CN204314018U - Pressure test device for heat exchange tubes - Google Patents
Pressure test device for heat exchange tubes Download PDFInfo
- Publication number
- CN204314018U CN204314018U CN201420808846.3U CN201420808846U CN204314018U CN 204314018 U CN204314018 U CN 204314018U CN 201420808846 U CN201420808846 U CN 201420808846U CN 204314018 U CN204314018 U CN 204314018U
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- CN
- China
- Prior art keywords
- tube
- pressure head
- pressure
- heat exchanger
- jack
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- 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.)
- Withdrawn - After Issue
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of pressure test device for heat exchange tubes, comprise: a pressure head, be arranged in fixed frame, pressure head is provided with pressure testing interface tube and heat exchanger tube jack, described jack is arranged on bottom pressure head, the bottom of jack is one section of taper pore, is provided with the caliber being communicated with described taper pore and pressure testing interface tube in pressure head; One driving arrangement, its power take-off mechanism is connected with pressure head, controls the straight reciprocating motion that pressure head does above-below direction in framework; One hold-down mechanism, be fixed on the chassis base immediately below pressure head, middle part is provided with the tube chamber of up/down perforation, the tube head holding heat exchanger tube passes through, the axis of described tube chamber and described taper pore on the same line, the peripheral place of lumen exit port is provided with some jaws, and the lateral surface of jaw is provided with the inclined-plane of meeting to taper pore cone wall.The utility model equipment operating is easy, utilizes taper hole and jaw Automatic-clamping heat exchanger tube, without the need to the operation of artificial unloading, welding, cutting pipe end, uses manpower and material resources sparingly, significantly improve production efficiency.
Description
Technical field
The present invention relates to mechanical field, be specially a kind of pressure test device for heat exchange tubes.
Background technology
For shell-and-tube exchanger, its heat exchanger tube has U-tube and straight tube two kinds, according to code requirement, need the hydraulic testing every root heat exchanger tube being not less than to 2 times of pressure before assembly, check whether tubing has seepage, for the pressure test process equipment comparative maturity of straight tube, and efficiency is high.But be a more scabrous problem for the pressure test process equipment of U-tube always.This U-tube cannot be remedied once carry out pressure test generation leakage after being assembled into product, and therefore this is a critical process.
The pressure-measuring method of U-tube routine has two kinds, and a kind of is be welded by one end jam of U-tube, and the threaded tubule of other end welded bands carries out pressure testing, cutting and separating again after pressure testing, this pressure-measuring method, and many operations of welding and cutting, waste material, efficiency is very low.Another kind method does not need welding, in the two ends of U-tube assembling pressure test clamp, this pressure test clamp is made up of jig joint, set nut, O RunddichtringO, cone seal cutting ferrule, the fastening cutting ferrule of taper, concrete operations are that jig is filled at the both ends of U-tube, rotational lock nut, the fastening cutting ferrule of taper promotes cone seal cutting ferrule, and extruding O RunddichtringO, blocks U-tube.This test method, needs manually to tighten set nut, and efficiency is not high yet.
Summary of the invention
Technical purpose of the present invention is for prior art existing defects and deficiency, provides a kind of pressure test device for heat exchange tubes of improvement, increases work efficiency.
For realizing above-mentioned technical purpose, technical scheme provided by the invention is:
A kind of pressure test device for heat exchange tubes, is characterized in that, comprise following composition component:
One pressure head, is arranged in fixed frame, and pressure head is provided with pressure testing interface tube and heat exchanger tube jack, and the bottom of described heat exchanger tube jack is one section of taper pore, is provided with the caliber being communicated with described taper pore and pressure testing interface tube in pressure head;
One driving arrangement, its power take-off mechanism is connected with pressure head, controls the straight reciprocating motion that pressure head does above-below direction in framework;
One hold-down mechanism, be fixed on the chassis base immediately below pressure head, middle part is provided with the tube chamber of up/down perforation, the tube head holding heat exchanger tube passes through, the axis of described tube chamber and described taper pore on the same line, the peripheral place of lumen exit port is provided with some jaws, and the lateral surface of jaw is provided with the inclined-plane of meeting to taper pore cone wall.
When exchange heat pipe carries out pressure testing, the pressure testing interface tube of pressure head is connected with extraneous test pump system.By heat exchange pipe head (end) through the tube chamber in the middle part of fixed frame and hold-down mechanism jaw, and insert in the jack of pressure head, after heat exchanger tube is assigned and is put in place, start driving arrangement control pressure head to press down, jaw is adjacent to pipe wall of heat exchange pipe under the extruding of jack cone wall, tightly block heat exchanger tube, then can start test pump system and carry out pressure testing.
