CN114790951B - Method and related device for controlling cylinder liner water temperature of gas generator - Google Patents
Method and related device for controlling cylinder liner water temperature of gas generator Download PDFInfo
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- CN114790951B CN114790951B CN202210210848.1A CN202210210848A CN114790951B CN 114790951 B CN114790951 B CN 114790951B CN 202210210848 A CN202210210848 A CN 202210210848A CN 114790951 B CN114790951 B CN 114790951B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 253
- 238000000034 method Methods 0.000 title claims abstract description 66
- 239000006096 absorbing agent Substances 0.000 claims abstract description 52
- 230000001276 controlling effect Effects 0.000 claims description 40
- 238000004891 communication Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 117
- 238000001816 cooling Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/16—Cylinder liners of wet type
Abstract
The application discloses a method for controlling cylinder liner water temperature of a gas generator and a related device, wherein the method comprises the steps of periodically obtaining inlet water temperature and outlet water temperature of hot water of an absorber and outlet temperature of cylinder liner water of the gas generator; when the water inlet temperature and the water outlet temperature meet the first preset condition and the outlet temperature meets the second preset condition; adjusting the first opening of the first three-way valve to zero, and comparing the outlet temperature with a first temperature threshold; and if the outlet temperature is smaller than the first temperature threshold, reducing the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and the preset target temperature. According to the method, the opening of the first three-way valve and the opening of the second three-way valve are adjusted according to the inlet water temperature and the outlet water temperature of hot water of the absorber and the outlet temperature of cylinder liner water of the gas generator periodically so as to control the heat exchange amount of the cylinder liner water, so that the outlet temperature of the cylinder liner water of the gas generator is controlled to be a preset target temperature, and the stable operation of the gas generator is ensured.
Description
Technical Field
The application relates to the technical field of gas power generation, in particular to a cylinder sleeve water temperature control method and a related device of a gas generator.
Background
In the gas power generation-waste heat absorption refrigeration system, stable control of the cylinder liner water temperature of the gas generator is important for the operation of the gas generator, because when the cylinder liner water temperature is too high, the risk of causing the gas generator to stop exists, otherwise, when the cylinder liner water temperature is too low, the power generation efficiency of the gas generator is affected. Therefore, how to precisely control the cylinder liner water temperature of the gas generator to ensure the stable operation of the gas generator is a technical problem to be solved.
Disclosure of Invention
The technical problem to be solved by the application is to provide a method and a related device for controlling the cylinder liner water temperature of a gas generator aiming at the defects of the prior art.
In order to solve the technical problem, a first aspect of an embodiment of the present application provides a method for controlling a water temperature of a cylinder liner of a gas generator, the method including:
periodically acquiring the inlet water temperature, the outlet water temperature and the outlet temperature of cylinder sleeve water of the gas generator of hot water of the absorber;
when the inlet water temperature and the outlet water temperature meet a first preset condition and the outlet temperature meets a second preset condition; the method comprises the steps of adjusting a first opening of a first three-way valve to be zero, and comparing the outlet temperature with a first temperature threshold value, wherein the first opening is used for controlling cylinder liner water flow between a cylinder liner water outlet of a gas generator and a heat exchanger inlet;
and if the outlet temperature is smaller than the first temperature threshold, reducing the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and the preset target temperature, wherein the second opening is used for controlling the cylinder liner water flow of the cylinder liner water flowing out of the cylinder liner water outlet of the gas generator to directly flow back to the cylinder liner water inlet of the gas generator.
The cylinder sleeve water temperature control method of the gas generator, wherein the method further comprises the following steps:
if the outlet temperature is greater than or equal to a first temperature threshold, comparing the outlet temperature with a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold;
when the outlet temperature is smaller than a second temperature threshold value, adjusting the second opening of the second three-way valve according to the first target opening, the outlet temperature and the preset target temperature;
and when the outlet temperature is greater than or equal to a second temperature threshold, adjusting the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and a preset target temperature.
The method for controlling the cylinder liner water temperature of the gas generator comprises the following steps of:
the second opening degree of the second three-way valve is adjusted to a target opening degree-first adjustment coefficient (preset target temperature-outlet temperature).
The method for controlling the cylinder liner water temperature of the gas generator comprises the following steps of:
the second opening degree of the second three-way valve is adjusted to the current opening degree + a second adjustment coefficient (preset target temperature-outlet temperature).
The method for controlling the cylinder liner water temperature of the gas generator comprises the following steps of:
the second opening degree of the second three-way valve is adjusted to the current opening degree-a second adjustment coefficient (preset target temperature-outlet temperature).
