Fluidized bed boiler hood anti-wear sleeve

Abstract

The utility model discloses an anti-wear sleeve for a hood of a fluidized bed boiler, comprising two jacket bodies, a same connecting assembly being installed between the two jacket bodies, the connecting assembly comprising four extension strips fixedly connected at both sides of the two jacket bodies, two extension strips on one side being symmetrically arranged and being able to fit each other, a card slot being provided in the middle of an outer wall at one end of the two extension strips on one side away from each other, two card slots on one side being slidably plugged with a same card frame, and the length of the card frame being greater than the length of the card slot, a same bolt being slidably plugged with the bottom of the two card frames, and the bolt being able to penetrate the card frame and extend outwards, the utility model can form a protection on the outside of the hood body by arranging the jacket body and the connecting assembly, effectively preventing the hood body from being seriously worn due to increased use time, and making replacement of the jacket body more convenient and quick.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler accessories, in particular to an anti-wear sleeve of a hood of a fluidized bed boiler. Background Art

[0002] Circulating fluidized bed boilers have the characteristics of high combustion efficiency, low pollution, fuel saving and easy adjustment. Currently, the most widely used fluidized bed boiler hoods are roughly divided into the following categories: mushroom head hood, cylindrical head hood, cone head hood, hexagonal head hood, flat head hood, triangular head hood, duckbill hood, T-shaped hood, etc.

[0003] Most of the above-listed types of hoods adopt an integral structural design, that is, the hood head and the air inlet pipe are welded into one, or the integral material is processed (turning, milling, drilling), and the lower end of the air inlet pipe of the hood is plugged and welded to the tube hole of the boiler air distribution plate. However, many problems will arise if the operation time is too long, especially the hood with a hood head will be seriously worn and leak ash, which often affects the fluidization quality. The refractory material of the welding part must be dug out and the old weld must be cut off, the entire hood must be replaced, re-welded and refilled with refractory material. This situation will damage the refractory material layer on the air distribution plate, and the maintenance and replacement workload is large and the cost is high. Therefore, a fluidized bed boiler hood anti-wear sleeve is proposed. Utility Model Content

[0004] The utility model aims to provide a fluidized bed boiler hood anti-wear sleeve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fluidized bed boiler hood anti-wear cover, comprising two cover bodies, characterized in that: a same connecting component is installed between the two cover bodies, the connecting component comprises four extension strips fixedly connected on both sides of the two cover bodies, two extension strips on one side are symmetrically arranged and can fit each other, a card slot is opened in the middle of the outer wall of one end of the two extension strips on one side away from each other, and the two card slots on one side are slidably plugged with the same card frame, and the length of the card frame is greater than the length of the card slot.

[0006] As a further preferred embodiment of the present technical solution, a same bolt is slidably inserted into the bottom of the two card frames, and the bolt can penetrate the card frames and extend outwards, and one end of the two bolts is threadedly connected with a nut.

[0007] It can form a protection on the outside of the hood body, effectively preventing the hood body from being seriously worn due to increased use time, and the replacement of the sheath body is more convenient and quick. The screw is driven to rotate by the knob, and one end of the screw will be squeezed toward the sheath body along the mounting sleeve, and it will be blocked by the sheath body and cannot move forward. As the screw continues to rotate, the mounting sleeve restricted by the two springs will be driven outward by the screw until the protective tube inside the mounting sleeve is no longer in the internal space of the sheath body, thereby ensuring that it will not hinder the installation of the sheath body. When the sheath body is attached to the outer wall of the hood body, the restriction on the mounting sleeve is cancelled, and the stretched spring can drive the mounting sleeve and the protective tube into the air outlet of the hood body. If the air outlet is blocked, it can be easily handled by removing the sheath body.

[0008] As a further preferred embodiment of the present technical solution, matching hood bodies are arranged inside the two sheath bodies, and a plurality of air outlet holes on the circumferential outer wall of the hood body correspond one-to-one to the plurality of air outlet holes of the two sheath bodies.

[0009] As a further preferred embodiment of the present technical solution, a plurality of protective components are installed on the circumferential outer walls of the two sheath bodies, and the plurality of protective components are respectively located outside the plurality of air outlets of the two sheath bodies.

[0010] As a further preferred embodiment of the present technical solution, the protective component includes a protective tube slidably inserted into the air outlet of the sheath body, and the protective tube can extend into the hood body. An installation sleeve is fixedly provided on one end of the circumferential outer wall of the protective tube, and two springs are fixedly connected between the installation sleeve and the circumferential outer wall of the sheath body.

[0011] As a further preferred embodiment of the present technical solution, a screw is threadedly connected to the bottom of the installation sleeve, and the screw can contact the outer wall of the sleeve body.

[0012] Insert the two ends of the card frame into the two card slots of the two extension strips respectively to prevent the two cover bodies from fitting tightly together to form a whole state, thereby forming a comprehensive protection on the outside of the hood body, effectively preventing the hood body from being worn due to external factors. Then pass the bolts through the two ends of the bottom of the card frame, and then use nuts to close the bottom of the card frame, so that the connection state of the two cover bodies is more stable.

