CN114068047A

CN114068047A - Auxiliary water inlet device for hydrostatic test

Info

Publication number: CN114068047A
Application number: CN202111348566.XA
Authority: CN
Inventors: 姜兴龙; 步兆雪; 杨明; 张奔; 刘轩福
Original assignee: China Nuclear Industry Maintenance Co Ltd
Current assignee: China Nuclear Industry Maintenance Co Ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-02-18
Anticipated expiration: 2041-11-15
Also published as: CN114068047B

Abstract

The water inlet mechanism is used for sealing the water outlet of the first chamber after the water enters the second chamber from the air inlet of the second chamber; the auxiliary water inlet device for the hydraulic test can ensure that workers do not need to be too close to the container, and particularly for a nuclear-grade container, the irradiation dose of the workers can be reduced; the water closing mechanism is provided with a water inlet path of the water back cutting container in the second chamber, so that the workload of the whole monitoring process of the working personnel can be reduced, the irradiation dose can be further reduced, the use amount and the waste amount of protective articles can be reduced, and the production cost is reduced.

Description

Auxiliary water inlet device for hydrostatic test

Technical Field

The application relates to the technical field of hydrostatic tests, in particular to a hydrostatic test auxiliary water inlet device.

Background

Waste water and waste liquid generated in the nuclear island are stored in the container, so that the structural safety and reliability of the container are very important. The nuclear-grade container water pressure checking and detecting work is an important work for guaranteeing safe and stable operation of nuclear power, and a container water pressure test work is required in daily production and shutdown overhaul work of a nuclear power station. In a nuclear power plant, a plurality of containers are used for storing radioactive media, the containers correspondingly have radioactivity, in-service inspection work on the containers needs to be carried out in a special working environment, personnel need to wear special protective articles to enter the work, special person monitoring is needed, the personnel are bound to face radiation dose irradiation, in order to share the dose for a plurality of people, the additional protective articles need to be used for a plurality of times, resource waste is caused, the amount of waste is increased, and the cost for subsequent waste treatment is also increased. The volumes of different containers are different in size and different in water inlet time, and generally, the larger the volume is, the longer the water inlet time is, and the larger the total dose irradiated by a worker is. The leakage of radioactive substances can also be easily caused if the container has a water leakage phenomenon.

Disclosure of Invention

An object of the embodiment of the application is to provide a water installations is assisted in hydrostatic test aims at solving the technical problem that the staff who exists among the current container hydrostatic test can face radiation dose and shine and the cost of labor is high, the protection is with high costs.

The embodiment of this application is realized like this, a hydrostatic test assists water installations for to having water inlet and gas outlet wait to test the container in intake, include:

the water inlet of the first chamber is communicated with a water source, the water outlet of the first chamber is communicated with the water inlet of the container, and the air inlet of the second chamber is communicated with the air outlet of the container; and

and the water closing mechanism is used for closing the water outlet of the first chamber after the water is fed into the second chamber from the air inlet of the second chamber.

In one embodiment, the water closing mechanism includes a first floating ball disposed in the first chamber, a floating ball release member disposed in the first chamber, and a floating member disposed in the second chamber, the floating ball release member and the floating member are connected to each other through a partition between the first chamber and the second chamber, the floating member is configured to drive the floating ball release member to operate after water enters the second chamber, and the floating ball release member can release the first floating ball after operating, so that the first floating ball can rise by buoyancy and close the water outlet of the first chamber.

In one embodiment, the floating ball release member comprises a gate plate, the floating member comprises a second floating ball, a crank connected with the second floating ball, and a connecting rod connected with one end of the crank, which is far away from the second floating ball, the connecting rod penetrates through the partition plate and is connected with the gate plate, and the connecting rod can rotate on the partition plate around the axis of the connecting rod.

In one embodiment, the shutter is provided with at least one through hole penetrating through opposite surfaces thereof.

In one embodiment, the gate plate is in an arc plate shape, the straight edge of the gate plate is connected with the connecting rod and is close to the partition plate, and the arc edge of the gate plate is close to the inner wall of one side, far away from the partition plate, of the first chamber.

