CN103439059A - Hydraulic tube plate pressing device - Google Patents
Hydraulic tube plate pressing device Download PDFInfo
- Publication number
- CN103439059A CN103439059A CN2013103631538A CN201310363153A CN103439059A CN 103439059 A CN103439059 A CN 103439059A CN 2013103631538 A CN2013103631538 A CN 2013103631538A CN 201310363153 A CN201310363153 A CN 201310363153A CN 103439059 A CN103439059 A CN 103439059A
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- China
- Prior art keywords
- flange
- tube sheet
- tube plate
- cylinder
- hydraulic
- 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.)
- Granted
Links
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 11
- 230000009471 action Effects 0.000 claims description 26
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 21
- 239000003921 oil Substances 0.000 abstract description 18
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000007667 floating Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a hydraulic tube plate pressing device. A tube plate is clamped on a flange of a shell. The hydraulic tube plate pressing device is characterized in that the hydraulic tube plate pressing device comprises a plurality of bases fixed on the flange of the shell at intervals, each base is provided with a radial-direction portion arranged at the outer side of a tube plate end face and an axial-direction portion arranged at the outer side of the circumferential face of the flange, wherein a clamping oil cylinder is arranged on the radial-direction portion, a plunger of the clamping oil cylinder can penetrate a through hole in the radial-direction portion to abut against the tube plate, a thrust oil cylinder is arranged on the axial-direction portion, a plunger of the thrust oil cylinder stretches into a through hole in the axial-direction portion to abut against the circumferential face of the flange, and meanwhile pipelines respectively providing hydraulic oil for the clamping oil cylinder and the thrust oil cylinder are configured. The hydraulic tube plate pressing device is good in generality, convenient to use and low in maintenance cost, and can accomplish pressure test and leak finding for a heat exchanger.
Description
Technical field
The present invention relates to a kind of hold down gag, the tube sheet compactor that particularly a kind of heat interchanger pressure testing, leakage detection are used.
Background technology
Heat interchanger is the equipment of cold fluid that the part heat of hot fluid is passed to, and has been widely used in the large production equipments such as oil exploitation, oil refining, thermoelectricity and nuclear power.It mainly by housing 1 ', tube bank (being called again fuse), bobbin carriage 2 ', unwarranted charge 3 ', raise the nose above water to breathe 4 ' etc. to form, wherein tube bank is comprised of heat exchanger tube 5 ' and the tube sheet 6 ' that is supported on the heat exchanger tube two ends again, the port of housing has flange 11 ', as shown in Figure 1.After heat exchanger processing completes and in the operating repairs process, in order to ensure tube bank, do not leak, must carry out the work of pressure testing leakage detection.But need in advance tube sheet hold-down ring 7 ' (being commonly called as dummy-flange) to be placed on the tube sheet outside before the pressure testing leakage detection, then hold-down ring is fastened with shell flange by a plurality of bolts 8 ' along circumferentially distributing again, to reach the purpose that clamps heat exchanger tube, see Fig. 2 and Fig. 3.
And for example, China's invention that the existing patent No. is ZL201210155405.3 also discloses a kind of pressure testing fixture for floating head type heat exchanger, it comprises: the frock flange circle that can be connected with the side flange sealing on floating head end housing body, be provided with at least one O RunddichtringO in frock flange circle, described O RunddichtringO makes to seal between floating tube sheet and frock flange circle.The advantage of this invention is: simple in structure, production cost is low, easy to operate, be a kind of pressure testing fixture for floating head type heat exchanger that can bear elevated pressures.
But, the heat interchanger specification of processing due to manufacturing enterprise is many, pressure rating is also many, in numerous heat interchanger installations, maintenance process, the shell flange of heat interchanger must be linked with the dummy-flange of the corresponding outfit of one one, could preferably the tube bank of each heat interchanger be clamped, complete pressure testing, leakage detection and the maintenance construction of tube bank.Therefore to prepare a lot of tube sheet hold-down rings or above-mentioned frock flange circle, therefore versatility is very poor, causing in work progress the workman will expend very large muscle power could link shell flange and dummy-flange by bolt, rear these dummy-flanges of construction end simultaneously not only will occupy very large place and deposit, but also will configure the professional, carry out daily keeping and maintenance.Obviously such fastening means, not only expended people's muscle power, and increased production cost and the handling cost of enterprise.
Summary of the invention
The present invention is directed to the present situation of prior art, the hydraulic pressure tube sheet that a kind of versatility is good, easy to use, maintenance cost is low compactor is provided.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of hydraulic pressure tube sheet compactor, tube sheet is clamped on the flange of housing, it is characterized in that: comprise that a plurality of intervals are fixed on the pedestal on the flange of housing, each described pedestal has respectively the radial part that is positioned at the tube sheet end face outside and the axial part that is positioned at the flange side face outside, clamping cylinder wherein is installed on radial part, the plunger of this clamping cylinder can be through offseting with described tube sheet after the through hole on radial part, and push action cylinder is installed on described axial part, the plunger of this push action cylinder offsets with the side face of flange after stretching into the through hole on axial part, dispose simultaneously and be respectively described clamping cylinder, push action cylinder provides the pipeline of hydraulic oil.
As improvement, described pedestal is comprised of clamping plate and L shaped back up pad, these clamping plate are close on a side of L shaped back up pad to form described radial part, another side of L shaped back up pad forms described axial part, and having corresponding mounting hole on the surface of contact of described clamping plate and L shaped back up pad, bolt is fixed on described clamping plate and L shaped back up pad on the flange of described housing by this mounting hole.Pedestal is made to Split type structure, and be fixed on shell flange by clamping plate and the L shaped back up pad that bolt will form pedestal, not only easy for installation, and be conducive to reduce the difficulty of processing of pedestal, thus reduce processing cost.
Improve, described a plurality of pedestals are circumferentially uniform along the flange of housing again.By adopting uniform mode, make the snap-in force of Cylinder Plunger circumferentially be uniformly distributed along flange, strengthen sealing effectiveness.
Improve, described being respectively after clamping cylinder, push action cylinder provide in-line in the pipeline of hydraulic oil parallel with one another is connected with the hydraulic oil delivery side of pump more again.Each clamping cylinder and push action cylinder unification are controlled by high-pressure oil pump like this, and action simultaneously is easy to control, and can improve the compression effect.
Compared with prior art, the invention has the advantages that: utilize the flange fixed pedestal, and rely on the clamping cylinder of installing on pedestal under the effect of hydraulic coupling, tube sheet to be pressed on the flange of housing, to realize the sealing between tube sheet and flange; Rely on simultaneously push action cylinder on pedestal by action of hydraulic force on the flange side face of housing, transmission by power, the hydraulic coupling of push action cylinder is finally acted on the periphery of tube sheet, radial component with the acting force of balance clamp locking oil cylinder, reduce the vibration of heat interchanger in pressure testing leakage detection process, thereby guaranteed the stability of heat interchanger in pressure testing leakage detection process.And, in use can regulate easily the size of snap-in force by the regulator solution pressure pressure, can also increase and decrease as required the number of clamping cylinder and push action cylinder, thereby the tube sheet that can make the present invention can be widely applicable for the heat interchanger of all size compresses, and also have be convenient to the management, operation is light, convenient, the advantage that the efficiency of loading and unloading is high.
The accompanying drawing explanation
Fig. 1 is movable tube sheets heat exchanger structural representation in prior art;
Fig. 2 compresses the structural representation of tube sheet during the pressure testing leakage detection with hold-down ring in Fig. 1;
Fig. 3 is that the end face structure schematic diagram is looked on the left side of Fig. 2;
Fig. 4 is the structural representation of hydraulic pressure tube sheet compactor of the present invention;
Fig. 5 is that the end face structure schematic diagram is looked on the left side of Fig. 4;
Fig. 6 is the partial enlarged drawing at A place in Fig. 4.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Fig. 4～6, hydraulic pressure tube sheet compactor in the present embodiment is for being clamped in tube sheet 5 flange 7 of housing 1, comprise on 12 flanges 7 that are fixed on housing 1 and along the circumferential uniform pedestal 3 of flange 7 of housing 1, this pedestal 3 is comprised of clamping plate 32 and L shaped back up pad 31, these clamping plate 32 are close on a side of L shaped back up pad 31 to form a radial part that is positioned at tube sheet end face 51 outsides, another side of L shaped back up pad 31 forms an axial part that is positioned at side face 71 outsides of flange 7, and have corresponding mounting hole on the surface of contact of clamping plate 32 and L shaped back up pad 31, bolt 6 is fixed on clamping plate 32 and L shaped back up pad 31 on the flange 7 of housing 1 by this mounting hole.Clamping cylinder 4 is installed in addition on the radial part of pedestal 3, and the plunger of this clamping cylinder 4 can be through offseting with tube sheet 5 after the through hole on radial part; Push action cylinder 2 is installed on the axial part of pedestal 3, and the plunger of this push action cylinder 2 offsets with the side face 71 of flange 7 after stretching into the through hole on axial part.Be separately installed with rapid-acting coupling 8 in the hydraulic fluid port of clamping cylinder 4, push action cylinder 2 simultaneously, and parallel with one another by in-line 9, after parallel connection, with the outlet of high-pressure oil pump (not shown), be connected again, adopt this hydraulic connecting mode, make the oil-feed of each clamping cylinder 4 and push action cylinder 2 share same pipeline.In the present embodiment, this in-line 9 also can be used as return line, as long as a reversal valve is installed on this pipeline, control, when oil-feed, high-pressure oil pump is to each clamping cylinder 4 and 2 while of push action cylinder input hydraulic pressure oil, thereby promoting each plunger stretches out, plunger only needs small displacement tube sheet 5 can be clamped, and during oil return, high-pressure oil pump stops, the reversal valve action, hydraulic oil flows back to fuel tank.
