Boiler operation auxiliary apparatus

Abstract

The present invention relates to the technical field of power plant boilers, in particular to a boiler operation auxiliary apparatus, comprising: a connecting assembly, comprising a mounting component, an air inlet component provided at one end of the mounting component, and a switching component arranged inside the mounting component, wherein the connecting assembly is mounted on a boiler by means of the mounting component, and the air inlet component extends into the boiler for fly ash collection and sampling; an ash collecting assembly, comprising an operating component and a collecting component arranged at one end of the operating component, wherein the collecting component can slide within the air inlet component and the switching component, the collecting component is divided into a plurality of independent chambers, and fly ash is collected in the chambers. Once one chamber is done collecting, the collecting component is pulled into the switching component by means of the operating component, rotates in the switching component, and then slides into the air inlet component again, and another chamber is used for collecting ash. This allows the chambers to be switched at the same position in a short period of time to perform fly ash collection, thereby meeting testing requirements for pi-type boilers.

Description

Boiler operation auxiliary device TECHNICAL FIELD

[0001] The present application relates to the technical field of power plant boilers, in particular to a boiler operation auxiliary device. BACKGROUND

[0002] During the use of a boiler, it is very important to perform fly ash detection. Fly ash detection can help understand the combustion efficiency of the boiler, evaluate the operating condition of the boiler, and timely discover and handle possible problems. A π-type boiler, also known as a two-pass boiler, is named after its structure resembling the Greek letter π. This type of boiler is widely used in power plants and can adapt to different capacities, parameters, and various fuel requirements. Due to the use requirements of the π-type boiler, fly ash detection is needed, which can evaluate the combustion efficiency of the boiler, and the unburned carbon content in the fly ash is an important indicator of combustion efficiency.

[0003] The air flow inside a π-type boiler is relatively complex, mainly due to its structural characteristics. The flue gas flow of a π-type boiler usually includes multiple different areas, such as the furnace, horizontal flue, tail flue, etc., and the flue gas flow rate and fly ash concentration in each area may not be the same. Therefore, when performing fly ash sampling, many factors need to be considered, such as determining the sampling frequency and number of times according to the specific operating conditions of the boiler and the analysis purpose. In cases where the flue gas characteristics may change, the number of samplings may need to be increased to obtain more accurate data, and since the air flow inside the boiler is prone to change, it is necessary to ensure that multiple samplings are performed at the same sampling point and with a small time interval.

[0004] In view of the complexity of the air flow inside a π-type boiler and the need to ensure the same sampling point and minimize the time interval for multiple fly ash samplings, a boiler operation auxiliary device is designed. SUMMARY

[0005] In view of the problems existing in the prior art, the present application is proposed.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a boiler operation auxiliary device, comprising a connecting assembly, including a mounting member, an air inlet member arranged at one end of the mounting member, and a conversion member arranged inside the mounting member; and a fly ash collecting assembly, including an operating member and a collecting member arranged at one end of the operating member.

[0007] As a preferred scheme of the boiler operation auxiliary device, the mounting member includes a mounting cylinder, the outer wall of the mounting cylinder is provided with a connecting ring, the outer wall of the connecting ring is provided with a stepped hole, and the outer wall of the mounting cylinder is provided with a protective cover.

[0008] As a preferred scheme of the boiler operation auxiliary device, the outer wall of the installation cylinder is provided with an inlet, the outer wall of the inlet is in contact with the protective cover, the inner wall of the installation cylinder is provided with a rotating cylinder, and the inner wall of the rotating cylinder is provided with a receiving groove.

[0009] As a preferred scheme of the boiler operation auxiliary device, the air inlet member includes an air inlet cylinder arranged at one end of the installation cylinder, the side of the air inlet cylinder is provided with an air inlet, and the end of the air inlet cylinder away from the installation cylinder is provided with an air outlet.

[0010] As a preferred scheme of the boiler operation auxiliary device, the conversion member includes a conversion cylinder arranged in the installation cylinder, the outer wall of the conversion cylinder is provided with a sliding rod, the inner wall of the installation cylinder is provided with a sliding groove, and the outer wall of the sliding rod is in contact with the inner wall of the sliding groove.

[0011] As a preferred scheme of the boiler operation auxiliary device, the operation member includes a connecting rod arranged in the installation cylinder, and the end of the connecting rod away from the installation cylinder is provided with an operation ring.

[0012] As a preferred scheme of the boiler operation auxiliary device, the collection member includes an intermediate seat, the side of the intermediate seat is provided with a ventilation inclined groove, the outer wall of the intermediate seat is provided with an ash collection bin, the bottom of the ash collection bin is provided with an air outlet, and the top of the ash collection bin is provided with a cover.

