110. After the acid gas exchanges heat with the coolant through heat conduction, the temperature of the acid gas decreases, thereby condensing into acid liquid in the condenser 200. The formed acid liquid flows out of the condenser 200 from the acid liquid outlet 114 and is stored, thereby realizing the recovery of the acid gas. Moreover, the coolant whose temperature is increased through heat exchange with the acid gas flows out of the accommodation space 110 from the medium outlet, thereby maintaining a low temperature in the accommodation space 110 to increase the condensation rate of the acid gas. Among them, there are many ways to achieve heat conduction between the acid gas and the coolant. For example, the medium inlet 111 and the medium outlet 112 are both connected to the containing space 110, the coolant can be directly contained in the containing space 110, and the coolant located in the containing space 110 is in direct contact with the outer surface of the condenser 200, so that the acid gas in the condenser 200 can be heat-conducted with the coolant; optionally, the acid gas recovery device 10 also includes a cooling pipe, which is located in the containing space 110 and connected to the medium inlet 111 and the medium outlet 112. The coolant enters the containing space 110 but the containing space 110 does not directly contain the coolant. Heat conduction between the acid gas and the coolant is achieved through the contact between the cooling pipe and the condenser 200.

[0036] The relevant acid gas recovery device passes the acid gas directly into the storage space of the recovery bottle and sets a cooling pipe for the flow of coolant in the storage space. Only a small part of the acid gas in the storage space can directly contact the outer surface of the cooling pipe, thereby being quickly cooled by heat conduction, while most of the other acid gas can only be indirectly cooled by heat convection or heat radiation, resulting in a slow condensation rate of the acid gas; the acid gas recovery device provided in this embodiment passes the acid gas into the condensation pipe, and most of the acid gas concentrated in the condensation pipe can be heat-conducted with the coolant in the storage space 110, so that the acid gas can be more fully cooled into acid liquid, thereby improving the recovery rate of the acid gas. Among them, the recovery rate of the acid gas can be understood as the proportion of the acid gas condensed into acid liquid in all the acid gases entering the recovery bottle. The higher the recovery rate of the acid gas, the lower the residual acid gas content in the gas after the acid liquid is recovered, and the lower the workload of the subsequent neutralization treatment device.

[0037] It should be noted that, in the related art, the acid gas evaporates from the test tube into the digestion device, and the acid gas recovery device then extracts and recovers the air mixed with the acid gas as a whole. The acid gas recovery device needs to recover and condense a large amount of gas, so it is necessary to pass the gas containing a lower concentration of acid gas into the storage space of the recovery bottle with a large volume, and the storage space directly accommodates the gas containing acid gas. If these gases containing a lower concentration of acid gas are passed into the condenser, the volume of the gas containing acid gas that can be processed by a single condensation will be reduced, affecting the speed of acid gas recovery. The acid gas recovery device 10 provided in this embodiment is composed of a test tube. The acid gas is directly collected in the test tube. The acid gas recovery device 10 only needs to condense the acid gas volatilized in the test tube, and there is no need to collect a large amount of air in the digestion device, thereby reducing the volume of gas that needs to be processed by the acid gas recovery device 10, and the recovered gas contains a higher concentration of acid gas. It is on this basis that the applicant further thought that since the amount of gas containing acid gas that needs to be processed is small and the concentration of acid gas is high, the acid gas volatilized in the test tube can be passed into the condenser tube, and then the acid gas can be cooled more fully without affecting the amount of acid gas that can be processed by a single condensation, thereby improving the recovery rate of the acid gas.

[0038] The embodiment of the present utility model provides an acid gas recovery device, which includes a recovery bottle with a holding space inside, and a condensing pipe located in the condensing space; wherein the recovery bottle has a medium inlet, a medium outlet, an acid gas inlet and an acid liquid outlet, the condensing pipe connects the acid gas inlet and the acid liquid outlet, the coolant can flow into the holding space from the medium inlet, the acid gas can flow into the condensing pipe from the acid gas inlet and condense into acid liquid after heat conduction with the coolant in the holding space in the condensing pipe, and then flows out from the acid liquid outlet. Since the acid gas is located in the condensing pipe, compared with directly passing the acid gas into the holding space, more acid gas can exchange heat with the coolant by heat conduction, so that the acid gas can be more fully cooled by the coolant and condensed into acid liquid, which increases the proportion of the acid gas condensed to form acid liquid, that is, increases the recovery rate of the acid liquid, and the amount of residual acid gas in the gas after recovery treatment is lower, thereby reducing the workload of subsequent neutralization treatment equipment and reducing the maintenance cost of the neutralization treatment equipment.

