Hot air output system based on bypass air mixing and output control method thereof

Abstract

The invention discloses a hot air output system based on bypass air mixing and an output control method thereof, relates to a hot air output system and a hot air output control method, and aims to solve the problem that the temperature of hot air output by an existing ultrahigh-temperature solid heat storage device cannot be accurately controlled. A main fan is communicated with an ultrahigh-temperature solid heat storage device; the ultra-high-temperature solid heat storage device is used for heating cold air, and an air outlet of the ultra-high-temperature solid heat storage device outputs hot air through an air outlet pipeline; an air inlet of the air mixer is used for inputting cold air; air outlet pipelines of the air mixing fans converge to an air outlet pipeline of the ultrahigh-temperature solid heat storage device; the temperature sensor is arranged on the converged air outlet pipeline; the temperature sensor is connected with the controller; the controller generates a first frequency control signal and a second frequency control signal according to the temperature sensing signal; and the controller is connected with the main fan and the mixed fan. The device has the beneficial effect that the temperature of hot air output by the ultrahigh-temperature solid-state heat storage device is accurately controlled.

Description

Technical Field

[0001] The invention relates to a hot air output system and a hot air output control method. Background Art

[0002] In ultra-high temperature solid-state heat storage devices, the temperature variation range of the output hot air is large, the highest hot air temperature reaches above 750°C, and the air volume changes with the temperature; in practice, the required hot air temperature under most working conditions is within 300°C, and the air volume is relatively constant. Therefore, the hot air directly output by the ultra-high temperature solid-state heat storage device cannot directly meet the use requirements. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the temperature of hot air output by the existing ultra-high temperature solid-state heat storage device cannot be accurately controlled, and proposes a hot air output system based on bypass mixed air and an output control method thereof.

[0004] A hot air output system based on bypass mixed air described in the present invention comprises an ultra-high temperature solid-state heat storage device and a main fan;

[0005] The air inlet of the main fan is a cold air inlet, and the air outlet of the main fan is connected to the air inlet of the ultra-high temperature solid-state heat storage device;

[0006] The ultra-high temperature solid-state heat storage device is used to heat cold air, and the air outlet of the ultra-high temperature solid-state heat storage device outputs hot air through an air outlet pipeline;

[0007] It also includes a fan mixer, a temperature sensor and a controller;

[0008] The air inlet of the air mixer is used to input cold air; the air outlet pipeline of the air mixer converges to the air outlet pipeline of the ultra-high temperature solid-state heat storage device;

[0009] The temperature sensor is used to collect the temperature signal of the air outlet pipeline after the air outlet pipeline of the air mixer and the air outlet pipeline of the ultra-high temperature solid-state heat storage device converge; and the temperature sensor signal output end of the temperature sensor is connected to the temperature sensor signal input end of the controller;

[0010] The controller is used to compare the temperature sensor signal with a preset temperature threshold. When the temperature sensor signal is greater than the preset temperature threshold, the controller generates a decrease signal, and the controller controls the main fan to reduce the frequency and controls the mixing fan to increase the frequency; when the temperature sensor signal is less than the preset temperature threshold, the controller generates an increase signal, and the controller controls the main fan to increase the frequency and controls the mixing fan to reduce the frequency; when the temperature sensor signal is equal to the preset temperature threshold, the controller does not take any action.

[0011] Furthermore, it also includes a first pressure sensor and a main air valve;

[0012] The main air valve is arranged on the pipeline between the air outlet of the main air fan and the air inlet of the ultra-high temperature solid-state heat storage device;

[0013] The first pressure sensor is arranged on the air outlet pipe of the ultra-high temperature solid-state heat storage device that is not converging; and the first pressure signal output end of the first pressure sensor is connected to the first pressure signal input end of the controller;

[0014] The controller generates a main path opening signal according to the first pressure signal, and a main path opening signal output terminal of the controller is connected to a main path opening signal input terminal of the main air valve.

