CN207147719U - A kind of heat exchanger aids in leakage detection apparatus - Google Patents
A kind of heat exchanger aids in leakage detection apparatus Download PDFInfo
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- CN207147719U CN207147719U CN201720859975.9U CN201720859975U CN207147719U CN 207147719 U CN207147719 U CN 207147719U CN 201720859975 U CN201720859975 U CN 201720859975U CN 207147719 U CN207147719 U CN 207147719U
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- nipple
- flange
- housing
- heat exchanger
- annular flange
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Abstract
The utility model discloses a kind of heat exchanger to aid in leakage detection apparatus, including first annular flange and floating head fixing device, and the internal diameter of first annular flange is less than the external diameter of fixed tube sheet, and the internal diameter of short-circuit device is more than the external diameter of floating tubesheet；First annular flange is provided with the first screw corresponding with the first end flanges upper bolt hole of housing；One end of floating head fixing device is hermetically connected with the shell, and the other end and the floating tubesheet of floating head fixing device are tightly connected.When being hunted leak using the utility model heat exchanging device, airtight cavity is formed between housing, fixed tube sheet, floating tubesheet, nipple, is passed through liquid from the inlet of housing, heat exchanger tube tube wall is if any perforation, liquid then enters in tubulation from housing, tube side both sides can be seen that tubulation, convenient observation, can quick and precisely find leakage heat exchanger tube, it is easy to subsequent maintenance or replacing, the repair time is shortened, improves overhaul efficiency, ensures equipment stable operation.
Description
Technical field：
It the utility model is related to a kind of auxiliary leakage detection apparatus, more particularly to a kind of heat exchanger auxiliary leakage detection apparatus.
Background technology：
Movable tube sheets heat exchanger needs periodically to carry out leakage detection maintenance, and traditional leakage detection mode is that ammonia oozes method leakage detection, i.e., using floating
Head and bobbin carriage fix floating tubesheet one end, after the housing water flowing pressurize of heat exchanger, tubulation situation, tubulation from fixed tube sheet side
The water for inside having water to ooze out or ooze out, which is met phenolphthalein and reddened, is judged as fistulae.
Following drawback be present in traditional leakage detection mode：1. leakage detection is inaccurate, during checking leak of heat exchanger, need to try one's best heat exchanger water
Placing flat, on the one hand, one end of heat exchanger floating head tube sheet is closed using raising the nose above water to breathe, can only be from heat exchanger fixed tube sheet one end series of observations
, can not accurate leakage detection because tubulation is oversize inside pipe；On the other hand, in fixed tube sheet side, the water of top tube leaking can be along pipe
Plate is flowed into the tubulation of lower section, causes the Guan Douwei blow-by tubes for having water below erroneous judgement；2. leakage detection efficiency is low, after confirming fistulae,
Need in time to block the fistulae both sides having confirmed that, avoid the water in fistulae from influenceing the judgement of other pipes, it is therefore desirable to repeated disassembled and assembled
Heat exchanger floating head and bobbin carriage, and heat exchanger tube enormous amount, leakage detection time length, delay normal production run.
Utility model content：
The purpose of this utility model is to provide a kind of heat exchanger auxiliary leakage detection apparatus efficiently hunted leak.
The purpose of this utility model is implemented by following technical scheme, and a kind of heat exchanger aids in leakage detection apparatus, including the first ring
Shape flange and floating head fixing device, the internal diameter of the first annular flange are less than the external diameter of fixed tube sheet, the fixed dress of raising the nose above water to breathe
The internal diameter for the nipple put is more than the external diameter of floating tubesheet；
The first annular flange is provided with the first screw corresponding with the first end flanges upper bolt hole of the housing；
One end of the floating head fixing device is hermetically connected with the shell, and the other end of the floating head fixing device is managed with raising the nose above water to breathe
Plate is tightly connected.
Further, the floating head fixing device includes nipple, and the internal diameter of the nipple is more than the outer of floating tubesheet
Footpath, one end of the nipple are fixed with first flange, the second hold-carrying with the housing are offered in the first flange
Second screw corresponding to blue upper bolt hole；Annular groove is provided with the inwall of the nipple, O is provided with the annular groove
Type sealing ring.
Further, the floating head fixing device includes nipple and the second annular flange, and the internal diameter of the nipple is big
It is identical with the internal diameter of the nipple in the external diameter of floating tubesheet, the internal diameter of second annular flange；The two of the nipple
End is fixed with first flange and second flange respectively, is offered in the first flange in the second end flanges with the housing
Second screw corresponding to bolt hole；The second flange and second annular flange are bolted；The second flange
With being equipped with chamfering in the interior edge of second annular flange, O-ring seal is provided with the chamfering.
