Superhigh-temperature solid heat storage device steam output system based on bypass air mixing

Abstract

The invention discloses an ultrahigh-temperature solid-state heat storage device steam output system based on bypass air mixing, relates to the field of solid-state heat storage, and solves the problem that the output temperature of an ultrahigh-temperature solid-state heat storage device is not reduced in the prior art. Low-temperature air output by the steam generation equipment is divided into two paths, and the first path enters the ultrahigh-temperature solid heat storage device through a main pipeline to be heated into high-temperature air; after the second path of air enters the air mixing pipeline, the gas output by the air mixing fan on the air mixing pipeline is converged with the high-temperature air output by the first path of main pipeline to form low-temperature air, and then the low-temperature air enters the steam generation equipment through the hot air input pipeline to output steam; the first pressure sensor is arranged on the steam output pipeline; the first pressure sensor is used for collecting steam pressure in real time. The temperature sensor is used for collecting hot air temperature; the controller judges whether the frequency of a main fan is adjusted or not according to the steam pressure; the controller is further used for judging whether to adjust the frequency of the air mixing machine or not according to the hot air temperature. The device is used for reducing the output temperature of the ultrahigh-temperature solid-state heat storage device.

Description

Technical Field

[0001] The invention relates to the field of solid-state heat storage, and belongs to the control of air volume and air pressure. Background Art

[0002] In ultra-high temperature solid-state heat storage devices, the temperature variation range of the output hot air is large, and the maximum hot air temperature reaches above 750°C. Therefore, the material requirements for the back-end steam generation equipment are extremely high, which increases the cost of the steam generation equipment and shortens the service life of the equipment. However, there is a lack of systems to reduce the output temperature of ultra-high temperature solid-state heat storage devices and increase the service life of steam generation equipment. Summary of the invention

[0003] The purpose of the present invention is to solve the problem of the lack of a system to reduce the output temperature of an ultra-high temperature solid-state heat storage device and increase the service life of steam generating equipment, and proposes a steam output system for an ultra-high temperature solid-state heat storage device based on bypass mixing air.

[0004] A steam output system for an ultra-high temperature solid-state heat storage device based on bypass air mixing, the system comprising an ultra-high temperature solid-state heat storage device, a main fan, an air mixer, a No. 1 pressure sensor, a steam generating device, a temperature sensor, a main pipeline, an air mixing pipeline, a steam output pipeline, a hot air input pipeline and a controller;

[0005] The low-temperature air output by the steam generating equipment is divided into two paths, wherein the first path enters the ultra-high temperature solid-state heat storage device through the main pipeline to be heated into high-temperature air, and the main fan is arranged in the main pipeline;

[0006] After the second route enters the mixed air duct, the gas output by the mixer on the mixed air duct merges with the high-temperature air output from the first main duct to form low-temperature air, and then enters the steam generating device through the hot air input duct, and the steam generating device outputs steam through the steam output duct; the No. 1 pressure sensor is set on the steam output duct;

[0007] The temperature sensor is arranged on the hot air input duct;

[0008] Pressure sensor No. 1 is used to collect steam pressure in real time and transmit it to the controller;

[0009] Temperature sensor, used to collect hot air temperature and transmit it to the controller;

[0010] A controller, used for detecting whether the difference between the received steam pressure and the set steam pressure value exceeds the allowable value, and if so, adjusting the main fan frequency, and if not, keeping the main fan frequency unchanged;

[0011] It is also used to detect whether the difference between the received hot air temperature and the set temperature value exceeds the allowable value. If so, the frequency of the mixing fan is adjusted; if not, the frequency of the mixing fan is kept unchanged.

[0012] Preferably, the system further comprises a main air valve and a second pressure sensor;

[0013] The main air valve is arranged on the main pipeline between the ultra-high temperature solid-state heat storage device and the main air fan;

[0014] The second pressure sensor is arranged on the main pipeline at the outlet of the ultra-high temperature solid-state heat storage device, and is used to collect the main pipeline pressure in real time and transmit it to the controller;

[0015] The controller is also used to detect whether the difference between the received main pipeline pressure and the set main pipeline pressure value exceeds the allowable value. If so, the main air valve opening is adjusted; if not, the main air valve opening is kept unchanged.

[0016] Preferably, the system further comprises an air mixing valve and a No. 3 pressure sensor;

[0017] The air mixing valve is arranged on the air mixing duct;

[0018] The third pressure sensor is set on the mixed air duct to collect the mixed air duct pressure in real time and transmit it to the controller;

[0019] The controller is also used to detect whether the difference between the received mixed air duct pressure and the set mixed air duct pressure value exceeds the allowable value. If yes, the opening of the mixed air valve is adjusted; if not, the opening of the mixed air valve is kept unchanged.

[0020] Preferably, the system further comprises a water supply pipeline;

[0021] Water is supplied to the steam generating equipment through the water supply pipe.

