Waste heat recycling device for heater

Abstract

The utility model relates to the technical field of heater waste heat recovery, and discloses a heater waste heat recycling device which comprises a heating network heater body, a water inlet pipeline and a water drainage pipeline are fixedly installed on the upper surface and the lower surface of the heating network heater body, and the water inlet pipeline and the water drainage pipeline are both communicated with the interior of the heating network heater body. The preheating box is placed on the lower surface of the heating network heater body, the preheating mechanism is arranged on the preheating box and comprises a first connecting pipeline and a first water inlet pipeline, the first connecting pipeline is fixedly connected with the lower end of the drainage pipeline, and the first connecting pipeline communicates with the interior of the drainage pipeline; drain water generated during heating of the interior of the heating network heater body enters the first connecting pipeline to heat the interior of the preheating box, water flowing through the interior of the preheating box subsequently is preheated, the working efficiency of the heating network heater body is improved, energy loss is reduced, and therefore the heat supply efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery of heaters, and particularly relates to a device for recovering and utilizing waste heat of a heater. Background Technique

[0002] With the continuous acceleration of the urbanization pace in counties, the contradiction between the demand for centralized heating in towns and the insufficient heating supply capacity has become increasingly prominent. Centralized heating and long-distance heating are conducive to improving the utilization rate of large-scale cogeneration units and reducing the consumption of fossil energy and carbon emissions caused by decentralized boiler heating.

[0003] The steam condensate generated during the heating of the existing heat network heater contains relatively high heat energy. Usually, it enters the condensate tank and then enters the deaerator for reuse. However, energy loss and waste will occur during this process, which will affect the power generation of the steam turbine, the heating efficiency, and is not conducive to the use of the heat network heater. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a device for recovering and utilizing waste heat of a heater, which solves the problem that usually it enters the condensate tank and then enters the deaerator for reuse, but energy loss and waste will occur during this process, which will affect the power generation of the steam turbine, the heating efficiency, and is not conducive to the use of the heat network heater.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: A device for recovering and utilizing waste heat of a heater, including the main body of the heat network heater, an inlet pipe and a drain pipe are fixedly installed on the upper and lower surfaces of the main body of the heat network heater, both the inlet pipe and the drain pipe are communicated with the inside of the main body of the heat network heater, and a preheating tank is placed on the lower surface of the main body of the heat network heater;

[0008] A preheating mechanism is arranged on the preheating tank. The preheating mechanism includes a first connecting pipe and a first inlet pipe. The first connecting pipe is fixedly connected to the lower end of the drain pipe, and the first connecting pipe is communicated with the inside of the drain pipe. The lower end of the first connecting pipe penetrates into the inside of the preheating tank. A water storage tank is placed behind the main body of the heat network heater. The first inlet pipe is fixedly installed on the front surface of the water storage tank, the first inlet pipe is communicated with the inside of the water storage tank, and the front end of the first inlet pipe penetrates into the inside of the preheating tank.

[0009] Preferably, the preheating mechanism further includes a second connecting pipe and a flaring tool. A first water pump is placed behind the heat network heater body. The second connecting pipe is fixedly installed on the input end of the first water pump. The front end of the second connecting pipe penetrates into the interior of the preheating tank. The flaring tool is fixedly installed at the front end of the second connecting pipe, and the flaring tool corresponds to the first connecting pipe vertically.

[0010] Preferably, a drain flash tank is placed behind the first water pump. A third connecting pipe is fixedly installed at the output end of the first water pump. One end of the third connecting pipe away from the first water pump penetrates into the interior of the drain flash tank.

[0011] Preferably, a second water pump is placed on the left side of the preheating tank. The front end of the first water inlet pipe penetrates to the left surface of the preheating tank. The input end of the second water pump is fixedly connected to the first water inlet pipe. A second water inlet pipe is fixedly installed at the output end of the second water pump. One end of the second water inlet pipe away from the second water pump is fixedly connected to the water inlet pipe.

[0012] Preferably, a temperature display is fixedly installed on the front surface of the preheating tank. A temperature sensor is fixedly installed inside the preheating tank. The temperature display is electrically connected to the temperature sensor.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present utility model provides a device for recovering and utilizing the waste heat of a heater, having the following beneficial effects:

[0015] 1. For the device for recovering and utilizing the waste heat of the heater, the condensed water generated during the heating inside the heat network heater body enters the interior of the first connecting pipe, heats the interior of the preheating tank, preheats the water flowing through the interior of the preheating tank subsequently, improves the working efficiency of the heat network heater body, reduces energy consumption, and thus improves the heating efficiency.

