CN112682570A - Gas pipeline overhauling and rush-repairing valve - Google Patents

Gas pipeline overhauling and rush-repairing valve Download PDF

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Publication number
CN112682570A
CN112682570A CN202011603991.4A CN202011603991A CN112682570A CN 112682570 A CN112682570 A CN 112682570A CN 202011603991 A CN202011603991 A CN 202011603991A CN 112682570 A CN112682570 A CN 112682570A
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pressure
valve
processing unit
central processing
gas pipeline
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CN202011603991.4A
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李佩庭
潘诗大
张键
邵海丽
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Nantong Baodeli Machinery Manufacturing Co ltd
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Nantong Baodeli Machinery Manufacturing Co ltd
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Priority to CN202011603991.4A priority Critical patent/CN112682570A/en
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Abstract

The invention relates to a gas pipeline overhauling and rush-repairing valve which comprises a pipeline (1), a connecting pipe (11) and a valve (4), wherein one side of the pipeline (1) is connected with the connecting pipe (11), a mounting hole (5) is formed below the valve (4) so that the connecting pipe (11) can be inserted into the mounting hole (5), a pressure sensor for detecting the gas pressure in the pipeline (1) is arranged in the mounting hole (5), an outer shell (3) is arranged outside the valve (4), a central processing unit is arranged in the outer shell (3), and the pressure sensor is used for transmitting the detected pressure value to the central processing unit. The invention can realize real-time detection of the gas pipeline, greatly improves the maintenance efficiency and saves the maintenance cost.

Description

Gas pipeline overhauling and rush-repairing valve
Technical Field
The invention relates to the technical field of valves, in particular to a gas pipeline overhauling and rush-repairing valve.
Background
The coal gas leakage accident is a major accident in the steel smelting production, and once the accident occurs, the huge loss of life and property can be caused. Carbon monoxide (CO) is colorless, odorless, and non-irritating gas, has a specific gravity of 0.967, is practically insoluble in water, and is not easily absorbed by activated carbon. When the carbon substance is not completely combusted, CO can be generated, and acute poisoning can be caused if a human body absorbs CO with a high concentration in a short time or the carbon substance absorbs CO with a low concentration for a long time. In the iron and steel smelting company, effective monitoring and alarming equipment is installed to monitor the leakage of the carbon monoxide in real time, and the method is very important for preventing accidents and protecting the safety of lives and properties. The early warning and the little loss further illustrate the necessity of timely warning.
The existing gas pipeline is longer, if the pipeline is longer, the detection is more complex, and the existing detection mode is as follows: foam water is scattered on the pipeline, and when the air leakage position exists, the foam water can be flushed by gas, so that the pipeline is detected from beginning to end in the detection mode, the working efficiency is greatly reduced and the maintenance cost is improved when the pipeline is maintained.
Disclosure of Invention
The invention aims to provide a gas pipeline maintenance and rush-repair valve, wherein a pressure sensor for detecting the gas pressure in a pipeline is arranged in a mounting port, a central processing unit is arranged in an outer shell and is used for transmitting a detected pressure value to the central processing unit, the central processing unit is used for displaying the pressure value on a display module on one hand and transmitting the pressure value to a wireless transmitting module on the other hand, the wireless transmitting module is in data communication with a control terminal and transmits the pressure value to the control terminal, the central processing unit sends positioning to the wireless transmitting module in real time, and the wireless transmitting module transmits the positioning to the control terminal in real time, so that the gas pipeline can be detected in real time, the working efficiency is greatly improved, and the problem in the background technology can be solved.
In order to solve the technical problems, the technical scheme of the gas pipeline overhauling and rush-repair valve provided by the invention is as follows:
the embodiment of the invention discloses a gas pipeline overhauling and rush-repairing valve which comprises a pipeline, a connecting pipe and a valve, wherein one side of the pipeline is connected with the connecting pipe, an installation opening is formed below the valve to enable the connecting pipe to be inserted into the installation opening, a pressure sensor used for detecting the gas pressure in the pipeline is arranged in the installation opening, an outer shell is arranged outside the valve, a central processing unit is arranged in the outer shell, and the pressure sensor is used for transmitting the detected pressure value to the central processing unit.
In any of the above schemes, it is preferred that the gas pipeline overhaul and rush repair valve further comprises a wireless transmitting module and a display module, the wireless transmitting module is arranged in the outer shell, the display module is arranged on one side of the outer shell, the central processing unit is used for displaying the pressure value on the one hand on the display module and transmitting the pressure value to the wireless transmitting module on the other hand, the wireless transmitting module is in data communication with the control terminal and transmits the pressure value to the control terminal.
In any of the above schemes, preferably, a positioning module is arranged in the central processing unit, and the central processing unit sends the positioning to the wireless transmitting module in real time, and the wireless transmitting module transmits the positioning to the control terminal in real time.
In any of the above schemes, preferably, the pressure sensor has a built-in 600MHz high performance Blackfin core, the peak computing capability can reach 2.4GMAC/s, the pressure signal antenna is transmitted to the central processing unit, or the modulated noise signal is directly input to the central processing unit after passing through the attenuator.
In any of the above schemes, preferably, the autocorrelation control state equation of the pressure sensing data in the pressure sensor is:
Figure BDA0002871491160000031
wherein L isqIndicating the rate of change of the line pressure, UJRepresenting integration time, UEIs differential time, the pipeline pressure control equation has the formula:
Δυ(l)＝LqΔf(l)+LJf(l)+LE[Δf(l)-Δf(l-1)]wherein, in the step (A),
Lqindicating the rate of change of the pressure at a great magnitude,
Figure BDA0002871491160000032
is the parameter of the integration of the image,
Figure BDA0002871491160000033
is a differential parameter.
In any of the above schemes, preferably, the nodes of each valve for gas pipeline pressure signal acquisition are distributed in a rectangular grid as a random array element, the boundary of the array is rectangular, and the obtained array signal output corresponds to m linear array vectors and satisfies the following requirements: bi(θi)＝φ(θi)hiWhere δ (t, k) is a function of δ,
Figure BDA0002871491160000034
for noise variance, a matrix array is established by adopting a Freenl approximation method based on the distributed signal acquisition function of the valve:
Figure BDA0002871491160000035
the pressure sensor consists of an address accumulator and a sine value ROM, the address accumulator module has two inputs, one is output, and the other is a clock signal foscAnd the other input is a frequency control word K, the address accumulation module comprises an N-bit address accumulation register, and the address accumulator accumulates K in each clock cycle to realize early warning monitoring of the pipeline pressure.
In any of the above schemes, preferably, the central processing unit filters the gas pipeline pressure signal by using wavelet transform, wherein the wavelet transform formula is as follows:
Figure BDA0002871491160000036
where ψ (t) is a basic wavelet function, α is a scale factor, τ is a shift factor, ψa,τ(t) is scale expansion and time translation of ψ (t),
Figure BDA0002871491160000037
a,τ∈R；a>0，<x,y>denotes inner product, symbol "+" denotes conjugate, ψ (t) is a square integrable function whose fourier transform ψ (ω) satisfies the condition:
Figure BDA0002871491160000041
when detecting pressure, the measurement signal f (t) is discretized into a discrete wavelet transform, which is defined as:
Figure BDA0002871491160000042
wherein j is 0,1,2. -; k ∈ Z.
Compared with the prior art, the invention has the beneficial effects that: through be provided with in the installing port and be used for detecting the pressure sensor of coal gas pressure in the pipeline, central processing unit is equipped with in the shell body, pressure sensor is used for transmitting the pressure value that detects to central processing unit, central processing unit is used for showing the pressure value on the one hand at display module, on the other hand is used for transmitting the pressure value to wireless transmitting module, wireless transmitting module carries out data communication with control terminal, and transmit the pressure value to control terminal, and central processing unit sends the location to wireless transmitting module in real time, wireless transmitting module and with location real-time transmission to control terminal, can realize detecting the coal gas pipeline in real time, and the work efficiency is greatly improved.
Drawings
The drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
Fig. 1 is a perspective view of a preferred embodiment of a gas pipeline service emergency repair valve according to the present invention.
Fig. 2 is a perspective view of the gas pipeline service and repair valve according to the present invention with the pipeline removed.
Fig. 3 is a schematic view showing the connection of the pipe and the connection pipe of the gas pipe service and repair valve according to the present invention.
Fig. 4 is a schematic diagram of the wireless transmission principle of the gas pipeline maintenance and repair valve according to the invention.
The reference numbers in the figures illustrate:
1. a pipeline; 11. a connecting pipe; 2. a display module; 3. an outer housing; 4. a valve; 5. and (7) installing the opening.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
For better understanding of the above technical solutions, the technical solutions of the present invention will be described in detail below with reference to the drawings and the detailed description of the present invention.
Example (b):
referring to fig. 1,2, 3 and 4, an embodiment of the invention discloses a gas pipeline maintenance and first-aid repair valve, which comprises a pipeline 1, a connecting pipe 11 and a valve 4, wherein one side of the pipeline 1 is connected with the connecting pipe 11, an installation port 5 is arranged below the valve 4 to enable the connecting pipe 11 to be inserted into the installation port 5, a pressure sensor for detecting gas pressure in the pipeline 1 is arranged in the installation port 5, an outer shell 3 is arranged outside the valve 4, a central processing unit is arranged in the outer shell 3, and the pressure sensor is used for transmitting a detected pressure value to the central processing unit.
Referring to fig. 1 and 4, the gas pipeline maintenance and repair valve further comprises a wireless transmitting module and a display module, the wireless transmitting module is arranged in the outer shell 3, the display module is arranged on one side of the outer shell 3, the central processing unit is used for displaying the pressure value on the display module on one hand and transmitting the pressure value to the wireless transmitting module on the other hand, and the wireless transmitting module is in data communication with the control terminal and transmits the pressure value to the control terminal.
Referring to fig. 1 and 4, a positioning module is disposed in the central processing unit, and the central processing unit sends the positioning to the wireless transmitting module in real time, and the wireless transmitting module transmits the positioning to the control terminal in real time.
In the gas pipeline maintenance and repair valve of the embodiment of the invention, when the valve 4 is installed, the valve 4 can be uniformly or non-uniformly installed on the pipeline 1, the pipeline 1 can be arranged into a plurality of sections, each two sections are communicated through the valve 4, the valve 4 is an electric valve which is electrically connected with a central processing unit, the positioning module can adopt a GPS positioning device, the GPS positioning device is installed in the central processing unit and connected with the central processing unit, the position of a certain node can be transmitted to a control terminal in real time, a pressure sensor for detecting the gas pressure in the pipeline 1 is arranged in the installation port 5, the central processing unit is arranged in the outer shell 3 and is used for transmitting the detected pressure value to the central processing unit, and the central processing unit is used for displaying the pressure value on a display module, on the other hand, the wireless transmitting module is used for transmitting the pressure value to the wireless transmitting module, the wireless transmitting module is in data communication with the control terminal and transmits the pressure value to the control terminal, the central processing unit sends the location to the wireless transmitting module in real time, the wireless transmitting module transmits the location to the control terminal in real time, when the pressure of a certain section is detected to be reduced, the central processing unit is used for displaying the pressure value on the display module on the one hand and transmitting the pressure value to the wireless transmitting module on the other hand, the wireless transmitting module is in data communication with the control terminal and transmits the pressure value to the control terminal, the central processing unit sends the location to the wireless transmitting module in real time, the wireless transmitting module transmits the location to the control terminal in real time to remind a worker in time, and then the central processing unit controls the electric valve to be, the gas pipeline can be detected in real time, maintenance is convenient, and working efficiency is greatly improved.
In the gas pipeline overhauling and rush-repairing valve provided by the embodiment of the invention, the 600MHz high-performance Blackfin core is arranged in the pressure sensor, the peak value computing capacity can reach 2.4GMAC/s, the pressure signal antenna sends a central processing unit, or a modulated noise signal passes through the attenuator and then is directly input into the central processing unit.
In the gas pipeline maintenance and rush-repair valve according to the embodiment of the invention, the autocorrelation control state equation of the pressure sensing data in the pressure sensor is as follows:
Figure BDA0002871491160000071
wherein L isqIndicating the rate of change of the line pressure, UJRepresenting integration time, UEIs differential time, the pipeline pressure control equation has the formula:
Δυ(l)＝LqΔf(l)+LJf(l)+LE[Δf(l)-Δf(l-1)]wherein, in the step (A),
Lqindicating the rate of change of the pressure at a great magnitude,
Figure BDA0002871491160000072
is the parameter of the integration of the image,
Figure BDA0002871491160000073
is a differential parameter.
In the gas pipeline maintenance and rush-repair valve provided by the embodiment of the invention, the nodes of each valve for collecting gas pipeline pressure signals are distributed in a rectangular grid as a random array element, the boundary of the array is rectangular, and the obtained array signal output corresponds to m linear array vectors and meets the following requirements: bi(θi)＝φ(θi)hiWhere δ (t, k) is a function of δ,
Figure BDA0002871491160000081
for noise variance, a matrix array is established by adopting a Freenl approximation method based on the distributed signal acquisition function of the valve:
Figure BDA0002871491160000082
the pressure sensor consists of an address accumulator and a sine value ROM, the address accumulator module has two inputs, one is output, and the other is a clock signal foscAnd the other input is a frequency control word K, the address accumulation module comprises an N-bit address accumulation register, and the address accumulator accumulates K in each clock cycle to realize early warning monitoring of the pipeline pressure.
The pressure monitoring and early warning of the gas pipeline can be realized, the original data acquisition and information processing are carried out, the pressure information of the pipeline is obtained, and the pressure and early warning and monitoring of the gas pipeline are realized.
In the gas pipeline maintenance and rush-repair valve provided by the embodiment of the invention, the central processing unit adopts wavelet transformation to filter a gas pipeline pressure signal, wherein the wavelet transformation formula is as follows:
Figure BDA0002871491160000083
in the formula, psi (t)Is a basic wavelet function, alpha is a scale factor, tau is a shift factor, psia,τ(t) is scale expansion and time translation of ψ (t),
Figure BDA0002871491160000084
a,τ∈R；a>0，<x,y>denotes inner product, symbol "+" denotes conjugate, ψ (t) is a square integrable function whose fourier transform ψ (ω) satisfies the condition:
Figure BDA0002871491160000085
when detecting pressure, the measurement signal f (t) is discretized into a discrete wavelet transform, which is defined as:
Figure BDA0002871491160000086
wherein j is 0,1,2. -; k ∈ Z.
The wavelet decomposition and filtering processing is carried out on the pressure measurement signal in the gas pipeline through wavelet transformation, the noise in the pressure measurement signal of the gas pipeline can be effectively removed by applying the wavelet transformation, the filtering effect is good, and processing and identification bases are provided for real-time monitoring and fault diagnosis of the gas pipeline.
Compared with the prior art, the invention has the beneficial effects that: through be provided with in installing port 5 and be used for detecting the pressure sensor of coal gas pressure in pipeline 1, set up central processing unit in outer casing 3, pressure sensor is used for transmitting the pressure value that detects to central processing unit, central processing unit is used for showing the pressure value on the display module on the one hand, on the other hand is used for transmitting the pressure value to wireless transmitting module, wireless transmitting module carries out data communication with control terminal, and transmit the pressure value to control terminal, and central processing unit sends the location to wireless transmitting module in real time, wireless transmitting module and with location real-time transmission to control terminal, can realize detecting the coal gas pipeline in real time, greatly improved work efficiency.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a gas pipeline overhauls salvagees valve which characterized in that: including pipeline (1), connecting pipe (11) and valve (4), pipeline (1) one side with connecting pipe (11) are connected, valve (4) below is provided with installing port (5), in order to realize connecting pipe (11) insert extremely in installing port (5), be provided with in installing port (5) and be used for detecting the pressure sensor of gas pressure in pipeline (1), valve (4) outside is provided with shell body (3), be provided with central processing unit in shell body (3), pressure sensor is used for transmitting the pressure value that detects extremely central processing unit.
