An ultra-high temperature solid heat storage device hot air output system

Abstract

The application discloses an ultra-high-temperature solid heat storage device hot air output system based on a double-air-valve air mixing structure design; a gas input device sends gas into a fan, and the fan sends the sent gas into an ultra-high-temperature solid heat storage device and an air mixing pipe through a main air valve and an air mixing valve respectively; the ultra-high-temperature solid heat storage device heats the sent gas, and sends the heated gas into the air mixing pipe; the air mixing pipe mixes the gases sent by the ultra-high-temperature solid heat storage device and the air mixing valve, and sends the mixed gas into a gas output device; the gas output device outputs the sent mixed gas; a host computer adjusts the opening degree of the air mixing valve or the main air valve according to the temperature of the mixed gas and the output flow of the mixed gas; the system can output suitable gas according to actual working conditions; the overall structure is simple, and the degree of automation is high.

Description

Technical Field

[0001] The present invention relates to the field of solid-state heat storage, and in particular to a hot air output system of an ultra-high temperature solid-state heat storage device. Background Art

[0002] In ultra-high-temperature solid-state heat storage devices, the output hot air temperature varies widely, reaching a maximum temperature of over 550°C, and the output air volume varies with the temperature. However, in actual applications, the required hot air temperature in most operating conditions is within 300°C, and the required air volume is relatively constant. Therefore, the hot air directly output by existing ultra-high-temperature solid-state heat storage devices cannot directly meet the application requirements and cannot achieve precise control of the output hot air temperature. Summary of the Invention

[0003] To address the existing problem that the hot air directly output by ultra-high temperature solid-state heat storage devices cannot directly meet the actual working conditions, a hot air output system for ultra-high temperature solid-state heat storage devices is proposed. This system adjusts the opening of two air valves to reduce the temperature of the hot air output by the solid-state heat storage device, ensuring stable operation of the system as required.

[0004] A hot air output system for an ultra-high temperature solid-state heat storage device, comprising: an ultra-high temperature solid-state heat storage device, an air mixing valve, a main air valve, a fan, an air mixing pipe, a gas input device, a gas output device, a flow sensor, a temperature sensor, and a host computer;

[0005] The gas input device sends the gas to the fan, and the fan sends the gas to the ultra-high temperature solid-state heat storage device through the main air valve. The fan also sends the gas to the mixed air pipe through the mixed air valve;

[0006] The ultra-high temperature solid-state heat storage device heats the gas fed in and feeds the heated gas into the air mixing duct; the air mixing duct mixes the gas fed in by the ultra-high temperature solid-state heat storage device and the air mixing valve, and feeds the mixed gas into the gas output device; the gas output device outputs the mixed gas fed in;

[0007] The main air valve is used to adjust the gas velocity sent by the fan to the ultra-high temperature heat storage device by changing the opening; the air mixing valve is used to adjust the gas velocity sent by the fan to the air mixing duct by changing the opening;

[0008] The air outlet of the mixing pipe is provided with a temperature sensor and a flow sensor; the host computer is used to control the temperature sensor to obtain the temperature of the mixed gas and send the temperature of the mixed gas to the host computer; the host computer controls the flow sensor to obtain the output flow of the mixed gas and send the output flow of the mixed gas to the host computer;

[0009] The host computer is further used to adjust the opening of the air mixing valve or the main air valve according to the temperature of the received mixed gas and the output flow rate of the mixed gas.

[0010] Beneficial effects

[0011] The hot air output system of an ultra-high temperature solid-state heat storage device of the present application is based on a double-valve air mixing structure design, and the opening of the two air valves is adjusted simultaneously to ensure that the system operates stably as required; the two air valves of the system respectively input gases of different temperatures into the air mixing duct, and the air mixing duct fully mixes the gases of different temperatures and outputs the mixed hot air; the upper computer controls the temperature sensor and the flow sensor to respectively obtain the temperature of the mixed gas and the output flow of the mixed gas, and adjusts the opening of the air mixing valve or the main air valve according to the temperature of the mixed gas and the output flow of the mixed gas; the system can output gas with appropriate temperature and flow according to actual working conditions, and realize precise control of the output hot air temperature; the overall structure is simple and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural block diagram of a hot air output system of an ultra-high temperature solid-state heat storage device according to a specific embodiment of the present application;

[0013] Figure 2 This is a flow chart of the upper computer adjusting the opening of the air mixing valve or the main air valve in a specific embodiment of this application;

[0014] Among them, 1 is an ultra-high temperature heat storage device, 2 is an air mixing valve, 3 is a main air valve, 4 is a fan, 5 is an air mixing pipe, 6 is a flow sensor, 7 is a temperature sensor, 8 is a gas output device, and 9 is a gas input device. DETAILED DESCRIPTION

[0015] The following will be combined Figures 1 to 2 , describing this embodiment; a hot air output system for an ultra-high temperature solid-state heat storage device, comprising: an ultra-high temperature solid-state heat storage device 1, an air mixing valve 2, a main air valve 3, a fan 4, an air mixing pipe 5, a gas input device 9, a gas output device 8, a flow sensor 6, a temperature sensor 7 and a host computer;

[0016] The gas input device 9 delivers the gas to the fan 4, and the fan 4 delivers the delivered gas to the ultra-high temperature solid-state heat storage device 1 through the main air valve 3. The fan 4 also delivers the delivered gas to the air mixing pipe 5 through the air mixing valve 2;

[0017] The ultra-high temperature solid-state heat storage device 1 heats the gas fed in and feeds the heated gas into the air mixing pipe 5; the air mixing pipe 5 mixes the gas fed in by the ultra-high temperature solid-state heat storage device 1 and the air mixing valve 2, and feeds the mixed gas into the gas output device 8; the gas output device 8 outputs the mixed gas fed in;

[0018] The main air valve 3 is used to adjust the gas velocity of the fan 4 sent to the ultra-high temperature heat storage device 1 by changing the opening; the air mixing valve 2 is used to adjust the gas velocity of the fan 4 sent to the air mixing pipe 5 by changing the opening;

[0019] The air outlet of the air mixing pipe 5 is provided with a temperature sensor 7 and a flow sensor 6; the host computer is used to control the temperature sensor 7 to obtain the temperature of the mixed gas and send the temperature of the mixed gas to the host computer; the host computer controls the flow sensor 6 to obtain the output flow of the mixed gas and send the output flow of the mixed gas to the host computer;

[0020] The host computer is further used to adjust the opening of the air mixing valve 2 or the main air valve 3 according to the temperature of the received mixed gas and the output flow rate of the mixed gas.

[0021] Specifically, the gas input device inputs gas into the fan 4, and the fan 4 sends the input gas to the ultra-high temperature solid-state heat storage device and the mixing air pipe 5 through the main air valve 3 and the mixing air valve 2 respectively. The ultra-high temperature solid-state heat storage device heats the input gas and sends it to the mixing air pipe 5. The mixing air pipe 5 fully mixes the two input gases with different temperatures and then outputs them through the gas output device; the upper computer finally adjusts the temperature and flow of the output gas of the gas output device 8 by controlling the opening of the main air valve 3 and the opening of the mixing air valve 2; the system can output gas that meets the requirements according to actual working conditions; and realize precise control of the output hot air temperature and flow.

[0022] Furthermore, the host computer adjusts the opening of the air mixing valve 2 or the main air valve 3 according to the temperature of the received mixed gas and the output flow rate of the mixed gas, including:

[0023] Step 1: Set the temperature threshold Ts, flow threshold Qs, temperature deviation threshold ΔT and flow deviation threshold ΔQ;

[0024] Step 2: The upper computer controls the temperature sensor 7 to obtain the temperature T of the mixed gas; determines whether the absolute value of the difference between the temperature threshold Ts and the received temperature T of the mixed gas is greater than the temperature deviation threshold ΔT, and if so, determines the magnitude relationship between the temperature threshold Ts and the temperature T of the mixed gas; if the temperature threshold Ts is greater than the temperature T of the mixed gas, increases the opening of the main air valve 3, and then proceeds to step 3 after increasing the opening of the main air valve 3; if the temperature threshold T is less than the temperature T1 of the mixed gas, reduces the opening of the main air valve 3, and then proceeds to step 3 after reducing the opening of the main air valve 3; if the absolute value of the difference between the temperature threshold Ts and the received temperature T of the mixed gas is less than the temperature deviation threshold ΔT, then proceeds to step 3;

