Flue gas heat exchanger with dust removal device

Abstract

The utility model discloses a flue gas heat exchanger with a dust removal device, which belongs to the technical field of flue gas heat exchangers and is characterized by comprising a mounting block, the top of the mounting block is fixedly connected with a flue gas heat exchanger body, and the right side of the flue gas heat exchanger body is bolted with a mounting structure. The inner side of the mounting structure is in bolting connection with a spraying structure, the bottom of the mounting structure is in bolting connection with a flow guide structure, the inner side of the connecting frame is fixedly connected with the outer side of a supporting plate, the inner side of the supporting plate is in bolting connection with the outer side of a spraying head, and the top of the spraying head is in bolting connection with the bottom of a connecting pipe; a connector, a connecting pipe and a spraying head are arranged in the flue gas heat exchanger, the connector, the connecting pipe and the spraying head are communicated, an existing flue gas heat exchanger treats heat in flue gas and then continuously discharges the flue gas, and due to the fact that a large amount of dust is contained in the flue gas, if emission of the flue gas is not treated, the surrounding environment can be possibly affected.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas heat exchangers, in particular to a flue gas heat exchanger with a dust removal device. Background Art

[0002] A flue gas heat exchanger is a device that uses the heat in flue gas to heat other media. It is mainly used in the following areas: Industrial boilers: In boilers, flue gas heat exchangers are used to recover heat from flue gas for preheating boiler feed water, improving boiler efficiency, and reducing fuel consumption and emissions. Exhaust gas treatment systems: In some industrial processes, exhaust gas carries a large amount of heat. Through flue gas heat exchangers, the heat of exhaust gas can be recovered and reused to reduce emissions and save energy. Cogeneration system: In a cogeneration system, a flue gas heat exchanger can use the heat of high-temperature flue gas discharged by a gas turbine for heating, cooling or other industrial production, thereby improving energy utilization. Other applications: Flue gas heat exchangers can also be used in high-temperature industrial furnaces such as cement kilns and glass kilns, as well as incinerators, garbage disposals and other occasions that require heat recovery.

[0003] After the existing flue gas heat exchanger is used, a large amount of smoke and dust is easily attached to its inner side. After long-term use, the smoke and dust are easy to clog the heat exchanger. Therefore, after use, the staff often needs to dismantle the heat exchanger and clean its interior regularly. Many flue gas heat exchangers do not have the function of online cleaning and cannot automatically clean their interior after use, which is not convenient for maintenance of the flue gas heat exchanger and is inconvenient to use;

[0004] The existing patent (Announcement No.: CN219977201U) discloses a flue gas heat exchanger with an online cleaning function. The flue gas heat exchanger with an online cleaning function is equipped with a cleaning liquid storage bin, an exhaust pipe, an exhaust pump and an exhaust pipe. When in use, the cleaning agent can be poured into the cleaning liquid storage bin, and the exhaust pump can extract the cleaning agent inside the cleaning liquid storage bin through the exhaust pipe, and spray the cleaning agent into the heat exchanger shell through the exhaust pipe, so that the inside of the heat exchanger shell can be cleaned, and the online cleaning function can be realized. There is no need for the staff to manually disassemble the heat exchanger shell for cleaning, which is convenient for maintenance of the device and the device is convenient to use; the flue gas heat exchanger with an online cleaning function is equipped with a round The flue gas heat exchanger with online cleaning function is equipped with a metal heat conducting rod and a metal heat conducting sheet. During use, the heat in the flue gas is transferred to the inside of the cleaning liquid storage bin through the metal heat conducting rod and the metal heat conducting sheet. The heat in the flue gas is utilized to heat the cleaning liquid inside the cleaning liquid storage bin, which is not only conducive to forming water mist for the cleaning liquid, but also has a better cleaning effect on the inside of the heat exchanger shell by the heated cleaning liquid.

[0005] In view of the above problems, the existing patent provides a solution. The existing flue gas heat exchanger continues to discharge the flue gas after processing the heat in the flue gas. Since the flue gas still contains a large amount of dust, if the flue gas emission is not processed, it may affect the surrounding environment.

[0006] To this end, a flue gas heat exchanger with a dust removal device is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a flue gas heat exchanger with a dust removal device, which can solve the problem that the existing flue gas heat exchanger continues to discharge the flue gas after processing the heat in the flue gas. Since the flue gas still contains a large amount of dust, if the flue gas emission is not processed, it may cause an impact on the surrounding environment.

