CN104502027B - Pressure test device for heat exchange tubes - Google Patents
Pressure test device for heat exchange tubes Download PDFInfo
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- CN104502027B CN104502027B CN201410792225.5A CN201410792225A CN104502027B CN 104502027 B CN104502027 B CN 104502027B CN 201410792225 A CN201410792225 A CN 201410792225A CN 104502027 B CN104502027 B CN 104502027B
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- tube
- pressure head
- pressure
- heat exchanger
- exchanger tube
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Abstract
The invention discloses a kind of pressure test device for heat exchange tubes, including：One pressure head, in fixed frame, pressure head is provided with pressure testing interface tube and heat exchanger tube jack, and the jack is arranged on pressure head bottom, and the bottom of jack is one section of taper pore, and the caliber of the taper pore and pressure testing interface tube is communicated with pressure head；One driving equipment, its power take-off mechanism is connected with pressure head, and control pressure head does the straight reciprocating motion of above-below direction in framework；One hold-down mechanism, it is fixed on the chassis base immediately below pressure head, middle part is provided with the tube chamber of up/down perforation, the tube head for holding heat exchanger tube passes through, the axis of the tube chamber and the taper pore is on the same line, some clamping jaws are provided with lumen exit port periphery, the lateral surface of clamping jaw is provided with the inclined-plane met and wall is bored to taper pore.Present device is easy to operate, using taper hole and clamping jaw Automatic-clamping heat exchanger tube, without artificial unloading, welding, the operation for cutting pipe end, uses manpower and material resources sparingly, and significantly improves production efficiency.
Description
Technical field
The present invention relates to mechanical field, specially a kind of pressure test device for heat exchange tubes.
Background technology
For shell-and-tube exchanger, its heat exchanger tube has two kinds of U-tube and straight tube, according to code requirement, before assembly
Every heat exchanger tube need to be carried out being not less than 2 times of water pressure tests of pressure, tubing be checked either with or without seepage, for the pressure testing work of straight tube
Skill equips comparative maturity, and efficiency high.But the pressure test process equipment for U-tube is always a scabrous class of comparing
Topic.This U-tube will be unable to remedy Yi Dan the generation leakage when pressure test is carried out after being assembled into product, therefore this is one
Critical process.
The conventional pressure-measuring method of U-tube has two kinds, and a kind of is that one end of U-tube is welded with jam, other end welded bands
Threaded tubule carries out pressure testing, cuts separation after pressure testing again, this pressure-measuring method, more the operation of welding and cutting, wastes
Material, efficiency is very low.Another method need not be welded, U-tube two ends assemble pressure test clamp, this pressure test clamp be by
Fixture joint, locking nut, O-ring seal, cone seal cutting ferrule, taper fastener set are constituted, and concrete operations are by U-tube
Both ends fill in fixture, rotational lock nut, taper fastening cutting ferrule promotes cone seal cutting ferrule, O-ring seal is extruded, by U
Type pipe clamp is lived.This test method is, it is necessary to manually tighten locking nut, efficiency is not also high.
The content of the invention
Technical purpose of the invention is directed to that the prior art is defective and not enough, provides a kind of improved heat exchanger tube pressure testing
Device, improves operating efficiency.
To realize above-mentioned technical purpose, the technical scheme that the present invention is provided is：
A kind of pressure test device for heat exchange tubes, it is characterised in that including consisting of component：
One pressure head, in fixed frame, pressure head is provided with pressure testing interface tube and heat exchanger tube jack, and the heat exchanger tube is inserted
Hole is arranged on pressure head bottom, and the bottom of heat exchanger tube jack is one section of taper pore, be communicated with pressure head the taper pore and
The caliber of pressure testing interface tube；
One driving equipment, its power take-off mechanism is connected with pressure head, and control pressure head does above-below direction in fixed frame
Straight reciprocating motion；
One hold-down mechanism, is fixed on the chassis base immediately below pressure head, and middle part is provided with the tube chamber of up/down perforation, holds heat exchange
The tube head of pipe passes through, the axis of the tube chamber and the taper pore on the same line, if being provided with lumen exit port periphery
Dry clamping jaw, the lateral surface of clamping jaw is provided with the inclined-plane met and wall is bored to taper pore.
When exchange heat pipe carries out pressure testing, the pressure testing interface tube of pressure head is connected with extraneous pressure testing pumping system.By heat exchange tube
Head (end) is inserted in the jack of pressure head through the tube chamber in the middle part of fixed frame and hold-down mechanism clamping jaw, and heat exchanger tube is assigned into
Behind position, start driving equipment control pressure head and push, clamping jaw is adjacent under the extruding of jack cone wall with pipe wall of heat exchange pipe, tightly blocks
Heat exchanger tube, then can start pressure testing pumping system carries out pressure testing.
The term positions such as upper and lower, top specifically described herein, bottom are the relative reference of internals of the present invention, actually make
In, can be changed according to pressure testing device integral installation direction of the present invention.