In one embodiment, the hydraulic test auxiliary water inlet device further comprises an automatic exhaust assembly communicated with the second chamber, and the automatic exhaust assembly comprises an exhaust cylinder communicated with the air outlet of the second chamber, and a third floating ball arranged in the exhaust cylinder and used for sealing the air outlet of the second chamber.

In one embodiment, the hydraulic test auxiliary water inlet device further comprises a pressure relief valve in communication with the first chamber.

In one embodiment, the hydrostatic test auxiliary water intake device further comprises a safety valve in communication with the second chamber.

In one embodiment, the hydraulic test auxiliary water inlet device further comprises a filter arranged between the water outlet of the first chamber and the water inlet of the container.

In one embodiment, the hydraulic test auxiliary water inlet device further comprises a pressure gauge for monitoring the pressure in the first chamber.

The embodiment of the application provides a hydrostatic test assists water installations, its beneficial effect lies in:

the auxiliary water inlet device for the hydraulic test provided by the embodiment of the application adopts the cylinder body with the first cavity and the second cavity which are independent to each other, the cylinder body is connected with the water inlet and the air outlet of the container, water enters the container through the first cavity, after the container is full of water, redundant inlet water flows to the second cavity, the water entering the second cavity acts on the water closing mechanism, and then the water closing mechanism can close the water inlet of the first cavity; the water closing mechanism is provided with a water inlet path of the water back-cutting container in the second chamber, so that the workload of the whole monitoring process of the working personnel can be reduced, the irradiation dose can be further reduced, the use amount of protective articles and the waste amount can be reduced, and the production cost can be reduced; simultaneously, unnecessary water flow direction second cavity carries out temporary storage, can avoid intaking the emergence of the back water running phenomenon of accomplishing, also can avoid radioactive medium's leakage.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic perspective view of a hydraulic test auxiliary water inlet device provided in an embodiment of the present application;

FIG. 2 is a front view of the hydrostatic test auxiliary water intake apparatus shown in FIG. 1;

FIG. 3 is a top view of the hydrostatic test auxiliary water intake apparatus shown in FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic perspective view of an automatic floating ball water shutoff mechanism in the hydrostatic test auxiliary water inlet apparatus shown in FIG. 1;

FIG. 6 is a top view of an automatic floating ball water shut-off mechanism in the hydrostatic test auxiliary water inlet apparatus shown in FIG. 1;

FIG. 7 is a front view of an automatic floating ball water shut-off mechanism in the hydrostatic test auxiliary water inlet apparatus shown in FIG. 1;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 6;

fig. 9 is an enlarged view at C in fig. 8.

The designations in the figures mean:

100-a water pressure test auxiliary water inlet device;

1-cylinder body, 11-cylinder body, 12-upper cover plate, 13-lower cover plate, 14-first cavity, 15-second cavity and 16-clapboard;

2-water closing mechanism, 21-first floating ball, 22-floating ball release piece, 221-flashboard, 2210-through hole, 23-floating piece, 231-second floating ball, 232-crank, 233-connecting rod and 24-sealed bearing;

3-automatic exhaust component, 31-exhaust cylinder, 32-third floating ball;

4-safety valve, 5-water inlet valve, 6-water outlet valve, 7-air inlet valve, 8-filter, 91-pressure relief valve, 92-check valve and 93-pressure gauge.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to or disposed on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", 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, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

Referring to fig. 1, 2 and 4, an embodiment of the present application provides a hydraulic test auxiliary water inlet apparatus 100 for feeding water into a container to be tested (not shown) having a water inlet and a gas outlet. The container to be tested (hereinafter referred to as container) is kept at a certain pressure and time after being filled with water, and the sealing safety of the container can be detected.

Specifically, as shown in fig. 1, 2 and 4, the hydraulic test auxiliary water inlet device 100 includes a cylinder body 1 and a water closing mechanism 2, the cylinder body 1 has a first chamber 14 and a second chamber 15 which are independent, a water inlet of the first chamber 14 is used for communicating with a water source (not shown), a water outlet of the first chamber 14 is used for communicating with a water inlet of a container, a water inlet of the second chamber 15 is used for communicating with a water outlet of the container, and the water closing mechanism 2 is used for automatically closing the water outlet of the first chamber 14 after the second chamber 15 is filled with water from the water inlet thereof. The flow of water in the first chamber 14 and the inflow of water in the second chamber 15 are not affected by each other.

