Jet feeding and recycling system for toxic gas

Abstract

The utility model provides a toxic gas jet feeding and recycling system. The toxic gas jet feeding and recycling system comprises a water-soluble reaction section and a toxic gas recycling section, the water-soluble reaction section comprises a sealed reaction container, a source water adding pipeline and a toxic gas adding pipeline which are connected with the sealed reaction container, and a container pressure transmitter arranged on the sealed reaction container; the toxic gas recycling section comprises a high-speed jet mixer, the incidence end of the high-speed jet mixer is connected with a source water incidence pipeline, a booster pump and an electric control valve are sequentially arranged on the source water incidence pipeline from a source water inlet, and the injection end of the high-speed jet mixer is connected with the sealed reaction container through an injection pipeline; and the outlet end of the high-speed jet mixer is connected with a source water adding pipeline through a recycling pipeline. The device has the advantages of saving medicament cost, reducing energy consumption, improving reaction efficiency, being safe and efficient, and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of toxic gas water-soluble reaction, in particular to a toxic gas jet dosing and recycling system. Background Art

[0002] Toxic gases are widely used in water-soluble reaction processes in the fields of environmental protection, chemical industry, etc., such as the process of using the strong oxidizing property of ozone to sterilize and disinfect water sources. However, in the current water-soluble reaction process, due to incomplete reaction or errors in the calculation of the ratio of toxic gas flow rate and water flow rate, toxic gases may not react completely and overflow after the process link. The increase in overflowed exhaust gas will cause the pressure of the sealed water-soluble reaction container to increase. For safety reasons, traditional processes often use chemical reaction methods to destroy the exhaust gas and then exhaust the entire gas. The use of chemical reaction methods to destroy the exhaust gas has the risk of leakage due to incomplete exhaust destruction on the one hand, and on the other hand, there are problems such as high process energy consumption and waste of reagents. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a toxic gas jet dosing and recycling system which can effectively save the cost of medicine, reduce energy consumption, improve reaction efficiency and be safe and efficient.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a toxic gas jet addition and reuse system, including a water-soluble reaction section and a toxic gas reuse section; the water-soluble reaction section includes a sealed reaction container, a source water addition pipeline and a toxic gas addition pipeline connected to the sealed reaction container, and a container pressure transmitter arranged on the sealed reaction container; the toxic gas reuse section includes a high-speed jet mixer, the injection end of the high-speed jet mixer is connected to the source water injection pipeline, and a booster pump and an electric regulating valve are sequentially arranged on the source water inlet on the source water injection pipeline, the injection end of the high-speed jet mixer is connected to the sealed reaction container through the injection pipeline, and the outlet end of the high-speed jet mixer is connected to the source water injection pipeline through the reuse pipeline.

[0005] Furthermore, the high-speed jet mixer includes an inlet tube, a mass transfer cavity tube body pressed and connected to the outlet end of the inlet tube by a lock nut, and a diffusion tube pressed and connected to the other end of the mass transfer cavity tube body by a lock nut. An ejector tube is welded to the lower end of the mass transfer cavity tube body, a front pressure transmitter is provided on the inlet tube, a rear pressure transmitter is provided on the diffusion tube, and a vacuum pressure transmitter is provided at the center of the upper part of the mass transfer cavity tube body.

[0006] Furthermore, a filter is provided on the source water inlet pipe at the front end of the booster pump.

[0007] Furthermore, a check valve is provided on the recycling pipeline.

[0008] Furthermore, the sealed reaction container is also provided with a self-operated pressure balancing valve.

[0009] Compared with the prior art, the advantages and beneficial effects of the present invention are:

[0010] The toxic gas jet dosing and recycling system of the present invention utilizes a high-speed jet mixer and uses source water as a carrier to draw out the unreacted toxic gas in the sealed reaction container for collection and recycling, and transports the evenly mixed source water and toxic gas to the source water dosing pipeline at the front end of the water-soluble reaction process through a recycling pipeline, thereby generating micron-level bubbles for early reaction. The system is continuous and efficient, improves reaction efficiency, has low energy consumption, avoids the waste of reagents caused by the destruction of tail gas in traditional processes, and prevents the leakage of toxic gas caused by incomplete destruction of tail gas, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of the process flow of the toxic gas jet dosing and recycling system.

