CN114635001A - Rapid pressure testing device and method for cooling wall of blast furnace - Google Patents
Rapid pressure testing device and method for cooling wall of blast furnace Download PDFInfo
- Publication number
- CN114635001A CN114635001A CN202111595520.8A CN202111595520A CN114635001A CN 114635001 A CN114635001 A CN 114635001A CN 202111595520 A CN202111595520 A CN 202111595520A CN 114635001 A CN114635001 A CN 114635001A
- Authority
- CN
- China
- Prior art keywords
- pressure
- water
- cooling wall
- test
- blast furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 179
- 238000001816 cooling Methods 0.000 title claims abstract description 123
- 238000000034 method Methods 0.000 title claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 151
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 51
- 238000003860 storage Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010998 test method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a rapid pressure test device and a rapid pressure test method for a cooling wall of a blast furnace, which belong to the technical field of the cooling wall of the blast furnace, and comprise a water source, a pressure stabilizing unit, a pressure test pump for connecting the water source and the pressure stabilizing unit, and a test unit for testing the cooling wall; the pressure stabilizing unit is used for distributing water from the water source to each test unit; the test unit comprises more than two cooling walls which are connected in series; in the test unit, the water inlet of the cooling wall positioned at the front end is connected with the pressure stabilizing unit, and the water outlet of the former cooling wall is connected with the water inlet of the latter cooling wall through a test connecting pipe; a pressure gauge and an exhaust valve are arranged at the water outlet of the cooling wall positioned at the tail end; the pressure testing device has the technical effects of reducing the pressure testing cost and improving the pressure testing efficiency.
Description
Technical Field
The invention relates to the technical field of blast furnace cooling walls, in particular to a device and a method for quickly testing pressure of a blast furnace cooling wall.
Background
In order to maintain the normal operation and safe production of a blast furnace of an iron-making system, a blast furnace cooling wall needs to be equipped for the blast furnace, and the blast furnace cooling wall bears the abrasion of furnace burden, the erosion of slag and the scouring of coal gas flow in the production process; however, in the pressure test work of the cooling walls of the blast furnace, because the number of the cooling walls of the blast furnace is large, the number of the cooling walls of the blast furnace corresponding to one blast furnace exceeds 500, and 1-4 cooling water pipes are arranged in each cooling wall; the pressure test workload is huge, the pressure test occupation time is longer, and the working efficiency is lower.
Therefore, a method for quickly testing the pressure of the cooling wall of the blast furnace with high pressure testing efficiency is needed.
Disclosure of Invention
The invention aims to provide a method for quickly testing a pressure of a cooling wall of a blast furnace, which aims to solve the problem of low efficiency of the conventional pressure testing.
A rapid pressure test device for a cooling wall of a blast furnace comprises a water source, a pressure stabilizing unit, a pressure test pump for connecting the water source and the pressure stabilizing unit, and a test unit for testing the cooling wall;
the pressure stabilizing unit is used for distributing water from the water source to each test unit;
the test unit comprises more than two cooling walls which are connected in series; in the test unit, the water inlet of the cooling wall positioned at the front end is connected with the pressure stabilizing unit, and the water outlet of the former cooling wall is connected with the water inlet of the latter cooling wall through a test connecting pipe; a pressure gauge and an exhaust valve are arranged at the water outlet of the cooling wall positioned at the tail end.
Further, preferably, the pressure stabilizing unit comprises a water inlet part, a water storage part and a dispensing part;
the water inlet part is connected with the output end of the pressure test pump and is used for feeding water into the water storage part, and a water inlet valve is arranged on the water inlet part;
the water storage part is used for storing water for measuring the pressure of the test unit and is provided with a water storage pressure gauge;
the distributing part is more than two water outlets uniformly arranged on the water storage part, the water outlets are arranged corresponding to the testing unit, and a water outlet valve is arranged on the distributing part.
Further, preferably, the pressure stabilizing unit is made of a seamless steel pipe with the diameter of DN 600.
Further, preferably, the number of the cooling walls in the test unit is 3-5.
Further, preferably, the water source and the pressure test pump, the pressure test pump and the pressure stabilizing unit, and the pressure stabilizing unit and the test unit are connected through hydraulic hoses.
Further, it is preferable that an O-ring is provided at the nozzle of the hydraulic hose.
Further, it is preferable that a sealing connector is provided at a connection of the hydraulic hose and the water outlet of the stave and/or the water inlet of the stave.