[0022] The beneficial effects of the present invention are:

[0023] The present invention utilizes a bypass air mixing structure, and changes the heat output by the solid-state heat storage device by adjusting the frequency of the main fan through a No. 1 pressure sensor and a main fan, and uses a temperature sensor and a mixer to adjust the frequency of the mixer to change the temperature of the air after confluence, thereby reducing the temperature output by the solid-state heat storage device, reducing the requirements on the material of the steam generating equipment, and increasing the service life, while ensuring the stability of the output steam. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the principle of the steam output system of the ultra-high temperature solid-state heat storage device based on bypass air mixing;

[0025] Figure 2 This is the control principle diagram of the steam output system of the ultra-high temperature solid-state heat storage device based on bypass mixing air. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0029] Example:

[0030] Combination Figure 1 This embodiment is described, a steam output system of an ultra-high temperature solid-state heat storage device based on bypass air mixing, the system includes an ultra-high temperature solid-state heat storage device 3, a main fan 5, an air mixer 6, a first pressure sensor 8, a steam generating device 9, a temperature sensor 10, a main pipeline 11, an air mixing pipeline 12, a steam output pipeline 13, a hot air input pipeline 14 and a controller;

[0031] The low-temperature air output by the steam generating device 9 is divided into two paths, wherein the first path enters the ultra-high temperature solid heat storage device 3 through the main pipeline 11 to be heated into high-temperature air, and the main fan 5 is arranged in the main pipeline 11;

[0032] After the second route enters the air mixing duct 12, the gas output by the air mixer 6 on the air mixing duct 12 merges with the high-temperature air output by the first route main duct 11 to form low-temperature air, and then enters the steam generating device 9 through the hot air input duct 14, and the steam generating device 9 outputs steam through the steam output duct 13; the first pressure sensor 8 is arranged on the steam output duct 13;

[0033] The temperature sensor 10 is arranged on the hot air input duct 14;

[0034] The first pressure sensor 8 is used to collect steam pressure in real time and transmit it to the controller;

[0035] The temperature sensor 10 is used to collect the hot air temperature and transmit it to the controller;

[0036] The controller is used to detect whether the difference between the received steam pressure and the set steam pressure value exceeds the allowable value, and if so, adjust the frequency of the main fan 5, and if not, keep the frequency of the main fan 5 unchanged;

[0037] It is also used to detect whether the difference between the received hot air temperature and the set temperature value exceeds the allowable value. If yes, the frequency of the mixing fan 6 is adjusted; if not, the frequency of the mixing fan 6 is kept unchanged.

[0038] Specifically, the frequencies of the main fan 5 and the mixer fan 6 are adjusted in real time to generate hot air at a constant temperature, thereby ensuring the normal and stable operation of the system.

[0039] The No. 1 pressure sensor 8 is used to ensure the output steam quality; the temperature sensor 10 is used to ensure the hot air temperature.

[0040] The air mixer is used to keep the inlet air temperature of the steam generating equipment within a reasonable range.

[0041] This embodiment further includes: the system also includes a main air valve 4 and a second pressure sensor 1;

[0042] The main air valve 4 is arranged on the main pipeline 11 between the ultra-high temperature solid-state heat storage device 3 and the main air blower 5;

[0043] The second pressure sensor 1 is arranged on the main pipeline 11 at the outlet of the ultra-high temperature solid-state heat storage device 3, and is used to collect the pressure of the main pipeline 11 in real time and transmit it to the controller;

[0044] The controller is also used to detect whether the difference between the received main pipeline 11 pressure and the set main pipeline pressure value exceeds the allowable value. If yes, the opening of the main air valve 4 is adjusted; if not, the opening of the main air valve 4 is kept unchanged.

[0045] Specifically, a constant amount of hot air can be generated by adjusting the opening of the main air valve 4 .

[0046] The No. 2 pressure sensor 1 is used to ensure the main pipeline pressure.

[0047] This embodiment further includes: the system also includes an air mixing valve 7 and a No. 3 pressure sensor 2;

[0048] The air mixing valve 7 is arranged on the air mixing duct 12;

[0049] The third pressure sensor 2 is arranged on the air mixing duct 12, and is used to collect the pressure of the air mixing duct 12 in real time and transmit it to the controller;

[0050] The controller is also used to detect whether the difference between the received pressure of the air mixing duct 12 and the set air mixing duct pressure value exceeds the allowable value. If yes, the opening of the air mixing valve 7 is adjusted; if not, the opening of the air mixing valve 7 is kept unchanged.

[0051] Specifically, a constant amount of hot air can be generated by adjusting the openings of the main air valve 4 and the air mixing valve 7 .

[0052] The No. 3 pressure sensor 2 is used to ensure the pressure of the mixed air duct.

[0053] The main air valve and the mixing air valve are used to balance the pipeline pressure when the frequency difference between the main fan and the mixing fan is large, ensuring the normal operation of the system.