[0039] In some embodiments, as Figure 2 As shown, the medium inlet 111 and the medium outlet 112 are both connected to the accommodating space 110, that is, the accommodating space 110 is used to directly accommodate the coolant, and the outer surface of the condenser 200 is directly in contact with the coolant in the accommodating space 110. It can be understood that by directly accommodating the coolant with a larger volume of the accommodating space 110, the volume of the accommodated coolant can be increased, so that more volume of coolant can participate in the cooling of the acid gas in the condenser 200, thereby further increasing the condensation degree of the acid gas and improving the recovery rate of the acid gas.

[0040] Optional, such as Figure 2 As shown, the acid gas recovery device 10 also includes a liquid inlet pipe 310 and a liquid outlet pipe 320. The liquid inlet pipe 310 is connected to the accommodating space 110 through the medium inlet 111, and the liquid outlet pipe 320 is connected to the accommodating space 110 through the medium outlet 112. The cooling liquid flows into the accommodating space 110 through the liquid inlet pipe 310 and flows out of the accommodating space 110 through the liquid outlet pipe 310.

[0041] In some embodiments, as Figure 3As shown, the top of the recovery bottle 100 has an opening, which forms a medium inlet 111, that is, the medium can enter the accommodating space 110 through the opening (medium inlet 111) located at the top of the recovery bottle 100; at the same time, the acid gas recovery device 10 also includes an injection pipe 330, which is located above the opening (medium inlet 111) and is spaced apart from the opening (medium inlet 111) by a preset distance. The injection pipe 330 can inject coolant into the accommodating space 110. It can be understood that the injection pipe 330 and the opening (medium inlet 111) are spaced apart by a preset distance. The injection pipe 330 is not directly connected to the opening (medium inlet 111), thereby forming an open structure at the top of the recovery bottle 100. In addition to leaving the accommodating space 110 by flowing out through the medium outlet 112, the coolant in the accommodating space 110 can also evaporate from the opening (medium inlet 111), thereby making the cooling speed of the coolant in the accommodating space 110 faster and making the coolant have a better cooling effect on the acid gas in the condenser 200, thereby further improving the recovery rate of the acid gas.

[0042] At the same time, since the injection pipe 330 is not directly connected to the medium inlet 111, but is located above the opening (medium inlet 111), the coolant does not flow directly into the containing space 110, but falls into the containing space 110 at a faster speed after being accelerated for a period of time under the action of its own gravity, so that the coolant entering the containing space 110 can more fully stir the coolant in the containing space 110, so that the temperature distribution of the coolant in the containing space 110 is more uniform. Specifically, the coolant with a higher temperature close to the condenser tube 200 can exchange heat with the coolant with a lower temperature away from the condenser tube 200 more quickly through heat convection, so that the temperature of the coolant close to the condenser tube 200 is lower, thereby further improving the recovery rate of the acid gas.

[0043] In some embodiments, as Figure 4 As shown, the condenser 200 extends along a curve. For example, the condenser 200 extends along a serpentine curve to form a meandering pipeline. For example, the condenser 200 extends along a spiral curve to form a spiral pipeline. This allows the condenser 200 to have a larger contact area with the coolant in the accommodating space 110, thereby making the heat exchange between the acid gas in the condenser 200 and the coolant more sufficient, thereby further improving the recovery rate of the acid gas.

[0044] In some embodiments, as Figure 5As shown, the acid gas recovery device 10 also includes a cooling pipe 400, which is located in the accommodating space 110, and the cooling pipe 400 is connected to the medium inlet 111 and the medium outlet 112. It can be understood that the cooling liquid is accommodated by the cooling pipe 400, that is, the accommodating space 110 does not directly accommodate the cooling liquid, but indirectly accommodates the cooling liquid through the cooling pipe 400 located in the accommodating space 110. The cooling liquid located in the accommodating space 110 does not flow freely in the accommodating space 110, but the flow path and flow range of the cooling liquid are restricted by the cooling pipe 400, so that the flow of the cooling liquid is more controllable, and thus a better cooling effect on the acid gas in the condenser 200 can be achieved with a smaller amount of cooling liquid.

