Waste heat recycling mechanism for thermal power plant

Abstract

The utility model relates to the technical field of thermal power plants, and provides a thermal power plant waste heat recycling mechanism which comprises a main box body, the lower end of the main box body is fixedly connected with a heating component, the upper end of the main box body is fixedly connected with a top cover, and a water inlet groove is formed in the upper end of the top cover in a penetrating mode. A recycling assembly is fixedly arranged in the main box body, and a cleaning assembly used for removing water drops attached to the outer surface of the main box body is slidably connected to the outer surface of the main box body. A telescopic rod is controlled to stretch out and draw back to push a cleaning circular ring to reciprocate on the outer surface of the main box body along a groove, and at the moment, small water drops attached to the outer surface of the main box body can be effectively cleaned under the action of the cleaning circular ring, so that the cleaning influence of water vapor and water drops on a container is reduced; and more frequent cleaning and maintenance are not needed, and the problem that small water drops attached to the outer surface of the main box body cannot be conveniently cleaned in time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power plants, and in particular to a waste heat recovery and utilization mechanism for thermal power plants. Background Art

[0002] Thermal power plants generally refer to thermal power plants, cogeneration plants, etc. It is a plant that converts the heat energy generated by the combustion of solid and liquid fuels such as coal, oil, and natural gas into kinetic energy to produce electricity. According to the type of fuel, it can be divided into coal-fired thermal power plants, oil-fired thermal power plants, and gas-fired thermal power plants. After heating the water, the boiler of a thermal power plant needs to use a hot water pipe to transport the hot water to the inside of the steam turbine. In the process of boiling the water in the boiler, water vapor will float out, otherwise it will cause the internal air pressure of the boiler to increase, thus causing the boiler to explode. Since this type of water vapor has a large amount of heat, it is necessary to recycle the waste heat of the thermal power plant boiler to improve the utilization rate of resources.

[0003] The patent with announcement number CN219977159U discloses a waste heat recovery mechanism for a thermal power plant. By using the water inlet, cold water can be poured into the recovery sleeve, and then the vertical boiler can work normally. The water vapor generated when the vertical boiler is working will enter the circulation pipe through the air inlet pipe. Because the circulation pipe is in cold water at this time, the wall temperature of the circulation pipe is reduced, so the high-temperature water vapor inside it will be pre-cooled and release heat, thereby completing the heat exchange with the cold water to achieve the purpose of heating the cold water, and the spiral circulation The tube can not only increase the heat exchange time between water vapor and cold water, but also enable the liquefied water vapor to flow from it to the outlet pipe and finally flow out of the recovery sleeve to reduce the residual amount of water droplets in the circulation pipe, so that the subsequent water vapor will not exchange heat with these water droplets. When the cold water in the containing chamber is heated, the valve body can be opened to allow it to flow out through the outlet pipe. The user can pour the hot water into the boiler and boil it, thereby reducing the resources required to boil the water and achieving the purpose of utilizing the waste heat in the water vapor.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: during the use of the above device, the evaporated water vapor in the process of heating the water liquid will adhere to the outer surface of the container to form small water droplets. If the small water droplets are not cleaned and removed in time, the water vapor and water droplets will affect the cleanliness of the container, thereby requiring more frequent cleaning and maintenance of the container. Therefore, further improvement is needed. Utility Model Content

[0005] The utility model provides a waste heat recovery and utilization mechanism for a thermal power plant, which solves the problem in the related art that it is inconvenient to clean and remove small water drops attached to the outer surface of the main box body in a timely manner.

[0006] The technical solution of the utility model is as follows:

[0007] A waste heat recovery mechanism for a thermal power plant comprises a main box body, a heating component is fixedly connected to the lower end of the main box body, a top cover is fixedly connected to the upper end of the main box body, a water inlet trough is penetrated through the upper end of the top cover, a recovery component for recovering the waste heat of the thermal power plant to improve resource utilization is fixedly arranged inside the main box body, and a cleaning component for removing water droplets attached to the outer surface of the main box body is slidably connected to the outer surface of the main box body.

[0008] Preferably, the recycling assembly comprises a cross-shaped connecting rod fixedly arranged on the inner wall of the main box body, and a circular groove is penetrated through the outer surface of the main box body.

[0009] Preferably, one end of the cross-shaped connecting rod is fixedly connected to a water collecting ring, and a filter is fixedly connected to the inner wall of the water collecting ring.

[0010] Preferably, the lower end of the water collecting ring is fixedly connected to a Z-shaped pipe, and the lower end of the Z-shaped pipe is fixedly connected to an annular downcomer pipe.

[0011] Preferably, a fixing rod is fixedly connected to the outer surface of the annular downcomer, and one end of the fixing rod is fixedly connected to the inner wall of the main box body.

[0012] Preferably, the lower end of the annular downcomer is fixedly connected to an L-shaped water outlet pipe, and the L-shaped water outlet pipe passes through the interior of the circular groove.

