Temperature controllable device for biological desulfurization reaction

Abstract

The utility model provides a temperature-controllable device for biological desulfurization reaction. The temperature-controllable device comprises a liquid storage tank, a reaction tank, a hydrogen sulfide source container and a lifting component, an outlet end of the liquid storage tank is connected with an upper inlet of the spiral pipe, a first port of the liquid storage tank is connected with a lower inlet, an alkaline solution in the liquid storage tank enters the spiral pipe, gas in the hydrogen sulfide source container enters the spiral pipe under the action of the three-way valve, and the three-way valve is closed; the gas is in contact with the alkaline solution in the spiral pipe to release heat and is dissolved into the alkaline solution, the three-way valve and the pump are started again, so that the dissolved solution enters the discharging pipe from the spiral pipe and is discharged into the reaction tank for reaction, and heat is generated in the spiral pipe to continuously supply heat to the inner layer of the annular heat preservation layer and heat the reaction tank; when the device is used in other seasons, the upper inlet and the lower inlet are detached from the outlet end and the first port respectively, then the annular heat preservation layer descends, and therefore the temperature control process can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of biological desulfurization technology. Specifically, it relates to a temperature controllable device for biological desulfurization reaction. Background Art

[0002] Biological desulfurization, also known as biocatalytic desulfurization, is a process in which microorganisms or the enzymes they contain catalyze sulfur-containing compounds (H2S, organic sulfur) to release the sulfur they contain.

[0003] The process involves contacting biogas containing H2S (hydrogen sulfide) with an alkaline solution, such as a soda solution. After the H2S is absorbed by the alkaline solvent, it is transferred to a biological desulfurization tank for desulfurization, where it is catalyzed by microorganisms to produce elemental sulfur or sulfate. The optimal temperature for the microbial reaction in the biodesulfurization tank is 15°C to 35°C. A temperature too low will significantly reduce reaction activity, resulting in a decrease in the desulfurization rate.

[0004] However, in winter, temperatures are relatively low. During the biological desulfurization process, the low temperature reduces the activity of microorganisms, resulting in a significant reduction in desulfurization efficiency. In addition, when H2S and alkaline solvents fuse, some heat is released, which is usually naturally discharged into the air, resulting in a certain amount of energy waste. If this heat can be used for microbial biological desulfurization in winter or other seasons with lower temperatures, it will have a very good technical effect, achieve the goal of energy conservation and emission reduction, and avoid the problem of setting up a separate heat source for heating. Utility Model Content

[0005] The main purpose of the utility model is to provide a temperature-controllable device for biological desulfurization reaction, which has solved the above-mentioned problems.

[0006] The utility model provides a temperature-controllable device for biological desulfurization reaction, comprising a liquid storage tank, a reaction tank, a hydrogen sulfide source container and a lifting assembly;

[0007] The liquid storage tank is arranged on one side of the reaction tank, and is used to store the alkaline solution. The hydrogen sulfide source container is arranged on the other side of the reaction tank;

[0008] The lifting assembly has a lifting annular insulation layer, which is sleeved on the reaction tank. The inner wall of the annular insulation layer is provided with a spiral tube.

[0009] The outlet end of the liquid storage tank is detachably connected to the upper inlet of the spiral tube, the lower inlet of the spiral tube is detachably connected to the first port of the three-way valve, the second port of the three-way valve is connected to the hydrogen sulfide source container, the third port of the three-way valve is connected to the discharge pipe, and the upper end of the discharge pipe is connected to the reaction tank.

[0010] The above beneficial effects are as follows: the annular insulation layer is raised and sleeved on the reaction tank, the outlet end of the liquid storage tank is connected to the upper inlet of the spiral tube, the first port is connected to the lower inlet, the alkaline solution in the liquid storage tank first enters the spiral tube, and through the action of the three-way valve, the gas in the hydrogen sulfide source container enters the spiral tube. After a certain amount of gas enters the spiral tube, the three-way valve is closed, and the gas contacts the alkaline solution in the spiral tube to release heat and dissolve into the alkaline solution. Through the action of the three-way valve again, the pump is started to allow the dissolved solution to enter the discharge pipe from the spiral tube and be discharged into the reaction tank for reaction. The heat generated in the spiral tube continuously supplies heat to the inner layer of the annular insulation layer and heats the reaction tank. When used in other seasons, the upper inlet and the lower inlet are respectively disassembled from the outlet end and the first port, and then the annular insulation layer is lowered, so that the temperature control process can be realized.