[0013] As a preferred scheme of the boiler operation auxiliary device, the side of the cover is provided with a fixing groove, and the two sides of the fixing groove are provided with clamping grooves.

[0014] As a preferred scheme of the boiler operation auxiliary device, the top of the ash collection bin is provided with sliding cover grooves for the cover, one end of the ash collection bin is provided with a protruding clamping block, and the protruding clamping block is matched with the clamping groove.

[0015] As a preferred scheme of the boiler operation auxiliary device, the end of the air inlet cylinder close to the conversion cylinder is provided with a hook plate matched with the fixing groove.

[0016] The boiler operation auxiliary device has the advantages that the air inlet member can be inserted into the interior of the boiler to collect and sample fly ash, the conversion member can convert the component for collecting fly ash, and multiple sampling can be completed in the same position and in a short time interval. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort. Among them:

[0018] Fig. 1 is a schematic diagram of the overall structure in the present application.

[0019] Fig. 2 is a schematic diagram of the structure of the connecting assembly in the present application.

[0020] Fig. 3 is a schematic diagram of the structure of the operating member in the present application.

[0021] Fig. 4 is a schematic diagram of the structure of the conversion member in the present application.

[0022] Fig. 5 is a schematic diagram of the structure of the collecting member in the present application and a partial enlarged schematic diagram thereof.

[0023] Fig. 6 is a schematic diagram of the structure of the ventilation chute in the present application and a partial enlarged schematic diagram thereof. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other manners different from those described herein, and those skilled in the art can make similar generalizations without departing from the scope of the present application, therefore, the present application is not limited to the specific embodiments disclosed below.

[0026] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. The "in one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0027] Embodiment 1, referring to Figs. 1-2, is the first embodiment of the present application, which provides a boiler operation auxiliary device, comprising a connecting assembly 100, including a mounting member 101, an air inlet member 102 arranged at one end of the mounting member 101, and a conversion member 103 arranged inside the mounting member 101, the connecting assembly 100 is installed on the boiler by a mounting assembly, the air inlet member 102 extends into the inside of the boiler for fly ash collection and sampling, the conversion member 103 can convert the component for collecting fly ash, and complete multiple sampling in a short time interval at the same position; a fly ash collection assembly 200, including an operating member 201 and a collection member 202 arranged at one end of the operating member 201, the collection member 202 is the main structure for fly ash collection, and can slide in the air inlet member 102 and the conversion member 103, the collection member 202 is divided into multiple independent chambers, fly ash is collected into the chambers from the air inlet member 102, when one chamber is collected, the collection member 202 can be pulled into the conversion member 103 by operating the operating member 201, and after rotating in the conversion member 103, the collection member 202 is slid into the air inlet member 102 again, and another chamber is used for dust collection, which can collect fly ash by switching the chambers at the same position in a short time, and meets the detection requirements of the π-shaped boiler.

[0028] Specifically, the connecting assembly 100 is installed on the boiler by a mounting assembly, the air inlet member 102 extends into the inside of the boiler for fly ash collection and sampling, the collection member 202 is divided into multiple independent chambers, fly ash is collected into the chambers from the air inlet member 102, when one chamber is collected, the collection member 202 can be pulled into the conversion member 103 by operating the operating member 201, and after rotating in the conversion member 103, the collection member 202 is slid into the air inlet member 102 again, and another chamber is used for dust collection, which can collect fly ash by switching the chambers at the same position in a short time, and meets the detection requirements of the π-shaped boiler.

[0029] Embodiment 2, referring to Figs. 1-5, is the second embodiment of the present application, which is different from the previous embodiment in that the mounting member 101 includes a mounting cylinder 101a, the outer wall of the mounting cylinder 101a is provided with a connecting ring 101b, the outer wall of the connecting ring 101b is provided with a stepped hole 101c, the stepped hole 101c is used for installing a bolt, an opening with the same inner diameter as the outer diameter of the mounting cylinder 101a is formed on the outer wall of the boiler, the connecting assembly 100 is put into the boiler, and the connecting ring 101b and the entire connecting assembly 100 are installed on the boiler by the bolt, the outer wall of the mounting cylinder 101a is provided with a protective cover 101d, which needs to be closed during normal use.