The cylinder sleeve water temperature control method of the gas generator, wherein the method further comprises the following steps:
when the inlet water temperature and the outlet water temperature meet a first preset condition or the outlet temperature meets a second preset condition, respectively comparing the outlet temperature with a first temperature threshold value and a second temperature threshold value, wherein the first temperature threshold value is smaller than the second temperature threshold value;
if the outlet temperature is smaller than a first temperature threshold value, reducing the first opening of the first three-way valve according to the current opening of the first three-way valve, the outlet temperature and a preset target temperature;
if the outlet temperature is greater than or equal to a first temperature threshold and is smaller than a second temperature threshold, adjusting the first opening of the first three-way valve according to a second target opening, the outlet temperature and a preset target temperature;
and when the outlet temperature is greater than or equal to a second temperature threshold value, the first opening of the first three-way valve is regulated according to the current opening of the first three-way valve, the outlet temperature and a preset target temperature.
The first preset condition is that the temperature difference between the water inlet temperature and the water outlet temperature is greater than a preset temperature difference threshold value, and the water outlet temperature is less than a third temperature threshold value; the second preset condition is that the outlet temperature is less than a fourth temperature threshold.
A second aspect of the embodiments of the present application provides a gas generator cylinder liner water temperature control device, the control device including:
the acquisition module is used for periodically acquiring the inlet water temperature and the outlet water temperature of hot water of the absorber and the outlet temperature of cylinder sleeve water of the gas generator;
the comparison module is used for when the inlet water temperature and the outlet water temperature meet a first preset condition and the outlet temperature meets a second preset condition; the method comprises the steps of adjusting a first opening of a first three-way valve to be zero, and comparing the outlet temperature with a first temperature threshold value, wherein the first opening is used for controlling cylinder liner water flow between a cylinder liner water outlet of a gas generator and a heat exchanger inlet;
and the adjusting module is used for adjusting the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and the preset target temperature when the outlet temperature is smaller than the first temperature threshold value, wherein the second opening is used for controlling the cylinder liner water flow of the cylinder liner water flowing out of the cylinder liner water outlet of the gas generator to directly flow back to the cylinder liner water inlet of the gas generator.
A third aspect of the embodiments of the present application provides a computer readable storage medium storing one or more programs executable by one or more processors to implement steps in a method for controlling water temperature in a cylinder liner of a gas turbine engine as described in any one of the above.
A fourth aspect of the present embodiment provides a terminal device, including: a processor, a memory, and a communication bus; the memory has stored thereon a computer readable program executable by the processor;
the communication bus realizes connection communication between the processor and the memory;
the steps in the method for controlling cylinder liner water temperature of a gas generator according to any one of the above are realized when the processor executes the computer readable program.
The beneficial effects are that: compared with the prior art, the application provides a method for controlling the cylinder liner water temperature of a gas generator and a related device, wherein the method comprises the steps of periodically obtaining the inlet water temperature and the outlet water temperature of hot water of an absorber and the outlet temperature of cylinder liner water of the gas generator; when the inlet water temperature and the outlet water temperature meet a first preset condition and the outlet temperature meets a second preset condition; adjusting the first opening of the first three-way valve to zero, and comparing the outlet temperature with a first temperature threshold; and if the outlet temperature is smaller than a first temperature threshold value, reducing the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and a preset target temperature. According to the method, the inlet water temperature and the outlet water temperature of the hot water of the absorber and the outlet temperature of the cylinder sleeve water of the gas generator are periodically obtained, and the opening of the first three-way valve and the opening of the second three-way valve are adjusted to control the heat exchange amount of the cylinder sleeve water based on the obtained inlet water temperature, the obtained outlet water temperature and the obtained outlet temperature, so that the outlet temperature is controlled to be the preset target temperature, and the stable operation of the gas generator is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without creative effort for a person of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a fuel gas distributed combined cooling, heating and power unit applied to a fuel gas generator cylinder liner water temperature control method.
Fig. 2 is a flowchart of a method for controlling cylinder liner water temperature of a gas generator provided by the application.
Fig. 3 is a flowchart illustrating a method for controlling the cylinder liner water temperature of the gas generator provided in the present application.
Fig. 4 is a schematic structural diagram of a cylinder liner water temperature control device of a gas generator provided by the application.
Fig. 5 is a schematic structural diagram of a terminal device provided in the present application.
Detailed Description
The application provides a method and a related device for controlling the water temperature of cylinder sleeve of a gas generator, which are used for making the purposes, technical schemes and effects of the application clearer and more definite, and the application is further described in detail below by referring to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It should be understood that the sequence number and the size of each step in this embodiment do not mean the sequence of execution, and the execution sequence of each process is determined by the function and the internal logic of each process, and should not constitute any limitation on the implementation process of the embodiment of the present application.
