CN213337132U - Water pressure test device for heat exchanger field maintenance - Google Patents
Water pressure test device for heat exchanger field maintenance Download PDFInfo
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- CN213337132U CN213337132U CN202022486219.0U CN202022486219U CN213337132U CN 213337132 U CN213337132 U CN 213337132U CN 202022486219 U CN202022486219 U CN 202022486219U CN 213337132 U CN213337132 U CN 213337132U
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Abstract
The utility model relates to a hydraulic test device for heat exchanger field maintenance, which comprises a water inlet pipeline (2), a water inlet blind plate (3), an air outlet blind plate (4) and a pressure gauge (5); the water inlet blind plate (3) and the air outlet blind plate (4) are both provided with channels, one end of each channel is arranged on the inner surface of the blind plate, the other end of each channel is arranged on the side surface of the blind plate, and the outer diameters of the two blind plates are larger than the inner diameters of a shell side connecting pipe flange (7) and a pipeline connecting flange (8) of the heat exchanger; the water outlet end of the water inlet pipeline (2) is connected with a channel port on the side surface of the water inlet blind plate (3), and the pressure gauge (5) is arranged at the channel port on the side surface of the air exhaust blind plate (4). During the use, two blind plates are established respectively between shell side flange (7) of being connected of heat exchanger both sides and pipeline flange (8), and one side is intake, the opposite side is discharged, accomplishes the hydrostatic test then. The utility model discloses having accelerated the maintenance progress, having practiced thrift the time cost, reduced the loss, and application scope is wide.
Description
Technical Field
The utility model relates to a pressure vessel overhauls technical field, especially relates to a heat exchanger is on-spot overhauls and uses hydraulic test device.
Background
The heat exchanger is an energy-saving device for transferring heat between materials between two or more fluids with different temperatures, and is used for transferring heat from the fluid with higher temperature to the fluid with lower temperature to make the temperature of the fluid reach the index specified by the process so as to meet the requirements of process conditions, and is also one of main devices for improving the utilization rate of energy.
The heat exchanger belongs to a pressure container, must be subjected to supervision and management of a special equipment supervision and inspection management mechanism, and is mainly manufactured in a manufacturing plant and installed on the site after a hydrostatic test is qualified. At present, domestic oil refineries and chemical plants generally carry out one-time device shutdown maintenance for three or four years, and in order to ensure the heat exchange efficiency of a heat exchanger and the operation safety of equipment, the heat exchanger needs to be subjected to field inspection, repair and hydrostatic test.
The heat exchanger is divided into a tube pass and a shell pass according to the flow direction of a medium, and the tube pass and the shell pass of the heat exchanger are respectively connected with a pipeline through flanges after the heat exchanger is installed in place on site. The device is very urgent in the normal condition of stopping for overhaul or repairing the heat exchanger when the heat exchanger leaks, and the disassembly of the heat exchanger body, the disassembly of the tube side pipeline, the shell side pipeline and the flange, the reinstallation of the repaired equipment, the reinstallation of the pipeline and the repaired flange and the like are carried out according to the traditional method (the heat exchanger needing to be repaired is disassembled and then returns to a manufacturing plant for repairing). The overhaul period is very long, the overhaul schedule of the whole device can be greatly influenced, if the heat exchanger leaks in the running period of the device, the repair time of the heat exchanger can be hundreds of thousands or even millions of losses after being prolonged for one day.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a heat exchanger field overhauls uses hydraulic test device is provided to accelerate the maintenance progress, the save time cost reduces the loss.
In order to solve the problems, the hydraulic test device for the field overhaul of the heat exchanger comprises a water inlet pipeline, a water inlet blind plate, an air outlet blind plate and a pressure gauge; the water inlet blind plate and the air exhaust blind plate are both provided with channels, one end of each channel is arranged on the inner surface of the blind plate, the other end of each channel is arranged on the side surface of the blind plate, and the outer diameters of the water inlet blind plate and the air exhaust blind plate are larger than the inner diameters of a shell side connecting pipe flange and a pipeline connecting flange of the heat exchanger; one end of the water inlet pipeline is connected with the channel opening on the side surface of the water inlet blind plate, the other end of the water inlet pipeline is used for filling water, and the pressure gauge is arranged at the channel opening on the side surface of the air exhaust blind plate; when the heat exchanger is used, the water inlet blind plate and the air outlet blind plate are respectively arranged between the shell side connecting pipe flange and the pipeline connecting flange at two sides of the heat exchanger, and the inner surfaces of the water inlet blind plate and the air outlet blind plate are oppositely arranged.