[0008] To achieve the above object, the utility model provides the following technical solution: a flue gas heat exchanger with a dust removal device, comprising a mounting block, the top of the mounting block is fixedly connected to a flue gas heat exchanger body, the right side of the flue gas heat exchanger body is bolted with a mounting structure, the inner side of the mounting structure is bolted with a spray structure, and the bottom of the mounting structure is bolted with a guide structure;

[0009] The spray structure includes a connecting frame, a connector, a connecting pipe, a support plate and a spray head. The inner side of the connecting frame is fixedly connected to the outer side of the support plate, the inner side of the support plate is bolted to the outer side of the spray head, the top of the spray head is bolted to the bottom of the connecting pipe, the top of the connecting pipe is bolted to the bottom of the connector, and the connector, connecting pipe and spray head are all connected.

[0010] Preferably, a connection shell is bolted to the outer side of the connection frame, and the connection pipe passes through the connection shell and is connected to the connector.

[0011] Preferably, a bent pipe is fixedly connected to the left side of the connecting shell, and a smoke outlet pipe is fixedly connected to the right side of the connecting shell.

[0012] Preferably, a conical tube is bolted to the left side of the bent tube, and the left side of the conical tube is bolted to the right side of the flue gas heat exchanger body, and the flue gas heat exchanger body, conical tube, bent tube, connecting shell and smoke outlet pipe are all connected.

[0013] Preferably, a closing shell is bolted to the bottom of the connecting shell, and a conical leaking block is fixedly connected to the inner side of the closing shell.

[0014] Preferably, the top of the conical drain block is movably connected to the bottom of the connecting frame, a drain pipe is bolted to the bottom of the closed shell, and the conical drain block, the closed shell and the drain pipe are all connected.

[0015] Preferably, a rectangular block is fixedly connected to the top of the connecting frame, and the number of the rectangular blocks is four and they are respectively arranged on both sides of the top of the connecting frame, and the outer sides of the rectangular blocks are bolted to the inner side of the connecting shell.

[0016] Preferably, a communicating hole is opened on the top of the mounting block, the number of the communicating holes is six, and the number of the mounting blocks is four and they are respectively arranged at the bottom of the flue gas heat exchanger body.

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

[0018] 1. The present application sets a spray structure connected to the mounting structure. When the flue gas heat exchanger body discharges the flue gas, the flue gas flows to the bottom of the spray structure through the guidance of the mounting structure. The water supply pipe can be connected to the connector for water supply. The water flow is introduced through the connecting pipe at the bottom of the connector, and then water mist is sprayed from the spray head. The water mist contacts the flue gas to reduce the dust particles in the flue gas and remove most of the harmful substances.

[0019] 2. The present application sets up an installation structure. When the smoke is discharged from the smoke heat exchanger body, the smoke is guided to the inside of the connecting shell through the conical tube and the bent tube connected to the smoke heat exchanger body, and can be treated by the spray structure installed on the inside of the connecting shell. By setting up a fixed smoke outlet pipe on the right side of the connecting shell, the subsequent smoke can be discharged from the inside of the connecting shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the flue gas heat exchanger with dust removal device of the utility model;

[0021] Figure 2 A diagram showing the disassembly of the spray structure of the utility model;

[0022] Figure 3 This is a bottom view of the overall installation structure of the utility model;

[0023] Figure 4 A diagram showing the splitting of the diversion structure of the utility model;

[0024] Figure 5 This is a bottom view of the overall spray structure of the utility model;

[0025] Figure 6 This is a connection diagram of the connection shell, the bending tube and the closed shell of the utility model.

[0026] In the figure, 1. mounting block; 2. flue gas heat exchanger body; 3. mounting structure; 31. connecting shell; 32. bent pipe; 33. smoke outlet pipe; 34. conical pipe; 4. spray structure; 41. connecting frame; 42. connector; 43. connecting pipe; 44. support plate; 45. spray head; 5. flow guide structure; 51. closed shell; 52. conical drain block; 53. drain pipe; 6. rectangular block; 7. connecting hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-6 , the utility model provides a technical solution:

[0029] A flue gas heat exchanger with a dust removal device comprises a mounting block 1, a flue gas heat exchanger body 2 is fixedly connected to the top of the mounting block 1, a mounting structure 3 is bolted to the right side of the flue gas heat exchanger body 2, a spray structure 4 is bolted to the inner side of the mounting structure 3, and a guide structure 5 is bolted to the bottom of the mounting structure 3;

[0030] The spray structure 4 includes a connecting frame 41, a connector 42, a connecting pipe 43, a support plate 44 and a spray head 45. The inner side of the connecting frame 41 is fixedly connected to the outer side of the support plate 44, the inner side of the support plate 44 is bolted to the outer side of the spray head 45, the top of the spray head 45 is bolted to the bottom of the connecting pipe 43, the top of the connecting pipe 43 is bolted to the bottom of the connector 42, and the connector 42, the connecting pipe 43 and the spray head 45 are all connected.