The term position such as described upper and lower, top, the end is the relative reference of internals of the present invention herein, in actual use, can change according to pressure testing device integral installation direction of the present invention.
Technique scheme is further improved and also comprises:
Described hold-down mechanism drives grooving downwards from tube chamber end face, and the tube wall between adjacent cutback forms described jaw.
Described hold-down mechanism comprises compressed part, pedestal and the connecting portion that one from top to bottom connects, and described tube chamber runs through compressed part, pedestal and connecting portion.The compressed part outer wall arranging described jaw is tapered, and chassis base is provided with installation screw, and connecting portion is fixed on chassis base by screwed tight; The diameter of described pedestal or width are greater than the major diameter of thread of connecting portion, screw after putting in place, and below pedestal, terrace is pressed on the plate face of chassis base.
As preferably, described driving arrangement can adopt cylinder.
Described heat exchanger tube jack also comprises the straight type pipeline section that a section is positioned at taper pore top, described straight type pipeline section diameter is identical with taper pore upper hole footpath diameter, the top of described straight type pipeline section is connected with pressure testing interface tube by one section of caliber, the diameter of this section of caliber is not more than the internal diameter of described heat exchanger tube, and straight type pipeline section top is provided with packing washer.
Beneficial effect of the present invention:
Equipment operating is easy, easily manufactures, and without the need to the operation of artificial unloading's joint or welding, cutting pipe end, saves manpower, reduces supplies consumption, significantly improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is cross-sectional view of the present invention;
Fig. 3 is perspective view of the present invention.
In upper figure, 1-framework, 2-hold-down mechanism, 3-top board, 4-base plate, 5-pressure head, 6-heat exchanger tube, 7-cylinder, 8-bolt, 9-taper pore, 10-screw, 11-caliber, 12-packing washer, 13-pressure testing interface tube.
Embodiment
In order to illustrate architectural feature of the present invention and technique effect, below in conjunction with accompanying drawing and specific embodiment, the present invention is described further.
As shown in Figure 1 and Figure 2, a kind of pressure test device for heat exchange tubes, comprises following composition component:
1) pressure head 5;
Described pressure head 5 is arranged in fixed frame 1, and pressure head 5 side is provided with the pressure testing interface tube 13 for being connected with extraneous test pump system, is provided with heat exchanger tube jack 9 bottom pressure head.Described fixed frame 1 to be fixedly connected with by screw 10 by top board 3, base plate 4 and biside plate and to form.
Described jack 9 comprises one section of taper pore (being frustum type specifically) and one section of straight type pipeline section.Described straight type pipeline section is positioned at the top of taper pore, its diameter is identical with taper pore upper hole footpath, the top of described straight type pipeline section is connected with pressure testing interface tube 13 by one section of caliber 11, the diameter of this section of caliber 11 is less than the internal diameter of described straight type pipeline section and heat exchanger tube 6, and straight type pipeline section top is provided with packing washer 12.
2) driving arrangement;
For cylinder, cylinder 7 is fixed on framework 1 top board 3 by connecting elements such as mount pad, bolts 8, cylinder piston rod external part is provided with screw thread, pressure head 5 top is provided with corresponding screw, piston rod is connected with pressure head 5 through the through hole on top board 3, controls the straight reciprocating motion that pressure head 5 does above-below direction in framework 1.
3) hold-down mechanism 2;
Described 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, and the tube head holding heat exchanger tube 6 passes through.The axis of described tube chamber and described taper pore on the same line.As shown in Figure 2, described hold-down mechanism 2 comprises integrated compressed part 2-1, pedestal 2-2 and connecting portion 2-3 from top to bottom, and described tube chamber then runs through compressed part 2-1, pedestal 2-2 and connecting portion 2-3.
The outer wall of described compressed part 2-1 is tapered, and drive some long groovings downwards from tube chamber end face, namely the tube wall between adjacent cutback defines described jaw.Chassis base 4 is provided with the screw installing hold-down mechanism, and connecting portion 2-3 is fixed on base plate 4 by screwed tight.The diameter of described pedestal 2-2 is greater than the major diameter of thread of connecting portion 2-3, screws after putting in place, and below pedestal 2-2, terrace is pressed on the plate face of base plate 4.
In above structure, the straight type pipeline section of described heat exchanger tube jack 9 and the lumen diameter size of hold-down mechanism 2 are just inserted as excellent with heat exchanger tube.