[0045] In some embodiments, as Figure 5 As shown, the cooling tube 400 extends along a straight line, and the condenser tube 200 extends along a curve and is coiled around the outer surface of the cooling tube 400. By extending the condenser tube 200 along the curve, the condenser tube 200 can have a larger volume, so that the condenser tube 200 can accommodate more acid gas, that is, the acid gas recovery device 10 can condense more acid gas in a single treatment, thereby improving the acid gas recovery speed and acid gas recovery rate. Moreover, by coiling the condenser tube 200 around the outer surface of the cooling tube 400, the contact area between the condenser tube 200 and the cooling tube 400 is increased, thereby further improving the acid gas recovery rate.

[0046] In some embodiments, as Figure 6 As shown, the condenser tube 200 extends in a straight line, and the cooling tube 400 extends in a curve and is coiled around the outer surface of the condenser tube. By extending the cooling tube 400 in a curve, the cooling tube 400 can have a larger volume, thereby allowing more coolant to participate in cooling the acid gas in the condenser tube 200, so that the acid gas in the condenser tube 200 can be condensed into acid liquid more quickly, thereby improving the speed and acid gas recovery rate. Moreover, by coiling the cooling tube 400 around the outer surface of the condenser tube 200, the contact area between the condenser tube 200 and the cooling tube 400 is increased, thereby further improving the speed and acid gas recovery rate. Optionally, the condenser tube 200 extends in a vertical direction, and the acid gas inlet 113 is located below the acid liquid outlet 114, so that the condensed acid liquid can flow to the acid liquid outlet 114 under the action of its own gravity.

[0047] In some embodiments, as Figure 7As shown, the cooling tube 400 and the condensing tube 200 both extend along the curve, so that the cooling tube 400 and the condensing tube 200 both have a larger volume, that is, the acid gas recovery device 10 can condense more acid gas at a time, and can enable more coolant to participate in the cooling of the acid liquid in the condensing tube 200, thereby enabling more coolant to participate in the cooling of the acid gas in the condensing tube 200; at the same time, the ratio of the length of the portion of the condensing tube 200 that is in contact with the cooling tube 400 to the total length of the condensing tube 200 is greater than 0.95. It can be understood that most of the condensing tube 200 is in contact with the cooling tube 400, so that the coolant in the cooling tube 400 can cool the acid gas in the condensing tube 200 more fully, thereby further improving the recovery rate of the acid gas.

[0048] In some embodiments, as Figure 8 As shown, the acid gas recovery device 10 further includes an air pump 500 and an on-off valve 600. The air pump 500 is connected to the condenser 200 and is used to draw the acid gas into the condenser 200. The on-off valve 600 is located at the acid liquid outlet 114 and is used to control the opening and closing of the acid liquid outlet 114. When the air pump 500 is in operation, the on-off valve 600 closes the acid liquid outlet 114. Simultaneously, the recovery bottle 100 further includes an acid gas outlet 115, which connects the condenser 200 and the air pump 500. By controlling the linkage between the air pump 500 and the on-off valve 600, the negative pressure loss of the air pump 500 can be reduced, thereby enabling the air pump 500 to more fully draw the acid gas into the condenser 200. The effect of the linkage between the air pump 500 and the on-off valve 600 will be described below in conjunction with the operation process of the acid gas recovery device 10.

[0049] The air pump of the acid gas recovery device 10 operates intermittently, that is, the air pump 500 stops running for a period of time after running for a period of time and sucking the acid gas into the condenser 200, so that the acid gas in the condenser 200 has enough time to exchange heat with the coolant, so that the acid gas can be more fully condensed, and the condensed acid liquid can flow out from the acid liquid outlet 114, thereby completing a working cycle. The amount of acid gas that can be condensed and processed in a single working cycle can be called the acid gas amount processed by the acid gas recovery device 10 in a single time; when the air pump 500 stops running for a preset time, the air pump 500 runs again to suck new acid gas into the condenser 200 to start the next working cycle.

