Internal tightening type ash removal opening device

Abstract

The utility model discloses an internally-tight ash removal opening device which comprises a connecting pipe made of a high-temperature-resistant material, a sealing cover, a clamping plate and a connecting rod, and two symmetrically-arranged inner bosses are arranged on the inner side of an opening in one side of the connecting pipe; the sealing cover covers an opening in one side of the connecting pipe; the clamping plate is located in the opening in one side of the connecting pipe, and the clamping plate is provided with two clamping parts corresponding to the inner bosses respectively; the connecting rod penetrates through the sealing cover, extends into the connecting pipe and fixes the clamping plate, and the connecting rod can drive the clamping plate to rotate relative to the opening in one side of the connecting pipe, so that the two clamping parts are clamped into or separated from the two inner bosses at the same time. The connecting rod is rotated reversely / clockwise, so that the clamping plate is driven to rotate relative to the opening in one side of the connecting pipe, the clamping part on the clamping plate is clamped into or separated from the two inner bosses at the same time, and the device is simple in structure, convenient to disassemble and use and capable of rapidly closing or opening the ash removal opening.

Description

Technical Field

[0001] The present application belongs to the field of chemical technology and relates to a fire tube waste heat boiler, specifically, an inner tight ash cleaning port device in a smoke box of a fire tube waste heat boiler which requires high frequency opening / closing. Background Art

[0002] As energy becomes increasingly scarce, waste heat boilers have been widely used to achieve energy recycling. In industries such as sulfur-containing wastewater acid production, a large amount of high and medium temperature waste gas is generated during the production process. Since the waste gas contains a large amount of dust and salt, when the fire tube waste heat boiler is used to recover this part of the waste heat, when the flue gas passes through the inner wall of the smoke tube of the fire tube waste heat boiler, dust and salt are easy to adhere to and scale on the inner wall of the smoke tube. Therefore, it is necessary to open / close the ash cleaning port device in the inlet (or outlet) smoke box of the fire tube waste heat boiler at a high frequency to remove impurities such as ash and scale attached to the inner wall of the smoke tube.

[0003] Since the ash cleaning port device in the smoke box needs to be opened / closed at a high frequency and the smoke temperature in the smoke box is high, the ash cleaning port device of the conventional structure is not sensitive enough to open / close, and the ash cleaning efficiency is low. Summary of the invention

[0004] In order to solve the problem in the prior art that the opening / closing of the cleaning port device is not sensitive enough under high-temperature flue gas, resulting in low cleaning efficiency, the present application provides an internally tightened cleaning port device that can improve the cleaning efficiency under high-temperature flue gas.

[0005] In order to achieve the above technical objectives, the technical solutions adopted in this application are as follows:

[0006] An internally tightened dust cleaning port device, comprising:

[0007] A pipe, wherein the inner side of one opening of the pipe is provided with two symmetrically arranged inner bosses;

[0008] A sealing cover, which covers an opening on one side of the connecting pipe;

[0009] A clamping plate, which is located in one side opening of the connecting pipe, and has two clamping parts respectively corresponding to the inner bosses;

[0010] A connecting rod, which penetrates the sealing cover and extends into the pipe and fixes the clamping plate, and the connecting rod can drive the clamping plate to rotate relative to an opening on one side of the pipe, so that the two clamping parts are simultaneously clamped into or separated from the two inner bosses;

[0011] The connecting pipe, sealing cover, clamping plate and connecting rod are all made of high temperature resistant materials.

[0012] The ash cleaning port device of the above-mentioned embodiment is capable of operating under high-temperature flue gas because the connecting rod, sealing cover, clamping plate and connecting rod are all made of high-temperature resistant materials. When in use, the clamping plate is driven to rotate relative to an opening on one side of the connecting pipe by rotating the connecting rod counterclockwise / clockwise, so that the two engaging parts are disengaged from the two inner bosses at the same time, thereby opening the ash cleaning port. After the ash cleaning is completed, the engaging part is extended through the gap between the inner bosses to a position lower than the inner bosses, and the connecting rod is rotated to drive the clamping plate to rotate relative to an opening on one side of the connecting pipe, so that the two engaging parts are simultaneously rotated to below the two inner bosses, thereby closing the ash cleaning port.

[0013] Preferably, a sealing groove is provided at the end of the sealing cover that is open toward one side of the connecting pipe, and a high temperature resistant sealing gasket is embedded in the sealing groove. The above definition can improve the sealing performance between the sealing cover and the connecting pipe.

[0014] Preferably, a high temperature resistant handle is provided at the other end of the connecting rod facing away from the sealing cover, and the connecting rod can be driven to rotate by rotating the handle, which saves more effort in operation.