During concrete operations, by the jaw of the tube head of U heat exchange through hold-down mechanism 2, fill in pressure head jack 9, until withstand packing washer 12.Start cylinder reversing switch, cylinder piston moves immediately, and band dynamic head 5 presses down, and utilizes the conical surface of jack 9, hold-down mechanism 2 claw is drawn in, tightly blocks heat exchanger tube, to be then connected with test pump pipeline by the pressure testing interface tube 13 on pressure head 5 and to carry out pressure testing.Pressure testing device of the present invention is equally applicable to straight type pipe, and staff can utilize multiple stage pressure testing device to carry out batch pressure testing, significantly improves work efficiency.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand, the present invention is not restricted to the described embodiments, what describe in above-described embodiment and instructions just illustrates principle of the present invention, and without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications.Application claims protection domain is defined by appending claims, instructions and equivalent thereof.
Claims (5)
1. a pressure test device for heat exchange tubes, is characterized in that, comprises following composition component:
One pressure head (5), be arranged in fixed frame (1), pressure head (5) is provided with pressure testing interface tube (13) and heat exchanger tube jack (9), described jack (9) is arranged on bottom pressure head, the bottom of jack (9) is one section of taper pore, is provided with the caliber being communicated with described taper pore and pressure testing interface tube (13) in pressure head (5);
One driving arrangement, its power take-off mechanism is connected with pressure head (5), controls the straight reciprocating motion that pressure head (5) does above-below direction in framework (1);
One hold-down mechanism (2), be fixed on the chassis base (4) immediately below pressure head (5), middle part is provided with the tube chamber of up/down perforation, the tube head holding heat exchanger tube (6) passes through, the axis of described tube chamber and described taper pore on the same line, the peripheral place of lumen exit port is provided with some jaws, and the lateral surface of jaw is provided with the inclined-plane of meeting to taper pore cone wall.
2. a kind of pressure test device for heat exchange tubes according to claim 1, is characterized in that:
Described hold-down mechanism (2) drives grooving downwards from tube chamber end face, and the tube wall between adjacent cutback forms described jaw.
3. a kind of pressure test device for heat exchange tubes according to claim 2, is characterized in that:
Described hold-down mechanism (2) comprises compressed part (2-1), pedestal (2-1) and the connecting portion (2-3) that one from top to bottom connects, and described tube chamber runs through compressed part (2-1), pedestal (2-2) and connecting portion (2-3);
Compressed part (2-1) outer wall arranging described jaw is tapered; Chassis base (4) is provided with installation screw, and connecting portion (2-3) is fixed on chassis base (4) by screwed tight; The diameter of described pedestal (2-2) or width are greater than the major diameter of thread of connecting portion (2-3), screw after putting in place, and pedestal (2-2) bottom terrace is pressed on the plate face of chassis base (4).
4. a kind of pressure test device for heat exchange tubes according to claim 1, is characterized in that:
Described driving arrangement is cylinder.
5. a kind of pressure test device for heat exchange tubes according to claim arbitrary in claim 1-4, is characterized in that:
Described heat exchanger tube jack (9) also comprises the straight type pipeline section that a section is positioned at taper pore top, described straight type pipeline section diameter is identical with taper pore upper opening diameter, the top of described straight type pipeline section is connected with pressure testing interface tube (13) by one section of caliber (11), the diameter of this section of caliber (11) is not more than the internal diameter of heat exchanger tube (6), and straight type pipeline section top is provided with packing washer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420808846.3U CN204314018U (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 |
|---|---|---|---|
| CN201420808846.3U CN204314018U (en) | 2014-12-19 | 2014-12-19 | Pressure test device for heat exchange tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204314018U true CN204314018U (en) | 2015-05-06 |
Family
ID=53136325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420808846.3U Withdrawn - After Issue CN204314018U (en) | 2014-12-19 | 2014-12-19 | Pressure test device for heat exchange tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204314018U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502027A (en) * | 2014-12-19 | 2015-04-08 | 南通中船机械制造有限公司 | Pressure testing equipment for heat exchange tube |
| CN109163850A (en) * | 2018-09-21 | 2019-01-08 | 江苏金门能源装备有限公司 | A kind of heat exchange pipe head pressure testing device and its pressure-measuring method |
-
2014
- 2014-12-19 CN CN201420808846.3U patent/CN204314018U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502027A (en) * | 2014-12-19 | 2015-04-08 | 南通中船机械制造有限公司 | Pressure testing equipment for heat exchange tube |
| CN104502027B (en) * | 2014-12-19 | 2017-06-06 | 南通中船机械制造有限公司 | Pressure test device for heat exchange tubes |
| CN109163850A (en) * | 2018-09-21 | 2019-01-08 | 江苏金门能源装备有限公司 | A kind of heat exchange pipe head pressure testing device and its pressure-measuring method |
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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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150506 Effective date of abandoning: 20170606 |