[0030] Further, the outer wall of the mounting cylinder 101a is provided with an inlet 101e, the outer wall of the inlet 101e is in contact with the protective cover 101d, the inside of the mounting cylinder 101a is provided with a rotating cylinder 101f, the rotating cylinder 101f can rotate in the mounting cylinder 101a, the inner wall of the rotating cylinder 101f is provided with a containing groove 101g, the inner wall of the containing groove 101g is provided with a clamping strip 101h, and the clamping strip 101h can rotate in the containing groove 101g.

[0031] Further, the air inlet member 102 includes an air inlet cylinder 102a arranged at one end of the mounting cylinder 101a, the side of the air inlet cylinder 102a is provided with an air inlet 102b, in the boiler, the air inlet 102b side of the air inlet cylinder 102a faces the air flow at the sampling position, the end of the air inlet cylinder 102a away from the mounting cylinder 101a is provided with an air outlet 102c, the air flow in the boiler enters from the air inlet 102b of the air inlet cylinder 102a and is discharged from the air outlet 102c.

[0032] Further, the conversion member 103 includes a conversion cylinder 103a arranged in the inside of the mounting cylinder 101a, the outer wall of the conversion cylinder 103a is provided with a sliding rod 103b, the inner wall of the mounting cylinder 101a is provided with a sliding groove 101i, the outer wall of the sliding rod 103b is in contact with the inner wall of the sliding groove 101i, and the conversion cylinder 103a can rotate in the mounting cylinder 101a.

[0033] Further, the operating member 201 comprises a connecting rod 201a arranged inside the mounting cylinder 101a, an operating ring 201b is arranged at the end of the connecting rod 201a away from the mounting cylinder 101a, the collecting member 202 comprises an intermediate seat 202a, a ventilation chute 202b is arranged on the side of the intermediate seat 202a, an ash collecting bin 202c is arranged on the outer wall of the intermediate seat 202a, an air outlet hole 202d is arranged on the bottom of the ash collecting bin 202c, a cover 202e is arranged on the top of the ash collecting bin 202c, one end of the connecting rod 201a is fixedly connected with one end of the intermediate seat 202a, the operating ring 201b is located outside the boiler, the intermediate seat 202a can be rotated and slid by operating the operating ring 201b, before sampling, the intermediate seat 202a is pulled into the mounting cylinder 101a by operating the operating ring 201b, the protective cover 101d is opened, the empty ash collecting bin 202c is placed into the intermediate seat 202a, the ash collecting bin 202c is clamped by pulling the clamping strip 101h to prevent it from falling in the following movement, the intermediate seat 202a and the rotating bin cylinder 101f are rotated together by rotating the operating ring 201b, and the ash collecting bin 202c is placed into the intermediate seat 202a one by one, the intermediate seat 202a is pushed towards the conversion cylinder 103a by operating the operating ring 201b, the intermediate seat 202a passes through the conversion cylinder 103a and comes to the air inlet cylinder 102a, when entering the air inlet cylinder 102a, the cover 202e on the surface of the ash collecting bin 202c is intercepted by the air inlet cylinder 102a, the air flow enters the ash collecting bin 202c from the air inlet 102b, passes through the air outlet hole 202d, enters the ventilation chute 202b, and returns to the boiler from the air outlet 102c, the fly ash in the air flow that can be used for detection cannot pass through the air outlet hole 202d and stays in the ash collecting bin 202c, and the collection of fly ash is completed, at this time, the operating ring 201b is pulled back to pull the intermediate seat 202a back into the conversion cylinder 103a, at the same time, the cover 202e covers the ash collecting bin 202c again to save the fly ash in the ash collecting bin 202c, at this time, the intermediate seat 202a and the conversion cylinder 103a are rotated together by rotating the operating ring 201b to transport the new ash collecting bin 202c to the air inlet cylinder 102a, and the above steps can be repeated to perform fly ash sampling multiple times in a small time interval at the same position.

