CN203561479U - A hydraulic tube plate pressing device - Google Patents
A hydraulic tube plate pressing device Download PDFInfo
- Publication number
- CN203561479U CN203561479U CN201320506185.4U CN201320506185U CN203561479U CN 203561479 U CN203561479 U CN 203561479U CN 201320506185 U CN201320506185 U CN 201320506185U CN 203561479 U CN203561479 U CN 203561479U
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- Prior art keywords
- flange
- tube sheet
- tube plate
- cylinder
- housing
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Abstract
The utility model discloses a hydraulic tube plate pressing device. A tube plate is pressed on a flange of a housing. The hydraulic tube plate pressing device is characterized in that the hydraulic tube plate pressing device comprises a plurality of pedestals fixed on the flange of the housing at intervals, each pedestal 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 be abutted against the tube plate, a thrust oil cylinder is arranged on the axial-direction portion, a plunger of the thrust oil cylinder in inserted into a through hole in the axial-direction portion to be abutted against the circumferential face of the flange, and meanwhile hydraulic oil pipelines provided 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 may accomplish pressure test and leakage finding for a heat exchanger.
Description
Technical field
The utility model 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 is mainly comprised of housing 1 ', tube bank (being called again fuse), bobbin carriage 2 ', unwarranted charge 3 ', floating head 4 ' etc., and wherein tube bank is comprised of heat exchanger tube 5 ' and the tube sheet 6 ' that is supported on heat exchanger tube two ends again, and the port of housing has flange 11 ', as shown in Figure 1.After heat exchanger processing completes and in operating repairs process, in order to ensure tube bank, do not leak, must carry out the work of pressure testing leakage detection.But before pressure testing leakage detection, need in advance tube sheet hold-down ring 7 ' (being commonly called as dummy-flange) to be placed on tube sheet outside, then hold-down ring is fastened with shell flange by a plurality of bolts 8 ' along circumferentially distributing again, to reach the object that clamps heat exchanger tube, see Fig. 2 and Fig. 3.
And for example, the existing patent No. is that China's invention of 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 of raising the nose above water to breathe on end housing body, in frock flange circle, be provided with at least one O RunddichtringO, 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 connected 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 workman will expend very large muscle power could be connected shell flange and dummy-flange by bolt, after construction simultaneously finishes, these dummy-flanges not only will occupy very large place and deposit, but also will configure professional, carry out daily keeping and maintenance.Obviously such fastening means, has not only expended people's muscle power, and has increased production cost and the handling cost of enterprise.
Utility model content
The utility model, for the present situation of prior art, provides the hydraulic pressure tube sheet that a kind of versatility is good, easy to use, maintenance cost is low compactor.
The utility model 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, described in each, pedestal has respectively the radial part that is positioned at tube sheet end face outside and the axial part that is positioned at flange side face outside, clamping cylinder is wherein installed in radial part, the plunger of this clamping cylinder can be through offseting with described tube sheet after the through hole in radial part, and push action cylinder is installed in described axial part, the plunger of this push action cylinder offsets with the side face of flange after stretching into the through hole in axial part, dispose the clamping cylinder that is respectively described simultaneously, 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 on the surface of contact of described clamping plate and L shaped back up pad, having corresponding mounting hole, 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 by bolt, the clamping plate and the L shaped back up pad that form pedestal are fixed on shell flange, 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, the snap-in force of Cylinder Plunger is circumferentially uniformly distributed along flange, strengthen sealing effectiveness.
Improve again, described in be respectively after clamping cylinder, push action cylinder provide in-line in the pipeline of hydraulic oil parallel with one another and be connected with hydraulic oil delivery side of pump again.Each clamping cylinder and push action cylinder unification are controlled by high-pressure oil pump like this, and action is simultaneously easy to control, and can improve compression effect.
Compared with prior art, the utility model has the advantage of: utilize 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, by the transmission of 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 by regulator solution pressure pressure, regulate easily the size of snap-in force, can also increase and decrease as required the number of clamping cylinder and push action cylinder, thereby the tube sheet that can make the utility model can be widely applicable for the heat interchanger of all size compresses, and also have be convenient to management, operation is light, convenient, the advantage that the efficiency of loading and unloading is high.
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 pressure testing leakage detection with hold-down ring in Fig. 1;
Fig. 3 is that end face structure schematic diagram is looked on a left side of Fig. 2;
Fig. 4 is the structural representation of the utility model hydraulic pressure tube sheet compactor;
Fig. 5 is that end face structure schematic diagram is looked on a 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 utility model.
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 in 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 in radial part; Push action cylinder 2 is installed in 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 in axial part.In the hydraulic fluid port of clamping cylinder 4, push action cylinder 2, be separately installed with rapid-acting coupling 8 simultaneously, and parallel with one another by in-line 9, after parallel connection, be connected with the outlet of high-pressure oil pump (not shown) 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 to be controlled, 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, 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 aforesaid operations process, regulator solution pressure pressure, can reach easily tube sheet is clamped in to the object on flange completely as required.Just can carry out the hydraulic testing by heat exchanger subsequently, detect and whether have seepage.After inspection, high-pressure oil pump stops, reversal valve action, the hydraulic oil of each clamping cylinder 4 and push action cylinder 2 is drawn to 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), pedestal described in each (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) is wherein installed in radial part, the plunger of this clamping cylinder (4) can be through offseting with described tube sheet (5) after the through hole in radial part, and push action cylinder (2) is installed in 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 in axial part, dispose the clamping cylinder (4) that is respectively described simultaneously, 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, 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, it is characterized in that: described in be respectively after clamping cylinder (4), push action cylinder (2) provide in-line (9) in the pipeline of hydraulic oil parallel with one another, then be connected with hydraulic oil delivery side of pump.
5. hydraulic pressure tube sheet compactor according to claim 1 and 2, it is characterized in that: described in be respectively after clamping cylinder (4), push action cylinder (2) provide in-line (9) in the pipeline of hydraulic oil parallel with one another, then be connected with hydraulic oil delivery side of pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320506185.4U CN203561479U (en) | 2013-08-19 | 2013-08-19 | A hydraulic tube plate pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320506185.4U CN203561479U (en) | 2013-08-19 | 2013-08-19 | A hydraulic tube plate pressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561479U true CN203561479U (en) | 2014-04-23 |
Family
ID=50511194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320506185.4U Expired - Lifetime CN203561479U (en) | 2013-08-19 | 2013-08-19 | A hydraulic tube plate pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561479U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439059A (en) * | 2013-08-19 | 2013-12-11 | 胡浩 | Hydraulic tube plate pressing device |
| CN105372021A (en) * | 2015-11-18 | 2016-03-02 | 天津天新机床制造有限公司 | Radiator pipe bundle finished product tightness test device |
-
2013
- 2013-08-19 CN CN201320506185.4U patent/CN203561479U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439059A (en) * | 2013-08-19 | 2013-12-11 | 胡浩 | Hydraulic tube plate pressing device |
| CN103439059B (en) * | 2013-08-19 | 2015-08-05 | 胡浩 | Hydraulic pressure tube sheet compactor |
| CN105372021A (en) * | 2015-11-18 | 2016-03-02 | 天津天新机床制造有限公司 | Radiator pipe bundle finished product tightness test device |
| CN105372021B (en) * | 2015-11-18 | 2018-09-11 | 天津天新机床制造有限公司 | Heat dissipation tube bank finished product tightness measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140423 Effective date of abandoning: 20150805 |
|
| RGAV | Abandon patent right to avoid regrant |