[0013] As a further preferred embodiment of the present technical solution, a reinforcement ring is provided at the bottom of the circumferential outer walls of the two sheath bodies, and the bottom outer walls of the two reinforcement rings and the bottom outer wall of the sheath body are at the same level.

[0014] The utility model provides a fluidized bed boiler hood anti-wear sleeve, which has the following beneficial effects:

[0015] (1) The utility model can form a protection on the outside of the hood body by providing a protective sleeve body and a connecting component, effectively preventing the hood body from being seriously worn due to increased use time, and the replacement of the protective sleeve body is more convenient and quick. The screw is driven to rotate by the knob, and one end of the screw will be squeezed toward the protective sleeve body along the installation sleeve, and it will be blocked by the protective sleeve body and cannot move forward. As the screw continues to rotate, the installation sleeve restricted by the two springs will be driven outward by the screw until the protective tube inside the installation sleeve is no longer in the internal space of the protective sleeve body, thereby ensuring that it will not hinder the installation of the protective sleeve body. When the protective sleeve body is attached to the outer wall of the hood body, the restriction on the installation sleeve is cancelled, and the stretched spring can drive the installation sleeve and the protective tube into the air outlet of the hood body. If the air outlet is blocked, the protective sleeve body can be easily removed.

[0016] (2) The utility model sets a protective component to respectively insert the two ends of the card frame into the two card slots of the two extension strips, thereby preventing the two cover bodies from tightly fitting together to form a whole state, thereby forming a comprehensive protection on the outside of the hood body, effectively preventing the hood body from being worn due to external factors, and then passing the bolts through the two ends of the bottom of the card frame, and then using nuts to close the bottom of the card frame, so that the connection state of the two cover bodies is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0019] Figure 3 It is a partial cross-sectional enlarged structural schematic diagram of the utility model;

[0020] Figure 4 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] In the figure: 1. Sheath body; 2. Reinforcement ring; 3. Hood body; 4. Connecting assembly; 5. Protective assembly; 401. Extension strip; 402. Slot; 403. Frame; 404. Bolt; 405. Nut; 501. Protective tube; 502. Mounting sleeve; 503. Spring; 504. Screw. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figure 2 and Figure 4 As shown, in this embodiment, a fluidized bed boiler hood anti-wear cover includes two jacket bodies 1, and is characterized in that: a same connecting component 4 is installed between the two jacket bodies 1, and the connecting component 4 includes four extension bars 401 fixedly connected on both sides of the two jacket bodies 1, and the two extension bars 401 on one side are symmetrically arranged and can fit each other, and a slot 402 is opened in the middle of the outer wall of one end of the two extension bars 401 on one side away from each other, and the two slots 402 on one side are slidably inserted with the same card frame 403, and the length of the card frame 403 is greater than the length of the card slot 402.

[0024] The same bolt 404 is slidably inserted at the bottom of the two card frames 403 , and the bolt 404 can penetrate the card frames 403 and extend outwards. One end of the two bolts 404 is threadedly connected with a nut 405 .

[0025] By turning the screw 504 through the knob, one end of the screw 504 will be squeezed along the mounting sleeve 502 toward the sleeve body 1, and it will be blocked by the sleeve body 1 and cannot move forward. As the screw 504 continues to rotate, the mounting sleeve 502 restricted by the two springs 503 will be driven by the screw 504 to move outward until the protective tube 501 inside the mounting sleeve 502 is no longer in the internal space of the sleeve body 1, thereby ensuring that it will not hinder the installation of the sleeve body 1. When the sleeve body 1 is attached to the outer wall of the hood body 3, the restriction on the mounting sleeve 502 is cancelled, and the stretched spring 503 can drive the mounting sleeve 502 and the protective tube 501 to enter the air outlet of the hood body 3. If the air outlet is blocked, the blocking can be easily handled by removing the sleeve body 1.

[0026] like Figure 2 and Figure 3 As shown, a matching hood body 3 is disposed inside the two sheath bodies 1 , and a plurality of air outlet holes on the circumferential outer wall of the hood body 3 correspond one to one with the plurality of air outlet holes of the two sheath bodies 1 .

[0027] A plurality of protective components 5 are installed on the circumferential outer walls of the two sheath bodies 1 , and the plurality of protective components 5 are respectively located outside the plurality of air outlets of the two sheath bodies 1 .

[0028] The protective component 5 includes a protective tube 501 which is slidably inserted into the air outlet of the sheath body 1, and the protective tube 501 can extend into the hood body 3. An installation sleeve 502 is fixedly provided on one end of the circumferential outer wall of the protective tube 501, and two springs 503 are fixedly connected between the installation sleeve 502 and the circumferential outer wall of the sheath body 1.

[0029] A screw rod 504 is threadedly connected to the bottom of the installation sleeve 502 , and the screw rod 504 can contact the outer wall of the sleeve body 1 .

