CN213956671U - On-line pressure testing device for floating head heat exchanger - Google Patents
On-line pressure testing device for floating head heat exchanger Download PDFInfo
- Publication number
- CN213956671U CN213956671U CN202023121844.1U CN202023121844U CN213956671U CN 213956671 U CN213956671 U CN 213956671U CN 202023121844 U CN202023121844 U CN 202023121844U CN 213956671 U CN213956671 U CN 213956671U
- Authority
- CN
- China
- Prior art keywords
- pressure
- flange
- pressure testing
- tube
- floating
- 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.)
- Active
Links
Images
Abstract
The utility model provides an online pressure test device for floating head heat exchanger, including the shell side of floating head heat exchanger and the tube side that is arranged in the inner chamber, the tube side includes the tube bank I that a part is arranged in the inner chamber and the tube bank II that a part stretches out outer head cover side flange, the pressure test device is arranged outside the outer head cover side flange, and the pressure test device is provided with a pressure input tube and a pressure gauge component; the pressure testing device comprises a pressure testing flange, the pressure testing flange is matched with the inner diameter of an outer head cover side flange, the outer end face of the pressure testing flange is provided with a middle cylinder section which extends to the tail end of the tube bundle II, the tail end of the middle cylinder section is provided with a pressure testing floating flange matched with the inner diameter of the middle cylinder section, and a sealing gland is arranged in the pressure testing floating flange to isolate the tube bundle II from the outside. The utility model discloses utilize former equipment part for the inspection when new system tube bank, repeatedly usable supports the low-cost device of online pressure testing simultaneously, and obvious material saving consumes, shortens the parking and overhauls the time limit for a project.
Description
Technical Field
The utility model relates to an equipment of sealed technology of test, concretely relates to an online pressure testing device for floating head heat exchanger is last.
Background
The floating head type heat exchanger (according to GB/T151-2014 heat exchanger) has a complex structure and large equipment volume, the pressure vessel is mainly composed of a shell pass and a tube pass which are mutually isolated, the shell pass is an external monomer vessel, and the tube pass is composed of a large number of tube bundles, so that the shell pass for inspection and a floating head end device for tube head pressure resistance test can be manufactured during the new tube bundle inspection, and the pressure test device loses value after the pressure test of the tube bundles is qualified, thereby causing waste; meanwhile, the tube bundle is also frequently leaked and failed in the operation process of the heat exchanger in the production period, if the tube bundle is partially leaked and failed, the tube bundle leakage detection is needed or the tube bundle is needed to be replaced in time, and the tube bundle positioned in the shell pass is in a blind area and cannot be detected, so that the external leakage detection can be only carried out on one section of the tube bundle (floating head end) extending out of the outer head cover side flange, and therefore the new tube bundle can be stopped and replaced when the new tube bundle is in place under the condition that the external shell pass is not disassembled, and the maintenance period is too long.
Disclosure of Invention
In order to overcome the deficiencies in the prior art, the utility model provides an online pressure testing device for floating head heat exchanger is last: the part of components of the original equipment are used for inspection when the tube bundle is newly manufactured, can be repeatedly used, and simultaneously supports a low-cost device for online pressure testing, so that the material consumption is obviously saved, and the parking maintenance period is shortened.
The utility model discloses a realize through following technical scheme: an online pressure test device for a floating head heat exchanger comprises a shell pass of the floating head heat exchanger and a tube pass positioned in an inner cavity, wherein the tube pass comprises a tube bundle I with a part positioned in the inner cavity and a tube bundle II with a part extending out of a flange at the side of an outer head cover; the pressure testing device comprises a pressure testing flange, the pressure testing flange is matched with the inner diameter of the outer head cover side flange, the outer end face of the pressure testing flange is provided with a middle cylinder section and extends to the tail end of the tube bundle II, the tail end of the middle cylinder section is provided with a pressure testing floating flange matched with the inner diameter of the middle cylinder section, a sealing gasket is arranged in the inner diameter of the pressure testing floating flange, and the pressure testing floating flange is internally provided with a sealing gland to isolate the tube bundle II from the outside.