The inventor finds that in the gas power generation system, stable control of the cylinder liner water temperature of the gas power generator is important for the operation of the gas power generator, because when the cylinder liner water temperature is too high, the risk of causing the gas power generator to stop exists, otherwise, when the cylinder liner water temperature is too low, the power generation efficiency of the gas power generator is affected. Therefore, how to precisely control the cylinder liner water temperature of the gas generator to ensure the stable operation of the gas generator is a technical problem to be solved.
In order to solve the above problems, in the embodiment of the present application, the inlet water temperature, outlet water temperature and outlet temperature of the cylinder liner water of the gas generator of the hot water of the absorber are periodically obtained; when the inlet water temperature and the outlet water temperature meet a first preset condition and the outlet temperature meets a second preset condition; adjusting the first opening of the first three-way valve to zero, and comparing the outlet temperature with a first temperature threshold; and if the outlet temperature is smaller than a first temperature threshold value, reducing the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and a preset target temperature. According to the method, the inlet water temperature and the outlet water temperature of the hot water of the absorber and the outlet temperature of the cylinder sleeve water of the gas generator are periodically obtained, and the opening of the first three-way valve and the opening of the second three-way valve are adjusted to control the heat exchange amount of the cylinder sleeve water based on the obtained inlet water temperature, the obtained outlet water temperature and the obtained outlet temperature, so that the outlet temperature is controlled to be the preset target temperature, and the stable operation of the gas generator is ensured.
The application will be further described by the description of embodiments with reference to the accompanying drawings.
The embodiment provides a control method for cylinder liner water temperature of a gas generator, which is applied to a gas distributed combined cooling, heating and power unit, as shown in fig. 1, wherein the gas distributed combined cooling, heating and power unit at least comprises a gas generator, a heat exchanger, an absorber, a first three-way valve and a second three-way valve; the cylinder liner water outlet of the gas generator is respectively connected with the inlet of the heat exchanger and the inlet of the absorber, and the cylinder liner water inlet of the gas generator is respectively connected with the outlet of the heat exchanger and the outlet of the absorber, so that a first heat exchange loop is formed between the gas generator and the heat exchanger, and a second heat exchange loop is formed between the gas generator and the absorber. The first three-way valve is arranged on a connecting pipeline between a cylinder liner water outlet of the gas generator and an inlet of the absorber and is communicated with a connecting pipeline between the cylinder liner water outlet of the gas generator and an inlet of the heat exchanger, so that the flow of cylinder liner water of the gas generator into the heat exchanger and the absorber is controlled through the first three-way valve. The second three-way valve is arranged on a connecting pipeline between the cylinder liner water inlet of the gas generator and the outlet of the absorber and is communicated with a connecting pipeline between the cylinder liner water outlet of the gas generator and the inlet of the absorber, so that the flow of cylinder liner water of the gas generator flowing into the absorber is controlled through the second three-way valve. According to the cylinder liner water temperature control method for the gas generator, the cylinder liner water flow flowing into the absorber is controlled through the control of the first three-way valve and the second three-way valve, so that the cylinder liner water flow flowing into the absorber is matched with the refrigerating capacity of the absorber, the outlet temperature of the gas generator is controlled to be the preset target temperature, and stable operation of the gas generator can be ensured.
The method for controlling the water temperature of the cylinder sleeve of the gas generator provided by the embodiment is as shown in fig. 2 and 3, and comprises the following steps:
s10, periodically acquiring the inlet water temperature, the outlet water temperature and the outlet temperature of the cylinder sleeve water of the gas generator.
Specifically, the inlet water temperature is the temperature of cylinder liner water flowing into the absorber, the outlet water temperature is the temperature of cylinder liner water flowing out of the absorber, and the outlet temperature is the temperature of cylinder liner water flowing out of the gas generator. The periodic detection and acquisition are performed once every preset time, and the preset time of the interval between two adjacent acquisitions can be set according to time requirements, for example, the preset time is 1 minute, 2 minutes, 5 minutes, and the like. It can be understood that, in order to ensure the stable operation of the gas generator, the inlet water temperature, the outlet water temperature and the outlet temperature of the cylinder liner water of the gas generator of the primary absorber are obtained at intervals of preset time, and the opening degree of the first three-way valve and/or the second three-way valve is adjusted based on the inlet water temperature, the outlet water temperature and the outlet temperature of the cylinder liner water of the gas generator of the absorber, so as to ensure that the outlet temperature of the cylinder liner water of the gas generator is kept at the preset target temperature.
S20, when the inlet water temperature and the outlet water temperature meet a first preset condition and the outlet temperature meets a second preset condition; the first opening of the first three-way valve is adjusted to zero and the outlet temperature is compared with a first temperature threshold.
