CN217213185U

CN217213185U - Flow module device for quickly detecting air tritium-carbon sampler

Info

Publication number: CN217213185U
Application number: CN202122752049.0U
Authority: CN
Inventors: 王希旭; 徐晋; 周英东; 汪焕
Original assignee: Shanghai Hapstar Mechanical And Electrical Equipment Co ltd; Cgn Huizhou Nuclear Power Co ltd; China General Nuclear Power Corp
Current assignee: Shanghai Hapstar Mechanical And Electrical Equipment Co ltd; Cgn Huizhou Nuclear Power Co ltd; China General Nuclear Power Corp
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-08-16
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a flow module device for quickly calibrating an air tritium-carbon sampler, which comprises a base, wherein a pulley assembly is arranged below the base, and a measuring pipeline is arranged above the base; the measuring pipeline comprises a first measuring gas circuit and a second measuring gas circuit which are connected in parallel; a first mass flowmeter is arranged on the first measuring gas path, and first quick connectors are respectively arranged at two ends of the first mass flowmeter; a second mass flowmeter is arranged on the second measuring gas path, and second quick connectors are respectively arranged at two ends of the second mass flowmeter; and a three-way valve is arranged at the joint of the first ends of the first measurement gas circuit and the second measurement gas circuit so as to cut off or conduct the first measurement gas circuit or the second measurement gas circuit. This a flow module device for quick examination of air tritium carbon sampler adopts drawer type structure, and the device of being convenient for takes out fast, and it is equipped with two sets of mass flow meter, can realize that air tritium carbon sampler need not to shut down and can change mass flow meter, provides work efficiency, and reducible staff receives the radiant quantity.

Description

Flow module device for quickly detecting air tritium-carbon sampler

Technical Field

The utility model relates to a nuclear power detects technical field, especially relates to a flow module device that is used for quick examination of air tritium carbon sampler.

Background

Nuclear power plants need to monitor gaseous tritium carbon that is vented to the environment through a chimney. When tritium carbon in the air is collected, an air tritium carbon sampler needs to be arranged in the auxiliary plant of the nuclear island, and the instrument achieves the functions of sampling and collecting organic and inorganic tritium carbon by utilizing the catalysis of a catalyst and the absorption of a specific solvent. Because the sampling volume needs to participate in the subsequent calculation of the tritium-carbon specific activity, a mass flow meter is arranged on the air tritium-carbon sampler.

In the correlation technique, only be provided with a non-detachable flowmeter on this air tritium carbon sampler, it is specific, traditional air tritium carbon sampler adopts the flowmeter welding on the circuit board, regularly send to the air tritium carbon sampler that need disintegrate before the measurement institute examination flowmeter, and this flowmeter is actually flow sensor, can only export real-time air flow rate, needs the manual work to convert into the standard situation. Furthermore, the sample collected by the sampler has radioactivity and is continuously sampled in the nuclear island auxiliary factory, the whole device needs to be disassembled when the flowmeter is verified, the flowmeter is taken out to be decontaminated and taken out of the control area for verification, and the instrument is not available during verification.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a flow module device that is used for air tritium carbon sampler to examine and determine fast.

The utility model provides a technical scheme that its technical problem adopted is: constructing a flow module device for quickly calibrating an air tritium-carbon sampler, wherein the flow module device comprises a base, a pulley assembly is arranged below the base, and a measuring pipeline is arranged above the base;

the measuring pipeline comprises a first measuring gas circuit and a second measuring gas circuit which are connected in parallel; a first mass flow meter is arranged on the first measuring gas path, and first quick connectors are respectively arranged at two ends of the first mass flow meter; a second mass flowmeter is arranged on the second measuring gas path, and second quick connectors are respectively arranged at two ends of the second mass flowmeter;

and a three-way valve is arranged at the joint of the first end of the first measuring gas circuit and the first end of the second measuring gas circuit so as to cut off or conduct the first measuring gas circuit or the second measuring gas circuit.

Preferably, the base is a flat plate structure, and one side of the base is provided with a handle.

Preferably, the base is a stainless steel base.

Preferably, the pulley assembly comprises four pulleys respectively arranged at four corners of the base.

Preferably, the pulley is a roller pulley.

Preferably, the first mass flow meter and the second mass flow meter are both electronic gas mass flow meters.

Preferably, the three-way valve is a 304 stainless steel T-shaped three-way ball valve.

Preferably, the first quick connector and the second quick connector are both quick connectors with valves.

Implement the utility model discloses following beneficial effect has: this a flow module device for quick examination of air tritium carbon sampler adopts drawer type structure, and the device of being convenient for takes out fast, and it is equipped with two sets of mass flow meter, can realize that air tritium carbon sampler need not to shut down and can change mass flow meter, provides work efficiency, and reducible staff receives the radiant quantity.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic structural diagram of the flow module device for the rapid calibration of the air tritium-carbon sampler.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", and the like are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present technical solution, and do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Please refer to fig. 1, which is a flow module apparatus for rapid calibration of air tritium-carbon sampler according to the present invention, which includes a base 1, a pulley assembly is disposed below the base 1, and a measuring pipeline is disposed above the base 1.

