阅读说明：本技术 一种多区域空间内漏量测量试验装置 (Leakage measurement test device in multizone space ) 是由 邱继林 张渊 韩丽红 侯建荣 丘丹圭 刘群 张雪平 李彦樟 陈建利 张治权 吴波 于 2021-07-29 设计创作，主要内容包括：本发明公开了一种多区域空间内漏量测量试验装置,包括至少两个试验空间、送风系统、排风系统、交换系统和监测控制系统,送风系统包括送风风机、送风管和第一连接座,排风系统包括排风风机、排风管和第二连接座,监测控制系统包括压差计、温湿度计、流量计、阀门和电脑,试验空间上均安装有第一连接座和第二连接座,送风管的一端连通送风风机、另一端连通试验空间,保证试验空间内保持正压,排风管的一端连通排风风机、另一端通过第二连接座连通试验空间,保证试验空间内的空气流动,每一个试验空间外均布置有压差计和温湿度计,每一根风管上均布置有流量计和阀门,可以监测到每一个试验空间内的气体的变化,保证精准测定主控室内漏量。(The invention discloses a multi-zone space internal leakage measurement test device, which comprises at least two test spaces, an air supply system, an exhaust system, an exchange system and a monitoring control system, wherein the air supply system comprises an air supply fan, an air supply pipe and a first connecting seat, the exhaust system comprises an exhaust fan, an exhaust pipe and a second connecting seat, the monitoring control system comprises a differential pressure gauge, a hygrothermograph, a flowmeter, a valve and a computer, the test spaces are respectively provided with the first connecting seat and the second connecting seat, one end of the air supply pipe is communicated with the air supply fan, the other end of the air supply pipe is communicated with the test spaces, positive pressure is ensured to be kept in the test spaces, one end of the exhaust pipe is communicated with the exhaust fan, the other end of the exhaust pipe is communicated with the test spaces through the second connecting seat, air flow in the test spaces is ensured, the differential pressure gauge and the hygrothermograph are respectively arranged outside each test space, the flow gauge and the valve are respectively arranged on each air pipe, the change of the gas in each test space can be monitored, and the accurate measurement of the indoor leakage of the main control room is guaranteed.)

1. The utility model provides a leak source volume measurement test device in multizone space which characterized in that: including two at least test spaces, air supply system, exhaust system, exchange system and monitoring control system, wherein:

every two adjacent test spaces are communicated through the exchange system;

the air supply system comprises an air supply fan, an air supply pipe and first connecting seats, the first connecting seats are mounted on each test space, one end of the air supply pipe is communicated with the air supply fan, and the other end of the air supply pipe is communicated with the test space through the first connecting seats;

the air exhaust system comprises an air exhaust fan, an air exhaust pipe and second connecting seats, the second connecting seats are mounted on each test space, one end of the air exhaust pipe is communicated with the air exhaust fan, and the other end of the air exhaust pipe is communicated with the test space through the second connecting seats;

the monitoring control system comprises a differential pressure gauge, a hygrothermograph, a flowmeter, valves and a computer, wherein the differential pressure gauge and the hygrothermograph are arranged outside each test space, the flowmeter and the valves are arranged on each air pipe, the computer is arranged outside the test space, and the computer is electrically connected with the flowmeters.

2. The multi-region spatial internal leakage measurement test device of claim 1, wherein: the number of the test spaces is three, the three test spaces are respectively a first test space, a second test space and a third test space, the first test space is arranged on one side of the corridor channel, and the second test space and the third test space are arranged on the other side of the corridor channel; the three test spaces are communicated with each other in pairs through the exchange system.

3. The multi-region spatial internal leakage measurement test device of claim 2, wherein: the exchange system comprises three exchange pipelines and six third connecting seats, two third connecting seats are mounted on each test space, and two ends of one exchange pipeline are respectively communicated with one third connecting seat on the first test space and one third connecting seat on the second test space; and two ends of the other exchange pipeline are respectively communicated with the other third connecting seat in the first test space and one third connecting seat in the third test space, and two ends of the last exchange pipeline are respectively communicated with the other third connecting seat in the second test space and the other third connecting seat in the third test space.