The advantages of the utility model：
When being hunted leak using the utility model heat exchanging device, formed between housing, fixed tube sheet, floating tubesheet, nipple close
Closed chamber body, liquid is passed through from the inlet of housing, heat exchanger tube tube wall if any perforation, liquid then enter in tubulation from housing,
Tube side both sides can be seen that tubulation, convenient observation, can quick and precisely find leakage heat exchanger tube, be easy to subsequent maintenance or replacing, contract
The short repair time, overhaul efficiency is improved, ensure equipment stable operation.
Brief description of the drawings：
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is that a kind of 1 heat exchanger of embodiment aids in leakage detection apparatus use state figure；
Fig. 2 is enlarged diagram at Fig. 1 A；
Fig. 3 is that a kind of 2 heat exchanger of embodiment aids in leakage detection apparatus use state figure；
Fig. 4 is enlarged diagram at Fig. 3 A.
In figure：Fixed tube sheet 1, housing 2, the first end flanges 3, first annular flange 4, the second end flanges 5, nipple 6, float
Head tube plate 7, annular groove 8, O-ring seal 9, the first screw 10, the second screw 11, second flange 12, the second annular flange 13,
3rd screw 14, gasket seal 15, first flange 16, tubulation 17.
Embodiment：
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment 1：
A kind of heat exchanger aids in leakage detection apparatus, including for being connected with the first end flanges 3 of fixed tube sheet 1 and housing 2
First annular flange 4, and the nipple 6 being connected for the second end flanges 5 with housing 2, the internal diameter of first annular flange 4 are small
In the external diameter of fixed tube sheet 1, the internal diameter of nipple 6 is more than the external diameter of floating tubesheet 7, and annular is provided with the inwall of nipple 6
Groove 8, annular groove 8 is interior to be provided with O-ring seal 9；
First annular flange 4 is provided with first screw 10 corresponding with the upper bolt hole of the first end flanges 3 of housing 2；
One end of nipple 6 is fixed with internal diameter and the internal diameter identical first flange 15 of nipple 6, in first flange 15
Offer second screw 11 corresponding with the upper bolt hole of the second end flanges 5 of housing 2.
In leak detection, by the bobbin carriage at movable tube sheets heat exchanger both ends and raise the nose above water to breathe to dismantle, fixed tube sheet 1 is installed in housing 2
First annular flange 4 is installed in one end, and the first end flanges 3 of first annular flange 4 and housing 2 are bolted, fixed tube sheet
1 and first is sealed by gasket seal between end flanges 3；
One end that floating tubesheet 7 is provided with housing 2 is arranged nipple 6, first flange 15 and the housing 2 of nipple 6
Second end flanges 5 are bolted, and are sealed between the end flanges 5 of first flange 15 and second of nipple 6 by gasket seal,
Sealed between nipple 6 and floating tubesheet 7 by O-ring seal 9；
Liquid outlet on housing 2 is closed, then forms envelope between housing 2, fixed tube sheet 1, floating tubesheet 7, nipple 6
Closed chamber body, liquid is passed through from the inlet of housing 2, the tube wall of heat exchanger tube 16 then enters tubulation if any perforation, liquid from housing 2
In 16, tube side both sides can be seen that inside tubulation 16, convenient observation, carry out quick and precisely finding leakage tubulation 16 during leakage detection,
It is easy to subsequent maintenance or replacing, ensures equipment stable operation.
Embodiment 2：
A kind of heat exchanger aids in leakage detection apparatus, including for being connected with the first end flanges 3 of fixed tube sheet 1 and housing 2
First annular flange 4, and the nipple 6 being connected for the second end flanges 5 with housing 2, the internal diameter of first annular flange 4 are small
In the external diameter of fixed tube sheet 1, the internal diameter of nipple 6 is more than the external diameter of floating tubesheet 7；
First annular flange 4 is provided with first screw 10 corresponding with the upper bolt hole of the first end flanges 3 of housing 2；
One end of nipple 6 is fixed with internal diameter and the internal diameter identical first flange 15 of nipple 6, in first flange 15
Offer second screw 11 corresponding with the upper bolt hole of the second end flanges 5 of housing 2；
The other end of nipple 6 is provided with internal diameter and the internal diameter identical second flange 12 of nipple 6, and it also includes the second annular
Flange 13, the annular flange 13 of second flange 12 and second are spirally connected；The internal diameter of second annular flange 13 and the internal diameter of second flange 12
It is identical；Chamfering is equipped with the interior edge of the annular flange 13 of second flange 12 and second, in the annular flange of second flange 12 and second
O-ring seal 9 is provided with chamfering between 13.