It will be appreciated, however, that when water flows into the container via the first chamber 14, air in the container flows through its air outlet to the second chamber 15, where the second chamber 15 is not a closed chamber, and air entering the second chamber 15 may be discharged to the outside environment or to a specific space according to specific needs. When the water outlet of the first chamber 14 is not closed after the container is filled with water, the water continues to flow from the air outlet of the container to the air inlet of the second chamber 15 and into the second chamber 15. Then, the water shut-off mechanism 2 shuts off the water outlet of the first chamber 14 in a state where water flows into the second chamber 15. At this point, the filling of the container is completed.

The cylinder 1 is a separate component from the container, and the water outlet of the first chamber 14 and the air inlet of the second chamber 15 may be connected to the container by means of hoses or the like. Thus, the container and the cylinder body 1 can be far away from each other, and the container can be suitable for the condition that workers are inconvenient to get close to the container, such as a nuclear grade container, a bad environment around the container and the like.

The hydraulic test auxiliary water inlet device 100 provided by the embodiment of the application adopts the cylinder body 1 with the first chamber 14 and the second chamber 15 which are independent to each other, and is connected with the water inlet and the air outlet of the container, water enters the container through the first chamber 14, after the container is full of water, redundant inflow water flows to the second chamber 15, the water entering the second chamber 15 acts on the water closing mechanism 2, and then the water closing mechanism 2 can close the water inlet of the first chamber 14, so that the hydraulic test auxiliary water inlet device 100 can prevent workers from being too close to the container, particularly for a nuclear-grade container, and the irradiation dose of the workers can be reduced; the water closing mechanism 2 is provided with a water inlet path of a water back-cutting container in the second chamber 15, so that the workload of the whole monitoring process of the working personnel can be reduced, the irradiation dose can be further reduced, the use amount of protective articles and the waste amount can be reduced, and the production cost can be reduced; meanwhile, the redundant water flows to the second chamber 15 for temporary storage, so that the phenomenon of water leakage after water inflow is finished can be avoided, and leakage of radioactive media can also be avoided.

As shown in fig. 4, the first chamber 14 and the second chamber 15 in the cylinder 1 are partitioned by a partition 16. The shape of the cylinder 1, the shape of the first chamber 14, the shape of the second chamber 15, and the like are not particularly required, and only the respective requirements of water inlet, water outlet, air exhaust, and the like need to be satisfied. The shape of the partition 16 determines the shape of the first chamber 14 and the second chamber 15, and therefore the shape of the partition 16 is also set according to the shape requirements of the first chamber 14 and the second chamber 15.

In the present embodiment, the cylinder 1 is substantially cylindrical. The baffle 16 is generally "L" shaped such that the longitudinal cross-section of the first chamber 14 is L-shaped and the longitudinal cross-section of the second chamber 15 is inverted "L" shaped.

The cylinder block 1 is assembled from a plurality of parts. Specifically, as shown in fig. 4, the cylinder 1 includes a cylinder 11 with two open ends, an upper cover plate 12 covering the upper end of the cylinder 11, and a lower cover plate 13 covering the lower end of the cylinder 11. After the partition 16 and the water closing mechanism 2 are installed inside the cylindrical body 11, the upper cover plate 12 and the lower cover plate 13 are connected to the upper end and the lower end of the cylindrical body 11, respectively.

Specifically, the upper cover plate 12 and the lower cover plate 13 may be detachably connected to the barrel 11 by means of screw and nut fitting, or may be non-detachably connected to the barrel 11 by means of welding or the like. In this embodiment, the upper cover plate 12, the lower cover plate 13 and the cylinder 11 are detachably connected, so that the structures of the hydraulic test auxiliary water inlet device 100 can be easily confirmed, checked, maintained and the like under different conditions.

