Fluidized air system

Abstract

The utility model discloses a fluidization air system, which comprises a fluidization bin, a fluidized bed and a fluidized bed, the fluidization fan is connected with the fluidization bin through a pipeline and is used for conveying fluidization air into the fluidization bin; the fluidization air temperature regulator is arranged on a pipeline between the fluidization fan and the fluidization bin and is used for introducing a cooling or heating medium to cool or heat the fluidization air flowing through the fluidization air temperature regulator; the first temperature transmitter is arranged on the fluidization bin and is used for detecting the temperature of the ash body in the fluidization bin; the second temperature transmitter is arranged on a pipeline between the fluidization bin and the fluidization air thermolator and is used for detecting the temperature of the cooled or heated fluidization air; and the controller is electrically connected with the first temperature transmitter and the second temperature transmitter and is used for controlling the introduction of the cooling or heating medium in the fluidized air thermolator according to the temperatures detected by the first temperature transmitter and the second temperature transmitter. According to the fluidization air system, the temperature of the fed fluidization air can be adjusted according to the temperature in the fluidization bin, and the caking phenomenon caused by alternate cooling and heating between the fluidization air and the ash body is effectively reduced or avoided.

Description

Technical Field

[0001] The utility model relates to a fluidized air system, belonging to the technical field of ash conveying. Background Art

[0002] The fluidized air system used in the existing ash conveying system is generally too simple and cannot match the temperature of the conveying medium. Due to the temperature difference, the alternation of hot and cold between the fluidized air and the high-temperature conveying medium will cause agglomeration. Utility Model Content

[0003] The purpose of the utility model is to provide a fluidizing air system, which can adjust the fluidizing air temperature according to the temperature of the conveying medium, thereby reducing or avoiding the occurrence of agglomeration.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0005] A fluidizing air system, comprising:

[0006] Fluidized bin, used to receive desulfurization ash;

[0007] The fluidizing fan is connected to the fluidizing bin through a pipeline and is used to deliver fluidizing air into the fluidizing bin;

[0008] The fluidizing air thermostat is installed on the pipeline between the fluidizing fan and the fluidizing bin, and is used to pass cooling or heating medium to cool or heat the fluidizing air flowing through it;

[0009] The first temperature transmitter is installed on the fluidizing bin and is used to detect the temperature of the ash body in the fluidizing bin;

[0010] The second temperature transmitter is installed on the pipeline between the fluidizing bin and the fluidizing air temperature regulator to detect the temperature of the fluidizing air after cooling or heating;

[0011] The controller is electrically connected to the first temperature transmitter and the second temperature transmitter, and is used to control the flow of cooling or heating medium into the fluidizing air thermostat according to the temperatures detected by the first temperature transmitter and the second temperature transmitter.

[0012] Preferably, a medium pipe is provided through the fluidized air temperature regulator, and the feed end of the medium pipe is connected to the cooling system and the heating system.

[0013] Preferably, the cooling system is used to introduce cooling water into the medium pipe, comprising:

[0014] A water inlet pipe connected to the medium pipe;

[0015] A water inlet flow regulating valve installed on the water inlet pipe and electrically connected to the controller for controlling the water inlet flow; and

[0016] The first temperature detector is installed on the water inlet pipe and is used to detect the inlet water temperature.

[0017] Preferably, the heating system is used to introduce steam into the medium pipe, comprising:

[0018] Steam pipe connected to the medium pipe;

[0019] a steam flow regulating valve installed on the steam pipe and electrically connected to the controller for controlling the steam flow; and

[0020] A second temperature detector is installed on the steam pipe to detect the steam temperature.

[0021] Preferably, the discharge end of the medium pipe is connected to the water return pipe and the steam return pipe respectively, and a control valve electrically connected to the controller is installed on the water return pipe and the steam return pipe respectively.

[0022] Preferably, the medium pipe is a U-shaped disc or spiral structure

[0023] The beneficial effects of the present invention are:

[0024] The fluidizing air system can adjust the temperature of the fluidizing air introduced according to the temperature in the fluidizing bin to reduce or avoid the agglomeration phenomenon caused by the alternation of hot and cold between the fluidizing air and the ash body, thereby realizing the effective transportation of desulfurization ash in the fluidizing bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the connection relationship of the fluidizing air system.

[0026] The main reference numerals in the figures have the following meanings:

[0027] 1. Fluidizing bin, 2. Fluidizing fan, 3. Fluidizing air thermostat, 4. Medium pipe, 5. First temperature transmitter, 6. Second temperature transmitter, 7. Controller, 8. Water inlet pipe, 9. Water inlet flow regulating valve, 10. First temperature detector, 11. Steam pipe, 12. Steam flow regulating valve, 13. Second temperature detector, 14. One-way valve. DETAILED DESCRIPTION

[0028] This embodiment provides a fluidizing air system, such as Figure 1 As shown, it includes a fluidized bin 1 for receiving desulfurized ash and a fluidized fan 2 connected to the fluidized bin 1 via a pipeline for conveying fluidizing air into the fluidized bin 1. A fluidized air thermostat 3 is installed on the pipeline between the fluidized fan 2 and the fluidized bin 1. A U-shaped disc-shaped medium pipe 4 is provided through the fluidized air thermostat 3. The feed end of the medium pipe 4 is connected to a cooling system and a heating system. The cooling system and the heating system are used to pass cooling or heating medium to cool or heat the fluidized air flowing through.

[0029] A first temperature transmitter 5 is installed on the fluidizing bin 1 to detect the temperature of the ash body within the bin. A second temperature transmitter 6 is installed on the pipeline between the fluidizing bin 1 and the fluidizing air temperature regulator 3 to detect the temperature of the fluidizing air after cooling or heating. Both the first and second temperature transmitters 5 and 6 are electrically connected to a controller 7 (PLC) to transmit the detected temperature data to the controller 7.

