Water circulation device for an inspection apparatus and control method thereof

Abstract

The application discloses a water circulation device for an inspection equipment and a control method thereof. The water circulation device for the inspection equipment comprises a water supply tank, a water storage tank, a coarse water filtering tank, a fine water filtering tank, a water supplement source and a control valve assembly. The water circulation device can supply water to the inspection equipment from the water supply tank and recover water from the inspection equipment during operation of the inspection equipment. When the water amount in the water storage tank is too small, the water can be directly supplemented from the water supplement source. When the water amount in the water supply tank is too small, the water can be supplemented from the water storage tank or directly from the water supplement source. The recovered water of the inspection equipment can re-enter the water storage tank or the water supply tank after being filtered. The water circulation device realizes water circulation of the inspection equipment, integrates the functions of water supply, water recovery and water supplement, realizes the filtering function during water recovery and water supplement, and repeatedly filters the water multiple times, thereby avoiding the conditions of water pipe blockage or poor water coupling effect between the inspection equipment and the inspected object caused by impurities in the water.

Description

Technical Field

[0001] This invention relates to the field of water circulation equipment technology, and in particular to a water circulation device and its control method for inspecting equipment. Background Technology

[0002] The reactor pressure vessel top cover of a nuclear power plant is a core piece of equipment. Its main body is hemispherical, and several through-holes are installed on the top cover. The structural design of the reactor pressure vessel top cover includes several through-hole components. During inspection, ultrasonic testing is required, and water coupling is necessary during the testing process. The equipment must simultaneously handle equipment water supply, external water replenishment, and equipment water recycling. Furthermore, the recycled water needs to be filtered to achieve water circulation while ensuring the cleanliness of the water supplied to the equipment. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a water circulation device for inspection equipment and a control method thereof.

[0004] The technical solution adopted by the present invention to solve its technical problem is: to construct a water circulation device for inspection equipment, which includes a water supply tank, a water storage tank, a coarse filter water tank, a fine filter water tank, a water supply source, and a control valve assembly.

[0005] The water supply tank is connected to the water supply end of the inspection equipment. The water storage tank is used to provide water to the water supply tank. The coarse filter water tank is connected to the water outlet end of the inspection equipment. The fine filter water tank is used to filter the incoming water. The water replenishment source is used to replenish water to the water storage tank or the water supply tank. The control valve assembly is used to control the flow of water inside the water circulation device.

[0006] In some embodiments, the water circulation device includes a main pipeline, a water storage tank inlet pipeline, and a water supply tank inlet pipeline;

[0007] The main pipeline is connected to the outlet end of the fine filter water tank. The two ends of the water storage tank inlet pipeline are respectively connected to the first interface end of the main pipeline and the inlet end of the water storage tank. The two ends of the water supply tank inlet pipeline are respectively connected to the second interface end of the main pipeline and the inlet end of the water supply tank.

[0008] In some embodiments, the control valve assembly includes a water tank inlet control valve and a water supply tank inlet control valve;

[0009] The water storage tank inlet control valve is located on the water storage tank inlet pipeline, and the water supply tank inlet control valve is located on the water supply tank inlet pipeline.

[0010] In some embodiments, the control valve assembly further includes a water supply control valve and a water replenishment control valve;

[0011] The water supply control valve is connected between the water supply end of the inspection equipment and the water supply tank, and the water replenishment control valve is connected to the outlet end of the water replenishment source.

[0012] In some embodiments, the control valve assembly further includes a water tank outflow control valve and a recovery filter valve;

[0013] The water tank outflow control valve is connected to the outlet end of the water tank, and the recovery filter valve is connected to the outlet end of the coarse filter water tank.

[0014] In some embodiments, the water circulation device further includes a pump body connected between the recovery filter valve and the fine filter tank.

[0015] In some embodiments, the water circulation device further includes a water replenishment branch line, the two ends of which are connected to a first access point and a second access point, respectively. The first access point is located between the water replenishment control valve and the water tank outflow control valve, and the second access point is located between the recovery filter valve and the pump body.

