CN216856218U

CN216856218U - Device for absorbing volatile harmful gas of nuclear power plant

Info

Publication number: CN216856218U
Application number: CN202123081932.8U
Authority: CN
Inventors: 张君伟; 宋奎奎; 曹刚; 程修; 王宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-07-01
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a device for absorbing volatile harmful gas in a nuclear power plant, which comprises a mother liquor barrel, a liquid feeding pipe, a communicating pipe and an absorption concentration device, wherein a flange connector is arranged at the other end of the liquid feeding pipe, a ball valve is arranged at the top end of the flange connector, one end of the communicating pipe is connected with a connecting disc at the top end of the mother liquor barrel, a check valve is arranged on the surface of the communicating pipe, an atmosphere communicating pipe is arranged at the top end of the absorption concentration device, a liquid injection pipe is arranged at the top end of the absorption concentration device, and a liquid discharge port is arranged at one end of the absorption concentration device. The utility model controls the injection of ammonia gas, the transportation of ammonia gas, the injection of desalted water and the discharge of treated liquid by remotely controlling the valves, so that workers can treat the ammonia gas by remotely controlling the valves and concentrating the ammonia gas in an absorption and concentration device according to the principle that the ammonia gas is easily dissolved in water, the ammonia gas is treated without manual work in one line, and the personal safety hazard of the ammonia gas to the workers is prevented.

Description

Device for absorbing volatile harmful gas of nuclear power plant

Technical Field

The utility model relates to the technical field of harmful gas treatment, in particular to a device for absorbing volatile harmful gas in a nuclear power plant.

Background

When carrying out aqueous ammonia, hydrazine when preparing between adding medicine in the current each two return circuits of nuclear power unit, all adopt from the mother liquor jar to add medicine and add the mode of water dilution in the operation sub-jar, daily according to the mother liquor liquid level condition, inform aqueous ammonia/hydrazine producer to carry out the mother liquor and supply, have following problem in the current working method:

1. the concentration of the ammonia mother liquor supplemented by an ammonia factory is about 16% -17%, when ammonia is unloaded in an MP dosing room, the top manhole cover of the tank needs to be opened, ammonia can inevitably volatilize and enter the factory building, particularly, in summer, the highest concentration of ammonia in air can reach 70ppm, an ammonia alarm instrument continuously alarms, and ammonia with a high concentration in the air can deteriorate the working environment of the factory building and damage the health of operators.

2. When purchasing the aqueous ammonia outward and the uninstallation of hydrazine, put into the mother liquor jar manhole of opening the manhole cover through the manual work with the pipeline, the pipeline can cause the aqueous ammonia to leak if fixed not hard up on the one hand, and during on the other hand unloads the ammonia, the manhole cover keeps opening for a long time, can cause long-time ammonia to volatilize and get into ambient air.

3. The existing medicine unloading mode needs personnel to wear all protective articles such as full masks and acid and alkali resistant clothes to operate at an ammonia water unloading port in a short distance, long-time work can affect the body of the personnel, and serious people have suffocation risks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a device for absorbing volatile harmful gases in a nuclear power plant.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model discloses a device for absorbing volatile harmful gas in a nuclear power plant, which comprises a mother liquor barrel, a liquid adding pipe, a communicating pipe, an absorption concentration device and a one-way breather valve, wherein a connecting disc is installed at the top end of the mother liquor barrel, the liquid adding pipe and the communicating pipe are installed at the top end of the connecting disc, one end of the liquid adding pipe is connected with the connecting disc at the top end of the mother liquor barrel, a flange interface is installed at the other end of the liquid adding pipe, a ball valve is installed at the top end of the flange interface, one end of the communicating pipe is connected with the connecting disc at the top end of the mother liquor barrel, the other end of the communicating pipe is connected with the absorption concentration device, a check valve is installed on the surface of the communicating pipe, an atmosphere communicating pipe is installed at the top end of the absorption concentration device, the atmosphere communicating pipe is vertical, a liquid injection pipe is installed at the top end of the absorption concentration device, and a liquid discharge port is installed at one end of the absorption concentration device.

