Expansion compensation device with sealing performance

Abstract

The utility model relates to the technical field of boiler slag removal, and particularly discloses a sealing expansion compensation device which comprises a slag discharging pipe, a slag discharging hopper is installed at the bottom of the slag discharging pipe, and a compensation component is installed on the slag discharging hopper so as to achieve expansion movement of the slag discharging pipe. A sealing piece is further arranged between the slag discharging pipe and the slag discharging hopper and comprises a sealing gasket installed on the expansion component, and a positioning piece used for limiting the sealing gasket is arranged on the slag discharging pipe. The sealing gasket is installed between the slag discharging pipe and the compensation component, then the positioning piece on the slag discharging pipe is used for limiting the sealing gasket so that the sealing gasket can abut against the containing pipe, and therefore the effect of improving the sealing performance between the slag discharging pipe and the slag discharging hopper can be achieved; and raised dust cannot be discharged through the gap between the compensation component and the slag discharging pipe, so that the effect of protecting the environment is effectively achieved, and the practicability of the compensation device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler deslagging technical field, specifically is a kind of with sealing expansion compensation device. BACKGROUND

[0002] Boiler is a kind of energy conversion equipment, the energy input to boiler has chemical energy in fuel, electric energy, boiler exports have certain heat energy steam, high-temperature water or organic heat carrier.It is known that, when boiler is at low load, because the flow velocity of flue gas of boiler is lower, it leads to that ash particle in flue gas is deposited in large quantities on preheater tube sheet, when ash deposited on the surface tube sheet of preheater partially or entirely blocks pipe opening, the flow of flue gas through the pipe is reduced or interrupted, the heat of high-temperature flue gas heating pipe wall drops, leading to the temperature of pipe wall drops.When the temperature of the pipe is lower than the dew point temperature of flue gas (136 DEG C), flue gas in the pipe can condense, after flue gas condenses, it will cause ash agglomerate deposited in pipe opening.

[0003] Because ash in boiler can cause furnace contamination, slagging, corrosion and problems such as heating surface wear, affect the normal operation of boiler, ash must be effectively and timely removed.

[0004] Because slagging pipe is connected with boiler, there are two characteristics in operation, one is that it will have axial expansion after being heated, two is that slagging pipe will be displaced in radial direction due to outward expansion displacement of anti-swing device of boiler body, so the slagging opening of slagging pipe is connected with external slagging pipeline and equipment through expansion joint compensator.In prior art, such as the Chinese patent with application number 202320413665.X and authorized publication number CN219432748U, named "expansion joint compensator for boiler slagging pipe", the above patent discloses an expansion joint compensator for boiler slagging pipe, which comprises a body, a compensation assembly is arranged on the opening of the body, the slagging pipe is inserted into the body from the compensation assembly, the compensation assembly cooperates with the slagging pipe to meet the expansion change of the slagging pipe in axial and radial directions;the compensation assembly is composed of a fixed seat and two movable rings inserted into the fixed seat, the two movable rings are sleeved on the slagging pipe, and the movable rings cooperate with the fixed seat to form two layers of sealing.

[0005] The above patent can realize the free expansion of slagging pipe up and down, ensure that there is no slag spouting, and compensate the movement of slagging pipe in radial direction, to ensure the connection reliability of slagging process.However, it is known that ash in boiler is usually dry, when slagging pipe is used for slagging operation, therefore, a large amount of dust will be generated in small slag falling bucket, although the above patent can realize the effect of no slag spouting, but dust will leak from the gap between slagging pipe and expansion joint compensator, pollute the environment, and there is certain deficiency. UTILITY MODEL CONTENT

[0006] The utility model discloses a purpose at providing a kind of expansion compensation device with sealing, to solve the problems presented in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: an expansion compensation device with sealing, including slag discharge pipe, the slag discharge pipe bottom is installed with slag discharge hopper, the compensating component is installed on the slag discharge hopper, to realize the expansion movement of slag discharge pipe;And still be provided with sealing element between slag discharge pipe and slag discharge hopper, the sealing element includes the sealing gasket installed on expansion component, the positioning element for limiting sealing gasket is provided on the slag discharge pipe, so that sealing gasket and placement pipe abut.

[0008] Further, the positioning element includes mounting bracket fixedly connected on the slag discharge pipe, mounting bracket is provided with bolt, the bottom of the bolt is provided with a positioning seat in contact with sealing gasket.

[0009] Further, the mounting bracket is located on the upside of sealing gasket, and the mounting bracket and sealing gasket abut.

[0010] Further, the bolt is rotatably connected with the mounting bracket, and the positioning seat is threadedly connected with the bolt.

[0011] Further, the sealing gasket is of flexible material.

[0012] Further, the compensating component includes first movable ring, second movable ring installed on the slag discharge pipe, the slag discharge hopper is provided with the adaptation part matched with the first movable ring and the second movable ring, so that the slag discharge pipe drives the first movable ring and the second movable ring to slide inside.

[0013] Further, the adaptation part includes first ring body, second ring body and third ring body, the first ring body and the second ring body form the first matching groove, and the first movable ring is slidably connected in the first matching groove;The second ring body and the third ring body form the second matching groove, and the second movable ring is slidably connected in the second matching groove.

[0014] Further, the first ring body, the second ring body and the third ring body are connected through threaded part.

[0015] Further, the first ring body and the second ring body are provided with ash hole.

[0016] Further, the bottom of the slag discharge hopper is conical.

[0017] Compared with the prior art, the beneficial effect of the utility model is: this has the sealing expansion compensation device, when working, first install the sealing gasket between the slag discharge pipe and the compensation component, then use the positioning piece on the slag discharge pipe to limit the sealing gasket, so that the sealing gasket is in abutment with the placing pipe, thereby the effect of improving the sealing property between the slag discharge pipe and the slag discharge hopper can be achieved, at this moment, the dust raised by the ash in the slag discharge pipe entering the slag discharge hopper cannot be discharged through the gap between the compensation component and the slag discharge pipe, but can only stay in the slag discharge hopper and wait for subsequent processing, thereby the effect of protecting the environment can be effectively achieved, thereby the practicality of the compensation device can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0019] Figure 1 The sealing member installation method structure schematic diagram provided by the utility model embodiment is shown in the figure.

[0020] Figure 2 The Figure 1 The A area amplification structure schematic diagram is shown in the figure.

[0021] Figure 3 The compensation component installation method structure schematic diagram provided by the utility model embodiment is shown in the figure.

[0022] The figure mark explanation: 1, slag discharge pipe; 2, slag discharge hopper; 3, mounting frame; 4, positioning seat; 5, bolt; 6, sealing gasket; 7, second movable ring; 8, first movable ring; 9, third ring body; 10, first ring body; 11, second ring body; 12, first matching groove; 13, second matching groove; 14, ash discharge hole. DETAILED DESCRIPTION

[0023] The technical solutions in the utility model embodiments will be described clearly and completely below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] Please refer to Figures 1-3The utility model provides a technical scheme: a kind of expansion compensation device with sealing, including slag discharge pipe 1, slag discharge pipe 1 bottom is equipped with slag discharge hopper 2, and the expansion compensation device is equipped with sealing element between slag discharge pipe 1 and slag discharge hopper 2, so as to improve the sealing between slag discharge pipe 1 and slag discharge hopper 2, avoid the dust in ash and slag from the gap between compensation component and slag discharge pipe 1 discharge.