[0012] Figure 2 The utility model is a structural diagram of a high-speed jet mixer of a toxic gas jet dosing and recycling system.

[0013] In the figure: 1-sealed reaction vessel; 2-source water feeding pipeline; 3-toxic gas feeding pipeline; 4-vessel pressure transmitter; 5-high-speed jet mixer; 6-source water injection pipeline; 7-boosting pump; 8-electric regulating valve; 9-injection pipeline; 10-return pipeline; 11-injection pipe; 12-mass transfer cavity tube body; 13-diffuser; 14-injection pipe; 15-forward pressure transmitter; 16-rear pressure transmitter; 17-vacuum pressure transmitter; 18-filter; 19-check valve; 20-self-operated pressure balancing valve. DETAILED DESCRIPTION

[0014] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.

[0015] like Figure 1 、 Figure 2As shown, a toxic gas jet dosing and reuse system includes a water-soluble reaction section and a toxic gas reuse section; the water-soluble reaction section includes a sealed reaction container 1, a source water dosing pipe 2 and a toxic gas dosing pipe 3 connected to the sealed reaction container 1, and a container pressure transmitter 4 arranged on the sealed reaction container 1; the toxic gas reuse section includes a high-speed jet mixer 5, the incident end of the high-speed jet mixer 5 is connected to the source water incident pipe 6, and the source water incident pipe 6 is provided with a booster pump 7 and an electric regulating valve 8 in sequence from the source water inlet, the ejection end of the high-speed jet mixer 5 is connected to the sealed reaction container 1 through the ejection pipe 9, and the outlet end of the high-speed jet mixer 5 is connected to the source water dosing pipe 2 through the reuse pipe 10.

[0016] Furthermore, the high-speed jet mixer 5 includes an injection tube 11, a mass transfer cavity body 12 connected to the outlet end of the injection tube 11 by a lock nut, and a diffusion tube 13 connected to the other end of the mass transfer cavity body 12 by a lock nut. The lower end of the mass transfer cavity body 12 is welded with an ejector tube 14, a front pressure transmitter 15 is provided on the injection tube 11, a rear pressure transmitter 16 is provided on the diffusion tube 13, and a vacuum pressure transmitter is provided at the center of the upper part of the mass transfer cavity body 12. The inlet of the injection pipe 11 is connected to the source water injection pipe 6, the inlet of the ejection pipe 14 is connected to the ejection pipe 9, and the outlet of the diffusion pipe 13 is connected to the return pipe 10. At the same time, the front pressure transmitter 15, the rear pressure transmitter 16 and the vacuum pressure transmitter 17 can detect the pressure value of each point in real time. Since the ejection flow rate is affected by the vacuum degree of the high-speed jet mixer 5, that is, the negative pressure, it can help the staff to judge whether the ejection flow rate requirements are met under the current pressure.

[0017] Specifically, source water and toxic gas are introduced into the sealed reaction vessel 1 to sterilize and disinfect the source water. After the reaction, the sterilized water enters the subsequent process stage. However, unreacted toxic gas remains in the sealed reaction vessel 1. In order to prevent gas leakage and reduce the waste of reagents caused by subsequent gas destruction, the gas in the sealed reaction vessel 1 is ejected through the high-speed jet mixer 5, with the source water as the medium, and enters the sealed reaction vessel 1 again to participate in the subsequent reaction, thereby realizing the recovery and reuse of excess gas. Among them, the booster pump 7 serves as a device for generating a pressurized water source to provide energy for the entire high-speed jet mixer 5. The high-speed jet mixer 5 adopts the Venturi tube principle, and the source water medium pressurized by the booster pump 7 is used as the incident fluid to form a negative pressure in the mass transfer cavity tube body 12, and the toxic gas The gas is continuously sucked into the mass transfer cavity tube body 12 at the ejector tube 14, uniformly mixed with the source water and transported to the source water addition pipeline 2, and micron-sized bubbles are generated. For the water-soluble reaction of the gas, the smaller the bubble diameter, the higher the overall reaction efficiency and the higher the reaction ratio. This is because the specific surface area of the toxic gas of the same volume increases, and the micron-sized bubbles have a low rising speed and a long residence time in the water body; even in a water body with a certain speed, since the endogenous molecular force is stronger than the surface tension applied by the water body to the bubbles, it is not easy to merge into bubbles with large particle size and a rapidly rising stratification phenomenon occurs, thereby realizing the recovery and reuse of the toxic gas and effectively improving the reaction efficiency. After the toxic gas is collected, reused and consumed, it is uniformly exhausted in the subsequent process links.