Preferably, the water inlet blind plate and the air outlet blind plate can be accommodated in all mounting holes between the shell side pipe connecting flange and the pipeline connecting flange.
Preferably, one end of the channel on the water inlet blind plate and the air outlet blind plate is arranged at the central position of the inner surface of the blind plate, and the other end of the channel is arranged at the position of half of the side surface of the blind plate.
Compared with the prior art, the utility model has the following advantage:
1. accelerate the maintenance progress, save time cost: at the heat exchanger scene, through to shell side flange and pipeline flange's dismantlement the utility model discloses hydrostatic test can begin in test device's installation, has saved a large amount of times such as the repacking of taking out, equipment restoration later repacking and pipeline, flange of heat exchanger body, can accelerate for the owner and salvage the progress.
2. And (3) loss reduction: the loss caused by emergency stop or normal maintenance shutdown is reduced to the maximum extent.
3. The application range is wide: the device can be used for on-site maintenance or emergency shutdown and first-aid repair of various types of heat exchange equipment in industries such as oil refining, chemical industry, coal chemical industry, salt chemical industry, chlor-alkali chemical industry and the like.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is the embodiment of the utility model provides a heat exchanger is hydrostatic test device for field overhaul's application scene graph.
Fig. 2 is the embodiment of the utility model provides a water inlet pipeline and water inlet blind plate's structural schematic.
Fig. 3 is the embodiment of the utility model provides a structure sketch map of gas vent blind plate and manometer.
In the figure: 1-first equipment pipeline, 2-water inlet pipeline, 3-water inlet blind plate, 4-exhaust port blind plate, 5-pressure gauge, 6-second equipment pipeline, 7-shell side pipe connecting flange and 8-pipeline connecting flange.
Detailed Description
Referring to fig. 1 to 3, the embodiment of the utility model provides a heat exchanger is on-spot overhauls and uses hydraulic test device, the device mainly include inlet pipe 2, water inlet blind plate 3, gas vent blind plate 4 and manometer 5.
The water inlet blind plate 3 and the air outlet blind plate 4 are both provided with channels, one end of each channel is arranged at the central position of the inner surface (the surface close to the shell side connecting pipe flange 7 in the using process) of the blind plate, and the other end of each channel is arranged at the position of half of the side surface of the blind plate; one end of the water inlet pipeline 2 is welded with a channel opening on the side surface of the water inlet blind plate 3, the other end of the water inlet pipeline is used for filling water, and the pressure gauge 5 is arranged at the channel opening on the side surface of the air outlet blind plate 4 through a pressure gauge seat; the outer diameters of the water inlet blind plate 3 and the air outlet blind plate 4 are larger than the inner diameters of a shell side pipe connecting flange 7 and a pipeline connecting flange 8 of the heat exchanger.
The above arrangement mode of the channels on the water inlet blind plate 3 and the air outlet blind plate 4 enables the heat exchanger to be overhauled on site, and the problem that a hydrostatic test pressure gauge seat, a pressure gauge and a water inlet and outlet pipeline cannot be installed due to limited space is well solved.
When the heat exchanger is used, the water inlet blind plate 3 and the air outlet blind plate 4 are respectively arranged between the shell side connecting pipe flange 7 and the pipeline connecting flange 8 at two sides of the heat exchanger, and the inner surfaces of the water inlet blind plate and the air outlet blind plate are oppositely arranged. The channel on the water inlet blind plate 3 is connected with the water inlet pipeline 2 and used for inputting test water into the shell side, and the channel on the air outlet blind plate 4 is used for discharging air in the shell side and is matched with the pressure gauge 5 to know the pressure condition.
Further, water inlet blind plate 3 and gas vent blind plate 4 can hold all mounting holes inboardly between shell side flange 7 and pipeline flange 8, like this, demolish the bolt of former dress connection shell side flange 7 and pipeline flange 8, and put into the blind plate between the two after, can directly utilize the mounting hole of matcing between shell side flange 7 and the pipeline flange 8 to pass through bolted connection and realize fixed the installation of blind plate, simple structure, easy dismounting.
And a sealing ring is arranged at the joint of the inner surfaces of the water inlet blind plate 3 and the air outlet blind plate 4 and the shell side connecting pipe flange 7, and an annular groove for placing the sealing ring is arranged on the inner surface of the blind plate.
Based on the hydraulic test device for field overhaul of the heat exchanger disclosed in the above embodiment, the utility model discloses still the corresponding use method who provides the device specifically as follows:
(1) bolts for connecting the shell side pipe connecting flange 7 and the pipeline connecting flange 8 on two sides of the heat exchanger are respectively disassembled, and a hydraulic expander is utilized to jack up a gap between the shell side pipe connecting flange 7 and the pipeline connecting flange 8.
(2) The water inlet blind plate 3 and the air outlet blind plate 4 are respectively inserted between the shell side pipe connecting flange 7 and the pipeline connecting flange 8 at two sides of the heat exchanger, the inner surfaces of the two blind plates are opposite, and then the shell side pipe connecting flange 7 and the pipeline connecting flange 8 are connected through bolts so as to fix the blind plates between the two flanges.
(3) Water is filled into the shell side through the water inlet blind plate 3 and the water inlet pipeline 2, and then the water pressure test is completed by matching with the air outlet on the air outlet blind plate 4 and the pressure gauge 5.
The shell pass is irrigated through the water inlet pipeline 2, in the process that liquid in the cavity of the shell pass is full of liquid, residual air in the cavity is discharged through an exhaust channel on the exhaust port blind plate 4, and the pressure gauge 5 displays the current exhaust pressure condition. And (3) after the shell side is continuously boosted to the specified hydrostatic test pressure, checking equipment: if the outer surface of the equipment has no leakage, no visible deformation and no abnormal sound in the test process, the equipment meets the strength requirement, and the hydrostatic test is qualified; otherwise, the hydraulic test needs to be stopped immediately, and the hydraulic test is carried out again after the equipment is repaired, so that the hydraulic test is completed.
The technical scheme provided by the utility model is introduced in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (3)
1. A hydraulic test device for field overhaul of a heat exchanger is characterized by comprising a water inlet pipeline (2), a water inlet blind plate (3), an air outlet blind plate (4) and a pressure gauge (5); the water inlet blind plate (3) and the air outlet blind plate (4) are both provided with channels, one end of each channel is arranged on the inner surface of the blind plate, the other end of each channel is arranged on the side surface of the blind plate, and the outer diameters of the water inlet blind plate (3) and the air outlet blind plate (4) are larger than the inner diameters of a shell side connecting pipe flange (7) and a pipeline connecting flange (8) of the heat exchanger; one end of the water inlet pipeline (2) is connected with a channel opening on the side surface of the water inlet blind plate (3), the other end of the water inlet pipeline is used for irrigating water, and the pressure gauge (5) is arranged at the channel opening on the side surface of the air outlet blind plate (4); when the heat exchanger is used, the water inlet blind plate (3) and the air outlet blind plate (4) are respectively arranged between the shell side pipe connecting flange (7) and the pipeline connecting flange (8) at two sides of the heat exchanger, and the inner surfaces of the water inlet blind plate and the air outlet blind plate are oppositely arranged.
2. The device according to claim 1, characterized in that the inlet blind (3) and the outlet blind (4) can be accommodated inside all the mounting holes between the shell-side pipe flange (7) and the pipe connection flange (8).
3. The device according to claim 1, characterized in that the channels of the inlet blind (3) and the outlet blind (4) open at one end in the center of the inner face of the blind and at the other end in the lateral half of the blind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022486219.0U CN213337132U (en) | 2020-11-02 | 2020-11-02 | Water pressure test device for heat exchanger field maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022486219.0U CN213337132U (en) | 2020-11-02 | 2020-11-02 | Water pressure test device for heat exchanger field maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213337132U true CN213337132U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022486219.0U Active CN213337132U (en) | 2020-11-02 | 2020-11-02 | Water pressure test device for heat exchanger field maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213337132U (en) |
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2020
- 2020-11-02 CN CN202022486219.0U patent/CN213337132U/en active Active
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