CN203907644U - Expansion joint structure for flues of thermal power plant - Google Patents
Expansion joint structure for flues of thermal power plant Download PDFInfo
- Publication number
- CN203907644U CN203907644U CN201420302163.0U CN201420302163U CN203907644U CN 203907644 U CN203907644 U CN 203907644U CN 201420302163 U CN201420302163 U CN 201420302163U CN 203907644 U CN203907644 U CN 203907644U
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- CN
- China
- Prior art keywords
- expansion joint
- power plant
- flue
- joint structure
- thermal power
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- 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.)
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Abstract
The utility model relates to an expansion joint structure for flues of a thermal power plant. The expansion joint structure for the flues of the thermal power plant comprises the flues which are connected with the two ends of an expansion joint, wherein the section of the expansion joint is of a U-shaped structure, the expansion joint is made of VF composite materials and is composed of four sections, the integrated and continuous expansion joint structure is formed by splicing the four sections of the expansion joint, an acid liquor discharging port is further formed in the bottom of the expansion joint, and an acid discharging pipe is downward installed at the position of the acid liquor discharging port perpendicularly. According to the expansion joint structure for the flues of the thermal power plant, the expansion joint is made of the VF composite materials, the corrosion resistance, the abrasion resistance and the aging resistance of the expansion joint structure are excellent under the action of the wet smoke of the power plant; the strength and the tenacity are guaranteed at the same time, the service life of a non-metallic compensator can reach five to ten years due to the research and development of the expansion joint, the repair cost and the maintenance cost are greatly reduced, and installation is extremely convenient; meanwhile, the application range of the VF composite materials is widened, and the market prospect is extremely broad.
Description
Technical field
The utility model relates to the jockey in flue, relates in particular to a kind of expansion joint structure of using for firepower electrical plant flue.
Background technology
At present, thermal power plant's flue adopts non-metal expansion joint (fabric compensator) more, its feature is can compensating axial, laterally, angle distortion, and have without thrust, simplify the features such as susceptor design, corrosion-resistant, high temperature resistant, silencing vibration-damping.Meanwhile, non-metal compensator, as a kind of flexible member, claims again flexible expansion joint, flexible bellow, flexible coupling etc., is sometimes also referred to as compensator (Shock absorber throat).Thereby, nonmetal textile compensator at home power industry is widely used, and flue gas desulfur device flue expansion joint is on the market all to adopt this non-metal compensator substantially, the covering of its main heat-absorbing deformation is to become a kind of high-intensity sealing composite by MULTILAYER COMPOSITE such as fluorubber, polytetrafluoroethylene (PTFE) and glass fibre cottons.Covering requires: corrosion-resistant, oxytolerant, light radiation and weathering aging, do not absorb water, fire-retardant.Service condition is good on the whole, but, the maximum problem existing is that service life is shorter, especially the clean flue of level and chimney entrance expansion joint, bottom long period of soaking, in acid solution, is subject to again high-temperature flue gas and impacts during flue gas by-passing, environment for use is severe, only have 2-3 average life, and installation and maintenance neither be very convenient.
Utility model content
The utility model provides a kind of simple in structure, easy for installation, the expansion joint of long service life in order to address the above problem.
In order to address the above problem, the technical solution adopted in the utility model is: the expansion joint structure that a kind of thermal power plant flue is used, comprise the flue that connects expansion joint two ends, the cross section of the described expansion joint structure that takes the shape of the letter U, what described expansion joint adopted is that VF composite divides four sections to be spliced to form an expansion joint structure that integral body is continuous, the bottom of described expansion joint is also provided with an acid solution discharge outlet, and acid solution discharge outlet place is provided with an ACID downward vertically.
In order to make the telescopicing performance of expansion joint better, the thickness of described expansion joint is between (2-3) mm.
In order to make the better effects if that is connected between expansion joint and flue, the superficial layer at place, described expansion joint two ends is blasting treatment coarse structure, is sprayed with VF special glue, and expansion joint and flue are fixed between described superficial layer and the flue at two ends.
In order to make the overall performance of expansion joint better, between described every section of expansion joint, be all sprayed with VF special glue, and form a circle or square expansion joint integral body by VF special glue bonding.
Convenient for the ease of discharge acid solution, between described acid solution discharge outlet and ACID, by VF special glue, fix.
In order to be further convenient to discharge acid solution conveniently, described ACID is that glass-reinforced plastic material is made, and ACID diameter is between (3-5) CM.
Of the present utility model producing effect is: this expansion joint has adopted VF composite to make, power plant's wet flue gas is had to good anticorrosion, wear-resisting, ageing resistace, have intensity and toughness concurrently simultaneously, the research and development of expansion joint will make non-metal compensator reach 5-10 service life, greatly reduce repair and maintenance cost, and installation is also very convenient, simultaneously, the range of application of expanding VF composite, market prospects are very wide.