Further, preferably, the sealing connecting piece comprises a rubber plug and a water pipe, the diameter of the rubber plug is matched with the water outlet of the cooling wall and/or the water inlet of the cooling wall, a through hole is formed in the center of the rubber plug, and the water pipe is arranged in the through hole.
The invention also provides a method for quickly testing the pressure of the cooling wall of the blast furnace, which comprises the following steps:
the water source, the pressure stabilizing unit, the pressure test pump and the test unit are communicated, the water inlet of the cooling wall positioned at the front end is connected with the pressure stabilizing unit, and more than two cooling walls are connected in series through the test connecting pipe; a pressure gauge and an exhaust valve are arranged at a water outlet of the cooling wall positioned at the tail end;
opening a water source and an exhaust valve, starting a pressure test pump, discharging residual air in the rapid pressure test device of the cooling wall of the blast furnace, and closing the exhaust valve;
the pressure of the pressure test pump is increased in sections until the set pressure is reached, and the pressure test pump and a water source are closed to maintain the pressure for a set time;
if the cooling wall has no leakage and pressure reduction in the pressure maintaining process, the pressure test is qualified.
As mentioned above, the rapid pressure testing device and method for the cooling wall of the blast furnace have the following beneficial effects:
1) the pressure stabilizing unit is arranged to increase the pressure test medium capacity in the rapid pressure test device for the cooling wall of the blast furnace, so that the phenomenon of rapid pressure rise or instantaneous overpressure caused by unstable pressure of pressure test or small pressure test medium capacity is avoided;
2) through the communication mode that one pressure stabilizing unit corresponds to a plurality of test units and a plurality of cooling walls are arranged in one test unit in series, the simultaneous pressure test of the plurality of cooling walls is realized, and the pressure test efficiency is improved;
3) the cooling walls are grouped according to the test units, if a group of cooling walls or one cooling wall has a problem, the cooling walls can quickly react, the test unit where the cooling wall is located is separated, and the pressure test of other test units is not influenced;
4) the cooling wall is heavy and inconvenient to move; and the water source, the pressure test pump and the pressure stabilizing unit are light in weight, and the structural parts are interconnected only by utilizing the hydraulic hose, so that on-site pressure test can be carried out, the use frequency of hoisting equipment is reduced, the pressure test cost is reduced, and the pressure test efficiency is improved.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a schematic structural diagram of a rapid pressure test device for a cooling wall of a blast furnace according to an embodiment of the invention.
Wherein the content of the first and second substances,
1. a water source; 2. a pressure test pump; 3. a voltage stabilization unit; 4. a test unit; 5. a pressure gauge; 6. an exhaust valve; 7. testing the connecting pipe; 8. a hydraulic hose; 9. and cooling the wall.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
It is to be understood that the terms "aperture", "upper", "lower", "thickness", "top", "middle", "length", "inner", "peripheral", and the like are used merely to facilitate describing the invention and to simplify the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention.
In order to solve the problems and improve the pressure test efficiency of the cooling wall of the blast furnace, the invention provides a rapid pressure test device and a rapid pressure test method for the cooling wall of the blast furnace, wherein an operation platform is built in the blast furnace, an installation reference point mark for indicating the position of the installation reference point is arranged on the operation platform, the installation reference point of a large set of flanges is converted into a real object point from a virtual position point, and then the installation position adjustment and welding of the large set of flanges are completed according to the installation reference point mark; the technical effects of improving the calibration accuracy and further improving the installation accuracy of the large-sleeve flange are achieved.
Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a general description of the structure of a rapid pressure test device for a cooling stave of a blast furnace. Specifically, fig. 1 is a schematic structural view of a blast furnace stave rapid pressure test device according to an embodiment of the present invention; as shown in figure 1 of the drawings, in which,
a rapid pressure test device for a cooling wall of a blast furnace comprises a water source 1, a pressure stabilizing unit 3, a pressure test pump 2 for connecting the water source 1 and the pressure stabilizing unit 3, and a test unit 4 for testing the cooling wall; the pressure stabilizing unit 3 is used for distributing water of the water source 1 to each testing unit 4; the test unit 4 comprises more than two cooling walls 9 connected in series; in the test unit 4, the water inlet of the cooling wall 9 positioned at the front end is connected with the pressure stabilizing unit 3, and the water outlet of the front cooling wall 9 is connected with the water inlet of the rear cooling wall 9 through a test connecting pipe; a pressure gauge 5 and an exhaust valve 6 are arranged at the water outlet of the cooling wall 9 at the tail end. That is to say, install manometer and discharge valve at the pressure testing system end, discharge valve is used for the preceding exhaust system of pressure testing air, and the manometer is arranged in the pressure testing monitoring system pressure. Has the advantages of simple material taking, simple and convenient manufacture, convenient and quick connection and disassembly and good effect.
