A blowdown structure and a waste heat power generation boiler

Abstract

The utility model relates to waste heat power generation technical field, concretely is a kind of blowdown structure and waste heat power generation boiler, including boiler body, the middle position of one end of boiler body is fixedly installed with connecting pipe, the bottom end of connecting pipe is fixedly connected with the discharge assembly for driving pulp discharge for discharging slag, the discharge assembly includes the discharge communication pipe of fixed intercommunication in the bottom end of connecting pipe, the one side of discharge communication pipe is provided with discharge cleaning assembly, and the discharge cleaning assembly includes the multiple spray-washing heads of equal-distance distribution on the inner wall of discharge communication pipe and is penetrated, the utility model discloses the setting of discharge assembly can conveniently transport and discharge treatment to the scale and water slag of discharge, so as to avoid the situation that scale and water slag are prone to appear scale and water slag discharge blockage when discharging, simultaneously, by the water that spray-washing head sprays, can prevent blockage and promote the discharge of slag, and the input end of pressurized water pump needs external water supply system, provides sufficient water quantity for the flushing of device.

Description

Technical Field

[0001] This utility model relates to the field of waste heat power generation technology, specifically a sewage discharge structure and a waste heat power generation boiler. Background Technology

[0002] Water is the primary working fluid in boilers. During boiler operation, the boiler feedwater concentration increases due to evaporation and concentration, resulting in scale and slag formation. Therefore, ensuring that both boiler feedwater and boiler water meet water quality standards is fundamental for safe and energy-efficient boiler operation. Industrial boiler feedwater typically undergoes only simple ion exchange softening treatment. Softened water still contains certain levels of metal cations such as Ca2+, Mg2+, Fe2+, and Mn2+, as well as anions such as Cl-, SO42-, SiO32-, and HCO3-. These impurity ions undergo various chemical reactions during boiler water heating, including thermal decomposition and concentration. In severe cases, this can lead to scaling (a 1mm scale layer can increase fuel consumption by 7%), corrosion, and changes in steam quality, jeopardizing boiler operation and reducing equipment lifespan.

[0003] A search revealed a novel automatic blowdown device for a waste heat power generation boiler, application number 202420287495.X. This device includes blowdown pipes, a control system, a detection device, a sampling pipe, and electric valves. Several blowdown pipes are connected to the waste heat boiler, as are the sampling pipes. Each blowdown pipe is equipped with an electric valve, and the detection device is connected to the sampling pipe. Both the electric valves and the detection device are electrically connected to the control system. The electric valves open sequentially and cyclically. The detection device reflects the state of the boiler water in real time. When impurities in the boiler increase to a certain value, the detection device sends a feedback signal to the control system, which then controls the electric valves on each blowdown pipe to open sequentially and cyclically for blowdown. This invention eliminates cumbersome manual processes, reduces the labor intensity of operators, greatly improves blowdown efficiency, and ensures the safe operation of the boiler equipment.

[0004] In the above technical solution, during automatic sewage discharge, the control system controls the electric valves on each sewage pipe to open sequentially for sewage discharge. However, this method cannot clean the sewage pipes after sewage discharge. After long-term use, a large amount of dirt will remain in the sewage pipes, which will affect the performance of the sewage pipes. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In the aforementioned existing technology, during automatic sewage discharge, the control system controls the electric valves on each sewage pipe to open sequentially and cyclically for sewage discharge. However, this method cannot clean the sewage pipes after sewage discharge, and after long-term use, a large amount of dirt will remain in the sewage pipes, thus affecting the performance of the sewage pipes.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A sewage discharge structure includes a boiler body, a connecting pipe is fixedly installed at the middle position of one end of the boiler body, and a slag discharge component for driving pulp discharge is fixedly connected to the bottom end of the connecting pipe. The slag discharge assembly includes a slag discharge connecting pipe fixedly connected to the bottom end of the connecting pipe. A slag discharge cleaning assembly is provided on one side of the slag discharge connecting pipe. The slag discharge cleaning assembly includes multiple spray heads that are equidistantly distributed on the inner wall of the slag discharge connecting pipe.

[0008] As a further embodiment of this utility model: a drive motor is fixedly installed at the top end of the slag discharge connecting pipe, and a transmission shaft is fixedly installed through the top surface of the slag discharge connecting pipe at the output end of the drive motor, and conveying blades are fixedly installed on the outer wall of the transmission shaft.

