CN217786475U - Tube nest type oil cooler detection device - Google Patents
Tube nest type oil cooler detection device Download PDFInfo
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- CN217786475U CN217786475U CN202221707477.XU CN202221707477U CN217786475U CN 217786475 U CN217786475 U CN 217786475U CN 202221707477 U CN202221707477 U CN 202221707477U CN 217786475 U CN217786475 U CN 217786475U
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- Prior art keywords
- oil
- butterfly valve
- cooler
- electric butterfly
- valve
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- 238000001514 detection method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010949 copper Substances 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 20
- 239000000498 cooling water Substances 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 238000012360 testing method Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 46
- 238000001816 cooling Methods 0.000 abstract description 9
- 239000010687 lubricating oil Substances 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model relates to a tube nest type oil cooler detection device, which comprises a cooler body internally provided with a copper tube, wherein a water inlet pipe and a water return pipe for realizing the circulation flow of cooling water inside and outside the cooler body are fixed on the peripheral wall of the cooler body from front to back, and an oil inlet pipe and an oil return pipe for realizing the circulation flow of lubricating oil inside and outside the copper tube are fixed on the outer wall of a sealing head at the rear end of the cooler body at intervals from top to bottom; the water inlet pipe is provided with a first electric butterfly valve, the water return pipe is provided with a second electric butterfly valve, the oil return pipe is provided with a third electric butterfly valve, the oil inlet pipe is provided with a fourth electric butterfly valve, and the side wall of the water return pipe and the side wall of the oil return pipe are both connected with an electric connection type pressure gauge; the air cylinder is provided with an air cylinder, a first electric butterfly valve and a fourth electric butterfly valve are communicated with an exhaust cavity of the air cylinder through pipelines, and an air inlet cavity of the air cylinder is communicated with an external air source through a two-position four-way valve. The utility model discloses can detect the inside and outside leakage point that appears of cooler copper pipe, realize the cooler to the cooling of fluid, guarantee equipment normal operating.
Description
Technical Field
The utility model relates to a shell and tube oil cooler detection device.
Background
The water-cooled oil cooler is an oil cooling device commonly used in a cold rolling system, and is also suitable for the departments of metallurgy, chemical industry, mines, light industry, heavy industry and the like. The equipment can realize heat exchange of two liquid media with certain temperature difference through the cooler shell Cheng Guancheng respectively, so that the purposes of reducing oil temperature and ensuring normal operation of the equipment are achieved, and the equipment is mainly used for equipment lubricating oil cooling, hydraulic system oil cooling, variable speed system oil cooling, transformer oil cooling and the like.
At present, most of the on-line used horizontal oil coolers are used for cooling oil in a thin oil station of a rolling mill, and as the interior of a tubular cooler is made of brass tubes, the interior of the tubular cooler can be corroded by cooling water after long-period operation, and leakage points can be caused on the copper tubes in severe cases to cause cooling water to enter an oil tank, so that lubricating oil in the thin oil station of the rolling mill is emulsified and deteriorated, and if the lubricating oil is not treated in time, the lubricating oil can be irreversibly deteriorated to cause equipment faults of a finishing mill. The oil cooler, which is an important device for cooling oil in the thin oil station of the rolling mill, must be periodically tested. In addition, some micro corrosion points on the copper pipe are corroded from inside to outside, some micro corrosion points are corroded from outside to inside to perforate, and pressure test detection is required to be carried out on the outside and the inside during detection. In addition, quality detection is required to be carried out when some new coolers are purchased, otherwise, leakage caused by unqualified quality after installation can also have great influence on production.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: in order to overcome the defects in the prior art, the utility model provides a detection device capable of rapidly detecting the leakage condition of the copper pipe inside the tube type oil cooler.
The utility model provides a technical scheme that its technical problem adopted is: a tube array type oil cooler detection device comprises a cooler body, wherein copper tubes are axially arranged in the cooler body, a water inlet tube and a water return tube are fixed on the peripheral wall of the cooler body in a front-back mode, and the water inlet tube and the water return tube are used for realizing the internal and external circulation flow of cooling water in the cooler body; the water inlet pipe is provided with a first electric butterfly valve, the water return pipe is provided with a second electric butterfly valve, the oil return pipe is provided with a third electric butterfly valve, the oil inlet pipe is provided with a fourth electric butterfly valve, and the side wall of the water return pipe and the side wall of the oil return pipe are both connected with an electric connection type pressure gauge;
the air cylinder is provided with an air cylinder, the first electric butterfly valve and the fourth electric butterfly valve are communicated with an exhaust cavity of the air cylinder through pipelines, and an air inlet cavity of the air cylinder is communicated with an external air source through a two-position four-way valve.