4. The multi-region spatial internal leakage measurement test device of claim 2, wherein: the three first connection seats are provided with a main air supply pipeline and three branch air supply pipelines, the three first connection seats are respectively installed in the three test spaces, one end of the main air supply pipeline is communicated with the air supply fan, one end of each of the three branch air supply pipelines is communicated with the main air supply pipeline, and the other end of each of the three branch air supply pipelines is communicated with the three test spaces through the three first connection seats in a sealing mode.

5. The multi-region spatial internal leakage measurement test device of claim 4, wherein: the second connecting seat has threely, the exhaust pipe has a main exhaust pipe and three branch exhaust pipe, and is three the second connecting seat is installed respectively in threely experimental space, the one end intercommunication of main exhaust pipe the fan of airing exhaust, it is three the one end of branch exhaust pipe all communicates main exhaust pipe, it is three the other end of branch exhaust pipe is respectively through threely the sealed intercommunication of second connecting seat is three experimental space.

6. The multi-region spatial internal leakage measurement test device according to any one of claims 1 to 5, wherein: the sample injection and sample collection assembly comprises a three-way joint and a switch valve, a first interface of the three-way joint is communicated with the other end of the air supply pipe, a second interface of the three-way joint is communicated with the first connecting seat, the switch valve is installed on a third interface of the three-way joint, and the third interface of the three-way joint is used for injecting or collecting samples.

7. The multi-region spatial internal leakage measurement test device according to any one of claims 1 to 5, wherein: the first connecting seat and the test space are fixedly sealed by sealing gaskets and sealing glue, and the second connecting seat and the test space are fixedly sealed by sealing gaskets and sealing glue.

8. The multi-region spatial internal leakage measurement test device according to any one of claims 1 to 5, wherein: the test space comprises a main body frame and a wall body, the wall body is bonded on the main body frame in a sealing mode, the main body frame is bonded on the ground in a sealing mode, and a closed space is formed between the wall body and the ground.

9. The multi-region spatial internal leakage measurement test device of claim 8, wherein: the wall body is a transparent wall body.

10. The multi-region spatial internal leakage measurement test device according to any one of claims 1 to 5, wherein: the differential pressure meter, the hygrothermograph and the flowmeter are all digital display electronic type.

Technical Field

The invention relates to the technical field of test devices, in particular to a multi-region space internal leakage measurement test device.

Background

The nuclear power plant master control room is an operation control center of a nuclear power plant, and has the functions of ensuring the safe operation of a reactor under normal working conditions and having the capability of coping with design benchmark accidents when the safe shutdown is realized under abnormal and accident working conditions. In the nuclear power plant accident period, in order to enable main control room personnel to insist on a post to relieve the accident consequence, certain habitability of the main control room must be ensured. In performing master control room habitability evaluations, measurement of leakage of unfiltered air into the master control room is a key factor.

The test of China on the habitability area of the main control room of the existing nuclear power plant is generally only used for debugging the habitability ventilation system so as to verify whether the system can maintain the positive pressure in the habitability area of the main control room, and the test process of the leakage in the main control room is not considered. In the case of radiological accidents, the current habitability assessment does not take into account the relationship between unfiltered leaks and accident fresh air volume, but rather calculates the exposure dose of the workers in the habitability area using a fixed leakage volume. Therefore, the sensitivity analysis of accident fresh air volume of the main control room is gradually one of the research directions for evaluating the habitability of the main control room in reducing non-filtering leakage and reducing the radiation dose of workers in habitability areas or other toxic and harmful effects.

