CN210372520U - Sealing plug of heat exchange tube - Google Patents

Sealing plug of heat exchange tube Download PDF

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Publication number
CN210372520U
CN210372520U CN201921438017.XU CN201921438017U CN210372520U CN 210372520 U CN210372520 U CN 210372520U CN 201921438017 U CN201921438017 U CN 201921438017U CN 210372520 U CN210372520 U CN 210372520U
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CN
China
Prior art keywords
sleeve
heat exchange
exchange tube
bolt
sleeved
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.)
Active
Application number
CN201921438017.XU
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Chinese (zh)
Inventor
于磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zibo Hai Yi Fine Chemical Co Ltd
Original Assignee
Zibo Hai Yi Fine Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zibo Hai Yi Fine Chemical Co Ltd filed Critical Zibo Hai Yi Fine Chemical Co Ltd
Priority to CN201921438017.XU priority Critical patent/CN210372520U/en
Application granted granted Critical
Publication of CN210372520U publication Critical patent/CN210372520U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a heat exchange tube shutoff field especially relates to a heat exchange tube seals end cap. The utility model discloses a set up outer tube, endotheca spare and bolt, utilize the extrusion expansion principle, make outer tube and heat exchange tube inner wall closely laminate, this end cap shutoff is simple swift, need not the welding, and it is convenient to dismantle, convenient to overhaul. The utility model discloses a: the outer sleeve is sleeved with the inner wall of the heat exchange tube, annular bulges are uniformly distributed on the outer wall of the outer sleeve along the circumferential direction of the outer sleeve, and the inner wall of the outer sleeve is in a circular truncated cone shape; the inner sleeve is sleeved with the inner wall of the outer sleeve, the shape and the size of the inner sleeve are matched with the inner wall of the outer sleeve, and a threaded blind hole is formed at the necking end of the inner sleeve; one side of the support platform is fixedly connected with the outer sleeve; the bolt penetrates through the support platform and is connected with the threaded blind hole through threads.

Description

Sealing plug of heat exchange tube
Technical Field
The utility model relates to a heat exchange tube shutoff field especially relates to a heat exchange tube seals end cap.
Background
At present, the domestic heat exchange tube or pipeline plugging is usually performed by welding plugging, most plugs are made of round steel and machined into a conical shape, the outer diameter value of the small end of each plug is smaller than the inner diameter value of the heat exchange tube or pipeline, the outer diameter value of the large end of each plug is larger than the inner diameter value of the heat exchange tube or pipeline, and the plugs are embedded into the heat exchange tube or pipeline and then welded after being tightly crushed when in use; the welding plugging has many defects, on one hand, residual stress generated by welding can cause leakage of surrounding heat exchange tubes or damage of pipe line base materials; on the other hand, if flammable and explosive media are stored in the heat exchange tube or the pipeline, the heat exchange tube or the pipeline cannot be plugged by using the welding plugging mode.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heat exchange tube seals end cap, through setting up outer tube, endotheca spare, gasket and bolt, utilizes the extrusion expansion principle, makes outer tube and heat exchange tube inner wall closely laminate, and this end cap shutoff is simple swift, need not the welding, and it is convenient to dismantle, convenient to overhaul.
The sealed end cap of heat exchange tube include: the outer sleeve is sleeved with the inner wall of the heat exchange tube, annular bulges are uniformly distributed on the outer wall of the outer sleeve along the circumferential direction of the outer sleeve, and the inner wall of the outer sleeve is in a circular truncated cone shape; the inner sleeve is sleeved with the inner wall of the outer sleeve, the shape and the size of the inner sleeve are matched with the inner wall of the outer sleeve, and a threaded blind hole is formed at the necking end of the inner sleeve; one side of the support platform is fixedly connected with the outer sleeve; the bolt penetrates through the support platform and is connected with the threaded blind hole through threads.
The outer sleeve is in clearance fit with the heat exchange tube, and the inner diameter of the outer sleeve is in a circular truncated cone shape and is tightly attached to the inner sleeve. During installation, the necking end of the inner sleeve is inserted into the outer sleeve, the bolt penetrates through the support table and abuts against the inner sleeve, then the outer sleeve is placed into the heat exchange tube, the support table is held by hands or a clamp, the bolt is rotated to enable the inner sleeve to move towards the side of the support table, and the support table extrudes the outer sleeve to enable the annular bulge on the outer wall of the outer sleeve to abut against and abut against the inner wall of the heat exchange tube, so that a sealing effect is achieved; during maintenance, the bolt is screwed in the opposite direction, and the plug can be detached from the heat exchange tube, so that the maintenance is convenient.
The support platform is characterized by further comprising a gasket, and the gasket is sleeved on a bolt between the necking end of the inner sleeve and the support platform.
The cross section of the annular bulge is triangular.
The utility model has the advantages that: through setting up outer tube, endotheca spare and bolt, utilize the extrusion expansion principle, make outer tube and heat exchange tube inner wall closely laminate, this end cap shutoff is simple swift, need not the welding, and it is convenient to dismantle, convenient to overhaul.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
in the figure: 1. an outer sleeve; 2. a heat exchange pipe; 3. an annular projection; 4. an inner sleeve member; 5. a threaded blind hole; 6. a support table; 7. a bolt; 8. and (7) a gasket.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figure 1, the heat exchange tube sealing plug comprises: the heat exchanger comprises an outer sleeve 1, an inner sleeve 4, a supporting table 6, a bolt 7 and a gasket 8, wherein the outer sleeve 1 is sleeved with the inner wall of a heat exchange tube 2, annular bulges 3 are uniformly distributed on the outer wall of the outer sleeve along the circumferential direction of the outer sleeve, and the inner wall of the outer sleeve is in a circular truncated cone shape; the inner sleeve 4 is sleeved with the inner wall of the outer sleeve 1, the shape and the size of the inner sleeve 4 are matched with the inner wall of the outer sleeve, and a threaded blind hole 5 is formed at the necking end of the inner sleeve; one side of the support table 6 is fixedly connected with the outer sleeve 1; the bolt 7 penetrates through the support platform 6 and is in threaded connection with the threaded blind hole 5. And the gasket 8 is sleeved on the bolt 7 between the necking end of the inner sleeve and the support table 6. The cross section of the annular bulge 3 is triangular.
The outer sleeve 1 is in clearance fit with the heat exchange tube 2, and the inner diameter of the outer sleeve 1 is in a circular truncated cone shape and can be tightly attached to the inner sleeve 4. During installation, firstly, the necking end of the inner sleeve is inserted into the outer sleeve 1, the bolt 7 penetrates through the support table 6 and abuts against the threaded blind hole 5 of the inner sleeve, then the outer sleeve 1 is placed into the heat exchange tube 2, the support table is held by hands or a clamp, the bolt 7 is rotated, the inner sleeve 4 moves towards the support table 6, the support table 6 extrudes the outer sleeve 1, and the annular bulge 3 on the outer wall of the outer sleeve abuts against and is attached to the inner wall of the heat exchange tube 2, so that a sealing effect is achieved; during maintenance, the bolt 7 is screwed in the opposite direction, and the plug can be detached from the heat exchange tube 2, so that the maintenance is convenient.
The utility model discloses a use as follows: when the heat exchanger is installed, the outer sleeve sleeved with the inner sleeve is placed at the opening of the heat exchange tube, the support table is fixed, and then the bolt is rotated, so that the annular bulge on the outer wall of the outer sleeve is abutted against and tightly attached to the inner wall of the heat exchange tube, and a sealing effect is further achieved; during maintenance, the bolt 7 is screwed in the opposite direction, and the plug can be detached from the heat exchange tube 2, so that the maintenance is convenient.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.

Claims (3)

1. The utility model provides a heat exchange tube seals end cap which characterized in that includes:
the outer sleeve (1) is sleeved with the inner wall of the heat exchange tube (2), annular bulges (3) are uniformly distributed on the outer wall of the outer sleeve along the circumferential direction of the outer sleeve, and the inner wall of the outer sleeve is in a circular truncated cone shape;
the inner sleeve (4) is sleeved with the inner wall of the outer sleeve (1), the shape and the size of the inner sleeve (4) are matched with the inner wall of the outer sleeve, and a threaded blind hole (5) is formed at the necking end of the inner sleeve;
one side of the support table (6) is fixedly connected with the outer sleeve (1);
and the bolt (7) penetrates through the support platform (6) and is in threaded connection with the threaded blind hole (5).
2. The heat exchange tube sealing plug according to claim 1, wherein: the support device is characterized by further comprising a gasket (8), wherein the gasket (8) is sleeved on a bolt (7) between the necking end of the inner sleeve and the support platform (6).
3. The heat exchange tube sealing plug according to claim 2, wherein: the cross section of the annular bulge (3) is triangular.
CN201921438017.XU 2019-08-30 2019-08-30 Sealing plug of heat exchange tube Active CN210372520U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921438017.XU CN210372520U (en) 2019-08-30 2019-08-30 Sealing plug of heat exchange tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921438017.XU CN210372520U (en) 2019-08-30 2019-08-30 Sealing plug of heat exchange tube

Publications (1)

Publication Number Publication Date
CN210372520U true CN210372520U (en) 2020-04-21

Family

ID=70253603

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921438017.XU Active CN210372520U (en) 2019-08-30 2019-08-30 Sealing plug of heat exchange tube

Country Status (1)

Country Link
CN (1) CN210372520U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111490192A (en) * 2020-06-29 2020-08-04 江苏时代新能源科技有限公司 Sleeve assembly, cover plate assembly, battery and power utilization device
CN111922173A (en) * 2020-09-29 2020-11-13 浙大宁波理工学院 Multi-stage omega-shaped pipe fluctuation internal high-pressure forming process
CN111922174A (en) * 2020-10-16 2020-11-13 浙大宁波理工学院 Device for forming by high pressure in wave

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111490192A (en) * 2020-06-29 2020-08-04 江苏时代新能源科技有限公司 Sleeve assembly, cover plate assembly, battery and power utilization device
CN111922173A (en) * 2020-09-29 2020-11-13 浙大宁波理工学院 Multi-stage omega-shaped pipe fluctuation internal high-pressure forming process
CN111922174A (en) * 2020-10-16 2020-11-13 浙大宁波理工学院 Device for forming by high pressure in wave

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