An online coke cleaning device for temperature measuring elements of a garbage incinerator

Abstract

The invention discloses an online decoking device for a temperature measuring element of a garbage incinerator, comprising an outer measuring tube and an inner measuring tube, one end of the inner measuring tube extending into the outer measuring tube, the other end of the inner measuring tube being provided with a first mounting assembly, the temperature measuring element being inserted into the inner measuring tube and being fixed by the first mounting assembly; one end of the outer measuring tube being connected to the tube wall of the garbage incinerator, the other end being provided with a decoking assembly detachably, the decoking assembly extending between the outer measuring tube and the inner measuring tube, so as to perform a decoking operation on the temperature measuring element. The invention has the advantages of simple structure, easy operation and good decoking effect.

Description

Technical Field

[0001] The invention mainly relates to the technical field of domestic waste incineration, and in particular to an online coke cleaning device for a temperature measuring element of a waste incinerator. Background Art

[0002] As the country attaches great importance to environmental protection, incineration power generation, as a mature technology for harmless treatment of urban domestic waste, has been widely used throughout the country. There are relevant regulations on furnace temperature marking, maintenance, and replacement. Each waste power plant has implemented control and adopted corresponding control measures for furnace temperature requirements in terms of temperature quality, coking conditions, etc. As the assessment of furnace temperature becomes more and more stringent, in order to ensure the quality and stability of furnace temperature, the furnace temperature must be strictly handled.

[0003] The furnace temperature measurement structure currently commonly used is the flange and temperature socket connection method, which has the following problems: 1. It is impossible to timely understand the coking condition of the internal temperature of the furnace. It can only be judged that there is a problem with the furnace temperature by the change of the furnace temperature, and then the temperature measurement structure is removed to understand the condition of the temperature measuring point; 2. The furnace temperature measuring point is an important means of online detection of dioxins in municipal solid waste incineration power plants. The normal operation of the furnace temperature measuring point can only be processed once every 24 hours. If the furnace water-cooled wall is severely coked or there is coke flow, it is more troublesome to handle. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the problems existing in the prior art, the present invention provides an online decoking device for a temperature measuring element of a garbage incinerator which has a simple structure and good decoking effect.

[0005] In order to solve the above technical problems, the technical solution proposed by the present invention is:

[0006] An online decoking device for a temperature measuring element of a waste incinerator comprises an outer measuring tube and an inner measuring tube, wherein one end of the inner measuring tube extends into the outer measuring tube, and the other end of the inner measuring tube is provided with a first mounting assembly, and the temperature measuring element is passed through the inner measuring tube and fixed by the first mounting assembly; one end of the outer measuring tube is connected to the tube wall of the waste incinerator, and the other end is detachably provided with a decoking assembly, and the decoking assembly extends between the outer measuring tube and the inner measuring tube to perform decoking operations on the temperature measuring element.

[0007] As a further improvement of the above technical solution:

[0008] The decoking assembly includes a decoking shovel and an extension rod. One end of the decoking shovel is detachably mounted on the other end of the outer measuring tube through a second mounting assembly, and the other end of the decoking shovel extends into the interior of the outer measuring tube. One end of the extension rod is threadedly connected to one end of the decoking shovel.

[0009] The other end of the decoking shovel is tapered.

[0010] The second mounting assembly includes a second flange and a clamping sleeve. The second flange is provided with a mounting hole. The clamping sleeve is arranged in the mounting hole to clamp the decoking shovel in the mounting hole.

[0011] The second flange is provided with an observation window.

[0012] The first mounting assembly includes a first flange, and the first flange is provided with an avoidance groove directly above the observation window.

[0013] The second flange is provided with a reserved hole.

[0014] The outer measuring tube and the inner measuring tube are both made of steel.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] According to the present invention, when decoking is not needed, the decoking shovel is located between the outer measuring tube and the inner measuring tube to prevent the decoking shovel from being burned by high temperature. When decoking is performed, the extension rod can be threadedly connected to the end of the decoking shovel, and then the decoking shovel is extended to the coking position of the temperature measuring element through the extension rod, and then moved up and down to perform decoking. The operation is simple and the decoking effect is good. The above-mentioned overall structure is simple and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the device of the present invention in an embodiment.

[0018] Figure 2 It is a cross-sectional view of an extension rod in an embodiment of the present invention.

[0019] Figure 3 It is a cross-sectional view of the first mounting component in the embodiment of the present invention.

[0020] Figure 4 It is a top view of the first mounting component in the embodiment of the present invention.

[0021] Figure 5 It is a cross-sectional view of the second mounting component in the embodiment of the present invention.

[0022] Figure 6 It is a top view of the second mounting component in the embodiment of the present invention.

[0023] Figure 7 It is a cross-sectional view of an embodiment of the outer measuring tube in the present invention.

[0024] Figure 8 It is a top view of the outer measuring tube in the present invention in an embodiment.

[0025] Legend: 1. External measuring tube; 2. Internal measuring tube; 3. First mounting assembly; 301. First flange; 302. Fastening hole; 303. Avoidance groove; 4. Second mounting assembly; 401. Second flange; 402. Mounting hole; 403. Clamping sleeve; 404. Observation window; 405. Reserved hole; 5. De-coking assembly; 501. De-coking shovel; 502. Extension rod. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figure 1 As shown, the online decoking device of the temperature measuring element of a waste incinerator according to an embodiment of the present invention comprises an outer measuring tube 1 and an inner measuring tube 2, wherein one end of the outer measuring tube 1 is connected to the tube wall of the waste incinerator (such as by welding), wherein the inner measuring tube 2 extends into the outer measuring tube 1, and a first mounting component 3 is provided at the end of the inner measuring tube 2 that does not extend into the outer measuring tube 1, wherein the temperature measuring element is penetrated into the inner measuring tube 2 and fixed by the first mounting component 3; the other end of the outer measuring tube 1 is detachably provided with a decoking component 5, and the decoking component 5 extends between the outer measuring tube 1 and the inner measuring tube 2 to perform a decoking operation on the temperature measuring element.