[0015] Furthermore, it also includes a second pressure sensor and an air mixing valve;

[0016] The air mixing valve is arranged on the air outlet duct of the air mixing fan which is not converging;

[0017] The second pressure sensor is arranged on the air outlet duct of the air mixer between the air mixing valve and the confluence point; and the second pressure signal output end of the second pressure sensor is connected to the second pressure signal input end of the controller;

[0018] The controller generates a bypass opening signal according to the second pressure signal, and the bypass opening signal output terminal of the controller is connected to the bypass opening signal input terminal of the main air valve.

[0019] Further, it also includes a flow sensor;

[0020] The flow sensor is used to collect the flow signal of the air outlet pipeline after the air outlet pipeline of the air mixer and the air outlet pipeline of the ultra-high temperature solid-state heat storage device converge; and the flow signal output end of the flow sensor is connected to the flow signal input end of the controller;

[0021] The controller generates an air volume ratio signal according to the flow signal; and the air volume ratio signal output end of the controller is simultaneously connected to the air volume ratio signal input end of the main fan and the air volume ratio signal input end of the mixer.

[0022] An output control method of a hot air output system based on bypass mixed air comprises the following steps:

[0023] Step 1: Obtain the actual temperature T1 of the hot air outlet of the air outlet pipeline of the ultra-high temperature solid-state heat storage device after confluence;

[0024] Step 2: Compare the actual temperature T1 obtained in step 1 with the pre-reached temperature threshold T2 to obtain a temperature comparison value T3;

[0025] Step 3: Determine whether the temperature comparison value T3 obtained in step 2 is greater than the temperature error value ΔT; if yes, execute step 4; otherwise, execute step 7;

[0026] Step 4: Determine whether the actual temperature T1 obtained in step 1 is greater than the pre-reached temperature threshold T2; if yes, execute step 5; otherwise, execute step 6;

[0027] Step 5: Increase the frequency of the mixing fan and reduce the frequency of the main fan, and return to step 1;

[0028] Step 6: Reduce the frequency of the mixing fan and increase the frequency of the main fan, and return to step 1;

[0029] Step 7: Maintain the frequency of the main fan and the frequency of the mixing fan to complete the output control of the output system.

[0030] Furthermore, after increasing the frequency of the air mixer in step five, the opening of the air mixer valve needs to be adjusted;

[0031] The specific method for adjusting the opening of the air mixing valve 7 is:

[0032] Step 51: Obtain the second actual pressure P21 of the air outlet pipeline of the air mixer without confluence;

[0033] Step 52: Compare the second actual pressure P21 with the second pressure threshold value P22 to obtain a second pressure comparison value P23;

[0034] Step 53: Determine whether the second pressure comparison value P23 is greater than the second pressure allowable value ΔP2; if yes, execute step 54; otherwise, execute step 57;

[0035] Step 54: determine whether the second actual pressure P21 is greater than the second pressure threshold P22; if yes, execute step 55; otherwise, execute step 56;

[0036] Step 55: reduce the opening of the air mixing valve and return to step 51;

[0037] Step 56: Increase the opening of the air mixing valve and return to step 51;

[0038] Step 57: The opening of the air mixing valve remains unchanged.

[0039] Furthermore, after increasing the frequency of the main fan in step 6, the opening of the main air valve 4 needs to be adjusted;

[0040] The specific method to adjust the main air valve opening is:

[0041] Step 61: Obtain the first actual pressure P11 of the air outlet pipeline of the unconfluent ultra-high temperature solid-state heat storage device;

[0042] Step 62: Compare the first actual pressure P11 with the first pressure threshold value P12 to obtain a first pressure comparison value P13;

[0043] Step 63: Determine whether the first pressure comparison value P13 is greater than the first pressure allowable value ΔP1; if yes, execute step 64; otherwise, execute step 67;

[0044] Step 64: determine whether the first actual pressure P11 is greater than the second pressure threshold P12; if yes, execute step 65; otherwise, execute step 66;

[0045] Step 65: Reduce the opening of the main air valve and return to step 61;

[0046] Step 66: Increase the opening of the main air valve and return to step 61;

[0047] Step 67: The opening of the main air valve remains unchanged.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] The present invention utilizes a bypass air mixing structure, a main air duct, and an air valve and a pressure sensor on the air mixing duct to ensure stable operation of the system under the air mixing structure, converts the ultra-high temperature variable hot air output by the solid-state heat storage device into low-temperature stable hot air, ensures the low-temperature hot air demand of actual working conditions, and realizes precise control of the hot air temperature output by the ultra-high temperature solid-state heat storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a schematic diagram of the overall structure of a hot air output system based on bypass mixed air as described in the first specific implementation mode;

[0051] Figure 2 This is a schematic diagram of a circuit control principle of a hot air output system based on bypass mixed air in a specific implementation mode 1;

[0052] Figure 3 This is a flow chart of a method for controlling the output of a hot air output system based on bypass mixed air as described in the fifth specific implementation mode;

[0053] Figure 4 It is a flow chart of a specific method for adjusting the opening of the air mixing valve in the sixth specific implementation mode;

[0054] Figure 5 This is a flow chart of a specific method for adjusting the opening of the main air valve in specific implementation mode seven. DETAILED DESCRIPTION

[0055] Specific implementation method 1. Combination Figure 1 to Figure 2 To explain this embodiment, a hot air output system based on bypass mixed air described in this embodiment includes an ultra-high temperature solid-state heat storage device 3 and a main fan 5;

[0056] The air inlet of the main fan 5 is a cold air inlet, and the air outlet of the main fan 5 is connected to the air inlet of the ultra-high temperature solid-state heat storage device 3;

[0057] The ultra-high temperature solid-state heat storage device 3 is used to heat the cold air, and the air outlet of the ultra-high temperature solid-state heat storage device 3 outputs hot air through the air outlet pipeline;

[0058] It is characterized in that it also includes a fan mixer 6, a temperature sensor 8 and a controller 10;

[0059] The air inlet of the air mixer 6 is used to input cold air; the air outlet pipeline of the air mixer 6 converges to the air outlet pipeline of the ultra-high temperature solid-state heat storage device 3;

[0060] The temperature sensor 8 is used to collect the temperature signal of the air outlet pipeline after the air outlet pipeline of the air mixer 6 and the air outlet pipeline of the ultra-high temperature solid-state heat storage device 3 converge; and the temperature sensor signal output end of the temperature sensor 8 is connected to the temperature sensor signal input end of the controller 10;

[0061] The controller 10 is used to compare the temperature sensor signal with a preset temperature threshold. When the temperature sensor signal is greater than the preset temperature threshold, the controller 10 generates a decrease signal, and the controller 10 controls the main fan 5 to reduce the frequency and controls the mixing fan 6 to increase the frequency; when the temperature sensor signal is less than the preset temperature threshold, the controller 10 generates an increase signal, and the controller 10 controls the main fan 5 to increase the frequency and controls the mixing fan 6 to reduce the frequency; when the temperature sensor signal is equal to the preset temperature threshold, the controller 10 does not take any action.

[0062] In this embodiment, a bypass air mixing design is used to reduce the temperature of the hot air output by the ultra-high temperature solid-state heat storage device 3, and as the temperature of the heat storage body of the ultra-high temperature solid-state heat storage device 3 decreases, the air volume of the air mixer 6 and the main fan 5 is adjusted at the same time to ensure the normal and stable operation of the system. At the same time, the air volume needs to be adjusted according to the operating conditions to achieve precise control of the hot air outlet temperature. Figure 1 The low-temperature air input by the system enters from the cold air inlet and is divided into two paths. The first path passes through the main fan 5 and the main air valve 4 and enters the ultra-high temperature solid-state heat storage device 3 to be heated into high-temperature air. The second path passes through the mixing fan 6 and the mixing valve 7 and merges with the first path to form stable low-temperature air.