Specifically, a piston is arranged in an air inlet cavity of the air cylinder in a sliding mode, the end face of the piston is connected with a piston rod capable of extending into an exhaust cavity, the end portion of the piston rod is fixedly connected with a movable diaphragm, and the side wall of the front end of the exhaust cavity is provided with an air suction valve containing a steel ball.
Furthermore, the two-position four-way valve is communicated with an external air source through a pneumatic triple piece and a ball valve.
The electric connection type pressure gauge line is connected with a warning lamp, so that testers can observe the leakage condition in time conveniently.
An oil discharge valve is connected to the pipeline on the outer wall of the middle part of the cooler body, the oil discharge valve is connected with an oil tank through a pipeline, and lubricating oil in a copper pipe of the cooler can be discharged into the oil tank before testing; the pipeline on the outer wall of the front end sealing head of the cooler body is connected with a drain valve so as to discharge cooling water in the cooler before testing.
The utility model has the advantages that: the utility model discloses can detect the inside and outside leakage point that appears of cooler copper pipe, ensure that the cooler operation is normal, realize the refrigerated purpose of thin oil station fluid cooling to guarantee equipment normal operating.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the cylinder of the present invention.
In the figure: 1. the air cooler comprises a cooler body, a water inlet pipe, a water return pipe, an oil inlet pipe, a water return pipe, a fuel discharge valve, a fuel tank, a water discharge valve, a first electric butterfly valve, a second electric butterfly valve, a third electric butterfly valve, a fourth electric butterfly valve, a warning lamp, a cylinder 15-1, an air inlet cavity, a gas discharge cavity, a piston 15-3, a piston rod 15-4, a movable membrane 15-5, an air suction valve 15-6, a two-position four-way valve 16 and a pneumatic triple piece 17.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, the detection device for the tube-type oil cooler comprises a cooler body 1, copper tubes are axially arranged in the cooler body 1, a water inlet tube 2 and a water return tube 3 for realizing the internal and external circulation flow of cooling water in the cooler body 1 are fixed on the circumferential wall of the cooler body 1 in a front-back manner, and an oil inlet tube 4 and an oil return tube 5 for realizing the internal and external circulation flow of lubricating oil in the copper tubes are fixed on the outer wall of a rear end seal head of the cooler body 1 at intervals from top to bottom; the pipeline on the outer wall of the middle part of the cooler body 1 is connected with an oil discharge valve 6 for discharging lubricating oil in the copper pipe, the oil discharge valve 6 is connected with an oil tank 7 through a pipeline, and the pipeline on the outer wall of the front end sealing head of the cooler body 1 is connected with a drain valve 8 for discharging cooling water in the cooler body 1.
A first electric butterfly valve 9 is arranged on the water inlet pipe 2, a second electric butterfly valve 10 is arranged on the water return pipe 3, a third electric butterfly valve 11 is arranged on the oil return pipe 5, a fourth electric butterfly valve 12 is arranged on the oil inlet pipe 4, and the side wall of the water return pipe 3 and the side wall of the oil return pipe 5 are both connected with an electric connection type pressure gauge 13; the line of the electric connection type pressure gauge 13 is connected with a warning lamp 14.
As shown in figure 2, an air cylinder 15 is arranged beside a cooler body 1, a cylinder body of the air cylinder 15 comprises an upper air inlet cavity 15-1 and a lower exhaust cavity 15-2, a piston 15-3 is arranged in the air inlet cavity 15-1 in a sliding mode, the end face of the piston 15-3 is connected with a piston rod 15-4 movably extending into the exhaust cavity 15-2, the end portion of the piston rod 15-4 is fixedly connected with a movable membrane 15-5, and the side wall of the front end of the exhaust cavity 15-2 is provided with an air suction valve 15-6 containing steel balls.
The first electric butterfly valve 9 and the fourth electric butterfly valve 12 are both communicated with an exhaust cavity 15-2 of the cylinder 15 through pipelines, an air inlet cavity 15-1 of the cylinder 15 is connected with a two-position four-way valve 16 through a pipeline, and the two-position four-way valve 16 is communicated with an external air source through a pneumatic triple piece 17 and a ball valve.
Before testing, opening an oil discharge valve 6 to discharge all oil in the copper pipe of the oil cooler into an oil tank 7, and closing the oil discharge valve 6 after emptying; then, the drain valve 8 is opened, and the drain valve 8 is closed after the cooling water in the cooler body 1 is completely drained.
