CN114776487A - Detection method for gas generator and related device - Google Patents

Abstract

The present application discloses a detection method for a gas generator and a related device. The method includes periodically collecting the intake pressure at the intake end of the gas generator, and obtaining a reference pressure corresponding to the intake pressure; The pressure change rate corresponding to the gas generator is calculated from the intake pressure and the reference pressure; when the pressure change rate is less than or equal to a preset threshold, it is prompted that the connection between the intake end of the gas generator and the intake pipe falls off. In the present application, the reason for the decrease in the intake pressure of the intake end of the gas generator can be determined by detecting the pressure change rate of the intake end of the gas generator, so as to quickly detect whether the connection between the intake end and the intake end of the gas generator falls off, so that the Guaranteed to quickly locate the reason why the gas generator stops working.

Description

A detection method and related device for a gas generator

technical field

The present application relates to the technical field of gas-fired power generation, and in particular, to a detection method and a related device for a gas-fired power generator.

Background technique

The intake end of the existing gas generator is generally connected to the intake end through a silicone rubber tube. During the operation of the gas generator, due to the vibration generated during the operation of the gas generator, the gas and air compressed by the compressor are separated. Changes in the temperature of the mixture and the pressure of the mixture put the silicone rubber tube at risk of falling off, causing the generator to shut down. In addition, stopping the gas during operation will also cause the generator to stop. In order to determine whether the generator shutdown is caused by falling off or gas outage, the current method is to go to the generator site to check.

Therefore, the existing technology still needs to be improved and improved.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present application is to provide a detection method and a related device for a gas generator in view of the deficiencies of the prior art.

In order to solve the above technical problems, a first aspect of the embodiments of the present application provides a detection method for a gas generator, the method comprising:

Collecting the intake pressure at the intake end of the gas generator at intervals, and obtaining the reference pressure corresponding to the intake pressure;

calculating a pressure change rate corresponding to the gas generator based on the intake air pressure and the reference pressure;

When the pressure change rate is less than or equal to a preset threshold, it is determined that the running gas generator is shut down because the connection between the intake end and the intake pipe falls off, and the auxiliary part of the gas generator is controlled to stop working.

The detection method for a gas generator, wherein a gas flow meter is provided at the intake end of the gas generator, and the interval collection of the intake pressure at the intake end of the gas generator is specifically:

The pressure value collected by the gas flow meter is read at intervals to obtain the intake pressure of the intake end of the gas generator.

The detection method for a gas generator, wherein the reference pressure and the intake pressure are acquired at two adjacent acquisition times, and the second acquisition time corresponding to the reference pressure is located at the before the second collection time corresponding to the intake pressure.

In the detection method for a gas generator, wherein the calculating the pressure change rate corresponding to the gas generator based on the intake pressure and the reference pressure specifically includes:

calculating the pressure difference between the reference pressure and the intake pressure;

The ratio of the pressure difference to the reference pressure is calculated to obtain the corresponding pressure change rate of the gas generator.

The detection method for a gas generator, wherein the method further comprises:

When the pressure change rate is greater than a preset threshold, it is determined that the gas generator is shut down due to gas outage, and the auxiliary part of the gas generator is controlled to stop working according to normal procedures.

In the detection method for a gas generator, the preset threshold is 0.004.

A second aspect of the embodiments of the present application provides a detection device for a gas generator, and the detection device includes:

a collection module, used for intermittently collecting the intake pressure at the intake end of the gas generator, and obtaining a reference pressure corresponding to the intake pressure;

a calculation module, configured to calculate the pressure change rate corresponding to the gas generator based on the intake pressure and the reference pressure;

an execution module, configured to determine that the shutdown of the gas generator is caused by the connection between the intake end and the intake pipe falling off when the pressure change rate is less than or equal to a preset threshold, and control the auxiliary part of the gas generator stop working.

A third aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to Steps in the detection method for a gas generator as described in any of the above are implemented.

A fourth aspect of the embodiments of the present application provides a terminal device, which includes: a processor, a memory, and a communication bus; the memory stores a computer-readable program executable by the processor;

The communication bus implements connection communication between the processor and the memory;

When the processor executes the computer-readable program, the steps in any of the above-described detection methods for gas generators are implemented.