[0063] Specific implementation method 2: This implementation method further limits the hot air output system based on bypass mixed air described in specific implementation method 1. In this implementation method, it also includes a first pressure sensor 1 and a main air valve 4;

[0064] The main air valve 4 is arranged on the pipeline between the air outlet of the main air fan 5 and the air inlet of the ultra-high temperature solid-state heat storage device 3;

[0065] The first pressure sensor 1 is arranged on the air outlet duct of the ultra-high temperature solid-state heat storage device 3 which is not converging; and the first pressure signal output end of the first pressure sensor 1 is connected to the first pressure signal input end of the controller 10;

[0066] The controller 10 generates a main opening signal according to the first pressure signal, and a main opening signal output terminal of the controller 10 is connected to a main opening signal input terminal of the main air valve 4 .

[0067] In this embodiment, when the first pressure sensor 1 detects that the pressure of the air outlet pipeline of the unconverged ultra-high temperature solid-state heat storage device 3 is too large, the opening of the main air valve 4 is reduced through the controller 10, so as to achieve the purpose of reducing the pressure of the air outlet pipeline of the unconverged ultra-high temperature solid-state heat storage device 3; conversely, when the first pressure sensor 1 detects that the pressure of the air outlet pipeline of the unconverged ultra-high temperature solid-state heat storage device 3 is too small, the opening of the main air valve 4 is increased through the controller 10, so as to achieve the purpose of increasing the pressure of the air outlet pipeline of the unconverged ultra-high temperature solid-state heat storage device 3, thereby ensuring the normal and stable operation of the system.

[0068] Specific implementation method 3: This implementation method further limits the hot air output system based on bypass air mixing described in specific implementation method 1. In this implementation method, it also includes a second pressure sensor 2 and an air mixing valve 7;

[0069] The air mixing valve 7 is arranged on the air outlet duct of the air mixing fan 6 which is not converging;

[0070] The second pressure sensor 2 is arranged on the air outlet duct of the air mixer 6 between the air mixing valve 7 and the confluence point; and the second pressure signal output end of the second pressure sensor 2 is connected to the second pressure signal input end of the controller 10;

[0071] The controller 10 generates a bypass opening signal according to the second pressure signal, and the bypass opening signal output terminal of the controller 10 is connected to the bypass opening signal input terminal of the main air valve 4 .

[0072] In this embodiment, when the second pressure sensor 2 detects that the pressure of the air outlet pipeline of the mixing fan 6 between the mixing valve 7 and the confluence point is too large, the opening of the mixing valve 7 is reduced through the controller 10, so as to achieve the purpose of reducing the pressure of the air outlet pipeline of the mixing fan 6 between the mixing valve 7 and the confluence point; conversely, when the second pressure sensor 2 detects that the pressure of the air outlet pipeline of the mixing fan 6 between the mixing valve 7 and the confluence point is too small, the opening of the mixing valve 7 is increased through the controller 10, so as to achieve the purpose of increasing the pressure of the air outlet pipeline of the mixing fan 6 between the mixing valve 7 and the confluence point, thereby ensuring the normal and stable operation of the system.

[0073] Specific implementation method 4: This implementation method further limits the hot air output system based on bypass mixed air described in specific implementation method 1. In this implementation method, it also includes a flow sensor 9;

[0074] The flow sensor 9 is arranged on the air outlet pipe of the ultra-high temperature solid-state heat storage device 3 after confluence; and the flow signal output end of the flow sensor 9 is connected to the flow signal input end of the controller 10;

[0075] The controller 10 generates an air volume ratio signal according to the flow signal; and the air volume ratio signal output end of the controller 10 is simultaneously connected to the air volume ratio signal input end of the main fan 5 and the air volume ratio signal input end of the mixer 6.

[0076] In this embodiment, when it is necessary to set the output flow rate Q2, the flow sensor 9 is used to obtain the actual flow rate Q1 of the hot air outlet; the actual flow rate Q1 is compared with the set output flow rate Q2 to obtain the flow comparison value Q3; it is determined whether the flow comparison value Q3 is greater than the set flow value deviation ΔQ; if so, the frequencies of the main fan 5 and the mixing fan 6 are adjusted proportionally at the same time according to the air volume ratio calculated based on the frequencies of the mixing fan 6 and the main fan 5; the heat output by the ultra-high temperature solid-state heat storage device 3 is changed; otherwise, the frequencies of the main fan 5 and the mixing fan 6 are kept unchanged.