Specifically, the first three-way valve is arranged on a connecting pipeline between a cylinder liner water outlet of the gas generator and an inlet of the absorber and is communicated with a connecting pipeline between the cylinder liner water outlet of the gas generator and an inlet of the heat exchanger, so that the flow rate of cylinder liner water of the gas generator flowing into the heat exchanger and the absorber is controlled through the first three-way valve. Wherein, the first aperture of the first three-way valve is used for controlling the cylinder liner water flow rate between the cylinder liner water outlet of the gas generator and the inlet of the heat exchanger, in other words, the first aperture is used for controlling the cylinder liner water flow rate into the heat exchanger.
The first preset condition and the second preset condition are preset and are used for detecting whether the refrigerating capacity of the absorber can meet the heat exchange requirement of the cylinder liner water of the gas generator or not, and when the absorber is started in the initial stage (namely, the first preset condition or the second preset condition is not met), the cylinder liner water passing through the absorber does not exchange heat, so that the cylinder liner water at the outlet of the gas generator enters the heat exchanger through the first three-way valve to exchange heat and cool and then returns to the gas generator; when the absorber is started and has cylinder liner water cooling capacity (namely, the first preset condition and the second preset condition are simultaneously met), cylinder liner water from the outlet of the gas engine is directly sent into the absorber through the first three-way valve and returns to the gas generator through the second three-way valve after heat exchange of the absorber. Thus, when the inlet water temperature and the outlet water temperature meet a first preset condition and the outlet temperature meets a second preset condition; the first opening of the first three-way valve is adjusted to zero, so that cylinder liner water at the outlet of the gas engine is directly sent into the absorber through the first three-way valve and does not flow into the heat exchanger.
In an implementation manner of this embodiment, the first temperature threshold is preset, and is used to determine whether the basis of the second opening of the second three-way valve needs to be reduced. In an exemplary implementation manner, the first temperature threshold is 80 ℃, and the outlet temperature of the cylinder liner water can reach a preset target temperature quickly by adopting the temperature as the first temperature threshold, wherein the preset target temperature is larger than the first temperature threshold. In practical application, the inlet temperature of the cylinder liner water of the gas generator is kept at 85 ℃, the outlet temperature is kept at 90 ℃, namely the preset target temperature is 90 ℃, and the cylinder liner water absorbs heat generated by the gas generator in the engine, so that the temperature of the cylinder liner water is increased from 85 ℃ to 90 ℃; when the inlet temperature is less than 85 ℃, the outlet temperature can deviate from a preset target temperature, so that the stable operation of the gas generator can be influenced, therefore, the embodiment sets the first temperature threshold to 80 ℃, when the outlet temperature is less than 80 ℃, the inlet temperature cannot reach 75 ℃, the fact that the cylinder liner water flowing into the gas generator cannot enable the preset target temperature through absorbing heat of the gas generator is indicated, the flow of the cylinder liner water flowing into the absorber is too large, and therefore the second opening of the second three-way valve is required to be adjusted at the moment, the flow rate of the cylinder liner water flowing into the absorber is adjusted, the temperature of the cylinder liner water flowing back into the gas generator is improved, and the outlet temperature of the gas generator can be increased to the preset target temperature. Meanwhile, the first temperature threshold is set to 80 ℃, so that the excessive flow of cylinder liner water of the absorber can be rapidly determined, and further the second opening of the second three-way valve is timely adjusted, so that the timeliness of cylinder liner water temperature control of the gas generator is improved.
The first preset condition is that the temperature difference between the water inlet temperature and the water outlet temperature is larger than a preset temperature difference threshold value, and the water outlet temperature is smaller than a third temperature threshold value; the second preset condition is that the outlet temperature is less than a fourth temperature threshold. The preset temperature difference threshold, the third temperature threshold and the fourth temperature threshold are the basis for judging whether the refrigerating capacity of the absorber can meet the heat exchange requirement of cylinder liner water of the gas generator, and when the temperature difference between the inlet water temperature and the outlet water temperature is greater than the preset temperature difference threshold and the outlet temperature is less than the fourth temperature threshold, the control of the cylinder liner water can be performed only through the water absorber. In one exemplary implementation, the preset temperature difference threshold may be 20 ℃, the third temperature threshold may be 50 ℃, and the fourth temperature threshold may be 95 ℃.
And S30, if the outlet temperature is smaller than a first temperature threshold value, reducing the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and a preset target temperature.
Specifically, the second opening is used for controlling cylinder liner water flow of cylinder liner water flowing out of a cylinder liner water outlet of the gas generator to directly flow back to a cylinder liner water inlet of the gas generator. That is, the second opening is used to control the cylinder liner water flow directly flowing back to the inlet of the gas generator, thereby controlling the cylinder liner water flow flowing into the absorber, because the second three-way valve is arranged on the connecting pipeline between the cylinder liner water inlet of the gas generator and the outlet of the absorber and is communicated with the connecting pipeline between the cylinder liner water outlet of the gas generator and the inlet of the absorber, so as to control the flow rate of the cylinder liner water flowing into the absorber through the second three-way valve, when the second opening of the second three-way valve is reduced, the third opening of the opening communicated with the connecting pipeline between the cylinder liner water outlet of the gas generator and the inlet of the absorber of the second three-way valve is increased, so that the flow rate of the cylinder liner water flowing out through the outlet of the gas generator directly flows back to the inlet of the gas generator is increased, and the temperature of the cylinder liner water flowing out through the outlet of the gas generator is higher than the temperature of the cylinder liner water flowing back to the absorber, so that the outlet temperature of the cylinder liner water of the gas generator can be increased, and the outlet temperature of the cylinder liner water of the gas generator can be increased, so that the outlet temperature of the cylinder liner water of the gas generator reaches the preset target temperature.
In one implementation manner of this embodiment, the reducing the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature, and the preset target temperature specifically includes: the second opening degree of the second three-way valve is adjusted to the current opening degree-a second adjustment coefficient (preset target temperature-outlet temperature). The current opening of the second three-way valve is the opening of the second three-way valve when the outlet temperature is obtained, the preset target temperature is preset, the second adjustment coefficient is preset, the preset target temperature can be 90 ℃, the second adjustment coefficient is 0.5, and correspondingly, the adjusted second opening can be=current opening-0.5 (90 ℃ to outlet temperature).
In one implementation of this embodiment, the method further includes:
if the outlet temperature is greater than or equal to a first temperature threshold, comparing the outlet temperature with a second temperature threshold;
when the outlet temperature is smaller than a second temperature threshold value, adjusting the second opening of the second three-way valve according to the first target opening, the outlet temperature and the preset target temperature;
and when the outlet temperature is greater than or equal to a second temperature threshold, adjusting the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and a preset target temperature.
Specifically, the second temperature threshold is greater than the first temperature threshold, and the second temperature threshold is used for controlling to increase the second opening of the second three-way valve or adjusting the second opening based on a preset first target opening so that the second opening reaches the first target opening. In one typical implementation, the second temperature threshold is 93 ℃.
Further, the adjusting the second opening of the second three-way valve according to the first target opening, the outlet temperature and the preset target temperature specifically includes: and adjusting the second opening of the second three-way valve to be a target opening-a first adjustment coefficient (preset target temperature-outlet temperature), wherein the first target opening is 38, the preset target temperature can be 90 ℃, the first adjustment coefficient is 0.6, and correspondingly, the adjusted second opening can be=38-0.6 (90 ℃ to outlet temperature). In addition, the step of adjusting the second opening of the second three-way valve according to the current opening, the outlet temperature and the preset target temperature of the second three-way valve specifically comprises the following steps: and adjusting the second opening of the second three-way valve to be the current opening+a second adjustment coefficient (preset target temperature-outlet temperature), wherein the current opening of the second three-way valve is the opening of the second three-way valve when the outlet temperature is obtained, the target temperature can be set to be 90 ℃, the second adjustment coefficient is 0.5, and correspondingly, the adjusted second opening can be=the current opening+0.5 (90-outlet temperature).
In one implementation of this embodiment, the method further includes:
when the inlet water temperature and the outlet water temperature meet a first preset condition or the outlet temperature meets a second preset condition, respectively comparing the outlet temperature with a first temperature threshold value and a second temperature threshold value, wherein the first temperature threshold value is smaller than the second temperature threshold value;
if the outlet temperature is smaller than a first temperature threshold value, reducing the first opening of the first three-way valve according to the current opening of the first three-way valve, the outlet temperature and a preset target temperature;
if the outlet temperature is greater than or equal to a first temperature threshold and is smaller than a second temperature threshold, adjusting the first opening of the first three-way valve according to a second target opening, the outlet temperature and a preset target temperature;
and when the outlet temperature is greater than or equal to a second temperature threshold value, the first opening of the first three-way valve is regulated according to the current opening of the first three-way valve, the outlet temperature and a preset target temperature.
