High-temperature economizer of low-temperature efficient boiler

Abstract

The high-temperature economizer of the low-temperature efficient boiler comprises an outer shell and a heat preservation water tank, the outer shell is provided with a smoke inlet and a smoke outlet, a heat exchange pipeline is arranged on the portion, between the smoke inlet and the smoke outlet, of the shell, and the two ends of the heat exchange pipeline are communicated with a water inlet and a water outlet of the heat preservation water tank. A cigarette ash treatment mechanism is arranged in the shell and comprises a cylindrical filter screen and a vibration dust removal mechanism arranged at the lower end of the cylindrical filter screen, and the upper end and the lower end of the cylindrical filter screen are communicated with the smoke inlet and the smoke outlet respectively. According to the high-temperature economizer of the low-temperature efficient boiler, ash removal operation can be conducted, and the heat conduction efficiency of the high-temperature economizer is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of boiler equipment technology, and in particular to a low-temperature high-efficiency boiler high-temperature economizer. Background Technology

[0002] Low-temperature boilers are devices designed to generate steam or hot water at lower temperatures and pressures, and are widely used in heating, food processing, and pharmaceutical manufacturing. They feature relatively simple designs, flexible material selection, and a greater emphasis on energy efficiency and environmental performance. Compared to high-temperature boilers, low-temperature boilers typically operate at temperatures between 100℃ and 200℃, with lower steam pressures. After use, ash easily accumulates inside the economizer of a low-temperature boiler, leading to deteriorated heat transfer, higher flue gas temperatures, reduced economizer efficiency, and in severe cases, blockage of the economizer, rendering it unusable and significantly shortening its lifespan. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a high-temperature economizer for low-temperature high-efficiency boilers, which can perform ash removal operations and ensure the thermal conductivity of the high-temperature economizer.

[0004] The technical solution adopted by this utility model is: a low-temperature high-efficiency boiler high-temperature economizer, including an outer shell and an insulated water tank. The outer shell has a flue gas inlet and a flue gas outlet. A heat exchange pipe is provided on the shell between the flue gas inlet and the flue gas outlet. The two ends of the heat exchange pipe are connected to the water inlet and the water outlet of the insulated water tank. A soot treatment mechanism is provided inside the shell. The soot treatment mechanism includes a cylindrical filter screen and a vibration dust removal mechanism located at the lower end of the cylindrical filter screen. The upper end and the lower end of the cylindrical filter screen are connected to the flue gas inlet and the flue gas outlet, respectively.

[0005] Preferably, the outer wall of the heat exchange pipe is provided with spiral fins.

[0006] Preferably, a water pump is provided between the heat exchange pipe and the insulated water tank, the outer wall of the insulated water tank is provided with an insulation cavity, and the flue outlet is connected to the insulation cavity.

[0007] Preferably, the outer wall of the insulated water tank is provided with heat-conducting fins.

[0008] Preferably, the vibration dust removal mechanism includes a transmission ring disposed in the smoke outlet and a spring connected to the transmission ring. The transmission ring is connected to the lower end of the cylindrical filter screen, and the other end of the spring is connected to a vibration ring. A vibration motor is disposed on the outer shell, and the output end of the vibration motor is connected to the vibration ring in a transmission manner.

[0009] Preferably, the inner ring of the transmission ring is provided with a dust filter.

[0010] Preferably, the smoke outlet is connected to the insulation cavity through a smoke outlet pipe, and a dust collection box is provided on the smoke outlet pipe. The dust collection box is located directly below the smoke outlet of the outer shell, and the dust collection box is provided with a movable door.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a low-temperature high-efficiency boiler high-temperature economizer, which can perform ash removal operations. When the flue gas passes through the economizer, it will be filtered through a cylindrical filter screen to prevent excessive ash powder from adhering to the heat exchange pipes. When a large amount of ash powder accumulates on the cylindrical filter screen, the cylindrical filter screen is driven to vibrate by a vibration dust removal mechanism, thereby shaking off the ash powder and discharging it through the flue gas outlet. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a low-temperature high-efficiency boiler high-temperature economizer according to the present invention.

[0013] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0014] Explanation of reference numerals in the attached drawings: 1. Outer shell; 101. Smoke inlet; 102. Smoke outlet; 103. Heat exchange pipe; 1031. Spiral fins; 104. Cylindrical filter screen; 105. Drive ring; 106. Spring; 107. Vibration ring; 108. Vibration motor; 109. Smoke and dust filter screen; 110. Smoke outlet pipe; 111. Dust collection box; 112. Movable door; 2. Insulated water tank; 201. Water pump; 202. Insulation cavity; 203. Heat-conducting fins. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] like Figure 1 and Figure 2 As shown, this embodiment provides a high-temperature economizer for a low-temperature high-efficiency boiler, which includes an outer shell 1 and an insulated water tank 2. The outer shell 1 has a flue gas inlet 101 and a flue gas outlet 102. A heat exchange pipe 103 is provided on the shell between the flue gas inlet 101 and the flue gas outlet 102. The two ends of the heat exchange pipe 103 are connected to the water inlet and the water outlet of the insulated water tank 2. A soot treatment mechanism is provided inside the shell. The soot treatment mechanism includes a cylindrical filter screen 104 and a vibration dust removal mechanism provided at the lower end of the cylindrical filter screen 104. The upper end and the lower end of the cylindrical filter screen 104 are respectively connected to the flue gas inlet 101 and the flue gas outlet 102.