[0015] Preferably, each inner boss forms an arc segment, and the corresponding central angle α ranges from 30° to 80°, each engaging portion is in a fan shape that fits the inner wall of the pipe, and the central angle β corresponding to each engaging portion is less than α. The above definition makes the arc length of each engaging portion less than the arc length of the inner boss, so that even if the engaging portion rotates clockwise / counterclockwise by a certain angle, the engaging portion will not separate from the inner boss.

[0016] Preferably, the bottom surface of the inner boss has an inclination angle γ in the range of 2° to 10°. The inner boss with a certain inclination angle can improve the tightness of the engagement with the engagement portion and avoid looseness.

[0017] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings exemplarily illustrate the embodiments and constitute a part of the specification, and together with the text description of the specification, are used to explain the exemplary implementation of the embodiments. The embodiments shown are for illustrative purposes only and do not limit the scope of the claims. In all drawings, the same reference numerals refer to similar but not necessarily identical elements.

[0019] Figure 1 This is a main cross-sectional view of an embodiment of an inner-tightening dust cleaning port device of the present application;

[0020] Figure 2 for Figure 1 AA section view;

[0021] Figure 3 is a schematic diagram of the structure of the sealing cover;

[0022] Figure 4 Schematic diagram of a top view of a pallet;

[0023] Figure 5 It is a top view of the pipe;

[0024] Figure 6 It is a cross-sectional schematic diagram of the pipe;

[0025] Figure 7 for Figure 5 BB cross-sectional view.

[0026] Markings in the figure: 1-connecting pipe, 11-inner boss, 12-first opening, 13-second opening, 2-sealing cover, 21-sealing groove, 22-sealing gasket, 3-clamping plate, 31-clamping part, 4-connecting rod, 5-handle. DETAILED DESCRIPTION

[0027] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope of the present disclosure. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0028] In the present disclosure, unless otherwise specified, the use of the terms "first", "second", etc. to describe various elements is not intended to limit the positional relationship, timing relationship, or importance relationship of these elements, and such terms are only used to distinguish one element from another element. In some examples, the first element and the second element may refer to the same instance of the element, and in some cases, based on the description of the context, they may also refer to different instances.

[0029] The terms used in the description of various examples in the present disclosure are only for the purpose of describing specific examples and are not intended to be limiting. Unless the context clearly indicates otherwise, if the number of elements is not specifically limited, the element may be one or more.

[0030] like Figure 1-6 As shown, this embodiment provides an inner-tightening cleaning port device, including a cylindrical connecting pipe 1, with a first opening 12 and a second opening 13 at both ends, wherein the first opening 12 is connected to the sealing plate of the boiler smoke box, and the second opening 13 forms an outward cleaning port, and two symmetrically arranged inner bosses 11 are provided on the inner side surface near the second opening 13 of the connecting pipe 1.

[0031] A sealing cover 2 covering one side of the pipe 1 is provided at the second opening 13 , and a clamping plate 3 is provided on the inner side of the sealing cover 2 facing the second opening 13 of the pipe 1 . The clamping plate 3 is symmetrically provided with two clamping parts 31 corresponding to the inner bosses 11 .

[0032] A connecting rod 4 is provided on the sealing cover 2, one end of which passes through the sealing cover 2 and extends into the pipe 1 and is fixedly connected to the center of the clamping plate 3. When the connecting rod 4 is rotated, it can drive the clamping plate 3 to rotate relative to the second opening 13, so that the two clamping parts 31 are simultaneously clamped in or out of the two inner bosses 11.

[0033] It should be noted that the connecting rod 4 and the sealing cover 2 can be fixedly penetrated or movably penetrated, but the movable penetration is limited to the rotational movement of the connecting rod 4 relative to the sealing cover 2, and the connecting rod 4 cannot move in the penetration direction relative to the sealing cover 2. When the connecting rod 4 and the sealing cover 2 are fixedly penetrated, the connecting rod 4 drives the sealing cover 2 and the clamping plate 3 to rotate together when rotating, and when the connecting rod 4 rotates and penetrates relative to the sealing cover 2, the rotation of the connecting rod 4 does not drive the sealing cover 2 to rotate together, as long as the connecting rod 4 drives the clamping plate 3 to rotate, and the connecting rod 4 cannot move in the penetration direction relative to the sealing cover 2 to ensure that when the clamping portion 31 is clamped into the inner boss 11, the sealing cover 2 just covers the port of the second opening 13.

