Hot water output system of ultrahigh-temperature solid heat storage device

Abstract

The hot water output system of the ultrahigh-temperature solid heat storage device comprises an upper computer, the ultrahigh-temperature heat storage device, an air mixing valve, a main air valve, a fan, a second temperature sensor, an air-water heat exchanger, a first temperature sensor and an air mixing pipe. A double-air-valve air mixing design is adopted, the opening degrees of the main air valve and the air mixing valve are controlled according to the temperature of hot water output by the air-water heat exchanger and the temperature of air input by the air-water heat exchanger in the system, constant-temperature and constant-quantity hot air can be generated, the requirement for materials of the air-water heat exchanger is lowered, the service life of the air-water heat exchanger is prolonged, and meanwhile it is guaranteed that the temperature of the output hot water is stable.

Description

Technical Field

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

[0002] In the existing hot water output system of ultra-high temperature solid-state heat storage device, the maximum hot air temperature of the hot air output by the ultra-high temperature solid-state heat storage device reaches above 750°C, and the temperature variation range of the output hot air is large, so the material requirements for the rear-end air-to-water heat exchanger are extremely high, which leads to increased costs; and when the medium temperature varies in a large range, the service life of the air-to-water heat exchanger equipment will be reduced, and the medium flow rate needs to change synchronously and significantly to ensure the stability of the system output enthalpy value. Therefore, the existing hot water output system of ultra-high temperature solid-state heat storage device is difficult to control, and it is not easy to maintain the stability of the output hot water temperature. Summary of the invention

[0003] In order to solve the problem in the prior art that the hot water output system of the ultra-high temperature solid-state heat storage device is difficult to control and difficult to maintain the stability of the output hot water temperature, a hot water output system of the ultra-high temperature solid-state heat storage device is proposed;

[0004] A hot water output system of an ultra-high temperature solid-state heat storage device, comprising: a host computer, an ultra-high temperature heat storage device, an air mixing valve, a main air valve, a fan, a second temperature sensor, an air-water heat exchanger, a first temperature sensor and an air mixing pipe;

[0005] The air-water heat exchanger outputs gas to the fan, which delivers the input gas to the ultra-high temperature heat storage device through the main air valve. The fan also delivers the input gas to the mixing air pipe through the mixing air valve.

[0006] The ultra-high temperature heat storage device heats the input gas, and inputs the heated gas into the air mixing pipe; the air mixing pipe fully mixes the gas input from the ultra-high temperature heat storage device and the air mixing valve, and inputs the fully mixed gas into the air inlet of the air-water heat exchanger; the air-water heat exchanger heats the liquid in the air-water heat exchanger through the gas input from the air mixing pipe to obtain the heated liquid and the cooled gas, and inputs the cooled gas into the fan through the air outlet of the air-water heat exchanger; the main air valve is used to adjust the gas rate input from the fan to the ultra-high temperature heat storage device by changing the opening; the air mixing valve is used to adjust the gas rate input from the fan to the air mixing pipe by changing the opening;

[0007] A second temperature sensor is provided at the hot water outlet of the air-water heat exchanger, and a first temperature sensor is provided at the air inlet of the air-water heat exchanger;

[0008] The host computer is used to control the second temperature sensor to obtain the hot water temperature T output by the air-water heat exchanger m2 The second temperature sensor measures the hot water temperature T m2Sent to the host computer; the host computer is used to control the first temperature sensor to obtain the input gas temperature T of the gas-water heat exchanger m1 The first temperature sensor measures the gas temperature T m1 Send to the host computer;

[0009] The host computer is also used to receive the output hot water temperature T m2 and the input gas temperature T m1 Adjust the opening of the main air valve or mixing air valve.