During pressure testing, first allow bolt 6 through the mounting hole on pedestal and the bolt hole of flange 7, pedestal 3 is fixed on flange 7, then start high-pressure oil pump, at this moment clamping cylinder 4 is pressed on tube sheet 5 on the flange 7 of housing 1 under the effect of hydraulic coupling, realize the sealing between tube sheet 5 and flange 7, simultaneously push action cylinder 2 by action of hydraulic force on the side face of the flange 7 of housing 1, owing to thering is the groove 72 that holds coverboard 5 on flange 7, now, the hydraulic coupling of push action cylinder 2 has finally acted on the periphery 52 of tube sheet 5 by the power transmission of groove 72 sidewalls 73, balance the radial component of acting force of clamping cylinder 2, reduced the vibration of heat interchanger in pressure testing leakage detection process, thereby guaranteed the stability of heat interchanger in pressure testing leakage detection process.In the aforesaid operations process, the regulator solution pressure pressure, can reach easily tube sheet is clamped in to the purpose on flange fully as required.Just can carry out the hydraulic testing by heat exchanger subsequently, detect whether seepage is arranged.After inspection, high-pressure oil pump stops, the reversal valve action, the hydraulic oil of each clamping cylinder 4 and push action cylinder 2 is drawn to the oil return case, then unclamp bolt 6, hydraulic pressure tube sheet compactor is pulled down to preservation, hydraulic pressure tube sheet compactor not only can continue to reuse, but also is applicable to the heat interchanger pressure testing leakage detection use of other specification.
Claims (5)
1. a hydraulic pressure tube sheet compactor, tube sheet (5) is clamped on the flange (7) of housing (1), it is characterized in that: comprise that a plurality of intervals are fixed on the pedestal (3) on the flange of housing (1) (7), each described pedestal (3) has respectively the radial part that is positioned at tube sheet (5) end face (51) outside and the axial part that is positioned at flange (7) side face (71) outside, clamping cylinder (4) wherein is installed on radial part, the plunger of this clamping cylinder (4) can be through offseting with described tube sheet (5) after the through hole on radial part, and push action cylinder (2) is installed on described axial part, the plunger of this push action cylinder (2) offsets with the side face (71) of flange (7) after stretching into the through hole on axial part, dispose simultaneously and be respectively described clamping cylinder (4), push action cylinder (2) provides the pipeline (8) of hydraulic oil.
2. hydraulic pressure tube sheet compactor according to claim 1, it is characterized in that: described pedestal (3) is comprised of clamping plate (32) and L shaped back up pad (31), these clamping plate (32) are close on a side of L shaped back up pad (31) to form described radial part, another side of L shaped back up pad (31) forms described axial part, and have corresponding mounting hole on the surface of contact of described clamping plate (32) and L shaped back up pad (31), bolt (6) is fixed on described clamping plate (32) and L shaped back up pad (31) on the flange (7) of described housing (1) by this mounting hole.
3. hydraulic pressure tube sheet compactor according to claim 1 and 2, it is characterized in that: described a plurality of pedestals (3) are circumferentially uniform along the flange (7) of housing (1).
4. hydraulic pressure tube sheet compactor according to claim 3 is characterized in that: described being respectively after clamping cylinder (4), push action cylinder (2) provide in-line (9) in the pipeline of hydraulic oil parallel with one another is connected with the hydraulic oil delivery side of pump again.
