CN113758660A - Horizontal water injection, exhaust and pressure test system and method for pressure vessel - Google Patents
Horizontal water injection, exhaust and pressure test system and method for pressure vessel Download PDFInfo
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- CN113758660A CN113758660A CN202111012819.6A CN202111012819A CN113758660A CN 113758660 A CN113758660 A CN 113758660A CN 202111012819 A CN202111012819 A CN 202111012819A CN 113758660 A CN113758660 A CN 113758660A
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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
- G01M3/32—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 for containers, e.g. radiators
- G01M3/3281—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 for containers, e.g. radiators removably mounted in a test cell
- G01M3/329—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 for containers, e.g. radiators removably mounted in a test cell for verifying the internal pressure of closed containers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a horizontal water injection, exhaust and pressure test system for a pressure container, which comprises a pressure test container and a special pressure test blind cover arranged at a flange end of pressure test container equipment; the exhaust pipe, the water inlet pipe and the drain pipe are arranged on the special pressure test blind cover and extend into the pressure test container; the water inlet pressurization system is connected with the water inlet pipe; an exhaust indication system connected to the exhaust pipe; a drainage system connected with the drainage pipe and a vent pipe arranged on the pressure test container. Wherein, the emptying blind cover is arranged on the emptying pipe; the position of emptying blind cover is higher than the connecting position of exhaust pipe and exhaust indicating system, and the end of the exhaust pipe extending into the pressure test container is positioned at the top end inside the pressure test container. The invention adopts the principle of the communicating vessel, when water is injected into the pressure testing container through the water inlet pipe, the gas in the pressure testing container rises along with the water level injected by the water inlet pipe, the internal air is compressed and removed, the gas in the internal space of the pressure testing container is completely discharged, the interior of the pressure testing container is completely filled with water, and the safe operation of pressure testing is ensured.
Description
Technical Field
The invention relates to the technical field of pressure testing of pressure vessels, in particular to a horizontal water injection, exhaust and pressure application system and method for a pressure vessel.
Background
In the pressure container manufacturing factory, according to the manufacturing standard and the requirements of 'volume rule', the manufactured pressure container needs to be subjected to final quality inspection, namely, hydrostatic test before leaving the factory.
As for conventional pressure containers, the conventional pressure containers are provided with pipe orifices for passing in and out equipment, the pipe orifices in the conventional pressure containers can be arranged at a high position to serve as exhaust ports in the horizontal hydrostatic test water injection process, and when the equipment is filled with water, a blind cover and a test check pressure gauge are additionally arranged after water flows out from the pipe orifices at the high position. Therefore, water is injected for pressure test, and the pressure vessel participating in the pressure test is ensured to be filled with liquid for pressure test. The compliance pressure test and the pressure test safety of the pressure test equipment are ensured.
However, in some special use scenarios, due to the particularity of the process requirements, such as the adsorption tower and the buffer tank, the inlet and the outlet of the equipment are usually designed at two ends of the symmetrical axis of the equipment, in a horizontal hydraulic test before the equipment leaves a factory, water injection and exhaust can only be discharged from the highest position (usually about 2/3 of the diameter of the equipment) in the horizontal central pipe orifice of the equipment, that is, an equipment space of about 1/3 is in an air layer in the hydraulic test, when the hydraulic pressure is tested and pressurized, the gas which cannot be discharged in the equipment is actually compressed along with the rise of the pressure test, so that the pressure test specification of the equipment is extremely dangerous and prohibited in the pressure test process of the equipment. Because the gas has the characteristics of compression and expansion, and if cracks and leakage exist on the surface of an air layer of the equipment during pressure testing, trace amount of the gas is not easy to be found and detected, once overpressure or equipment crack defects easily cause gas expansion and equipment explosion, and personal and equipment damage is brought. The water after pressure testing is discharged into a ditch or the ground, which wastes water resources, pollutes the environment and prolongs the flushing time of pressure testing.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the pressure vessel horizontal water injection exhaust pressure test system and method adopt the principle of a communicating vessel, when water injection and exhaust are carried out, gas in the pressure vessel is exhausted, safety in the pressure test process of the vessel is guaranteed, and the pressure test accuracy is improved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a horizontal water injection and exhaust pressure test system for a pressure container comprises the pressure container, a special pressure test blind cover, an exhaust pipe, an inlet pipe and a drain pipe, a water inlet pressurization system, an exhaust indication system, a drain system and an emptying pipe, wherein the special pressure test blind cover is arranged at a flange end of pressure test container equipment and used for plugging the flange end of the pressure test container equipment; the emptying pipe is provided with an emptying blind cover for sealing the emptying pipe; the position of emptying blind cover is higher than the connecting position of the exhaust pipe and the exhaust indicating system, and the end part of the exhaust pipe extending into the pressure test container part is positioned at the top end inside the pressure test container.
