CN112857701A - System, method and device for online pressure test of generator hydrogen cooler - Google Patents
System, method and device for online pressure test of generator hydrogen cooler Download PDFInfo
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- CN112857701A CN112857701A CN202011635691.4A CN202011635691A CN112857701A CN 112857701 A CN112857701 A CN 112857701A CN 202011635691 A CN202011635691 A CN 202011635691A CN 112857701 A CN112857701 A CN 112857701A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention relates to a system, a method and a device for an on-line pressure test of a generator hydrogen cooler, wherein the system comprises: the water inlet pipeline is provided with a water source pressure gauge and a water inlet valve, the front end of the water inlet pipeline is connected with a water inlet and a water outlet of the generator hydrogen cooler, and the rear end of the water inlet pipeline is detachably connected with water source equipment or a water pressure pump; the front end of the air inlet pipeline is connected with an exhaust pipe of the generator hydrogen cooler, and the rear end of the air inlet pipeline is detachably connected with the gas transmission equipment and is provided with an air inlet valve and a first pressure gauge; the front end of the drainage pipeline is connected with the water inlet pipeline and is provided with a drainage valve and a second pressure gauge; the front end of the exhaust pipeline is connected with the air inlet pipeline, and an exhaust valve is arranged on the exhaust pipeline; the front end of the pressure relief pipeline is connected with the rear end of the air inlet pipeline, and a pressure relief valve is arranged on the pressure relief pipeline; and the drainage pipeline and the exhaust pipeline are connected with the front end of the output pipeline after being connected with the rear end of the pressure relief pipeline in parallel. It can beat the water pressure test on line, shortens maintenance time, reduces the impaired risk of generator hydrogen cooler.
Description
Technical Field
The invention relates to the technical field of nuclear power equipment tests, in particular to a system, a method and a device for an on-line pressure test of a hydrogen cooler of a generator.
Background
As shown in figure 1, the water pressure test is carried out on the generator hydrogen cooler in the overhaul every year. In order to carry out the water pressure test, the hydrogen cooler needs to be lifted out of the generator, then the hydrogen cooler is laid on the ground, and then the water pressure test is carried out.
The hydrogen cooler generally weighs 2-4 tons, is 4-5 meters high, has small clearance with the generator in the hoisting process, is easy to cause danger, and needs to be laid down after being hoisted, thereby being time-consuming and labor-consuming.
Disclosure of Invention
The invention aims to provide a system, a method and a device for on-line pressure test of a generator hydrogen cooler.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a system for generator hydrogen cooler online pressure testing, comprising:
the water inlet pipeline is connected with the water inlet and the water outlet of the generator hydrogen cooler at the front end and detachably connected with water source equipment or a water pressure pump at the rear end, and a water source pressure gauge and a water inlet valve are arranged on the water inlet pipeline;
the front end of the air inlet pipeline is connected with an exhaust pipe of the generator hydrogen cooler, the rear end of the air inlet pipeline is detachably connected with the gas transmission equipment, and an air inlet valve and a first pressure gauge are arranged on the air inlet pipeline;
the front end of the water inlet pipeline is connected with a water inlet pipeline, and a water outlet valve and a second pressure gauge are arranged on the gas outlet pipeline;
the front end of the exhaust pipeline is connected with the air inlet pipeline, and an exhaust valve is arranged on the exhaust pipeline;
the front end of the pressure relief pipeline is connected with the rear end of the air inlet pipeline, and a pressure relief valve is arranged on the pressure relief pipeline;
and the drainage pipeline and the exhaust pipeline are connected with the front end of the output pipeline after being connected with the rear end of the pressure relief pipeline in parallel.
Preferably, a filter or a filter screen for filtering impurities is arranged on the water inlet pipeline.
Preferably, the rear end of the water inlet pipeline is provided with a quick connector for quick assembly and disassembly with the water source equipment or the hydraulic pump.
Preferably, the air intake line comprises a main water intake line, and a first branch line and a second branch line connected with the main water intake line;
the end part of the first branch line is connected with a water inlet of the generator hydrogen cooler through a water inlet flange, and the end part of the second branch line is connected with a water outlet of the generator hydrogen cooler through a water outlet flange.
