A hydraulic throttle resistance quick dismounting device and method

Abstract

This invention discloses a hydraulic quick-disassembly device and method for throttling resistance components, relating to the field of nuclear power plant installation equipment technology. It addresses the problem of long replacement times for existing throttling components, leading to low calibration efficiency. The device includes: a hydraulic cylinder positioned at the lower part of a fixed support; an inlet module movably mounted at the middle of the fixed support above the hydraulic cylinder; an outlet module mounted at the upper part of the fixed support; a throttling resistance component sleeve installed between the inlet and outlet modules; an inlet shut-off valve on the inlet module; an outlet shut-off valve on the outlet module; and measuring instruments mounted on both the inlet and outlet modules. Operating this device can improve the installation and disassembly speed of the throttling resistance component, thereby increasing calibration efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of nuclear power plant installation equipment, specifically relating to a hydraulic throttling resistance component quick disassembly device and method. Background Technology

[0002] Throttling resistance components are crucial parts of nuclear power systems. Before installation, all throttling resistance components used in nuclear power plants must be calibrated and verified under rated parameters. In some special applications, large quantities of high-precision throttling resistance components of the same specifications are required. The calibration and verification of these components often involve high-temperature and high-pressure media. Traditionally, the connection between the tooling for mounting throttling resistance components and the resistance calibration system uses high-parameter flanges or threaded connections. After calibration, replacing a new throttling resistance component is time-consuming and labor-intensive due to the disassembly and removal of the tooling, resulting in low calibration efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a quick disassembly device and method for hydraulic throttling resistance components, which solves the problem that the replacement process of existing throttling components is time-consuming, resulting in low calibration efficiency.

[0004] The technical solution adopted by this invention to solve its technical problem is: a hydraulic throttling resistance component quick disassembly device, wherein the device includes: a hydraulic cylinder disposed at the lower part of a fixed support; an inlet module movably mounted at the middle position of the fixed support above the hydraulic cylinder; an outlet module mounted at the upper position of the fixed support; a throttling resistance component sleeve installed between the inlet module and the outlet module; an inlet shut-off valve disposed on the inlet module; an outlet shut-off valve disposed on the outlet module; and measuring instruments mounted on the inlet module and the outlet module; the interiors of the inlet module, the throttling resistance component sleeve, and the outlet module are hollow structures, and the three components are connected together in sequence by sealing gaskets to form the main structure of the device and form a medium flow channel; A hydraulic cylinder tray is mounted on top of the hydraulic cylinder. This tray presses the inlet module and throttling resistance sleeve mounted on it upwards, tightly connecting them to the outlet module on the upper part of the fixed bracket. In this hydraulic throttling resistance quick-release device, a pressure measuring instrument is connected to the inlet pipe of the inlet module; a temperature measuring element is mounted on the outlet module; and a differential pressure measuring instrument is connected between the outlet pipe of the outlet module and the inlet pipe of the inlet module.

[0005] In the aforementioned hydraulic throttling resistance quick disassembly device, the inlet module body and the inlet shut-off valve are connected by a metal hose.

[0006] The aforementioned hydraulic quick disassembly device for throttling resistance components includes a guide post on the side of the throttling resistance component sleeve. The guide post cooperates with the guide groove on the fixed bracket to prevent the throttling resistance component sleeve from deviating from its expected position when the hydraulic cylinder lifts it.

[0007] In the aforementioned hydraulic throttling resistance quick disassembly device, a drain valve is provided at the lower part of the inlet module.