[0010] Beneficial Effects

[0011] The hot water output system of the ultra-high temperature solid-state heat storage device based on double air valve mixing air of the present application adopts a double air valve mixing air design, and controls the opening of the main air valve and the mixing air valve according to the hot water output temperature of the air-water heat exchanger and the gas input temperature of the air-water heat exchanger in the system, so as to generate hot air of constant temperature and quantity, reduce the material requirements for the air-water heat exchanger, increase the service life of the air-water heat exchanger, and ensure the stability of the output hot water temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a hot water output system of an ultra-high temperature solid-state heat storage device according to a specific implementation method of the present application;

[0013] Figure 2 This is a flow chart of the upper computer adjusting the opening of the main air valve or the mixing air valve according to the specific implementation mode of the present application. DETAILED DESCRIPTION

[0014] The following will be combined Figures 1 to 2 , describing the present embodiment, a hot water output system of an ultra-high temperature solid state heat storage device, comprising: a host computer, an ultra-high temperature heat storage device 1, an air mixing valve 2, a main air valve 3, a fan 4, a second temperature sensor 5, an air-water heat exchanger 6, a first temperature sensor 7 and an air mixing pipe 8;

[0015] The gas-water heat exchanger 6 outputs gas to the fan 4, and the fan 4 delivers the input gas to the ultra-high temperature heat storage device 1 through the main air valve 3. The fan 4 also delivers the input gas to the mixing air pipe 8 through the mixing air valve 2;

[0016] The ultra-high temperature heat storage device 1 heats the input gas, and inputs the heated gas into the air mixing pipe 8; the air mixing pipe 8 fully mixes the gas input from the ultra-high temperature heat storage device 1 and the air mixing valve 2, and inputs the fully mixed gas into the air inlet of the air-water heat exchanger 6; the air-water heat exchanger 6 heats the liquid in the air-water heat exchanger 6 through the gas input from the air mixing pipe 8 to obtain the heated liquid and the cooled gas, and inputs the cooled gas into the fan 4 through the air outlet of the air-water heat exchanger 6; the main air valve 3 is used to adjust the gas rate input from 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 rate input from the fan 4 to the air mixing pipe 8 by changing the opening;

[0017] A second temperature sensor 5 is provided at the hot water outlet of the air-water heat exchanger 6, and a first temperature sensor 7 is provided at the air inlet of the air-water heat exchanger 6;

[0018] The host computer is used to control the second temperature sensor 5 to obtain the hot water temperature T output by the air-water heat exchanger. m2 The second temperature sensor 5 measures the hot water temperature T m2 The host computer is used to control the first temperature sensor 7 to obtain the input gas temperature T of the gas-water heat exchanger. m1 The first temperature sensor 7 measures the gas temperature T m1 Send to the host computer;

[0019] The host computer is also used to receive the output hot water temperature T m2 and the input gas temperature T m1 Adjust the opening of the main air valve or mixing air valve.

[0020] Specifically, the ultra-high temperature heat storage device 1 heats the gas and inputs it into the mixing air pipe 8. The temperature of the gas input into the mixing air pipe 8 by the mixing air valve 2 is lower than the temperature output by the ultra-high temperature heat storage device 1. The mixing air pipe fully mixes the input gases of different temperatures and inputs them into the gas-water exchanger, thereby ensuring the stability of the input gas temperature of the gas-water exchanger and improving the service life of the gas-water heat exchanger. The upper computer adjusts the opening of the main air valve and the mixing air valve according to the output liquid temperature of the gas-water exchanger and the input gas temperature of the gas-water exchanger, thereby ensuring the constant output liquid temperature of the gas-water exchanger.

[0021] Furthermore, the host computer receives the output hot water temperature T m2 and the input gas temperature T m1 Adjust the opening of the main air valve or mixing air valve, including:

[0022] Step 1: Set the hot water standard temperature T S2 , hot water temperature deviation ΔT2, gas standard temperature T S1 and gas temperature deviation ΔT1;

[0023] Step 2: The host computer controls the second temperature sensor 5 to obtain the output hot water temperature T m2 , determine the received hot water temperature T m2 With hot water standard temperature T S2 Is the absolute value of the difference greater than the hot water temperature deviation value ΔT2? If so, the hot water temperature T m2 With hot water standard temperature T S2 If the hot water temperature T m2 Less than the standard temperature of hot water T S2 Then increase the main air valve opening, and then go to step 3; if the hot water temperature T m2 Greater than the standard temperature of hot water T S2 Then reduce the main air valve opening, and then go to step 3; if the received hot water temperature T m2 With hot water standard temperature T S2 If the absolute value of the difference is less than the hot water temperature deviation value ΔT2, then proceed to step 3;

[0024] Step 3: The host computer controls the first temperature sensor 7 to obtain the gas temperature T m1 , determine the gas temperature T m1 With gas standard temperature T S1 Is the absolute value of the difference greater than the gas temperature deviation value ΔT1? If so, the gas temperature T m1 With gas standard temperature T S1 If the gas temperature T m1 Greater than the gas standard temperature T S1 , then the large mixing valve opening is given, and the end is completed; if the gas temperature T m1 Less than the standard temperature of the gas T S1 , then reduce the opening of the air mixing valve and end; gas temperature T m1 With gas standard temperature T S1 If the absolute value of the difference is smaller than the gas temperature deviation ΔT1, the process returns to step 2.

[0025] Specifically, Figure 2 As shown, the host computer outputs hot water temperature T m2 and the input gas temperature T m1 Dynamically adjust the opening of the main air valve or mixing air valve to ensure the stability of the output liquid temperature of the air-water exchanger.

[0026] Furthermore, the hot water output system of the ultra-high temperature solid-state heat storage device based on double air valve mixing air also includes an alarm, which is connected to the host computer for communication; the host computer determines the received hot water temperature T output by the air-water heat exchanger. m2 Is it greater than the output threshold T? If so, an alarm signal is generated and sent to the alarm device; the alarm device sounds an alarm based on the received alarm signal.

[0027] Specifically, the setting of the alarm is convenient for sounding an alarm when the temperature of the system output liquid is abnormal, and promptly reminding relevant staff to check the situation.

[0028] Furthermore, when the hot water standard temperature T is set S2 When the gas standard temperature is 70℃, S1 The temperature is set to 180°C, the hot water temperature deviation ΔT2 is set to 1°C, and the gas temperature deviation ΔT1 is set to 5°C.

[0029] Specifically, the hot water output system of the ultra-high temperature solid-state heat storage device based on double air valve mixing air of the present application is applicable to a variety of scenarios, and the values ​​of relevant parameters can be set according to actual needs. When the system is used for heating of residents in winter, due to heating needs, the water temperature of the heating pipe network needs to reach 70°C. At this time, the standard temperature of hot water T S2 When the gas standard temperature is 70℃, S1 Set to 180°C, the hot water temperature deviation value ΔT2 is set to 1°C, and the gas temperature deviation value ΔT1 is set to 1°C. The hot water output system of this application can meet the heating needs of residents in winter.

[0030] Furthermore, the ultra-high temperature heat storage device is a solid heat storage electric boiler. Specifically, the maximum temperature of the solid heat storage electric boiler can reach 750°C, which can quickly heat up the input gas, meet the needs of the ultra-high temperature solid heat storage device hot water output system based on double air valve mixing, and improve the efficiency of the ultra-high temperature solid heat storage device hot water output system based on double air valve mixing.

[0031] Further, the air mixing duct is a metal duct or a composite duct. Specifically, the metal duct or the composite duct is conducive to the full mixing of gases at different temperatures.

[0032] Furthermore, the alarm is an audible and visual alarm. Specifically, the audible and visual alarm is helpful for relevant technical personnel to deal with abnormal situations in a timely manner.