Preferably, a check valve is further arranged on the air inlet pipeline.
The method for the online pressure test of the hydrogen cooler of the generator is suitable for the system for the online pressure test of the hydrogen cooler of the generator, and comprises the following steps:
s1: filling water: the rear end of the air inlet pipeline is connected with the water source equipment, the water inlet valve, the exhaust valve are opened, the pressure release valve, the drain valve and the air inlet valve are closed, water is delivered to the hydrogen cooler of the generator, and the water source equipment is closed after the observation window continuously discharges water without bubbles;
s2: dismantling the water source equipment: opening the pressure relief valve and the exhaust valve, closing the water inlet valve, the drain valve and the air inlet valve, observing the water source pressure gauge, and if the indication of the water source pressure gauge is zero, disassembling the water source equipment and installing the water pressure pump;
s3: pressing: opening the water inlet valve, closing the pressure relief valve, the drain valve, the exhaust valve and the air inlet valve, and inputting test pressure into the generator hydrogen cooler;
s4: dismantling the hydraulic pump: opening the pressure relief valve, closing the water inlet valve, the drain valve, the exhaust valve and the air inlet valve, observing the water source pressure gauge, and detaching the water pressure pump if the indication of the water source pressure gauge is zero;
s5: pressure maintaining: closing the water inlet valve, the pressure release valve, the water drain valve, the exhaust valve and the air inlet valve, and observing pressure values of the first pressure gauge and the second pressure gauge;
s6: draining: the air inlet pipeline is connected with air transmission equipment, the drain valve and the air inlet valve are opened, the water inlet valve, the pressure release valve and the exhaust valve are closed, whether water flows through the observation window or not is observed, and if not, water drainage is finished.
The utility model provides a device for generator hydrogen cooler is at line pressure test, includes the box, the box is equipped with:
the water inlet pipeline is used for connecting the front end of the water inlet pipeline with a water inlet and a water outlet of the generator hydrogen cooler, and the rear end of the water inlet pipeline is detachably connected with water source equipment or a water pressure pump, and a water source pressure gauge and a water inlet valve are arranged on the water inlet pipeline;
the front end of the air inlet pipeline is connected with an exhaust pipe of the generator hydrogen cooler, the rear end of the air inlet pipeline is detachably connected with the gas transmission equipment, and an air inlet valve and a first pressure gauge are arranged on the air inlet pipeline;
the front end of the water inlet pipeline is connected with a water inlet pipeline, and a water outlet valve and a second pressure gauge are arranged on the gas outlet pipeline;
the front end of the exhaust pipeline is connected with the air inlet pipeline, and an exhaust valve is arranged on the exhaust pipeline;
the front end of the pressure relief pipeline is connected with the rear end of the air inlet pipeline, and a pressure relief valve is arranged on the pressure relief pipeline; and the drainage pipeline and the exhaust pipeline are connected with the front end of the output pipeline after being connected with the rear end of the pressure relief pipeline in parallel.
Preferably, a filter or a filter screen for filtering impurities is arranged on the water inlet pipeline;
the rear end of the water inlet pipeline is provided with a quick connector which is used for being quickly assembled and disassembled with the water source equipment or the hydraulic pump.
Preferably, the water inlet line comprises a main water inlet line, and a first branch line and a second branch line connected with the main water inlet line.
Preferably, a check valve is arranged on the air inlet pipeline.
The implementation of the invention has the following beneficial effects: by applying the system and the method for the online pressure test of the generator hydrogen cooler, the water pressure test can be performed online without lifting the hydrogen cooler, so that time and labor are saved, the overhaul time is shortened, the damage risk of the generator hydrogen cooler is reduced, and the travelling crane is not occupied.
A device for generator hydrogen cooler is at line pressure test, its structural design is compact, and functional part such as suppress and pressurize test and drainage are all integrated together, and simple to use, portable can be general in different occasions water pressure test work, especially can utilize and carry out water pressure test work in narrow and small limited space.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a generator hydrogen cooler;
FIG. 2 is a schematic structural diagram of a system for on-line pressure testing of a generator hydrogen cooler according to the present invention;
fig. 3 is a schematic structural diagram of the device for the on-line pressure test of the generator hydrogen cooler.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
As shown in fig. 2, the system for the online pressure test of the generator hydrogen cooler of the present invention comprises: the water inlet pipeline 1 is connected with the water inlet 101 and the water outlet 102 of the generator hydrogen cooler 100 at the front end and detachably connected with the water source equipment 200 or the water pressure pump 300 at the rear end, and a water source pressure gauge 14 and a water inlet valve 15 are arranged on the water inlet pipeline 1.