In a specific implementation process, the pressure stabilizing unit is a pressure stabilizing water bag, and the pressure stabilizing unit 3 is made of a seamless steel pipe with the diameter of DN 600. The water source 1 is a water storage tank and is used for providing a sufficient and clean water source for pressure testing. The water storage tank can be formed by welding thin steel plates, and can also be a purchased steel water tank or a purchased plastic water tank. The pressure test pump is selected according to the test pressure of the cooling wall of the blast furnace.
Specifically, the pressure stabilizing unit 3 includes a water inlet part, a water storage part, and a dispensing part; the water inlet part is connected with the output end of the pressure test pump 2 and is used for feeding water into the water storage part, and a water inlet valve is arranged on the water inlet part; the water storage part is used for storing water for measuring the pressure of the test unit 4, and a water storage pressure gauge is arranged on the water storage part; the distributing part is more than two water outlets uniformly arranged on the water storage part, the water outlets are arranged corresponding to the testing unit 4, and a water outlet valve is arranged on the distributing part. That is to say, the pressure stabilizing water drum is provided with a water inlet, a water outlet and a pressure gauge, and the water inlet and the water outlet are provided with a water inlet valve and a water outlet valve with good sealing performance for opening and closing control. Wherein, the inlet valve or the outlet valve can be but is not limited to a flange stop valve or a flange ball valve. Through setting up the pressure stabilizing unit, because the cooling water pipe water storage volume is less in the stave equipment, the water storage volume of pressure stabilizing water drum multiplicable pressure testing system provides stable pressure source for multiunit pressure testing equipment.
In a specific embodiment, the number of staves in the test unit 4 is 3 to 5. In order to improve the pressure measuring efficiency, a plurality of cooling walls are connected in series in a group of test units. However, in order to secure the pressure measuring effect, the number of the cooling walls in one test unit needs to be controlled. When the quantity of stave is 3 ~ 5, can guarantee pressure measurement efficiency, can also guarantee the pressure measurement effect.
It should be noted that the water source 1 is connected to the pressure testing pump 2, the pressure testing pump 2 is connected to the pressure stabilizing unit 3, and the pressure stabilizing unit 3 is connected to the testing unit 4 through the hydraulic hose 8. The hydraulic hose is used for connecting all equipment in the pressure testing system. In order to further improve the connection effect of the hydraulic hose 8 and each structural part, an O-shaped ring seal is selected at the joint. Because the hydraulic hose 8 for connection needs to be frequently disassembled, the sealing ring of the hose joint for the common pipeline is very easy to damage, and the pressure testing efficiency and the pressure testing effect are influenced. Through adopting the sealed hydraulic hose of O type circle, have compressive strength height, sealed effectual, can frequently dismantle the technological effect of used repeatedly.
In a particular embodiment, a sealed connection is provided at the connection of the hydraulic hose 8 with the water outlet of the stave 9 and/or the water inlet of the stave. The sealing connecting piece comprises a rubber plug and a water pipe, the diameter of the rubber plug is matched with the water outlet of the cooling wall and/or the water inlet of the cooling wall, a through hole is formed in the center of the rubber plug, and the water pipe is arranged in the through hole. Specifically, the sealing connecting piece is a rubber rod with the length of 100mm, the diameter of the rubber rod is slightly smaller than that of the cooling water pipe of the cooling wall, a hole is drilled in the center, a steel water pipe is arranged in the hole, and a hydraulic rubber pipe joint is welded on the outer side of the steel water pipe. The sealing connecting piece is arranged at the pipe orifice of the cooling water pipe of the cooling wall and is fixed by rubber elasticity, and the outer side of the sealing connecting piece is connected with the hydraulic rubber pipe.