[0009] As a further embodiment of this utility model: a closed control component is provided on the bottom end face of the boiler body, the closed control component includes a mounting base fixedly installed on the bottom end face of the boiler body, and the connecting pipe passes through the interior of the mounting base.

[0010] As a further embodiment of this utility model: the closed control component includes an electric push rod fixedly installed at the front end of the bottom end of the boiler body, and a sealing plate is fixedly installed at the output end of the electric push rod.

[0011] As a further improvement of this utility model: the connecting pipe and the mounting base are provided with a limiting track that matches the shape of the sealing plate, and the sealing plate is slidably connected to the connecting pipe and the mounting base through the limiting track.

[0012] As a further embodiment of this utility model: the slag removal and cleaning component includes a pressurized water pump fixedly installed at the rear end of the bottom face of the boiler body, and the output end of the pressurized water pump is connected to a main delivery pipe.

[0013] As a further embodiment of this utility model: the output end of the conveying main pipe is fixedly connected to a fixed pipe, and the fixed pipe is fixedly installed on the outer wall of the slag discharge connecting pipe.

[0014] As a further improvement of this utility model: the spray head and the fixed pipe are interconnected, and the end face of the spray head away from the fixed pipe is flush with the inner wall end face of the slag discharge connecting pipe. This utility model also provides a waste heat power generation boiler, including the aforementioned sewage discharge structure. The boiler body has a detection and control component both inside and outside, and the detection and control component includes a controller fixedly installed on one end face of the boiler body.

[0015] As a further embodiment of this utility model: an alkalinity detection sensor and a chloride ion concentration detection sensor are embedded in the bottom surface of the boiler body, and the alkalinity detection sensor and the chloride ion concentration detection sensor are electrically connected to the controller through wires.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model can facilitate the transportation and discharge of scale and sludge through the setting of the sludge discharge component. This can avoid the blockage of scale and sludge discharge during the discharge process, which would affect the speed and efficiency of scale and sludge discharge. At the same time, the water sprayed by the spray head can prevent blockage and promote the discharge of scale and sludge. The input end of the pressurized water pump needs to be connected to an external water supply system to provide sufficient water for flushing the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a sewage discharge structure and a waste heat power generation boiler. Figure 2 This is a schematic diagram of a sewage discharge structure and the internal structure of a waste heat power generation boiler. Figure 3 This is a schematic diagram of a sewage discharge structure and the connection between the boiler body and the connecting pipe of a waste heat power generation boiler. Figure 4 A schematic diagram of the three-dimensional structure of a sewage discharge structure and the lower end face of a waste heat power generation boiler body; Figure 5 A three-dimensional structural diagram of the internal structure of a sewage discharge structure and a waste heat power generation boiler mounting base; Figure 6 A schematic diagram of the internal structure of a sewage discharge structure and a slag discharge connecting pipe of a waste heat power generation boiler; Figure 7 This is a three-dimensional structural diagram of a sewage discharge structure and a slag removal and cleaning component for a waste heat power generation boiler.

[0018] In the diagram: 1. Boiler body; 2. Connecting pipe; 3. Enclosed control assembly; 301. Mounting base; 302. Electric push rod; 303. Sealing plate; 304. Limiting track; 4. Ash discharge assembly; 401. Ash discharge connecting pipe; 402. Drive motor; 403. Transmission shaft; 404. Conveying blades; 5. Ash discharge cleaning assembly; 501. Pressurized water pump; 502. Main conveying pipe; 503. Fixed pipe; 504. Spray head; 6. Detection and control assembly; 601. Controller; 602. Alkalinity detection sensor; 603. Chloride ion concentration detection sensor. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0022] Example 1: Please see Figures 1-7 This is the first embodiment of the present invention. This embodiment provides a sewage discharge structure, including a boiler body 1, a connecting pipe 2 fixedly installed at the middle position of one end of the boiler body 1, and a slag discharge component 4 for driving pulp discharge fixedly connected to the bottom end of the connecting pipe 2. The slag discharge assembly 4 includes a slag discharge connecting pipe 401 fixedly connected to the bottom end of the connecting pipe 2. A slag discharge cleaning assembly 5 is provided on one side of the slag discharge connecting pipe 401. The slag discharge cleaning assembly 5 includes multiple spray heads 504 that are equidistantly distributed on the inner wall of the slag discharge connecting pipe 401.

[0023] Specifically, a drive motor 402 is fixedly installed at the top of the slag discharge connecting pipe 401, and a drive shaft 403 is fixedly installed through the top surface of the slag discharge connecting pipe 401 at the output end of the drive motor 402. A conveying blade 404 is fixedly installed on the outer wall of the drive shaft 403.

[0024] Furthermore, the conveying blades 404 can rotate inside the slag discharge connecting pipe 401 via the transmission shaft 403 and the drive motor 402, thus discharging the slag and scale in the slag discharge connecting pipe 401.

[0025] Specifically, a sealing control component 3 is provided on the bottom end face of the boiler body 1. The sealing control component 3 includes a mounting base 301 fixedly installed on the bottom end face of the boiler body 1. A connecting pipe 2 passes through the interior of the mounting base 301. The sealing control component 3 includes an electric push rod 302 fixedly installed on the front end of the bottom end face of the boiler body 1. A sealing plate 303 is fixedly installed on the output end of the electric push rod 302. A limiting track 304 matching the shape of the sealing plate 303 is opened inside the connecting pipe 2 and the mounting base 301. The sealing plate 303 is slidably connected to the connecting pipe 2 and the mounting base 301 through the limiting track 304.

[0026] Furthermore, the end of the sealing plate 303 furthest from the electric push rod 302 is a blade-shaped structure. With the blade-shaped structure, the residual sludge inside the connecting pipe 2 can be cut when the sealing plate 303 moves, thus preventing the residual sludge in the connecting pipe 2 from affecting the movement and closure of the sealing plate 303.

[0027] Specifically, the slag removal cleaning component 5 includes a pressurized water pump 501 fixedly installed at the rear end of the bottom face of the boiler body 1. The output end of the pressurized water pump 501 is connected to a conveying main pipe 502. The output end of the conveying main pipe 502 is fixedly connected to a fixed pipe 503. The fixed pipe 503 is fixedly installed on the outer wall of the slag removal connecting pipe 401. The spray head 504 is connected to the fixed pipe 503. The end face of the spray head 504 away from the fixed pipe 503 is flush with the inner wall end face of the slag removal connecting pipe 401.

[0028] Furthermore, the spray head 504 is designed to correspond to the conveying blade 404, so that when the conveying blade 404 rotates, the scale in the conveying blade 404 can be washed. At the same time, the water sprayed by the spray head 504 can prevent blockage and promote the discharge of scale. The input end of the pressurized water pump 501 needs to be connected to an external water supply system to provide sufficient water for the flushing of the device.

[0029] In use, when scale and slag inside the boiler body 1 need to be discharged, the electric push rod 302 is activated. The operation of the electric push rod 302 causes the sealing plate 303 to slide inside the limit track 304, thus opening the connecting pipe 2 and discharging the scale and slag in the connecting pipe 2 into the slag discharge connecting pipe 401. At the same time, the drive motor 402 is activated, which drives the transmission shaft 403 to rotate. The rotation of the transmission shaft 403 drives the conveying blades 404 to rotate, thus enabling the conveying blades 404 to push the scale and slag to move in the slag discharge connecting pipe 401, thereby achieving rapid discharge of scale and slag. The system discharges water quickly and simultaneously starts the pressurized water pump 501. The pressurized water pump 501 delivers water through the main conveying pipe 502 to the fixed pipe 503. The fixed pipe 503 disperses the water to each spray head 504, which sprays water onto various parts of the slag discharge connecting pipe 401. This cleans the scale and slag inside the slag discharge connecting pipe 401, facilitating the discharge of scale and slag. At the same time, the interaction between the spray heads 504 and the conveying blades 404 cleans both the conveying blades 404 and the interior of the slag discharge connecting pipe 401, improving the cleanliness of the device after use.

[0030] In summary, the slag discharge component 4 facilitates the transport and discharge of scale and sludge, thus preventing blockages caused by scale and sludge during discharge, which would affect the speed and efficiency of scale and sludge discharge. At the same time, the spray head 504 sprays water to prevent blockages and promote the discharge of scale and sludge. The input of the pressurized water pump 501 needs to be connected to an external water supply system to provide sufficient water for flushing the device.

[0031] Example 2: Please see Figures 1-2 This is the second embodiment of the present utility model.

[0032] This embodiment provides a waste heat power generation boiler. The boiler body 1 is equipped with a detection and control component 6 both inside and outside. The detection and control component 6 includes a controller 601 fixedly installed on one side end face of the boiler body 1. An alkalinity detection sensor 602 and a chloride ion concentration detection sensor 603 are embedded in the bottom end face of the boiler body 1. The alkalinity detection sensor 602 and the chloride ion concentration detection sensor 603 are electrically connected to the controller 601 through wires.

[0033] Furthermore, the controller 601 can analyze and process the data detected by the alkalinity detection sensor 602 and the chloride ion concentration detection sensor 603.

[0034] In use, the alkalinity detection sensor 602 and chloride ion concentration detection sensor 603 can detect the water quality inside the boiler, and transmit the alkalinity and chloride ion concentration indicators of the boiler water to the controller 601 via wires. The controller 601 analyzes and processes the data to control the operation of the blowdown mechanism, thereby completing the blowdown treatment of the water inside the boiler. In summary, the controller 601 can control the electrical components of the device, thereby achieving automated operation and reducing the labor intensity of workers.

[0035] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of this utility model. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0036] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0037] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sewage discharge structure, comprising a boiler body (1), characterized in that: A connecting pipe (2) is fixedly installed at the middle position of one end of the boiler body (1), and the bottom end of the connecting pipe (2) is fixedly connected to a slag discharge assembly (4) for driving pulp discharge. The slag discharge assembly (4) includes a slag discharge connecting pipe (401) fixedly connected to the bottom end of the connecting pipe (2). A slag discharge cleaning assembly (5) is provided on one side of the slag discharge connecting pipe (401). The slag discharge cleaning assembly (5) includes a plurality of spray heads (504) that are equidistantly distributed on the inner wall of the slag discharge connecting pipe (401).

2. The sewage discharge structure according to claim 1, characterized in that: A drive motor (402) is fixedly installed at the top end of the slag discharge connecting pipe (401). A transmission shaft (403) is fixedly installed through the top surface of the slag discharge connecting pipe (401) at the output end of the drive motor (402). A conveying blade (404) is fixedly installed on the outer wall of the transmission shaft (403).

3. The sewage discharge structure according to claim 1, characterized in that: The bottom end face of the boiler body (1) is provided with a closed control component (3), the closed control component (3) includes a mounting base (301) fixedly installed on the bottom end face of the boiler body (1), and the connecting pipe (2) passes through the interior of the mounting base (301).

4. The sewage discharge structure according to claim 3, characterized in that: The closed control assembly (3) includes an electric push rod (302) fixedly installed at the front end of the bottom end of the boiler body (1), and a sealing plate (303) is fixedly installed at the output end of the electric push rod (302).

5. A sewage discharge structure according to claim 4, characterized in that: The connecting pipe (2) and the mounting base (301) are provided with a limiting track (304) that matches the shape of the sealing plate (303). The sealing plate (303) is slidably connected to the connecting pipe (2) and the mounting base (301) through the limiting track (304).

6. The sewage discharge structure according to claim 1, characterized in that: The slag removal and cleaning component (5) includes a pressurized water pump (501) fixedly installed at the rear end of the bottom face of the boiler body (1), and the output end of the pressurized water pump (501) is connected to a conveying main pipe (502).

7. A sewage discharge structure according to claim 6, characterized in that: The output end of the main conveying pipe (502) is fixedly connected to a fixed pipe (503), which is fixedly installed on the outer wall of the slag discharge connecting pipe (401).

8. A sewage discharge structure according to claim 7, characterized in that: The spray head (504) is connected to the fixed pipe (503), and the end face of the spray head (504) away from the fixed pipe (503) is flush with the inner wall end face of the slag discharge connecting pipe (401).

9. A waste heat power generation boiler, characterized in that: The boiler body (1) includes the sewage discharge structure described in any one of claims 1 to 8, and a detection and control component (6) is provided both inside and outside the boiler body (1). The detection and control component (6) includes a controller (601) fixedly installed on one side end face of the boiler body (1).

10. A waste heat power generation boiler according to claim 9, characterized in that: An alkalinity detection sensor (602) and a chloride ion concentration detection sensor (603) are embedded in the bottom surface of the boiler body (1). The alkalinity detection sensor (602) and the chloride ion concentration detection sensor (603) are electrically connected to the controller (601) through wires.

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