Claims

1. A hot water output system of an ultra-high temperature solid-state heat storage device, characterized in that: include: A host computer, an ultra-high temperature heat storage device (1), an air mixing valve (2), a main air valve (3), a fan (4), a second temperature sensor (5), an air-water heat exchanger (6), a first temperature sensor (7) and an air mixing pipe (8); The air-water heat exchanger (6) outputs gas to the fan (4), and the fan (4) delivers the input gas to the ultra-high temperature heat storage device (1) through the main air valve (3). The fan (4) also delivers the input gas to the air mixing pipe (8) through the air mixing valve (2); The ultra-high temperature heat storage device (1) heats the input gas and inputs the heated gas into the air mixing pipe (8); the air mixing pipe (8) fully mixes the gas input from the ultra-high temperature heat storage device (1) and the air mixing valve (2), and inputs the fully mixed gas into the air inlet of the air-water heat exchanger (6); the air-water heat exchanger (6) heats the liquid in the air-water heat exchanger (6) through the gas input from the air mixing pipe (8) to obtain the heated liquid and the cooled gas, and inputs the cooled gas into the fan (4) through the air outlet of the air-water heat exchanger (6); the main air valve (3) is used to adjust the gas velocity input from 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 input from the fan (4) to the air mixing pipe (8) by changing the opening; A second temperature sensor (5) is provided at the hot water outlet of the air-water heat exchanger (6), and a first temperature sensor (7) is provided at the air inlet of the air-water heat exchanger (6); The host computer is used to control the second temperature sensor (5) to obtain the hot water temperature T output by the air-water heat exchanger. m2 The second temperature sensor (5) measures the hot water temperature T m2 The host computer is used to control the first temperature sensor (7) to obtain the input gas temperature T of the gas-water heat exchanger. m1 The first temperature sensor (7) measures the gas temperature T m1 Send to the host computer; The host computer is also used to receive the output hot water temperature T m2 and the input gas temperature T m1 Adjust the opening of the main air valve or mixing air valve.

2. The hot water output system of the ultra-high temperature solid state heat storage device according to claim 1, characterized in that: The host computer receives the output hot water temperature T m2 and the input gas temperature T m1 Adjust the opening of the main air valve or mixing air valve, including: Step 1: Set the hot water standard temperature T S2 , hot water temperature deviation ΔT2, gas standard temperature T S1 and gas temperature deviation ΔT1; Step 2: The host computer controls the second temperature sensor to obtain the output hot water temperature T m2 , determine the received hot water temperature T m2 With hot water standard temperature T S2 Is the absolute value of the difference greater than the hot water temperature deviation value ΔT2? If so, the hot water temperature T m2 With hot water standard temperature T S2 If the hot water temperature T m2 Less than the standard temperature of hot water T S2 Then increase the main air valve opening, and then go to step 3; if the hot water temperature T m2 Greater than the standard temperature of hot water T S2 Then reduce the main air valve opening, and then go to step 3; if the received hot water temperature T m2 With hot water standard temperature T S2 If the absolute value of the difference is less than the hot water temperature deviation value ΔT2, then proceed to step 3; Step 3: The host computer controls the first temperature sensor to obtain the input gas temperature T m1 , determine the gas temperature T m1 With gas standard temperature T S1 Is the absolute value of the difference greater than the gas temperature deviation value ΔT1? If so, the gas temperature T m1 With gas standard temperature T S1 If the gas temperature T m1 Greater than the gas standard temperature T S1 , then the large mixing valve opening is given, and the end is completed; if the gas temperature T m1 Less than the standard gas temperature T S1 , then reduce the opening of the air mixing valve and end; gas temperature T m1 With gas standard temperature T S1 If the absolute value of the difference is smaller than the gas temperature deviation ΔT1, the process returns to step 2.

3. The hot water output system of the ultra-high temperature solid-state heat storage device according to claim 1, characterized in that: It also includes an alarm device, which is connected to the host computer for communication; the host computer determines the output hot water temperature T of the received air-water heat exchanger. m2 Is it greater than the output threshold T? If so, an alarm signal is generated and sent to the alarm device; the alarm device sounds an alarm based on the received alarm signal.

4. The hot water output system of the ultra-high temperature solid state heat storage device according to claim 2, characterized in that: When setting the hot water standard temperature T S2 When the gas standard temperature is 70℃, S1 The temperature is set to 180°C, the hot water temperature deviation ΔT2 is set to 1°C, and the gas temperature deviation ΔT1 is set to 5°C.

5. The hot water output system of the 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 water output system of the ultra-high temperature solid state heat storage device according to claim 1, characterized in that: The air mixing duct (8) is a metal air duct or a composite air duct.

7. The hot water output system of the ultra-high temperature solid state heat storage device according to claim 3, characterized in that: The alarm is an audible and visual alarm.

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