Further, the water inlet pressurization system comprises a tap water pipe and a pressurized water pipe which are connected with the water inlet pipe, a tap water valve arranged on the tap water pipe and a pressurized water pump outlet valve arranged on the pressurized water pipe.
Furthermore, the tap water pipe is also connected with a water replenishing pipe, the water replenishing pipe is connected with a water replenishing groove, and a water replenishing valve is arranged on the water replenishing pipe; the pressurizing water pipe is connected with a pressurizing water pump, and a liquid inlet pipe of the pressurizing water pump is communicated with the water supplementing groove.
Further, the exhaust indication system comprises a pressure indication system connected with the exhaust pipe and an exhaust outlet valve arranged on the exhaust pipe.
Further, the pressure indication system is provided with two sets, and each set of pressure indication system comprises a pressure gauge pipe connected with the exhaust pipe, an indication pressure gauge connected with the pressure gauge pipe, and a pressure indication valve arranged on the pressure gauge pipe.
Further, the drainage system comprises a drainage pump connected with the drainage pipe and a drainage valve arranged on the drainage pipe.
Further, the part of the drain pipe extending into the pressure test container is a corrugated flexible pipe.
Furthermore, a pressure gauge for the outlet of the pressurized water pump is arranged on the water outlet pipe of the pressurized water pump.
The invention also provides a pressure testing method of the pressure testing system, which comprises the following steps:
s1: installing a special pressure test blind cover at the equipment flange port of the pressure test container;
s2: opening a tap water valve, enabling tap water to enter the pressure test container through a water inlet pipe, and discharging gas in the pressure test container from an exhaust pipe when the internal space of the pressure test container is filled with the tap water;
s3: when water overflows from the exhaust pipe, a pressure indicating system is installed;
s4: after water overflows from the outlet of the emptying pipe, a sealed emptying blind cover is installed;
s5: opening a water replenishing valve to replenish water to the water replenishing groove, and closing a tap water valve;
s6: opening a pressurized water pump and a pressurized water pump outlet valve, and replenishing water and pressurizing to the pressure test container;
s7: observing an indication pressure gauge and a pressure gauge at the outlet of the pressurized water pump on the pressure indication system, and closing the outlet valve of the pressurized water pump and the pressurized water pump when the pressure value on the indication pressure gauge reaches the pressure testing pressure value;
s8: observing a pressure gauge on the pressure indicating system, and timing to record a test pressure value;
s9: judging whether the pressure test is qualified or not according to the pressure stabilizing time and the pressure value, and completing the pressure test;
s10: after the pressure test is finished, a drain valve and a drain pump are opened, water in the pressure test container is completely drained, the water is sent to another pressure container to be tested, the pressure container is cleaned and dried according to requirements, residue and residual water in the pressure test container is blown completely, the pressure test container is sealed, and the pressure test work is finished.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts the principle of a communicating vessel, the air inlet end part of the air outlet is arranged at the top of the pressure test container, when water is injected into the pressure test container through the water inlet pipe, the gas in the pressure test container is discharged along with the water injected by the water inlet pipe, the complete discharge of the gas in the pressure test container is realized, and the safety of pressure test is ensured; meanwhile, the arranged drain pipe can pump and drain water in the pressure test container into the next container needing pressure test through the drain pump after pressure test is completed, so that the water resource is recycled, and the waste of the water resource is avoided.