The water inlet of the first chamber 14 is arranged at a lower position, the water outlet of the first chamber 14 is arranged above, and the water outlet of the first chamber 14 penetrates through the barrel 11 and then is connected with the water inlet of the container.

First, the above-described water shut mechanism 2 will be described specifically.

The water closing mechanism 2 may be a mechanical structure which acts under the buoyancy or gravity of water and closes the water outlet of the first chamber 14; the water closing mechanism 2 may also be a combination of an electric control structure and a mechanical structure, for example, a structure such as a sensor detects water to confirm that water has started to enter the second chamber 15 or that water has reached a certain amount, and then controls the mechanical structure to act to close the water outlet of the first chamber 14.

In one embodiment, the water closing mechanism 2 is an automatic floating ball water closing mechanism, as shown in fig. 5 to 7, the automatic floating ball water closing mechanism includes a first floating ball 21 disposed in the first chamber 14, a floating ball release 22 disposed in the first chamber 14, and a floating member 23 disposed in the second chamber 15, the floating ball release 22 and the floating member 23 are connected to each other via a partition 16, the floating member 23 is configured to drive the floating ball release 22 to operate after water enters the second chamber 15, and the floating ball release 22 can release the first floating ball 21 after operating, so that the first floating ball 21 can move with the water level after being separated from the limit of the floating ball release 22, that is, moves up under the action of buoyancy until the water outlet of the first chamber 14 is closed. That is, in the absence of water or sufficient water in the second chamber 15, the float 23 is held in position and the float release 22 is correspondingly held in position and traps the first float 21.

Specifically, in one embodiment, as shown in fig. 5 and 6, the float release 22 includes a shutter 221, the float 23 includes a second float 231, a crank 232 connected to the second float 231, and a connecting rod 233 connected to an end of the crank 232 away from the second float 231, the connecting rod 233 is connected to the shutter 221 after penetrating the partition 16, and the connecting rod 233 can rotate on the partition 16 around its central axis.

Of course, as shown in fig. 8 and 9, the link 233 may be provided on the partition 16 by the seal bearing 24 to ensure the sealability of the first chamber 14 while allowing the link 233 to rotate.

The link 233 is not vertically disposed, and is preferably horizontally disposed, as shown in fig. 4 and 7.

The automatic floating ball water closing mechanism 2 has the following action modes:

since the crank 232 is disposed obliquely with respect to the connecting rod 233, when there is no water in the second chamber 15, the crank 232 is disposed obliquely downward from the connecting rod 233 to the second float 231 by the gravity of the crank 232 and the second float 231, as shown in fig. 6 and 7. At this time, the shutter 221 is horizontally disposed as shown in fig. 5 and 7. The shutter 221 is sized such that the gap between the edges of the shutter and the inner wall of the first chamber 14 is smaller than the diameter of the first float ball 21. That is, when the second ball 231 is not acted by water, the shutter 221 is horizontally disposed, and the first ball 21 moves upward by the buoyancy but cannot pass through the shutter 221, so that the first ball 21 is held below the lower surface of the shutter 221, the path from the water inlet to the water outlet in the first chamber 14 is communicated, and water can enter the container.

When the container is full of water, the water flowing out of the container is accumulated at the bottom of the second chamber 15, the water level in the second chamber 15 is increased, and the second floating ball 231 moves upward under the action of the buoyancy. Due to the arrangement of the crank 232, the second float 231 does not move upward vertically, but moves upward along a circumference centered on the connecting rod 233 and having a radius of the crank 232. In the process, the second floating ball 231 drives the crank 232 to move upwards in a rotating manner around the center of the connecting rod 233, the connecting rod 233 rotates around the central axis of the connecting rod 233, correspondingly, in the first chamber 14, the gate 221 rotates around the central axis of the connecting rod 233, and the lower surface of the gate 221 gradually inclines from the horizontal direction to the vertical direction until the gate is turned over by 180 degrees and then faces upwards. During the overturning, the first float 21 can be disengaged from the restriction of the lower surface of the shutter 221 and move upward under the action of the buoyancy. The water outlet of the first chamber 14 may then be closed.