[0077] Specific implementation method V. Combination Figure 3 This embodiment is described. This embodiment is based on the output control method of the hot air output system based on bypass mixed air described in the specific embodiment 1, and includes the following steps:

[0078] Step 1: obtaining the actual temperature T1 of the hot air outlet of the air outlet pipeline of the ultra-high temperature solid-state heat storage device 3 after confluence;

[0079] Step 2: Compare the actual temperature T1 obtained in step 1 with the pre-reached temperature threshold T2 to obtain a temperature comparison value T3;

[0080] Step 3: Determine whether the temperature comparison value T3 obtained in step 2 is greater than the temperature error value ΔT; if yes, execute step 4; otherwise, execute step 7;

[0081] Step 4: Determine whether the actual temperature T1 obtained in step 1 is greater than the pre-reached temperature threshold T2; if yes, execute step 5; otherwise, execute step 6;

[0082] Step 5: Increase the frequency of the mixing fan 6 and reduce the frequency of the main fan 5, and return to step 1;

[0083] Step 6: reduce the frequency of the mixing fan 6 and increase the frequency of the main fan 5, and return to step 1;

[0084] Step 7: Maintain the frequency of the main fan 5 and the frequency of the mixer fan 6 to complete the output control of the output system.

[0085] In this embodiment, when the actual temperature T1 is higher than the temperature threshold T2, the frequency of the air mixer 6 is increased, and the frequency of the main air fan 5 is reduced; when the actual temperature T1 is lower than the temperature threshold T2, the frequency of the air mixer 6 is reduced, and the frequency of the main air fan 5 is increased. Compared with the method of only adjusting the frequency of the air mixer 6, the adjustment method in this embodiment makes the stability of the entire system higher, and under the premise of a certain pre-reached temperature threshold T2, the adjustment speed of the adjustment method in this embodiment is faster.

[0086] Specific implementation method 6. Combination Figure 3 This embodiment is described. This embodiment further limits the output control method of the hot air output system based on bypass air mixing described in the specific embodiment 5. In this embodiment, after increasing the frequency of the air mixer 6 in step 5, the opening of the air mixing valve 7 needs to be adjusted;

[0087] The specific method for adjusting the opening of the air mixing valve 7 is:

[0088] Step 51: Obtain the second actual pressure P21 of the air outlet pipeline of the air mixer 6 that has not been merged;

[0089] Step 52: Compare the second actual pressure P21 with the second pressure threshold value P22 to obtain a second pressure comparison value P23;

[0090] Step 53: Determine whether the second pressure comparison value P23 is greater than the second pressure allowable value ΔP2; if yes, execute step 54; otherwise, execute step 57;

[0091] Step 54: determine whether the second actual pressure P21 is greater than the second pressure threshold P22; if yes, execute step 55; otherwise, execute step 56;

[0092] Step 55: reduce the opening of the air mixing valve 7, and return to step 51;

[0093] Step 56: Increase the opening of the air mixing valve 7, and return to step 51;

[0094] Step 57: The opening of the air mixing valve 7 remains unchanged.

[0095] In this embodiment, the second pressure sensor 2 is used to obtain the second actual pressure P21 of the unconverged air mixer 6 outlet duct; and, when the second actual pressure P21 is greater than the second pressure threshold value P22, the second pressure comparison value P23 is close to the second pressure allowable value ΔP2 by reducing the opening of the air mixing valve 7; conversely, when the second actual pressure P21 is less than the second pressure threshold value P22, the second pressure comparison value P23 is close to the second pressure allowable value ΔP2 by increasing the opening of the air mixing valve 7.

[0096] Specific implementation method VII. Combination Figure 3 This embodiment is described. This embodiment further limits the output control method of the hot air output system based on bypass mixed air described in the specific embodiment 6. In this embodiment, after increasing the frequency of the main fan 5 in step 6, the opening of the main air valve 4 needs to be adjusted;

[0097] The specific method for adjusting the opening of the main air valve 4 is:

[0098] Step 61: Obtain the first actual pressure P11 of the air outlet pipeline of the unconfluent ultra-high temperature solid-state heat storage device 3;

[0099] Step 62: Compare the first actual pressure P11 with the first pressure threshold value P12 to obtain a first pressure comparison value P13;

[0100] Step 63: Determine whether the first pressure comparison value P13 is greater than the first pressure allowable value ΔP1; if yes, execute step 64; otherwise, execute step 67;

[0101] Step 64: determine whether the first actual pressure P11 is greater than the second pressure threshold P12; if yes, execute step 65; otherwise, execute step 66;

[0102] Step 65: reduce the opening of the main air valve 4 and return to step 61;

[0103] Step 66: Increase the opening of the main air valve 4 and return to step 61;

[0104] Step 67: The opening of the main air valve 4 remains unchanged.

[0105] In this embodiment, the first pressure sensor 1 is used to obtain the first actual pressure P11 of the unconverged ultra-high temperature solid-state heat storage device 3 outlet air pipeline; and when the first actual pressure P11 is greater than the first pressure threshold value P12, the opening of the main air valve 4 is reduced to achieve a first pressure comparison value P13 close to the first pressure allowable value ΔP1; conversely, when the first actual pressure P11 is less than the first pressure threshold value P12, the opening of the main air valve 4 is increased to achieve a first pressure comparison value P13 close to the first pressure allowable value ΔP1.

[0106] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A hot air output system based on bypass mixed air, comprising an ultra-high temperature solid-state heat storage device (3) and a main fan (5); The air inlet of the main fan (5) is a cold air inlet, and the air outlet of the main fan (5) is connected to the air inlet of the ultra-high temperature solid-state heat storage device (3); The ultra-high temperature solid-state heat storage device (3) is used to heat cold air, and the air outlet of the ultra-high temperature solid-state heat storage device (3) outputs hot air through an air outlet pipeline; It is characterized in that It also includes a fan mixer (6), a temperature sensor (8) and a controller (10); The air inlet of the air mixer (6) is used to input cold air; the air outlet pipeline of the air mixer (6) converges to the air outlet pipeline of the ultra-high temperature solid-state heat storage device (3); The temperature sensor (8) is used to collect the temperature signal of the air outlet pipeline after the air outlet pipeline of the air mixer (6) and the air outlet pipeline of the ultra-high temperature solid-state heat storage device (3) merge; and the temperature sensing signal output end of the temperature sensor (8) is connected to the temperature sensing signal input end of the controller (10); The controller (10) is used to compare the temperature sensor signal with a preset temperature threshold value. When the temperature sensor signal is greater than the preset temperature threshold value, the controller (10) generates a turn-down signal, and the controller (10) controls the main fan (5) to reduce the frequency and controls the mixing fan (6) to increase the frequency; when the temperature sensor signal is less than the preset temperature threshold value, the controller (10) generates a turn-up signal, and the controller (10) controls the main fan (5) to increase the frequency and controls the mixing fan (6) to reduce the frequency; when the temperature sensor signal is equal to the preset temperature threshold value, the controller (10) does not take any action.

2. A hot air output system based on bypass mixed air according to claim 1, characterized in that: It also includes a first pressure sensor (1) and a main air valve (4); The main air valve (4) is arranged on the pipeline between the air outlet of the main air fan (5) and the air inlet of the ultra-high temperature solid-state heat storage device (3); The first pressure sensor (1) is arranged on the air outlet pipe of the unconfluent ultra-high temperature solid-state heat storage device (3); and the first pressure signal output end of the first pressure sensor (1) is connected to the first pressure signal input end of the controller (10); The controller (10) generates a main circuit opening signal according to the first pressure signal, and a main circuit opening signal output end of the controller (10) is connected to a main circuit opening signal input end of the main air valve (4).

3. A hot air output system based on bypass mixed air according to claim 2, characterized in that: It also includes a second pressure sensor (2) and an air mixing valve (7); The air mixing valve (7) is arranged on the air outlet duct of the air mixing fan (6) where no flow is merged; The second pressure sensor (2) is arranged on the air outlet duct of the air mixer (6) between the air mixing valve (7) and the confluence point; and the second pressure signal output end of the second pressure sensor (2) is connected to the second pressure signal input end of the controller (10); The controller (10) generates a bypass opening signal according to the second pressure signal, and the bypass opening signal output end of the controller (10) is connected to the bypass opening signal input end of the main air valve (4).