2. The gas pipeline service and repair valve of claim 1, wherein: the pressure value display device is characterized by further comprising a wireless transmitting module and a display module, wherein the wireless transmitting module is arranged in the outer shell (3), the display module is arranged on one side of the outer shell (3), the central processing unit is used for displaying the pressure value on the display module on the one hand, and is used for transmitting the pressure value to the wireless transmitting module on the other hand, and the wireless transmitting module is in data communication with the control terminal and transmits the pressure value to the control terminal.
3. The gas pipeline service and repair valve of claim 2, wherein: and the central processing unit is internally provided with a positioning module, and the central processing unit sends the positioning to the wireless transmitting module in real time, and the wireless transmitting module transmits the positioning to the control terminal in real time.
4. The gas pipeline service and repair valve of claim 3, wherein: the pressure sensor is internally provided with a 600MHz high-performance Blackfin core, the peak computing capacity is 2.4GMAC/s, a pressure signal antenna is transmitted to a central processing unit, or a modulated noise signal is directly input to the central processing unit after passing through an attenuator.
5. The gas pipeline service and repair valve of claim 4, wherein: the autocorrelation control state equation of the pressure sensing data in the pressure sensor is as follows:
Figure FDA0002871491150000021
wherein L isqIndicating the rate of change of the line pressure, UJRepresenting integration time, UEIs differential time, the pipeline pressure control equation has the formula:
Δυ(l)＝LqΔf(l)+LJf(l)+LE[Δf(l)-Δf(l-1)]wherein, in the step (A),
Lqindicating the rate of change of the pressure at a great magnitude,
Figure FDA0002871491150000022
is the parameter of the integration of the image,
Figure FDA0002871491150000023
is a differential parameter.
6. The gas pipeline service and repair valve of claim 5, wherein: the nodes of each valve for collecting the gas pipeline pressure signals are distributed in a rectangular grid as a random array element, the boundary of the array is rectangular, and the obtained array signal output corresponds to m linear array vectors and meets the following requirements: bi(θi)＝φ(θi)hiWhere δ (t, k) is a function of δ,
Figure FDA0002871491150000028
for noise variance, a matrix array is established by adopting a Freenl approximation method based on the distributed signal acquisition function of the valve:
Figure FDA0002871491150000024
the pressure sensor consists of an address accumulator and a sine value ROM, the address accumulator module has two inputs, one is output, and the other is a clock signal foscAnd the other input is a frequency control word K, the address accumulation module comprises an N-bit address accumulation register, and the address accumulator accumulates K in each clock cycle to realize early warning monitoring of the pipeline pressure.
7. Gas pipeline service emergency repair valve according to any of claims 1 to 6, characterized in that: the central processing unit adopts wavelet transformation to filter the gas pipeline pressure signal, wherein the wavelet transformation formula is as follows:
Figure FDA0002871491150000025
where ψ (t) is a basic wavelet function, α is a scale factor, τ is a shift factor, ψa,τ(t) is scale expansion and time translation of ψ (t),
Figure FDA0002871491150000026
denotes inner product, symbol "+" denotes conjugate, ψ (t) is a square integrable function whose fourier transform ψ (ω) satisfies the condition:
Figure FDA0002871491150000027
when detecting pressure, the measurement signal f (t) is discretized into a discrete wavelet transform, which is defined as:
Figure FDA0002871491150000031
wherein j is 0,1,2. -; k ∈ Z.
CN202011603991.4A 2020-12-30 2020-12-30 Gas pipeline overhauling and rush-repairing valve Pending CN112682570A (en)

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