CN218155718U - Screwed pipe for plate heat exchanger - Google Patents

Screwed pipe for plate heat exchanger Download PDF

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Publication number
CN218155718U
CN218155718U CN202222459917.0U CN202222459917U CN218155718U CN 218155718 U CN218155718 U CN 218155718U CN 202222459917 U CN202222459917 U CN 202222459917U CN 218155718 U CN218155718 U CN 218155718U
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China
Prior art keywords
heat exchanger
plate heat
connecting pipe
pipe part
middle flange
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Active
Application number
CN202222459917.0U
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Chinese (zh)
Inventor
郑伟杰
戚邗云
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Weal Yield Jiangsu Heat Exchanger Co ltd
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Weal Yield Jiangsu Heat Exchanger Co ltd
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Priority to CN202222459917.0U priority Critical patent/CN218155718U/en
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Publication of CN218155718U publication Critical patent/CN218155718U/en
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Abstract

The utility model discloses a screwed pipe for plate heat exchanger, include: the middle pipe body is provided with a through hole and comprises an upper connecting pipe part, a middle flange part and a lower pipe part, wherein the shaft diameter of the middle flange part is larger than that of the upper connecting pipe part, and the shaft diameter of the upper connecting pipe part is larger than that of the lower pipe part; the external thread part is annularly arranged on the outer wall of the upper connecting pipe part and is provided with a notch in the axial direction; the upper groove and the lower groove are annularly arranged on the middle flange part; and the sealing gaskets are embedded in the upper groove and the lower groove and protrude out of the upper surface of the middle flange part. The utility model discloses a with the screwed pipe segmentation design, lay the external screw thread portion that has the breach by last takeover portion, pressure in the appropriate release container when twisting the screw thread avoids the interior pressure of container to release suddenly, reduces the impact, and two groove installation seal ring of well flange portion cooperation in addition, the reinforcing is sealed.

Description

Screwed pipe for plate heat exchanger
Technical Field
The utility model belongs to the technical field of plate heat exchanger connects, specifically speaking relates to a screwed pipe for plate heat exchanger.
Background
The plate heat exchanger is a new type high-efficiency heat exchanger formed by stacking a series of metal sheets with certain corrugated shapes. Thin rectangular channels are formed between the various plates through which heat is exchanged. The plate heat exchanger is an ideal device for heat exchange of liquid-liquid and liquid-vapor. The heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, convenience in installation and cleaning, wide application, long service life and the like.
At present, a threaded pipe head needs to be installed on a plate heat exchanger, and when a threaded pipe joint is sealed by an end face, the threaded pipe head is not connected with the end of a thread, and the threaded pipe joint is integrally formed, so that certain impact can be generated by residual gas pressure at the moment of unscrewing the threaded joint, and the service life and the sealing property of subsequent use are influenced.
Therefore, a novel threaded pipe structure which can solve the problem that residual gas on a threaded interface of a plate heat exchanger cannot flow out quickly when the end face is sealed is urgently needed.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to solve the technical problem that a screwed pipe for plate heat exchanger is provided for avoid in the past the unable quick outflow of residual gas when end face seal of the hickey on the plate heat exchanger, cause the internal pressure to strike, and influence the problem of leakproofness.
In order to solve the technical problem, the utility model discloses a screwed pipe for plate heat exchanger, include: the middle pipe body is provided with a through hole and comprises an upper connecting pipe part, a middle flange part and a lower pipe part, wherein the shaft diameter of the middle flange part is greater than that of the upper connecting pipe part, and the shaft diameter of the upper connecting pipe part is greater than that of the lower pipe part;
the external thread part is annularly arranged on the outer wall of the upper connecting pipe part and is provided with a notch in the axial direction;
the upper groove and the lower groove are annularly arranged on the middle flange part;
and the sealing gaskets are embedded in the upper groove and the lower groove and protrude out of the upper surface of the middle flange part.
According to an embodiment of the present invention, the gap is divided into 4 equally along the radial direction, and the width is 4-6mm.
According to an embodiment of the present invention, the shaft diameter of the middle flange portion is not smaller than the outer diameter of the outer thread portion.
According to the utility model discloses an embodiment, wherein above-mentioned seal ring upper end is pressed and is supported middle flange portion upper surface, and presses and support the width and be 3mm at least.
According to an embodiment of the present invention, the notch is located at the upper and lower ends of the external thread portion and has an outward slope.
Compared with the prior art, the utility model discloses can obtain including following technological effect:
the threaded pipe is designed in sections, the external thread part with the notch is distributed on the upper connecting pipe part, the pressure in the container is properly released when the thread is screwed, the pressure in the container is prevented from being suddenly released, the impact is reduced, and in addition, the middle flange part is matched with the two grooves to install the sealing gaskets, so the sealing is enhanced.
Of course, it is not necessary for any product to achieve all of the above-described technical effects simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a perspective view of a threaded pipe for a plate heat exchanger according to an embodiment of the present invention;
fig. 2 is a side view of a threaded tube for a plate heat exchanger in accordance with an embodiment of the present invention;
fig. 3 is a cross-sectional view of a middle tube according to an embodiment of the present invention.
Reference numerals
The pipe comprises a middle pipe body 10, a through hole 11, an upper connecting pipe part 20, a middle flange part 30, a lower pipe part 40, an external thread part 50, a notch 51, an upper groove 61, a lower groove 62 and a sealing gasket 70.
Detailed Description
The following detailed description will be made with reference to the accompanying drawings and examples, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Referring to fig. 1 to 3 together, fig. 1 is a perspective view of a threaded pipe for a plate heat exchanger according to an embodiment of the present invention; fig. 2 is a side view of a threaded pipe for a plate heat exchanger according to an embodiment of the present invention; fig. 3 is a cross-sectional view of an intermediate pipe body according to an embodiment of the present invention.
As shown, a threaded tube for a plate heat exchanger comprises: the middle pipe body 10 is provided with a through hole 11, the middle pipe body 10 comprises an upper connecting pipe part 20, a middle flange part 30 and a lower pipe part 40, wherein the shaft diameter of the middle flange part 30 is larger than that of the upper connecting pipe part 20, and the shaft diameter of the upper connecting pipe part 20 is larger than that of the lower pipe part 40; an external thread part 50 annularly arranged on the outer wall of the upper connecting pipe part 20, wherein the external thread part 50 is provided with a notch 51 in the axial direction; an upper groove 61 and a lower groove 62 annularly arranged on the middle flange part 30; and a sealing gasket 70 embedded in the upper and lower grooves 61 and 62, the sealing gasket 70 protruding from the upper surface of the middle flange portion 30.
The utility model discloses an in the embodiment, middle body 10 sets up to the copper union, becomes the axle form that has the ladder, and wears to establish conducting hole 11 in the middle of, accomplishes the medium circulation. The middle tube body 10 is composed of an upper connection tube part 20, a middle flange part 30 and a lower guide tube part 40, wherein the upper connection tube part 20 is provided with an external thread part 50 which is used for connecting the connection tubes in a threaded butt joint mode to complete the circulation of media to the plate heat exchanger, the lower guide tube part 40 extends into the plate heat exchanger to be installed, the convex middle flange part 30 forms end face pressing, is welded with an outer end plate of the heat exchanger, and is installed to the plate heat exchanger in a joint shape finally.
Further, the external thread part 50 of the upper adapter part 20 is provided with an axial notch 51 to properly release the pressure in the container when screwing, thereby preventing the pressure in the container from suddenly releasing. When the threaded pipe on the existing plate heat exchanger adopts end face sealing, the thread has no notch, so that certain impact can be generated by residual gas pressure at the moment of unscrewing the threaded interface, and the use functionality and reliability are influenced.
In a preferred embodiment, the notches 51 are equally divided into 4 notches along the radial direction, are uniformly arranged, are distributed with pressure gas around, are safe and reliable, have the width of 4-6mm, and have strong applicability.
Further, in other embodiments, the notches 51 are located at both the upper and lower ends of the external thread portion 50 and are tapered outward, thereby providing a flow guide function and improving the rapidity of releasing the pressure gas.
In addition, the outer wall of the middle flange part 30 is also provided with an upper groove 61 and a lower groove 62 at intervals in the circumferential direction for embedding and installing a sealing gasket 70 to abut against the butted connecting pipe to form soft sealing, and the upper groove 61 and the lower groove 62 are matched in a double-point mode, so that the sealing gasket 70 is installed more stably.
In a preferred embodiment, the axial diameter of the middle flange 30 is not smaller than the outer diameter of the external thread portion 50, thereby facilitating abutment against the joint pipe. In addition, the upper end of the sealing washer 70 is pressed against the upper surface of the middle flange part 30, and can be fully contacted and matched with the adapter, so that the sealing performance is ensured. Furthermore, the pressing width is at least 3mm, the installation is stable, and the sealing performance is ensured.
To sum up, the utility model discloses a with the screwed pipe segmentation design, lay the external screw thread portion that has the breach by last takeover portion, pressure in the appropriate release container when twisting the screw thread avoids the pressure in the container to release suddenly, reduces the impact, and two groove erection seal ring of flange portion cooperation in addition, the reinforcing is sealed.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. A threaded tube for a plate heat exchanger, comprising:
the middle pipe body is provided with a through hole and comprises an upper connecting pipe part, a middle flange part and a lower pipe part, wherein the shaft diameter of the middle flange part is larger than that of the upper connecting pipe part, and the shaft diameter of the upper connecting pipe part is larger than that of the lower pipe part;
the external thread part is annularly arranged on the outer wall of the upper connecting pipe part, and a gap is axially formed in the external thread part;
the upper groove and the lower groove are annularly arranged on the middle flange part;
and the sealing gaskets are embedded in the upper groove and the lower groove and protrude out of the upper surface of the middle flange part.
2. The threaded tube for a plate heat exchanger according to claim 1, wherein the notches are equally divided into 4 in the radial direction and have a width of 4-6mm.
3. The threaded tube for a plate heat exchanger of claim 1, wherein the mid-flange axial diameter is not less than the external threaded portion outer diameter.
4. The threaded tube for a plate heat exchanger of claim 1, wherein the sealing gasket upper end is pressed against the middle flange portion upper surface and is pressed against a width of at least 3mm.
5. The threaded tube for a plate heat exchanger of claim 1, wherein the notch is tapered outwardly at both upper and lower ends of the external threaded portion.
CN202222459917.0U 2022-09-17 2022-09-17 Screwed pipe for plate heat exchanger Active CN218155718U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222459917.0U CN218155718U (en) 2022-09-17 2022-09-17 Screwed pipe for plate heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222459917.0U CN218155718U (en) 2022-09-17 2022-09-17 Screwed pipe for plate heat exchanger

Publications (1)

Publication Number Publication Date
CN218155718U true CN218155718U (en) 2022-12-27

Family

ID=84563304

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222459917.0U Active CN218155718U (en) 2022-09-17 2022-09-17 Screwed pipe for plate heat exchanger

Country Status (1)

Country Link
CN (1) CN218155718U (en)

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