Novel thermal insulation mechanism of boiler for thermal power

Abstract

The utility model relates to the technical field of thermal power boiler accessories, in particular to a novel thermal power boiler heat preservation mechanism which comprises two integrated heat preservation sleeves, mounting strips are fixedly connected to the tops and the bottoms of the integrated heat preservation sleeves, and positioning anti-falling mechanisms are mounted on the surfaces of the mounting strips. And the positioning anti-falling mechanism comprises an auxiliary groove and a positioning column, a T-shaped groove is formed in the inner wall of the auxiliary groove, and the surface of the positioning column is sleeved with a displacement plate and a spring. Through the arrangement of the integrated heat preservation sleeves, the mounting strips and the positioning anti-falling mechanisms, the two integrated heat preservation sleeves can be positioned and locked through cooperation of the positioning holes and the positioning blocks, the mounting stability between the two integrated heat preservation sleeves is guaranteed, the integrated heat preservation sleeves can be flexibly mounted without detaching a thermal power boiler pipeline, and the thermal power boiler pipeline is prevented from being damaged. And the thermal insulation performance of the thermal power boiler pipeline is ensured by matching with a vacuum thermal insulation part and a thermal insulation needled blanket.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power boiler accessories, in particular to a novel thermal insulation mechanism for boilers used in thermal power generation. Background Art

[0002] A thermal power boiler is an important part of a thermal power plant. It converts the heat energy generated by fuel combustion into steam, and then uses the steam to drive a generator to generate electricity. For the pipeline between the combustion chamber and the circulating return furnace in a thermal power boiler, in order to avoid random heat dissipation, a thermal insulation mechanism is adapted to protect the pipeline.

[0003] After retrieval, the publication number is CN113883502B, and the name is a thermal insulation mechanism for a circulating fluidized bed boiler, including a fixed support, a movable support, a thermal insulation cylinder and an elastic positioning structure. Through research and analysis, it is found that although the stability is high, to a certain extent, there are still the following disadvantages.

[0004] For example, this mechanism uses the form of bolts and nuts to fixedly install the thermal insulation parts. However, when this design is applied to large thermal power boilers, for long pipelines, multiple bolts and nuts need to be configured for locking, and the operation time is long, and the overall operation efficiency is average. Moreover, the thermal insulation parts are integrally designed. When the boiler pipeline is assembled, the corresponding pipeline needs to be disassembled and then sleeved and installed again, and the operation convenience is average. To solve the above technical problems, we have designed a novel thermal insulation mechanism for boilers used in thermal power generation. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a novel thermal insulation mechanism for boilers used in thermal power generation, which has the advantage of flexible operation, and solves the problems that when this mechanism is applied to large thermal power boilers, for long pipelines, multiple bolts and nuts need to be configured for locking, the operation time is long, the overall operation efficiency is average, and the thermal insulation parts are integrally designed. When the boiler pipeline is assembled, the corresponding pipeline needs to be disassembled and then sleeved and installed again, and the operation convenience is average.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A novel thermal insulation mechanism for boilers used in thermal power generation, including an integrated thermal insulation sleeve. The number of the integrated thermal insulation sleeves is two. Installation bars are fixedly connected to the top and bottom of the integrated thermal insulation sleeve. A positioning and anti-detachment mechanism is installed on the surface of the installation bar. The positioning and anti-detachment mechanism includes an auxiliary groove and a positioning post. A T-shaped groove is opened on the inner wall of the auxiliary groove. A displacement plate and a spring are sleeved and installed on the surface of the positioning post respectively. A positioning block is fixedly connected to the bottom of the displacement plate and located in the inner cavity of the auxiliary groove. A clamping block is installed in the inner cavity of the auxiliary groove. Sealing strips are inlaid and installed on the opposite sides of the front and rear two installation bars. The integrated thermal insulation sleeve includes an inner matrix and an outer matrix.

[0007] Preferably, the auxiliary grooves are formed in the mounting strip, and the front and rear auxiliary grooves are in a communicating state. The T-shaped groove is inclined.

[0008] Preferably, a T-shaped head is slidably installed in the inner cavity of the T-shaped groove, and the top of the T-shaped head is fixedly connected to the bottom of the clamping block.

[0009] Preferably, one end of the spring is fixedly connected to the surface of the positioning post, and the other end of the spring is in contact with the surface of the displacement plate.

[0010] Preferably, the displacement plate is inclined, and the connection between the surface of the displacement plate and the positioning post is movably connected.

[0011] Preferably, a positioning hole for cooperating with the positioning block is formed through the surface of the clamping block, and the adjacent two displacement plates are arranged in a staggered up and down manner.

[0012] Preferably, a heat preservation needle blanket and a vacuum heat preservation member are fixedly installed between the inner matrix and the outer matrix in sequence from inside to outside, and the heat preservation needle blanket is made of aluminum silicate ceramic fiber needle blanket.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By providing an integrated heat preservation sleeve, a mounting strip and a positioning and anti-detachment mechanism, the present utility model has the advantage of flexible assembly. It can use the cooperation of the positioning hole and the positioning block to position and lock two integrated heat preservation sleeves, ensuring the installation stability between the two integrated heat preservation sleeves. Without disassembling the thermal power boiler pipeline, the integrated heat preservation sleeve can be flexibly installed, and it cooperates with the vacuum heat preservation member and the heat preservation needle blanket to ensure the heat preservation performance of the thermal power boiler pipeline, which is more in line with the actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional schematic diagram of the structure of the present utility model;

[0016] Figure 2 is a three-dimensional view of the separated structure of the present utility model;

[0017] Figure 3 is a three-dimensional view of the separated positioning and anti-detachment mechanism of the present utility model;

[0018] Figure 4 is a three-dimensional sectional view of the integrated heat preservation sleeve of the present utility model.

[0019] In the figure: 1. Integrated heat preservation sleeve; 101. Inner matrix; 102. Outer matrix; 103. Vacuum heat preservation component; 104. Heat preservation needle punched blanket; 2. Installation strip; 3. Positioning and anti - detachment mechanism; 301. Auxiliary groove; 302. Block; 303. Positioning hole; 304. Positioning column; 305. Spring; 306. Displacement plate; 307. Positioning block; 308. T - shaped head; 309. T - shaped groove; 4. Sealing strip. Detailed implementation mode

[0020] Please refer to Figures 1-4 , a new type of heat preservation mechanism for boilers used in thermal power generation, including an integrated heat preservation sleeve 1. The number of integrated heat preservation sleeves 1 is two. Installation strips 2 are fixedly connected to both the top and bottom of the integrated heat preservation sleeve 1. A positioning and anti - detachment mechanism 3 is installed on the surface of the installation strip 2. The positioning and anti - detachment mechanism 3 includes an auxiliary groove 301 and a positioning column 304. The bottom of the positioning column 304 is fixedly connected to the connection part of the integrated heat preservation sleeve 1. By setting the positioning column 304, the installation requirements of the spring 305 and the displacement plate 306 can be met. A T - shaped groove 309 is opened on the inner wall of the auxiliary groove 301. The displacement plate 306 and the spring 305 are respectively sleeved on the surface of the positioning column 304. By setting the spring 305, elastic support can be provided for the displacement plate 306 to prevent the displacement plate 306 from moving randomly. By setting the displacement plate 306, the fixed installation requirements of the positioning block 307 can be met. A positioning block 307 is fixedly connected to the bottom of the displacement plate 306 and located in the inner cavity of the auxiliary groove 301. A block 302 is installed in the inner cavity of the auxiliary groove 301. Sealing strips 4 are inlaid on the opposite sides of the front and rear two installation strips 2. By setting the sealing strips 4, the connection part between the two installation strips 2 can be sealed and protected to prevent gaps from affecting the overall heat preservation and sound insulation performance. The integrated heat preservation sleeve 1 includes an inner matrix 101 and an outer matrix 102;

[0021] Please refer to Figure 1 and Figure 3 , the auxiliary groove 301 is opened on the installation strip 2. The front and rear two auxiliary grooves 301 are in a communicating state. By setting the auxiliary groove 301, the displacement space requirements of the block 302 can be met. The T - shaped groove 309 is inclined;

[0022] Please refer to Figure 1 and Figure 3 , a T - shaped head 308 is slidably installed in the inner cavity of the T - shaped groove 309. The top of the T - shaped head 308 is fixedly connected to the bottom of the block 302. By setting the T - shaped head 308 and the T - shaped groove 309, the function of guiding and anti - detachment can be achieved, and the left - right sliding stability of the block 302 can be ensured;

[0023] Please refer to Figure 1 and Figure 3 , one end of the spring 305 is fixedly connected to the surface of the positioning column 304, and the other end of the spring 305 is in contact with the surface of the displacement plate 306;

[0024] Please refer to Figure 1 and Figure 3 , the displacement plate 306 is inclined, and the connection between the surface of the displacement plate 306 and the positioning post 304 is movably connected;

[0025] Please refer to Figure 1 and Figure 3 , a positioning hole 303 for cooperating with the positioning block 307 is formed through the surface of the clamping block 302. By providing the positioning hole 303 and the positioning block 307, the positioning and installation functions can be achieved, and the two integrated heat preservation sleeves 1 can be prevented from being displaced randomly and separated during the installation state. The adjacent two displacement plates 306 are arranged in a staggered up-and-down manner;

[0026] Please refer to Figure 4 , a heat preservation needle felt 104 and a vacuum heat preservation member 103 are fixedly installed between the inner base body 101 and the outer base body 102 in sequence from the inside to the outside. The material of the heat preservation needle felt 104 is aluminosilicate ceramic fiber needle felt. By providing the heat preservation needle felt 104, it has the advantages of heat preservation, fire prevention and sound absorption, can enhance the overall heat preservation performance of the integrated heat preservation sleeve 1, and absorb the transmitted sound, playing an auxiliary role in noise reduction;

[0027] The vacuum heat preservation member 103 includes two arc plates, and a vacuum is provided between the two arc plates, which is used to utilize the vacuum characteristics to reduce the heat conduction rate and weaken the sound conduction intensity, so as to achieve the functions of heat preservation and noise reduction;

[0028] A convex block is fixedly connected to the surface of the clamping block 302, and a groove for cooperating with the convex block is formed on the surface of the clamping block 302. The existence of the convex block and the groove facilitates the accurate docking of the front and rear clamping blocks 302, and after the docking is completed, the two clamping blocks 302 can be displaced synchronously left and right.