[0016] In some embodiments, the water circulation device further includes a water level gauge.

[0017] In this embodiment, a control method for a water circulation device for inspection equipment is also constructed, which is based on the aforementioned water circulation device for inspection equipment and includes:

[0018] S1. When the inspection equipment needs coupling water for non-destructive testing, open the water supply control valve and connect the air pressurization to supply water from the water supply tank to the inspection equipment.

[0019] S2. If the water level in the water supply tank is lower than the first preset water level, only open the water replenishment control valve and the water supply tank inlet control valve to allow the water supply source to replenish water to the water supply tank.

[0020] S3. If the water level in the storage tank is lower than the second preset water level, only open the water supply control valve and the water tank inlet control valve to allow the water supply source to replenish the water tank.

[0021] S4. If the water level in the water supply tank is lower than the third preset water level and the water level in the storage tank is higher than the fourth preset water level, only open the water storage tank outflow control valve and the water supply tank inflow control valve to allow the storage tank to replenish water to the water supply tank.

[0022] S5. Only open the recovery filter valve and the water supply tank inlet control valve to allow the recovered water to enter the water supply tank for replenishment.

[0023] S6. Only open the recovery filter valve and the water tank inlet control valve to allow the recovered water to enter the water tank for replenishment.

[0024] S7. Only open the water tank inlet control valve and the water tank outlet control valve to achieve water circulation and purification in the water tank.

[0025] In some embodiments, the actual water levels of the water supply tank and the water storage tank are determined by a water level gauge. Implementing this invention has the following beneficial effects: the water circulation device for the inspection equipment can supply water to the inspection equipment from the water supply tank and recover water from the inspection equipment during operation. When the water level in the storage tank is too low, water can be replenished directly from the water source; when the water level in the supply tank is too low, water can be replenished from the storage tank or directly from the water source. Furthermore, the recovered water from the inspection equipment can be filtered and then re-enter the storage tank or the water supply tank. This water circulation device realizes water circulation for the inspection equipment, integrating the three functions of water supply, return, and replenishment. Filtration is achieved during the return and replenishment processes, and water filtration can be repeated multiple times, ensuring the quality of the supplied water and avoiding situations such as water pipe blockage or poor water coupling between the inspection equipment and the inspected object due to impurities in the water. Attached Figure Description

[0026] To more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0027] Figure 1 This is a three-dimensional structural schematic diagram of a water circulation device for inspection equipment in some embodiments of the present invention;

[0028] Figure 2 This is a three-dimensional structural diagram of a water circulation device for inspection equipment in some embodiments of the present invention from another direction.

[0029] Figure 3 This is a schematic diagram illustrating the structural principle of a water circulation device for inspecting equipment in some embodiments of the present invention. Detailed Implementation

[0030] To provide a clearer understanding of the technical features, objectives, and effects of this invention, specific embodiments are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on this invention.

[0031] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0032] Please see Figures 1 to 3 This is a water circulation device for an inspection equipment according to some embodiments of the present invention. It includes a water supply tank 1, a water storage tank 2, a coarse filter water tank 3, a fine filter water tank 4, a water replenishment source 5, and a control valve assembly 6. The water supply tank 1 is connected to the water supply end 10 of the inspection equipment. The water storage tank 2 provides water to the water supply tank 1. The coarse filter water tank 3 is connected to the water outlet end 20 of the inspection equipment. The fine filter water tank 4 filters the incoming water. The water replenishment source 5 provides water to the water storage tank 2 or the water supply tank 1. The control valve assembly 6 controls the flow of water within the water circulation device.