And an air inlet pipeline 2 with the front end connected with the exhaust pipe 103 of the generator hydrogen cooler 100 and the rear end detachably connected with an air conveying device (not shown), wherein an air inlet valve 21 and a first pressure gauge 23 are arranged on the air inlet pipeline 2.
And a water discharge pipeline 3 with the front end connected with the water inlet pipeline 1, and a water discharge valve 31 and a second pressure gauge 32 are arranged on the gas discharge pipeline 4.
And an exhaust line 4 having a front end connected to the intake line 2, the exhaust line 4 being provided with an exhaust valve 41.
And a pressure release pipeline 5 with the front end connected with the rear end of the air inlet pipeline 2, wherein a pressure release valve 51 is arranged on the pressure release pipeline 5.
And an output line 6 provided with an observation window 61, wherein the drain line 3 and the exhaust line 4 are connected in parallel with the rear end of the pressure release line 5 and then connected to the front end of the output line 6. The observation window 61 is used for observing whether water flow or moisture exists during water drainage and air exhaust. Of course, in some embodiments, a flow meter or the like may be further provided to more accurately observe whether there is water flow, and a bubble detection sensor or the like may also be provided. The outlet line 6 may be connected to a trench or a holding device to collect moisture or the like from the test.
Preferably, the valve may be a solenoid valve.
Further, a filter or a filter screen 16 for filtering impurities is provided on the water inlet line 1 to prevent foreign impurities in the water from entering the generator hydrogen cooler 100, and a plurality of filters or filter screens 16 may be provided.
Further, the rear end of the water inlet pipeline 1 is provided with a quick coupling 17 for quick assembly and disassembly with the water source device 200 or the hydraulic pump 300.
Further, the air inlet pipeline 2 comprises a main water inlet line 11, and a first branch line 12 and a second branch line 13 which are connected with the main water inlet line 11, wherein the end of the first branch line 12 is connected with a water inlet 101 of the generator hydrogen cooler through a water inlet flange 7, and the end of the second branch line 13 is connected with a water outlet 102 of the generator hydrogen cooler through a water outlet flange 8.
Further, the intake line 2 is provided with a check valve 22 for sucking air from the outside during drainage, but if the intake valve 15 is opened by an erroneous operation in a pressurized or water-filled state, water is not sprayed from the intake port (a connection port through which the intake line 2 is connected to the gas transmission equipment).
This a system for generator hydrogen cooler is pressure test on line can beat the water pressure test on line under the hydrogen cooler condition of not hanging out, labour saving and time saving, shorten repair time, reduce the impaired risk of generator hydrogen cooler, and do not occupy the driving.
The application also discloses a method for the online pressure test of the generator hydrogen cooler, which is suitable for the system for the online pressure test of the generator hydrogen cooler, and the method specifically comprises the following steps:
s1: filling water: the rear end of the air inlet pipeline 2 is connected with water source equipment, the water inlet valve 15 and the exhaust valve 41 are opened, the pressure release valve 51, the water discharge valve 31 and the air inlet valve 21 are closed, water is delivered to the generator hydrogen cooler 100, and the water source equipment 200 is closed after the observation window 61 continuously discharges water without bubbles.
S2: dismantling the water source equipment 200: opening the pressure release valve 51 and the exhaust valve 41, closing the water inlet valve 15, the water discharge valve 31 and the air inlet valve 21, observing the water source pressure gauge 14, and if the indication of the water source pressure gauge 14 is zero, detaching the water source equipment 200 and installing the water pressure pump 300.
S3: pressing: and (3) opening the water inlet valve 15, closing the pressure release valve 51, the water discharge valve 31, the exhaust valve 41 and the air inlet valve 21, and inputting test pressure into the generator hydrogen cooler 100, wherein the test pressure is set according to the specification requirement of the generator hydrogen cooler 100.
