CN217961360U

CN217961360U - Gas-liquid separation device of hydrogen reduction furnace and hydrogen reduction furnace

Info

Publication number: CN217961360U
Application number: CN202221934570.4U
Authority: CN
Inventors: 孙润超; 廖义钢; 张胜明; 石映奔; 彭辉; 柏朝朋
Original assignee: Chengdu Guangming Paite Precious Metal Co ltd
Current assignee: Chengdu Guangming Paite Precious Metal Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-12-06
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses a gas-liquid separation device of a hydrogen reduction furnace and the hydrogen reduction furnace, wherein the gas-liquid separation device of the hydrogen reduction furnace comprises a pipe body which is formed by fixedly connecting a first pipe cavity and a second pipe cavity; a heat exchange tube is arranged in the first tube cavity, one end of the heat exchange tube is communicated with the second tube cavity, and the other end of the heat exchange tube extends out of the first tube cavity; the first pipe cavity is communicated with a condensed water inlet and a condensed water outlet, and the second pipe cavity is communicated with a gas outlet and a liquid outlet. The hydrogen and the condensed water introduced into the first pipe cavity are subjected to heat exchange in the process of conveying in the heat exchange pipe, so that the acid liquid mixed in the hydrogen is subjected to heat release and condensation, and the acid liquid and the hydrogen are finally and completely separated in the second pipe cavity and are discharged through different outlets; the utility model discloses can effectively realize the gas-liquid separation to the hydrogen that hydrogen reduction furnace discharged hydrogen, can retrieve the liquid of separation when guaranteeing that hydrogen can light smoothly, solve the liquid that has corrosivity and cause the problem that corruption and gas pipeline are blockked up to the pipeline.

Description

Gas-liquid separation device of hydrogen reduction furnace and hydrogen reduction furnace

Technical Field

The utility model belongs to the technical field of noble metal refining equipment technique and specifically relates to a hydrogen reduction furnace gas-liquid separation equipment and a hydrogen reduction furnace with hydrogen reduction furnace gas-liquid separation equipment.

Background

In the refining production of noble metals, hydrogen gas is often used as a reducing agent for reducing noble metal compounds to elemental noble metals because of its extremely strong reducing property. The hydrogen reduction furnace is equipment which is specially used for reducing the noble metal compound by using hydrogen in a high-temperature environment; in the reduction process of the noble metal compound by using the hydrogen reduction furnace, hydrogen reacts to generate water, and meanwhile, as a plurality of acid radicals are often mixed in the noble metal compound, the water solution generated in the reduction process has extremely strong acidity.

In order to ensure that hydrogen can be ignited, the hydrogen reduction furnace often adopts an integrated gas exhaust pipe, but the aqueous solution generated in the reduction process easily corrodes the pipeline of the hydrogen reduction furnace due to the corrosivity, and the liquid in the pipeline cannot be normally discharged, so that the liquid in the cavity of the hydrogen reduction furnace cannot be completely discharged, and the following problems of the hydrogen reduction furnace can be caused finally: 1. the cavity of the hydrogen reduction furnace is corroded, and products in the cavity are polluted; 2. the redundant hydrogen can not be discharged from the exhaust pipeline smoothly, so that the pipeline is blocked, the hydrogen can not be ignited, and potential safety hazards exist; 3. acid liquor in the pipeline accumulates, components such as an electromagnetic valve and the like are easy to corrode, and the phenomenon of liquid leakage occurs; 4. the liquid generated in the reduction process is not easy to be recycled.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the gas-liquid separation device for the hydrogen reduction furnace is provided, and can effectively realize the separation of acid liquor and hydrogen.

For solving the technical problem the utility model discloses the technical scheme who adopts is: the gas-liquid separation device of the hydrogen reduction furnace comprises a tube body which is formed by fixedly connecting a first tube cavity and a second tube cavity; a heat exchange tube is arranged in the first tube cavity, one end of the heat exchange tube is communicated with the second tube cavity, and the other end of the heat exchange tube extends out of the first tube cavity; the first pipe cavity is communicated with a condensed water inlet and a condensed water outlet, and the second pipe cavity is communicated with a gas outlet and a liquid outlet.

Further, the method comprises the following steps: the heat exchange tube is spirally arranged in the first tube cavity.

Further, the method comprises the following steps: the heat exchange tube extends axially within the first lumen.

Further, the method comprises the following steps: the first tube cavity and the second tube cavity are of an integrated structure and are formed by separating an isolation disc arranged in the tube bodies; the heat exchange tube penetrates through the isolation disc and extends into the second tube cavity.

Further, the method comprises the following steps: the first tube cavity and the second tube cavity are respectively and fixedly connected with an isolation disc arranged between the first tube cavity and the second tube cavity; the heat exchange tube penetrates through the isolation disc and extends into the second tube cavity.

Further, the method comprises the following steps: the isolation disc is made of polytetrafluoroethylene; the heat exchange tube and the first tube cavity are both made of glass; the second pipe cavity is a Ha-type alloy tank.

Further, the method comprises the following steps: one end of the heat exchange tube extending out of the first tube cavity and the condensate outlet are both positioned at one end of the first tube cavity far away from the second tube cavity; the condensed water inlet is positioned at one end of the first tube cavity close to the second tube cavity.

Further, the method comprises the following steps: the gas outlet is positioned at one end of the second tube cavity close to the first tube cavity; the liquid outlet is positioned at one end of the second tube cavity far away from the first tube cavity.

Further, the method comprises the following steps: still including setting up the level gauge on the body, the level gauge is located second lumen department.

The utility model also discloses a hydrogen reduction furnace, which comprises an ignition device, a hearth and a discharge electromagnetic valve, and also comprises a gas-liquid separation device of the hydrogen reduction furnace, wherein the gas-liquid separation device of the hydrogen reduction furnace is arranged between the ignition device and the hearth; one end of the heat exchange tube in the gas-liquid separation device of the hydrogen reduction furnace, which extends out of the first tube cavity, is communicated with a discharge port electromagnetic valve of the hydrogen reduction furnace.

The utility model has the advantages that: the hydrogen gas is sent into the second tube cavity by arranging the heat exchange tube in the first tube cavity, and the hydrogen gas can exchange heat with condensed water introduced into the first tube cavity in the process of being conveyed in the heat exchange tube, so that the acid liquid mixed in the hydrogen gas is released for condensation, and the acid liquid and the hydrogen gas are finally and completely separated in the second tube cavity and are discharged through different outlets; the utility model discloses can effectively realize the gas-liquid separation to the hydrogen that hydrogen reduction furnace discharged hydrogen, can retrieve the liquid of separation when guaranteeing that hydrogen can light smoothly, solve the liquid that has corrosivity and cause the problem that corruption and gas pipeline are blockked up to the pipeline.

Drawings

Fig. 1 is a schematic structural view of the present invention;

labeled as: 100-separation disc, 200-first tube cavity, 210-condensed water inlet, 220-condensed water outlet, 300-second tube cavity, 310-gas outlet, 320-liquid outlet, 400-heat exchange tube and 500-liquid level meter.

Detailed Description

In order to facilitate understanding of the present invention, the following description is further provided with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "front", "back", "left", "right", "upper", "lower", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or imply that the device or component indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the main structure of the gas-liquid separation device of the hydrogen reduction furnace disclosed by the present invention is a tube body composed of a first tube cavity 200 and a second tube cavity 300, and the tube body can be of an integral structure or a split structure. When the tube body adopts an integrated structure, the isolating disc 100 is arranged in the tube body to divide the inner cavity of the tube body into two tube cavities, namely a first tube cavity 200 and a second tube cavity 300; when the tube body adopts a split structure, the first tube cavity 200 and the second tube cavity 300 are connected together through the separation disc 100, and the first tube cavity 200 and the second tube cavity 300 are respectively connected and fixed with the upper end face and the lower end face of the separation disc 100.

The utility model discloses can realize the effective separation to gas-liquid mixture, produced hydrogen that mixes the acidizing fluid of in-process that for example hydrogen reduction furnace carries out the reduction to noble metal compound. The heat exchange tube 400 is arranged in the first tube cavity 200 of the tube body, so that the end head of one end of the heat exchange tube 400 penetrates through the separation disc 100 between the first tube cavity 200 and the second tube cavity 300 and extends into the second tube cavity 300, the end head of the other end of the heat exchange tube 400 extends out of the first tube cavity 200 to serve as an inlet of gas, and a sealing ring can be arranged at the position, through which the heat exchange tube 400 penetrates, of the separation disc 100 to improve the sealing effect; meanwhile, the first lumen 200 is communicated with the condensed water inlet 210 and the condensed water outlet 220, and the second lumen 300 is communicated with the gas outlet 310 and the liquid outlet 320. When gas-liquid separation is carried out, hydrogen mixed with acid liquor is introduced into the heat exchange tube 400 through the inlet of the heat exchange tube 400, meanwhile, condensed water is introduced into the second tube cavity 300 from the condensed water inlet 210, the condensed water introduced into the second tube cavity 300 exchanges heat with the hydrogen in the heat exchange tube 400 in the process that the hydrogen is conveyed to the second tube cavity 300 along the heat exchange tube 400, the heat of high-temperature hydrogen is transmitted into the condensed water outside the heat exchange tube 400 through the tube wall of the heat exchange tube 400, the condensed water continuously absorbs the heat of the hydrogen in the process of conveying to the condensed water outlet 220, so that the acid liquor mixed in the hydrogen releases heat and is condensed, the acid liquor condensed in the second tube cavity 300 is separated from the hydrogen, the finally condensed acid liquor is discharged through the liquid outlet 320 on the second tube cavity 300, and the separated hydrogen is discharged through the gas outlet 310 on the second tube cavity 300; a valve may be disposed on the liquid outlet 320, and a worker may open the valve as needed to clean the acid liquid stored in the second lumen 300 at a regular time.

The structure of heat exchange tube 400 plays important influence to the efficiency and the quality of heat exchange, the utility model discloses in optimize heat exchange tube 400's structure, including the heat exchange tube 400 who adopts helical structure, can further make heat exchange tube 400 axial extension in first lumen 200 simultaneously. The heat exchange tube 400 has a spiral structure, so that the length of a conveying path of hydrogen in the heat exchange tube 400 and the stay time in the second tube cavity 200 can be increased, and the contact area between the heat exchange tube 400 and condensate water is increased, so that the heat exchange time between the hydrogen and the condensate water outside the heat exchange tube 400 is increased, better heat exchange quality can be provided, and heat in the hydrogen can be transferred to the condensate water to the maximum extent.

Because the hydrogen produced by the reduction of the noble metal compound in the hydrogen reduction furnace has corrosivity due to the mixed acid solution, the part of the gas-liquid separation device of the hydrogen reduction furnace, which is directly contacted with the hydrogen, should be made of a material with good corrosion resistance, for example, the separation disc 100 and the second tube cavity 300 of the utility model can be directly contacted with the hydrogen, therefore, the separation disc 100 of the utility model adopts a polytetrafluoroethylene material with the characteristics of high temperature resistance and corrosion resistance, such as polytetrafluoroethylene; the second tube cavity 300 is made of a hastelloy tank which has good corrosion resistance and high temperature resistance and is suitable for storing separated acid liquor. The heat exchange tube 400 and the second tube cavity 200 need to be made of materials with good heat conductivity due to the fact that heat exchange work is carried out, meanwhile, real-time monitoring of the interior of the heat exchange tube 400 and the interior of the second tube cavity 200 can be carried out constantly, and therefore the heat exchange tube 400 and the first tube cavity 200 are made of glass.

As shown in fig. 1, in the present invention, the end of the heat exchange tube 400 extending out of the first lumen 200 and the end of the condensed water outlet 220 away from the second lumen 300 are both disposed on the first lumen 200, and the condensed water inlet 210 is disposed on the first lumen 200 near the end of the second lumen 300. Because of the usually vertical setting of hydrogen reduction furnace gas-liquid separation equipment, after adopting above-mentioned structure, first lumen 200 is located the top of second lumen 300, heat exchange tube 400 stretches out first lumen 200 and all is located condensate inlet 210's top as gas inlet's one end and comdenstion water export 220 outward, carrying out the in-process of heat exchange, hydrogen is from last to carrying down, the comdenstion water is then from supreme carrying down, form the cross-flow between hydrogen and the comdenstion water, be favorable to the condensation of liquid composition in the hydrogen, can further improve condensation efficiency.

As shown in fig. 1, the gas outlet 310 is disposed on the second lumen 300 near one end of the first lumen 200, and the liquid outlet 320 is disposed on the second lumen 300 far from one end of the first lumen 200. Because the acidizing fluid that hydrogen condensed out after the heat exchange can deposit in the bottom of second lumen 300, and the hydrogen of separating then can rise to the top of second lumen 300, adopt above-mentioned structure after, can be very first time with hydrogen and acidizing fluid discharge after the separation, can effectively avoid hydrogen and acidizing fluid secondary mixing after the separation.

In order to facilitate the staff to monitor the acidizing fluid volume of second lumen 300 internal deposit, the utility model discloses in still increased level gauge 500 on the body, level gauge 500 is located second lumen 300 department, and the staff can select the opportunity of retrieving the acidizing fluid according to the liquid level display on the level gauge 500 to prevent to take place the overflow because of the acidizing fluid deposit is excessive in second lumen 300.