According to a preferable technical scheme, the flange interface is connected with an ammonia gas outlet, the ammonia gas outlet conveys ammonia gas to the liquid adding pipe, the ammonia gas outlet is connected with the mother liquid barrel through a liquid adding pipe pipeline, the ball valve is installed on the surface of the liquid adding pipe, and the wireless controller is installed inside the ball valve.

As a preferred technical scheme of the utility model, the connecting disc is arranged on the top end surface of the mother liquid barrel, the connecting disc is of a detachable structure, the mother liquid barrel is connected with the liquid feeding pipe and the communicating pipe through the connecting disc, and the mother liquid barrel is connected with the absorption concentration device through the communicating pipe.

As a preferred technical scheme of the utility model, the one-way breather valve is arranged at the top side of the mother liquid barrel, and a connecting device is arranged in the one-way breather valve and is connected with the mother liquid barrel and the outside air.

As a preferred technical scheme of the utility model, the atmosphere communicating pipe is connected with the outside of a factory building, one end of the liquid injection pipe is connected with a desalted water input device, and desalted water is arranged inside the desalted water input device.

As a preferable technical scheme of the utility model, a drain valve is arranged in the drain port, and a wireless controller is arranged in the drain valve.

As a preferred technical scheme of the present invention, remote valves are installed inside the liquid injection pipe and the check valve, a wireless controller is installed inside the remote valves, the wireless controller is wirelessly connected with a host, and the wireless controller is a cellular network.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model controls the injection of ammonia gas, the transportation of ammonia gas, the injection of desalted water and the discharge of treated liquid by remotely controlling the valves, so that workers can treat the ammonia gas by remotely controlling the valves and concentrating the ammonia gas in an absorption and concentration device according to the principle that the ammonia gas is easily dissolved in water, the ammonia gas is treated without manual work in one line, and the personal safety hazard of the ammonia gas to the workers is prevented.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a flow chart of the overall architecture of the present invention;

FIG. 3 is a schematic flow diagram of the structure of the present invention;

in the figure: 1. a mother liquor barrel; 2. a liquid feeding pipe; 201. a ball valve; 3. a communicating pipe; 301. a one-way breather valve; 302. a check valve; 4. an absorption concentration device; 401. an atmosphere communicating pipe; 402. a liquid injection pipe; 403. A liquid discharge port; 4031. and a drain valve.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Wherein like reference numerals refer to like parts throughout.

Example 1

As shown in figures 1-3, the utility model provides a device for absorbing volatile harmful gas in a nuclear power plant, which comprises a mother liquid barrel 1, a liquid adding pipe 2, a communicating pipe 3, an absorption concentration device 4 and a one-way breather valve 301, wherein a connecting disc is arranged at the top end of the mother liquid barrel 1, the liquid adding pipe 2 and the communicating pipe 3 are arranged at the top end of the connecting disc, one end of the liquid adding pipe 2 is connected with the connecting disc at the top end of the mother liquid barrel 1, the other end of the liquid adding pipe 2 is provided with a flange interface, the top end of a flange interface is provided with a ball valve 201, one end of a communicating pipe 3 is connected with a connecting disc at the top end of a mother liquid barrel 1, the other end of the communicating pipe 3 is connected with an absorption concentration device 4, the surface of the communicating pipe 3 is provided with a check valve 302, the top end of the absorption concentration device 4 is provided with an atmosphere communicating pipe 401, the atmosphere communication pipe 401 is vertical, the liquid inlet pipe 402 is attached to the top end of the absorption concentrator 4, and the liquid outlet 403 is attached to one end of the absorption concentrator 4.