[0029] During use, all components are in the initial state. The two integrated heat preservation sleeves 1 are respectively sleeved on the thermal power boiler pipeline, and the positions of the two clamping blocks 302 are slid and adjusted. The two clamping blocks 302 are slid synchronously to the right. Under the cooperation of the T-shaped head 308 and the T-shaped groove 309, the two clamping blocks 302 will partially overlap and move synchronously to the right. Finally, the positioning hole 303 on the clamping block 302 is aligned with the positioning block 307. The displacement plate 306 is slid on the positioning post 304 synchronously, and the spring 305 is compressed. After the positioning hole 303 is aligned with the positioning block 307, the displacement plate 306 is released. Under the elastic support of the spring 305, the positioning block 307 will automatically displace into the positioning hole 303. At this time, the two integrated heat preservation sleeves 1 cannot be separated randomly. The cooperation of multiple positioning and anti-disconnection mechanisms 3 can complete the multi-position positioning and reinforcement of the integrated heat preservation sleeve 1, ensure the installation stability of the integrated heat preservation sleeve 1, and can still be well adapted when applied to the long pipeline of a large thermal power boiler. The overall operation is rapid and convenient.

[0030] In summary, for the new thermal power boiler insulation mechanism, by setting the integrated insulation sleeve 1, mounting strip 2 and positioning and anti-disengagement mechanism 3, it solves the problems that when this mechanism is applied to large thermal power boilers, for long pipelines, multiple bolts and nuts need to be configured for locking, the operation time is relatively long, the overall operation efficiency is average, and the insulation parts are integrally designed. When the boiler pipeline assembly is completed, the corresponding pipeline needs to be disassembled and then sleeved and installed again, and the operation convenience is average.

Claims

1. A novel thermal insulation mechanism for a thermal power boiler, comprising an integrated thermal insulation sleeve (1), characterized in that: The number of the integrated thermal insulation sleeves (1) is two. The top and bottom of the integrated thermal insulation sleeves (1) are both fixedly connected with mounting strips (2). The surface of the mounting strips (2) is installed with a positioning and anti-slipping mechanism (3). The positioning and anti-slipping mechanism (3) comprises an auxiliary groove (301) and a positioning column (304). The inner wall of the auxiliary groove (301) is provided with a T-shaped groove (309). The surface of the positioning column (304) is respectively sleeved with a displacement plate (306) and a spring (305). The bottom of the displacement plate (306) and the inner cavity of the auxiliary groove (301) are fixedly connected with a positioning block (307). The inner cavity of the auxiliary groove (301) is installed with a clamping block (302). The opposite sides of the front and rear mounting strips (2) are inlaid with sealing strips (4). The integrated thermal insulation sleeve (1) comprises an inner base body (101) and an outer base body (102).

2. The novel thermal insulation mechanism for a thermal power boiler according to claim 1 is characterized in that: The auxiliary groove (301) is provided on the mounting strip (2), the front and rear auxiliary grooves (301) are in a connected state, and the T-shaped groove (309) is arranged obliquely.

3. The novel thermal insulation mechanism for a thermal power boiler according to claim 1 is characterized in that: A T-shaped head (308) is slidably mounted in the inner cavity of the T-shaped slot (309), and the top of the T-shaped head (308) is fixedly connected to the bottom of the clamping block (302).

4. The novel thermal insulation mechanism for a thermal power boiler according to claim 1 is characterized in that: One end of the spring (305) is fixedly connected to the surface of the positioning column (304), and the other end of the spring (305) is in contact with the surface of the displacement plate (306).

5. The novel thermal insulation mechanism for a thermal power boiler according to claim 1 is characterized in that: The displacement plate (306) is arranged to be inclined, and the surface of the displacement plate (306) is movably connected to the connection point of the positioning column (304).

6. The novel thermal insulation mechanism for a thermal power boiler according to claim 1 is characterized by: A positioning hole (303) for use with a positioning block (307) is formed through the surface of the clamping block (302), and two adjacent displacement plates (306) are arranged in an up-and-down staggered manner.

7. The novel thermal insulation mechanism for a thermal power boiler according to claim 1 is characterized in that: A thermal insulation needle punched blanket (104) and a vacuum thermal insulation component (103) are fixedly installed between the inner matrix (101) and the outer matrix (102) in sequence from the inside to the outside, and the thermal insulation needle punched blanket (104) is made of an aluminum silicate ceramic fiber needle punched blanket.

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