Accompanying drawing explanation
Fig. 1 is the installation cutaway view of the expansion joint structure used of thermal power plant described in the utility model flue;
Fig. 2 is the enlarged diagram of A in Fig. 1;
In figure: 1-flue, 2-expansion joint, 21-acid solution discharge outlet, 3-ACID, 4-VF special glue.
The specific embodiment
The expansion joint structure of thermal power plant described in the utility model flue being used below in conjunction with accompanying drawing is described in further detail:
As shown in Figure 1: the expansion joint structure that a kind of thermal power plant described in the utility model flue is used, comprise the flue 1 that connects expansion joint 2 two ends, the cross section of the described expansion joint structure that takes the shape of the letter U, and expansion joint 2 employings is that VF composite divides four sections to be spliced to form expansion joint 2 structures that integral body is continuous, between described every section of expansion joint 2, be all sprayed with VF special glue 4, and form a circle or square expansion joint 2 integral body by VF special glue 4 bondings.The material that described VF composite is the independent research of this department, described VF special glue 4 is also a kind of adhesive glue of this department for the special research and development of this VF composite, and other adhesive glue on the market to this product without bonding inoperative, the superficial layer at described expansion joint 2 places, two ends is blasting treatment coarse structure, between described superficial layer and the flue at two ends, be sprayed with VF special glue 4, and expansion joint 2 is fixing with flue 1.And the thickness of expansion joint 2 is between (2-3) mm.Simultaneously, the bottom of expansion joint 2 is also provided with an acid solution discharge outlet 21, and acid solution discharge outlet 21 places are provided with an ACID 3 downward vertically, simultaneously, also fixing by VF special glue 4 between described acid solution discharge outlet 21 and ACID 3, described ACID 3 is for glass-reinforced plastic material is made, and ACID 3 diameters are between (3-5) CM.
Claims (6)
- The expansion joint structure that 1.Yi Zhong thermal power plant flue is used, comprise the flue that connects expansion joint two ends, the cross section of the described expansion joint structure that takes the shape of the letter U, it is characterized in that: what described expansion joint adopted is that VF composite divides four sections to be spliced to form an expansion joint structure that integral body is continuous, the bottom of described expansion joint is also provided with an acid solution discharge outlet, and acid solution discharge outlet place is provided with an ACID downward vertically.
- 2. the expansion joint structure that thermal power plant according to claim 1 flue is used, is characterized in that: the thickness of described expansion joint is between (2-3) mm.
- 3. the expansion joint structure that thermal power plant according to claim 1 flue is used, it is characterized in that: the superficial layer at place, described expansion joint two ends is blasting treatment coarse structure, between described superficial layer and the flue at two ends, be sprayed with VF special glue, and expansion joint and flue are fixed.
- 4. the expansion joint structure that thermal power plant according to claim 1 flue is used, is characterized in that: between described every section of expansion joint, be all sprayed with VF special glue, and form a circle or square expansion joint integral body by VF special glue bonding.
- 5. the expansion joint structure that thermal power plant according to claim 1 flue is used, is characterized in that: between described acid solution discharge outlet and ACID, by VF special glue, fix.
- 6. the expansion joint structure that thermal power plant according to claim 5 flue is used, is characterized in that: described ACID is that glass-reinforced plastic material is made, and ACID diameter is between (3-5) CM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302163.0U CN203907644U (en) | 2014-06-09 | 2014-06-09 | Expansion joint structure for flues of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302163.0U CN203907644U (en) | 2014-06-09 | 2014-06-09 | Expansion joint structure for flues of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203907644U true CN203907644U (en) | 2014-10-29 |
Family
ID=51781919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420302163.0U Expired - Fee Related CN203907644U (en) | 2014-06-09 | 2014-06-09 | Expansion joint structure for flues of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203907644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443628A (en) * | 2018-05-16 | 2018-08-24 | 中国华电科工集团有限公司 | A kind of expansion joint for thermal power plant flue junction |
| CN110145755A (en) * | 2019-05-28 | 2019-08-20 | 江苏龙净节能科技有限公司 | A kind of cooling heat exchange device of industrial smoke |
-
2014
- 2014-06-09 CN CN201420302163.0U patent/CN203907644U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443628A (en) * | 2018-05-16 | 2018-08-24 | 中国华电科工集团有限公司 | A kind of expansion joint for thermal power plant flue junction |
| CN110145755A (en) * | 2019-05-28 | 2019-08-20 | 江苏龙净节能科技有限公司 | A kind of cooling heat exchange device of industrial smoke |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20190609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |