A parallel modular economizer structure

Abstract

This utility model relates to the field of economizer technology, specifically a parallel modular economizer structure. It includes an economizer body with several heat exchange tubes for water transport connected to its inner cavity. Each heat exchange tube has H-shaped heat exchange fins on its surface. A water leakage groove is formed within the inner cavity of the economizer body, with one end connected to a water outlet pipe leading to the outside. The structure also includes a spraying mechanism disposed on the surface of the heat exchange tubes. In use, this utility model increases the heat exchange area due to the shape of the heat exchange fins. After daily use, the spraying mechanism provides water to the spray nozzles, allowing high-pressure water jets to be sprayed onto the surface of the heat exchange fins, effectively removing dust. Furthermore, the driving mechanism causes the spray nozzles to rotate in an arc, increasing their spray range and improving their practicality.

Description

Technical Field

[0001] This utility model relates to the field of economizer technology, specifically to a parallel modular economizer structure. Background Technology

[0002] An economizer is a heat exchanger installed in the flue gas duct at the tail end of a boiler. It utilizes the waste heat in the boiler exhaust to preheat the feedwater that is about to enter the boiler. This process significantly reduces the exhaust gas temperature, reduces exhaust heat loss, and improves the overall thermal efficiency of the boiler, thereby saving fuel consumption, reducing operating costs and pollutant emissions. Currently, multiple economizers can be connected in parallel to reduce the resistance on the working fluid side.

[0003] During the daily use of the economizer, when the flue gas comes into contact with the heat exchange fins, the heat in the flue gas will heat the water in the water pipes through the heat exchange fins. However, during long-term use, due to the large amount of dust in the flue gas, the dust will fall on the surface of the heat exchange fins. If the dust accumulates, it will affect the performance of the heat exchange fins and have a certain impact on the use of the economizer. Utility Model Content

[0004] The purpose of this invention is to provide a parallel modular economizer structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a parallel modular economizer structure, including an economizer body, the inner cavity of which is connected to a plurality of heat exchange tubes for conveying water, the surface of which is provided with H-shaped heat exchange fins, the inner cavity of which is provided with a water leakage groove, one end of which is connected to a water outlet pipe connected to the outside, and further comprising: A spraying mechanism is installed on the surface of the heat exchange tube. The surface of the spraying mechanism is connected to several spray heads for spraying water jets. The surface of the spraying mechanism is provided with an action shell. The inner cavity of the action shell is provided with a drive mechanism for the operation of the spraying mechanism.

[0006] Preferably, the spraying mechanism includes a water supply pipe connected to the surface of several heat exchange tubes, a solenoid valve is provided on the surface of the water supply pipe, several connecting pipes are connected to the other end of the water supply pipe, a spray pipe is rotatably provided on the surface of the connecting pipe, and the spray head is provided on the surface of the spray pipe.

[0007] Preferably, the spray head is a high-pressure spray head and is arranged at equal intervals on the surface of the spray pipe.

[0008] Preferably, the driving mechanism includes a transmission rod that rotates within the inner cavity of the working shell. Several windmills are fixed on the surface of the transmission rod. A reciprocating threaded rod is driven at the other end of the transmission rod through a transmission component. A meshing block is engaged on the surface of the reciprocating threaded rod. A toothed plate is fixed on the surface of the meshing block. Several gears are engaged on the surface of the toothed plate. The gears are fixed to the surface of the water spray pipe.

[0009] Preferably, one side of the meshing block slides against the surface of the economizer body.

[0010] Preferably, both ends of the reciprocating threaded rod are rotatably provided with support columns, and the other end of the support column is fixed to the surface of the economizer body.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, this invention increases the heat exchange area by adjusting the shape of the heat exchange plates. After daily use, the spraying mechanism provides water to the spray head, allowing high-pressure water jets to be sprayed onto the surface of the heat exchange plates to remove dust. Furthermore, the driving mechanism causes the spray head to rotate in an arc, increasing the spray range and improving its practicality. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram from another perspective of the present invention; Figure 3 This is a partial three-dimensional structural diagram of the present invention; Figure 4 This is a partial three-dimensional structural diagram of the present invention; Figure 5 This is a partial three-dimensional structural diagram of the present invention; Figure 6 This is a partial formal structural diagram of the present invention.