Beneficial effects: Compared with the prior art, the present application provides a detection method for a gas generator and a related device. The method includes intermittently collecting the intake pressure at the intake end of the gas generator, and obtaining the intake pressure. The reference pressure corresponding to the gas pressure; the pressure change rate corresponding to the gas generator is calculated based on the intake pressure and the reference pressure; when the pressure change rate is less than or equal to a preset threshold, the gas generator is prompted for intake air The connection between the end and the intake pipe falls off, and the auxiliary part of the gas generator is controlled to stop working. In the present application, the reason for the shutdown caused by the decrease of the intake pressure of the intake end of the gas generator is determined by detecting the pressure change rate of the intake end of the gas generator, and then it can be quickly detected and determined whether the connection between the intake end and the intake end of the gas generator falls off. , so that the normal stop of the auxiliary part of the gas generator can be controlled.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without conforming to the creative work.

FIG. 1 is a flowchart of a detection method for a gas generator provided by the present application.

Figure 2 is a schematic diagram of the structure of the gas power generation system.

FIG. 3 is a schematic structural diagram of a detection device for a gas generator provided by the application

FIG. 4 is a schematic structural diagram of a terminal device provided by the present application.

Detailed ways

The present application provides a detection method and related device for a gas-fired generator. In order to make the purpose, technical solutions and effects of the present application clearer and clearer, the present application will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

It will be understood by those skilled in the art that the singular forms "a", "an", "the" and "the" as used herein can include the plural forms as well, unless expressly stated otherwise. It should be further understood that the word "comprising" used in the specification of this application refers to the presence of stated features, integers, steps, operations, elements and/or components, but does 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 we refer to an element 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. Furthermore, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" 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, unless otherwise defined, 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. It should also be understood that terms, such as those defined in a general dictionary, should be understood to have meanings consistent with their meanings in the context of the prior art and, unless specifically defined as herein, should not be interpreted in idealistic or overly formal meaning to explain.

It should be understood that the sequence numbers and sizes of the steps in this embodiment do not imply a sequence of execution, and the execution sequence of each process is determined by its functions and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

The inventor found through research that the intake end of the existing gas generator is generally connected to the intake end through a silicone rubber tube. Changes in the temperature of the mixture of gas and air and the pressure of the mixture make the silicone rubber tube at risk of falling off, thereby affecting the operation safety of the gas generator.

In order to solve the above problems, in the embodiment of the present application, the intake pressure at the intake end of the gas generator is collected at intervals, and the reference pressure corresponding to the intake pressure is obtained; the gas is calculated based on the intake pressure and the reference pressure. The pressure change rate corresponding to the generator; when the pressure change rate is less than or equal to the preset threshold, it is prompted that the connection between the gas generator inlet end and the air inlet pipe is disconnected. In the present application, the reason for the decrease in the intake pressure of the intake end of the gas generator can be determined by detecting the pressure change rate of the intake end of the gas generator, so as to quickly detect whether the connection between the intake end and the intake end of the gas generator falls off, so that the Ensure the safe operation of gas generators.

The content of the application will be further described below through the description of the embodiments in conjunction with the accompanying drawings.

This embodiment provides a detection method for a gas generator, as shown in FIG. 1 , the method includes:

S10. Collect the intake pressure at the intake end of the gas generator at intervals, and obtain a reference pressure corresponding to the intake pressure.

Specifically, the intake pressure is the gas pressure at the intake end of the gas generator, that is, the intake pressure is the gas pressure of the gas flowing into the gas generator. The interval refers to collecting the intake pressure at the intake end of the gas generator every preset time, or collecting the intake pressure at the intake end of the gas generator according to a preset interval time sequence. For example, the intake pressure at the intake end of the gas generator is collected every 3 seconds, or the intake pressure at the intake end of the gas generator is collected at changing intervals of 3 seconds, 4 seconds, and 5 seconds.

In an implementation manner of the present implementation, the gas generator can be used in the gas power generation system as shown in FIG. 2 , and the connection between the inlet end and the inlet end of the gas generator adopts a silicone rubber pipe to connect the gas through the gas passing through the gas generator. After the gas flow meter, it is mixed with air after passing through the solenoid valve, and then enters the compressor for compression. The compressed mixture enters the gas generator and is cooled by the medium cold water before entering the cylinder. Wherein, the gas flow meter can detect the temperature, pressure and flow of the gas. Therefore, the intake pressure can be obtained by reading the pressure value collected by the gas flow meter, that is to say, a gas flow meter is provided at the intake end of the gas generator, and the gas generator is collected at intervals. The intake pressure at the intake end of the gas generator is specifically: reading the pressure value of the gas collected by the gas flow meter at intervals to obtain the intake pressure of the intake end of the gas generator.

The reference pressure may be a preset standard pressure, or may be the intake pressure at the intake end of the gas generator collected before the intake pressure. In an implementation manner, the reference pressure and the intake pressure are acquired at two adjacent acquisition times, and the second acquisition time corresponding to the reference pressure is located at the second acquisition time corresponding to the intake pressure. before the acquisition time. It can be understood that the reference pressure and the intake air pressure are collected in two adjacent collections, and the second collection time corresponding to the reference pressure is located before the second collection time corresponding to the intake pressure. For example, the intake air pressure is collected at the fourth collection, and the reference pressure is collected at the third collection.