[0030] Insert the two ends of the card frame 403 into the two card slots 402 of the two extension strips 401 respectively, so as to prevent the two cover bodies 1 from fitting tightly to form a whole state, thereby forming a comprehensive protection on the outside of the hood body 3, and effectively preventing the hood body 3 from being worn due to external factors. Then, pass the bolts 404 through the two ends of the bottom of the card frame 403, and then use the nuts 405 to close the bottom of the card frame 403, so that the connection state of the two cover bodies 1 is more stable.

[0031] like Figure 1 and Figure 2 As shown, a reinforcement ring 2 is provided at the bottom of the circumferential outer wall of the two jacket bodies 1, and the bottom outer walls of the two reinforcement rings 2 and the bottom outer walls of the jacket bodies 1 are at the same level. The jacket body 1 and the boiler can be connected by passing the connecting piece through the reinforcement ring 2, which is beneficial to further increase the stability of the jacket body 1.

[0032] The utility model provides a fluidized bed boiler hood anti-wear sleeve, the specific working principle is as follows:

[0033] When installing the device, firstly, the screw rod 504 is rotated by the knob, and one end of the screw rod 504 will be pressed toward the sheath body 1 along the installation sleeve 502, and it will be blocked by the sheath body 1 and cannot move forward. As the screw rod 504 continues to rotate, the installation sleeve 502 restricted by the two springs 503 will be driven by the screw rod 504 to move outward until the protective tube 501 inside the installation sleeve 502 is no longer in the internal space of the sheath body 1, thereby ensuring that it will not hinder the installation of the sheath body 1. When the sheath body 1 is attached to the outer wall of the hood body 3, the restriction on the installation sleeve 502 is cancelled, and the stretched spring 503 can drive the installation sleeve 502 And the protective tube 501 enters the air outlet of the hood body 3. If the air outlet is blocked, you only need to remove the sheath body 1 to easily deal with it, and then repeat the operation to install another sheath body 1, and then insert the two ends of the card frame 403 into the two card slots 402 of the two extension strips 401 respectively, so as to prevent the two sheath bodies 1 from fitting tightly to form a whole state, so as to form a comprehensive protection on the outside of the hood body 3, and effectively prevent the hood body 3 from being worn due to external factors, and then pass the bolts 404 through the two ends of the bottom of the card frame 403, and then use the nut 405 to close the bottom of the card frame 403, so that the connection state of the two sheath bodies 1 is more stable.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluidized bed boiler hood anti-wear sleeve, comprising two sleeve bodies (1), characterized in that: A same connection assembly (4) is installed between the two sheath bodies (1), and the connection assembly (4) comprises four extension bars (401) fixedly connected to the two sides of the two sheath bodies (1), the two extension bars (401) on one side are symmetrically arranged and can fit together, a card slot (402) is provided in the middle of the outer wall of one end of the two extension bars (401) away from each other, and the two card slots (402) on one side are slidably plugged with a same card frame (403), and the length of the card frame (403) is greater than the length of the card slot (402).

2. The anti-wear sleeve of the hood of a fluidized bed boiler according to claim 1, characterized in that: The bottom of the two clamping frames (403) is slidably plugged with a same bolt (404), and the bolt (404) can penetrate the clamping frames (403) and extend outwards, and one end of the two bolts (404) is threadedly connected with a nut (405).

3. The anti-wear sleeve of the hood of a fluidized bed boiler according to claim 1, characterized in that: A matching hood body (3) is arranged inside the two protective sleeve bodies (1), and a plurality of air outlet holes on the circumferential outer wall of the hood body (3) correspond one-to-one to the plurality of air outlet holes of the two protective sleeve bodies (1).

4. The anti-wear sleeve of the hood of a fluidized bed boiler according to claim 1, characterized in that: A plurality of protective components (5) are installed on the circumferential outer walls of the two sheath bodies (1), and the plurality of protective components (5) are respectively located outside the plurality of air outlet holes of the two sheath bodies (1).

5. The anti-wear sleeve of the hood of a fluidized bed boiler according to claim 4, characterized in that: The protective component (5) comprises a protective tube (501) which is slidably inserted into the air outlet of the protective sleeve body (1), and the protective tube (501) can extend into the hood body (3). A mounting sleeve (502) is fixedly mounted on one end of the circumferential outer wall of the protective tube (501), and two springs (503) are fixedly connected between the mounting sleeve (502) and the circumferential outer wall of the protective sleeve body (1).

6. The anti-wear sleeve of the hood of a fluidized bed boiler according to claim 5, characterized in that: A screw rod (504) is threadedly connected to the bottom of the installation sleeve (502), and the screw rod (504) is capable of contacting the outer wall of the sleeve body (1).

7. The anti-wear sleeve of the hood of a fluidized bed boiler according to claim 1, characterized in that: A reinforcement ring (2) is provided at the bottom of the circumferential outer wall of each of the two sheath bodies (1), and the bottom outer walls of the two reinforcement rings (2) and the bottom outer wall of the sheath body (1) are at the same level.

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