[0016] 2. For the device for recovering and utilizing the waste heat of the heater, after the condensed water reaches the lower end of the first connecting pipe, it falls into the interior of the flaring tool and the second connecting pipe, making the condensed water fully exposed inside the preheating tank when it falls, reducing the loss of the condensed water during heat release, and thus further reducing energy consumption and improving the usage efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic top view structure diagram of the overall device for recovering and utilizing the waste heat of the heater of the present utility model;

[0018] Figure 2 is a schematic front sectional view structure diagram of the interior of the device for recovering and utilizing the waste heat of the heater of the present utility model;

[0019] Figure 3Schematic diagram of the internal sectional top view of the waste heat recovery and utilization device of the heater of the present utility model;

[0020] Figure 4 Schematic diagram of the overall rear view of the waste heat recovery and utilization device of the heater of the present utility model.

[0021] In the figure: 1. Main body of the heat network heater; 2. Water inlet pipe; 3. Drain pipe; 4. Preheating tank; 5. First connecting pipe; 6. First water inlet pipe; 7. Water storage tank; 8. Second connecting pipe; 9. Flaring tool; 10. Drain expansion vessel; 11. First water pump; 12. Third connecting pipe; 13. Second water pump; 14. Second water inlet pipe; 15. Temperature display; 16. Temperature sensor. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 - 4 , the present utility model provides a new technical solution: a waste heat recovery and utilization device for a heater, including the main body 1 of the heat network heater. The upper surface and the lower surface of the main body 1 of the heat network heater are fixedly installed with a water inlet pipe 2 and a drain pipe 3. Both the water inlet pipe 2 and the drain pipe 3 are communicated with the inside of the main body 1 of the heat network heater. A preheating tank 4 is placed on the lower surface of the main body 1 of the heat network heater;

[0024] A preheating mechanism is arranged on the preheating tank 4. The preheating mechanism includes a first connecting pipe 5 and a first water inlet pipe 6. The lower end of the first connecting pipe 5 is fixedly connected to the lower end of the drain pipe 3. The inside of the first connecting pipe 5 is communicated with the inside of the drain pipe 3. The lower end of the first connecting pipe 5 penetrates into the inside of the preheating tank 4. A water storage tank 7 is placed behind the main body 1 of the heat network heater. The first water inlet pipe 6 is fixedly installed on the front surface of the water storage tank 7. The inside of the first water inlet pipe 6 is communicated with the inside of the water storage tank 7. The front end of the first water inlet pipe 6 penetrates into the inside of the preheating tank 4.

[0025] Furthermore, by making the drain water generated when the inside of the main body 1 of the heat network heater is heated enter the inside of the first connecting pipe 5, the inside of the preheating tank 4 is heated, so that the water flowing through the inside of the preheating tank 4 subsequently is preheated, improving the working efficiency of the main body 1 of the heat network heater, reducing energy loss, and thus improving the heating efficiency.

[0026] Further, the preheating mechanism further includes a second connecting pipe 8 and a flaring tool 9. A first water pump 11 is placed behind the heat network heater body 1. The second connecting pipe 8 is fixedly installed on the input end of the first water pump 11. The front end of the second connecting pipe 8 penetrates into the interior of the preheating tank 4. The flaring tool 9 is fixedly installed at the front end of the second connecting pipe 8, and the flaring tool 9 corresponds to the first connecting pipe 5 vertically.

[0027] Further, after the condensed water reaches the lower end of the first connecting pipe 5 and then falls into the interior of the flaring tool 9 and the second connecting pipe 8, when the condensed water falls, it is completely exposed inside the preheating tank 4, reducing the loss of the condensed water during heat release, thereby further reducing energy loss and improving the use efficiency of the device.

[0028] Further, a condensate flash tank 10 is placed behind the first water pump 11. The condensate flash tank 10 is a prior art and will not be elaborated here. The output end of the first water pump 11 is fixedly installed with a third connecting pipe 12. The end of the third connecting pipe 12 away from the first water pump 11 penetrates into the interior of the condensate flash tank 10.

[0029] Further, a second water pump 13 is placed on the left side of the preheating tank 4. The front end of the first water inlet pipe 6 penetrates to the left surface of the preheating tank 4. The input end of the second water pump 13 is fixedly connected to the first water inlet pipe 6. The output end of the second water pump 13 is fixedly installed with a second water inlet pipe 14. The end of the second water inlet pipe 14 away from the second water pump 13 is fixedly connected to the water inlet pipe 2.

[0030] Further, a temperature display 15 is fixedly installed on the front surface of the preheating tank 4. A temperature sensor 16 is fixedly installed inside the preheating tank 4. The temperature display 15 is electrically connected to the temperature sensor 16.

[0031] Working principle: When using this device, start the second water pump 13. The second water pump 13 pumps out the water inside the water storage tank 7 through the first water inlet pipe 6, making it pass through the first water inlet pipe 6, pass through the second water pump 13, and enter the second water inlet pipe 14 fixedly connected to the output end of the second water pump 13. Then it enters the inside of the water inlet pipe 2 through the second water inlet pipe 14, and then enters the inside of the heat network heater body 1. It flows in the heating pipes inside the heat network heater body 1. At this time, through the steam inlet pipe on the heat network heater body 1, steam enters the inside of the heat network heater body 1 and heats the water in the heating pipes inside the heat network heater body 1. When the water in the heating pipes inside the heat network heater body 1 reaches the water outlet pipe on the heat network heater body 1, the heating is completed, and heating is carried out in this way. During the heating process, the generated condensed water falls to the end of the heat network heater body 1, and then flows out through the condensate drain pipe 3 fixedly installed at the lower end of the heat network heater body 1 and flows into the inside of the first connecting pipe 5 fixedly connected to the condensate drain pipe 3. Then it enters the inside of the preheating tank 4 through the inside of the first connecting pipe 5. After the condensed water enters the inside of the preheating tank 4, it reaches the lower end of the first connecting pipe 5 and falls into the flaring device 9 at the lower end of the first connecting pipe 5. Then it enters the inside of the second connecting pipe 8 fixedly connected to the flaring device 9 through the flaring device 9. When the condensed water flows through the pipe inside the first connecting pipe 5 and falls inside the preheating tank 4, it continuously releases heat and heats the inside of the preheating tank 4. Because there are no obstacles when falling, the heat release of the condensed water is maximized to heat the inside of the preheating tank 4. At this time, the first water pump 11 connected to the second connecting pipe 8 is started. The first water pump 11 pumps the condensed water falling into the second connecting pipe 8 into its inside. When moving inside the second connecting pipe 8, it also releases heat to the inside of the preheating tank 4, raising the temperature inside the preheating tank 4. The temperature inside the preheating tank 4 is detected by the temperature sensor 16, and the temperature value is displayed through the temperature display 15. When the subsequent water moves inside the first water inlet pipe 6 and flows through the inside of the preheating tank 4, the temperature rise inside the preheating tank 4 raises the temperature of the water inside the first water inlet pipe 6, preheating the water to be heated and reducing energy consumption. The water pumped by the first water pump 11 enters the inside of the condensate flash tank 10 through the third connecting pipe 12 to process the condensed water.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for recovering and utilizing the waste heat of a heater, comprising a heat network heater body (1), an inlet pipe (2) and a drain pipe (3) are fixedly installed on the upper and lower surfaces of the heat network heater body (1), the inlet pipe (2) and the drain pipe (3) are both communicated with the inside of the heat network heater body (1), and it is characterized in that: The lower surface of the heat network heater body (1) is placed with a preheating box (4); Preheating mechanism, the preheating mechanism is arranged on the preheating box (4), the preheating mechanism includes a first connecting pipe (5) and a first water inlet pipe (6), the first connecting pipe (5) is fixedly connected to the lower end of the drain pipe (3), the inside of the first connecting pipe (5) is communicated with the inside of the drain pipe (3), the lower end of the first connecting pipe (5) penetrates into the inside of the preheating box (4), a water storage tank (7) is placed behind the heat network heater body (1), the first water inlet pipe (6) is fixedly installed on the front surface of the water storage tank (7), the inside of the first water inlet pipe (6) is communicated with the inside of the water storage tank (7), and the front end of the first water inlet pipe (6) penetrates into the inside of the preheating box (4).

2. The waste heat recovery and utilization device of a heater according to claim 1, characterized in that: The preheating mechanism further includes a second connecting pipe (8) and a flaring tool (9), a first water pump (11) is placed behind the heat network heater body (1), the second connecting pipe (8) is fixedly installed on the input end of the first water pump (11), the front end of the second connecting pipe (8) penetrates into the inside of the preheating box (4), the flaring tool (9) is fixedly installed at the front end of the second connecting pipe (8), and the flaring tool (9) is vertically corresponding to the first connecting pipe (5).

3. The waste heat recovery and utilization device of a heater according to claim 2, characterized in that: A drain expansion vessel (10) is placed behind the first water pump (11), the output end of the first water pump (11) is fixedly installed with a third connecting pipe (12), and one end of the third connecting pipe (12) away from the first water pump (11) penetrates into the inside of the drain expansion vessel (10).

4. A device for recovering and utilizing the waste heat of a heater according to claim 1, characterized in that: A second water pump (13) is placed on the left side of the preheating box (4), the front end of the first water inlet pipe (6) penetrates to the left surface of the preheating box (4), the input end of the second water pump (13) is fixedly connected to the first water inlet pipe (6), the output end of the second water pump (13) is fixedly installed with a second water inlet pipe (14), and one end of the second water inlet pipe (14) away from the second water pump (13) is fixedly connected to the water inlet pipe (2).

5. The waste heat recovery and utilization device of a heater according to claim 1, characterized in that: A temperature display (15) is fixedly installed on the front surface of the preheating box (4), a temperature sensor (16) is fixedly installed inside the preheating box (4), and the temperature display (15) is electrically connected to the temperature sensor (16).

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