[0050] When the acid gas needs to be condensed, the air pump 500 operates by extracting the gas in the condenser 200 from the acid gas outlet 115 to form a negative pressure in the condenser 200, thereby sucking the acid gas in the test tube into the condenser 200 through the pressure difference between the condenser 200 and the test tube. If the acid liquid outlet 114 is in an open state in this state, the air outside the condenser 200 will enter the condenser 200 through the acid liquid outlet 114, that is, causing a negative pressure loss in the condenser 200. By controlling the switch valve 600 to close the acid liquid outlet 114 when the air pump 500 is running, the negative pressure loss in the condenser 200 can be reduced, so that the air pump 500 can suck more acid gas into the condenser 200 in a single operation, thereby increasing the amount of acid gas processed by the acid gas recovery device 10 in a single operation.

[0051] At the same time, when the air pump 500 is in a stopped state, the switch valve 600 controls the acid liquid outlet 114 to be in an open state, so that the condensed acid liquid can flow out from the acid liquid outlet 114; optionally, the acid gas recovery device 10 further includes a storage bottle 700, which has a storage space 710 therein, and the storage space 710 is connected to the acid liquid outlet 114, that is, the acid liquid flowing out of the acid liquid outlet 114 is stored in the storage space 710 of the storage bottle 700. Optionally, the storage bottle 700 is detachably connected to the recovery bottle 100. When the storage bottle 700 is full of acid liquid, the empty storage bottle 700 can be replaced so that the condensed acid liquid can continue to be stored through the empty storage bottle 700. In some embodiments, as Figure 8 As shown, the condenser 200 includes a spiral portion 201 and a vertical portion 202, the vertical portion 202 extends in the vertical direction, the spiral portion 201 spirally surrounds the outside of the vertical portion 202, one end of the spiral portion 201 is connected to the acid gas inlet 113, the other end of the spiral portion 201 is connected to the vertical portion 202, one end of the vertical portion 202 is connected to the acid liquid outlet 114, the other end of the vertical portion 202 is connected to the acid gas outlet 115, and the acid gas outlet 115 is located above the acid liquid outlet 114, thereby increasing the contact area between the acid gas and the coolant in the condenser 200 while allowing the condensed acid liquid to be discharged from the acid liquid outlet 114 under the action of gravity; optionally, a plurality of expansion portions 203 are arranged at intervals along the vertical portion 202, and each expansion portion 203 is arranged at intervals along the vertical direction and is connected in sequence, thereby further increasing the volume of acid gas that the condenser 200 can accommodate and further increasing the contact area between the acid gas and the coolant in the condenser 200.

[0052] In some embodiments, as Figure 9As shown, there are multiple recovery bottles 100, and the number of condensing tubes 200 is the same as the number of recovery bottles 100. The recovery bottles 100 are arranged at intervals, and each recovery bottle 100 contains a condensing tube 200. It can be understood that each recovery bottle 100 has an independent acid gas inlet 113, an acid liquid outlet 114, an acid gas outlet 115 and an independent condensing tube 200, so that the acid gas can be condensed through multiple condensing tubes 200, thereby further increasing the amount of acid gas that the acid gas recovery device 10 can process at a single time.

[0053] Optional, such as Figure 9 As shown, there is only one air pump 500, and one air pump 500 is connected to each condenser 200, that is, the acid gas is sucked into each condenser 200 through one air pump 500, thereby increasing the amount of acid gas that the acid gas recovery device 10 can process at a single time and reducing the manufacturing cost of the acid gas recovery device 10.

[0054] Optional, such as Figure 10 As shown, the number of air pumps 500 is the same as the number of condensers 200, and each air pump 500 is connected to each condenser 200, so that each condenser 200 is connected to an independent air pump 500. The acid gas is sucked into each condenser 200 through the independent air pump 500, which can form a larger negative pressure in the condenser 200, so that more acid gas is sucked into the condenser 200, thereby further increasing the amount of acid gas that the acid gas recovery device 10 can process at a single time.