[0030] The cooling system is used to introduce cooling water into the medium pipe 4, and includes a water inlet pipe 8 connected to the medium pipe 4; a water inlet flow regulating valve 9 installed on the water inlet pipe 8 and electrically connected to the controller 7 for controlling the water inlet flow; and a first temperature detector 10 installed on the water inlet pipe 8 for detecting the water inlet temperature.

[0031] The heating system is used to introduce steam into the medium pipe 4, and includes a steam pipe 11 connected to the medium pipe 4; a steam flow regulating valve 12 installed on the steam pipe 11 and electrically connected to the controller 7 for controlling the steam flow; and a second temperature detector 13 installed on the steam pipe 11 for detecting the steam temperature.

[0032] At the same time, a one-way valve 14 is installed on the water inlet pipe 8 and the steam pipe 9. The one-way valve 14 can ensure that the cooling or heating medium enters the medium pipe 4, and can also prevent the cooling or heating medium from entering different pipes. The discharge end of the medium pipe 4 is connected to the return water pipe and the return steam pipe, respectively. Each of these pipes is equipped with a control valve (not shown) electrically connected to the controller 7. When cooling water is flowing into the medium pipe 4, the control valve on the return water pipe opens, and the control valve on the return steam pipe closes. When steam is flowing into the medium pipe 4, the control valve on the return steam pipe opens, and the control valve on the return water pipe closes.

[0033] If the temperature of the ash body in the fluidizing bin 1 is lower than the temperature of the fluidizing air discharged through the fluidizing air thermostat 3, that is, the temperature value detected by the first temperature transmitter 5 is lower than the temperature value detected by the second temperature transmitter 6, the controller 7 controls the water inlet flow regulating valve 9 on the water inlet pipe 8 of the cooling system to open and set a certain water inlet flow rate (which can be adjusted according to the temperature value detected by the second temperature transmitter 6) to allow cooling water to enter the medium pipe 4 and cool the fluidizing air flowing through the fluidizing air thermostat 3 until the difference between the temperature value detected by the second temperature transmitter 6 and the temperature value detected by the first temperature transmitter 5 is maintained within a small range; at the same time, the control valve on the return water pipe is opened and the control valve on the return steam pipe is closed to recycle the cooling water.

[0034] If the temperature of the ash body in the fluidizing bin 1 is higher than the temperature of the fluidizing air discharged through the fluidizing air thermostat 3, that is, the temperature value detected by the first temperature transmitter 5 is higher than the temperature value detected by the second temperature transmitter 6, the controller 7 controls the steam flow regulating valve 12 on the steam pipe 11 of the heating system to open and set a certain steam inlet flow rate (which can be adjusted according to the temperature value detected by the second temperature transmitter 6), so that steam can enter the medium pipe 4 and heat the fluidizing air flowing through the fluidizing air thermostat 3 until the difference between the temperature value detected by the second temperature transmitter 6 and the temperature value detected by the first temperature transmitter 5 remains within a small range; at the same time, the control valve on the return steam pipe is opened and the control valve on the return water pipe is closed to allow the steam to be recycled.

[0035] The above is only a preferred embodiment of the present utility model patent. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present utility model patent. These improvements and modifications should also be regarded as the scope of protection of the present utility model patent.

Claims

1. A fluidizing air system, characterized in that: include: Fluidized bin, used to receive desulfurization ash; The fluidizing fan is connected to the fluidizing bin through a pipeline and is used to deliver fluidizing air into the fluidizing bin; The fluidizing air thermostat is installed on the pipeline between the fluidizing fan and the fluidizing bin, and is used to pass cooling or heating medium to cool or heat the fluidizing air flowing through it; The first temperature transmitter is installed on the fluidizing bin and is used to detect the temperature of the ash body in the fluidizing bin; The second temperature transmitter is installed on the pipeline between the fluidizing bin and the fluidizing air temperature regulator to detect the temperature of the fluidizing air after cooling or heating; The controller is electrically connected to the first temperature transmitter and the second temperature transmitter, and is used to control the flow of cooling or heating medium into the fluidizing air thermostat according to the temperatures detected by the first temperature transmitter and the second temperature transmitter.

2. A fluidizing air system according to claim 1, characterized in that: A medium pipe is provided through the fluidized air temperature regulator, and a feed end of the medium pipe is connected to a cooling system and a heating system.

3. A fluidizing air system according to claim 2, characterized in that: The cooling system is used to introduce cooling water into the medium pipe, and includes: a water inlet pipe connected to the medium pipe; and, A water flow regulating valve installed on the water inlet pipe and electrically connected to the controller to control the water flow.

4. A fluidizing air system according to claim 2, characterized in that: The heating system is used to introduce steam into the medium pipe, and includes: Steam pipes connected to the medium pipes; and, A steam flow regulating valve installed on a steam pipe and electrically connected to a controller to control the steam flow.

5. A fluidizing air system according to claim 2, characterized in that: The discharge end of the medium pipe is connected to the return water pipe and the return steam pipe respectively, and control valves electrically connected to the controller are installed on the return water pipe and the return steam pipe respectively.

6. A fluidizing air system according to claim 2, characterized in that: The medium pipe is a U-shaped disc or spiral structure.

7. The fluidizing air system according to claim 3, characterized in that: A first temperature detector for detecting the inlet water temperature is also installed on the water inlet pipe.

8. The fluidizing air system according to claim 4, characterized in that: A second temperature detector for detecting the steam temperature is also installed on the steam pipe.

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