[0033] The inspection equipment specifically refers to the reactor pressure vessel top cover inspection equipment. This equipment requires ultrasonic testing, which necessitates water coupling during the inspection process. The water circulation device for this equipment provides coupling water during the inspection. Additionally, water storage tank 2 supplies water to water supply tank 1, and makeup water source 5 provides makeup water to either water storage tank 2 or water supply tank 1. Recycled water entering either water storage tank 2 or water supply tank 1 must pass through fine filtration tank 4 for filtration. Coarse filtration tank 3 performs the first step of coarse filtration on the recycled water. Water supply tank 1 is connected to the air; when the inspection equipment requires coupling water for non-destructive testing, it can be pressurized by connecting to the air, allowing water from water supply tank 1 to be supplied to the inspection equipment through water pipes.

[0034] Understandably, this water circulation device for the inspection equipment can supply water to the inspection equipment from the water supply tank and recover water from the inspection equipment during operation. When the water level in the storage tank 2 is too low, water can be replenished directly from the water source 5. When the water level in the supply tank 1 is too low, water can be replenished from the storage tank 2 or directly from the water source 5. Moreover, the recovered water from the inspection equipment can be filtered and then reintroduced into the storage tank 2 or the supply tank 1. This water circulation device realizes water circulation for the inspection equipment, integrating the three functions of water supply, return, and replenishment. It also achieves filtration during the return and replenishment processes, and the water filtration can be repeated multiple times to ensure the quality of the supplied water and avoid situations such as water pipe blockage or poor water coupling between the inspection equipment and the inspected object due to impurities in the water.

[0035] like Figure 3 As shown, the water circulation device includes a main flow pipeline 71, a water storage tank inlet pipeline 72, and a water supply tank inlet pipeline 73. The main flow pipeline 71 is connected to the outlet end of the fine filtration water tank 4. The two ends of the water storage tank inlet pipeline 72 are respectively connected to the first interface end 711 of the main flow pipeline 71 and the inlet end of the water storage tank 2. The two ends of the water supply tank inlet pipeline 73 are respectively connected to the second interface end 712 of the main flow pipeline 71 and the inlet end of the water supply tank 1. The control valve assembly 6 includes a water storage tank inlet control valve 61 and a water supply tank inlet control valve 62. The water storage tank inlet control valve 61 is located on the water storage tank inlet pipeline 72, and the water supply tank inlet control valve 62 is located on the water supply tank inlet pipeline 73. The water storage tank inlet control valve 61 is connected upstream of the water storage tank 2 to control the opening and closing of the water filtered by the fine filtration water tank entering the water storage tank 2. The water supply tank inlet control valve 62 is connected upstream of the water supply tank 1 to control the opening and closing of the water filtered by the fine filter tank 4 into the water supply tank 1.

[0036] The control valve assembly 6 also includes a water supply control valve 63 and a water replenishment control valve 64. The water supply control valve 63 is connected between the water supply end 10 of the inspection equipment and the water supply tank 1, and the water replenishment control valve 64 is connected to the outlet end of the water replenishment source 5. The water supply control valve 63 controls the on / off supply of water from the water supply tank 1 to the inspection equipment, and the water replenishment control valve 64 controls the on / off supply of water from the water replenishment source 5. The control valve assembly 6 also includes a water storage tank outflow control valve 65 and a recovery filter valve 66. The water storage tank outflow control valve 65 is connected to the outlet end of the water storage tank 2, and the recovery filter valve 66 is connected to the outlet end of the coarse filter water tank 3. The water storage tank outflow control valve 65 is located downstream of the water storage tank 2 and controls the on / off supply of water out of the water storage tank 2. The recovery filter valve 66 is connected between the coarse filter water tank 3 and the fine filter water tank 4 and controls the on / off supply of water filtered by the coarse filter water tank 3 into the fine filter water tank 4.

[0037] The water circulation device also includes a pump body 8, which is connected between the recovery filter valve 66 and the fine filter water tank 4. The pump body 8 is used to provide power for the flow of water.

