Wet desulfurization flue gas waste heat recovery device

Abstract

This utility model discloses a waste heat recovery device for wet desulfurization flue gas, relating to the field of boiler technology. The device includes a boiler body, a water tank, a circulating water pump, a heat recovery pipe, and an activated carbon adsorption screen. The water tank is located at the bottom of the filter body, and the circulating water pump is fixedly installed on the left side of the bottom of the boiler body. The input end of the circulating water pump is connected to the water tank via a conduit. This utility model, by setting up a convenient installation mechanism, allows users to quickly install and remove the activated carbon adsorption screen. This solves the problem that after prolonged use, the activated carbon adsorption screen needs to be replaced to ensure filtration stability and efficiency. However, multiple activated carbon adsorption screens are located in the boiler body and circulating water tank, making replacement inconvenient after prolonged use. This invention achieves the effect of easy replacement.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, specifically to a wet desulfurization flue gas waste heat recovery device. Background Technology

[0002] Currently, boilers are used to remove sulfur from harmful gases. A common method is to spray water into the gas to precipitate the sulfur particles. However, this method uses a large amount of water, which leads to waste of water resources and increases costs.

[0003] For example, application number CN202421334291.3 relates to the field of boiler technology, specifically to a wet desulfurization device for boiler flue gas waste heat recovery. The device includes a boiler body, a circulating water tank, support legs, a pumping pipe, and a mixing device. The mixing device includes a mixing shaft, mixing blades, a drive assembly, and auxiliary components. The mixing shaft is rotatably connected to the boiler body, and the mixing blades are fixedly connected to the mixing shaft. The drive assembly and auxiliary components are mounted on the boiler body. During desulfurization using the boiler body, when lime water is added to the boiler body, the drive assembly is activated. The drive assembly drives the mixing shaft to rotate the mixing blades within the boiler body, causing the mixing blades to stir and mix the lime water. This ensures thorough mixing of the lime water inside the boiler body, preventing sedimentation and allowing for effective utilization of the lime water, thus reducing desulfurization costs.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, while the aforementioned equipment can solve the problem that during the desulfurization process, the lack of stirring and mixing function inside the boiler leads to insufficient mixing of the lime water, resulting in the easy precipitation of a certain amount of limestone that cannot be effectively utilized, thus increasing the desulfurization cost, the activated carbon adsorption mesh needs to be replaced after prolonged use to ensure the stability and efficiency of filtration. However, multiple activated carbon adsorption meshes are located inside the boiler body and circulating water tank, making the replacement operation very inconvenient after prolonged use. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a wet desulfurization flue gas waste heat recovery device, which has the advantage of easy replacement. It solves the problem that after prolonged use, activated carbon adsorption nets need to be replaced to ensure the stability and efficiency of filtration. However, multiple activated carbon adsorption nets are located in the boiler body and circulating water tank, making the replacement operation very inconvenient after prolonged use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wet desulfurization flue gas waste heat recovery device, comprising a waste heat recovery unit, which includes a boiler body, a water tank, a circulating water pump, a heat recovery pipe, and an activated carbon adsorption screen. The water tank is located at the bottom of the filter body. The circulating water pump is fixedly installed on the left side of the bottom of the boiler body. The input end of the circulating water pump is connected to the water tank via a conduit, and the output end of the circulating water pump is fixedly connected to the left side of the top of the filter body via a conduit. One end of the heat recovery pipe is connected to the front of the boiler body, and the other end of the heat recovery pipe is fixedly connected to the water tank.

[0007] The convenient installation mechanism includes a main pipe, which is fixedly connected to the bottom of the boiler body. The other end of the main pipe is fixedly connected to the top of the water tank. A slot is provided on the right side of the main pipe. An arc-shaped plate is inserted into the inner wall of the slot. A support ring is fixedly connected to the left side of the arc-shaped plate. Several support rings are provided and are evenly distributed. The activated carbon adsorption mesh is inserted into the inside of the support ring.

[0008] An insertion mechanism is provided at the top and bottom of the arc-shaped plate;

[0009] A drive mechanism is movably connected to the right side of the arc-shaped plate via a pivot pin;

[0010] A positioning component is provided on the front side of the left side of the inner wall of the slot.

[0011] As a preferred embodiment of this utility model, the insertion mechanism includes a storage groove, which is formed at the top and bottom of the arc-shaped plate. A rod is slidably connected to the inner wall of the storage groove. Grooves are formed on both sides of the inner wall of the slot, and the rod is inserted into the groove. A through groove is formed on the right side of the inner wall of the storage groove, and the right side of the inner wall of the through groove extends to the right side of the arc-shaped plate.

[0012] In a preferred embodiment of this invention, the driving mechanism includes a screw, the left side of which is movably connected to the right side of the arc-shaped plate via a pin, a base block is threaded onto the surface of the screw, and connecting rods are movably connected to both sides of the base block via pins. The other end of the connecting rod is movably connected to the inner side of the right side of the insert rod via a pin.

[0013] As a preferred embodiment of the present invention, the positioning component includes a positioning groove, which is formed on the front side of the left side of the inner wall of the slot. A positioning post is inserted into the inner wall of the positioning groove, and the right side of the positioning post is fixedly connected to the front side of the left side of the arc plate.

[0014] As a preferred embodiment of this invention, a sealing gasket is fixedly connected to the surface of the arc-shaped plate, and the surface of the sealing gasket is in contact with the surface of the slot.

[0015] As a preferred embodiment of this utility model, a reset spring is fixedly connected to the inner side of the insertion rod, and the other end of the reset spring is fixedly connected to the inner side of the inner wall of the storage groove.

[0016] As a preferred embodiment of this utility model, U-shaped handles are fixedly connected to both sides of the right side of the arc-shaped plate, and the U-shaped handles are used to hold the arc-shaped plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model, by setting up a convenient installation mechanism, allows users to quickly install and disassemble the activated carbon adsorption net. This solves the problem that after prolonged use, the activated carbon adsorption net needs to be replaced to ensure the stability and efficiency of filtration. However, multiple activated carbon adsorption nets are located in the boiler body and circulating water tank, making the replacement operation very inconvenient after prolonged use. This invention achieves the effect of easy replacement.

[0019] 2. This utility model installs the activated carbon adsorption net between the boiler body and the water tank through a convenient installation mechanism, and at the same time uses a driving mechanism to insert the fixing mechanism into the convenient installation mechanism, thereby stabilizing the installation of the activated carbon adsorption net.

[0020] 3. This utility model improves the accuracy of arc plate installation and reduces adjustment steps during installation by utilizing positioning components. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a cross-sectional structural diagram of the boiler body of this utility model;

[0023] Figure 3 This is an exploded view of the parts of the convenient installation mechanism of this utility model;

[0024] Figure 4 This is a cross-sectional view of the arc-shaped plate of this utility model and an exploded view of some parts.

[0025] In the diagram: 1. Waste heat recovery device; 101. Boiler body; 102. Water tank; 103. Circulating water pump; 104. Heat recovery pipe; 105. Activated carbon adsorption net; 2. Convenient installation mechanism; 201. Main pipe; 202. Slot; 203. Arc plate; 204. Support ring; 3. Insertion mechanism; 301. Storage slot; 302. Insert rod; 303. Groove; 304. Through slot; 4. Drive mechanism; 401. Screw; 402. Base block; 403. Connecting rod; 5. Positioning assembly; 501. Positioning groove; 502. Positioning column; 6. Sealing gasket; 7. Reset tension spring; 8. U-shaped handle. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] 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.