In addition, when the reference pressure and the intake pressure are acquired at two adjacent acquisition times, after acquiring the first acquisition time corresponding to the intake pressure and the second acquisition time corresponding to the reference pressure, the The stored data sets of the reference pressure and the second collection time are deleted, so that the occupation of the storage space can be reduced on the basis of ensuring that the reference pressure and the second collection time corresponding to the reference pressure can be obtained.

S20. Calculate a pressure change rate corresponding to the gas generator based on the intake pressure and the reference pressure.

Specifically, the pressure change rate is used to reflect the proportional relationship between the pressure change value and the reference pressure, and the pressure change rate is used to determine the change cause of the pressure change at the intake end of the gas generator, so as to respond to the gas generator. . In an implementation of this embodiment, the calculating the pressure change rate corresponding to the gas generator based on the intake pressure and the reference pressure specifically includes: calculating a pressure difference between the reference pressure and the intake pressure; The ratio of the pressure difference to the reference pressure is calculated to obtain the corresponding pressure change rate of the gas generator. That is to say, the calculation formula of the pressure change rate can be: (P _t1 -P _t2 )/P _t1 , where P _t1 is the reference pressure, P _t2 is the intake pressure, and t ₁ is the second collection time of the reference pressure, t ₂ is the first acquisition time of the intake pressure.

S30. When the pressure change rate is less than or equal to a preset threshold, prompting that the connection between the intake end of the gas generator and the intake pipe falls off.

Specifically, the preset threshold value is preset, which is the basis for determining the change in air pressure caused by the air pressure. When the pressure change rate is less than or equal to the preset threshold value, it means that the air pressure change is caused by the intake end of the gas generator. It is caused by the falling off of the connection with the intake pipe. On the contrary, when the pressure change rate is greater than the preset threshold, it means that the pressure change is caused by the gas stop of the gas generator. Based on this, after the pressure change rate is obtained, the pressure change rate is compared with a preset threshold to determine the cause of the air pressure change, and the gas generator is controlled to perform corresponding operations according to the cause of the air pressure change. In a specific implementation manner, the value range of the preset threshold value may be 0.003-0.005, for example, the preset threshold value is 0.004. Of course, in practical applications, since the air pressure at the gas supply end of the gas generator will change, it may happen that the intake pressure P _t2 is greater than the reference pressure P _t1 , so that the pressure change rate is negative, and when the pressure change rate is negative When it is determined that the gas generator is in a normal gas supply state, keep the gas generator working normally.

In one implementation, when the pressure change rate is less than or equal to a preset threshold, it indicates that the change in air pressure is caused by the disconnection of the connection between the intake end of the gas generator and the intake pipe, and in this case, the gas generator is at risk of running , so that the gas generator can be controlled to stop working; and when the pressure change rate is greater than the preset threshold, it means that the gas pressure change is caused by the gas generator shutting down. At this time, the gas generator is in safe operation, so it can be controlled The gas generator works according to the normal procedure.

For example: Assume that time _t1 and time _t2 are two continuous collection times, the intake pressure collected at time _t1 is the reference pressure P _t1 , and the intake pressure collected at time _t2 is the current intake pressure P _t2 ; Then the pressure change rate is (P _t1 -P _t2 )/P _t1 , and the preset chamber threshold is 0.4%, then if (P _t1 -P _t2 )/P _t1 >0.4%, it means that the air pressure drop is caused by the gas stop, Control the gas generator to work according to the normal working procedure, otherwise, if (P _t1 -P _t2 )/P _t1 <= 0.4%, and (P _t1 -P _t2 )/P _t1 >0, otherwise due to the gas generator inlet The air pressure drop caused by the falling off of the connection with the intake pipe will control the gas generator to stop.

To sum up, this embodiment provides a detection method for a gas generator, the method includes collecting the intake pressure at the intake end of the gas generator at intervals, and obtaining a reference pressure corresponding to the intake pressure; Calculate the pressure change rate corresponding to the gas generator based on the intake pressure and the reference pressure; when the pressure change rate is less than or equal to a preset threshold, prompt the connection between the intake end of the gas generator and the intake pipe fall off. In the present application, the reason for the decrease in the intake pressure of the intake end of the gas generator can be determined by detecting the pressure change rate of the intake end of the gas generator, so as to quickly detect whether the connection between the intake end and the intake end of the gas generator falls off, so that the Ensure the safe operation of gas generators.

Based on the above detection method for a gas generator, the present embodiment provides a detection device for a gas generator, as shown in FIG. 3 , the detection device includes:

The collection module 100 is used to collect the intake air pressure at the intake end of the gas generator at intervals, and obtain the reference pressure corresponding to the intake air pressure;

a calculation module 200, configured to calculate a pressure change rate corresponding to the gas generator based on the intake pressure and the reference pressure;

The execution module 300 is configured to prompt that the connection between the intake end of the gas generator and the intake pipe is disconnected when the pressure change rate is less than or equal to a preset threshold.

Based on the above detection method for a gas generator, this embodiment provides a computer-readable storage medium, where the computer-readable storage medium stores one or more programs, and the one or more programs can be stored by one or more A plurality of processors are executed to implement the steps in the detection method for a gas generator as described in the above embodiments.

Based on the above detection method for a gas generator, the present application also provides a terminal device, as shown in FIG. 4 , which includes at least one processor 20 ; a display screen 21 ; and a memory 22 , and also A Communications Interface 23 and a bus 24 may be included. The processor 20 , the display screen 21 , the memory 22 and the communication interface 23 can communicate with each other through the bus 24 . The display screen 21 is set to display a user guide interface preset in the initial setting mode. The communication interface 23 can transmit information. The processor 20 may invoke logic instructions in the memory 22 to perform the methods in the above-described embodiments.

In addition, the above-mentioned logic instructions in the memory 22 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

As a computer-readable storage medium, the memory 22 may be configured to store software programs and computer-executable programs, such as program instructions or modules corresponding to the methods in the embodiments of the present disclosure. The processor 20 executes functional applications and data processing by running the software programs, instructions or modules stored in the memory 22, ie, implements the methods in the above embodiments.

The memory 22 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Additionally, memory 22 may include high-speed random access memory, and may also include non-volatile memory. For example, U disk, removable hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes, or temporary state storage medium.

In addition, the specific process of loading and executing the above-mentioned storage medium and the multiple instruction processor in the terminal device has been described in detail in the above-mentioned method, and will not be described one by one here.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions recorded in the foregoing embodiments, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (9)

1. A detection method for a gas generator, wherein the method comprises: Collecting the intake pressure at the intake end of the gas generator at intervals, and obtaining the reference pressure corresponding to the intake pressure; calculating a pressure change rate corresponding to the gas generator based on the intake air pressure and the reference pressure; When the pressure change rate is less than or equal to a preset threshold, it is prompted that the connection between the intake end of the gas generator and the intake pipe falls off. 2 . The detection method for a gas generator according to claim 1 , wherein a gas flow meter is provided at the intake end of the gas generator, and the gas flow meter of the intake end of the gas generator is collected at intervals. 3 . The air pressure is specifically: The pressure value collected by the gas flow meter is read at intervals to obtain the intake pressure of the intake end of the gas generator. 3 . The detection method for a gas-fired generator according to claim 1 , wherein the reference pressure and the intake air pressure are collected at two adjacent collection times, and the reference pressure The corresponding second collection time is before the second collection time corresponding to the intake pressure. 4 . The detection method for a gas generator according to claim 1 , wherein the calculating the pressure change rate corresponding to the gas generator based on the intake pressure and the reference pressure specifically comprises: 5 . calculating the pressure difference between the reference pressure and the intake pressure; The ratio of the pressure difference to the reference pressure is calculated to obtain the corresponding pressure change rate of the gas generator. 5. The detection method for a gas generator according to claim 1, wherein the method further comprises: When the pressure change rate is greater than a preset threshold, the gas generator is prompted to stop gas. 6. The detection method for a gas generator according to claim 1 or 5, wherein the preset threshold is 0.004. 7. A detection device for a gas generator, wherein the detection device comprises: a collection module, used for intermittently collecting the intake pressure at the intake end of the gas generator, and obtaining a reference pressure corresponding to the intake pressure; a calculation module, configured to calculate the pressure change rate corresponding to the gas generator based on the intake pressure and the reference pressure; The execution module is used to determine that the generator shutdown is caused by the disconnection of the connection between the intake end of the gas generator and the intake pipe when the pressure change rate is less than or equal to a preset threshold, and control the other parts of the gas generator Parts stopped working. 8. A computer-readable storage medium, wherein the computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to realize the Steps in the detection method for a gas generator according to any one of claims 1-6. 9. A terminal device, comprising: a processor, a memory and a communication bus; a computer-readable program executable by the processor is stored on the memory; The communication bus implements connection communication between the processor and the memory; When the processor executes the computer-readable program, the steps in the detection method for a gas generator according to any one of claims 1-6 are implemented.

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