Drawings
FIG. 1 is a schematic view of a pressure testing system of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-a pressure test container, 2-a special pressure test blind cover, 3-an exhaust pipe, 4-a water inlet pipe, 5-a water outlet pipe, 6-a vent pipe, 7-a vent blind cover, 8-a tap water pipe, 9-a pressurized water pipe, 10-a tap water valve, 11-a pressurized water pump outlet valve, 12-a water replenishing pipe, 13-a water replenishing tank, 14-a water replenishing valve, 15-a pressurized water pump, 16-an exhaust outlet valve, 17-a drainage pump, 18-a drainage valve, 19-a pressurized water pump outlet pressure gauge, and 20-an indication pressure gauge.
Detailed Description
The present invention is further illustrated by the following description and examples, including but not limited to the following examples, taken in conjunction with the accompanying drawings.
As shown in fig. 1:
the utility model provides a pressure vessel horizontal water injection exhaust pressure testing system, adopts the principle of linker, when carrying out the water injection exhaust, with the gas exhaust in the pressure vessel, guarantees the safety of container pressure testing in-process to and promote the accuracy of pressure testing. The pressure testing device specifically comprises a pressure testing container 1, and during pressure testing, for a vertical pressure testing container 1, the vertical pressure testing container needs to be inverted firstly, so that the vertical pressure testing container becomes horizontal. Set up special pressure testing blind cover 2 on the equipment flange with pressure testing container 1, special pressure testing blind cover 2 is used for sealing equipment flange end flange, disposes three discrepancy water pipe lines on the special pressure testing blind cover 2 respectively, promptly: an exhaust pipe 3, a water inlet pipe 4 and a water outlet pipe 5.
The inlet tube 4 is connected into water pressurization system, through inlet tube 4 to the interior water injection of pressure testing container 1, simultaneously, through inlet tube moisturizing pressure boost, makes the pressure in the pressure testing container reach the requirement of pressure testing pressure. Specifically, the water inlet pressurization system comprises a tap water pipe 8 and a pressurized water pipe 9 which are connected with a water inlet pipe 4, and a tap water valve 10 arranged on the tap water pipe 8 and a pressurized water pump outlet valve 11 arranged on the pressurized water pipe 9; when water is filled, the tap water valve 10 is opened, the outlet valve 11 of the pressure water pump is closed, and water is filled into the pressure test container by the water pressure of the tap water itself. In order to better realize the pressurization of the pressure test container, the tap water pipe 8 is also connected with a water replenishing pipe 12, the water replenishing pipe 12 is connected with a water replenishing groove 13, and the water replenishing pipe 12 is provided with a water replenishing valve 14; the pressurizing water pipe 9 is connected with a pressurizing water pump 15, and a liquid inlet pipe of the pressurizing water pump 15 is communicated with the water supplementing groove 13; when the pressurization is needed, the tap water valve is closed, the water replenishing valve and the outlet valve of the pressurized water pump are opened, the pressurized water pump is started at the same time, and the pressure in the pressurizing container is raised through the pressurized water pump. In order to better control the pressure condition of the pressurized water pump, a pressurized water pump outlet pressure gauge 19 is also arranged on the water outlet pipe of the pressurized water pump 15.
The exhaust pipe 3 is used for exhausting gas in the pressure test container and transmitting the pressure in the pressure test container, and the exhaust pipe 3 is connected with an exhaust indicating system, specifically, the exhaust indicating system comprises a pressure indicating system connected with the exhaust pipe 3 and an exhaust outlet valve 16 arranged on the exhaust pipe 3; the pressure indicating system is used for indicating the pressure in the pressure test container, and the pressure indicating system comprises a pressure gauge pipe connected with the exhaust pipe 3, an indicating pressure gauge 20 connected with the pressure gauge pipe and a pressure indicating valve arranged on the pressure gauge pipe. In order to more accurately indicate the pressure in the pressure test container, the pressure indicating system is provided with two sets, and the pressure in the pressure applying container is indicated by different indicating pressure gauges in a combined comparison mode. The exit end position of blast pipe 3 is higher than the inside highest position of pressure testing container, when carrying out the water injection of pressure testing container, when the exit end overflow of blast pipe 3, carries out the installation of exhaust indicating system again, guarantees that the gas in the container of exerting pressure exhausts completely.