5. hydraulic pressure tube sheet compactor according to claim 1 and 2 is characterized in that: described being respectively after clamping cylinder (4), push action cylinder (2) provide in-line (9) in the pipeline of hydraulic oil parallel with one another is connected with the hydraulic oil delivery side of pump again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310363153.8A CN103439059B (en) | 2013-08-19 | 2013-08-19 | Hydraulic pressure tube sheet compactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310363153.8A CN103439059B (en) | 2013-08-19 | 2013-08-19 | Hydraulic pressure tube sheet compactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103439059A true CN103439059A (en) | 2013-12-11 |
| CN103439059B CN103439059B (en) | 2015-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310363153.8A Expired - Fee Related CN103439059B (en) | 2013-08-19 | 2013-08-19 | Hydraulic pressure tube sheet compactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103439059B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3425114A1 (en) * | 1983-03-02 | 1986-01-16 | Mannesmann AG, 4000 Düsseldorf | Sealing tool for test presses |
| CN2898400Y (en) * | 2005-08-14 | 2007-05-09 | 吴平 | Booster with automatically positioning and compensating sealing mechanism |
| CN200949654Y (en) * | 2006-05-15 | 2007-09-19 | 郑州人造金刚石及制品工程技术研究中心 | Piston and cylinder lid sealing structure |
| CN201081598Y (en) * | 2007-08-01 | 2008-07-02 | 中国石油大庆石油化工总厂 | Pressure test device for floating head exchanger |
| CN201133538Y (en) * | 2007-11-29 | 2008-10-15 | 袁国庆 | Self-sealing rotary compensator |
| CN201588935U (en) * | 2010-02-03 | 2010-09-22 | 宝鸡石油机械有限责任公司 | Sealing device for expansion joint of offshore drilling riser |
| EP1939485B1 (en) * | 2006-12-29 | 2010-11-10 | Aktiebolaget SKF | A hydraulic sealing and guide unit for a rod of a one-pipe shock absorber |
| CN203561479U (en) * | 2013-08-19 | 2014-04-23 | 胡浩 | A hydraulic tube plate pressing device |
-
2013
- 2013-08-19 CN CN201310363153.8A patent/CN103439059B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3425114A1 (en) * | 1983-03-02 | 1986-01-16 | Mannesmann AG, 4000 Düsseldorf | Sealing tool for test presses |
| CN2898400Y (en) * | 2005-08-14 | 2007-05-09 | 吴平 | Booster with automatically positioning and compensating sealing mechanism |
| CN200949654Y (en) * | 2006-05-15 | 2007-09-19 | 郑州人造金刚石及制品工程技术研究中心 | Piston and cylinder lid sealing structure |
| EP1939485B1 (en) * | 2006-12-29 | 2010-11-10 | Aktiebolaget SKF | A hydraulic sealing and guide unit for a rod of a one-pipe shock absorber |
| CN201081598Y (en) * | 2007-08-01 | 2008-07-02 | 中国石油大庆石油化工总厂 | Pressure test device for floating head exchanger |
| CN201133538Y (en) * | 2007-11-29 | 2008-10-15 | 袁国庆 | Self-sealing rotary compensator |
| CN201588935U (en) * | 2010-02-03 | 2010-09-22 | 宝鸡石油机械有限责任公司 | Sealing device for expansion joint of offshore drilling riser |
| CN203561479U (en) * | 2013-08-19 | 2014-04-23 | 胡浩 | A hydraulic tube plate pressing device |
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| Publication number | Publication date |
|---|---|
| CN103439059B (en) | 2015-08-05 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Huifang Inventor after: Wang Yi Inventor after: Wu Haifang Inventor after: Li Jinhai Inventor after: Yuan Dan Inventor after: Li Guangjun Inventor after: Wang Jiqing Inventor after: Ge Junkai Inventor after: Zhu Jianguo Inventor after: Zheng Kunli Inventor before: Hu Hao |
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| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151124 Address after: 315100 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Patentee after: NINGBO YINZHOU POWER EQUIPMENT MANUFACTURING PLANT Patentee after: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Address before: 315040 Zhejiang province Ningbo City Jiangdong District CAS 625 Lane Road, room 906 104 Patentee before: Hu Hao |
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| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315104 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Patentee after: NINGBO YINZHOU ELECTRIC POWER EQUIPMENT MANUFACTORY Co.,Ltd. Patentee after: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Address before: 315100 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Patentee before: NINGBO YINZHOU POWER EQUIPMENT MANUFACTURING PLANT Patentee before: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Co-patentee after: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Patentee after: NINGBO YINZHOU ELECTRIC POWER EQUIPMENT MANUFACTORY Co.,Ltd. Address before: 315104 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Co-patentee before: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Patentee before: NINGBO YINZHOU ELECTRIC POWER EQUIPMENT MANUFACTORY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191101 Address after: 315104 No.123, Qiming Road, Yinzhou District, Ningbo City, Zhejiang Province Co-patentee after: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Patentee after: Yinzhou Electric Branch of Ningbo Yongneng Electric Power Industry Investment Co.,Ltd. Address before: 315104 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Co-patentee before: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Patentee before: NINGBO YINZHOU ELECTRIC POWER EQUIPMENT MANUFACTORY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |