CN212691722U - Stainless steel seamless pipe for boiler - Google Patents
Stainless steel seamless pipe for boiler Download PDFInfo
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- CN212691722U CN212691722U CN202020670861.1U CN202020670861U CN212691722U CN 212691722 U CN212691722 U CN 212691722U CN 202020670861 U CN202020670861 U CN 202020670861U CN 212691722 U CN212691722 U CN 212691722U
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- boiling water
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Abstract
The utility model discloses a stainless steel seamless pipe for boiler, which comprises a main pipe and a boiling water pipe connected in the main pipe, wherein a ceramic bush is arranged in the main pipe, both ends of the main pipe are respectively provided with a ceramic joint, the lower end of the ceramic joint is provided with an internal thread sleeve, the inner side of the internal thread sleeve is provided with a convex ring, the distance is kept between the internal thread sleeve and the convex ring, both ends of the main pipe are provided with external threads, two ceramic joints are respectively screwed on both ends of the main pipe, both ends of the main pipe and the ceramic bush are respectively inserted between the internal thread sleeve and the convex ring, the boiling water pipe positioned in the main pipe extends downwards to the lower end of the main pipe through an elbow, the ceramic joint at the lower end of the main pipe is provided with a step, a filter screen is fixed on the step, the middle part of the filter screen is also provided with four holes corresponding to the boiling water pipe, positioning rings, the utility model discloses it is corrosion-resistant, still can improve the steam production efficiency of boiler.
Description
Technical Field
The utility model relates to a stainless steel seamless pipe for boiler especially relates to a stainless steel seamless steel pipe that transport boiler steam was used.
Background
The inner wall of the stainless steel seamless pipe for the boiler, especially the stainless steel seamless pipe for conveying the steam of the boiler is very easy to corrode because the stainless steel seamless pipe is in a high-temperature and high-humidity environment for a long time; at present, a steel pipe with a built-in coating is generally adopted for protection, but the coating on the inner wall is difficult to be uniformly coated on one hand, and on the other hand, the coating is high in damage speed under a high-temperature and high-humidity environment, and the service life is not ideal enough; finally, the ends of the steel pipes, i.e. the joints of the steel pipes, cannot be effectively protected by means of the coating alone.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a stainless steel seamless pipe for a boiler.
The technical scheme of the utility model is that: a stainless steel seamless pipe for a boiler comprises a main pipe and a boiling water pipe connected in the main pipe, wherein a ceramic bushing is arranged in the main pipe, ceramic joints are respectively arranged at two ends of the main pipe, an internal thread sleeve is arranged at the lower end of each ceramic joint, a convex ring is arranged on the inner side of each internal thread sleeve, an interval is kept between each internal thread sleeve and the corresponding convex ring, external threads are arranged at two ends of the main pipe, the two ceramic joints are respectively screwed at two ends of the main pipe, the two end parts of the main pipe and the ceramic bushing are respectively inserted between the internal thread sleeves and the corresponding convex rings, the boiling water pipe positioned in the main pipe extends downwards from the lower end of the main pipe through an elbow, a step is arranged on the ceramic joint at the lower end of the main pipe, a filter screen is fixed on the step, four holes corresponding to the boiling water pipe are also arranged in the middle part of a filter screen frame of, and each boiling water pipe penetrates through the corresponding positioning ring and then enters the boiler.
Specifically, the main pipe is a stainless steel seamless pipe, and the boiling water pipe is a PPR pipe.
Preferably, the distance is the sum of the wall thicknesses of the main tube and the ceramic bushing.
Furthermore, a sealing gasket is arranged between the main pipe and the lower end of the ceramic joint and between the ceramic lining and the lower end of the ceramic joint.
Furthermore, a plurality of connecting holes are further arrayed on the upper end of the main pipe, a two-way piece is fixed on each connecting hole, each two-way piece is composed of an outer shell and a metal lining, two ends of each two-way piece are fixed on the main pipe through flanges, and the boiling water pipe is connected with the main pipe through the two-way piece.
Furthermore, the joint of the flange and the main pipe is also provided with a seal.
Furthermore, the lower end of the screen frame of the screen is provided with a circle of gaskets.