After the pressure testing is finished, water in the pressure testing container is pumped out through the drain pipe 5, so that the next pressure testing container needing pressure testing is provided for use, the cyclic utilization of water for pressure testing is realized, and water resources are saved. Specifically, the drain system includes a drain pump 17 connected to the drain pipe 5, and a drain valve 18 provided on the drain pipe 5; in order to drain the water in the pressure testing container better, the part of the drain pipe 5 extending into the pressure testing container 1 is a corrugated flexible pipe, and the corrugated flexible pipe can be better contacted with the lowest point in the pressure testing container through arrangement of the corrugated flexible pipe, so that the water in the pressure testing container is drained.
Arranging a vent pipe 6 at the venting position of the pressure test container 1, and enabling the outlet end position of the vent pipe 6 to be higher than the outlet end position of the exhaust pipe 3; the emptying pipe 6 is provided with an emptying blind cover 7 for sealing the emptying pipe 6, and the pressurizing container is in a sealed state through the emptying blind cover so as to meet the pressure test requirement of the pressure test container.
When pressure testing is carried out, the method is operated by the following steps:
s1: a special pressure test blind cover 2 is arranged on an equipment flange of the pressure test container 1;
s2: when a tap water valve 10 is opened, tap water enters the pressure test container 1 through a water inlet pipe 4, and when the internal space of the pressure test container 1 is filled with the tap water, gas in the pressure test container 1 is discharged from an exhaust pipe 3;
s3: when water overflows from the exhaust pipe 3, a pressure indicating system is installed;
s4: after water overflows from the outlet of the emptying pipe 6, a sealed emptying blind cover 7 is installed;
s5: the water replenishing valve 14 is opened to replenish water to the water replenishing groove 13, and the tap water valve 10 is closed;
s6: starting a pressure water pump 15 and a pressure water pump outlet valve 11, and supplementing water and pressurizing to the pressure test container 1;
s7: observing an indication pressure gauge 20 and a pressure gauge 19 of a pressure pump outlet on the pressure indication system, and closing the pressure pump outlet valve 11 and the pressure pump 15 when the pressure value on the indication pressure gauge reaches the pressure testing pressure value;
s8: observing a pressure gauge on the pressure indicating system, and timing to record a test pressure value;
s9: judging whether the pressure test is qualified or not according to the pressure stabilizing time and the pressure value, and completing the pressure test;
s10: after the pressure test is finished, the drain valve 18 and the drain pump 17 are opened, all water in the pressure test container 1 is drained and sent to another pressure container to be tested, and after residue and residual water in the pressure test container are cleaned and blown clean according to requirements, the pressure test container is sealed, and the pressure test work is finished.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a horizontal water injection exhaust pressure testing system of pressure vessel which characterized in that: the device comprises a pressure test container (1), a special pressure test blind cover (2) which is arranged at an equipment port of the pressure test container (1) and used for plugging a flange end of the pressure test container (1), an exhaust pipe (3), a water inlet pipe (4) and a drain pipe (5) which are arranged on the special pressure test blind cover (2) and extend into the pressure test container (1), a water inlet pressurizing system connected with the water inlet pipe (4), an exhaust indicating system connected with the exhaust pipe (3), a drain system connected with the drain pipe (5) and an emptying pipe (6) arranged on the pressure test container (1); wherein the emptying pipe (6) is provided with an emptying blind cover (7) for sealing and covering the emptying pipe (6); the position of unloading blind cover (7) is higher than blast pipe (3) with exhaust indicating system's hookup location, blast pipe (3) stretch into the tip of pressure testing container (1) part is located the inside top of pressure testing container (1).
2. The horizontal water injection, exhaust and pressure test system for the pressure vessel as claimed in claim 1, wherein: the water inlet pressurization system comprises a tap water pipe (8) and a pressurized water pipe (9) which are connected with the water inlet pipe (4), a tap water valve (10) arranged on the tap water pipe (8) and a pressurized water pump outlet valve (11) arranged on the pressurized water pipe (9).