[0008] A method for operating a hydraulic throttling resistance quick disassembly device, wherein the working process of the disassembly device includes: Step 1: Close the inlet shut-off valve and the outlet shut-off valve, and then open the drain valve to allow the medium from the external equipment to be discharged into the device through the drain valve. Step 2: After the pressure measuring instrument returns to zero, the hydraulic cylinder moves downward in sequence, driving the hydraulic cylinder tray, inlet module, and throttling resistance sleeve downward, so that the upper part of the throttling resistance sleeve is separated from the outlet module. After the guide column is separated from the guide groove, the throttling resistance sleeve is removed from the inlet module. Step 3: After replacing the throttling resistance component inside the throttling resistance component sleeve and the sealing gaskets at both ends of the throttling resistance component sleeve, place the throttling resistance component sleeve vertically on top of the inlet module. Step 4: The hydraulic cylinder moves upward in sequence, driving the hydraulic cylinder tray, inlet module, and throttling resistance sleeve upward. During this process, the guide column causes the throttling resistance sleeve to gradually rise along the guide groove, finally connecting tightly with the lower end of the outlet module. Then, the hydraulic cylinder is adjusted to stop the lifting and maintain the current pressure until the throttling resistance calibration is completed. Step 5: Open the inlet and outlet shut-off valves to allow the high-temperature and high-pressure medium to be injected into the inlet module, the throttling resistance sleeve, and the outlet module. The performance of the throttling resistance is calibrated by reading the parameters of the pressure measuring instrument, temperature measuring element, and differential pressure measuring instrument.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: The hydraulic throttling resistance component quick disassembly device and method provided by the present invention improves the installation and disassembly speed of the throttling resistance component sleeve and the inlet and outlet modules by improving the sealing and pressing method between the hydraulic system and the inlet and outlet modules, thereby increasing the replacement efficiency of the throttling resistance component; on the other hand, the device can achieve reliable sealing between the high temperature and high pressure throttling resistance component sleeve and the inlet and outlet modules under different parameters by controlling the pressure of the hydraulic cylinder, thus solving the problem of long replacement time of the throttling resistance component, which leads to low calibration efficiency. Attached Figure Description

[0010] Figure 1 The diagram shown is a structural schematic of a hydraulic throttling resistance quick disassembly device according to the present invention.

[0011] Explanation of reference numerals in the attached diagram: 1. Outlet shut-off valve; 2. Outlet connecting pipe; 3. Temperature measuring element; 4. Outlet module; 5. Fixing bracket; 6. Sealing gasket; 7. Throttling resistance sleeve; 8. Guide column; 9. Inlet module; 10. Inlet connecting pipe; 11. Metal hose; 12. Hydraulic cylinder tray; 13. Hydraulic cylinder; 14. Differential pressure measuring instrument; 15. Pressure measuring instrument; 16. Inlet shut-off valve; 17. Drain valve. Detailed Implementation

[0012] To address the problem of time-consuming replacement processes and low calibration efficiency in existing throttling components, this invention provides a hydraulic quick-disassembly device for throttling resistance components. For example... Figure 1 As shown, the device includes: a hydraulic cylinder 13 located at the lower part of the fixed bracket 5, the hydraulic cylinder 13 being a piston-type hydraulic cylinder with adjustable pressure. An inlet module 9 is movably mounted at the middle position of the fixed bracket 5 above the hydraulic cylinder 13, and an outlet module 4 is mounted at the upper part of the fixed bracket 5. A throttling resistance sleeve 7 is installed between the inlet module 9 and the outlet module 4. The throttling resistance sleeve 7 is a cylindrical high-pressure tubular component, preferably made of stainless steel. The inlet module 9, the throttling resistance sleeve 7, and the outlet module 4 have hollow interiors. The three components are connected sequentially by sealing gaskets 6, forming the main structure of the device. The hollow interior space of the throttling resistance sleeve 7 is used to install the throttling resistance component used for calibration, and the interior of the throttling resistance component serves as the medium flow channel for the calibration circuit. The inlet module 9 and outlet module 4 are also equipped with high temperature and high pressure medium flow channels. The throttling resistance sleeve 7 and the inlet module 9, and the throttling resistance sleeve 7 and the outlet module 4 are sealed by sealing gaskets 6. The preferred material of the sealing gaskets 6 is metal graphite spiral wound gasket.

[0013] A hydraulic cylinder tray 12 is provided on the top of the hydraulic cylinder 13. The inlet module 9 and the throttling resistance sleeve 7 mounted on the hydraulic cylinder tray 12 are pressed upward and tightly connected to the outlet module 4 on the upper part of the fixed bracket 5. A guide post 8 is provided on the side of the throttling resistance sleeve 7. The guide post 8 cooperates with the guide groove on the fixed bracket 5 to prevent the throttling resistance sleeve 7 from deviating from the expected position when the hydraulic cylinder 13 lifts it.

[0014] An inlet shut-off valve 16 is installed on the inlet module 9, and an outlet shut-off valve 1 is installed on the outlet module 4. Both inlet shut-off valves 16 and 1 are pneumatic shut-off valves. Both valves are used to open or close the flow of external high-temperature and high-pressure media, creating an independent cavity within the inlet module 9, outlet module 4, and throttling resistance sleeve 7, isolating them from the outside. The main body of the inlet module 9 is connected to the inlet shut-off valve 16 via a flexible metal hose 11. The flexible metal hose 11 is a high-temperature and high-pressure resistant braided corrugated metal pipe, ensuring the continuity of the high-pressure metal pipeline during the vertical movement of the inlet module 9.

[0015] Measuring instruments are installed on the inlet module 9 and the outlet module 4. A pressure measuring instrument 15 is connected to the inlet pipe 10 of the inlet module 9 to monitor the internal pressure of the inlet module 9. A temperature measuring element 3 is installed on the outlet module 4 to measure the temperature of the medium flowing inside the throttling resistance sleeve 7. A differential pressure measuring instrument 14 is connected between the outlet pipe 2 of the outlet module 4 and the inlet pipe 10 of the inlet module 9 to measure the resistance of the medium flowing inside the throttling resistance sleeve 7. A drain valve 17 is installed at the bottom of the inlet module 9 for discharging the medium inside the module.

[0016] The working process of the disassembly device includes: Step 1: Close the inlet shut-off valve 16 and the outlet shut-off valve 1, and then open the drain valve 17 so that the medium from the external equipment is discharged into the device through the drain valve 17. Step 2: After the pressure measuring instrument 15 returns to zero, the hydraulic cylinder 13 moves downward in sequence, driving the hydraulic cylinder tray 12, the inlet module 9, and the throttling resistance sleeve 7 downward, so that the upper part of the throttling resistance sleeve 7 is separated from the outlet module 4. After the guide column 8 is separated from the guide groove, the throttling resistance sleeve 7 is removed from the inlet module 9. Step 3: After replacing the throttling resistance component inside the throttling resistance component sleeve 7 and the sealing gaskets 6 at both ends of the throttling resistance component sleeve 7, place the throttling resistance component sleeve 7 vertically on the upper part of the inlet module 9. Step 4: The hydraulic cylinder 13 moves upward in sequence, driving the hydraulic cylinder tray 12, the inlet module 9, and the throttling resistance sleeve 7 to move upward. During this process, the guide column 8 causes the throttling resistance sleeve 7 to gradually rise along the guide groove, and finally connect tightly with the lower end of the outlet module 4. Then, the hydraulic cylinder 13 is adjusted to stop lifting and maintain the current pressure until the throttling resistance calibration is completed. Step 5: Open the inlet shut-off valve 16 and the outlet shut-off valve 1 to inject the high-temperature and high-pressure medium into the inlet module 9, the throttling resistance sleeve 7 and the outlet module 4. The performance of the throttling resistance component is calibrated by reading the parameters of the pressure measuring instrument 15, the temperature measuring element 3 and the differential pressure measuring instrument 14.

[0017] It should be noted that the combination of the technical features in the embodiments of the present invention is not limited to the combination methods described in the embodiments of the present invention or the combination methods described in the specific embodiments. All technical features described in the present invention can be freely combined or combined in any way, unless there is a contradiction between them.