The invention also provides a method for quickly testing the pressure of the cooling wall of the blast furnace, which comprises the following steps:
s1, communicating a water source 1, a pressure stabilizing unit 3, a pressure test pump 2 and a test unit 4, connecting a water inlet of a cooling wall 9 at the front end with the pressure stabilizing unit 3, and connecting more than two cooling walls 9 in series through test connecting pipes; a pressure gauge 5 and an exhaust valve 6 are arranged at the water outlet of the cooling wall at the tail end. Specifically, when the pressure test is carried out, a water inlet valve of the pressure stabilizing unit, a water outlet valve of the connecting equipment and an exhaust valve 6 at the tail end of the rapid pressure test device of the cooling wall of the blast furnace are opened.
In the specific implementation process, the first section to the fifth section of the cooling wall are not provided with screw threads, a fixture is required to be used for fixing and pressing, and a pressure test can be carried out after the fixture is firmly fixed. And screwing the screw thread before pressing the cooling wall above the fifth section, and performing a pressure test after confirming the sealing. The cooling wall is horizontally placed, two wood blocks are padded below the cooling wall, the water outlet pipe of the pressure test pump is connected to one water pipe of the cooling wall, the water pipes on the cooling wall are sequentially connected through the connecting pipe, and 5 cooling walls are connected in series to carry out pressure test.
S2, opening the water source 1 and the exhaust valve 6, starting the pressure test pump 2, exhausting residual air in the rapid pressure test device of the cooling wall of the blast furnace, and closing the exhaust valve 6; that is to say, before pressure testing, firstly, the water source, the pressure stabilizing unit and the cooling water pipe in the cooling wall in the blast furnace cooling wall rapid pressure testing device are flushed.
And S3, performing segmented pressure increase by using the pressure test pump 2 until the pressure reaches the set pressure, and closing the pressure test pump 2 and the water source 1 to perform pressure maintaining for the set time. Specifically, the pressure should be gradually increased in a sectional manner, and the pressure test equipment is knocked and checked in the process. And after the pressure is increased to the pressure testing pressure, closing the pressure testing pump and the water inlet and outlet valves on the pressure stabilizing water drum to carry out pressure maintaining, wherein the pressure maintaining time meets the design requirements, and the pressure maintaining process has no leakage and is qualified in pressure drop. And starting the electric pressure test pump to fill water into the cooling wall, reducing water inflow when a pressure value exists in the pressure test meter, closely watching the pressure meter, closing the pressure test pump when the pressure value is increased to 1.5Mpa specified by a drawing, and stabilizing the pressure for 30 minutes according to the drawing requirement.
S4, if the cooling wall 9 has no leakage and pressure reduction in the pressure maintaining process, the pressure test is qualified. Specifically, leakage and "sweating" were not allowed, and a pressure drop of not more than 3% was acceptable. And after the pressure of the cooling wall is tested, the water drain valve is opened to drain the water in the cooling wall, and the residual water in the water pipe is blown out.
And opening the tail end exhaust valve 6 to release pressure after the pressure test is qualified, removing the connecting hose, the rubber sealing plug, the pressure gauge 5, the exhaust valve 6 and the like after the pressure release is finished, and then connecting the pressure test to other cooling wall equipment which is not tested according to a pressure test system diagram.
It should be noted that, if one of the cooling walls has a problem during the pressure testing process, the corresponding outlet valve on the pressure stabilizing unit 3 connected to the cooling wall can be closed, the exhaust valve 6 at the end of the equipment of the group is opened to release pressure, and then the system is connected again to test the pressure after problem treatment or removal of the cooling wall. The pressure test of other groups of equipment is not affected in the process. After all the devices complete pressure testing, water in the blast furnace cooling wall rapid pressure testing device is emptied, and a water source water tank, a pressure stabilizing unit, a hydraulic hose, a pressure gauge, a valve and the like are properly stored and can be reused in next engineering. Moreover, the device has wide application range and can be used for pressure test work of other equipment with large quantity and small capacity, such as valves and the like; and can be used for many times, reduce use cost.
In conclusion, the invention relates to a rapid pressure test device and a rapid pressure test method for a cooling wall of a blast furnace, wherein the pressure stabilizing unit is arranged to increase the volume of a pressure test medium in the rapid pressure test device for the cooling wall of the blast furnace, so that the phenomenon of rapid pressure rise or instantaneous overpressure caused by unstable pressure of pressure test or small volume of the pressure test medium is avoided; through the communication mode that one pressure stabilizing unit corresponds to a plurality of test units and a plurality of cooling walls are arranged in one test unit in series, the simultaneous pressure test of the plurality of cooling walls is realized, and the pressure test efficiency is improved; the cooling walls are grouped according to the test units, if a group of cooling walls or one cooling wall has a problem, the cooling walls can react quickly, the test unit where the cooling wall is located is separated, and the pressure test of other test units is not influenced; the cooling wall is heavy and inconvenient to move; and the water source, the pressure testing pump and the pressure stabilizing unit are light in weight, and the structural parts are interconnected only by utilizing the hydraulic hose, so that on-site pressure testing can be carried out, the use frequency of hoisting equipment is reduced, the pressure testing cost is reduced, and the technical effect of pressure testing efficiency is improved.
