CN217503677U - Heating system for unloading platform of garbage bin - Google Patents

Abstract

The utility model discloses a garbage bin discharging platform heating system, which comprises an air preheater, a steam pocket and a steam turbine, the air preheater is connected with the steam drum and the steam turbine, a warm air blower is arranged in the garbage bin discharging platform, the low-pressure condensed water outlet of the air preheater is connected with the medium inlet of the warm air blower through a water inlet pipeline, the primary air condensed water is used as a heat source to enter the warm air blower, a medium outlet of the warm air blower is connected with a water outlet pipeline, a garbage bin discharging platform heating system is redesigned in the scheme, the primary air low-pressure drain of the air preheater is used as a heat source to supply heat to a warm air blower in the garbage bin discharging platform, the warm air blower extracts air, the air flows into the platform after heat exchange, and then improve the temperature in the platform, the temperature in the platform promotes the fermentation effect that improves rubbish, helps the exhaust moisture, improves the combustion effect at burning furnace, and the rational planning utilizes, improves economic benefits.

Description

Heating system for unloading platform of garbage bin

technical field

The utility model relates to the technical field of garbage disposal, in particular to a heating system for a discharge platform of a garbage bin.

Background technique

The garbage bin freezes with rain and snow in the low temperature season, resulting in low temperature in the platform, poor fermentation effect of garbage at low temperature, and more water. In the incinerator, the garbage is prone to insufficient combustion and unstable furnace temperature, which requires a large amount of fuel for combustion, which has poor economic benefits and needs to be improved.

Utility model content

In order to solve the above-mentioned at least one technical defect, the utility model provides the following technical solutions:

This application document discloses a heating system for the unloading platform of the garbage bin, including an air preheater, a steam drum, and a steam turbine. The air preheater is connected to the steam drum and the steam turbine. A heater is arranged in the unloading platform of the garbage bin. The low-pressure condensate water outlet of the heater is connected to the medium inlet of the heater through the water inlet pipe, and the primary air condensate water is used as a heat source to enter the heater, and the medium outlet of the heater is connected to the water outlet pipe.

In this scheme, the heating system of the unloading platform of the waste bin is redesigned, and the primary air low-pressure drain of the air preheater is used as the heat source to supply heat to the heater in the unloading platform of the waste bin, and the air is extracted through the heater and flows into the platform after heat exchange. In addition, the temperature in the platform is increased, and the temperature increase in the platform can improve the fermentation effect of garbage, help to discharge moisture, improve the combustion effect in the incinerator, and rationally plan and utilize it to improve economic benefits.

Further, a water inlet pipe and a water return main pipe are arranged in the unloading platform of the garbage bin, the water inlet pipe is communicated with the water inlet pipe, and several sub-pipes are arranged on the water inlet pipe at intervals, and the water return main pipe is arranged. A plurality of sub-pipes two are arranged on the water return main pipe, which are communicated with the water outlet pipe and are respectively connected with the medium inlet and the medium outlet of the corresponding heater. Install the water inlet pipe and the return water main pipe in the unloading platform of the garbage bin, preferably in the same direction, which is convenient for layout. The sub-pipe 1 and sub-pipe 2 on the water inlet main pipe and the return water main pipe are respectively connected with several heaters, which is convenient for installation. and docking.

Further, the outlet of the water outlet pipe is connected to the outside world, and the water outlet pipe is communicated with the water inlet pipe through a communication pipe, and a valve is arranged on the communication pipe. Adding a connecting pipe makes the inlet and outlet pipes form a circulating water path, which is convenient for reusing the high-temperature water flow in the outlet pipe. In addition, it is also convenient for other heat sources to replace the primary air condensed water for heating in the later stage.

Further, a hydrophobic expansion vessel 1 is arranged outside the air preheater, the inlet of the hydrophobic expansion vessel 1 is communicated with the low pressure steam outlet of the air preheater, and the liquid outlet of the hydrophobic expansion vessel 1 is connected with the low pressure of the deaerator in the air preheater. The condensed water inlet is communicated with the outside world, and the gas outlet of the hydrophobic expansion vessel is communicated with the second connecting pipeline between the steam turbine and the air preheater. The hydrophobic expansion vessel is used as a buffer to prevent water at a higher temperature from entering the deaerator, thereby reducing the effect of the deaerator. In addition, the incoming steam is also partially converted into condensed water and deoxygenated.