In the scheme, the pressure input pipe and the pressure gauge assembly are both arranged on the outer circular surface of the pressure testing flange.
In the scheme, the pressure test floating head tube plate matched with the tube bundle II is arranged in the inner diameter of the middle shell ring, and the tube bundle II penetrates through the pressure test floating head tube plate to freely stretch and retract.
In the scheme, the pressure input pipe and the pressure gauge assembly are both arranged on the outer circular surface of the middle cylinder section.
In the scheme, the pressure test floating head pipe plate matched with the pipe bundle II is arranged in the inner diameter of the pressure test floating head flange, and the pipe bundle II penetrates through the pressure test floating head pipe plate to freely stretch and retract.
In the scheme, the pressure input pipe and the pressure gauge component are both connected with the stop valves in series.
The utility model relates to an online pressure testing device for floating head heat exchanger is last compares with prior art, and its beneficial effect is: 1. when a new tube bundle is tested and tested on line, the device can utilize the shell pass partial structure of the original equipment to carry out new installation test, so that a matched shell pass testing device is omitted, and the material consumption is greatly saved;
2. when the pressure test is carried out on line in the production period, the device can utilize the partial structure of the shell pass of the original equipment, so that the shell pass and the process pipeline of the existing equipment are not disassembled, the workload is reduced, and the pressure test can be conveniently and rapidly carried out on site;
3. the device can flexibly set the positions of a pressure measuring part and a pressure test medium inlet according to the length of the tube bundle penetrating through the floating head tube plate, and has strong adaptability;
4. the device can be reserved due to low cost and small size, and can be repeatedly used when the tube bundle is replaced next time, so that the cost is saved.
Drawings
Fig. 1 is a schematic structural view of the on-line pressure testing device used for the floating head heat exchanger of the present invention;
fig. 2 is another schematic structural diagram of the on-line pressure testing device used for the floating head heat exchanger of the present invention;
fig. 3 is a partial structural schematic diagram of the floating head heat exchanger.
In the figure: 1. the pressure testing device comprises a pressure testing flange, 2 pressure gauge components, 3 middle cylinder sections, 4 sealing rings, 5 pressure testing floating head flanges, 6 sealing pressing covers, 7 pipe bundles II, 8 pressure input pipes, 9 stop valves II, 10 stop valves I, 11 outer head cover side flanges, 12 pipe bundles I, 13 pipe sides and 14 shell sides.
Detailed Description
The following description will be made with reference to the accompanying drawings and specific embodiments of an online pressure testing device for a floating head heat exchanger according to the present invention.
Fig. 1 is a schematic structural view of the online pressure testing device used on the floating head heat exchanger of the present invention, fig. 3 is a schematic structural view of a part of the floating head heat exchanger, in the figure, the online pressure testing device, including a shell pass 14 of the floating head heat exchanger and a tube pass 13 located in an inner cavity, the tube pass 13 includes a tube bundle I12 partially located in the inner cavity and a tube bundle II7 partially extending out of an outer head cover side flange 11, the outer side of the outer head cover side flange 11 is provided with a pressure testing device, and the pressure testing device is provided with a pressure input tube 8 and a pressure gauge component 2; pressure testing device includes pressure testing flange 1, the internal diameter adaptation of pressure testing flange 1 and outer end cover side flange 11, the outer terminal surface of pressure testing flange 1 sets up outside the end that middle shell ring 3 extends to tube bank II7, the end of middle shell ring 3 sets up the pressure testing floating flange 5 with the internal diameter looks adaptation of middle shell ring 3, set up the seal groove in the internal diameter of pressure testing floating flange 5, the cover has seal ring 4 in the seal groove, the gland 6 that sets up the looks adaptation in the pressure testing floating flange 5 is with tube bank II7 isolated with external. When the test pressure is higher, the specification of the pressure test flange 1 is thicker, so that the width L is larger1When the pressure test flange is small, the pressure input pipe 8 and the pressure gauge assembly 2 are both enough to be arranged on the outer circular surface of the pressure test flange 1, the pressure test floating head tube plate 15 matched with the tube bundle II7 is arranged in the inner diameter of the middle cylindrical section 3, and the tube bundle II7 penetrates through the pressure test floating head tube plate 15 to freely stretch and retract. Fig. 2 is the utility model discloses another kind of schematic structure for an online pressure testing device on floating head heat exchanger, in the picture, lower when experimental pressure, the specification of pressure testing flange 1 selection is thinner, and then makes width L1The pressure input pipe 8 and the pressure gauge component 2 are arranged on the outer circular surface of the middle cylindrical section 3, the pressure testing floating head tube plate 15 matched with the tube bundle II7 is arranged in the inner diameter of the pressure testing floating head flange 5, and the tube bundle II7 penetrates through the pressure testing floating head tube plate 15 to freely stretch and retract. The pressure input pipe 8 and the pressure gauge component 2 are respectively connected with a stop valve I9 and a stop valve II10 in series.