[0025] Step 3: The upper computer controls the flow sensor 6 to obtain the output flow Q of the mixed gas; the upper computer determines whether the absolute value of the difference between the flow threshold Qs and the output flow Q of the received mixed gas is greater than the flow deviation threshold ΔQ, and if so, determines the relationship between the flow threshold Qs and the output flow Q of the mixed gas; if the flow threshold Qs is greater than the output flow Q of the mixed gas, the opening of the mixing valve 2 is increased, and after increasing the opening of the mixing valve 2, the process proceeds to step 2; if the flow threshold Qs is less than the output flow Q of the mixed gas, the opening of the mixing valve 2 is reduced, and after reducing the opening of the mixing valve 2, the process proceeds to step 2; if the absolute value of the difference between the flow threshold Qs and the output flow Q of the received mixed gas is less than the flow deviation threshold ΔQ, the process ends.

[0026] Specifically, the temperature threshold Ts, flow threshold Qs, temperature deviation threshold ΔT and flow deviation threshold ΔQ are set according to the actual working conditions, and the opening of the main air valve 3 and the air mixing valve 2 is dynamically adjusted by the upper computer until the absolute value of the difference between the temperature threshold Ts and the temperature T of the received mixed gas is less than the temperature deviation threshold ΔT and if the absolute value of the difference between the flow threshold Qs and the output flow Q of the received mixed gas is less than the flow deviation threshold ΔQ, maintaining the opening of the main air valve 3 and the opening of the air mixing valve 2 at this time can enable the system to stably output gas that meets the working conditions.

[0027] Furthermore, a first check valve is provided between the ultra-high temperature solid-state heat storage device 1 and the air mixing pipe 5 ; and a second check valve is provided between the air mixing valve 2 and the air mixing pipe 5 .

[0028] Specifically, the first check valve helps prevent the gas in the air mixing pipe from flowing back to the ultra-high temperature solid-state heat storage device, and the second check valve helps prevent the gas in the air mixing pipe from flowing back to the air mixing valve, thereby ensuring system stability.

[0029] Furthermore, the hot air output system of the ultra-high temperature solid-state heat storage device also includes an alarm, which is communicatively connected to the host computer; the host computer determines whether the temperature of the mixed gas is greater than the warning temperature value, and if so, generates an alarm signal and sends the alarm signal to the alarm, which sounds an alarm based on the received alarm signal.

[0030] Specifically, the ultra-high temperature solid-state heat storage device can output a maximum hot air temperature of 550°C, and the alarm can prevent the temperature of the mixed gas from being too high and affecting the normal operation of the system.

[0031] Furthermore, the temperature deviation threshold ΔT is set to 5°C, and the temperature threshold Ts is within the range of 180°C to 300°C.

[0032] Specifically, the temperature threshold Ts and the temperature deviation threshold ΔT may be set according to actual working conditions.

[0033] Furthermore, the ultra-high temperature heat storage device is a solid heat storage electric boiler.

[0034] Specifically, the solid thermal storage electric boiler can quickly heat up the input gas, thereby improving the efficiency of the hot air output system of the ultra-high temperature solid-state thermal storage device.

[0035] Furthermore, the air mixing duct 5 is a metal duct or a composite duct. Specifically, the metal duct or the composite duct is conducive to the full mixing of gases of different temperatures.

Claims

1. A hot air output method for an ultra-high temperature solid-state heat storage device, characterized in that: include: Ultra-high temperature solid-state heat storage device (1), air mixing valve (2), main air valve (3), fan (4), air mixing pipe (5), gas input device (9), gas output device (8), flow sensor (6), temperature sensor (7) and host computer; The gas input device (9) delivers the gas to the fan (4), and the fan (4) delivers the delivered gas to the ultra-high temperature solid-state heat storage device (1) through the main air valve (3). The fan (4) also delivers the delivered gas to the air mixing pipe (5) through the air mixing valve (2); The ultra-high temperature solid-state heat storage device (1) heats the gas fed in and feeds the heated gas into the air mixing pipe (5); the air mixing pipe (5) mixes the gas fed in by the ultra-high temperature solid-state heat storage device (1) and the air mixing valve (2), and feeds the mixed gas into the gas output device (8); the gas output device (8) outputs the mixed gas fed in; The main air valve (3) is used to adjust the gas velocity delivered by the fan (4) to the ultra-high temperature heat storage device (1) by changing the opening; the air mixing valve (2) is used to adjust the gas velocity delivered by the fan (4) to the air mixing pipe (5) by changing the opening; The air outlet of the air mixing pipe (5) is provided with a temperature sensor (7) and a flow sensor (6); the host computer is used to control the temperature sensor (7) to obtain the temperature of the mixed gas and send the temperature of the mixed gas to the host computer; the host computer controls the flow sensor (6) to obtain the output flow of the mixed gas and sends the output flow of the mixed gas to the host computer; The upper computer is also used to adjust the opening of the air mixing valve (2) or the main air valve (3) according to the temperature of the received mixed gas and the output flow rate of the mixed gas; The upper computer adjusts the opening of the air mixing valve (2) or the main air valve (3) according to the temperature of the received mixed gas and the output flow rate of the mixed gas, including: Step 1: Set the temperature threshold Ts, flow threshold Qs, temperature deviation threshold ΔT and flow deviation threshold ΔQ; Step 2: The upper computer controls the temperature sensor (7) to obtain the temperature T of the mixed gas; judge whether the absolute value of the difference between the temperature threshold value Ts and the received temperature T of the mixed gas is greater than the temperature deviation threshold value ΔT, and if so, judge the size relationship between the temperature threshold value Ts and the temperature T of the mixed gas; if the temperature threshold value Ts is greater than the temperature T of the mixed gas, increase the main air valve opening, increase the main air valve (3) opening and then proceed to step 3; if the temperature threshold value T is less than the temperature T1 of the mixed gas, reduce the main air valve (3) opening, reduce the main air valve (3) opening and then proceed to step 3; if the absolute value of the difference between the temperature threshold value Ts and the received temperature T of the mixed gas is less than the temperature deviation threshold value ΔT, then proceed to step 3; Step 3: The upper computer controls the flow sensor (6) to obtain the output flow Q of the mixed gas; the upper computer determines whether the absolute value of the difference between the flow threshold Qs and the output flow Q of the received mixed gas is greater than the flow deviation threshold ΔQ, and if so, determines the magnitude relationship between the flow threshold Qs and the output flow Q of the mixed gas; if the flow threshold Qs is greater than the output flow Q of the mixed gas, the opening of the air mixing valve (2) is increased, and after increasing the opening of the air mixing valve (2), the process proceeds to step 2; if the flow threshold Qs is less than the output flow Q of the mixed gas, the opening of the air mixing valve (2) is reduced, and after reducing the opening of the air mixing valve (2), the process proceeds to step 2; if the absolute value of the difference between the flow threshold Qs and the output flow Q of the received mixed gas is less than the flow deviation threshold ΔQ, the process ends.

2. The hot air output method of an ultra-high temperature solid-state heat storage device according to claim 1, characterized in that: A first check valve is provided between the ultra-high temperature solid-state heat storage device (1) and the air mixing pipe (5); and a second check valve is provided between the air mixing valve (2) and the air mixing pipe (5).

3. The hot air output method of an ultra-high temperature solid-state heat storage device according to claim 1 is characterized in that: It also includes an alarm, which is connected to the host computer; the host computer determines whether the temperature of the mixed gas is greater than the warning temperature value, and if so, generates an alarm signal, sends the alarm signal to the alarm, and the alarm sounds an alarm according to the received alarm signal.

4. The hot air output method of an ultra-high temperature solid-state heat storage device according to claim 1, characterized in that: The temperature deviation threshold ΔT is set to 5°C, and the temperature threshold Ts is in the range of 180°C to 300°C.

5. The hot air output method of an ultra-high temperature solid-state heat storage device according to claim 1, characterized in that: The ultra-high temperature heat storage device is a solid heat storage electric boiler.

6. The hot air output method of an ultra-high temperature solid-state heat storage device according to claim 1, characterized in that: The air mixing duct (5) is a metal air duct or a composite air duct.

Images