Further, a second hydrophobic expansion vessel is arranged outside the air preheater, the inlet of the second hydrophobic empty vessel is communicated with the high pressure steam outlet of the air preheater, and the liquid outlet of the second hydrophobic expansion vessel is connected to the high pressure of the deaerator in the air preheater. The condensed water inlet is communicated with the outside world, and the gas outlet of the second hydrophobic expansion vessel is communicated with the connecting pipe between the steam drum and the air preheater.

Compared with the prior art, the beneficial effects of the present utility model:

1. The utility model redesigns the heating system of the unloading platform of the garbage bin, and uses the primary air condensed water of the air preheater as the heat source to supply heat to the heater in the platform, which is reasonably planned and utilized, and has high economic benefits.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the schematic diagram of the heating system of the waste bin discharge platform in Example 1;

Among them, the reference numerals are:

1. Discharge platform of garbage bin; 2. Air preheater; 3. Heater; 4. Water inlet pipe; 5. Water outlet pipe; 6. Connecting pipe; 7. Water inlet pipe; 8. Return water pipe; 9. Transport Pipeline one; 10. Conveying pipeline two; 11. Drain expansion container one; 12. Drain expansion container two; 13. Connecting pipeline two; 14. Connecting pipeline one; 15. Gas outlet; 16. Liquid outlet; ; 18, sub-pipe two;

a, boiler extraction steam inlet; b, primary extraction steam inlet; c, low pressure condensate water outlet; e, low pressure condensate water inlet; f, high pressure condensate water inlet; g, low pressure steam outlet; h, high pressure steam outlet.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Example 1

As shown in Figure 1, the heating system for the unloading platform of the garbage bin includes an air preheater 2, a steam drum (not shown in the figure), and a steam turbine (not shown in the figure). A conveying pipe 9 is installed between the air preheater 2 and the steam drum. The air inlet of the conveying pipe 9 is connected to the steam drum and the air outlet is connected to the boiler extraction steam inlet a of the air preheater 2 . A conveying pipe 2 10 is installed between the air preheater 2 and the steam turbine. The air inlet of the conveying pipe 2 10 is connected to the steam turbine and the air outlet is connected to the primary extraction steam inlet b of the air preheater 2 . A plurality of heaters 3, a water inlet pipe 7 and a water return main pipe 8 are installed in the waste bin discharge platform 1, wherein the water inlet pipe 7 and the water outlet pipe 8 are installed in the same direction. For example, in this example, the water inlet pipe 7 A plurality of sub-pipes 17 are installed at intervals on the upper part, and a plurality of sub-pipes 2 18 are installed at intervals on the return water main pipe 8 .

In this example, the low-pressure condensate water outlet c of the air preheater 2 is communicated with the inlet of the water inlet pipe 4, so as to supply hot water to the medium inlet of the heater 3, and the primary air condensate water is used as the heat source to enter the heater. The heater 3 adopts the hot water type, and a coil is installed on the wall of the air outlet channel of the shell. The hot water enters the coil to heat the passing airflow, and the airflow is transported to the platform to increase the temperature. The heat-exchanged water source passes through the medium outlet, namely The coil outlet flows to the water outlet pipe 5.

In this example, the outlet of the water outlet pipe 5 is connected to the external reservoir, etc., a check valve is installed at the outlet of the water outlet pipe 5, and the pipe near the outlet is connected with the water inlet pipe 4 through the communication pipe 6. The communication pipe A valve is installed on the 6, and the water inlet pipe 4 is also installed with a valve on the pipe behind the connection of the connecting pipe 6 to facilitate control. Connecting pipes, inlet and outlet pipes, etc. form a circulating water path, which can be used for secondary use of high-temperature water flow in the outlet pipe or other heat sources to replace primary air condensed water for heat supply in the later stage.