However, it should be understood by those skilled in the art that various modifications can be made to the above-described apparatus and method for rapid pressure test of a cooling stave of a blast furnace without departing from the scope of the present invention. Accordingly, the scope of the invention should be determined from the content of the appended claims.
Claims (9)
1. A rapid pressure test device for a blast furnace cooling wall is characterized in that,
the device comprises a water source, a pressure stabilizing unit, a pressure test pump for connecting the water source and the pressure stabilizing unit, and a test unit for testing the cooling wall; wherein the content of the first and second substances,
the pressure stabilizing unit is used for distributing the water of the water source to each test unit;
the test unit comprises more than two cooling walls which are connected in series; in the test unit, a water inlet of a cooling wall positioned at the front end is connected with the pressure stabilizing unit, and a water outlet of the former cooling wall is connected with a water inlet of the latter cooling wall through a test connecting pipe; a pressure gauge and an exhaust valve are arranged at the water outlet of the cooling wall positioned at the tail end.
2. The rapid pressure test device for the cooling wall of the blast furnace according to claim 1,
the pressure stabilizing unit comprises a water inlet part, a water storage part and a dispensing part;
the water inlet part is connected with the output end of the pressure test pump and is used for feeding water into the water storage part, and a water inlet valve is arranged on the water inlet part;
the water storage part is used for storing water for measuring the pressure of the test unit, and a water storage pressure gauge is arranged on the water storage part;
the distribution part is more than two water outlets uniformly arranged on the water storage part, the water outlets are arranged corresponding to the test units, and a water outlet valve is arranged on the distribution part.
3. The rapid pressure test device for the cooling wall of the blast furnace according to claim 2,
the pressure stabilizing unit is made of a seamless steel pipe with the diameter of DN 600.
4. The blast furnace stave rapid pressure test device according to claim 1,
the number of the cooling walls in the test unit is 3-5.
5. The blast furnace stave rapid pressure test device according to claim 1,
the water source is connected with the pressure test pump, the pressure test pump is connected with the pressure stabilizing unit, and the pressure stabilizing unit is connected with the test unit through hydraulic hoses.
6. The method for rapid pressure testing of a cooling stave of a blast furnace according to claim 5, wherein,
and an O-shaped sealing ring is arranged at the pipe orifice of the hydraulic hose.
7. The rapid pressure test device for the cooling wall of the blast furnace as claimed in claim 5,
and a sealing connecting piece is arranged at the joint of the hydraulic hose and the water outlet of the cooling wall and/or the water inlet of the cooling wall.
8. The rapid pressure test device for the cooling wall of the blast furnace according to claim 7,
the sealing connecting piece comprises a rubber plug and a water pipe, the diameter of the rubber plug is matched with the water outlet of the cooling wall and/or the water inlet of the cooling wall, a through hole is formed in the center of the rubber plug, and the water pipe is arranged in the through hole.