[0013] In the diagram: 1. Economizer body; 2. Heat exchange tube; 3. Heat exchange plate; 4. Water drain; 5. Water outlet pipe; 6. Spraying mechanism; 61. Water supply pipe; 62. Solenoid valve; 63. Connecting pipe; 64. Spray pipe; 7. Spray head; 8. Actuating shell; 9. Driving mechanism; 91. Fan; 92. Transmission rod; 93. Reciprocating threaded rod; 94. Meshing block; 95. Tooth plate; 96. Gear. Detailed Implementation

[0014] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0015] Please see Figure 1-6 As shown, a parallel modular economizer structure includes an economizer body 1. The inner cavity of the economizer body 1 is connected to several heat exchange tubes 2 for conveying water. The surface of the heat exchange tubes 2 is provided with H-shaped heat exchange fins 3. The H-shaped fin structure greatly increases the heat exchange area. The inner cavity of the economizer body 1 is provided with a water leakage groove 4. One end of the water leakage groove 4 is connected to a water outlet pipe 5 connected to the outside.

[0016] A spraying mechanism 6 is installed on the surface of the heat exchange tube 2. Several spray heads 7 for spraying water jets are connected to the surface of the spraying mechanism 6. The spray heads 7 are high-pressure nozzles and are equidistantly arranged on the surface of the spray pipe 64. When water flows through the inner cavity of the spray pipe 64, the spraying capacity of the spray heads 7 can be improved by adjusting their type and position, thus improving the practicality of the device. The spraying mechanism 6 includes a water supply pipe 61 connected to the surface of several heat exchange tubes 2. A solenoid valve 62 is installed on the surface of the water supply pipe 61. Several connecting pipes 63 are connected to the other end of the water supply pipe 61. A spray pipe 64 is rotatably installed on the surface of the connecting pipes 63. The spray heads 7 are installed on the surface of the spray pipe 64. After the solenoid valve 62 is opened, the hot water in the heat exchange tube 2 can enter the spray pipe 64 through the water supply pipe 61 and the connecting pipes 63. Then, under the action of the spray heads 7, it is sprayed on the surface of the heat exchange plate 3 to achieve the effect of blowing away dust particles.

[0017] The surface of the spraying mechanism 6 is provided with an actuating shell 8. The inner cavity of the actuating shell 8 is provided with a driving mechanism 9 that operates the spraying mechanism 6. The driving mechanism 9 includes a transmission rod 92 that rotates within the inner cavity of the actuating shell 8. Several fan motors 91 are fixed to the surface of the transmission rod 92. The other end of the transmission rod 92 is driven by a reciprocating threaded rod 93 through a transmission component. A meshing block 94 is engaged on the surface of the reciprocating threaded rod 93. A toothed plate 95 is fixed to the surface of the meshing block 94. Several gears 96 are engaged on the surface of the toothed plate 95. The gears 96 are fixed to the surface of the water spray pipe 64. When there is water flow in the water supply pipe 61, the fan motors 91 can drive the transmission rod 91 under the impact of the water. 2 rotates, and under the action of the transmission component, the reciprocating threaded rod 93 and the meshing block 94 mesh. Under the action of the reciprocating helical thread, the meshing block 94 moves back and forth, thereby causing the meshing block 94 to drive the toothed plate 95 and the gear 96 to mesh. This causes the water spray pipe 64 to rotate half a turn. One side of the meshing block 94 slides against the surface of the economizer body 1, providing a limit for the sliding of the meshing block 94 and improving the stability of the meshing block 94 during sliding. Both ends of the reciprocating threaded rod 93 are rotatably provided with support columns, and the other end of the support column is fixed to the surface of the economizer body 1 to support the rotational stability of the reciprocating threaded rod 93.