[0028] 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 or selective embodiment that excludes other embodiments.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0030] Example 1

[0031] Reference Figure 1-4 This is the first embodiment of the present invention, providing a wet desulfurization flue gas waste heat recovery device 1, including a waste heat recovery device 1. The waste heat recovery device 1 includes a boiler body 101, a water tank 102, a circulating water pump 103, a heat recovery pipe 104, and an activated carbon adsorption screen 105. The water tank 102 is located at the bottom of the filter body. The circulating water pump 103 is fixedly installed on the left side of the bottom of the boiler body 101. The input end of the circulating water pump 103 is connected to the water tank 102 through a conduit, and the output end of the circulating water pump 103 is fixedly connected to the left side of the top of the filter body through a conduit. One end of the heat recovery pipe 104 is connected to the front of the boiler body 101, and the other end of the heat recovery pipe 104 is fixedly connected to the water tank 102.

[0032] The convenient installation mechanism 2 includes a main pipe 201, which is fixedly connected to the bottom of the boiler body 101. The other end of the main pipe 201 is fixedly connected to the top of the water tank 102. A slot 202 is provided on the right side of the main pipe 201. An arc-shaped plate 203 is inserted into the inner wall of the slot 202. A support ring 204 is fixedly connected to the left side of the arc-shaped plate 203. Several support rings 204 are provided and are evenly distributed. An activated carbon adsorption net 105 is inserted into the inside of the support ring 204.

[0033] Insertion mechanism 3 is provided at the top and bottom of the arc plate 203;

[0034] Drive mechanism 4 is movably connected to the right side of arc plate 203 via a shaft pin;

[0035] Positioning component 5 is located on the front left side of the inner wall of slot 202. Insertion mechanism 3 includes a receiving groove 301 located at the top and bottom of arc plate 203. Insertion rod 302 is slidably connected to the inner wall of receiving groove 301. Grooves 303 are provided on both sides of the inner wall of slot 202, and insertion rod 302 is inserted into the grooves 303. A through groove 304 is provided on the right side of the inner wall of receiving groove 301, extending to the right side of arc plate 203. Drive mechanism 4 includes a screw 401. The left side of the rod 401 is movably connected to the right side of the arc plate 203 via a pin. The surface of the screw 401 is threadedly connected to the base block 402. Both sides of the base block 402 are movably connected to the connecting rod 403 via pins. The other end of the connecting rod 403 is movably connected to the inner side of the right side of the insert rod 302 via a pin. The surface of the arc plate 203 is fixedly connected to the sealing gasket 6. The surface of the sealing gasket 6 is in contact with the surface of the slot 202. Both sides of the right side of the arc plate 203 are fixedly connected to the U-shaped handles 8, which are used to hold the arc plate 203.

[0036] Specifically, the activated carbon adsorption net 105 is installed between the boiler body 101 and the water tank 102 using the convenient installation mechanism 2. At the same time, the insertion mechanism 3 is inserted into the convenient installation mechanism 2 using the drive mechanism 4, thereby stabilizing the installation of the activated carbon adsorption net 105.

[0037] Furthermore, the activated carbon adsorption mesh 105 is first installed into the support ring 204. Then, the U-shaped handle 8 is used to hold the arc plate 203 and insert it into the slot 202, so that the support ring 204 and the activated carbon adsorption mesh 105 are inserted into the main pipe 201. The sealing gasket 6 is squeezed by the slot 202 and the arc plate 203, filling the gap between them and preventing the circulating water from leaking out. Then, the screw 401 is turned, so that the base block 402 moves along the trajectory of the screw 401, pushing the connecting rod 403 to rotate. As a result, the insertion rod 302 is pushed by the connecting rod 403 and moves outward symmetrically along the trajectory of the receiving groove 301, and finally inserts into the groove 303. At this point, the arc plate 203 is stabilized in the slot 202, so that the activated carbon adsorption mesh 105 can stably filter the circulating water entering the main pipe 201.

[0038] Example 2

[0039] In the second embodiment of this utility model, the positioning component 5 includes a positioning groove 501, which is formed on the front side of the left side of the inner wall of the slot 202. A positioning post 502 is inserted into the inner wall of the positioning groove 501, and the right side of the positioning post 502 is fixedly connected to the front side of the left side of the arc plate 203.