The shape of the shutter 221 is also not limited, and may be specifically set according to the shape of the first chamber 14. For example, in one embodiment, the shutter 221 may be provided in an arc-shaped plate, specifically a semicircular plate, with an arc-shaped edge near the inner wall of the first chamber 14 (the part of the inner wall away from the partition 16) for adapting to the shape of the cylinder 1, the inner wall of the first chamber 14, and a straight edge near the partition 16 and connected to the connecting rod 233 for adapting to the surface shape of the partition 16. Of course, this is merely an example, and in alternative embodiments, the shutter 221 may have other shapes depending on the shape of the first chamber 14. However, in general, the shutter 221 is preferably shaped to restrain the first float 21 in a horizontal state and to easily release the first float 21 after being turned over.

Referring to fig. 5 and 6, in one embodiment, the shutter 221 has a plurality of through holes 2210 formed through opposite surfaces thereof. The purpose of this arrangement is to reduce the weight of the gate 221 while making the gate 221 have a larger surface area, so that the gate 221 can be applied to the first chamber 14 with a larger cross-sectional area, and the weight of the gate 221 does not affect the rotation and upward movement of the second float 231 under the action of buoyancy, and further, the gate 221 can be ensured to rotate synchronously when the water level in the second chamber 15 rises to a certain height, and the structural reliability of the automatic float water shutoff mechanism 2 is ensured; secondly, the resistance of the shutter 221 when rotating in the water is reduced.

Alternatively, in an alternative embodiment, crank 232 and second float 231 are arranged so as to be able to oscillate in a vertical plane, shutter 221 being correspondingly able to oscillate in a vertical plane in first chamber 14. For example, the crank 232 and the second float 231 swing upward due to buoyancy, the shutter 221 swings downward correspondingly, the width of the first chamber 14 is designed to be small at the top, and the first float 21 is allowed to pass through after the shutter 221 swings downward and the distance between the edge thereof and the inner wall of the first chamber 14 increases. Of course, the lower surface of the shutter 221 is designed to be inclined so as not to block the upward movement of the first float 21 at any time.

Alternatively, in an alternative embodiment, the float 23 is replaced by an upwardly open cartridge located adjacent to the inlet of the second chamber 15, into which water enters from the inlet of the second chamber 15 and flows downwardly and is collected, the cartridge being connected to the shutter 221 by a sealed pulley assembly. As the water in the cartridge increases, the cartridge moves downward and the shutter 221 slides upward under the gravity of the water. And the width of the first chamber 14 is designed to be large at the top and small at the bottom. When the shutter 221 moves upward, the distance between the edge thereof and the inner wall of the first chamber 14 increases, allowing the first float ball 21 to pass therethrough.

Alternatively, in an alternative embodiment, the float member 23 and the float release member 22 of the water shut-off mechanism 2 are replaced with an electromagnetic coil, a liquid level sensor, or the like. When the liquid level sensor has no liquid level signal, the electromagnetic coil is electrified to apply magnetic attraction to the first floating ball 21; when the liquid level sensor detects that the water level of the second chamber 15 reaches a preset height, the electromagnetic coil is de-energized, the first floating ball 21 can move upwards after being separated from the magnetic force, and then the water outlet of the first chamber 14 can be closed.

In further alternative embodiments, any implementation of the water closing mechanism 2 capable of closing the water outlet of the first chamber 14 after water exits from the water outlet of the container can be applied in the present application, and will not be described in detail herein.

Referring to fig. 3 and 4, in one embodiment, an automatic air discharging assembly 3 is disposed at an air outlet of the second chamber 15 for automatically discharging air in the second chamber 15. The purpose of this arrangement is that the second chamber 15 is communicated with the outside through the automatic exhaust assembly 3, and there is no need to provide another open structure for the second chamber 15 on the cylinder 1, that is, the second chamber 15 can be substantially closed except for the automatic exhaust assembly 3, so that external foreign matters and the like cannot easily enter the second chamber 15, and therefore, the rising of the water level in the second chamber 15 and the action of the water closing mechanism 2 can be prevented from being affected, and the reliability of the water closing mechanism 2 acting with the water in the second chamber 15 can be ensured.