In leak detection, by the bobbin carriage at movable tube sheets heat exchanger both ends and raise the nose above water to breathe to dismantle, fixed tube sheet 1 is installed in housing 2
First annular flange 4 is installed in one end, and the first end flanges 3 of first annular flange 4 and housing 2 are bolted, fixed tube sheet
1 and first is sealed by gasket seal between end flanges 3；
One end that floating tubesheet 7 is provided with housing 2 is arranged the annular flange 13 of nipple 6 and second, and the of nipple 6
Second end flanges 5 of one flange 15 and housing 2 are bolted, the annular flange 13 of second flange 12 and second of nipple 6
It is bolted；Sealed between the end flanges 5 of first flange 15 and second of nipple 6 by gasket seal, first flange 15
And O-ring seal 9 is set in second chamfering between annular flange 13, for Sealing pipe 6 and floating tubesheet 7；
Liquid outlet on housing 2 is closed, then forms envelope between housing 2, fixed tube sheet 1, floating tubesheet 7, nipple 6
Closed chamber body, liquid is passed through from the inlet of housing 2, the tube wall of heat exchanger tube 16 then enters tubulation if any perforation, liquid from housing 2
In 16, tube side both sides can be seen that tubulation 16, convenient observation, carries out quick and precisely finding leakage tubulation 16 during leakage detection, is easy to
Subsequent maintenance or replacing, ensure equipment stable operation.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (3)
1. a kind of heat exchanger aids in leakage detection apparatus, it is characterised in that it includes first annular flange and floating head fixing device, described
The internal diameter of first annular flange is less than the external diameter of fixed tube sheet, and the internal diameter of the nipple of the floating head fixing device, which is more than, raises the nose above water to breathe to manage
The external diameter of plate；
The first annular flange is provided with the first screw corresponding with the first end flanges upper bolt hole of the housing of heat exchanger；
One end of the floating head fixing device and the second end flanges of the housing are tightly connected, the floating head fixing device it is another
One end is tightly connected with the floating tubesheet.
2. a kind of heat exchanger auxiliary leakage detection apparatus according to claim 1, it is characterised in that the floating head fixing device includes
The nipple, the internal diameter of the nipple are more than the external diameter of the floating tubesheet, and one end of the nipple is fixed with the
One flange, the second screw corresponding with the second end flanges upper bolt hole of the housing is offered in the first flange；
Annular groove is provided with the inwall of the nipple, O-ring seal is provided with the annular groove.
3. a kind of heat exchanger auxiliary leakage detection apparatus according to claim 1, it is characterised in that the floating head fixing device includes
The nipple and the second annular flange, the internal diameter of the nipple are more than the external diameter of the floating tubesheet, second annular
The internal diameter of flange is identical with the internal diameter of the nipple；The both ends of the nipple are fixed with first flange and the second method respectively
Orchid, the second screw corresponding with the second end flanges upper bolt hole of the housing is offered in the first flange；It is described
Second flange and second annular flange are bolted；In the second flange and the interior edge of second annular flange
Chamfering is equipped with, O-ring seal is provided with the chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720859975.9U CN207147719U (en) | 2017-07-14 | 2017-07-14 | A kind of heat exchanger aids in leakage detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720859975.9U CN207147719U (en) | 2017-07-14 | 2017-07-14 | A kind of heat exchanger aids in leakage detection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207147719U true CN207147719U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720859975.9U Active CN207147719U (en) | 2017-07-14 | 2017-07-14 | A kind of heat exchanger aids in leakage detection apparatus |
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| Country | Link |
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| CN (1) | CN207147719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253843A (en) * | 2017-07-14 | 2019-01-22 | 新能能源有限公司 | A kind of heat exchanger auxiliary leakage detection apparatus and heat exchanger leak hunting method |
-
2017
- 2017-07-14 CN CN201720859975.9U patent/CN207147719U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253843A (en) * | 2017-07-14 | 2019-01-22 | 新能能源有限公司 | A kind of heat exchanger auxiliary leakage detection apparatus and heat exchanger leak hunting method |
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