S4: dismantling the hydraulic pump 300: and opening the pressure relief valve 51, closing the water inlet valve 15, the water discharge valve 31, the exhaust valve 41 and the air inlet valve 21, observing the water source pressure gauge 14, and detaching the water pressure pump 300 if the indication of the water source pressure gauge 14 is zero.
S5: pressure maintaining: closing the water inlet valve 15, the pressure release valve 51, the water discharge valve 31, the gas discharge valve 41 and the gas inlet valve 21, observing the pressure values of the first pressure gauge 23 and the second pressure gauge 32, if the pressure values of the first pressure gauge 23 and the second pressure gauge 32 are not changed within a preset time, such as within 30 minutes, indicating that the generator hydrogen cooler 100 is not damaged, and the like, and no leak point exists, and if the pressure value is found to be reduced, indicating that the leak point exists, further searching for the location of the leak point is needed, and performing maintenance.
S6: draining: the air inlet pipeline 2 is connected with air transmission equipment, the drain valve 31 and the air inlet valve 21 are opened, the water inlet valve 15, the pressure release valve 51 and the exhaust valve 41 are closed, whether water flows through the observation window 61 or not is observed, and if not, drainage is finished.
Preferably, before the hydraulic pressure test is carried out, the generator hydrogen cooler 100 can be lifted by 50mm-100mm by a lifting device.
This a method for generator hydrogen cooler is at line pressure test can not hang out under the hydrogen cooler condition, beat the water pressure test on line, labour saving and time saving, shorten repair time, reduce the impaired risk of generator hydrogen cooler, and do not occupy the driving.
As shown in fig. 3, the device for the generator hydrogen cooler online pressure test according to the embodiment includes a box 10, the box 10 is provided with:
the water inlet pipeline 1 is used for being connected with a water inlet 101 and a water outlet 102 of the generator hydrogen cooler 100 at the front end and detachably connected with water source equipment or a water pressure pump at the rear end, and a water source pressure gauge 14 and a water inlet valve 15 are arranged on the water inlet pipeline 1.
And the front end of the air inlet pipeline 2 is connected with the exhaust pipe 103 of the generator hydrogen cooler 100, the rear end of the air inlet pipeline 2 is detachably connected with the gas transmission equipment, and the air inlet pipeline 2 is provided with an air inlet valve 21 and a first pressure gauge 23.
And a water discharge pipeline 3 with the front end connected with the water inlet pipeline 1, and a water discharge valve 31 and a second pressure gauge 32 are arranged on the gas discharge pipeline 4.
And an exhaust line 4 having a front end connected to the intake line 2, the exhaust line 4 being provided with an exhaust valve 41.
And a pressure relief pipeline 5 with the front end connected with the rear end of the air inlet pipeline 2, wherein a pressure relief valve 51 is arranged on the pressure relief pipeline 5; and an output pipeline 6 provided with an observation window 61, wherein the water discharge pipeline 3 and the exhaust pipeline 4 are connected with the front end of the output pipeline 6 after being connected with the rear end of the pressure release pipeline 5 in parallel. This observation window 61 is used for when carrying out the pressure test, is used for observing whether there is rivers or aqueous vapor when the drainage is discharged. Of course, in some embodiments, a flow meter or the like may be further provided to more accurately observe whether there is water flow, and a bubble detection sensor or the like may also be provided. The outlet line 6 may be connected to a drain or holding device during testing to collect moisture, etc. from the test.
Preferably, the water inlet line 1 is provided with a filter or a filtering net 16 for filtering impurities, so as to prevent foreign impurities in the water from entering the generator hydrogen cooler 100, and the filter or the filtering net 16 may be provided in plurality.
The rear end of the water inlet pipeline 1 is provided with a quick connector for quick assembly and disassembly with the water source equipment 200 or the hydraulic pump 300.
Further, the water inlet pipeline 1 includes a main water inlet line 11, and a first branch line 12 and a second branch line 13 connected to the main water inlet line 11. The end of the first branch line 12 may be connected to the water inlet 101 of the generator hydrogen cooler 100 through a water inlet flange, and the end of the second branch line 13 may be connected to the water outlet 102 of the generator hydrogen cooler 100 through a water outlet flange.