In a specific application, the automatic exhaust assembly 3 may be disposed on the upper cover plate 12, and communicate with the second chamber 15 after penetrating the upper cover plate 12.

In one embodiment, as shown in fig. 4, the automatic exhaust assembly 3 includes an exhaust funnel 31 penetrating the upper cover plate 12 and a third float ball 32 disposed in the exhaust funnel 31. Before the water injection work starts, no air flows in the second chamber 15, the third floating ball 32 falls down by the gravity of the third floating ball and is sealed at the exhaust port of the second chamber 15, and the outside air cannot enter the second chamber 15 through the exhaust port; in the water filling process, the air in the second chamber 15 flows and then jacks up the third floating ball 32, the exhaust port of the second chamber 15 is opened, and the air can flow out.

Without being limited thereto, in other alternative embodiments, the automatic exhaust assembly 3 may be replaced by other air valve structures capable of automatically exhausting and exhausting in one direction, which is not described in detail again for example.

Further, optionally, a relief valve 4 is provided on the cylinder 1 in communication with the second chamber 15. The safety valve 4 is closed under the non-emergency condition, and when the air pressure in the second chamber 15 rises due to the failure of the automatic exhaust component 3 under the emergency condition, the pressure in the second chamber 15 can be manually released by manually operating the safety valve 4, so that the cylinder body 1 and the second chamber 15 are prevented from being damaged, and the smooth water injection process of the container can be ensured.

In a specific application, the safety valve 4 may be disposed on the upper cover plate 12, and communicate with the second chamber 15 after penetrating the upper cover plate 12.

With continued reference to fig. 1-3, in one embodiment, the hydraulic test auxiliary water inlet apparatus 100 further includes a filter 8. As further shown in fig. 4, the filter 8 is disposed between the outlet of the first chamber 14 and the inlet of the container. This filter 8 is used for preventing solid class foreign matter etc. from the water source or cylinder body 1 from getting into the container, avoids causing adverse effect to the water injection process of container, hydrostatic test or its structure etc..

The filter 8 may be a Y-type filter, a filter screen, or the like, and may be selectively provided according to specific needs.

Referring to fig. 2 and 4, in an embodiment, the hydraulic test auxiliary water inlet apparatus 100 further includes a pressure gauge 93 connected to the first chamber 14 for monitoring the pressure in the first chamber 14 in real time, so that a worker can know the condition in the first chamber 14 in real time, and the problem that the first chamber 14 and the cylinder 1 are damaged due to an excessive pressure in the first chamber 14 is avoided.

With continued reference to fig. 2 and 4, in one embodiment, the hydraulic test auxiliary water inlet apparatus 100 further includes a pressure relief valve 91, which is communicated with the bottom of the first chamber 14 and is used for draining the first chamber 14. The pressure relief valve 91 may be used to drain the first chamber 14 after the water injection is completed for the next auxiliary water intake, or to emergency drain the first chamber 14 in case of emergency or the like. The pressure relief valve 91 can be a manual stop valve, which can ensure manual pressure relief.

In addition, as shown in fig. 1 and 4, the hydraulic test auxiliary water inlet device 100 further includes a water inlet valve 5, a water outlet valve 6, and an air inlet valve 7. Specifically, the water inlet valve 5 is disposed before the water inlet of the first chamber 14, that is, between the water inlet of the first chamber 14 and the water source, and when the water inlet valve 5 is opened, water from the water source can enter the first chamber 14; the outlet valve 6 is arranged after the filter 8, i.e. between the filter 8 and the inlet of the container, and when the outlet valve 6 is closed, water can not enter the container any more; the air inlet valve 7 is arranged before the air inlet of the second chamber 15, i.e. between the air inlet of the second chamber 15 and the air outlet of the container, and when the air inlet valve 7 is opened, air in the container can enter the second chamber 15.

Wherein optionally, the hydraulic test auxiliary water inlet device 100 further comprises a check valve 92 arranged after the air inlet valve 7, i.e. between the air inlet of the second chamber 15 and the air inlet valve 7. The check valve 92 is used to make air enter the second chamber 15 only in one direction, but not enter the container through the second chamber 15, so as to ensure the smooth filling process in the container, and to ensure the safety and reliability of the pressure in the second chamber 15 and the container, and the respective structures.