[0028] Specifically, the decoking assembly 5 includes a decoking shovel 501 and an extension rod 502. One end of the decoking shovel 501 is detachably mounted on the other end of the outer measuring tube 1 through the second mounting assembly 4. The other end of the decoking shovel 501 extends into the interior of the outer measuring tube 1. One end of the extension rod 502 is threadedly connected to one end of the decoking shovel 501. The second mounting assembly 4 includes a second flange 401 and a ferrule 403. The second flange 401 is provided with a mounting hole 402. The ferrule 403 is threadedly mounted in the mounting hole 402 to clamp the decoking shovel 501 in the mounting hole 402. When decoking is not required, the decoking shovel 501 is fixed to the second flange 401 through the ferrule 403, and the decoking shovel 501 is located between the outer measuring tube 1 and the inner measuring tube 2 to prevent the decoking shovel 501 from being burned at high temperature. When performing the decoking operation, the extension rod 502 is threadedly connected to the end of the decoking shovel 501, and then the decoking shovel 501 is extended to the coking position of the temperature measuring element through the extension rod 502, and then moved up and down to perform the decoking operation, which is easy to operate. The head of the decoking shovel 501 is conical, which can ensure a good decoking effect. The above overall structure is simple and easy to implement.

[0029] Furthermore, the second flange 401 is provided with an observation window 404, through which the coking condition of the measuring element can be observed, and the subsequent decoking operation is also convenient and thorough. In addition, the second flange 401 is provided with a reserved hole 405, and when the decoking shovel 501 cannot be completely cleaned, a stainless steel pipe can also be used to blow through the reserved hole 405. Of course, in order to ensure the convenience of observation, the first mounting assembly 3 (first flange 301) is provided with an avoidance groove 303 just above the observation window 404.

[0030] During normal operation, the decoking shovel 501 is fixed between the outer measuring tube 1 and the inner measuring tube 2 to prevent the decoking shovel 501 from burning; the temperature measuring elements such as thermocouples or thermal resistors are fixed by bolts through the fastening holes 302 on the first flange 301. When the temperature measuring elements need to be replaced, only the bolts need to be removed and the temperature measuring elements can be replaced; the thermal control and operation personnel check the coking condition of the temperature measuring elements in the container through the rectangular observation window 404 on the second flange 401. If the temperature measuring element sleeve is coked, the extension rod 502 is passed through the hole on the first flange 301 and then threaded to the decoking shovel 501, and then the clamping sleeve 403 fixing the decoking shovel 501 is loosened, and the decoking shovel 501 is moved up and down to remove the coking on the sleeve. If the decoking shovel 501 cannot be cleaned thoroughly, it can also be purged through the reserved hole 405 with a stainless steel pipe (the reserved hole 405 is sealed by a hole plug when not in use). In order to ensure the sealing of the temperature socket, the mounting hole 402 is sealed with a ferrule 403 joint; if the decoking shovel 501 is damaged or dropped into the furnace, it can also be replaced by removing the bolts of the second flange 401.

[0031] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. An online coke cleaning device for a temperature measuring element of a garbage incinerator, characterized in that: The invention comprises an outer measuring tube (1) and an inner measuring tube (2), wherein one end of the inner measuring tube (2) extends into the outer measuring tube (1), and the other end of the inner measuring tube (2) is provided with a first mounting assembly (3), and a temperature measuring element is inserted into the inner measuring tube (2) and fixed by the first mounting assembly (3); one end of the outer measuring tube (1) is connected to the tube wall of the waste incinerator, and the other end is provided with a detachable coke clearing assembly (5), and the coke clearing assembly (5) extends between the outer measuring tube (1) and the inner measuring tube (2) to perform a coke clearing operation on the temperature measuring element; the first mounting assembly (3) comprises a first flange (301), and the temperature measuring element is fixed by bolts in a fastening hole on the first flange (301); The decoking assembly (5) comprises a decoking shovel (501) and an extension rod (502); one end of the decoking shovel (501) is detachably mounted on the other end of the outer measuring tube (1) via a second mounting assembly (4); the other end of the decoking shovel (501) extends into the interior of the outer measuring tube (1); and one end of the extension rod (502) is threadedly connected to one end of the decoking shovel (501).

2. The online decoking device for the temperature measuring element of a waste incinerator according to claim 1, characterized in that: The other end of the decoking shovel (501) is tapered.

3. The online decoking device for the temperature measuring element of a waste incinerator according to claim 1 or 2, characterized in that: The second mounting assembly (4) comprises a second flange (401) and a clamping sleeve (403); the second flange (401) is provided with a mounting hole (402); the clamping sleeve (403) is arranged in the mounting hole (402) to clamp the decoking shovel (501) in the mounting hole (402).

4. The online decoking device for the temperature measuring element of a garbage incinerator according to claim 3 is characterized in that: The second flange (401) is provided with an observation window (404).

5. The online decoking device for the temperature measuring element of a garbage incinerator according to claim 4, characterized in that: The first flange (301) is provided with an avoidance groove (303) directly above the observation window (404).

6. The online decoking device for the temperature measuring element of a garbage incinerator according to claim 4, characterized in that: The second flange (401) is provided with a reserved hole (405).

7. The online decoking device for the temperature measuring element of a waste incinerator according to claim 1 or 2, characterized in that: The outer measuring tube (1) and the inner measuring tube (2) are both made of steel.

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