4. A hot air output system based on bypass mixed air according to claim 3, characterized in that: Also includes a flow sensor (9); The flow sensor (9) is used to collect the flow signal of the air outlet pipeline after the air outlet pipeline of the air mixer (6) and the air outlet pipeline of the ultra-high temperature solid-state heat storage device (3) converge; and the flow signal output end of the flow sensor (9) is connected to the flow signal input end of the controller (10); The controller (10) generates an air volume ratio signal according to the flow rate signal; and the air volume ratio signal output end of the controller (10) is simultaneously connected to the air volume ratio signal input end of the main fan (5) and the air volume ratio signal input end of the mixing fan (6).

5. The output control method of the hot air output system based on bypass mixed air according to claim 1, characterized in that: The following steps are involved: Step 1, obtaining the actual temperature T1 of the hot air outlet of the air outlet pipeline of the ultra-high temperature solid-state heat storage device (3) after confluence; Step 2: Compare the actual temperature T1 obtained in step 1 with the pre-reached temperature threshold T2 to obtain a temperature comparison value T3; Step 3: determine whether the temperature comparison value T3 obtained in step 2 is greater than the temperature error value ΔT; if yes, proceed to step 4; Otherwise, go to step 7; Step 4: determine whether the actual temperature T1 obtained in step 1 is greater than the pre-reached temperature threshold T2; if so, proceed to step 5; Otherwise, go to step 6; Step 5: Increase the frequency of the mixing fan (6) and reduce the frequency of the main fan (5), and return to step 1; Step 6: reduce the frequency of the mixing fan (6) and increase the frequency of the main fan (5), and return to step 1; Step 7: Maintain the frequency of the main fan (5) and the frequency of the mixing fan (6) to complete the output control of the output system.

6. A hot air output system output control method based on bypass mixed air according to claim 5, characterized in that: After increasing the frequency of the air mixer (6) in step 5, it is necessary to adjust the opening of the air mixing valve (7); The specific method for adjusting the opening of the air mixing valve (7) is as follows: Step 51: Obtain the second actual pressure P21 of the air outlet pipeline of the air mixer (6) without converging; Step 52: Compare the second actual pressure P21 with the second pressure threshold value P22 to obtain a second pressure comparison value P23; Step 53: determine whether the second pressure comparison value P23 is greater than the second pressure allowable value ΔP2; if yes, execute step 54; Otherwise, execute step 57; Step 54: determine whether the second actual pressure P21 is greater than the second pressure threshold P22; If yes, go to step 55; otherwise, go to step 56; Step 55: reduce the opening of the air mixing valve (7) and return to step 51; Step 56: Increase the opening of the air mixing valve (7), and return to step 51; Step 57: The opening of the air mixing valve (7) remains unchanged.

7. A hot air output system output control method based on bypass mixed air according to claim 6, characterized in that: After increasing the frequency of the main fan (5) in step 6, it is necessary to adjust the opening of the main air valve (4); The specific method for adjusting the opening of the main air valve (4) is as follows: Step 61: Obtain the first actual pressure P11 of the air outlet pipeline of the unconfluent ultra-high temperature solid-state heat storage device (3); Step 62: Compare the first actual pressure P11 with the first pressure threshold value P12 to obtain a first pressure comparison value P13; Step 63: Determine whether the first pressure comparison value P13 is greater than the first pressure allowable value ΔP1; if yes, execute step 64; otherwise, execute step 67; Step 64: determine whether the first actual pressure P11 is greater than the second pressure threshold P12; If yes, go to step 65; Otherwise, execute step six-six; Step 65: reduce the opening of the main air valve (4), and return to step 61; Step 66: Increase the opening of the main air valve (4), and return to step 61; Step 67: The opening of the main air valve (4) remains unchanged.

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