[0013] Preferably, the outer surface of the L-shaped water outlet pipe is fixedly connected to the inner wall of the circular groove, and a valve is arranged on the outer surface of the L-shaped water outlet pipe.

[0014] Preferably, the cleaning assembly comprises a groove formed on the outer surface of the main housing, and a cleaning ring is slidably connected to the outer surface of the main housing.

[0015] Preferably, a protrusion is fixedly connected to the inner wall of the cleaning ring, and a telescopic rod is fixedly connected to the inner wall of the groove.

[0016] Preferably, the protrusion is slidably connected to the groove, and the upper end of the telescopic rod is fixedly connected to the lower end of the protrusion.

[0017] The working principle and beneficial effects of the utility model are:

[0018] 1. The utility model takes out the water and pours it into the water tank, and the water flows to the inside of the water collecting ring, that is, the upper end of the filter screen. At this time, the filter screen will block the impurities and foreign objects in the water at the upper end of the filter screen, and the water flows to the inside of the Z-tube, and then moves along the annular downpipe and the L-shaped outlet pipe in sequence. At this time, the heating component heats the annular downpipe inside the main box, that is, the waste heat of the thermal power plant heats the water inside the annular downpipe. When the water reaches the heating temperature requirement, the staff opens the valve, and the heated water can be collected through the L-shaped outlet pipe outside the main box.

[0019] 2. The utility model forms small water droplets by virtue of the fact that the evaporated water vapor adheres to the outer surface of the main box body during the heating process of the water liquid. When the small water droplets need to be eliminated, the staff controls the telescopic rod to extend and retract to push the cleaning ring to reciprocate along the groove on the outer surface of the main box body. At this time, the small water droplets attached to the outer surface of the main box body can be effectively cleaned under the action of the cleaning ring, thereby reducing the cleaning effect of water vapor and water droplets on the container, making it unnecessary to perform more frequent cleaning and maintenance, and solving the problem of inconvenience in timely cleaning and removing the small water droplets attached to the outer surface of the main box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the main box structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the recycling component structure of the utility model;

[0024] Figure 4 It is a schematic diagram of the cleaning ring structure of the utility model.

[0025] In the figure: 1. main box body; 2. heating component; 3. top cover; 4. water inlet; 5. recycling component; 51. circular groove; 52. water collecting ring; 521. cross-shaped connecting rod; 522. filter; 53. Z-shaped pipe; 54. annular downpipe; 55. fixing rod; 56. L-shaped outlet pipe; 57. valve; 6. cleaning component; 61. groove; 62. telescopic rod; 63. cleaning ring; 64. bump. DETAILED DESCRIPTION

[0026] The following will be combined with 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 of 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.

[0027] like Figure 1 As shown, this embodiment proposes a waste heat recovery mechanism for a thermal power plant, including a main box body 1, a heat generating component 2 is fixedly connected to the lower end of the main box body 1, a top cover 3 is fixedly connected to the upper end of the main box body 1, a water inlet 4 is penetrated through the upper end of the top cover 3, a recycling component 5 for recycling the waste heat of the thermal power plant to improve resource utilization is fixedly arranged inside the main box body 1, and a cleaning component 6 for removing water droplets attached to the outer surface of the main box body 1 is slidably connected to the outer surface of the main box body 1.

[0028] like Figure 2 As shown, a circular groove 51 is formed on the outer surface of the main box body 1, a filter screen 522 is fixedly connected to the inner wall of the water collecting ring 52, and the cleaning component 6 includes a groove 61 formed on the outer surface of the main box body 1, a telescopic rod 62 is fixedly connected to the inner wall of the groove 61, the circular groove 51 facilitates the L-shaped water outlet pipe 56 to extend into the interior of the main box body 1, and the telescopic rod 62 can push the cleaning ring 63 to move along the groove 61 on the outer surface of the main box body 1.

[0029] like Figure 3 As shown, the recycling component 5 includes a cross-shaped connecting rod 521 fixedly arranged on the inner wall of the main box body 1, one end of the cross-shaped connecting rod 521 is fixedly connected to a water collecting ring 52, the lower end of the water collecting ring 52 is fixedly connected to a Z-shaped pipe 53, the lower end of the Z-shaped pipe 53 is fixedly connected to an annular downpipe 54, a fixing rod 55 is fixedly connected to the outer surface of the annular downpipe 54, one end of the fixing rod 55 is fixedly connected to the inner wall of the main box body 1, the lower end of the annular downpipe 54 is fixedly connected to an L-shaped outlet pipe 56, and the L-shaped outlet pipe 56 is fixedly connected to the inner wall of the main box body 1. The water pipe 56 passes through the interior of the circular groove 51, and the outer surface of the L-shaped water outlet pipe 56 is fixedly connected to the inner wall of the circular groove 51. A valve 57 is arranged on the outer surface of the L-shaped water outlet pipe 56. The fixing rod 55 is used to fix the annular downpipe 54 to the inner wall of the main box body 1. The existence of the annular downpipe 54 allows the water to flow along the shape of the annular downpipe 54 under the action of gravity. The annular downpipe 54 can heat the flowing water to the greatest extent, thereby increasing the utilization rate of waste heat. The valve 57 can control the water outlet of the L-shaped water outlet pipe 56.