[0040] Specifically, the positioning component 5 is used to improve the installation accuracy of the curved plate 203 and reduce the adjustment steps during installation.

[0041] Furthermore, when the curved plate 203 is inserted into the slot 202, the positioning post 502 is first inserted into the positioning groove 501 to limit the lateral offset of the curved plate 203, ensuring that the position of the insertion rod 302 is accurately aligned with the groove 303, and avoiding the insertion rod 302 being unable to be inserted into the groove 303 due to the skewness of the curved plate 203.

[0042] Example 3

[0043] In the third embodiment of this utility model, a reset spring 7 is fixedly connected to the inner side of the insertion rod 302, and the other end of the reset spring 7 is fixedly connected to the inner side of the inner wall of the storage groove 301.

[0044] Specifically, by utilizing the rebound force of the reset spring 7, the screw 401 can be reversed, and when the base block 402 and the connecting rod 403 are reset, the insertion rod 302 can be smoothly pulled out of the groove 303 and retracted into the storage groove 301.

[0045] Furthermore, when the insertion rod 302 moves outward symmetrically, the return spring 7 will be stretched accordingly, generating a rebound force. Then, when the screw 401 reverses and drives the base block 402 and the connecting rod 403 to reset, the rebound force of the return spring 7 can pull the insertion rod 302 to move inward symmetrically, so that the connecting rod 403 between the base block 402 and the insertion rod 302 can smoothly reset and rotate, allowing the screw 401 to reverse smoothly and drive the base block 402 to reset.

[0046] Working principle:

[0047] Before operation, the activated carbon adsorption mesh 105 is installed into the support ring 204. Then, the U-shaped handle 8 is used to hold the arc plate 203 and insert it into the slot 202. When the arc plate 203 is inserted into the slot 202, the positioning post 502 first inserts into the positioning groove 501 to limit the lateral displacement of the arc plate 203, ensuring that the position of the insertion rod 302 is accurately aligned with the groove 303. This prevents the insertion rod 302 from failing to insert into the groove 303 due to the skewness of the arc plate 203. Thus, the support ring 204 and the activated carbon adsorption mesh 105 are stably inserted into the main pipe 201. At the same time, the sealing gasket 6 is squeezed by the slot 202 and the arc plate 203, filling the gap between them and preventing the circulating water from leaking out. Then, the screw 401 is turned, causing the base block 402 to move along the trajectory of the screw 401, pushing the connecting rod 403 to rotate. Consequently, the insertion rod 302 is pushed by the connecting rod 403 and moves outward symmetrically along the trajectory of the receiving groove 301, finally inserting into the slot. Within the groove 303, the arc-shaped plate 203 is secured within the slot 202, ensuring the activated carbon adsorption net 105 remains stable and filters the circulating water entering the main pipe 201. Then, the boiler body 101 and the circulating water pump 103 can be started sequentially to begin operation. (The specific working principle of this waste heat recovery device 1 is known to be a mature existing technology as described in the utility model of a wet desulfurization equipment for boiler flue gas waste heat recovery, authorized application number CN202421334291.3, and will not be elaborated further here.) When the activated carbon adsorption net 105 needs replacement after prolonged use to stabilize its filtration efficiency, the screw 401 can be reversed, causing the base block 402 and connecting rod 403 to reset, allowing the insertion rod 302 to be pulled out of the groove 303. This allows the arc-shaped plate 203 to be removed from the slot 202, and the activated carbon adsorption net 105 on the support ring 204 to be replaced, thus providing the advantage of easy replacement.

[0048] In summary, the wet desulfurization flue gas waste heat recovery device 1, by setting up a convenient installation mechanism 2, allows users to quickly install and disassemble the activated carbon adsorption net 105. This solves the problem that after prolonged use, the activated carbon adsorption net needs to be replaced to ensure the stability and efficiency of filtration. However, multiple activated carbon adsorption nets are located in the boiler body and circulating water tank, making the replacement operation very inconvenient after prolonged use.