[0038] The water circulation device also includes a water replenishment branch line 74, with its two ends connected to a first access point and a second access point, respectively. The first access point is located between the water replenishment control valve 64 and the water storage tank outlet control valve 65, and the second access point is located between the recovery filter valve 66 and the pump body 8. The water source 5 can use this water replenishment branch line 74 to provide water to the water storage tank 2 or the water supply tank 1, or the water storage tank 2 can use this water replenishment branch line 74 to provide water to the water supply tank 1.

[0039] The water circulation device also includes a water level gauge 9, through which the water level height in the water supply tank 1 and the water storage tank 2 can be obtained.

[0040] In this embodiment, combined with Figure 3 As shown, a control method for a water circulation device for inspection equipment is also constructed, which is based on the aforementioned water circulation device for inspection equipment, and includes:

[0041] S1. When the inspection equipment needs coupling water for non-destructive testing, open the water supply control valve 63 to connect the air pressurization and supply water from the water supply tank 1 to the inspection equipment.

[0042] S2. If the water level in water supply tank 1 is lower than the first preset water level, only open the water replenishment control valve 64 and the water supply tank inlet control valve 62 to allow the water replenishment source 5 to replenish water to water supply tank 1.

[0043] S3. If the water level in the water storage tank 2 is lower than the second preset water level, only open the water replenishment control valve 64 and the water storage tank inlet control valve 61 to allow the water replenishment source 5 to replenish water to the water storage tank 2.

[0044] S4. If the water level in water supply tank 1 is lower than the third preset water level and the water level in water storage tank 2 is higher than the fourth preset water level, only open the water storage tank outflow control valve 65 and the water supply tank inflow control valve 62 to allow water storage tank 2 to replenish water to water supply tank 1.

[0045] S5. Only open the recovery filter valve 66 and the water supply tank inlet control valve 62 to allow the recovered water to enter the water supply tank 1 for replenishment.

[0046] S6. Only open the recovery filter valve 66 and the water tank inlet control valve 61 to allow the recovered water to enter the water tank 2 for replenishment.

[0047] S7. Only open the water tank inlet control valve 61 and the water tank outlet control valve 65 to achieve water circulation and purification in the water tank 2.

[0048] Specifically, in method S1, when the inspection equipment requires coupling water for non-destructive testing, the water supply control valve 63 is opened, and air pressure is applied to supply water from the water supply tank 1 to the inspection equipment through the water pipe. In method S4, if the water level in the water supply tank 1 is lower than the third preset water level, it indicates that the water supply tank 1 is insufficient; if the water level in the water storage tank 2 is higher than the fourth preset water level, it indicates that the water storage tank 2 has sufficient water. At this time, only the water storage tank outflow control valve 65 and the water supply tank inflow control valve 62 are opened to allow the water storage tank 2 to replenish water to the water supply tank 1. In method S7, the water in the water storage tank 2 can enter the fine filtration tank 4 for repeated filtration to meet water usage standards and achieve water circulation and purification.

[0049] The actual water levels in water supply tank 1 and water storage tank 2 are obtained from water level gauge 9. The preset water levels are adjusted adaptively according to the actual on-site operating conditions.

[0050] The water circulation device realizes the water circulation of coupled water, integrating the three functions of water supply, water return, and filtration into one. It uses one pump body 8 and six control valves to complete the water circulation function. The filtration function is realized in the water return and water replenishment process. At the same time, the water filtration can be repeated multiple times to ensure the water quality of the supply and avoid the situation of water pipe blockage or poor water coupling effect between the inspection equipment and the object being inspected due to impurities in the water.