[0054] This embodiment further includes: a water supply pipeline;

[0055] Water is replenished into the steam generating device 9 through the water replenishment pipeline.

[0056] Combination Figure 2 The working principle of this embodiment is described as follows:

[0057] When the No. 1 pressure sensor 8 detects that the output steam pressure deviation exceeds the set value △P1, the frequency of the main fan 5 is adjusted to change the heat output by the ultra-high temperature solid-state heat storage device 3, thereby affecting the pressure of the main air duct and the temperature of the air after confluence. Otherwise, the frequency of the main fan 5 remains unchanged.

[0058] When the No. 2 pressure sensor 1 detects that the main air duct pressure deviation exceeds the set value △P2, the opening of the main air valve 4 is adjusted to ensure that the main air duct pressure remains within a reasonable range, otherwise the opening of the main air valve 4 remains unchanged.

[0059] When the temperature sensor 10 detects that the temperature deviation of the hot air after confluence exceeds the set value △T1, the frequency of the mixing fan 6 is adjusted to ensure the air temperature after confluence, thereby affecting the pressure of the mixing duct, otherwise the frequency of the mixing fan 6 is kept unchanged.

[0060] When the No. 3 pressure sensor 2 detects that the pressure deviation of the mixed air duct exceeds the set value △P3, the opening of the mixed air valve 7 is adjusted to ensure that the pressure of the mixed air duct remains within a reasonable range. Otherwise, the opening of the mixed air valve 7 is kept unchanged, and finally constant temperature and pressure steam is output.

[0061] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. The steam output system of the ultra-high temperature solid-state heat storage device based on bypass air mixing is characterized in that: The system comprises an ultra-high temperature solid-state heat storage device (3), a main air blower (5), an air mixer (6), a No. 1 pressure sensor (8), a steam generating device (9), a temperature sensor (10), a main pipeline (11), an air mixing pipeline (12), a steam output pipeline (13), a hot air input pipeline (14) and a controller; The low-temperature air output by the steam generating device (9) is divided into two paths, wherein the first path enters the ultra-high temperature solid-state heat storage device (3) through the main pipeline (11) to be heated into high-temperature air, and the main fan (5) is arranged in the main pipeline (11); After the second route enters the air mixing duct (12), the gas output by the air mixer (6) on the air mixing duct (12) merges with the high-temperature air output by the first route main duct (11) to form low-temperature air, and then enters the steam generating device (9) through the hot air input duct (14), and the steam generating device (9) outputs steam through the steam output duct (13); A No. 1 pressure sensor (8) is arranged on the steam output pipeline (13); a temperature sensor (10) is arranged on the hot air input pipeline (14); A pressure sensor No. 1 (8), used for collecting steam pressure in real time and transmitting it to the controller; A temperature sensor (10) is used to collect the hot air temperature and transmit it to the controller; A controller, used for detecting whether the difference between the received steam pressure and the set steam pressure value exceeds the allowable value, and if so, adjusting the frequency of the main fan (5); if not, keeping the frequency of the main fan (5) unchanged; It is also used to detect whether the difference between the received hot air temperature and the set temperature value exceeds the allowable value. If so, the frequency of the mixing fan (6) is adjusted; if not, the frequency of the mixing fan (6) is kept unchanged.

2. The steam output system of the ultra-high temperature solid state heat storage device based on bypass air mixing according to claim 1 is characterized in that: The system further comprises a main air valve (4) and a second pressure sensor (1); The main air valve (4) is arranged on the main pipeline (11) between the ultra-high temperature solid-state heat storage device (3) and the main air fan (5); The second pressure sensor (1) is arranged on the main pipeline (11) at the outlet of the ultra-high temperature solid-state heat storage device (3) and is used to collect the pressure of the main pipeline (11) in real time and transmit it to the controller; The controller is also used to detect whether the difference between the received main pipeline (11) pressure and the set main pipeline pressure value exceeds the allowable value, and if so, adjust the opening of the main air valve (4); if not, keep the opening of the main air valve (4) unchanged.

3. The steam output system of the ultra-high temperature solid state heat storage device based on bypass air mixing according to claim 2 is characterized in that: The system further comprises an air mixing valve (7) and a No. 3 pressure sensor (2); The air mixing valve (7) is arranged on the air mixing duct (12); The third pressure sensor (2) is arranged on the air mixing duct (12) and is used to collect the pressure of the air mixing duct (12) in real time and transmit it to the controller; The controller is also used to detect whether the difference between the received pressure of the air mixing duct (12) and the set air mixing duct pressure value exceeds the allowable value, and if so, adjust the opening of the air mixing valve (7); if not, keep the opening of the air mixing valve (7) unchanged.

4. The steam output system of the ultra-high temperature solid state heat storage device based on bypass air mixing according to claim 1 is characterized in that: The system also includes a water supply pipeline; Water is replenished into the steam generating device (9) through the water replenishment pipeline.

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