[0030] like Figure 4As shown, a cleaning ring 63 is slidably connected to the outer surface of the main box body 1, a protrusion 64 is fixedly connected to the inner wall of the cleaning ring 63, a telescopic rod 62 is fixedly connected to the inner wall of the groove 61, the protrusion 64 is slidably connected to the groove 61, the upper end of the telescopic rod 62 is fixedly connected to the lower end of the protrusion 64, and the cleaning ring 63 is used to clean water droplets attached to the outer surface of the main box body 1.

[0031] The working principle and instructions for use of the utility model are as follows: when it is necessary to recycle the waste heat of the thermal power plant, first the staff needs to take out the water and pour it into the water tank 4, and the water then flows to the inside of the water collecting ring 52, that is, the upper end of the filter 522. At this time, the filter 522 will block the impurities and foreign matter in the water at the upper end of the filter 522, and the water then flows to the inside of the Z-tube 53, and then moves along the annular downpipe 54 and the L-shaped outlet pipe 56 in turn. At this time, the heating component 2 will heat the annular downpipe 54 inside the main box 1, that is, the waste heat of the thermal power plant heats the water inside the annular downpipe 54. When the water reaches the heating point, the water inside the annular downpipe 54 is heated. When the temperature requirement is met, the staff opens the valve 57. At this time, the staff can collect the heated water outside the main box body 1 through the L-shaped water outlet pipe 56. During the heating process of the water, the evaporated water vapor will adhere to the outer surface of the main box body 1 to form small water droplets. When it is necessary to eliminate the small water droplets, the staff controls the telescopic rod 62 to extend and retract and push the cleaning ring 63 to reciprocate along the groove 61 on the outer surface of the main box body 1. At this time, under the action of the cleaning ring 63, the small water droplets attached to the outer surface of the main box body 1 can be effectively cleaned, thereby reducing the cleaning effect of water vapor and water droplets on the container, so that it does not need more frequent cleaning and maintenance.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste heat recovery mechanism for a thermal power plant, comprising a main box (1), a heating component (2) fixedly connected to the lower end of the main box (1), a top cover (3) fixedly connected to the upper end of the main box (1), a water inlet trough (4) penetrating the upper end of the top cover (3), characterized in that: A recycling component (5) for recycling waste heat from a thermal power plant to improve resource utilization is fixedly arranged inside the main box body (1), and a cleaning component (6) for removing water droplets attached to the outer surface of the main box body (1) is slidably connected to the outer surface of the main box body (1).

2. A waste heat recovery mechanism for a thermal power plant according to claim 1, characterized in that: The recycling assembly (5) comprises a cross-shaped connecting rod (521) fixedly arranged on the inner wall of the main box body (1), and a circular groove (51) is formed through the outer surface of the main box body (1).

3. A waste heat recovery mechanism for a thermal power plant according to claim 2, characterized in that: One end of the cross-shaped connecting rod (521) is fixedly connected to a water collecting ring (52), and a filter screen (522) is fixedly connected to the inner wall of the water collecting ring (52).

4. A waste heat recovery mechanism for a thermal power plant according to claim 3, characterized in that: The lower end of the water collecting ring (52) is fixedly connected to a Z-shaped pipe (53), and the lower end of the Z-shaped pipe (53) is fixedly connected to an annular downcomer pipe (54).

5. A waste heat recovery mechanism for a thermal power plant according to claim 4, characterized in that: A fixing rod (55) is fixedly connected to the outer surface of the annular downpipe (54), and one end of the fixing rod (55) is fixedly connected to the inner wall of the main box body (1).

6. A waste heat recovery mechanism for a thermal power plant according to claim 5, characterized in that: The lower end of the annular downpipe (54) is fixedly connected to an L-shaped water outlet pipe (56), and the L-shaped water outlet pipe (56) passes through the interior of the circular groove (51).

7. A waste heat recovery mechanism for a thermal power plant according to claim 6, characterized in that: The outer surface of the L-shaped water outlet pipe (56) is fixedly connected to the inner wall of the circular groove (51), and a valve (57) is arranged on the outer surface of the L-shaped water outlet pipe (56).

8. The waste heat recovery and utilization mechanism of a thermal power plant according to claim 1, characterized in that: The cleaning assembly (6) comprises a groove (61) formed on the outer surface of the main housing (1), and a cleaning ring (63) is slidably connected to the outer surface of the main housing (1).

9. A waste heat recovery mechanism for a thermal power plant according to claim 8, characterized in that: A protrusion (64) is fixedly connected to the inner wall of the cleaning ring (63), and a telescopic rod (62) is fixedly connected to the inner wall of the groove (61).

10. A waste heat recovery mechanism for a thermal power plant according to claim 9, characterized in that: The protrusion (64) is slidably connected to the groove (61), and the upper end of the telescopic rod (62) is fixedly connected to the lower end of the protrusion (64).

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