[0034] Specifically, in order to save labor in operation, a handle 5 for driving the connecting rod 4 to rotate can be provided on the connecting rod 4 outside the sealing cover 2, so that the operating handle 5 plays the effect of lever labor saving. More preferably, the handle 5 can be arranged in the middle of the connecting rod 4, or at the other end of the connecting rod 4 away from the sealing cover 2.

[0035] In order to enable the entire inner-tight ash cleaning port device to work under high-temperature flue gas, the entire device needs to use high-temperature resistant materials. The specific material selection can be selected according to the temperature range of the flue gas. In this embodiment, considering the high temperature of the flue gas, steel is selected for processing. For example, the sealing cover 2 and the clamping plate 3 are machined from high-temperature resistant steel plates, the connecting pipe 1 is machined from high-temperature resistant pipes or bars, and the connecting rod 4 is made of high-temperature resistant steel pipes.

[0036] When in use, by rotating the connecting rod 4 counterclockwise / clockwise, the clamping plate 3 is driven to rotate relative to the opening on one side of the connecting pipe 1, so that the two clamping parts 31 are simultaneously disengaged from the two inner bosses 11, thereby opening the cleaning port. After the cleaning is completed, the clamping part 31 is extended through the gap between the inner bosses 11 to a position lower than the inner bosses 11, and by rotating the connecting rod 4, the clamping plate 3 is driven to rotate relative to the opening on one side of the connecting pipe 1, so that the two clamping parts 31 are simultaneously rotated to below the two inner bosses 11, thereby closing the cleaning port.

[0037] In another embodiment, if Figure 1 , Figure 3As shown, an annular sealing groove 21 is provided at the end of the connecting pipe 1 facing the second opening 13 of the sealing cover 2 , and a high temperature resistant annular sealing gasket 22 is embedded in the sealing groove 21 , thereby improving the sealing effect between the sealing cover 2 and the connecting pipe 1 .

[0038] In another embodiment, if Figure 4 As shown, fan-shaped engaging portions 31 that fit the inner wall of the connecting pipe 1 are provided on opposite sides of the clamping plate 3 , and each engaging portion 31 corresponds to a central angle β.

[0039] participate Figure 5 and Figure 6 Each inner boss 11 forms an arc segment, and the central angle of the arc segment is α. In order to prevent the clamping portion 31 from accidentally detaching from the inner boss 11 when the clamping plate 3 rotates at a small angle, the arc segment length of the clamping portion 31 is preferably smaller than the arc segment length of the inner boss 11, that is, β is smaller than α. Specifically, α is preferably in the range of 30° to 80°, and β is preferably in the range of 10° to 60°.

[0040] In another embodiment, if Figure 7 As shown, taking into account the problem that the engaging portion 31 and the inner boss 11 are prone to loosening, resulting in the engaging portion 31 being separated from the inner boss 11, this embodiment stipulates that the bottom surface of the inner boss 11 has an inclination angle γ from one side of the arc segment to the other side, and γ is preferably in the range of 2° to 10°, which can improve the engaging tightness between the engaging portion 31 and the inner boss 11.

[0041] The above is a detailed introduction to an internally tightened dust removal device provided by the present application. The description of the specific embodiment is only used to help understand the method and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An internally tightened dust cleaning port device, characterized in that: include: A pipe, wherein the inner side of one opening of the pipe is provided with two symmetrically arranged inner bosses; A sealing cover, which covers an opening on one side of the connecting pipe; A clamping plate, which is located in one side opening of the connecting pipe, and has two clamping parts respectively corresponding to the inner bosses; A connecting rod, which penetrates the sealing cover and extends into the pipe and fixes the clamping plate, and the connecting rod can drive the clamping plate to rotate relative to an opening on one side of the pipe, so that the two clamping parts are simultaneously clamped into or separated from the two inner bosses; The connecting pipe, sealing cover, clamping plate and connecting rod are all made of high temperature resistant materials.

2. The inner-tightening dust cleaning port device according to claim 1, characterized in that: A sealing groove is provided at the end of the sealing cover which is open toward one side of the connecting pipe, and a high temperature resistant sealing gasket is embedded in the sealing groove.

3. An internally tightened dust cleaning port device according to claim 1 or 2, characterized in that: The other end of the connecting rod facing away from the sealing cover is provided with a high temperature resistant handle.

4. The inner-tightening dust cleaning port device according to claim 1, characterized in that: Each inner boss forms an arc segment, and the corresponding central angle α ranges from 30° to 80°. Each engaging portion is in a fan shape that fits the inner wall of the pipe, and the central angle β corresponding to each engaging portion is smaller than α.

5. The inner-tightening dust cleaning port device according to claim 1, characterized in that: The bottom surface of the inner boss has an inclination angle γ ranging from 2° to 10°.

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