Vertical cleaning device for flue gas heat exchanger

Abstract

The utility model relates to the technical field of flue gas heat exchanger cleaning, in particular to a flue gas heat exchanger vertical cleaning device which comprises a flue, the top of the flue is connected with a moving mechanism, one side of the moving mechanism is fixedly connected with a metal water pipe, and the bottom of the metal water pipe is fixedly connected with a spray pipe. A plurality of spray heads are fixedly connected to one side of the spray pipe, a flue gas heat exchanger is installed in the flue, the spray heads correspond to the flue gas heat exchanger, a water pump is fixedly connected to the top of the flue, a hose is fixedly connected to one end of the water pump, and the other end of the hose is fixedly connected with a metal water pipe; the nozzles are fan-shaped cleaning nozzles and are made of a corrosion-resistant material, the distances between the nozzles are equal, the metal water pipe penetrates through the flue and extends into the flue, and a sealing mechanism is arranged at the junction of the metal water pipe and the flue.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas heat exchanger cleaning, in particular to a vertical cleaning device for a flue gas heat exchanger. Background Art

[0002] A flue gas heat exchanger is a heat exchange device that uses the heat of a high-temperature fluid to heat a low-temperature fluid, and is particularly used to transfer the heat energy of high-temperature flue gas to low-temperature flue gas. This type of equipment is widely used in the industrial field, especially in combustion equipment such as boilers, hot blast furnaces, and kilns, aiming to recover and utilize the heat energy in flue gas, improve energy utilization efficiency, reduce energy consumption and emissions, and thus reduce environmental pollution. In the existing flue gas heat exchanger technology, the commonly used cleaning methods mainly include acoustic cleaning and compressed air soot blowing. Although these methods can remove dust accumulated on the surface of the heat exchanger to a certain extent, there are many deficiencies in practical applications. The effect of acoustic cleaning is often limited by the propagation characteristics of sound waves and the adhesion of dust, while compressed air soot blowing may lead to incomplete cleaning due to problems such as unstable air pressure or nozzle blockage, and may even cause equipment failure, affecting the normal operation of the heat exchanger.

[0003] In order to solve the above problems, the present invention proposes a new solution for cleaning flue gas heat exchangers. The present invention adopts a water flushing method, which not only has a short operation time but also has a significant cleaning effect. The impact force and fluidity of the water flow can more effectively remove dust and dirt on the surface of the heat exchanger, ensuring the heat exchange efficiency of the heat exchanger. At the same time, the present invention also designs a nozzle and a nozzle that can move up and down inside the flue to ensure that the cleaning range can fully cover every corner of the heat exchanger without leaving any dead corners. It also realizes an online automatic cleaning function, which greatly improves the cleaning efficiency and the continuity of equipment operation. In terms of sealing, a specially designed sealing structure is used for the connection between the nozzle and the flue. This sealing structure can effectively prevent the leakage of flue gas and ash during the cleaning process, ensuring the cleanliness and safety of the working environment.

[0004] Therefore, it is necessary to design a vertical cleaning device for flue gas heat exchanger with strong practicality and automatic cleaning. Utility Model Content

[0005] The purpose of the utility model is to provide a vertical cleaning device for a flue gas heat exchanger to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical cleaning device for a flue gas heat exchanger, comprising a flue, a movable mechanism is connected to the top of the flue, a metal water pipe is fixedly connected to one side of the movable mechanism, a nozzle is fixedly connected to the bottom of the metal water pipe, a plurality of nozzles are fixedly connected to one side of the nozzle, a flue gas heat exchanger is installed inside the flue, the nozzles correspond to the flue gas heat exchanger, a water pump is fixedly connected to the top of the flue, a hose is fixedly connected to one end of the water pump, and the other end of the hose is fixedly connected to the metal water pipe.

[0007] According to the above technical solution, the nozzle is a fan-shaped cleaning nozzle made of corrosion-resistant material, and the spacing between several nozzles is equal.

[0008] According to the above technical solution, the metal water pipe passes through the flue and extends into the interior of the flue, and a sealing mechanism is provided at the junction of the metal water pipe and the flue.

[0009] According to the above technical solution, the sealing mechanism includes a sealing box, the sealing box is fitted to the flue, a first rubber is placed at the joint between the sealing box and the flue, a side panel is fixedly connected to the outer side of the bottom of the sealing box, a plurality of bolts are threadedly connected to the internal thread of the side panel, the bolts and the flue are threadedly connected, and a second rubber is arranged at the junction of the sealing box and the metal water pipe.