[0034] Specifically, the sampling operation operation ring 201b pulls the intermediate seat 202a into the installation cylinder 101a, opens the protective cover 101d, puts the empty dust collection bin 202c into the intermediate seat 202a, pulls the clamping strip 101h to clamp the dust collection bin 202c to prevent it from falling during the subsequent movement, rotates the operation ring 201b to drive the intermediate seat 202a and the rotating bin cylinder 101f to rotate together, and one by one puts the dust collection bin 202c into the intermediate seat 202a, and the operation ring 201b pushes the intermediate seat 202a towards the conversion cylinder 103a. The intermediate seat 202a passes through the conversion cylinder 103a to come to the air inlet cylinder 102a. When entering the air inlet cylinder 102a, the cover 202e on the surface of the dust collection bin 202c will be intercepted by the air inlet cylinder 102a. The air flow enters the dust collection bin 202c from the air inlet 102b, passes through the air outlet hole 202d, enters the ventilation chute 202b, and returns to the boiler from the air outlet 102c. The fly ash in the air flow that can be used for detection cannot pass through the air outlet hole 202d and stays in the dust collection bin 202c, completing the collection of fly ash. At this time, the operation ring 201b is pulled back to pull the intermediate seat 202a back into the conversion cylinder 103a. At the same time, the cover 202e covers the dust collection bin 202c again to save the fly ash in the dust collection bin 202c. At this time, rotating the operation ring 201b can drive the intermediate seat 202a and the conversion cylinder 103a to rotate together to transport the new dust collection bin 202c to the air inlet cylinder 102a. The above steps can be repeated to perform multiple fly ash sampling in the same position within a smaller time interval.

[0035] The third embodiment is shown in Figs. 1-6. The difference between the third embodiment and the second embodiment is that the side of the cover 202e is provided with a fixing slot 202f, the two sides of the fixing slot 202f are provided with a clamping slot 202g, the top of the dust collecting bin 202c is provided with a sliding cover slot 202i for the cover 202e to slide, one end of the dust collecting bin 202c is provided with a protruding clamping block 202h, the protruding clamping block 202h is matched with the clamping slot 202g, the end of the air inlet cylinder 102a close to the conversion cylinder 103a is provided with a hook plate 102d, the hook plate 102d is matched with the fixing slot 202f, when the middle seat 202a is slid towards the air inlet cylinder 102a by operating the operating ring 201b, the middle seat 202a is provided with a positioning plate for positioning the dust collecting bin 202c, the seat of the dust collecting bin 202c on the middle seat 202a is inclined, and the dust collecting bin 202c is also inclined, so that the middle seat 202a slides with the dust collecting bin 202c, when the dust collecting bin 202c slides with the middle seat 202a towards the air inlet cylinder 102a, the cover 202e is hooked by the hook plate 102d when it moves to the edge of the air inlet cylinder 102a, the hook plate 102d is clamped with the fixing slot 202f on the side of the cover 202e, the cover 202e is retained in the conversion cylinder 103a, the dust collecting bin 202c enters the air inlet cylinder 102a to collect dust, when the dust collection is completed, the middle seat 202a is brought back to the conversion cylinder 103a with the dust collecting bin 202c by operating the operating ring 201b to convert the dust collecting bin 202c, the protruding clamping block 202h on the dust collecting bin 202c slides and contacts the clamping slot 202g on the cover 202e, the cover 202e is covered back to the dust collecting bin 202c through the clamping slot 202g to protect the fly ash in the dust collecting bin 202c from falling during rotation, at the same time, during the dust collection process, when the air flow enters the air outlet k composed of the ventilation inclined slot 202b and the bottom of the dust collecting bin 202c from the bottom of the dust collecting bin 202c, the inclined bottom of the dust collecting bin 202c makes the end of the air outlet k close to the air outlet 102c larger than the end close to the conversion cylinder 103a, which is conducive to the air flow being discharged from the device, because there is air flow inside the boiler outside the air outlet 102c, the air flow outside the air outlet 102c has a large flow rate and a small air pressure, which forms a negative pressure in k, further promoting the discharge of the air flow, preventing the blockage due to the unsmooth discharge of fine dust in k, and prolonging the service life of the device.

[0036] Specifically, the sliding of the intermediate seat 202a with the dust collecting bin 202c will be caused by the operation of the operation ring 201b. When the dust collecting bin 202c slides with the intermediate seat 202a towards the air inlet tube 102a, the cover 202e will be hooked by the hook plate 102d at the edge of the air inlet tube 102a. The hook plate 102d is connected with the fixed groove 202f on the side of the cover 202e. The cover 202e stays in the conversion tube 103a. The dust collecting bin 202c enters the air inlet tube 102a to collect dust. When the dust collection is completed, the operation ring 201b will bring the intermediate seat 202a and the dust collecting bin 202c back to the conversion tube 103a for the conversion of the dust collecting bin 202c. During the sliding of the dust collecting bin 202c, the protruding clamping block 202h will contact the clamping groove 202g on the cover 202e. The cover 202e is covered back to the dust collecting bin 202c through the clamping groove 202g to protect the fly ash in the dust collecting bin 202c from falling during the rotation. At the same time, during the dust collection process, when the air flow enters the air outlet k composed of the ventilation chute 202b and the bottom of the dust collecting bin 202c from the bottom of the dust collecting bin 202c, the inclined bottom of the dust collecting bin 202c makes the end of the air outlet k close to the air outlet 102c larger than the end close to the conversion tube 103a, which is conducive to the discharge of the air flow from the device. Since there is air flow inside the boiler outside the air outlet 102c, the gas flow rate outside the air outlet 102c is large and the air pressure is small, which will form a negative pressure in k, further promoting the discharge of the air flow, preventing the blockage due to the unsmooth discharge of fine dust in k, and prolonging the service life of the device.

[0037] It is important to note that the construction and arrangement of the application shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review the present disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Thus, the foregoing description is by way of example only, and is not intended to be limiting. The application is limited only as defined in the following claims and equivalents thereto. The sequence of any process or method steps, or the order in which they are carried out, can be altered or re-ordered without departing from the scope of the application. Any "articles of manufacture" or "manufacturing" as described herein are intended to encompass structures constructed of a multitude of different physical elements or components. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the application as expressed in the appended claims. Accordingly, the application is not limited to particular embodiments described, but extends to various modifications and equivalents of the invention that fall within the scope of the following claims.

[0038] Also, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation can not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the application, or those unrelated to enabling the claimed application).

[0039] It should be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

[0040] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application but not limit the present application, and although the present application is described in detail with reference to the preferred embodiments, persons of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A boiler operation assisting device characterized by: include, The connecting assembly (100) includes a mounting member (101), an air inlet member (102) disposed at one end of the mounting member (101), and a conversion member (103) disposed inside the mounting member (101); The ash collection assembly (200) includes an operating member (201) and a collection member (202) disposed at one end of the operating member (201).

2. The boiler operation assist device according to claim 1, characterized by: The mounting component (101) includes a mounting cylinder (101a), the outer wall of the mounting cylinder (101a) is provided with a connecting ring (101b), the outer wall of the connecting ring (101b) is provided with a stepped hole (101c), and the outer wall of the mounting cylinder (101a) is provided with a protective cover (101d).

3. The boiler operation assisting device as claimed in claim 2, characterized by: The outer wall of the mounting cylinder (101a) is provided with an inlet (101e), the outer wall of the inlet (101e) is in contact with the protective cover (101d), the interior of the mounting cylinder (101a) is provided with a transfer cylinder (101f), the inner wall of the transfer cylinder (101f) is provided with a receiving groove (101g), and the inner wall of the receiving groove (101g) is provided with a retaining strip (101h).

4. The boiler operation assist device according to claim 3, characterized by: The air intake component (102) includes an air intake duct (102a) disposed at one end of the mounting cylinder (101a), an air inlet (102b) is provided on the side of the air intake duct (102a), and an air outlet (102c) is provided at the end of the air intake duct (102a) away from the mounting cylinder (101a).

5. The boiler operation assisting device as claimed in claim 4, characterized by: The conversion component (103) includes a conversion cylinder (103a) disposed inside the mounting cylinder (101a), a slide rod (103b) is provided on the outer wall of the conversion cylinder (103a), and a sliding groove (101i) is provided on the inner wall of the mounting cylinder (101a), with the outer wall of the slide rod (103b) in contact with the inner wall of the sliding groove (101i).

6. The boiler operation assist device according to claim 5, characterized by: The operating component (201) includes a connecting rod (201a) disposed inside the mounting cylinder (101a), and an operating ring (201b) is provided at the end of the connecting rod (201a) away from the mounting cylinder (101a).

7. The boiler operation assisting device as claimed in claim 6, characterized by: The collecting component (202) includes an intermediate seat (202a), a ventilation chute (202b) is provided on the side of the intermediate seat (202a), a dust collection bin (202c) is provided on the outer wall of the intermediate seat (202a), an air outlet (202d) is provided at the bottom of the dust collection bin (202c), and a cover (202e) is provided on the top of the dust collection bin (202c).

8. The boiler operation assist device according to claim 7, characterized by: The cover (202e) has a fixing groove (202f) on its side, and a slot (202g) is provided on both sides of the fixing groove (202f).

9. The boiler operation assisting device as claimed in claim 8, characterized by: The top two sides of the ash collection bin (202c) are provided with sliding cover grooves (202i) for the cover (202e) to slide. One end of the ash collection bin (202c) is provided with a protruding locking block (202h), which cooperates with the locking groove (202g).

10. The boiler operation assisting device as claimed in claim 9, characterized by: The air inlet cylinder (102a) is provided with a hook plate (102d) near one end of the conversion cylinder (103a), and the hook plate (102d) is matched with the fixed groove (202f).

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