[0018] In addition, for the sake of system safety, it is necessary to ensure that the sealed reaction container 1 is always maintained in a slightly negative pressure state. Therefore, the container pressure transmitter 4 monitors the air pressure in the sealed reaction container 1 in real time, and calculates the gas flow rate that needs to be injected based on the pressure balance, thereby adjusting the incident flow rate and pressure of the high-speed jet mixer 5 by controlling the electric regulating valve 8, controlling the negative pressure generated in the mass transfer cavity tube body 12, and thus controlling the flow rate of the injected gas.

[0019] Furthermore, a filter 18 is provided on the source water inlet pipe 6 at the front end of the booster pump 7 to intercept impurities in the source water and reduce the impact of impurities on subsequent reactions.

[0020] Furthermore, a check valve 19 is provided on the recycling pipe 10 to effectively prevent water backflow.

[0021] Furthermore, the sealed reaction container 1 is also provided with a self-operated pressure balancing valve 20, wherein the self-operated pressure balancing valve 20 is a mechanical one-way air supply valve, which performs self-operated opening adjustment according to the upper and lower limit setting values, the lower limit is fully opened, and the upper limit is fully closed, which is a one-way air supply for the sealed reaction container 1, effectively preventing the occurrence of excessive negative pressure in the container and ensuring system safety.

[0022] The sealed reaction container 1 in the present invention may be a reactor.

[0023] The toxic gas jet dosing and recycling system of the present invention utilizes a high-speed jet mixer and uses source water as a carrier to draw out the unreacted toxic gas in the sealed reaction container for collection and recycling, and transports the evenly mixed source water and toxic gas to the source water dosing pipe at the front end of the water-soluble reaction process through a recycling pipe, thereby generating micron-level bubbles for early reaction, which is continuous and efficient, improves the reaction efficiency, avoids the waste of reagents caused by the destruction of tail gas in traditional processes, and prevents the leakage of toxic gas caused by incomplete destruction of tail gas, and is safe and reliable.

[0024] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. Toxic gas jet dosing and recycling system, characterized by: It includes water-soluble reaction section and toxic gas recycling section; The water-soluble reaction section includes a sealed reaction container, a source water feeding pipe and a toxic gas feeding pipe connected to the sealed reaction container, and a container pressure transmitter arranged on the sealed reaction container; The toxic gas recycling section includes a high-speed jet mixer, the inlet end of the high-speed jet mixer is connected to a source water inlet pipe, and a booster pump and an electric regulating valve are sequentially arranged on the source water inlet. The ejection end of the high-speed jet mixer is connected to a sealed reaction container through the ejection pipe, and the outlet end of the high-speed jet mixer is connected to a source water addition pipe through a recycling pipe.

2. The toxic gas jet dosing and recycling system according to claim 1, characterized in that: The high-speed jet mixer includes an inlet tube, a mass transfer cavity tube body pressed and connected to the outlet end of the inlet tube by a lock nut, and a diffusion tube pressed and connected to the other end of the mass transfer cavity tube body by a lock nut. An ejector tube is welded to the lower end of the mass transfer cavity tube body, a front pressure transmitter is provided on the inlet tube, a rear pressure transmitter is provided on the diffusion tube, and a vacuum pressure transmitter is provided at the center of the upper part of the mass transfer cavity tube body.

3. The toxic gas jet dosing and recycling system according to claim 1, characterized in that: A filter is provided on the source water inlet pipe at the front end of the booster pump.

4. The toxic gas jet dosing and recycling system according to claim 1 is characterized in that: A check valve is provided on the recycling pipeline.

5. The toxic gas jet dosing and recycling system according to claim 1 is characterized in that: The sealed reaction container is also provided with a self-operated pressure balancing valve.

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