At present, the international technology for measuring the leakage in the main control room of the nuclear power plant is mainly measuring the leakage in an individual area, and the related work of the leakage test in the multi-area range of the main control room of the nuclear power plant is not reported yet.

Disclosure of Invention

The invention aims to solve the technical problem of providing a multi-region space internal leakage measurement test device capable of carrying out internal leakage test on a multi-region range of a main control room of a nuclear power plant.

In order to solve the technical problem, the invention provides a multi-region space internal leakage measurement test device, which comprises at least two test spaces, an air supply system, an air exhaust system, an exchange system and a monitoring control system, wherein:

every two adjacent test spaces are communicated through an exchange system;

the air supply system comprises an air supply fan, an air supply pipe and first connecting seats, the first connecting seats are mounted on each test space, one end of the air supply pipe is communicated with the air supply fan, and the other end of the air supply pipe is communicated with the test space through the first connecting seats;

the air exhaust system comprises an air exhaust fan, an air exhaust pipe and second connecting seats, the second connecting seats are mounted on each test space, one end of the air exhaust pipe is communicated with the air exhaust fan, and the other end of the air exhaust pipe is communicated with the test space through the second connecting seats;

the monitoring control system comprises a differential pressure gauge, a hygrothermograph, a flowmeter, valves and a computer, wherein the differential pressure gauge and the hygrothermograph are arranged outside each test space, the flowmeter and the valves are arranged on each air pipe, the computer is arranged outside the test spaces, and the computer is electrically connected with the flowmeters.

Furthermore, three test spaces are provided, wherein the three test spaces are respectively a first test space, a second test space and a third test space, the first test space is arranged on one side of the corridor channel, and the second test space and the third test space are arranged on the other side of the corridor channel; the three test spaces are communicated with each other two by two through an exchange system.

Furthermore, the exchange system comprises three exchange pipelines and six third connecting seats, two third connecting seats are mounted on each test space, and two ends of one exchange pipeline are respectively communicated with one third connecting seat on the first test space and one third connecting seat on the second test space; two ends of the other exchange pipeline are respectively communicated with the other third connecting seat in the first test space and one third connecting seat in the third test space, and two ends of the last exchange pipeline are respectively communicated with the other third connecting seat in the second test space and the other third connecting seat in the third test space.

Further, first connection seat has threely, and the blast pipe has a main supply air duct and three branch supply air duct, and three first connection seat is installed respectively in three experimental space, and main supply air duct's one end intercommunication air supply fan, three branch supply air duct's one end all communicate main supply air duct, and three branch supply air duct's the other end is sealed the three experimental space of intercommunication through three first connection seat respectively.

Further, the second connecting seat has threely, and the exhaust pipe has a main exhaust pipe and three branch exhaust pipe, and three second connecting seat is installed respectively in three test space, and the fan of airing exhaust is fed through to the one end of main exhaust pipe, and the one end of three branch exhaust pipe all feeds through main exhaust pipe, and the other end of three branch exhaust pipe is sealed the three test space of intercommunication through three second connecting seat respectively.

Furthermore, leakage measurement test device still includes sample injection and sample collection subassembly in the multizone space, and the sample injection includes three way connection and ooff valve with sample collection subassembly, and three way connection's first interface intercommunication blast pipe's the other end, and three way connection's first connecting seat of second interface intercommunication, ooff valve install on three way connection's third interface, and three way connection's third interface is used for injecting into or gathering the sample.

Furthermore, the first connecting seat and the test space are fixedly sealed through a sealing gasket and a sealing adhesive, and the second connecting seat and the test space are fixedly sealed through a sealing gasket and a sealing adhesive.

Furthermore, the test space comprises a main body frame and a wall body, the wall body is bonded on the main body frame in a sealing mode, the main body frame is bonded on the ground in a sealing mode, and a closed space is formed between the wall body and the ground.

Furthermore, the wall body is a transparent wall body.

Furthermore, the differential pressure meter, the hygrothermograph and the flowmeter are all digital display electronic type.