Specifically, when the inlet water temperature and the outlet water temperature meet a first preset condition, or the outlet water temperature meets a second preset condition, it is indicated that the absorber cannot provide the cooling capacity required by the gas generator, and the heat exchanger is required to absorb the heat carried by the cylinder liner water of the gas generator at this time, so that when the inlet water temperature and the outlet water temperature meet the first preset condition, or the outlet water temperature meets the second preset condition, the cylinder liner water temperature of the gas generator is controlled by adjusting the first opening of the first three-way valve, and at this time, the second opening of the second three-way valve can be set to a fixed value. In addition, when the first opening of the first three-way valve is adjusted, the adjusting process is the same as the second opening adjusting process of the second three-way valve, and details thereof are omitted herein, and the adjusting process of the second opening of the second three-way valve can be specifically performed. Of course, it should be noted that the second target opening degree in the adjustment process of the first opening degree of the first three-way valve is different from the first target opening degree in the adjustment process of the second opening degree of the second three-way valve, wherein the second target opening degree is 42, the first target opening degree is 38, and the adjustment coefficient for increasing the first opening degree of the first three-way valve is 5.
In summary, the present embodiment provides a method for controlling cylinder liner water temperature of a gas generator and a related device, where the method includes periodically obtaining inlet water temperature and outlet water temperature of hot water of an absorber and outlet temperature of cylinder liner water of the gas generator; when the water inlet temperature and the water outlet temperature meet the first preset condition and the outlet temperature meets the second preset condition; adjusting the first opening of the first three-way valve to zero, and comparing the outlet temperature with a first temperature threshold; and if the outlet temperature is smaller than the first temperature threshold, reducing the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and the preset target temperature. According to the method, the opening of the first three-way valve and the opening of the second three-way valve are adjusted according to the inlet water temperature and the outlet water temperature of hot water of the absorber and the outlet temperature of cylinder liner water of the gas generator periodically so as to control the heat exchange amount of the cylinder liner water, so that the outlet temperature is controlled to be the preset target temperature, and the stable operation of the gas generator is ensured.
Based on the above method for controlling the cylinder liner water temperature of the gas generator, this embodiment provides a device for controlling the cylinder liner water temperature of the gas generator, as shown in fig. 4, the device includes:
the acquisition module 100 is used for periodically acquiring the inlet water temperature and outlet water temperature of hot water of the absorber and the outlet temperature of cylinder liner water of the gas generator;
the comparison module 200 is configured to, when the inlet water temperature and the outlet water temperature meet a first preset condition, and the outlet temperature meets a second preset condition; the method comprises the steps of adjusting a first opening of a first three-way valve to be zero, and comparing the outlet temperature with a first temperature threshold value, wherein the first opening is used for controlling cylinder liner water flow between a cylinder liner water outlet of a gas generator and a heat exchanger inlet;
and the adjusting module 300 is configured to adjust the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and the preset target temperature when the outlet temperature is less than the first temperature threshold, where the second opening is used to control the cylinder liner water flow of the cylinder liner water flowing out from the cylinder liner water outlet of the gas generator to directly flow back to the cylinder liner water inlet of the gas generator.
Based on the above-described gas generator cylinder liner water temperature control method, the present embodiment provides a computer-readable storage medium storing one or more programs executable by one or more processors to implement the steps in the gas generator cylinder liner water temperature control method as described in the above-described embodiments.
Based on the above method for controlling the water temperature of the cylinder liner of the gas generator, the present application also provides a terminal device, as shown in fig. 5, which includes at least one processor (processor) 20; a display screen 21; and a memory (memory) 22, which may also include a communication interface (Communications Interface) 23 and a bus 24. Wherein the processor 20, the display 21, the memory 22 and the communication interface 23 may communicate with each other via a bus 24. The display screen 21 is configured to display a user guidance interface preset in the initial setting mode. The communication interface 23 may transmit information. The processor 20 may invoke logic instructions in the memory 22 to perform the methods of the embodiments described above.
Further, the logic instructions in the memory 22 described above may be implemented in the form of software functional units and stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 22, as a computer readable storage medium, may be configured to store a software program, a computer executable program, such as program instructions or modules corresponding to the methods in the embodiments of the present disclosure. The processor 20 performs functional applications and data processing, i.e. implements the methods of the embodiments described above, by running software programs, instructions or modules stored in the memory 22.
The memory 22 may include a storage program area that may store an operating system, at least one application program required for functions, and a storage data area; the storage data area may store data created according to the use of the terminal device, etc. In addition, the memory 22 may include high-speed random access memory, and may also include nonvolatile memory. For example, a plurality of media capable of storing program codes such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or a transitory storage medium may be used.