In the present embodiment, the base 1 is a flat plate structure, such as a square plate structure, or a rectangular plate structure, and of course, the base 1 may also be a box structure. A handle 11 is arranged on one side surface of the base 1, so that the operation of an operator is convenient, the handle 11 can be of an integral structure with the base 1, and can also be in threaded connection with the base 1, for example, the handle can be connected and fixed through bolts or screws.

Preferably, this base 1 is the stainless steel base, and pulley assembly is including locating four pulleys 12 of 1 four edges of base respectively, and pulley 12 is the roller bearing pulley, makes things convenient for the device to take out and put back in from the air tritium carbon sampler, and is corresponding, can be equipped with slide etc. in this air tritium carbon sampler.

Preferably, the measuring pipeline comprises a first measuring gas circuit 2 and a second measuring gas circuit 3 which are connected in parallel; the first measuring gas circuit 2 is provided with a first mass flow meter 21, and two ends of the first mass flow meter 21 are respectively provided with a first quick connector 22. Correspondingly, a second mass flow meter 31 is arranged on the second measurement air path 3, and second quick connectors 32 are respectively arranged at two ends of the second mass flow meter 31.

Further, a three-way valve 4 is arranged at a joint of the first end of the first measurement gas path 2 and the first end of the second measurement gas path 3, so as to cut off or conduct the first measurement gas path 2 or the second measurement gas path 3. The first end is the inlet end, i.e., the right end of the figure, and the left end of the figure is the outlet end.

In the present embodiment, the first mass flow meter 21 and the second mass flow meter 31 are both electronic gas mass flow meters. Electronic gas mass flowmeters can provide a direct gas mass flow measurement (i.e. standard volume) and do not need to compensate for gas temperature or pressure (within specified limits), greatly reducing the workload, its monitoring range: 10SCCM-1000SLM, and the electronic gas mass flow meter can adopt a 316 stainless steel structure, so that the electronic gas mass flow meter is suitable for applications with nuclear and electric field corrosion resistance requirements.

Preferably, the three-way valve 4 is a 304 stainless steel T-shaped three-way ball valve, such as a Q11F-16P type 304 stainless steel T-shaped three-way ball valve, and the design of the ball valve ensures the sealing performance during gas circuit switching; nominal pressure: 2.5 MPa.

Preferably, the first quick connector 22 and the second quick connector 32 are both valved quick connectors. The stop valve quick connector with the plug and the socket capable of being selected to be automatically closed has the advantages that: the plugging and unplugging are convenient; the connection of the gas path and the atmosphere is cut off immediately after the joint is pulled out, so that the leakage of the sampled gas is avoided; the material is as follows: 17% chromium stainless steel and a sealing ring made of butadiene-acrylonitrile rubber; maximum working pressure: 50 bar.

It can be understood that this a flow module device for quick examination of air tritium carbon sampler adopts drawer type structure, and the device of being convenient for takes out fast, and it is equipped with two sets of mass flow meter, can realize that air tritium carbon sampler need not to shut down and can change mass flow meter, provides work efficiency, and reducible staff receives the radiant quantity.

It should be understood that the above examples only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A flow module device for rapid verification of an air tritium-carbon sampler is characterized by comprising a base (1), wherein a pulley assembly is arranged below the base (1), and a measuring pipeline is arranged above the base (1);

the measuring pipeline comprises a first measuring gas circuit (2) and a second measuring gas circuit (3) which are connected in parallel; a first mass flowmeter (21) is arranged on the first measuring gas circuit (2), and first quick connectors (22) are respectively arranged at two ends of the first mass flowmeter (21); a second mass flowmeter (31) is arranged on the second measuring gas circuit (3), and second quick connectors (32) are respectively arranged at two ends of the second mass flowmeter (31);

and a three-way valve (4) is arranged at the joint of the first end of the first measurement gas circuit (2) and the first end of the second measurement gas circuit (3) so as to cut off or conduct the first measurement gas circuit (2) or the second measurement gas circuit (3).

2. The flow module device for the rapid verification of an air tritium-carbon sampler according to claim 1, characterized in that the base (1) is a flat plate structure, and a handle (11) is arranged on one side of the base.

3. A flow module device for the rapid assay of air tritium-carbon samplers according to claim 2 characterised in that the base (1) is a stainless steel base.

4. A flow module device for the rapid assay of air tritium-carbon samplers according to any of claims 2 or 3 characterized in that the pulley assembly comprises four pulleys (12) respectively located at four corners of the base (1).

5. A flow module apparatus for rapid assay of air tritium-carbon sampler as claimed in claim 4 characterized by that the pulley (12) is a roller pulley.

6. The flow module apparatus for rapid assay of air tritium-carbon sampler as claimed in claim 1, characterized in that the first mass flow meter (21) and the second mass flow meter (31) are both electronic gas mass flow meters.

7. The flow module apparatus for the rapid certification of an air tritium-carbon sampler according to claim 1, characterized in that the three-way valve (4) is a 304 stainless steel T-shaped three-way ball valve.

8. The flow module apparatus for the rapid assay of an air tritium-carbon sampler according to claim 1, characterized in that the first quick connector (22) and the second quick connector (32) are both valved quick connectors.