Further, flange interface connection ammonia discharge port, its ammonia discharge port carries ammonia to liquid feeding pipe 2, and the ammonia discharge port passes through liquid feeding pipe 2 pipe connection with mother liquor bucket 1, and ball valve 201 is installed in liquid feeding pipe 2 surfaces, and ball valve 201 internally mounted has a wireless controller, and nuclear power plant's ammonia discharge port connects the flange interface to through flange interface connection mother liquor valve, ball valve 201 passes through wireless controller remote control switch.

The connection pad sets up in mother's liquid bucket 1 top surface, its connection pad is detachable construction, mother's liquid bucket 1 passes through the connection pad and connects liquid feeding pipe 2 and communicating pipe 3, mother's liquid bucket 1 and absorption centralized arrangement 4 are through 3 pipe connections communicating pipe, one-way breather valve 301 sets up in mother's liquid bucket 1 top side, the internally mounted of one-way breather valve 301 has connecting device, its connecting device connects mother's liquid bucket 1 and outside air, the user's accessible is dismantled the connection pad and is got off, change or wash mother's liquid bucket 1, one-way breather valve 301 is used for adjusting 1 inside air pressure of mother's liquid bucket, prevent that 1 inside pressure of mother's liquid bucket is too high or low.

The atmosphere communicating pipe 401 is connected with the outside of a factory building, one end of the liquid injection pipe 402 is connected with a desalted water input device, desalted water is arranged inside the desalted water input device, a drain 4031 is arranged inside a drain port 403, wireless controllers are arranged inside the drain 4031 and the check valve 302, remote valves are arranged inside the liquid injection pipe 402, a wireless controller is arranged inside the remote valves, the wireless controller is in wireless connection with a host computer, the wireless controller is a honeycomb network, the desalted water input device can inject desalted water into the absorption concentration device 4 through the liquid injection pipe 402, ammonia can be easily dissolved in water and can be concentrated inside the water, the atmosphere communicating pipe 401 is used for balancing the atmospheric pressure inside the absorption concentration device 4 and discharging redundant gas, the drain valve 4031, the check valve 302 and the remote valves of the liquid injection pipe 402 are controlled to be switched through the wireless controllers, the check valve 302 is used to control the amount of ammonia entering the absorption concentration device 4.

Specifically, when a user uses the device of the utility model to absorb toxic gas in a nuclear power plant, the device is connected with an ammonia gas outlet of the nuclear power plant through a flange interface, the ball valve 201 is controlled by a wireless controller, the user can control the opening and closing of the ball valve 201 by remote control to control the ammonia gas to enter the mother liquid barrel 1, the ammonia gas entering the mother liquid barrel 1 enters the mother liquid barrel 1 to be stored, and the ammonia gas is slowly conveyed to the interior of the absorption concentration device 4 through the communicating pipe 3 to be processed, the user can discharge the ammonia gas from the mother liquid barrel 1 to the absorption concentration device 4 through remotely controlling the opening and closing of the check valve 302, meanwhile, the connecting device of the one-way breather valve 301 is connected with the outside air to adjust the internal air pressure of the mother liquid barrel 1 to prevent the internal pressure of the mother liquid barrel 1 from being too high or too low, the ammonia gas entering the absorption concentration device 4 is connected with the demineralized water input device through the liquid injection pipe 402 to inject demineralized water into the absorption concentration device 4, through the characteristic that the ammonia is soluble in water easily, handle the ammonia, and absorb the inside atmospheric pressure of centralized arrangement 4 through the atmosphere connecting pipe balance, and discharge unnecessary gas, liquid injection pipe 402 gets into through remote valve control demineralized water, the ammonia that fuses into demineralized water is discharged through leakage fluid dram 403, the user sees through control flowing back valve 4031 and opens, the liquid discharge that will handle, the injection of ammonia, the transportation of ammonia, the injection of demineralized water and the discharge of handling back liquid all control through wireless controller control flap, the user passes through honeycomb network control, long-range processing the exhaust gas of nuclear power plant, need not staff's manual handling, prevent that harmful gas from endangering staff's life safety.