[0011] A preferred solution is that the outer wall of the annular insulation layer is connected to the lifting block, the lifting block is arranged on a screw rod and a slide rod, and the screw rod and the slide rod are arranged in a groove at the inner end of the vertical block.

[0012] A preferred solution is that support rods are provided at the lower ends of the liquid storage tank, reaction tank and hydrogen sulfide source container.

[0013] A preferred solution is that a discharge port is provided at the lower end of the reaction tank, a gas outlet is provided at the upper end of the reaction tank, and a feed port is provided on one side of the upper end of the reaction tank.

[0014] A preferred solution is that the outlet end of the liquid storage tank is connected to the upper inlet via a first flange, and the lower inlet is connected to the first port via a second flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a plan view of a temperature controllable device for biological desulfurization reaction of the utility model;

[0016] Figure 2 This is a schematic structural diagram of a temperature-controllable device for biological desulfurization reaction of the utility model;

[0017] Figure 3 The utility model is a schematic structural diagram of a plan view of a temperature controllable device for biological desulfurization reaction. DETAILED DESCRIPTION

[0018] like Figures 1 to 3As shown, the present invention provides a temperature-controllable device for biological desulfurization reaction, including a liquid storage tank 10, a reaction tank 20, a hydrogen sulfide source container 30 and a lifting assembly 40; the reaction tank 20 is a biological desulfurization reaction tank, which contains active microorganisms and other substances required for the biological desulfurization reaction. This is a prior art and will not be described in detail here;

[0019] The liquid storage tank 10 is provided on one side of the reaction tank 20, and is used to store alkaline solution. The hydrogen sulfide source container 30 is provided on the other side of the reaction tank 20;

[0020] The lifting assembly 40 has a lifting annular insulation layer 41, which is sleeved on the reaction tank 20. The inner wall of the annular insulation layer 41 is provided with a spiral tube 42.

[0021] The outlet end of the liquid storage tank 10 is detachably connected to the upper inlet 43 of the spiral tube 42, the lower inlet 44 of the spiral tube 42 is detachably connected to the first port 51 of the three-way valve 50, the second port 52 of the three-way valve 50 is connected to the hydrogen sulfide source container 30, and the third port 53 of the three-way valve 50 is connected to the discharge pipe 54, and the upper end of the discharge pipe 54 is connected to the reaction tank 20.

[0022] In addition, the inlet of the pump 6 is connected to the lower tube of the discharge pipe, and the outlet of the pump is connected to the upper tube of the discharge pipe.

[0023] During the operation, the annular insulation layer 41 is raised and sleeved on the reaction tank 20, the outlet end of the liquid storage tank 10 is connected to the upper inlet 43 of the spiral tube 42, and the first port 51 is connected to the lower inlet 44. The alkaline solution in the liquid storage tank 10 first enters the spiral tube 42, and through the action of the three-way valve 50, the gas in the hydrogen sulfide source container 30 enters the spiral tube 42. After a certain amount of gas enters the spiral tube 42, the three-way valve 50 is closed, and the gas contacts the alkaline solution in the spiral tube 42 to release heat and dissolve into the alkaline solution. Again through the action of the three-way valve 50, the pump 6 is started to allow the dissolved solution to enter the discharge pipe 54 from the spiral tube 42 and be discharged into the reaction tank 20 for reaction. The heat generated in the spiral tube 42 continuously supplies heat to the inner layer of the annular insulation layer 41, thereby heating the reaction tank 20. According to the required temperature and the ambient temperature, the height of the annular insulation layer 41 is adjusted accordingly, that is, the range of the height of the annular insulation layer 41 covering the outer wall of the reaction tank 20 is adjusted, thereby achieving the purpose of temperature control and regulation.

[0024] In addition, when the height of the annular insulation layer 41 needs to be adjusted, in one embodiment, the upper inlet 43 and the lower inlet 44 are removed from the outlet end and the first port, respectively, and then the annular insulation layer 41 is raised and lowered. After the adjustment, the upper inlet 43 and the lower inlet 44 are connected via pipes. Alternatively, in other preferred embodiments, the upper inlet 43 and the lower inlet 44 are connected to the outlet end of the liquid storage tank 10 and the first port of the three-way valve, respectively, via redundant long pipes, such as a bellows 181 having a redundant length. In this way, when the height of the annular insulation layer 41 is adjusted, the redundant long pipes naturally expand and contract without the need for disassembly and reinstallation.