3. The horizontal water injection, exhaust and pressure test system for the pressure vessel as claimed in claim 2, wherein: the tap water pipe (8) is also connected with a water replenishing pipe (12), the water replenishing pipe (12) is connected with a water replenishing groove (13), and a water replenishing valve (14) is arranged on the water replenishing pipe (12); the pressurizing water pipe (9) is connected with a pressurizing water pump (15), and a liquid inlet pipe of the pressurizing water pump (15) is communicated with the water supplementing groove (13).
4. The horizontal water injection, exhaust and pressure test system for the pressure vessel as claimed in claim 2 or 3, wherein: the exhaust indication system comprises a pressure indication system connected with the exhaust pipe (3) and an exhaust outlet valve (16) arranged on the exhaust pipe (3).
5. The horizontal water injection, exhaust and pressure test system for the pressure vessel as claimed in claim 4, wherein: the pressure indication system is provided with two sets, and each set of pressure indication system comprises a pressure gauge pipe connected with the exhaust pipe (3), an indication pressure gauge (20) connected with the pressure gauge pipe, and a pressure indication valve arranged on the pressure gauge pipe.
6. The horizontal water injection, exhaust and pressure test system for the pressure vessel as claimed in claim 5, wherein: the drainage system comprises a drainage pump (17) connected with the drainage pipe (5) and a drainage valve (18) arranged on the drainage pipe (5).
7. The horizontal water injection, exhaust and pressure test system for the pressure vessel as claimed in claim 6, wherein: the part of the drain pipe (5) extending into the pressure test container (1) is a corrugated flexible pipe.
8. The horizontal water injection, exhaust and pressure test system for the pressure vessel as claimed in claim 3, wherein: and a pressure gauge (19) of the outlet of the pressure water pump is also arranged on the water outlet pipe of the pressure water pump (15).
9. The pressure test method of the pressure test system according to claim 8, characterized in that: the method comprises the following steps:
s1: a special pressure test blind cover (2) is arranged at the flange port of the pressure test container (1);
s2: opening a tap water valve (10), enabling tap water to enter the pressure test container (1) through a water inlet pipe (4), and discharging gas in the pressure test container (1) from an exhaust pipe (3) when the internal space of the pressure test container (1) is filled with the tap water;
s3: when water overflows from the exhaust pipe (3), a pressure indicating system is installed;
s4: after water overflows from the outlet of the emptying pipe (6), a sealed emptying blind cover (7) is installed;
s5: a water replenishing valve (14) is opened to replenish water to the water replenishing groove (13), and a tap water valve (10) is closed;
s6: starting a pressure water pump (15) and a pressure water pump outlet valve (11), and replenishing water and pressurizing to the pressure test container (1);
s7: observing an indication pressure gauge (20) and a pressure gauge (19) of the outlet of the pressure water pump on the pressure indication system, and closing an outlet valve (11) of the pressure water pump and the pressure water pump (15) when the pressure value on the indication pressure gauge reaches the pressure testing pressure value;
s8: observing a pressure gauge on the pressure indicating system, and timing to record a test pressure value;
s9: judging whether the pressure test is qualified or not according to the pressure stabilizing time and the pressure value, and completing the pressure test;
s10: after the pressure test is finished, a drain valve (18) and a drain pump (17) are opened, water in the pressure test container (1) is completely drained and sent to another pressure container to be tested, and after residue and residual water in the pressure test container are cleaned and blown off by blowing according to requirements, the pressure test container is sealed, and the pressure test work is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111012819.6A CN113758660A (en) | 2021-08-31 | 2021-08-31 | Horizontal water injection, exhaust and pressure test system and method for pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111012819.6A CN113758660A (en) | 2021-08-31 | 2021-08-31 | Horizontal water injection, exhaust and pressure test system and method for pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113758660A true CN113758660A (en) | 2021-12-07 |
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ID=78792116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111012819.6A Pending CN113758660A (en) | 2021-08-31 | 2021-08-31 | Horizontal water injection, exhaust and pressure test system and method for pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113758660A (en) |
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2021
- 2021-08-31 CN CN202111012819.6A patent/CN113758660A/en active Pending
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