[0025] Specifically, the expansion compensation device with sealing includes a slag discharge pipe 1, wherein the slag discharge pipe 1 is connected to an external valve for boiler slagging operation. The slag discharge pipe 1 is equipped with a slag discharge hopper 2 at the bottom for easy collection of ash and slag. The slag discharge hopper 2 is equipped with a compensation component to realize the expansion movement of the slag discharge pipe 1, ensuring the connection reliability of the slagging process and meeting the work requirements. The sealing element is provided between the slag discharge pipe 1 and the slag discharge hopper 2, thereby improving the sealing between the slag discharge pipe 1 and the slag discharge hopper 2 and preventing the dust in the ash and slag from being discharged from the gap between the compensation component and the slag discharge pipe 1. The sealing element includes a sealing gasket 6 installed on the expansion component, and the slag discharge pipe 1 is provided with a positioning element for limiting the sealing gasket 6, so that the sealing gasket 6 abuts against the pipe. Therefore, during use, the sealing gasket 6 is first installed between the slag discharge pipe 1 and the compensation component, and then the positioning element on the slag discharge pipe 1 is used to limit the sealing gasket 6, so that the sealing gasket 6 abuts against the pipe. This improves the sealing between the slag discharge pipe 1 and the slag discharge hopper 2, and the dust raised when the ash and slag in the slag discharge pipe 1 enter the slag discharge hopper 2 cannot be discharged through the gap between the compensation component and the slag discharge pipe 1, but can only be retained in the slag discharge hopper 2 for subsequent treatment, thereby effectively protecting the environment and improving the practicality of the compensation device.

[0026] In the embodiments provided by the utility model, the positioning element includes a mounting bracket 3 fixedly connected to the slag discharge pipe 1, and the mounting bracket 3 is provided with a bolt 5, and the bottom of the bolt 5 is provided with a positioning seat 4 in contact with the sealing gasket 6, thereby improving the stability of the sealing gasket 6 during installation. Specifically, the positioning seat 4 is located on the side of the sealing gasket 6 away from the slag discharge pipe 1.

[0027] In the embodiments provided by the utility model, the mounting bracket 3 is located on the upper side of the sealing gasket 6, and the mounting bracket 3 abuts against the sealing gasket 6, thereby allowing the sealing gasket 6 to be positioned twice and avoiding the sealing gasket 6 from falling off.

[0028] In the embodiment of the utility model, bolt 5 is rotatably connected with mounting frame 3, and positioning seat 4 is threadedly connected with bolt 5, when it is necessary to install sealing gasket 6, bolt 5 is driven to rotate, so that positioning seat 4 slides upward by a certain stroke and leaves enough space to facilitate the installation of sealing gasket 6, after installation is completed, bolt 5 is driven to rotate again, so that positioning seat 4 slides downward to limit sealing gasket 6, thereby the stability during installation of sealing gasket 6 can be improved.

[0029] In the embodiment of the utility model, sealing gasket 6 is of flexible material, and the sealing effect of sealing gasket 6 is further improved.

[0030] In the embodiment of the utility model, the compensation component comprises a first movable ring 8 and a second movable ring 7 installed on the slag discharging pipe 1, and the slag discharging hopper 2 is provided with an adaptive part adapted to the first movable ring 8 and the second movable ring 7, so that the first movable ring 8 and the second movable ring 7 are driven to slide inside the slag discharging pipe 1, in the embodiment of the utility model, the adaptive part comprises a first ring body 10, a second ring body 11 and a third ring body 9, a first matching groove 12 is formed between the first ring body 10 and the second ring body 11, and the first movable ring 8 is slidably connected in the first matching groove 12; a second matching groove 13 is formed between the second ring body 11 and the third ring body 9, and the second movable ring 7 is slidably connected in the second matching groove 13, the first ring body 10, the second ring body 11 and the third ring body 9 are connected through a threaded part, and the first ring body 10 at the bottom can be fixedly connected to the slag discharging hopper 2 through welding. Dust holes 14 are formed in the first ring body 10 and the second ring body 11.