The utility model also discloses a hydrogen reduction furnace adopting the gas-liquid separation device of the hydrogen reduction furnace, the gas-liquid separation device of the hydrogen reduction furnace is arranged between the ignition device and the hearth, and one end of the heat exchange tube 400 in the gas-liquid separation device of the hydrogen reduction furnace, which extends out of the first tube cavity 200, is communicated with a discharge port electromagnetic valve of the hydrogen reduction furnace; an ignition device, a hearth and an exhaust electromagnetic valve of the hydrogen reduction furnace are all in the prior art, and are not described again. The hydrogen gas mixed with the acid liquor generated after the reduction reaction of the noble metal compound is carried out by the hydrogen reduction furnace is discharged into the heat exchange tube 400 through the discharge port electromagnetic valve, the hydrogen gas is separated in the second tube cavity 300 after the heat exchange with the condensed water in the first tube cavity 200, the separated hydrogen gas is smoothly ignited after being discharged through the gas outlet 310, and the separated acid liquor is stored in the second tube cavity 300 and is regularly discharged and cleaned by a worker.

Claims

1. The gas-liquid separation device of the hydrogen reduction furnace is characterized in that: comprises a tube body formed by fixedly connecting a first tube cavity (200) and a second tube cavity (300); a heat exchange tube (400) is arranged in the first tube cavity (200), one end of the heat exchange tube (400) is communicated with the second tube cavity (300), and the other end of the heat exchange tube (400) extends out of the first tube cavity (200); the first tube cavity (200) is also communicated with a condensed water inlet (210) and a condensed water outlet (220), and the second tube cavity (300) is communicated with a gas outlet (310) and a liquid outlet (320).

2. The gas-liquid separation apparatus for a hydrogen reduction furnace according to claim 1, characterized in that: the heat exchange tube (400) is spirally arranged in the first tube cavity (200).

3. The gas-liquid separation apparatus for a hydrogen reduction furnace according to claim 2, characterized in that: the heat exchange tube (400) extends axially within the first lumen (200).

4. The gas-liquid separating apparatus for a hydrogen reducing furnace according to claim 1, characterized in that: the first lumen (200) and the second lumen (300) are of an integral structure, and the first lumen (200) and the second lumen (300) are formed by separating an isolation disc (100) arranged in the lumens; the heat exchange tube (400) penetrates through the isolation disc (100) and extends into the second tube cavity (300).

5. The gas-liquid separating apparatus for a hydrogen reducing furnace according to claim 1, characterized in that: the first lumen (200) and the second lumen (300) are respectively and fixedly connected with an isolation disc (100) arranged between the first lumen (200) and the second lumen (300); the heat exchange tube (400) penetrates through the isolation disc (100) and extends into the second tube cavity (300).

6. The gas-liquid separation apparatus for a hydrogen reducing furnace according to claim 4 or 5, wherein the material of the separation plate (100) is polytetrafluoroethylene; the heat exchange tube (400) and the first tube cavity (200) are both made of glass; the second tube cavity (300) is a Ha-type alloy tank.

7. The gas-liquid separation apparatus for a hydrogen reduction furnace according to claim 1, characterized in that: one end of the heat exchange tube (400) extending out of the first tube cavity (200) and the condensed water outlet (220) are both positioned at one end of the first tube cavity (200) far away from the second tube cavity (300); the condensed water inlet (210) is positioned at one end of the first lumen (200) close to the second lumen (300).

8. The gas-liquid separating apparatus for a hydrogen reducing furnace according to claim 1, characterized in that: the gas outlet (310) is located on the second lumen (300) near one end of the first lumen (200); the liquid outlet (320) is located on the second lumen (300) at an end remote from the first lumen (200).

9. The gas-liquid separation apparatus for a hydrogen reduction furnace according to claim 1, characterized in that: the liquid level meter (500) is arranged on the pipe body, and the liquid level meter (500) is located at the second pipe cavity (300).

10. The hydrogen reduction furnace comprises an ignition device, a hearth and a discharge port electromagnetic valve, and is characterized in that: the hydrogen reduction furnace gas-liquid separation device according to any one of claims 1 to 9, which is provided between the ignition device and the hearth; one end of the heat exchange tube (400) in the gas-liquid separation device of the hydrogen reduction furnace, which extends out of the first tube cavity (200), is communicated with an exhaust port electromagnetic valve of the hydrogen reduction furnace.