Improvement further to above-mentioned technical proposal also includes：
The hold-down mechanism drives downwards grooving from tube chamber top surface, and the tube wall between adjacent cutback forms the clamping jaw.
The hold-down mechanism includes the compressed part of integrally connected, pedestal and connecting portion from top to bottom, and the tube chamber runs through
Compressed part, pedestal and connecting portion.The compressed part outer wall for setting the clamping jaw is tapered, and chassis base is provided with installation screw,
Connecting portion is tightened on chassis base by screw thread；The diameter or width of the pedestal is more than the major diameter of thread of connecting portion,
After screwing in place, pedestal lower section terrace is pressed in the plate face of chassis base.
Preferably, the driving equipment can use cylinder.
The heat exchanger tube jack also include one section be located at taper pore top straight type pipeline section, the straight type pipeline section diameter with
Taper pore upper hole footpath diameter is identical, and the top of the straight type pipeline section is connected by one section of caliber with pressure testing interface tube, the section
The diameter of caliber is not more than the internal diameter of the heat exchanger tube, and straight type pipeline section top is provided with seal washer.
Beneficial effects of the present invention:
Equipment operation is easy, easily manufactures, and without artificial unloading's joint or welding, the operation of cutting pipe end, saves
Manpower, reduces supplies consumption, significantly improves production efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of prior art；
Fig. 2 is cross-sectional view of the invention；
Fig. 3 is dimensional structure diagram of the invention.
In upper figure, 1- fixed frames, 2- hold-down mechanisms, 3- top boards, 4- chassis bases, 5- pressure heads, 6- heat exchanger tubes, 7- gas
Cylinder, 8- bolts, 9- heat exchanger tube jacks, 10- screws, 11- calibers, 12- seal washers, 13- pressure testing interface tubes.
Specific embodiment
In order to illustrate architectural feature of the invention and technique effect, the present invention is done with specific embodiment below in conjunction with the accompanying drawings
It is further to introduce.
As shown in Figure 1 and Figure 2, a kind of pressure test device for heat exchange tubes, including consisting of component：
1）Pressure head 5；
The pressure head 5 is arranged in fixed frame 1, and the side of pressure head 5 is provided with the examination for being connected with extraneous pressure testing pumping system
Pressure pipe interface 13, pressure head bottom is provided with heat exchanger tube jack 9.The fixed frame 1 is passed through by top board 3, chassis base 4 and biside plate
Screw 10 is fixedly connected composition.
The heat exchanger tube jack 9 includes one section of taper pore (being specifically frustum type) and one section of straight type pipeline section.It is described
Straight type pipeline section is located at the top of taper pore, and its diameter is identical with taper pore upper hole footpath, and the top of the straight type pipeline section leads to
Cross one section of caliber 11 to be connected with pressure testing interface tube 13, this section of diameter of caliber 11 is interior less than the straight type pipeline section and heat exchanger tube 6
Footpath, straight type pipeline section top is provided with seal washer 12.
2）Driving equipment；
By taking cylinder as an example, cylinder 7 is fixed on the top board 3 of fixed frame 1 by connecting elements such as mounting seat, bolts 8, cylinder
Piston rod external part is provided with screw thread, and the top of pressure head 5 is provided with corresponding screw, and piston rod connects through the through hole on top board 3 with pressure head 5
Connect, control pressure head 5 does the straight reciprocating motion of above-below direction in fixed frame 1.
3）Hold-down mechanism 2；
The hold-down mechanism 2 is fixed on the chassis base 4 immediately below pressure head 5, and middle part is provided with the tube chamber of up/down perforation, is held
The tube head of heat exchanger tube 6 passes through.The axis of the tube chamber and the taper pore is on the same line.As shown in Fig. 2 the pressure
Tight mechanism 2 includes integrally formed compressed part 2-1, pedestal 2-2 and connecting portion 2-3 from top to bottom, and the tube chamber is then through pressure
Tight portion 2-1, pedestal 2-2 and connecting portion 2-3.
The outer wall of the compressed part 2-1 is tapered, and some groovings long, the pipe between adjacent cutback are driven downwards from tube chamber top surface
Wall is to form the clamping jaw.Chassis base 4 is provided with the screw for installing hold-down mechanism, and connecting portion 2-3 is tightened solid by screw thread
It is scheduled on chassis base 4.The major diameter of thread with diameter greater than connecting portion 2-3 of the pedestal 2-2, after screwing in place, under pedestal 2-2
Square terrace is pressed in the plate face of chassis base 4.
In above structure, the straight type pipeline section of the heat exchanger tube jack 9 and the lumen diameter size of hold-down mechanism 2 are exchanging heat
Pipe is just inserted as excellent.