The utility model has the advantages that: the utility model has the advantages that the protection design is relatively comprehensive for the main pipe, so that the superheated steam can not directly contact the main pipe made of stainless steel, the main pipe is not easy to be corroded, and the ceramic lining also has a certain heat preservation effect; the boiling water pipe is arranged in the main pipe, and the boiling water in the boiling water pipe can be directly insulated and preheated when the superheated steam is discharged out of the boiler, so that the steam generation efficiency can be effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the filter screen of the present invention.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
As shown in fig. 1, the stainless steel seamless tube for the boiler comprises a main tube 1 and a boiling water tube 2 connected in the main tube 1, wherein the main tube 1 is the stainless steel seamless tube, and the boiling water tube 2 is a PPR tube;
the ceramic bushing is characterized in that a ceramic bushing 3 is arranged in the main pipe 1, two ends of the main pipe 1 are respectively provided with a ceramic joint 4, the lower end of each ceramic joint 4 is provided with an internal thread sleeve 5, the inner side of each internal thread sleeve 5 is provided with a convex ring 6, a distance is kept between each internal thread sleeve 5 and each convex ring 6, the distance is the sum of the wall thicknesses of the main pipe 1 and the ceramic bushing 3, two ends of the main pipe 1 are provided with external threads, the two ceramic joints 4 are respectively screwed at two ends of the main pipe 1, two end parts of the main pipe 1 and the ceramic bushing 3 are respectively inserted between the internal thread sleeves 5 and the convex rings 6, and a sealing gasket 7 is further arranged between the main pipe 1 and the lower ends of the;
through the design of the structure, the part of the utility model contacted with the superheated steam is made of corrosion-resistant ceramic material, which can effectively prevent the corrosion of the superheated steam to the main pipe 1 and has better heat preservation effect, in addition, the utility model also designs a protection structure aiming at the two ends of the main pipe 1 to prevent the end part of the main pipe 1 which is not easy to be protected from being corroded;
four connecting holes are further arrayed at the upper end (outlet end) of the main pipe 1, a two-way part 8 is fixed on each connecting hole, each two-way part 8 consists of a shell and a metal lining, two ends of each two-way part 8 are fixed on the main pipe 1 through flanges 9, the shell and the flanges 9 are both made of PPR materials and can resist high-temperature corrosion, and a seal is further arranged at the connecting part of the flanges 9 and the main pipe 1 to prevent steam from leaking from the connecting part; the boiling water pipe 2 is connected with the main pipe 1 through the two-way piece 8, the boiling water pipe 2 in the main pipe 1 extends downwards through an elbow to form the lower end of the main pipe 1, a step 10 is arranged on the ceramic joint 4 at the lower end of the main pipe 1, a filter screen 11 is fixed on the step 10, as shown in fig. 2, a circle of gasket 12 is arranged at the lower end of a filter screen frame 13 of the filter screen 11, the filter screen frame 13 can be tightly pressed when the ceramic joint 4 is connected with a boiler, meanwhile, the gasket 12 has a sealing effect, four holes corresponding to the boiling water pipe 2 are further formed in the middle of the filter screen frame 13, positioning rings 14 made of PVC materials are fixed on the holes, each boiling water pipe 2 penetrates through the corresponding positioning ring 14 to enter the boiler, and the positioning rings 14 are mainly used for positioning the position of the boiling water pipe 2 to prevent the boiling water pipe 2 in.
In summary, the utility model has a relatively comprehensive protection design for the main pipe 1, so that the superheated steam can not directly contact the main pipe 1 made of stainless steel, the main pipe 1 is not easy to be corroded, and the ceramic lining 3 also has a certain heat preservation effect; the boiling water pipe 2 is arranged in the main pipe 1, so that the boiling water in the boiling water pipe 2 can be directly insulated and preheated when the superheated steam is discharged out of the boiler, and the steam generation efficiency can be effectively improved.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a stainless steel seamless pipe for boiler which characterized in that: comprises a main pipe and a boiling water pipe connected in the main pipe, wherein the main pipe is internally provided with a ceramic lining, two ends of the main pipe are respectively provided with a ceramic joint, the lower end of the ceramic joint is provided with an internal thread sleeve, the inner side of the internal thread sleeve is provided with a convex ring, the internal thread sleeve and the convex ring keep a distance, the two ends of the main pipe are provided with external threads, the two ceramic joints are respectively screwed at the two ends of the main pipe, the two end parts of the main pipe and the ceramic lining are respectively inserted between the internal thread sleeve and the convex ring, the boiling water pipe positioned in the main pipe extends downwards out of the lower end of the main pipe through an elbow, the ceramic joint at the lower end of the main pipe is provided with a step, a filter screen is fixed on the step, the middle part of a filter screen frame of the filter screen is also provided with four holes corresponding to the boiling water pipe, and positioning rings are fixed on the holes, and each boiling water pipe penetrates through the corresponding positioning ring and then enters the boiler.
2. The stainless steel seamless tube for a boiler according to claim 1, characterized in that: the main pipe is a stainless steel seamless pipe, and the boiling water pipe is a PPR pipe.
3. The stainless steel seamless tube for a boiler according to claim 1, characterized in that: the distance is the sum of the wall thicknesses of the main pipe and the ceramic bushing.
4. The stainless steel seamless tube for a boiler according to claim 1, characterized in that: and a sealing gasket is also arranged between the main pipe and the lower end of the ceramic joint and between the ceramic bushing and the lower end of the ceramic joint.
5. The stainless steel seamless tube for a boiler according to claim 1, characterized in that: the upper end of the main pipe is also provided with a plurality of connecting holes in an array mode, a two-way piece is fixed on each connecting hole and consists of a shell and a metal lining, two ends of the two-way piece are fixed on the main pipe through flanges, and the boiling water pipe is connected with the main pipe through the two-way piece.
6. The stainless steel seamless tube for a boiler according to claim 5, characterized in that: the joint of the flange and the main pipe is also provided with a seal.
7. The stainless steel seamless tube for a boiler according to claim 1, characterized in that: the lower end of the screen frame of the screen is provided with a circle of gaskets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020670861.1U CN212691722U (en) | 2020-04-28 | 2020-04-28 | Stainless steel seamless pipe for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020670861.1U CN212691722U (en) | 2020-04-28 | 2020-04-28 | Stainless steel seamless pipe for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212691722U true CN212691722U (en) | 2021-03-12 |
Family
ID=74886218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020670861.1U Active CN212691722U (en) | 2020-04-28 | 2020-04-28 | Stainless steel seamless pipe for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212691722U (en) |
-
2020
- 2020-04-28 CN CN202020670861.1U patent/CN212691722U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 323400 no.270 Yongning Road, Songyang Industrial Park, Lishui City, Zhejiang Province Patentee after: Pengye Holdings Group Co.,Ltd. Address before: 323400 no.270 Yongning Road, Songyang Industrial Park, Lishui City, Zhejiang Province Patentee before: ZHEJIANG PENGYE STAINLESS STEEL Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |