Heating steam pipe of deaerator

Abstract

The utility model discloses a heating steam pipe of a deaerator, which comprises a deaerator body and is characterized by further comprising a pipeline connecting unit which comprises an inner pipeline component communicated with one end of the deaerator body and an outer pipeline component arranged at one end of the inner pipeline component and used for communicating the deaerator body with a boiler; the sealing unit comprises a sealing ring which is arranged between the inner pipeline assembly and the outer pipeline assembly and used for sealing a connector of the inner pipeline assembly and the outer pipeline assembly, and the side, located on the inner pipeline assembly, of the sealing ring is provided with a second outer sealing ring used for being embedded into the inner pipeline assembly. The side, located on the outer pipeline assembly, of the sealing ring is provided with a first outer sealing ring used for being embedded into the outer pipeline assembly. The first outer sealing ring and the second outer sealing ring on the two sides of the sealing ring are embedded into the second flange plate and the first flange plate correspondingly, so that the effective contact area between the sealing ring and the first flange plate and the effective contact area between the sealing ring and the second flange plate are increased, and the sealing effect is good.

Description

Technical Field

[0001] This utility model relates to the field of deaerator technology, specifically to a deaerator heating steam pipe. Background Technology

[0002] Deaerators are widely used in power systems to remove dissolved oxygen from feedwater, playing a vital role in protecting pipelines and boilers. During the installation and connection process, the inlet and outlet pipes of the boiler deaerator are usually connected to the feedwater and return water pipes of the boiler system. The connection between two adjacent pipes must ensure good sealing of the pipe interface.

[0003] However, existing boiler deaerators typically use horizontal sealing gaskets at both ends to seal the pipe interface between the deaerator and the heating steam pipe when connecting the heating steam pipe. The effective sealing area between the sealing gasket and the flange connecting the pipe is limited, resulting in poor sealing performance.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a deaerator heating steam pipe to solve the problem mentioned in the background art of the small effective contact area and poor sealing effect between the sealing ring and the flange at the connection between the deaerator and the heating steam pipe in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A deaerator heating steam pipe, comprising a deaerator body, characterized in that it further comprises:

[0008] The pipeline connection unit includes an inner pipeline assembly connected to one end of the deaerator body, and an outer pipeline assembly located at one end of the inner pipeline assembly for connecting the deaerator body to the boiler.

[0009] A sealing unit includes a sealing ring disposed between an inner pipe assembly and an outer pipe assembly for sealing the interface between the inner pipe assembly and the outer pipe assembly. The sealing ring is located on one side of the inner pipe assembly and is disposed on a second outer sealing ring for embedding into the inner pipe assembly. The sealing ring is located on one side of the outer pipe assembly and is disposed on a first outer sealing ring for embedding into the outer pipe assembly.

[0010] Furthermore, the inner conduit assembly includes:

[0011] The first pipe is connected to one end of the deaerator body;

[0012] The first flange is fixedly connected to one end of the first pipe relative to the deaerator body;

[0013] The first outer sealing groove is located at one end of the first flange and is used to accommodate the second outer sealing ring, with the second outer sealing ring abutting against the first outer sealing groove.

[0014] Furthermore, the external conduit assembly includes:

[0015] The second flange is located at the end of the sealing ring opposite the first flange;

[0016] The second pipe is connected at one end to one end of the second flange and at the other end to the boiler.

[0017] The second outer sealing groove is located at one end of the second flange and is used to accommodate the first outer sealing ring, with the first outer sealing ring abutting against the second outer sealing groove.

[0018] Furthermore, the external pipe assembly also includes fastening bolts that pass through the sealing ring and the first flange sequentially from one side of the second flange, for fastening the second flange, the sealing ring, and the first flange. Multiple sets of fastening bolts are provided at equal angles around the axis of the second flange.

[0019] The second flange, the sealing ring, and the first flange are all provided with fastening holes for passing through fastening bolts.

[0020] Furthermore, the first flange is provided with a first inner sealing groove on one side of the sealing ring and in the inner area surrounded by multiple fastening bolts;

[0021] The second flange is located on one side of the sealing ring and is provided with a second inner sealing groove in the inner area enclosed by multiple fastening bolts;

[0022] The sealing ring has a second inner sealing ring that abuts against the first inner sealing groove and a first inner sealing ring that abuts against the second inner sealing groove, respectively, fixedly connected to both sides.

[0023] Furthermore, the first outer sealing ring and the second outer sealing ring are located outside the area enclosed by the plurality of fastening bolts.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. This utility model, when connecting the inner pipe assembly and the outer pipe assembly, places the sealing ring between the inner pipe assembly and the outer pipe assembly, and the first outer sealing ring and the second outer sealing ring on both sides of the sealing ring are respectively embedded in the second flange and the first flange, thereby increasing the effective contact area between the sealing ring and the first flange and the second flange, and thus achieving a good sealing effect. Attached Figure Description

[0026] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This diagram shows the fit between the pipe connection unit and the sealing unit of this utility model.

[0028] Figure 3 This is a schematic diagram of the sealing unit structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the internal pipe assembly structure of this utility model;

[0030] Figure 5 This diagram shows the fit between the fastening bolts and the pipe connection unit of this utility model.

[0031] Reference numerals: 100, Deaerator body; 1, Pipeline connection unit; 11, Inner pipeline assembly; 111, First pipeline; 112, First flange; 1121, First outer sealing groove; 1122, First inner sealing groove; 12, Outer pipeline assembly; 121, Second flange; 1211, Second outer sealing groove; 1212, Second inner sealing groove; 122, Second pipeline; 123, Fastening bolt; 2, Sealing unit; 21, Sealing ring; 22, First outer sealing ring; 23, First inner sealing ring; 24, Second outer sealing ring; 25, Second inner sealing ring; 26, Fastening hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-5 This utility model provides a technical solution:

[0034] A deaerator heating steam pipe includes a deaerator body 100, and further includes:

[0035] The pipeline connection unit 1 includes an inner pipeline assembly 11 connected to one end of the deaerator body 100, and an outer pipeline assembly 12 disposed at one end of the inner pipeline assembly 11 for connecting the deaerator body 100 to the boiler.

[0036] The sealing unit 2 includes a sealing ring 21 disposed between the inner pipe assembly 11 and the outer pipe assembly 12 for sealing the interface between the inner pipe assembly 11 and the outer pipe assembly 12. The sealing ring 21 is located on one side of the inner pipe assembly 11 and is disposed on a second outer sealing ring 24 for embedding into the inner pipe assembly 11. The sealing ring 21 is located on one side of the outer pipe assembly 12 and is disposed on a first outer sealing ring 22 for embedding into the outer pipe assembly 12.

[0037] It should be noted that when connecting the inner pipe assembly 11 and the outer pipe assembly 12, the sealing ring 21 is placed between the inner pipe assembly 11 and the outer pipe assembly 12, and the first outer sealing ring 22 and the second outer sealing ring 24 on both sides of the sealing ring 21 are respectively embedded in the second flange 121 and the first flange 112, so that the effective contact area between the sealing ring 21 and the first flange 112 and the second flange 121 is increased, and the sealing effect is good.

[0038] As an improvement, the inner pipe assembly 11 includes:

[0039] The first pipe 111 is connected to one end of the deaerator body 100;

[0040] The first flange 112 is fixedly connected to one end of the first pipe 111 relative to the deaerator body 100;

[0041] The first outer sealing groove 1121 is located at one end of the first flange 112 and is used to accommodate the second outer sealing ring 24. The second outer sealing ring 24 abuts against the first outer sealing groove 1121.

[0042] Furthermore, the external conduit assembly 12 includes:

[0043] The second flange 121 is located at the end of the sealing ring 21 opposite to the first flange 112;

[0044] The second pipe 122 is connected at one end to one end of the second flange 121 and at the other end to the boiler;

[0045] The second outer sealing groove 1211 is located at one end of the second flange 121 and is used to accommodate the first outer sealing ring 22. The first outer sealing ring 22 abuts against the second outer sealing groove 1211.

[0046] Furthermore, the external pipe assembly 12 also includes fastening bolts 123 that pass through the sealing ring 21 and the first flange 112 sequentially from one side of the second flange 121, for fastening the second flange 121, the sealing ring 21, and the first flange 112. Multiple sets of fastening bolts 123 are provided at equal angles around the axis of the second flange 121.

[0047] The second flange 121, the sealing ring 21, and the first flange 112 are all provided with fastening holes 26 for passing through the fastening bolts 123.

[0048] The first flange 112 is located on one side of the sealing ring 21 and is provided with a first inner sealing groove 1122 in the inner area surrounded by multiple fastening bolts 123.

[0049] The second flange 121 is located on one side of the sealing ring 21 and is provided with a second inner sealing groove 1212 in the inner area enclosed by a plurality of fastening bolts 123;

[0050] The sealing ring 21 is fixedly connected to two sides by a second inner sealing ring 25 that abuts against the first inner sealing groove 1122 and a first inner sealing ring 23 that abuts against the second inner sealing groove 1212.

[0051] Furthermore, the first outer sealing ring 22 and the second outer sealing ring 24 are located outside the area enclosed by the plurality of fastening bolts 123.

[0052] It should be noted that, in the specific implementation of this utility model, before installing the second flange 121 onto the first flange 112, the sealing ring 21 is pressed against one side of the first flange 112, and the second outer sealing ring 24 and the second inner sealing ring 25 are respectively pressed against the inside of the first outer sealing groove 1211 and the first inner sealing groove 1122. Then, the second flange 121 is pressed against the side of the sealing ring 21 opposite to the first flange 112, so that the first outer sealing ring 22 and the first inner sealing ring 23 are respectively pressed against the inside of the second outer sealing groove 1211 and the second inner sealing groove 1212. The fastening bolt 123 is then passed through the second flange. After fastening the sealing ring 21 and the corresponding fastening holes 26 of the first flange 112, the nuts are used for locking. This ensures that the interface between the first flange 112 and the second flange 121 is sealed by the sealing ring 21, and further tightened by the first outer sealing ring 22, the second outer sealing ring 24, the first inner sealing ring 23, and the second inner sealing ring 25 against the corresponding second outer sealing groove 1121, the first outer sealing groove 1121, the second inner sealing groove 1212, and the first inner sealing groove 1122, thereby increasing the effective contact area between the sealing ring 21 and the first flange 112 and the second flange 121, resulting in a good sealing effect.

[0053] Furthermore, by placing the first inner sealing ring 23 and the second inner sealing ring 25 within the area enclosed by the multiple fastening bolts 123, and placing the first outer sealing ring 22 and the second outer sealing ring 24 outside the area enclosed by the multiple fastening bolts 123, this invention ensures that after the fastening bolts 123 fasten the first flange 112, the second flange 121, and the sealing ring 21, the first outer sealing ring 22, the second outer sealing ring 24, the first inner sealing ring 23, and the second inner sealing ring 25 can seal the inner and outer areas of the multiple fastening bolts 123 respectively, thereby further improving the sealing effect.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A deaerator heating steam pipe, comprising a deaerator body (100), characterized in that, Also includes: The pipeline connection unit (1) includes an inner pipeline assembly (11) connected to one end of the deaerator body (100) and an outer pipeline assembly (12) located at one end of the inner pipeline assembly (11) for connecting the deaerator body (100) to the boiler. The sealing unit (2) includes a sealing ring (21) disposed between the inner pipe assembly (11) and the outer pipe assembly (12) for sealing the interface between the inner pipe assembly (11) and the outer pipe assembly (12). The sealing ring (21) is located on one side of the inner pipe assembly (11) and is disposed on a second outer sealing ring (24) for embedding into the inner pipe assembly (11). The sealing ring (21) is located on one side of the outer pipe assembly (12) and is disposed on a first outer sealing ring (22) for embedding into the outer pipe assembly (12).

2. The deaerator heating steam pipe according to claim 1, characterized in that: The inner pipe assembly (11) includes: The first pipe (111) is connected to one end of the deaerator body (100); The first flange (112) is fixedly connected to one end of the first pipe (111) relative to the deaerator body (100); The first outer sealing groove (1121) is located at one end of the first flange (112) and is used to accommodate the second outer sealing ring (24). The second outer sealing ring (24) abuts against the first outer sealing groove (1121).

3. A deaerator heating steam pipe according to claim 2, characterized in that: The external conduit assembly (12) includes: The second flange (121) is located at the end of the sealing ring (21) opposite to the first flange (112); The second pipe (122) is connected at one end to one end of the second flange (121) and at the other end to the boiler; The second outer sealing groove (1211) is located at one end of the second flange (121) and is used to accommodate the first outer sealing ring (22). The first outer sealing ring (22) abuts against the second outer sealing groove (1211).

4. A deaerator heating steam pipe according to claim 3, characterized in that: The external pipe assembly (12) also includes fastening bolts (123) that pass through the sealing ring (21) and the first flange (112) sequentially from one side of the second flange (121), for fastening the second flange (121), the sealing ring (21), and the first flange (112). The fastening bolts (123) are arranged in multiple sets at equal angles around the axis of the second flange (121). The second flange (121), the sealing ring (21), and the first flange (112) are all provided with fastening holes (26) for passing through the fastening bolts (123).

5. A deaerator heating steam pipe according to claim 4, characterized in that: The first flange (112) is located on one side of the sealing ring (21) and has a first inner sealing groove (1122) in the inner area surrounded by multiple fastening bolts (123); The second flange (121) is located on one side of the sealing ring (21) and is provided with a second inner sealing groove (1212) in the inner area enclosed by a plurality of fastening bolts (123); The sealing ring (21) is fixedly connected to two sides by a second inner sealing ring (25) that abuts against the first inner sealing groove (1122) and a first inner sealing ring (23) that abuts against the second inner sealing groove (1212).

6. A deaerator heating steam pipe according to claim 5, characterized in that: The first outer sealing ring (22) and the second outer sealing ring (24) are located outside the area enclosed by the plurality of fastening bolts (123).

Images