In addition, the specific processes that the storage medium and the plurality of instruction processors in the terminal device load and execute are described in detail in the above method, and are not stated here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. A method for controlling water temperature of a cylinder liner of a gas generator, the method comprising:
periodically acquiring the inlet water temperature, the outlet water temperature and the outlet temperature of cylinder sleeve water of the gas generator of hot water of the absorber;
when the inlet water temperature and the outlet water temperature meet a first preset condition and the outlet temperature meets a second preset condition; the method comprises the steps of adjusting a first opening of a first three-way valve to be zero, and comparing the outlet temperature with a first temperature threshold, wherein the first opening is used for controlling cylinder liner water flow between a cylinder liner water outlet of a gas generator and a heat exchanger inlet, and the first preset condition and the second preset condition are used for detecting whether the refrigerating capacity of an absorber can meet the basis of cylinder liner water heat exchange requirements of the gas generator;
and if the outlet temperature is smaller than the first temperature threshold, reducing the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and the preset target temperature, wherein the second opening is used for controlling the cylinder liner water flow of the cylinder liner water flowing out of the cylinder liner water outlet of the gas generator to directly flow back to the cylinder liner water inlet of the gas generator.
2. The method of controlling cylinder liner water temperature of a gas generator of claim 1, further comprising:
if the outlet temperature is greater than or equal to a first temperature threshold, comparing the outlet temperature with a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold;
when the outlet temperature is smaller than a second temperature threshold value, adjusting the second opening of the second three-way valve according to the first target opening, the outlet temperature and the preset target temperature;
and when the outlet temperature is greater than or equal to a second temperature threshold, adjusting the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and a preset target temperature.
3. The method for controlling the cylinder liner water temperature of the gas generator according to claim 2, wherein the adjusting the second opening of the second three-way valve according to the first target opening, the outlet temperature and the preset target temperature is specifically:
the second opening degree of the second three-way valve is adjusted to a target opening degree-first adjustment coefficient (preset target temperature-outlet temperature).
4. The method for controlling the cylinder liner water temperature of the gas generator according to claim 2, wherein the step of adjusting the second opening of the second three-way valve according to the current opening, the outlet temperature and the preset target temperature is specifically:
the second opening degree of the second three-way valve is adjusted to the current opening degree + a second adjustment coefficient (preset target temperature-outlet temperature).
5. The method for controlling the cylinder liner water temperature of the gas generator according to claim 1, wherein the step of reducing the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and the preset target temperature is specifically:
the second opening degree of the second three-way valve is adjusted to the current opening degree-a second adjustment coefficient (preset target temperature-outlet temperature).
6. The method for controlling cylinder liner water temperature of a gas generator according to any one of claims 1 to 5, further comprising:
when the inlet water temperature and the outlet water temperature meet a first preset condition or the outlet temperature meets a second preset condition, respectively comparing the outlet temperature with a first temperature threshold value and a second temperature threshold value, wherein the first temperature threshold value is smaller than the second temperature threshold value;
if the outlet temperature is smaller than a first temperature threshold value, reducing the first opening of the first three-way valve according to the current opening of the first three-way valve, the outlet temperature and a preset target temperature;
if the outlet temperature is greater than or equal to a first temperature threshold and is smaller than a second temperature threshold, adjusting the first opening of the first three-way valve according to a second target opening, the outlet temperature and a preset target temperature;
and when the outlet temperature is greater than or equal to a second temperature threshold value, the first opening of the first three-way valve is regulated according to the current opening of the first three-way valve, the outlet temperature and a preset target temperature.
7. The method for controlling water temperature in a cylinder liner of a gas generator according to any one of claims 1 to 5, wherein the first preset condition is that a temperature difference between the water inlet temperature and the water outlet temperature is greater than a preset temperature difference threshold, and the water outlet temperature is less than a third temperature threshold; the second preset condition is that the outlet temperature is less than a fourth temperature threshold.
8. The cylinder sleeve water temperature control device of the gas generator is characterized by comprising:
the acquisition module is used for periodically acquiring the inlet water temperature and the outlet water temperature of hot water of the absorber and the outlet temperature of cylinder sleeve water of the gas generator;
the comparison module is used for when the inlet water temperature and the outlet water temperature meet a first preset condition and the outlet temperature meets a second preset condition; the method comprises the steps of adjusting a first opening of a first three-way valve to be zero, and comparing the outlet temperature with a first temperature threshold, wherein the first opening is used for controlling cylinder liner water flow between a cylinder liner water outlet of a gas generator and a heat exchanger inlet, and the first preset condition and the second preset condition are used for detecting whether the refrigerating capacity of an absorber can meet the basis of cylinder liner water heat exchange requirements of the gas generator;
and the adjusting module is used for adjusting the second opening of the second three-way valve according to the current opening of the second three-way valve, the outlet temperature and the preset target temperature when the outlet temperature is smaller than the first temperature threshold value, wherein the second opening is used for controlling the cylinder liner water flow of the cylinder liner water flowing out of the cylinder liner water outlet of the gas generator to directly flow back to the cylinder liner water inlet of the gas generator.