[0055] In some embodiments, as Figure 11 As shown, the acid gas recovery device 10 further includes a neutralization adsorption structure 800. At the same time, the condenser 200 further includes an exhaust port 210, which is connected to the neutralization adsorption structure 800. Optionally, the exhaust pipe passes through the recovery bottle 100 and is connected to the neutralization adsorption structure 800. Optionally, the exhaust port 210 is Figure 8 The acid gas outlet 115, Figure 8 The air pump 500 is connected to the acid gas outlet 115 and to the neutralization adsorption structure 800. It can be understood that when the air pump 500 starts to pump the next batch of acid gas into the condenser 200, the uncondensed residual acid gas in the condenser 200 is also pumped out by the air pump 500 from the exhaust port 210 and passed into the neutralization adsorption structure 800. The alkaline substance in the neutralization adsorption structure 800 can neutralize the residual acid gas and the adsorbent in the neutralization adsorption structure 800, such as activated carbon, so that the residual acid gas can be discharged into the environment after being neutralized and adsorbed, thereby reducing pollution to the environment. At the same time, since the residual gas in the condenser 200 is pumped out, the back pressure in the condenser 200 is also reduced, so that more acid gas can be pumped into the condenser 200, thereby increasing the amount of acid gas that can be processed at a single time.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An acid gas recovery device, characterized in that: The acid gas recovery device comprises: A recovery bottle having an accommodating space therein, the recovery bottle having a medium inlet, a medium outlet, an acid gas inlet, and an acid liquid outlet, the medium inlet being in communication with the medium outlet, and the acid gas inlet being in communication with the acid liquid outlet; a condenser pipe, located in the accommodating space, and connected to the acid gas inlet and the acid liquid outlet; The medium inlet is used for allowing the coolant to flow into the accommodation space, and the medium outlet is used for allowing the coolant to flow out of the accommodation space, and the acid gas in the condenser tube can conduct heat conduction with the coolant in the accommodation space.

2. The acid gas recovery device according to claim 1, characterized in that: The medium inlet and the medium outlet are both communicated with the accommodating space. The accommodating space is used to directly accommodate the coolant, and the outer surface of the condenser tube is used to directly contact the coolant.

3. The acid gas recovery device according to claim 2, characterized in that: The top of the recovery bottle is provided with an opening, and the opening forms the medium inlet; Wherein, the acid gas recovery device further includes an injection pipe, which is located above the opening and spaced apart from the opening by a preset distance, and is used to inject the coolant into the accommodating space.

4. The acid gas recovery device according to claim 2 or 3, characterized in that: The condenser tube extends along a curve.

5. The acid gas recovery device according to claim 1, characterized in that: The acid gas recovery device further comprises: A cooling pipe is located in the accommodating space and communicates with the medium inlet and the medium outlet, and an outer surface of the cooling pipe contacts an outer surface of the condensing pipe.

6. The acid gas recovery device according to claim 5, characterized in that: The cooling pipe extends along a straight line, and the condensing pipe extends along a curve and is coiled around the outer surface of the cooling pipe. or, The condensing pipe extends along a straight line, and the cooling pipe extends along a curve and is coiled around the outer surface of the condensing pipe.

7. The acid gas recovery device according to claim 5, characterized in that: The cooling pipe and the condensing pipe both extend along a curve, and the ratio of the length of the portion of the condensing pipe that contacts the cooling pipe to the total length of the condensing pipe is greater than 0.

95.

8. The acid gas recovery device according to claim 1, characterized in that: The acid gas recovery device further comprises: an air pump, connected to the condenser, and configured to draw the acid gas into the condenser; a switch valve, located at the acid liquid outlet, for controlling the opening and closing of the acid liquid outlet, wherein when the air pump is in operation, the switch valve closes the acid liquid outlet, and when the air pump is stopped, the switch valve opens the acid liquid outlet; Wherein, the recovery bottle further includes an acid gas outlet, the acid gas outlet is connected to the condenser, and the acid gas outlet is connected to the condenser and the air pump.

9. The acid gas recovery device according to claim 8, characterized in that: There are multiple receiving bottles, and the receiving bottles are arranged at intervals. The number of the condensing tubes is the same as the number of the receiving bottles, and each receiving bottle contains one condensing tube. There is one air pump, which is connected to each condenser pipe. or, The number of the air pumps is the same as the number of the condensing tubes, and each of the air pumps is connected to each of the condensing tubes respectively.

10. The acid gas recovery device according to claim 1, characterized in that: The acid gas recovery device further comprises: a neutralization adsorption structure, located in the accommodation space; Wherein, the condensation pipe further includes an exhaust port, and the exhaust port is communicated with the neutralization adsorption structure.

Images