[0018] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-release device for a hydraulic throttling resistance component, characterized in that, The device includes: a hydraulic cylinder (13) located at the lower part of a fixed support (5); an inlet module (9) is movably installed at the middle position of the fixed support (5) above the hydraulic cylinder (13); an outlet module (4) is installed at the upper part of the fixed support (5); a throttling resistance sleeve (7) is installed between the inlet module (9) and the outlet module (4); an inlet shut-off valve (16) is installed on the inlet module (9); an outlet shut-off valve (1) is installed on the outlet module (4); and measuring instruments are installed on the inlet module (9) and the outlet module (4); the interior of the inlet module (9), the throttling resistance sleeve (7), and the outlet module (4) is hollow; the three components are connected together in sequence by a sealing gasket (6) to form the main structure of the device and form a medium flow channel; a hydraulic cylinder tray (12) is provided on the top of the hydraulic cylinder (13); the inlet module (9) and the throttling resistance sleeve (7) installed on it are squeezed upward by the hydraulic cylinder tray (12) and tightly combined with the outlet module (4) at the upper part of the fixed support (5).

2. The hydraulic throttling resistance quick disassembly device according to claim 1, characterized in that, A pressure measuring instrument (15) is connected to the inlet pipe (10) on the inlet module (9); a temperature measuring element (3) is provided on the outlet module (4), and a differential pressure measuring instrument (14) is connected between the outlet pipe (2) on the outlet module (4) and the inlet pipe (10) on the inlet module (9).

3. The hydraulic throttling resistance quick disassembly device according to claim 2, characterized in that, The main body of the inlet module (9) is connected to the inlet shut-off valve (16) via a metal hose (11).

4. A quick-release device for a hydraulic throttling resistance component according to claim 3, characterized in that, The side of the throttling resistance sleeve (7) is provided with a guide post (8). The guide post (8) cooperates with the guide groove on the fixed bracket (5) to prevent the throttling resistance sleeve (7) from deviating from the expected position when the hydraulic cylinder (13) lifts it.

5. A quick-release device for a hydraulic throttling resistance component according to claim 4, characterized in that, A drain valve (17) is provided at the bottom of the imported module (9).

6. An operating method for a hydraulic throttling resistance quick disassembly device, characterized in that, The operating method for the hydraulic throttling resistance quick disassembly device as described in claim 5 includes: Step 1: Close the inlet shut-off valve (16) and the outlet shut-off valve (1), and then open the drain valve (17) so that the medium from the external equipment is discharged into the device through the drain valve (17) in turn; Step 2: After the pressure measuring instrument (15) returns to zero, the hydraulic cylinder (13) moves downward in sequence, driving the hydraulic cylinder tray (12), the inlet module (9), and the throttling resistance sleeve (7) downward, so that the upper part of the throttling resistance sleeve (7) is separated from the outlet module (4). After the guide column (8) is separated from the guide groove, the throttling resistance sleeve (7) is removed from the inlet module (9). Step 3: After replacing the throttling resistance component inside the throttling resistance component sleeve (7) and the sealing gaskets (6) at both ends of the throttling resistance component sleeve (7), place the throttling resistance component sleeve (7) vertically on the upper part of the inlet module (9); Step 4: The hydraulic cylinder (13) moves upward in sequence, driving the hydraulic cylinder tray (12), the inlet module (9), and the throttling resistance sleeve (7) upward. During this process, the throttling resistance sleeve (7) gradually rises along the guide groove direction through the guide column (8), and finally connects tightly with the lower end of the outlet module (4). Then, the hydraulic cylinder (13) is adjusted to stop lifting and maintain the current pressure until the throttling resistance calibration is completed. Step 5: Open the inlet shut-off valve (16) and the outlet shut-off valve (1) to inject the high-temperature and high-pressure medium into the inlet module (9), the throttling resistance sleeve (7) and the outlet module (4). The performance of the throttling resistance is calibrated by reading the parameters of the pressure measuring instrument (15), the temperature measuring element (3) and the differential pressure measuring instrument (14).

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