The ball valve is opened, air enters a pneumatic triple piece 17 for air source filtration, the air enters a two-position four-way valve 16 after being regulated to six kilograms of pressure, when a pressure test switch is started, a first electric butterfly valve 9 is opened, a second electric butterfly valve 10, a third electric butterfly valve 11 and a fourth electric butterfly valve 12 are in a closed state, the two-position four-way valve 16 is continuously switched between power on and power off, an A port and a B port of the two-position four-way valve 16 are continuously switched between air inlet and air return, a piston rod 15-4 is pushed by a piston 15-3 to continuously reciprocate up and down, when the piston rod 15-4 rises, a movable diaphragm 15-5 is in an opened state, steel balls inside an air suction valve 15-6 are in an opened state, air enters the air suction valve 15-6, when the piston rod 15-4 descends, the movable diaphragm 15-5 is in a closed state, the steel balls inside the air suction valve 15-6 are also in a closed state, and at the moment, the air cylinder 15 compresses air into the cooler body 1 through the first electric butterfly valve 9; when the air pressure outside the copper pipe of the cooler reaches 15kg, and an electric connection type pressure gauge 13 on the side wall of the water return pipe 3 displays 15kg of pressure, the first electric butterfly valve 9 is triggered to be closed, the two-position four-way valve 16 stops being electrified, the inside of the cooler body 1 is in a pressure maintaining state at the moment, the pressure maintaining time is thirty minutes, if the pressure inside the cooler body 1 is lower than 15kg within thirty minutes, the warning lamp 14 is lightened, and a leakage point inwards outside the copper pipe can be judged; if the internal pressure of the cooler body 1 is not lower than 15kg, the electric connection type pressure gauge 13 triggers the second electric butterfly valve 10 to be opened, exhaust is carried out for five seconds, after five seconds, the first electric butterfly valve 9 is arranged, the second electric butterfly valve 10 and the third electric butterfly valve 11 are closed, the fourth electric butterfly valve 12 is in an open state, the air cylinder 15 compresses air into the copper pipe of the cooler through the fourth electric butterfly valve 12, the inside of the copper pipe is subjected to pressurization test, if a warning lamp 14 connected with the electric connection type pressure gauge 13 arranged on the oil return pipe 5 is turned on, it can be judged that an outward leakage point exists inside the copper pipe, if the internal pressure of the copper pipe is not lower than 15kg, it is judged that the cooler is not leaked.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.
Claims (5)
1. A tube array type oil cooler detection device comprises a cooler body, wherein copper tubes are axially arranged in the cooler body, a water inlet tube and a water return tube are fixed on the peripheral wall of the cooler body in a front-back mode, and the water inlet tube and the water return tube are used for realizing the internal and external circulation flow of cooling water in the cooler body; the method is characterized in that: the water inlet pipe is provided with a first electric butterfly valve, the water return pipe is provided with a second electric butterfly valve, the oil return pipe is provided with a third electric butterfly valve, the oil inlet pipe is provided with a fourth electric butterfly valve, and the side wall of the water return pipe and the side wall of the oil return pipe are both connected with an electric connection type pressure gauge;
the air cylinder is provided with an air cylinder, the first electric butterfly valve and the fourth electric butterfly valve are communicated with an exhaust cavity of the air cylinder through pipelines, and an air inlet cavity of the air cylinder is communicated with an external air source through a two-position four-way valve.
2. The apparatus for testing a tubular oil cooler according to claim 1, wherein: the air inlet cavity of the air cylinder is internally provided with a piston in a sliding manner, the end face of the piston is connected with a piston rod which can extend into the exhaust cavity, the end part of the piston rod is fixedly connected with a movable diaphragm, and the side wall of the front end of the exhaust cavity is provided with an air suction valve internally provided with a steel ball.
3. The apparatus for testing a tubular oil cooler according to claim 1, wherein: the two-position four-way valve is communicated with an external air source through a pneumatic triple piece and a ball valve.
4. The apparatus for testing a tubular oil cooler as set forth in claim 1, wherein: the electric connection type pressure gauge line is connected with a warning lamp.
5. The apparatus for testing a tubular oil cooler according to claim 1, wherein: cooler body middle part outer wall on the pipeline be connected with the oil extraction valve, the oil extraction valve passes through the pipe connection oil tank, cooler body front end closing head outer wall on the pipeline be connected with the drain valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221707477.XU CN217786475U (en) | 2022-07-04 | 2022-07-04 | Tube nest type oil cooler detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221707477.XU CN217786475U (en) | 2022-07-04 | 2022-07-04 | Tube nest type oil cooler detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217786475U true CN217786475U (en) | 2022-11-11 |
Family
ID=83937771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221707477.XU Active CN217786475U (en) | 2022-07-04 | 2022-07-04 | Tube nest type oil cooler detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217786475U (en) |
-
2022
- 2022-07-04 CN CN202221707477.XU patent/CN217786475U/en active Active
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