The application process of the hydraulic test auxiliary water inlet device 100 provided by the embodiment of the application is as follows.

1. Opening the upper cover plate 12 to confirm that the water closing mechanism 2 is normal; confirming that the automatic exhaust component 3 is normal; confirming that the safety valve 4 is normal; the upper cover plate 12 is installed back;

2. confirming that the filter 8 is normal;

3. connecting a water source for test (such as SED water source in a nuclear power plant, namely deoxidized and demineralized water) with a water inlet valve 5; connecting the water outlet valve 6 with the water inlet of the container; connecting the exhaust pipe of the container with the air inlet valve 7; connecting the air outlet of the automatic exhaust component 3 to a specified exhaust place through an exhaust pipe;

4. checking the connection correctness and firmness of each part;

5. opening an exhaust valve of the container; opening the automatic exhaust assembly 3; opening the intake valve 7; opening a water inlet valve of the container; opening the water outlet valve 6; turning on an SED water source; opening the water inlet valve 5;

6. checking whether the automatic exhaust component 3 exhausts normally;

7. note that whether the reading of the pressure gauge 93 is normal is observed;

8. after water inflow is finished, closing the water outlet valve 6;

9. opening the pressure relief valve 91 to perform pressure relief and water drainage on the first chamber 14;

10. and (4) removing the connection of each part, and making a leakage-catching measure.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a hydrostatic test assists water installations for water intaking to waiting to test the container with water inlet and gas outlet, its characterized in that includes:

2. The hydrostatic test auxiliary water inlet device of claim 1, wherein the water closing mechanism comprises a first floating ball disposed in the first chamber, a floating ball release member disposed in the first chamber, and a floating member disposed in the second chamber, the floating ball release member and the floating member are connected to each other through a partition between the first chamber and the second chamber, the floating member is configured to drive the floating ball release member to operate after water enters the second chamber, and the floating ball release member can release the first floating ball after operating, so that the first floating ball can rise by buoyancy and close the water outlet of the first chamber.

3. The hydrostatic test water inlet aid of claim 2, wherein the float release member includes a gate, and the float member includes a second float, a crank connected to the second float, and a connecting rod connected to an end of the crank remote from the second float, the connecting rod passing through the partition and being connected to the gate, the connecting rod being capable of rotating on the partition about its own axis.

4. A hydrostatic test auxiliary water inlet apparatus as claimed in claim 3, wherein the shutter plate is provided with at least one through hole penetrating opposite surfaces thereof.

5. The hydraulic test auxiliary water inlet device as claimed in claim 3, wherein the gate plate is in the shape of an arc plate, the straight edge of the gate plate is connected with the connecting rod and is close to the partition plate, and the arc edge of the gate plate is close to the inner wall of the first chamber on the side far away from the partition plate.

6. The hydrostatic test auxiliary water inlet device according to any one of claims 1 to 5, further comprising an automatic air discharging assembly in communication with the second chamber, the automatic air discharging assembly comprising an air discharging cylinder in communication with the air outlet of the second chamber, and a third floating ball disposed in the air discharging cylinder and used for closing the air outlet of the second chamber.

7. A hydrostatic test auxiliary water inlet apparatus as claimed in any one of claims 1 to 5, further comprising a pressure relief valve in communication with the first chamber.

8. A hydrostatic test auxiliary water inlet apparatus according to any one of claims 1 to 5, wherein the hydrostatic test auxiliary water inlet apparatus further includes a relief valve in communication with the second chamber.

9. A hydrostatic test auxiliary water inlet device according to any one of claims 1 to 5, wherein the hydrostatic test auxiliary water inlet device further comprises a filter disposed between the water outlet of the first chamber and the water inlet of the container.

10. A hydrostatic test auxiliary water inlet apparatus according to any one of claims 1 to 5, wherein the hydrostatic test auxiliary water inlet apparatus further comprises a pressure gauge for monitoring the pressure within the first chamber.