[0017] The outer wall of the heat exchange pipe 103 is provided with spiral fins 1031. A water pump 201 is provided between the heat exchange pipe 103 and the insulated water tank 2. The outer wall of the insulated water tank 2 is provided with an insulation cavity 202. The flue gas outlet 102 is connected to the insulation cavity 202. The flue gas after heat exchange still has heat. By passing it to the outer wall of the insulated water tank 2, it can play a certain role in heating and heat preservation of the water in the insulated water tank 2, thereby increasing the temperature of the water entering the boiler. The outer wall of the insulated water tank 2 is provided with heat-conducting fins 203. The spiral fins 1031 and the heat-conducting fins 203 can increase the heat conduction area and improve the heat conduction efficiency.

[0018] In this embodiment, the vibration dust removal mechanism includes a transmission ring 105 disposed in the smoke outlet 102 and a spring 106 connected to the transmission ring 105. The transmission ring 105 is connected to the lower end of the cylindrical filter screen 104, and the other end of the spring 106 is connected to a vibration ring 107. A vibration motor 108 is provided on the outer shell 1, and the output end of the vibration motor 108 is connected to the vibration ring 107. When performing dust removal operations, the vibration motor 108 is started, and the vibration is transmitted to the cylindrical filter screen 104 through the vibration ring 107, the spring 106 and the transmission ring 105, thereby shaking the dust off the cylindrical filter screen 104.

[0019] The inner ring of the transmission ring 105 is provided with a smoke and dust filter 109, which can filter the flue gas and prevent some smoke and dust from directly entering the insulation cavity 202. The smoke outlet 102 is connected to the insulation cavity 202 through the smoke outlet pipe 110. The smoke outlet pipe 110 is provided with a dust collection box 111. The dust collection box 111 is located directly below the smoke outlet 102 of the outer shell 1. The dust collection box 111 is provided with a movable door 112. During the dust removal operation, the fallen dust falls into the dust collection box 111. After the dust removal operation is completed, the movable door 112 is opened to collect the dust.

[0020] This embodiment of a low-temperature high-efficiency boiler high-temperature economizer is capable of ash removal. When flue gas passes through the economizer, it is filtered by a cylindrical filter screen 104 to prevent excessive ash from adhering to the heat exchange pipe 103. When a large amount of ash accumulates on the cylindrical filter screen 104, the cylindrical filter screen 104 is driven to vibrate by a vibration dust removal mechanism, thereby shaking off the ash and discharging it through the flue gas outlet 102.

[0021] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A low-temperature high-efficiency boiler high-temperature economizer, characterized in that: The application relates to a heat exchange type smoke filter, which comprises a shell and a heat preservation water tank, the shell is provided with a smoke inlet and a smoke outlet, heat exchange pipes are arranged between the smoke inlet and the smoke outlet, the two ends of the heat exchange pipes are communicated with the water inlet and the water outlet of the heat preservation water tank, an ash treatment mechanism is arranged in the shell, the ash treatment mechanism comprises a cylindrical filter screen and a vibration dust removal mechanism arranged at the lower end of the cylindrical filter screen, the upper end and the lower end of the cylindrical filter screen are communicated with the smoke inlet and the smoke outlet respectively.

2. The high-efficiency low-temperature boiler high-temperature economizer according to claim 1, characterized in that: The outer wall of the heat exchange pipe is provided with spiral fins.

3. The high-efficiency low-temperature boiler high-temperature economizer according to claim 1, characterized in that: A water pump is arranged between the heat exchange pipe and the heat preservation water tank, the outer wall of the heat preservation water tank is provided with a heat preservation cavity, and the smoke outlet is communicated with the heat preservation cavity.

4. The high-efficiency low-temperature boiler high-temperature economizer according to claim 3, characterized in that: The outer wall of the heat preservation water tank is provided with heat conduction fins.

5. The high-efficiency low-temperature boiler high-temperature economizer according to claim 1, characterized in that: The vibration dust removal mechanism comprises a transmission ring arranged in the smoke outlet and a spring connected to the transmission ring, the transmission ring is connected with the lower end of the cylindrical filter screen, the other end of the spring is connected with a vibration ring, a vibration motor is arranged on the shell, and the output end of the vibration motor is drivingly connected with the vibration ring.

6. A high-efficiency low-temperature boiler high-temperature economizer according to claim 5, characterized in that: The inner ring of the transmission ring is provided with a smoke dust filter screen.

7. The high-efficiency low-temperature boiler high-temperature economizer according to claim 1, characterized in that: The smoke outlet is communicated with the heat preservation cavity through a smoke outlet pipeline, a dust collecting box is arranged on the smoke outlet pipeline, the dust collecting box is arranged directly below the smoke outlet of the shell, and a movable door is arranged on the dust collecting box.

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