[0051] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A control method for a water circulation device used in inspection equipment, characterized in that, The water circulation device for the inspection equipment includes a water supply tank (1), a water storage tank (2), a coarse filter water tank (3), a fine filter water tank (4), a water supply source (5), and a control valve assembly (6). The water supply tank (1) is connected to the water supply end (10) of the inspection equipment. The water storage tank (2) is used to provide water to the water supply tank (1). The coarse filter water tank (3) is connected to the water outlet end (20) of the inspection equipment. The fine filter water tank (4) is used to filter the incoming water. The water replenishment source (5) is used to provide water replenishment to the water storage tank (2) or the water supply tank (1). The control valve assembly (6) is used to control the flow of water inside the water circulation device. The control valve assembly (6) includes a water tank inlet control valve (61), a water supply tank inlet control valve (62), a water supply control valve (63), a water replenishment control valve (64), a water tank outlet control valve (65), and a recovery filter valve (66). The control method for the water circulation device used to inspect the equipment includes: S1. When the inspection equipment needs coupling water for non-destructive testing, open the water supply control valve (63) and pressurize the air supply to supply water from the water supply tank (1) to the inspection equipment. S2. If the water level in the water supply tank (1) is lower than the first preset water level, only open the water replenishment control valve (64) and the water supply tank inlet control valve (62) so that the water replenishment source (5) replenishes water to the water supply tank (1); S3. If the water level in the water storage tank (2) is lower than the second preset water level, only open the water replenishment control valve (64) and the water storage tank inlet control valve (61) so that the water replenishment source (5) replenishes water to the water storage tank (2); S4. If the water level in the water supply tank (1) is lower than the third preset water level and the water level in the storage tank (2) is higher than the fourth preset water level, only open the storage tank outflow control valve (65) and the water supply tank inflow control valve (62) so that the storage tank (2) can replenish water to the water supply tank (1). S5. Open only the recovery filter valve (66) and the water supply tank inlet control valve (62) to allow the recovered water to enter the water supply tank (1) for water replenishment; S6. Open only the recovery filter valve (66) and the water tank inlet control valve (61) to allow the recovered water to enter the water tank (2) for water replenishment; S7. Only open the water tank inlet control valve (61) and the water tank outlet control valve (65) to achieve water circulation and purification in the water tank (2).

2. The control method for the water circulation device for inspection equipment according to claim 1, characterized in that, The water circulation device includes a main pipeline (71), a water storage tank inlet pipeline (72), and a water supply tank inlet pipeline (73). The main pipeline (71) is connected to the outlet end of the fine filter water tank (4). The two ends of the water storage tank inlet pipeline (72) are respectively connected to the first interface end (711) of the main pipeline (71) and the inlet end of the water storage tank (2). The two ends of the water supply tank inlet pipeline (73) are respectively connected to the second interface end (712) of the main pipeline (71) and the inlet end of the water supply tank (1).

3. The control method for the water circulation device for inspection equipment according to claim 2, characterized in that, The water storage tank inlet control valve (61) is located on the water storage tank inlet pipeline (72), and the water supply tank inlet control valve (62) is located on the water supply tank inlet pipeline (73).

4. The control method for the water circulation device for inspecting equipment according to claim 1, characterized in that, The water supply control valve (63) is connected between the water supply end (10) of the inspection equipment and the water supply tank (1), and the water replenishment control valve (64) is connected to the outlet end of the water replenishment source (5).

5. The control method for the water circulation device for inspecting equipment according to claim 4, characterized in that, The water tank outflow control valve (65) is connected to the outlet end of the water tank (2), and the recovery filter valve (66) is connected to the outlet end of the coarse filter water tank (3).

6. The control method for the water circulation device for inspecting equipment according to claim 5, characterized in that, The water circulation device also includes a pump body (8), which is connected between the recovery filter valve (66) and the fine filter water tank (4).

7. The control method for the water circulation device for inspection equipment according to claim 6, characterized in that, The water circulation device also includes a water replenishment branch line (74), the two ends of which are connected to a first access point and a second access point, respectively. The first access point is located between the water replenishment control valve (64) and the water storage tank outflow control valve (65), and the second access point is located between the recovery filter valve (66) and the pump body (8).

8. The control method for the water circulation device for inspecting equipment according to claim 1, characterized in that, The water circulation device also includes a water level gauge (9).

9. The control method for the water circulation device for inspection equipment according to claim 1, characterized in that, The actual water levels of the water supply tank (1) and the water storage tank (2) are obtained by the water level gauge (9).

Images