[0018] The transmission component in the driving mechanism 9 is a transmission column structure composed of several bevel teeth.

[0019] Working principle: After the boiler flue gas passes through the SCR reactor, the high-temperature flue gas can be sent into the economizer body 1 through the channel. Since there is water flowing in the heat exchange tube 2, the water in the heat exchange tube 2 is heated by the heat exchange plate 3, thus achieving the heat exchange effect.

[0020] During routine use of heat exchanger fins 3 and heat exchanger tubes 2, the flue gas contains a large amount of dust particles, which will settle on the surface of heat exchanger fins 3. At this time, the solenoid valve 62 can be opened. Then, the water flowing in the heat exchanger tubes 2 can enter the water spray pipe 64 through the water supply pipe 61 and the connecting pipe 63. Then, under the action of the water spray head 7, the water is sprayed onto the surface of the heat exchanger fins 3 to achieve the purpose of washing the particles on the surface of the heat exchanger fins 3.

[0021] When water flows through the water supply pipe 61, it impacts the fan 91. Under the action of the transmission rod 92, the reciprocating threaded rod 93 and the meshing block 94 mesh, causing the reciprocating threaded rod 93 to drive the meshing block 94 to move back and forth. This causes the spray pipe 64 to rotate, increasing the spray range of the spray head 7 and allowing the heat exchange fins 3 at different locations to be rinsed, thus improving the practicality of the device.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A parallel modular economizer structure, comprising an economizer body (1), characterized in that: The inner cavity of the economizer body (1) is connected to several heat exchange tubes (2) for transporting water. The surface of the heat exchange tubes (2) is provided with H-shaped heat exchange plates (3). The inner cavity of the economizer body (1) is provided with a water leakage groove (4). One end of the water leakage groove (4) is connected to a water outlet pipe (5) connected to the outside. It also includes: A spraying mechanism (6) is provided on the surface of the heat exchange tube (2). The surface of the spraying mechanism (6) is connected to a plurality of spray heads (7) for spraying water jets. An action shell (8) is provided on the surface of the spraying mechanism (6). The inner cavity of the action shell (8) is provided with a drive mechanism (9) that is equipped to operate the spraying mechanism (6).

2. The parallel modular economizer structure according to claim 1, characterized in that: The spraying mechanism (6) includes a water supply pipe (61) connected to the surface of several heat exchange tubes (2), a solenoid valve (62) is provided on the surface of the water supply pipe (61), and several connecting pipes (63) are connected to the other end of the water supply pipe (61). A spray pipe (64) is rotatably provided on the surface of the connecting pipe (63), and the spray head (7) is provided on the surface of the spray pipe (64).

3. The parallel modular economizer structure according to claim 2, characterized in that: The spray head (7) is a high-pressure spray head and is arranged at equal intervals on the surface of the spray pipe (64).

4. The parallel modular economizer structure according to claim 2, characterized in that: The driving mechanism (9) includes a transmission rod (92) that rotates within the cavity of the working shell (8). Several windmills (91) are fixed on the surface of the transmission rod (92). A reciprocating threaded rod (93) is driven by a transmission component at the other end of the transmission rod (92). A meshing block (94) is engaged on the surface of the reciprocating threaded rod (93). A toothed plate (95) is fixed on the surface of the meshing block (94). Several gears (96) are engaged on the surface of the toothed plate (95). The gears (96) are fixed on the surface of the water spray pipe (64).

5. The parallel modular economizer structure according to claim 4, characterized in that: One side of the meshing block (94) slides against the surface of the economizer body (1).

6. The parallel modular economizer structure according to claim 4, characterized in that: Both ends of the reciprocating threaded rod (93) are rotatably provided with support columns, and the other end of the support column is fixed to the surface of the economizer body (1).

Images