[0025] After a certain amount of liquid in the liquid storage tank 10 is discharged into the spiral tube 42, a certain amount of hydrogen sulfide biogas is discharged through the three-way valve to mix so that the sulfide is dissolved in the alkaline liquid, and then the liquid is discharged into the reaction tank 20 for reaction. This process needs to be repeated many times so that the hydrogen sulfide in the hydrogen sulfide biogas can be fully dissolved and the heat release rate can be controlled.

[0026] Preferably, the hydrogen sulfide source container 30 is connected to the three-way valve 50 via a one-way valve, allowing the gas within the hydrogen sulfide source container 30 to enter the three-way valve 50 and prevent liquid backflow. Further preferably, the hydrogen sulfide source container 30 includes an air pump, which increases pressure to allow biogas containing hydrogen sulfide to pass through the valve and enter the spiral tube 42 from the three-way valve 50. Furthermore, the upstream end of the hydrogen sulfide source container 30 can be directly connected to another source of hydrogen sulfide biogas, or the hydrogen sulfide biogas can be stored in the container 30 and used after reaching a certain pressure.

[0027] Preferably, the outer wall of the annular insulation layer 41 is connected to the lifting block 61 , and the lifting block 61 is set on a screw rod 62 and a slide rod 63 , and the screw rod 62 and the slide rod 63 are set in a groove 65 at the inner end of the vertical block 64 .

[0028] The motor drives the screw rod 62 to rotate, causing the lifting block 61 to rise or fall along the slide rod 63, and the lifting block 61 drives the annular insulation layer 41 to rise or fall. In winter, the annular insulation layer 41 is raised and sleeved on the reaction tank 20. In other seasons, the annular insulation layer 41 is lowered to the lower side of the reaction tank 20.

[0029] Preferably, support rods 5 are provided at the lower ends of the liquid storage tank 10 , the reaction tank 20 and the hydrogen sulfide source container 30 .

[0030] Preferably, the lower end of the reaction tank 20 is provided with a discharge port (not shown in the drawings), the upper end of the reaction tank is provided with an air outlet (not shown in the drawings), and one side of the upper end of the reaction tank is provided with a feed port (not shown in the drawings).

[0031] The waste generated at the bottom of the reaction tank 20 after the reaction can be discharged from the discharge port, and microorganisms can be added into the reaction tank through the feed port.

[0032] It should be noted that the outlet end of the reaction tank 10 and each flow direction of the three-way valve can be provided with a manual or electric valve as needed to intercept or conduct the fluid.

Claims

1. A temperature controllable device for biological desulfurization reaction, characterized in that: Includes liquid storage tank, reaction tank, hydrogen sulfide source container and lifting assembly The liquid storage tank is arranged on one side of the reaction tank, and is used to store the alkaline solution. The hydrogen sulfide source container is arranged on the other side of the reaction tank; The lifting assembly has a lifting annular insulation layer, which is sleeved on the reaction tank. The inner wall of the annular insulation layer is provided with a spiral tube. The outlet end of the liquid storage tank is detachably connected to the upper inlet of the spiral tube, the lower inlet of the spiral tube is detachably connected to the first port of the three-way valve, the second port of the three-way valve is connected to the hydrogen sulfide source container, the third port of the three-way valve is connected to the discharge pipe, and the upper end of the discharge pipe is connected to the reaction tank.

2. The temperature controllable device for biological desulfurization reaction according to claim 1, characterized in that: The outer wall of the annular heat-insulating layer is connected to the lifting block, and the lifting block is arranged on a screw rod and a slide rod, and the screw rod and the slide rod are arranged in the groove at the inner end of the vertical block.

3. The temperature controllable device for biological desulfurization reaction according to claim 1, characterized in that: The lower ends of the liquid storage tank, the reaction tank and the hydrogen sulfide source container are all provided with support rods.

4. The temperature controllable device for biological desulfurization reaction according to claim 1, characterized in that: The lower end of the reaction tank is provided with a discharge port, the upper end of the reaction tank is provided with a gas outlet, and one side of the upper end of the reaction tank is provided with a feed port.

5. The temperature controllable device for biological desulfurization reaction according to claim 1, characterized in that: The second port of the three-way valve is connected to the hydrogen sulfide source container through a one-way valve.

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