[0049] It should be noted that (motor, cylinder, screw, gear, worm gear, electric telescopic rod, damper, spring) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are all common knowledge in the art, and therefore will not be described in detail in this application document.

[0050] 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., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting 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 described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. 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.

[0051] 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.

[0052] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled 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.

[0053] 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 wet desulphurization flue gas waste heat recovery device, characterized in that: The system includes a waste heat recovery device (1), which comprises a boiler body (101), a water tank (102), a circulating water pump (103), a heat recovery pipe (104), and an activated carbon adsorption screen (105). The water tank (102) is located at the bottom of the filter body. The circulating water pump (103) is fixedly installed on the left side of the bottom of the boiler body (101). The input end of the circulating water pump (103) is connected to the water tank (102) through a conduit, and the output end of the circulating water pump (103) is fixedly connected to the left side of the top of the filter body through a conduit. One end of the heat recovery pipe (104) is connected to the front of the boiler body (101), and the other end of the heat recovery pipe (104) is fixedly connected to the water tank (102). The convenient installation mechanism (2) includes a main pipe (201), which is fixedly connected to the bottom of the boiler body (101). The other end of the main pipe (201) is fixedly connected to the top of the water tank (102). A slot (202) is provided on the right side of the main pipe (201). An arc plate (203) is inserted into the inner wall of the slot (202). A support ring (204) is fixedly connected to the left side of the arc plate (203). Several support rings (204) are provided and are evenly distributed. The activated carbon adsorption net (105) is inserted into the inside of the support ring (204). Insertion mechanism (3), which is located at the top and bottom of the arc plate (203); The drive mechanism (4) is movably connected to the right side of the arc plate (203) via a pivot pin; Positioning component (5) is located on the front side of the left side of the inner wall of the slot (202).

2. The wet desulphurization flue gas waste heat recovery device according to claim 1, characterized in that: The insertion mechanism (3) includes a storage groove (301), which is located at the top and bottom of the arc plate (203). A rod (302) is slidably connected to the inner wall of the storage groove (301). Grooves (303) are provided on both sides of the inner wall of the groove (202). The rod (302) is inserted into the groove (303). A through groove (304) is provided on the right side of the inner wall of the storage groove (301). The right side of the inner wall of the through groove (304) extends to the right side of the arc plate (203).

3. The wet desulphurization flue gas waste heat recovery device according to claim 2, characterized in that: The drive mechanism (4) includes a screw (401), the left side of which is movably connected to the right side of the arc plate (203) via a pin, a base block (402) is threaded onto the surface of the screw (401), and connecting rods (403) are movably connected to both sides of the base block (402) via pins, and the other end of the connecting rod (403) is movably connected to the inner side of the right side of the insert rod (302) via a pin.

4. The wet desulphurization flue gas waste heat recovery device according to claim 1, characterized in that: The positioning component (5) includes a positioning groove (501), which is located on the front side of the left side of the inner wall of the slot (202). A positioning post (502) is inserted into the inner wall of the positioning groove (501), and the right side of the positioning post (502) is fixedly connected to the front side of the left side of the arc plate (203).

5. The wet desulphurization flue gas waste heat recovery device according to claim 1, characterized in that: A sealing gasket (6) is fixedly connected to the surface of the arc plate (203), and the surface of the sealing gasket (6) is in contact with the surface of the slot (202).

6. The wet desulphurization flue gas waste heat recovery device according to claim 2, characterized in that: A reset spring (7) is fixedly connected to the inner side of the insertion rod (302), and the other end of the reset spring (7) is fixedly connected to the inner side of the inner wall of the storage groove (301).

7. The wet desulphurization flue gas waste heat recovery device according to claim 1, characterized in that: Both sides of the right side of the arc plate (203) are fixedly connected with U-shaped handles (8), which are used to hold the arc plate (203).

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