Preferably, the intake line 2 is provided with a check valve 22 for sucking air from the outside during drainage, but if the intake valve 15 is opened by an erroneous operation in a pressurized or water-filled state, water is not sprayed from the intake port (a connection port of the intake line 2 to the gas transmission equipment).
Further, the box body 10 is further provided with a handle for carrying, the bottom of the box body is further provided with positioning supporting legs, the positioning supporting legs can be adjustable screws and foot plates arranged at the bottoms of the adjustable screws, and the box body 10 can be made of stainless steel or aluminum alloy.
This a device for generator hydrogen cooler is at line pressure test, its structural design is compact, and functional part such as suppress and pressurize test and drainage are all integrated together, and simple to use, portable can be general in different occasions water pressure test work, especially can utilize and carry out water pressure test work in narrow and small limited space.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the invention, are given by way of illustration and description, and are not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. A system for generator hydrogen cooler online pressure test is characterized by comprising:
the water inlet pipeline (1) is connected with a water inlet (101) and a water outlet (102) of the generator hydrogen cooler at the front end and detachably connected with water source equipment or a water pressure pump at the rear end, and a water source pressure gauge (14) and a water inlet valve (15) are arranged on the water inlet pipeline (1);
the front end of the air inlet pipeline (2) is connected with an exhaust pipe (103) of the generator hydrogen cooler, the rear end of the air inlet pipeline is detachably connected with the gas transmission equipment, and an air inlet valve (21) and a first pressure gauge (23) are arranged on the air inlet pipeline (2);
the front end of the water inlet pipeline (1) is connected with a water discharge pipeline (3), and a water discharge valve (31) and a second pressure gauge (32) are arranged on the gas discharge pipeline (4);
the front end of the exhaust pipeline (4) is connected with the air inlet pipeline (2), and an exhaust valve (41) is arranged on the exhaust pipeline (4);
the front end of the pressure relief pipeline (5) is connected with the rear end of the air inlet pipeline (2), and a pressure relief valve (51) is arranged on the pressure relief pipeline (5);
and the output pipeline (6) is provided with an observation window (61), and the drainage pipeline (3) and the exhaust pipeline (4) are connected with the front end of the output pipeline (6) after being connected with the rear end of the pressure release pipeline (5) in parallel.
2. The system for the generator hydrogen cooler on-line pressure test is characterized in that a filter or a filter screen (16) for filtering impurities is arranged on the water inlet pipeline (1).
3. The system for the on-line pressure test of the hydrogen cooler of the generator as claimed in claim 1, wherein the rear end of the water inlet pipeline (1) is provided with a quick connector for quick assembly and disassembly with the water source equipment or the hydraulic pump.
4. The system for generator hydrogen cooler on-line pressure test according to claim 1, characterized in that the air inlet line (2) comprises a water inlet main line (11), and a first branch line (12) and a second branch line (13) connected with the water inlet main line (11);
the end part of the first branch line (12) is connected with a water inlet (101) of the generator hydrogen cooler through a water inlet flange, and the end part of the second branch line (13) is connected with a water outlet (102) of the generator hydrogen cooler through a water outlet flange.
5. The system for the generator hydrogen cooler on-line pressure test is characterized in that a check valve (22) is further arranged on the air inlet line (2).
6. A method for generator hydrogen cooler online pressure test is applicable to the system for generator hydrogen cooler online pressure test of any one of the above claims 1-5, and is characterized by comprising the following steps:
s1: filling water: the rear end of the air inlet pipeline (2) is connected with the water source equipment, the water inlet valve (15) and the exhaust valve (41) are opened, the pressure release valve (51), the drain valve (31) and the air inlet valve (21) are closed, water is delivered to the generator hydrogen cooler, and the water source equipment is closed after the observation window (61) is observed to continuously output water without bubbles;
s2: dismantling the water source equipment: opening the pressure relief valve (51) and the exhaust valve (41), closing the water inlet valve (15), the drain valve (31) and the air inlet valve (21), observing the water source pressure gauge (14), and if the indication of the water source pressure gauge (14) is zero, detaching the water source equipment and installing the water pressure pump;
s3: pressing: opening the water inlet valve (15), closing the pressure relief valve (51), the water discharge valve (31), the exhaust valve (41) and the air inlet valve (21), and inputting test pressure into the generator hydrogen cooler;
s4: dismantling the hydraulic pump: opening the pressure relief valve (51), closing the water inlet valve (15), the water discharge valve (31), the exhaust valve (41) and the air inlet valve (21), observing the water source pressure gauge (14), and detaching the water pressure pump if the indication of the water source pressure gauge (14) is zero;
s5: pressure maintaining: closing the water inlet valve (15), the pressure release valve (51), the water drain valve (31), the exhaust valve (41) and the air inlet valve (21), and observing the pressure values of the first pressure gauge (23) and the second pressure gauge (32);
s6: draining: the air inlet pipeline (2) is connected with air transmission equipment, the drain valve (31) and the air inlet valve (21) are opened, the water inlet valve (15), the pressure release valve (51) and the exhaust valve (41) are closed, whether water flows through the observation window (61) or not is observed, and if not, water drainage is finished.
7. The utility model provides a device for generator hydrogen cooler is at line pressure test which characterized in that, includes the box, the box is equipped with:
the water inlet pipeline (1) is used for connecting the front end with a water inlet (101) and a water outlet (102) of the generator hydrogen cooler, and the rear end is detachably connected with water source equipment or a water pressure pump, and a water source pressure gauge (14) and a water inlet valve (15) are arranged on the water inlet pipeline (1);
the front end of the air inlet pipeline (2) is connected with an exhaust pipe (103) of the generator hydrogen cooler, the rear end of the air inlet pipeline is detachably connected with the gas transmission equipment, and an air inlet valve (21) and a first pressure gauge (23) are arranged on the air inlet pipeline (2);
the front end of the water inlet pipeline (1) is connected with a water discharge pipeline (3), and a water discharge valve (31) and a second pressure gauge (32) are arranged on the gas discharge pipeline (4);
the front end of the exhaust pipeline (4) is connected with the air inlet pipeline (2), and an exhaust valve (41) is arranged on the exhaust pipeline (4);
the front end of the pressure relief pipeline (5) is connected with the rear end of the air inlet pipeline (2), and a pressure relief valve (51) is arranged on the pressure relief pipeline (5); and the output pipeline (6) is provided with an observation window (61), and the drainage pipeline (3) and the exhaust pipeline (4) are connected with the front end of the output pipeline (6) after being connected with the rear end of the pressure release pipeline (5) in parallel.
8. The device for the on-line pressure test of the hydrogen cooler of the generator as claimed in claim 7, characterized in that the water inlet pipeline (1) is provided with a filter or a filter screen (16) for filtering impurities;
the rear end of the water inlet pipeline (1) is provided with a quick connector which is used for being quickly assembled and disassembled with the water source equipment or the hydraulic pump.
9. The device for the generator hydrogen cooler online pressure test according to claim 7, characterized in that the water inlet pipeline (1) comprises a water inlet main line (11), and a first branch line (12) and a second branch line (13) connected with the water inlet main line (11).
10. The device for the generator hydrogen cooler on-line pressure test is characterized in that a check valve (22) is arranged on the air inlet pipeline (2).
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| CN202011635691.4A CN112857701B (en) | 2020-12-31 | 2020-12-31 | System, method and device for online pressure test of generator hydrogen cooler |
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| CN202011635691.4A CN112857701B (en) | 2020-12-31 | 2020-12-31 | System, method and device for online pressure test of generator hydrogen cooler |
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| CN112857701B CN112857701B (en) | 2022-11-29 |
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| CN107063590A (en) * | 2017-01-10 | 2017-08-18 | 广西防城港核电有限公司 | Plate type heat exchanger suppresses test device and suppresses method of testing |
| CN206848077U (en) * | 2017-07-06 | 2018-01-05 | 王建涛 | Auxiliary repair equipment carries out the exhaust structure of the water pressure test |
| CN107782510A (en) * | 2017-09-20 | 2018-03-09 | 中广核核电运营有限公司 | Water pressure test system and hydraulic test method |
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