[0031] In this embodiment: when the flue gas heat exchanger body 2 discharges the flue gas, the flue gas flows to the bottom of the spray structure 4 through the guidance of the mounting structure 3. Water can be supplied by connecting the water supply pipe to the connector 42. The water flow is introduced through the connecting pipe 43 at the bottom of the connector 42, and then water mist is sprayed from the spray head 45. The water mist contacts the flue gas to reduce the dust particles in the flue gas. The guide structure 5 bolted to the bottom of the mounting structure 3 can guide the subsequent flowing water, and the user can then treat the sewage.

[0032] Specifically, Figure 3 and Figure 6 As shown, the outer side of the connecting frame 41 is bolted with the connecting shell 31 , and the connecting pipe 43 passes through the connecting shell 31 and is connected to the connector 42 .

[0033] Specifically, Figure 3 , Figure 6 As shown, a bending pipe 32 is fixedly connected to the left side of the connecting shell 31 , and a smoke outlet pipe 33 is fixedly connected to the right side of the connecting shell 31 .

[0034] Specifically, Figure 3 and Figure 6 As shown, the left side of the bent tube 32 is bolted with a conical tube 34, and the left side of the conical tube 34 is bolted to the right side of the flue gas heat exchanger body 2. The flue gas heat exchanger body 2, the conical tube 34, the bent tube 32, the connecting shell 31 and the smoke outlet pipe 33 are all connected.

[0035] In this embodiment: after the smoke is discharged from the smoke heat exchanger body 2, the smoke is guided to the inside of the connecting shell 31 through the tapered tube 34 and the bent tube 32 connected to the smoke heat exchanger body 2, and can be treated by the spray structure 4 installed on the inside of the connecting shell 31. By setting a smoke outlet pipe 33 fixed on the right side of the connecting shell 31, the subsequent smoke can be discharged from the inside of the connecting shell 31. By setting the bent tube 32, it can be prevented that water flows from the inside of the connecting shell 31 into the smoke heat exchanger body 2.

[0036] Specifically, Figure 4 and Figure 6 As shown, a closing shell 51 is bolted to the bottom of the connecting shell 31 , and a conical leaking block 52 is fixedly connected to the inner side of the closing shell 51 .

[0037] Specifically, Figure 4 , Figure 6 The top of the conical drain block 52 is movably connected to the bottom of the connecting frame 41, and a drain pipe 53 is bolted to the bottom of the closed shell 51. The conical drain block 52, the closed shell 51 and the drain pipe 53 are all connected.

[0038] In this embodiment: by setting a closed shell 51 bolted to the bottom of the connecting shell 31, when water mist falls, the water is guided to the bottom of the inner side of the closed shell 51 through the conical leakage block 52 fixed on the inner side of the closed shell 51, and the drainage pipe 53 bolted to the bottom of the closed shell 51 guides the water out, and the user can use a collection tool to collect the sewage.

[0039] Specifically, Figure 2 , Figure 5 and Figure 6 As shown, a rectangular block 6 is fixedly connected to the top of the connecting frame 41 . There are four rectangular blocks 6 , which are respectively arranged on both sides of the top of the connecting frame 41 . The outer side of the rectangular block 6 is bolted to the inner side of the connecting shell 31 .

[0040] Specifically, Figure 1 As shown, the top of the mounting block 1 is provided with four communicating holes 7 , and the number of the communicating holes 7 is six. The number of the mounting blocks 1 is six and they are respectively arranged at the bottom of the flue gas heat exchanger body 2 .

[0041] In this embodiment: by setting a rectangular block 6 fixed to the connecting frame 41, the connecting frame 41 can be bolted to the inner side of the connecting shell 31 through the rectangular block 6, so that the spray structure 4 is stabilized, and by setting a connecting hole 7 opened in the mounting block 1, the user can bolt and fix the mounting block 1 to achieve the purpose of stabilizing the flue gas heat exchanger body 2.