9. A method for quickly testing the pressure of a cooling wall of a blast furnace is characterized in that,
the water source, the pressure stabilizing unit, the pressure test pump and the test unit are communicated, the water inlet of the cooling wall positioned at the front end is connected with the pressure stabilizing unit, and more than two cooling walls are connected in series through the test connecting pipe; a pressure gauge and an exhaust valve are arranged at the water outlet of the cooling wall positioned at the tail end;
opening a water source and the exhaust valve, starting a pressure test pump, discharging residual air in the rapid pressure test device of the cooling wall of the blast furnace, and closing the exhaust valve;
the pressure testing pump is used for carrying out sectional pressure rise until the set pressure is reached, and the pressure testing pump and a water source are closed for pressure maintaining for a set time;
if the cooling wall has no leakage and pressure reduction in the pressure maintaining process, the pressure test is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111595520.8A CN114635001A (en) | 2021-12-23 | 2021-12-23 | Rapid pressure testing device and method for cooling wall of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111595520.8A CN114635001A (en) | 2021-12-23 | 2021-12-23 | Rapid pressure testing device and method for cooling wall of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114635001A true CN114635001A (en) | 2022-06-17 |
Family
ID=81946200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111595520.8A Pending CN114635001A (en) | 2021-12-23 | 2021-12-23 | Rapid pressure testing device and method for cooling wall of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114635001A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202164314U (en) * | 2011-06-27 | 2012-03-14 | 中国华冶科工集团有限公司 | Pressure testing joint tool for blast furnace cooling wall |
| CN102809468A (en) * | 2012-05-30 | 2012-12-05 | 九冶建设有限公司 | Single body pressure testing tool, single body pressure testing tool combination and pressure testing method for blast furnace cooling equipment |
| CN204474701U (en) * | 2015-02-06 | 2015-07-15 | 天津二十冶建设有限公司 | A kind of blast furnace water-cooling but wall pressure testing device |
| US20190276906A1 (en) * | 2011-03-30 | 2019-09-12 | Macrae Technologies, Inc. | High heat flux regime coolers |
| CN211576535U (en) * | 2020-01-20 | 2020-09-25 | 中国华冶科工集团有限公司 | Pressure testing and stabilizing water bag |
-
2021
- 2021-12-23 CN CN202111595520.8A patent/CN114635001A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190276906A1 (en) * | 2011-03-30 | 2019-09-12 | Macrae Technologies, Inc. | High heat flux regime coolers |
| CN202164314U (en) * | 2011-06-27 | 2012-03-14 | 中国华冶科工集团有限公司 | Pressure testing joint tool for blast furnace cooling wall |
| CN102809468A (en) * | 2012-05-30 | 2012-12-05 | 九冶建设有限公司 | Single body pressure testing tool, single body pressure testing tool combination and pressure testing method for blast furnace cooling equipment |
| CN204474701U (en) * | 2015-02-06 | 2015-07-15 | 天津二十冶建设有限公司 | A kind of blast furnace water-cooling but wall pressure testing device |
| CN211576535U (en) * | 2020-01-20 | 2020-09-25 | 中国华冶科工集团有限公司 | Pressure testing and stabilizing water bag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107121371B (en) | Indoor simulation test system and method suitable for sand layer permeation grouting | |
| CN102069081B (en) | Flushing and detecting system for triple valve, solvent valve and spray gun of automatic machine | |
| CN107436261A (en) | A kind of PCCP hydraulic test of pipeline method | |
| CN105890845B (en) | Pipeline high strength and tightness test tool and method | |
| CN111733707B (en) | Bridge prestressed duct grouting device and construction method | |
| CN115935627A (en) | Method for prolonging fatigue life of hydrogen storage cylinder for station | |
| CN114635001A (en) | Rapid pressure testing device and method for cooling wall of blast furnace | |
| CN110260166A (en) | A kind of underground piping air tightness checking device and its application method | |
| CN213209455U (en) | Multifunctional skid-mounted valve pressure test and debugging complete equipment | |
| CN207656117U (en) | A kind of air inflation protecting device for welding of pipeline | |
| CN110595783B (en) | Pump pressure type liquid flow test system | |
| CN203191179U (en) | Single body pressure testing tool and single body pressure testing tool assembly for blast furnace cooling equipment | |
| CN211576535U (en) | Pressure testing and stabilizing water bag | |
| CN106840905B (en) | Comprehensive teaching experiment device for oil and gas pipeline pressure | |
| CN102809468A (en) | Single body pressure testing tool, single body pressure testing tool combination and pressure testing method for blast furnace cooling equipment | |
| CN212301092U (en) | Device for performing off-line hydrostatic test on hydrogen storage tank of nuclear power station | |
| CN204944762U (en) | PCCP steel cylinder sealing hydrostatic test machine | |
| CN210923075U (en) | Liquid flow test system | |
| KR100216708B1 (en) | Leakage test and measurement of atomic power plant tank and line | |
| CN110618250A (en) | Device and method for forming grouting reinforcement material under uniform loading condition | |
| CN117213743A (en) | Pressure test device for valve to be tested and use method thereof | |
| CN211697282U (en) | Pipeline pressure testing device | |
| CN221161211U (en) | Shaping and vulcanizing device for engineering tire | |
| CN216669182U (en) | Main line valve internal leakage detection device and circumferential weld repair operation system | |
| CN221197031U (en) | Gas replacement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220617 |
|
| RJ01 | Rejection of invention patent application after publication |