The device is also suitable for other work similar to a dosing mode, aiming at different types of harmful gases, the absorption device is filled with an adaptive absorption solvent to filter and purify the collected gases and reduce the emission to the environment, and ammonia gas and demineralized water are taken as illustrations.

The utility model controls the injection of ammonia gas, the transportation of ammonia gas, the injection of desalted water and the discharge of treated liquid by remotely controlling the valves, so that workers can treat the ammonia gas by remotely controlling the valves and concentrating the ammonia gas in the absorption and concentration device 4 according to the principle that the ammonia gas is easy to dissolve in water, the ammonia gas treatment does not need to be carried out manually in one line, and the personal safety hazard of the ammonia gas to the workers is prevented.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a device of nuclear power plant's absorption volatility harmful gas, includes mother liquor bucket (1), liquid feeding pipe (2), communicating pipe (3), absorption centralized arrangement (4) and one-way breather valve (301), its characterized in that, the connection pad is installed on mother liquor bucket (1) top, liquid feeding pipe (2) and communicating pipe (3) are installed on the connection pad top, the connection pad on mother liquor bucket (1) top is connected to the one end of liquid feeding pipe (2), the flange interface is installed to the other end of liquid feeding pipe (2), and ball valve (201) is installed on the top of its flange interface, the connection pad on mother liquor bucket (1) top is connected to the one end of communicating pipe (3), absorption centralized arrangement (4) is connected to the other end of communicating pipe (3), the surface mounting of communicating pipe (3) has check valve (302), atmosphere communicating pipe (401) is installed on the top of absorption centralized arrangement (4), the atmosphere communicating pipe (401) is vertical, a liquid injection pipe (402) is installed at the top end of the absorption concentration device (4), and a liquid discharge port (403) is installed at one end of the absorption concentration device (4).

2. The device for absorbing volatile harmful gases in a nuclear power plant according to claim 1, wherein the flange interface is connected with an ammonia gas outlet, the ammonia gas outlet conveys ammonia gas to the liquid feeding pipe (2), the ammonia gas outlet is connected with the mother liquor barrel (1) through the liquid feeding pipe (2) through a pipeline, the ball valve (201) is installed on the surface of the liquid feeding pipe (2), and a wireless controller is installed inside the ball valve (201).

3. The device for absorbing volatile harmful gases in nuclear power plants according to claim 1, characterized in that the connecting disc is arranged on the top surface of the mother liquid barrel (1), the connecting disc is of a detachable structure, the mother liquid barrel (1) is connected with the liquid feeding pipe (2) and the communicating pipe (3) through the connecting disc, and the mother liquid barrel (1) and the absorption concentration device (4) are connected through the communicating pipe (3) by a pipeline.

4. The device for absorbing volatile harmful gases in nuclear power plant according to claim 3, characterized in that the one-way breather valve (301) is arranged on the top side of the mother liquor barrel (1), and the inside of the one-way breather valve (301) is provided with a connecting device which connects the mother liquor barrel (1) and the outside air.

5. The device for absorbing volatile harmful gases in a nuclear power plant according to claim 1, wherein the atmosphere communicating pipe (401) is connected to the outside of the plant, one end of the liquid injection pipe (402) is connected to a desalted water input device, and desalted water is arranged inside the desalted water input device.

6. The device for absorbing volatile harmful gases of a nuclear power plant according to claim 5, characterized in that a drain valve (4031) is installed inside the drain port (403), and a wireless controller is installed inside the drain valve (4031).

7. The device for absorbing volatile harmful gases in a nuclear power plant according to claim 6, wherein the liquid injection pipe (402) and the check valve (302) are both provided with a remote valve inside, a wireless controller is arranged inside the remote valve, the wireless controller is wirelessly connected with a host, and the wireless controller is a honeycomb network.