[0031] Specifically, the first movable ring 8 is placed in the first matching groove 12, the second movable ring 7 is placed in the second matching groove 13, the slag discharging pipe 1 is inserted into the first movable ring 8 and the second movable ring 7, and the sizes of the first movable ring 8 and the second movable ring 7 are adapted to the size of the slag discharging pipe 1; the inner diameters of the first matching groove 12 and the second matching groove 13 are greater than the outer diameters of the first movable ring 8 and the second movable ring 7, so that the first movable ring 8 and the second movable ring 7 can slide along the first matching groove 12 and the second matching groove 13 in the radial direction respectively, and the radial movement of the slag discharging pipe 1 is compensated by the sliding movement. Since the first movable ring 8 and the second movable ring 7 are movably matched with the first matching groove 12 and the second matching groove 13, the axial expansion movement can be realized, and since the first movable ring 8 and the second movable ring 7 are movably matched with the fixed seat through the clamping groove, the radial movement can be realized, so that the radial movement of the slag discharging pipe 1 can be compensated. Since the dust discharging holes are formed in the first matching groove 12 and the second matching groove 13, the fine dust brought in during the sliding process can be discharged in time through the dust discharging holes, and the jamming condition is not prone to occur.

[0032] Specifically, the first movable ring 8, the second movable ring 7, the first ring body 10, the second ring body 11, the third ring body 9, the first matching groove 12 and the second matching groove 13 can also be elliptical, thus being able to solve the problem of large lateral displacement of side slag discharge.

[0033] In the embodiments of the utility model, the bottom of the slag discharge hopper 2 is conical, facilitating subsequent treatment of the ash residue.

[0034] In the description of the utility model, it should be explained that, unless explicitly defined and limited, the terms "mounting", "provided with", "connection" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sealed expansion compensation device, comprising a slag tapping pipe (1), wherein a slag tapping bucket (2) is installed at the bottom of the slag tapping pipe (1), characterized in that: a compensation component is installed on the slag tapping bucket (2) to realize the expansion movement of the slag tapping pipe (1); a sealing element is further arranged between the slag tapping pipe (1) and the slag tapping bucket (2); the sealing element comprises a sealing gasket (6) installed on the expansion component, and the slag tapping pipe (1) is provided with a positioning element for limiting the sealing gasket (6) so that the sealing gasket (6) abuts against the slag tapping pipe. The positioning element comprises a mounting bracket (3) fixedly connected to the slag tapping pipe (1), and a bolt (5) is arranged on the mounting bracket (3), wherein a positioning seat (4) in contact with the sealing gasket (6) is arranged at the bottom of the bolt (5). The mounting bracket (3) is located above the sealing gasket (6), and the mounting bracket (3) abuts against the sealing gasket (6). The bolt (5) is rotationally connected to the mounting bracket (3), and the positioning seat (4) is threadedly connected to the bolt (5).

2. A sealing and expansion compensator according to claim 1, characterized in that: The sealing gasket (6) is made of flexible material.

3. A sealing and expansion compensator according to claim 2, wherein: The compensation component comprises a first movable ring (8) and a second movable ring (7) installed on the slag tapping pipe (1), and the slag tapping bucket (2) is provided with an adaptive part matched with the first movable ring (8) and the second movable ring (7) to enable the slag tapping pipe (1) to drive the first movable ring (8) and the second movable ring (7) to slide internally.

4. A sealing and expansion compensator according to claim 2, wherein: The adaptive part comprises a first ring body (10), a second ring body (11), and a third ring body (9), wherein a first matching groove (12) is formed between the first ring body (10) and the second ring body (11), and the first movable ring (8) is slidingly connected in the first matching groove (12); 5. The sealing and expansion compensator of claim 1, wherein: A second matching groove (13) is formed between the second ring body (11) and the third ring body (9), and the second movable ring (7) is slidingly connected in the second matching groove (13).

6. A sealing and expansion compensator according to claim 2, wherein: The first ring body (10), the second ring body (11), and the third ring body (9) are connected by a threaded element.

7. A sealing and expansion compensator according to claim 6, wherein: The first ring body (10) and the second ring body (11) are provided with ash holes (14). The bottom of the slag tapping bucket (2) is conical.

8. A sealing and expansion compensator according to claim 7, wherein: ​ 9. A sealing and expansion compensator according to claim 7, wherein: ​ 10. The sealing and expansion compensator of claim 1, wherein: ​

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