[0042] Working principle: In the case where dust removal is required for the smoke discharged from the smoke heat exchanger body 2, when the smoke is discharged from the smoke heat exchanger body 2, the smoke is guided to the inside of the connection shell 31 through the conical tube 34 and the curved tube 32 connected to the smoke heat exchanger body 2, and can be treated by the spray structure 4 installed on the inside of the connection shell 31. By setting the smoke outlet pipe 33 fixed on the right side of the connection shell 31, the subsequent smoke can be discharged from the inside of the connection shell 31. The setting of the curved tube 32 can prevent water from entering the smoke heat exchanger body 2 from the inside of the connection shell 31, and the smoke flows to the spray structure 4. The bottom of the shower structure 4 can be used to supply water by connecting a water supply pipe to a connector 42. The water flow is introduced through a connecting pipe 43 at the bottom of the connector 42, and then water mist is sprayed from a sprinkler head 45. The water mist contacts the flue gas to reduce the dust particles in the flue gas. By setting a closed shell 51 bolted to the bottom of the connecting shell 31, when the water mist falls, the water is guided to the bottom of the inner side of the closed shell 51 through a conical leak block 52 fixed on the inner side of the closed shell 51, and the drain pipe 53 bolted to the bottom of the closed shell 51 guides the water out. The user can use a collection tool to collect the sewage.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flue gas heat exchanger with a dust removal device, comprising a mounting block (1), characterized in that: The top of the mounting block (1) is fixedly connected to a flue gas heat exchanger body (2), the right side of the flue gas heat exchanger body (2) is bolted to a mounting structure (3), the inner side of the mounting structure (3) is bolted to a spray structure (4), and the bottom of the mounting structure (3) is bolted to a flow guide structure (5); The spray structure (4) comprises a connecting frame (41), a connector (42), a connecting pipe (43), a supporting plate (44) and a spray head (45); the inner side of the connecting frame (41) is fixedly connected to the outer side of the supporting plate (44); the inner side of the supporting plate (44) is bolted to the outer side of the spray head (45); the top of the spray head (45) is bolted to the bottom of the connecting pipe (43); the top of the connecting pipe (43) is bolted to the bottom of the connector (42); and the connector (42), the connecting pipe (43) and the spray head (45) are all connected.

2. The flue gas heat exchanger with a dust removal device according to claim 1, characterized in that: The outer side of the connecting frame (41) is bolted with a connecting shell (31), and the connecting pipe (43) passes through the connecting shell (31) and is connected to the connector (42).

3. The flue gas heat exchanger with a dust removal device according to claim 2, characterized in that: The left side of the connecting shell (31) is fixedly connected to a bent tube (32), and the right side of the connecting shell (31) is fixedly connected to a smoke outlet pipe (33).

4. The flue gas heat exchanger with a dust removal device according to claim 3, characterized in that: The left side of the bent tube (32) is bolted to a conical tube (34), and the left side of the conical tube (34) is bolted to the right side of the flue gas heat exchanger body (2); the flue gas heat exchanger body (2), the conical tube (34), the bent tube (32), the connecting shell (31) and the smoke outlet pipe (33) are all connected.

5. The flue gas heat exchanger with a dust removal device according to claim 2, characterized in that: A closing shell (51) is bolted to the bottom of the connecting shell (31), and a conical leaking block (52) is fixedly connected to the inner side of the closing shell (51).

6. The flue gas heat exchanger with a dust removal device according to claim 5, characterized in that: The top of the conical drain block (52) is movably connected to the bottom of the connecting frame (41), the bottom of the closed shell (51) is bolted with a drain pipe (53), and the conical drain block (52), the closed shell (51) and the drain pipe (53) are all connected.

7. The flue gas heat exchanger with a dust removal device according to claim 2, characterized in that: A rectangular block (6) is fixedly connected to the top of the connecting frame (41). The number of the rectangular blocks (6) is four and they are respectively arranged on both sides of the top of the connecting frame (41). The outer side of the rectangular block (6) is bolted to the inner side of the connecting shell (31).

8. The flue gas heat exchanger with a dust removal device according to claim 1, characterized in that: The top of the mounting block (1) is provided with a communication hole (7), the number of the communication holes (7) is six, and the number of the mounting blocks (1) is four and they are respectively arranged at the bottom of the flue gas heat exchanger body (2).

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