The invention has the following effects: the multi-region space internal leakage quantity measuring test device can measure the internal leakage quantity of a main control room of a multi-region nuclear power plant, a first connecting seat is arranged on each test space, one end of an air supply pipe is communicated with an air supply fan, the other end of the air supply pipe is communicated with the test space through the first connecting seat, positive pressure is kept in the test space, a second connecting seat is arranged on each test space, one end of an exhaust pipe is communicated with an air exhaust fan, the other end of the exhaust pipe is communicated with the test space through the second connecting seat, air flow in the test space is guaranteed, a pressure difference meter and a hygrothermograph are arranged outside each test space, a flow meter and a valve are arranged on each air pipe, the change of gas in each test space can be monitored, and accurate measurement of the internal leakage quantity of the main control room is guaranteed.

Drawings

FIG. 1 is a schematic structural diagram of a multi-region spatial internal leakage measurement test apparatus according to the present invention.

Detailed Description

The structure of the multi-region space internal leakage measurement test device is shown in fig. 1. The multi-region space internal leakage measurement test device comprises a test space 1, an air supply system 2, an exhaust system 3, an exchange system 4 and a monitoring control system 5. Wherein: three test spaces 1 are provided, and the three test spaces 1 are used for simulating a multi-region range of a master control room of a nuclear power plant; specifically, there are three test spaces 1 in the present embodiment, the three test spaces 1 are a first test space 11, a second test space 12 and a third test space 13, respectively, the first test space 11 is disposed on one side of the corridor passage, and the second test space 12 and the third test space 13 are disposed on the other side of the corridor passage; the three test spaces 1 are connected in pairs by means of a switching system 4. That is to say, the test spaces 1 are respectively arranged at two sides of the corridor channel, and of course, according to the actual arrangement condition of the main control room of the nuclear power plant, the three test spaces 1 may also be arranged at the same side of the corridor channel for simulating the real scene of the main control room of the nuclear power plant. It is worth noting that the test space 1 comprises a main body frame and a wall body, wherein the wall body is hermetically bonded on the main body frame, the main body frame is hermetically bonded on the ground, and a closed space is formed between the wall body and the ground. The wall body is a transparent wall body, so that the condition of internal airflow can be conveniently observed outside the space. And a sealing door is further arranged on the wall body, so that the tester can conveniently pass in and out to operate related equipment.

The exchanging system 4 of the present embodiment includes three exchanging pipes 41 and six third connecting seats 42, two third connecting seats 42 are installed on each testing space 1, and two ends of one exchanging pipe 41 are respectively communicated with one third connecting seat 42 on the first testing space 11 and one third connecting seat 42 on the second testing space 12; two ends of the other exchanging pipe 41 are respectively communicated with the other third connecting seat 42 on the first testing space 11 and one third connecting seat 42 on the third testing space 13, and two ends of the last exchanging pipe 41 are respectively communicated with the other third connecting seat 42 on the second testing space 12 and the other third connecting seat 42 on the third testing space 13. By means of the communication of the exchange system 4, the gas inside the three test spaces 1 is exchanged between the three test spaces 1.

Further, the air supply system 2 of the present embodiment includes an air supply fan 21, an air supply pipe 22 and first connection seats 23, and each test space 1 is provided with the first connection seats 23, that is, there are three first connection seats 23, and the three first connection seats 23 are respectively installed in the three test spaces 1; one end intercommunication air supply fan 21 of blast pipe 22, the other end of blast pipe 22 passes through first connecting seat 23 intercommunication test space 1, that is to say, blast pipe 22 has a main blast pipe 22 way and three branch blast pipe 22 way, the one end intercommunication air supply fan 21 that main blast pipe 22 said, the one end that three branch blast pipe 22 said all communicates main blast pipe 22 way, the other end that three branch blast pipe 22 said communicates three test space 1 through three first connecting seat 23 is sealed respectively