[0010] According to the above technical solution, a track is fixedly connected to the interior of the flue.

[0011] According to the above technical solution, the track and the nozzle are slidably connected.

[0012] According to the above technical solution, the moving mechanism includes a winch, which is fixedly connected to the top of the flue, a bracket is fixedly connected to the top of the flue, a pulley block is fixedly connected to the top of the bracket, a steel wire rope is connected to the port of the winch, the steel wire rope passes around the pulley block, and the other end of the steel wire rope is fixedly connected to the metal water pipe.

[0013] According to the above technical solution, a collecting trough is fixedly connected to the bottom of the flue.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0015] (1) By providing a moving mechanism, the nozzle of the device can move up and down, thereby expanding the cleaning range and making the cleaning more thorough. By turning on the winch, the device can be moved up and down, and the device can be automatically cleaned in conjunction with the water pump, saving manpower and improving work efficiency;

[0016] (2) The sealing mechanism can prevent the leakage of smoke and ash, thus protecting the environment;

[0017] (3) By setting up a simple moving mechanism, the equipment structure is simple, the process operation is simple, and it is easy for the staff to operate, achieving a good cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0020] In the figure: 1. flue; 11. track; 12. collecting trough; 2. winch; 21. bracket; 22. pulley block; 23. wire rope; 3. metal water pipe; 31. nozzle; 32. nozzle; 4. water pump; 41. hose; 5. flue gas heat exchanger; 6. sealing box. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-2 The utility model provides a technical solution: a vertical cleaning device for a flue gas heat exchanger, comprising a flue 1, a mobile mechanism is connected to the top of the flue 1, a metal water pipe 3 is fixedly connected to one side of the mobile mechanism, a nozzle 31 is fixedly connected to the bottom of the metal water pipe 3, a plurality of nozzles 32 are fixedly connected to one side of the nozzle 31, a flue gas heat exchanger 5 is installed inside the flue 1, the nozzle 32 corresponds to the flue gas heat exchanger 5, a water pump 4 is fixedly connected to the top of the flue 1, one end of the water pump 4 is fixedly connected to a hose 41, and the other end of the hose 41 is fixedly connected to the metal water pipe 3. The water pipe 3 is fixedly connected; after the flue gas passes through the flue 1 for a period of time, dust will accumulate on the surface of the flue gas heat exchanger 5. At this time, the staff can start the cleaning device, turn on the water pump 4, and water will flow into the metal water pipe 3 from the hose 41, and then through the nozzle 31. The high-pressure water inside the nozzle 31 is ejected from the nozzle 32, and sprayed and cleaned along the flow direction of the flue gas. At the same time, the staff can turn on the moving mechanism, and the moving mechanism will take the metal water pipe 3 up and down, so that the upper and lower ranges are cleaned. By providing a moving mechanism, the nozzle 32 can move up and down, expanding the cleaning range and ensuring the cleaning effect. This device is flushed with water, with a short operation time, good cleaning effect, safety and stability. By providing a water pump 4 and a moving mechanism, the device can be automatically cleaned when it is turned on, saving manpower and improving work efficiency.

[0023] The nozzle 32 is a fan-shaped cleaning nozzle, which is made of corrosion-resistant material, and the spacing between the nozzles 32 is equal; the working pressure of the nozzle 32 is 0.3-1.0MPa, and the cleaning effect is good. The dedicated fan-shaped cleaning nozzle makes the cleaning effect better.

[0024] The metal water pipe 3 passes through the flue 1 and extends into the interior of the flue 1. A sealing mechanism is provided at the junction of the metal water pipe 3 and the flue 1. Half of the metal water pipe 3 is outside the flue 1 and half is inside the flue 1, so that the external main device and the interior can be connected together. A special sealing box 6 is provided on the flue 1 to ensure that flue gas, ash, etc. do not leak out.

[0025] The sealing mechanism includes a sealing box 6, which is fitted with the flue 1, and a first rubber is placed at the joint between the sealing box 6 and the flue 1. A side plate is fixedly connected to the outside of the bottom of the sealing box 6, and a plurality of bolts are connected to the inner thread of the side plate. The bolts and the flue 1 are threadedly connected, and a second rubber is arranged at the junction of the sealing box 6 and the metal water pipe 3; the sealing box 6 and the flue 1 are tightly connected together by bolts, and a first rubber is placed in the middle of the two connections. The first rubber has elasticity and can completely fill the gap between the two, thereby ensuring the sealing effect. By providing a sealing mechanism, it can be ensured that smoke, ash, etc. do not leak out, prevent environmental pollution, and ensure sealing.

[0026] A track 11 is fixedly connected inside the flue 1; the track 11 is used to maintain the balance of the nozzle 31, prevent the nozzle 31 from shaking, and ensure that its moving direction is fixed.

[0027] The track 11 and the nozzle 31 are slidably connected; this ensures that the nozzle 31 can move up and down, while the track 11 limits the moving direction of the nozzle 31.

[0028] The moving mechanism includes a winch 2, which is fixedly connected to the top of the flue 1, a bracket 21 is fixedly connected to the top of the flue 1, a pulley block 22 is fixedly connected to the top of the bracket 21, a wire rope 23 is connected to the port of the winch 2, the wire rope 23 passes around the pulley block 22, and the other end of the wire rope 23 is fixedly connected to the metal water pipe 3; when the staff is ready to move the nozzle 32 up and down, the winch 2 is turned on at this time to retract the wire rope 23, so that the wire rope 23 is pulled upward through the pulley block 22 to the metal water pipe 3, and when it is to be lowered, the wire rope 23 is released, and the metal water pipe 3 has a certain gravity, and under the action of gravity, the metal water pipe 3 will fall, thereby realizing the up and down movement of the nozzle 32. By providing a moving mechanism, the nozzle 31 and the nozzle 32 can move up and down inside the flue, and the cleaning range can be fully covered, thereby improving work efficiency.

[0029] A collecting tank 12 is fixedly connected to the bottom of the flue 1; the ash and water on the heat exchanger are discharged from the collecting tank 12 at the bottom of the flue, completing the collection of the ash and preventing environmental pollution.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A vertical cleaning device for a flue gas heat exchanger, comprising a flue (1), characterized in that: The top of the flue (1) is connected to a moving mechanism, one side of the moving mechanism is fixedly connected to a metal water pipe (3), the bottom of the metal water pipe (3) is fixedly connected to a nozzle (31), one side of the nozzle (31) is fixedly connected to a plurality of nozzles (32), a flue gas heat exchanger (5) is installed inside the flue (1), the nozzles (32) correspond to the flue gas heat exchanger (5), the top of the flue (1) is fixedly connected to a water pump (4), one end of the water pump (4) is fixedly connected to a hose (41), and the other end of the hose (41) is fixedly connected to the metal water pipe (3).

2. The vertical cleaning device for flue gas heat exchanger according to claim 1, characterized in that: The nozzle (32) is a fan-shaped cleaning nozzle made of corrosion-resistant material, and the spacing between a plurality of the nozzles (32) is equal.

3. The vertical cleaning device for flue gas heat exchanger according to claim 1, characterized in that: The metal water pipe (3) passes through the flue (1) and extends into the interior of the flue (1); a sealing mechanism is provided at the junction of the metal water pipe (3) and the flue (1).

4. The vertical cleaning device for flue gas heat exchanger according to claim 3 is characterized in that: The sealing mechanism comprises a sealing box (6), the sealing box (6) and the flue (1) are fitted together, a first rubber is placed at the joint between the sealing box (6) and the flue (1), a side plate is fixedly connected to the outside of the bottom of the sealing box (6), a plurality of bolts are threadedly connected to the inside of the side plate, the bolts and the flue (1) are threadedly connected, and a second rubber is arranged at the junction of the sealing box (6) and the metal water pipe (3).

5. The vertical cleaning device for flue gas heat exchanger according to claim 1, characterized in that: A track (11) is fixedly connected to the interior of the flue (1).

6. The vertical cleaning device for flue gas heat exchanger according to claim 5, characterized in that: The track (11) and the nozzle (31) are slidably connected.

7. The vertical cleaning device for flue gas heat exchanger according to claim 1, characterized in that: The moving mechanism comprises a winch (2), the winch (2) is fixedly connected to the top of the flue (1), the top of the flue (1) is fixedly connected to a bracket (21), the top of the bracket (21) is fixedly connected to a pulley block (22), the port of the winch (2) is connected to a steel wire rope (23), the steel wire rope (23) passes around the pulley block (22), and the other end of the steel wire rope (23) is fixedly connected to a metal water pipe (3).

8. The vertical cleaning device for flue gas heat exchanger according to claim 1, characterized in that: A collecting tank (12) is fixedly connected to the bottom of the flue (1).

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