9. A computer readable storage medium storing one or more programs executable by one or more processors to perform the steps in the method of controlling water temperature in a cylinder liner of a gas generator as claimed in any one of claims 1 to 7.
10. A terminal device, comprising: a processor, a memory, and a communication bus; the memory has stored thereon a computer readable program executable by the processor;
the communication bus realizes connection communication between the processor and the memory;
the steps in the method for controlling cylinder liner water temperature of a gas generator according to any one of claims 1-7 are realized when the processor executes the computer readable program.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008057546A (en) * | 1996-06-20 | 2008-03-13 | Waertsilae Schweiz Ag | Cooling mechanism for cylinder jacket of internal combustion engine |
| CN104832289A (en) * | 2015-05-06 | 2015-08-12 | 湖南康拜恩分布式能源科技有限公司 | Combined cooling, heating, and power (CCHP) station system and method of gas turbine and gas internal combustion engine |
| CN105863821A (en) * | 2015-02-06 | 2016-08-17 | 温特图尔汽柴油公司 | Internal combustion engine, method for operating the internal combustion engine, and cylinder, cylinder liner and closing plate for the internal combustion engine |
| CN106401726A (en) * | 2016-11-28 | 2017-02-15 | 新奥泛能网络科技股份有限公司 | Jacket water cooling system of internal combustion engine |
| CN206539408U (en) * | 2017-02-15 | 2017-10-03 | 沁水晋煤瓦斯发电有限公司 | The residual heat utilization device of gas electricity combustion engine jacket water |
| CN108035823A (en) * | 2017-10-24 | 2018-05-15 | 新奥泛能网络科技股份有限公司 | Data center energizes control system and method |
| JP2019011744A (en) * | 2017-06-30 | 2019-01-24 | 株式会社クボタ | Vertical in-line multi-cylinder engine |
| CN109488476A (en) * | 2018-12-27 | 2019-03-19 | 潍柴动力股份有限公司 | Engine and its cylinder block |
| CN112449549A (en) * | 2019-09-02 | 2021-03-05 | 北京金风科创风电设备有限公司 | Cooling circulation device, control method and converter |
| CN113638814A (en) * | 2021-09-07 | 2021-11-12 | 浙江临东压力容器制造有限公司 | Water temperature adjusting device of internal combustion engine cylinder sleeve |
| CN114017929A (en) * | 2021-10-29 | 2022-02-08 | 广东万和新电气股份有限公司 | Control method of gas water heater, device and storage medium |
-
2022
- 2022-03-03 CN CN202210210848.1A patent/CN114790951B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008057546A (en) * | 1996-06-20 | 2008-03-13 | Waertsilae Schweiz Ag | Cooling mechanism for cylinder jacket of internal combustion engine |
| CN105863821A (en) * | 2015-02-06 | 2016-08-17 | 温特图尔汽柴油公司 | Internal combustion engine, method for operating the internal combustion engine, and cylinder, cylinder liner and closing plate for the internal combustion engine |
| CN104832289A (en) * | 2015-05-06 | 2015-08-12 | 湖南康拜恩分布式能源科技有限公司 | Combined cooling, heating, and power (CCHP) station system and method of gas turbine and gas internal combustion engine |
| CN106401726A (en) * | 2016-11-28 | 2017-02-15 | 新奥泛能网络科技股份有限公司 | Jacket water cooling system of internal combustion engine |
| CN206539408U (en) * | 2017-02-15 | 2017-10-03 | 沁水晋煤瓦斯发电有限公司 | The residual heat utilization device of gas electricity combustion engine jacket water |
| JP2019011744A (en) * | 2017-06-30 | 2019-01-24 | 株式会社クボタ | Vertical in-line multi-cylinder engine |
| CN108035823A (en) * | 2017-10-24 | 2018-05-15 | 新奥泛能网络科技股份有限公司 | Data center energizes control system and method |
| CN109488476A (en) * | 2018-12-27 | 2019-03-19 | 潍柴动力股份有限公司 | Engine and its cylinder block |
| CN112449549A (en) * | 2019-09-02 | 2021-03-05 | 北京金风科创风电设备有限公司 | Cooling circulation device, control method and converter |
| CN113638814A (en) * | 2021-09-07 | 2021-11-12 | 浙江临东压力容器制造有限公司 | Water temperature adjusting device of internal combustion engine cylinder sleeve |
| CN114017929A (en) * | 2021-10-29 | 2022-02-08 | 广东万和新电气股份有限公司 | Control method of gas water heater, device and storage medium |
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