In this example, the first hydrophobic expansion container 11 and the second hydrophobic expansion container 12 are installed outside the air preheater 2 . The inlet at the lower part of the hydrophobic expansion vessel 11 is connected with the low pressure steam outlet g of the air preheater 2 through a pipeline, and the liquid outlet 16 at the bottom of the hydrophobic expansion vessel 11 is connected with the low pressure condensate water inlet e of the deaerator in the air preheater 2 through a pipeline. The gas outlet 15 at the upper part of the first hydrophobic expansion vessel 11 is communicated with the second conveying pipeline 10 between the steam turbine and the air preheater through the second connecting pipeline 13 . The inlet at the lower part of the second drain container 12 is connected with the high pressure steam outlet h of the air preheater 2 through a pipeline, and the liquid outlet 16 at the bottom of the second drain expansion container 12 is connected with the high pressure condensate water inlet f of the deaerator in the air preheater 2. The gas outlet 15 on the upper part of the second hydrophobic expansion vessel 12 is communicated with the conveying pipeline 1 9 between the steam drum and the air preheater through the connecting pipeline 1 14 . It is buffered with a hydrophobic expansion vessel to prevent water at a higher temperature from entering the deaerator, and can convert part of the steam into condensed water.

In this example, you can choose to install valves on each pipeline, such as connecting pipe 1, connecting pipe 2, sub-pipe 1, sub-pipe 2, conveying pipe 1, conveying pipe 2, connecting pipe, water inlet pipe, water outlet pipe, inlet pipe Install valves on jellyfish pipes, jellyfish pipes and other pipelines, such as installing a single valve or installing multiple valves in series, and adopting a parallel double-pipe structure at some pipelines and installing valves on each parallel pipeline, such as shut-off valves, Solenoid valve, etc., to facilitate control.

The waste bin discharge platform uses the primary air low-pressure drainage of the air preheater as the heat source, and the platform is heated by the heat exchange of the heater, the temperature in the platform is increased, the fermentation effect of the waste is good, and the combustion effect in the incinerator is improved. After testing, initially, the hydrophobic temperature in the water inlet pipe was 130 °C, the discharge platform was about minus 5 °C, and the pressure was 1.8MPa and the flow rate was 2.4t/h. 53 ℃, the temperature in the unloading platform is raised to 25 ℃, and the effect is obvious.

The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (5)

1. The heating system for the unloading platform of the garbage bin includes an air preheater, a steam drum and a steam turbine, and the air preheater is connected with the steam drum and the steam turbine. The low-pressure condensate water outlet of the air preheater is connected to the medium inlet of the heater through the water inlet pipe, and the primary air condensate water is used as a heat source to enter the heater, and the medium outlet of the heater is connected to the water outlet pipe. 2 . The heating system for the unloading platform of a garbage bin according to claim 1 , wherein a water inlet pipe and a water return mother pipe are arranged in the garbage bin discharge platform, and the water inlet pipe is communicated with the water inlet pipe. 3 . And a number of sub-pipes are arranged on the water inlet main pipe at intervals, the return water main pipe is communicated with the water outlet pipe, and a plurality of sub-pipes are arranged on the water-return main pipe, and the sub-pipe 1 and the sub-pipe The medium inlet and medium outlet of the heater are connected. 3. The waste bin discharge platform heating system according to claim 2, wherein the outlet of the water outlet pipe is connected to the outside world and the water outlet pipe is communicated with the water inlet pipe through a communication pipe, and a valve is arranged on the communication pipe . 4. The waste bin discharge platform heating system according to claim 1, wherein a hydrophobic expansion vessel 1 is arranged outside the air preheater, and the inlet of the hydrophobic expansion vessel 1 is communicated with the low pressure steam outlet of the air preheater, The liquid outlet of the hydrophobic expansion vessel 1 is communicated with the low pressure condensed water inlet of the deaerator in the air preheater and the outside, and the gas outlet of the hydrophobic expansion vessel is communicated with the connecting pipeline 2 between the steam turbine and the air preheater. 5. The waste bin discharge platform heating system according to claim 1, wherein a second hydrophobic expansion vessel is arranged outside the air preheater, and the inlet of the second hydrophobic expansion vessel is communicated with the high pressure steam outlet of the air preheater, The liquid outlet of the second hydrophobic expansion vessel is communicated with the high pressure condensed water inlet of the deaerator in the air preheater and the outside, and the gas outlet of the second hydrophobic expansion vessel is communicated with the connecting pipe between the steam drum and the air preheater.

Images