Further, the exhaust system 3 of the present embodiment includes an exhaust fan 31, an exhaust duct 32 and second connecting seats 33, the second connecting seats 33 are installed on each test space 1, that is, there are three second connecting seats 33, and the three second connecting seats 33 are respectively installed in the three test spaces 1; one end of the exhaust duct 32 is communicated with the exhaust fan 31, the other end of the exhaust duct 32 is communicated with the test space 1 through the second connecting seat 33, that is, the exhaust duct 32 has a main exhaust duct 32 and three branch exhaust ducts 32, one end of the main exhaust duct 32 is communicated with the exhaust fan 31, one ends of the three branch exhaust ducts 32 are communicated with the main exhaust duct 32, and the other ends of the three branch exhaust ducts 32 are respectively communicated with the three test spaces 1 through the three second connecting seats 33. It should be noted that each of the pipes of this embodiment has a valve mounted thereon.

Further, the monitoring and control system 5 of the present embodiment includes a differential pressure gauge 51, a thermo-hygrometer 52, a flow meter 53, a valve and a computer 54, the differential pressure gauge 51 and the thermo-hygrometer 52 are disposed outside each test space 1, the flow meter 53 is disposed on each air duct, the computer 54 is disposed outside the test space 1, and the computer 54 is electrically connected to the flow meter 53. It should be noted that the differential pressure gauge 51, the thermo-hygrometer 52 and the flow meter 53 are all digital electronic type. The computer 54 and the power supply of the differential pressure gauge 51, the hygrothermograph 52 and the flowmeter 53 are in an alternating current mode and a direct current mode, can be connected with a 220V power supply through a power adapter for use, can also use dry batteries to realize real-time data transmission, can display each parameter value on a display in real time through the control software of the computer 54, and is convenient for centralized data monitoring.

Further, leakage measurement test device still includes examination sample injection and sample collection subassembly in the multizone space, and the sample injection includes three way connection and ooff valve with sample collection subassembly, and three way connection's first interface intercommunication blast pipe 22's the other end, three way connection's second interface intercommunication first connector base 23, and the ooff valve is installed on three way connection's third interface, and three way connection's third interface is used for injecting into or gathering the sample.

Further, the first connecting seat 23, the second connecting seat 33 and the third connecting seat 42 of the present embodiment have the same structure, and the first connecting seat 23, the second connecting seat 33 and the third connecting seat 42 are fixedly sealed with the test space 1 by sealing gaskets and sealing glue. Particularly, the mounting hole has been seted up on test space 1's the top, and the connecting seat adds sealed fixed seal installation in the mounting hole of gluing through sealed the pad, and the size of mounting hole is not more than the hole size of connecting seat, and corresponding pipeline is then seal installation on the hole of connecting seat to be linked together with test space 1 inside.

The multi-region space internal leakage measurement test device can be used for the internal leakage measurement simulation test of the main control room of the multi-region nuclear power plant, a first connecting seat 23 is arranged on each test space 1, one end of an air supply pipe 22 is communicated with an air supply fan 21, the other end of the air supply pipe 22 is communicated with the test space 1 through the first connecting seat 23, so that positive pressure is kept in the test space 1, and each test space 1 is provided with a second connecting seat 33, one end of the exhaust pipe 32 is communicated with the exhaust fan 31, the other end of the exhaust pipe 32 is communicated with the test space 1 through the second connecting seat 33, the air flow in the test space is ensured, a differential pressure gauge 51 and a hygrothermograph 52 are arranged outside each test space 1, each air pipe is provided with a flowmeter 53, the change of the gas in each test space 1 can be monitored, and the accurate measurement of the leakage in the main control chamber is guaranteed.

The device of the present invention is not limited to the embodiments of the specific embodiments, and other embodiments can be derived by those skilled in the art from the technical solutions of the present invention, and the device of the present invention also belongs to the technical innovation and protection scope of the present invention.