During concrete operations, by the tube head of U heat exchange through the clamping jaw of hold-down mechanism 2, the heat exchanger tube jack 9 of pressure head is filled in
It is interior, until withstanding seal washer 12.Start cylinder reversing switch, cylinder piston moves immediately, band dynamic head 5 is pushed, using changing
The conical surface of heat pipe jack 9, draws the claw of hold-down mechanism 2 in, tightly blocks heat exchanger tube, is then connect by the pressure testing pipe on pressure head 5
Mouth 13 is connected with pressure testing pump conduit and carries out pressure testing.Pressure testing device of the present invention is equally applicable to straight type pipe, and staff is available
Many pressure testing devices carry out batch pressure testing, significantly improve operating efficiency.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible.The present invention
Claimed scope is by appending claims, specification and its equivalent thereof.
Claims (4)
1. a kind of pressure test device for heat exchange tubes, it is characterised in that including consisting of component：
One pressure head（5）, installed in fixed frame（1）It is interior, pressure head（5）It is provided with pressure testing interface tube（13）With heat exchanger tube jack（9）,
The heat exchanger tube jack（9）It is arranged on pressure head bottom, heat exchanger tube jack（9）Bottom be one section of taper pore, pressure head（5）Inside set
There are the connection taper pore and pressure testing interface tube（13）Caliber；
One driving equipment, its power take-off mechanism and pressure head（5）Connection, controls pressure head（5）In fixed frame（1）Inside do upper and lower
To straight reciprocating motion；
One hold-down mechanism（2）, it is fixed on pressure head（5）The chassis base of underface（4）On, middle part is provided with the tube chamber of up/down perforation,
Hold heat exchanger tube（6）Tube head pass through, the axis of the tube chamber and the taper pore on the same line, lumen exit port periphery
Place is provided with some clamping jaws, and the lateral surface of clamping jaw is provided with the inclined-plane met and wall is bored to taper pore;
The heat exchanger tube jack（9）Also include one section be located at taper pore top straight type pipeline section, the straight type pipeline section diameter with
Taper pore upper opening diameter is identical, and the top of the straight type pipeline section passes through one section of caliber（11）With pressure testing interface tube（13）Even
Connect, this section of caliber（11）Diameter be not more than heat exchanger tube（6）Internal diameter, straight type pipeline section top is provided with seal washer（12）.
2. a kind of pressure test device for heat exchange tubes according to claim 1, it is characterised in that：
The hold-down mechanism（2）Grooving is driven downwards from tube chamber top surface, and the tube wall between adjacent cutback forms the clamping jaw.
3. a kind of pressure test device for heat exchange tubes according to claim 2, it is characterised in that：
The hold-down mechanism（2）Compressed part including integrally connected from top to bottom（2-1）, pedestal（2-2）And connecting portion（2-
3）, the tube chamber is through compressed part（2-1）, pedestal（2-2）And connecting portion（2-3）；
The compressed part of the clamping jaw is set（2-1）Outer wall is tapered；Chassis base（4）It is provided with installation screw, connecting portion（2-3）
Chassis base is tightened to by screw thread（4）On；The pedestal（2-2）Diameter or width be more than connecting portion（2-3）Spiral shell
Line external diameter, after screwing in place, pedestal（2-2）Bottom terrace is pressed in chassis base（4）Plate face on.
4. a kind of pressure test device for heat exchange tubes according to claim 1, it is characterised in that：
The driving equipment is cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792225.5A CN104502027B (en) | 2014-12-19 | 2014-12-19 | Pressure test device for heat exchange tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792225.5A CN104502027B (en) | 2014-12-19 | 2014-12-19 | Pressure test device for heat exchange tubes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104502027A CN104502027A (en) | 2015-04-08 |
| CN104502027B true CN104502027B (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410792225.5A Active CN104502027B (en) | 2014-12-19 | 2014-12-19 | Pressure test device for heat exchange tubes |
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| CN (1) | CN104502027B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6778660B2 (en) * | 2017-07-03 | 2020-11-04 | 株式会社スギノマシン | Outer clamp type high pressure seal jig |
| CN111398046B (en) * | 2020-04-30 | 2022-09-02 | 宝鸡欧亚化工设备制造厂 | Detection fixing device and fixing method for heat exchange tube of U-shaped tube heat exchanger |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204314018U (en) * | 2014-12-19 | 2015-05-06 | 南通中船机械制造有限公司 | Pressure test device for heat exchange tubes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202101819U (en) * | 2011-06-21 | 2012-01-04 | 无锡市华尔泰机械制造有限公司 | Float head heat-exchanger pressure test tool |
| EP2847514B1 (en) * | 2012-01-31 | 2022-10-26 | Clean Thermodynamic Energy Conversion Ltd | Steam generation |
| CN203717907U (en) * | 2013-12-20 | 2014-07-16 | 浙江吉利控股集团有限公司 | Inner hole plugging device for leakage testing |
| CN203772491U (en) * | 2014-02-28 | 2014-08-13 | 江阴金童石化装备有限公司 | Pressure test tool for heat exchanger |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204314018U (en) * | 2014-12-19 | 2015-05-06 | 南通中船机械制造有限公司 | Pressure test device for heat exchange tubes |
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| CN104502027A (en) | 2015-04-08 |
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