This device of leakproofness detects when installing as new system tube bank, paste outer head lid side flange 11 with the pressure testing flange 1 of the device earlier, make tube bank II7 stretch into the device and get into middle shell ring 3, survey the condition that tube bank II7 got into from one section of pressure testing floating head flange 5, realize quick location, then use the bolt to fasten pressure testing flange 1 on outer head lid side flange 11, pack pressure testing floating head flange 5 with sealing gland 6 again in, make tube bank II isolated with external, pressure testing flange 1, middle shell ring 3 and pressure testing floating head flange receive the extrusion of sealing gland 6 terminal surfaces and, make this sealed device wholly possess the sealing effect to the shell side.
During the pressure testing, pressure gauge subassembly 2 does not install earlier before the pressure testing, and it is as the gas vent when shell side 1 fills water, and pressure water passes through pressure input pipe 8 and gets into shell side 1 through pressure testing flange 1 and fills water to shell side 1 to soak tube bank I12, close stop valve II9 after waiting to fill the water end and guaranteeing the air exhaust in shell side 1, pass through threaded connection pressure gauge subassembly 2 afterwards, then begin the withstand voltage test, through the pressurization to shell side 1 indirectly play the sealed detection to tube side 13 like this. Pressure gauge subassembly 2 is taken off after the pressure testing, then opens stop valve I10, stop valve II9 one by one and exhausts the pressure testing medium, and the pressure testing finishes, takes off this testing device at last and waits to use next time.
When the device is used for daily inspection, the cylinder body of the shell side 1 is not disassembled, the detection device is arranged on the shell side 1 according to the actual position by the same steps, and then the subsequent hydrostatic test can be carried out on the tube side 13.
The utility model discloses an utilize former equipment shell side part structure to seal up and detect, loading and unloading convenient and fast, detachable construction reduces processing welding part, has also saved because of preparation pressure testing device's unreasonable consumption, and this testing arrangement overall structure is fixed, repeatedly usable improves maintenance efficiency, reduces and overhauls the engineering volume.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make various changes or modifications equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments by the technical spirit of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides an online pressure testing device for on floating head heat exchanger, includes shell side (14) of floating head heat exchanger and tube side (13) that are arranged in the inner chamber, tube side (13) include partly tube bank I (12) that are arranged in the inner chamber and partly stretch out tube bank II (7) of outer head cover side flange (11), its characterized in that: a pressure testing device is arranged on the outer side of the outer head cover side flange (11), and a pressure input pipe (8) and a pressure gauge component (2) are respectively arranged on the pressure testing device; the pressure testing device comprises a pressure testing flange (1), the pressure testing flange (1) is matched with the inner diameter of an outer head cover side flange (11), the outer end face of the pressure testing flange (1) is provided with a middle shell ring (3) and extends to the outside of the end of a tube bundle II (7), the end of the middle shell ring (3) is provided with a pressure testing floating flange (5) matched with the inner diameter of the middle shell ring (3), a sealing gasket (4) is arranged in the inner diameter of the pressure testing floating flange (5), and the pressure testing floating flange (5) is internally provided with a sealing gland (6) to isolate the tube bundle II (7) from the outside.
2. The on-line pressure testing device for the floating head heat exchanger according to claim 1, wherein: the pressure input pipe (8) and the pressure gauge component (2) are both arranged on the outer circular surface of the pressure test flange (1).
3. The on-line pressure testing device for the floating head heat exchanger according to claim 2, wherein: a pressure test floating head tube plate (15) matched with the tube bundle II (7) is arranged in the inner diameter of the middle shell ring (3), and the tube bundle II (7) penetrates through the pressure test floating head tube plate (15) to freely stretch and retract.
4. The on-line pressure testing device for the floating head heat exchanger according to claim 1, wherein: the pressure input pipe (8) and the pressure gauge component (2) are both arranged on the outer circular surface of the middle cylindrical section (3).
5. The on-line pressure testing device for the floating head heat exchanger according to claim 4, wherein: a pressure test floating head tube plate (15) matched with the tube bundle II (7) is arranged in the inner diameter of the pressure test floating flange (5), and the tube bundle II (7) penetrates through the pressure test floating head tube plate (15) to freely stretch and retract.
6. The on-line pressure testing device for the floating head heat exchanger according to claim 2 or 4, wherein: and the pressure input pipe (8) and the pressure gauge component (2) are both connected with stop valves in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023121844.1U CN213956671U (en) | 2020-12-23 | 2020-12-23 | On-line pressure testing device for floating head heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023121844.1U CN213956671U (en) | 2020-12-23 | 2020-12-23 | On-line pressure testing device for floating head heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213956671U true CN213956671U (en) | 2021-08-13 |
Family
ID=77193878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023121844.1U Active CN213956671U (en) | 2020-12-23 | 2020-12-23 | On-line pressure testing device for floating head heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213956671U (en) |
-
2020
- 2020-12-23 CN CN202023121844.1U patent/CN213956671U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206523408U (en) | A kind of waterproof roll water proof apparatus | |
| CN109374221A (en) | It is a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance | |
| CN108507879A (en) | Microfissure triaxial stress seepage flow grouting test system and its application method | |
| CN204717358U (en) | Pipeline gas leak detecting device | |
| CN209458570U (en) | A kind of pipe flange detection device | |
| CN213956671U (en) | On-line pressure testing device for floating head heat exchanger | |
| CN203824830U (en) | Auxiliary pipeline pressure test device | |
| CN201828386U (en) | Double-opposite-peak sealed leakage detector of corrugated pipe sealing ring | |
| CN107478399A (en) | A kind of method that pressure testing is carried out to row's side of a ship outer tube | |
| CN212300761U (en) | Pneumatic check valve air tightness testing arrangement that dispatches from factory | |
| CN209961426U (en) | Quick measuring device of muffler leakproofness | |
| CN210487184U (en) | Air pressure detection device for U-shaped heat exchange tube | |
| CN209525069U (en) | A kind of steel tube coupling thread seal system safety testing device | |
| CN112924296A (en) | Submarine shield tunnel stress deformation and water stop failure test system and method | |
| CN201945422U (en) | Leak testing detector for ammonia pump check valve | |
| CN207675377U (en) | A kind of automobile liquid storage dryer leakage detection apparatus | |
| CN202393565U (en) | Pilot valve gas tightness testing device | |
| CN206847871U (en) | A kind of device for the leak detection of high-pressure oil pipe high pressure | |
| CN214952722U (en) | Train blast pipe pressurization test device | |
| CN109297806B (en) | Semi-automatic rock core clamp holder with radial and axial functions and operation method thereof | |
| CN205670069U (en) | Blast furnace copper cooling stave hydraulic pressure pressure testing device | |
| CN217637871U (en) | A aerify detection device for gas heater tube bank | |
| CN217637807U (en) | Nuclear power plant containment wall coating sealing test device | |
| CN215338881U (en) | Discharge pressure performance test device for exhaust valve | |
| CN220356608U (en) | Flange sealing performance detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |