Online automatic detection device for hydrogen sulfide
By designing an online automatic detection device that includes a variety of valves, gas-liquid separator cylinders and stepper motor push rod components, the problems of complexity, long periods and insufficient accuracy of traditional detection methods are solved, and the rapid, accurate and online detection of hydrogen sulfide gas in crude oil-associated gas is achieved.
Patent Information
- Application Number
- CN202510236890.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-05-06
AI Technical Summary
The traditional hydrogen sulfide detection method has complex operation, long detection cycle, high environmental requirements and insufficient detection accuracy, which cannot meet the fast, accurate and online detection requirements for hydrogen sulfide content during oil extraction and transportation.
An online automatic detection device including a fixed base, a distribution box, a pipeline fixing frame, an electric control valve, a manual valve, a gas-liquid separation cylinder, a gas-liquid mixing pipe, a check valve, a liquid pipe, a sewage discharge pressure relief valve, a gas pipe, a stepper motor, a gas detection chamber and a hydrogen sulfide gas detector are designed. Through real-time remote online control and the push-pull movement of the stepper motor push rod assembly, the extraction and detection of crude oil associated gas is realized.
Real-time detection of hydrogen sulfide gas in crude oil-associated gas is achieved, and it has the characteristics of simple structure, stable operation, and rapid and accurate detection of hydrogen sulfide content online.
Smart Images
Figure CN119936365A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of petroleum equipment, and in particular to an online automatic detection device for hydrogen sulfide. Background Art
[0002] In the process of oil extraction and transportation, hydrogen sulfide is a toxic and corrosive gas. Accurate detection of its content is crucial to ensure production safety and environmental protection. Traditional detection methods often have problems such as complex operation, long detection cycle, high environmental requirements and insufficient detection accuracy. Therefore, it is of great significance to develop a device that can quickly, accurately and automatically detect the content of hydrogen sulfide in crude oil online. Summary of the invention
[0003] In order to solve the above technical problems and realize the above technical features, the present invention adopts the following technical solutions.
[0004] An online automatic detection device for hydrogen sulfide includes a fixed base, a distribution box fixing frame, a distribution box, a pipeline fixing frame, an electric control valve, a manual valve, a gas-liquid separation cylinder, a gas-liquid mixing tube, a check valve, a liquid pipe, a sewage pressure relief valve, an air pipe, a stepper motor, a stepper motor push rod assembly, a gas detection chamber, a hydrogen sulfide gas detector, a warning light, and a one-way air valve. The fixed base is located at the bottom of the device as a whole, and the fixed base is used to fix the overall structure of the device; the distribution box fixing frame includes a distribution box fixing frame A and a distribution box fixing frame B, and the distribution box fixing frame is used to connect the fixed base and play a role in fixing the distribution box; the The distribution box connects the distribution box fixing frame A and the distribution box fixing frame B. The distribution box is used to distribute electric energy to enable the device to be powered normally. The distribution box contains a PLC controller; the pipeline fixing frame includes pipeline fixing frame A, pipeline fixing frame B, and pipeline fixing frame C. The pipeline fixing frame is used to fix the gas-liquid separation cylinder, the gas-liquid mixing tube, and the liquid tube; the electric control valve includes electric control valve A and electric control valve B. The electric control valve is used to remotely control the opening and closing circuit of the pipeline connection part in real time online; the manual valve includes manual valve A and manual valve B. The manual valve A is respectively connected to the electric control valve A, the gas-liquid separation The manual valve A is used to control the crude oil to enter the gas-liquid separation cylinder, and the manual valve B is used to control the crude oil to be discharged from the device; the gas-liquid mixing tube includes a gas-liquid mixing tube section A and a gas-liquid mixing tube section B; the check valve includes a check valve A and a check valve B, and the check valve is used to achieve one-way entry and exit of crude oil; the gas-liquid separation cylinder is respectively connected to the gas-liquid mixing tube section A, the check valve B, and the sewage pressure relief valve, and the gas-liquid separation cylinder is used to achieve the separation of associated gas and liquid phase substances in crude oil; the gas-liquid mixing tube section A is respectively connected to the electric control valve B and the check valve A; the electric control valve B is connected to the air pipe; the air pipe is respectively connected to the one-way air valve And the gas detection chamber; the gas detection chamber is connected to the hydrogen sulfide gas detector; the top of the gas detection chamber is connected to the stepper motor push rod assembly, the top of the stepper motor push rod assembly is connected to the stepper motor, the stepper motor controls the stepper motor push rod assembly to do push-pull movement, and the stepper motor push rod assembly is used to realize the extraction and discharge of crude oil associated gas in the gas detection chamber through push-pull movement; the one-way gas valve is connected to the gas-liquid mixing pipe section B, and the one-way gas valve is used to realize the one-way entry and exit of crude oil associated gas; the gas-liquid mixing pipe section B is connected to the manual valve B; the check valve B is connected to the liquid pipe; the liquid pipe is connected to the gas-liquid mixing pipe section B.
[0005] Furthermore, a sewage discharge and pressure relief valve is provided at the bottom of the gas-liquid separation cylinder, and the sewage discharge and pressure relief valve is used to discharge impurities and dirt in the crude oil pipeline and solve the pressure build-up caused by blockage in the pipeline.
[0006] Furthermore, the hydrogen sulfide gas detector is provided with a warning light, and when the warning light is on, it indicates that the measured crude oil associated gas contains hydrogen sulfide gas.
[0007] Furthermore, the hydrogen sulfide gas detector is provided with an LED display screen, and the user can intuitively read the detection data of whether the crude oil associated gas contains hydrogen sulfide gas.
[0008] Furthermore, a signal transmission module is provided inside the hydrogen sulfide gas detector, and the signal transmission module is used to transmit the detection data of whether the crude oil associated gas contains hydrogen sulfide gas in real time to the PLC controller provided in the distribution box, and then the PLC controller transmits the detection data to the cloud server, and then the user terminal obtains the detection data of hydrogen sulfide gas through the cloud server.
[0009] Furthermore, the stepper motor is connected to a stepper motor push rod assembly, and the stepper motor realizes its own driving stroke by controlling the pulse signal, thereby driving the stepper motor push rod assembly to perform push-pull motion.
[0010] The beneficial effects of the present invention are as follows: an online automatic detection device for hydrogen sulfide is connected to a crude oil transmission pipeline and powered by a distribution box, a manual valve A, a manual valve B and an electric control valve A of the device are adjusted into a passage, crude oil flows into a gas-liquid separation cylinder through the electric control valve A and the manual valve A, crude oil realizes separation of crude oil associated gas and crude oil liquid phase substances in the gas-liquid separation cylinder, most of the crude oil liquid phase substances enter the liquid pipe through the check valve B and flow into the gas-liquid mixing pipe section B via the liquid pipe and are then discharged through the manual valve B, crude oil associated gas and a small amount of crude oil liquid phase substances enter the gas-liquid mixing pipe section A, a small amount of crude oil liquid phase substances flow through the gas-liquid mixing pipe section A through the check valve A and then flow into the gas-liquid mixing pipe section B and are then discharged through the manual valve B, crude oil associated gas flows into the gas pipe through the electric control valve B opening, and the stepper motor controls the stepper motor to push the stepper motor through a pulse signal The rod assembly extracts the crude oil associated gas in the gas pipe into the gas detection chamber. After the crude oil associated gas enters the gas detection chamber, the hydrogen sulfide gas detector detects whether the crude oil associated gas contains hydrogen sulfide gas. If it contains hydrogen sulfide gas, the warning light will be on. The crude oil associated gas that has completed the hydrogen sulfide gas detection is discharged from the gas detection chamber through the stepper motor pulse signal to control the stepper motor push rod assembly to push out. At this time, the electric control valve B is closed. The crude oil associated gas discharged from the gas detection chamber flows into the gas-liquid mixing pipe section B through the one-way gas valve and is discharged through the manual valve B. The user can view the detection data measured by the hydrogen sulfide gas detector online through the user terminal. The user can also directly read the detection data through the LED display screen provided by the hydrogen sulfide gas detector. When there are impurities and dirt in the device that affect the working state of the device, the sewage and pressure relief valve will be opened to discharge sewage and relieve pressure. An online automatic hydrogen sulfide detection device can realize real-time detection of whether the crude oil associated gas contains hydrogen sulfide gas through the above-mentioned operation. The device has the characteristics of simple structure and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1The present invention is a schematic diagram of the main structure of an online automatic detection device for hydrogen sulfide.
[0012] Figure 2 The figure is a rear structural schematic diagram of an online automatic detection device for hydrogen sulfide.
[0013] In the figure: 101-fixed base, 102-distribution box fixing frame A, 103-distribution box fixing frame B, 104-distribution box, 105-pipe fixing frame A, 106-pipe fixing frame B, 107-pipe fixing frame C, 201-electric control valve A, 202-manual valve A, 203-gas-liquid separation cylinder, 204-gas-liquid mixing pipe section A, 205-check valve A, 206-check valve B, 207-liquid pipe, 208-gas-liquid mixing pipe section B, 209-manual valve B, 210-drain pressure relief valve, 211-electric control valve B, 212-gas pipe, 213-stepping motor, 214-stepping motor push rod assembly, 215-gas detection chamber, 216-hydrogen sulfide gas detector, 217-warning light, 218-one-way gas valve. DETAILED DESCRIPTION
[0014] The embodiment of the present invention provides an online automatic detection device for hydrogen sulfide, such as Figure 1 , Figure 2As shown, an online automatic detection device for hydrogen sulfide includes a fixed base 101, a distribution box fixing frame A102, a distribution box fixing frame B103, a distribution box 104, a pipeline fixing frame A105, a pipeline fixing frame B106, a pipeline fixing frame C107, an electric control valve A201, a manual valve A202, a gas-liquid separation cylinder 203, a gas-liquid mixing pipe section A 204, a check valve A205, a check valve B206, a liquid pipe 207, a gas-liquid mixing pipe section B 208, a manual valve B209, a sewage pressure relief valve 210, an electric control valve B211, a gas pipe 212, a stepping motor 213, a stepping motor push rod assembly 214, a gas detection chamber 215, and a hydrogen sulfide gas detection chamber. The device is composed of a measuring instrument 216, a warning light 217, and a one-way air valve 218. The fixed base 101 is located at the bottom of the device as a whole, and the fixed base 101 is used to fix the overall structure of the device; the distribution box fixing frame includes a distribution box fixing frame A102 and a distribution box fixing frame B103, and the distribution box fixing frame is used to connect the fixed base 101 and play a role in fixing the distribution box 104; the distribution box 104 connects the distribution box fixing frame A102 and the distribution box fixing frame B103, and the distribution box 104 is used to distribute electric energy so that the device can be powered normally, and the distribution box 104 contains a PLC controller; the pipe fixing frame includes a pipe fixing frame A105, a pipe fixing frame B106, and a pipe fixing frame A107. 6. Pipe fixing frame C107, the pipeline fixing frame is used to fix the gas-liquid separation cylinder 203, the gas-liquid mixing tube, and the liquid tube 207; the electric control valve includes an electric control valve A201 and an electric control valve B211, and the electric control valve is used to remotely control the opening and closing of the pipeline connection part online in real time; the manual valve includes a manual valve A202 and a manual valve B209, the manual valve A202 is connected to the electric control valve A201 and the gas-liquid separation cylinder 203 respectively, the manual valve A202 is used to control the crude oil to enter the gas-liquid separation cylinder 203, and the manual valve B209 is used to control the crude oil to be discharged from the device; the gas-liquid mixing tube includes a gas-liquid mixing tube section A 20 4. Gas-liquid mixing pipe section B 208; the check valve includes a check valve A205 and a check valve B206, and the check valve is used to realize one-way inflow and outflow of crude oil; the gas-liquid separation cylinder 203 is respectively connected to the gas-liquid mixing pipe section A 204, the check valve B206, and the sewage pressure relief valve 210, and the gas-liquid separation cylinder 203 is used to separate the associated gas and liquid phase substances in the crude oil; the gas-liquid mixing pipe section A 204 is respectively connected to the electric control valve B211 and the check valve A205; the electric control valve B211 is connected to the air pipe 212; the air pipe 212 is respectively connected to the one-way air valve 218 and the gas detection chamber 215; the gas detection chamber 215 is connected to the hydrogen sulfide gas detector 216;The top of the gas detection chamber 215 is connected to a stepper motor push rod assembly 214, and the top of the stepper motor push rod assembly 214 is connected to a stepper motor 213. The stepper motor 213 controls the stepper motor push rod assembly 214 to perform push-pull movements. The stepper motor push rod assembly 214 is used to realize the extraction and discharge of crude oil associated gas in the gas detection chamber 215 through push-pull movements; the one-way gas valve 218 is connected to the gas-liquid mixing pipe section B 208, and the one-way gas valve 218 is used to realize the one-way entry and exit of crude oil associated gas; the gas-liquid mixing pipe section B 208 is connected to a manual valve B209; the check valve B206 is connected to the liquid pipe 207; the liquid pipe 207 is connected to the gas-liquid mixing pipe section B 208; a sewage pressure relief valve 210 is provided at the bottom of the gas-liquid separation cylinder 203, and the sewage pressure relief valve 210 is used to discharge impurities and dirt in the crude oil pipeline and solve the pressure buildup caused by blockage in the pipeline; the hydrogen sulfide The gas detector 216 is provided with a warning light 217, which indicates that the crude oil associated gas contains hydrogen sulfide when it is on; the hydrogen sulfide gas detector 216 is provided with an LED display screen, and the user can intuitively read the detection data of whether the crude oil associated gas contains hydrogen sulfide; the hydrogen sulfide gas detector 216 is provided with a signal transmission module, which is used to transmit the detection data of whether the crude oil associated gas contains hydrogen sulfide in real time to the PLC controller provided in the distribution box 104, and then the PLC controller transmits the detection data to the cloud server, and then the user terminal obtains the detection data of hydrogen sulfide through the cloud server; the stepper motor 213 is connected to the stepper motor push rod assembly 214, and the stepper motor 213 realizes the driving stroke of the stepper motor 213 itself by controlling the pulse signal, and then drives the stepper motor push rod assembly 214 to do push and pull movements. ;
[0015] The embodiment of the present invention is an online automatic detection device for hydrogen sulfide connected to a crude oil transmission pipeline and powered by a distribution box 104. The manual valve A202, the manual valve B209, and the electric control valve A201 of the device are adjusted to form a passage. The crude oil flows into a gas-liquid separation cylinder 203 through the electric control valve A201 and the manual valve A202. The crude oil realizes separation of the associated gas and the liquid phase of the crude oil in the gas-liquid separation cylinder 203. Most of the liquid phase of the crude oil enters through the check valve B206. The liquid pipe 207 flows into the gas-liquid mixing pipe B section 208 through the liquid pipe 207 and is then discharged through the manual valve B209. The crude oil associated gas and a small amount of crude oil liquid phase substances enter the gas-liquid mixing pipe A section 204. A small amount of crude oil liquid phase substances flow through the gas-liquid mixing pipe A section 204 through the check valve A205 and then flow into the gas-liquid mixing pipe B section 208 and are then discharged through the manual valve B209. The crude oil associated gas flows into the gas pipe 212 through the electric control valve B211. The stepper motor 213 is controlled by a pulse signal. The stepper motor push rod assembly 214 draws the crude oil associated gas in the gas pipe 212 into the gas detection chamber 215. After the crude oil associated gas enters the gas detection chamber 215, the hydrogen sulfide gas detector 216 detects whether the crude oil associated gas contains hydrogen sulfide gas. If it contains hydrogen sulfide gas, the warning light 217 lights up. The crude oil associated gas that has completed the hydrogen sulfide gas detection is pushed out of the gas detection chamber 215 by the stepper motor 213 pulse signal to control the stepper motor push rod assembly 214. At this time, the electric control valve B211 is closed, and the crude oil associated gas discharged from the gas detection chamber 215 flows into the gas-liquid mixing pipe section B 208 through the one-way gas valve 218 and is discharged through the manual valve B209. The user can view the detection data measured by the hydrogen sulfide gas detector 216 online through the user terminal, and the user can also directly read the detection data through the LED display screen provided on the hydrogen sulfide gas detector 216. When impurities and dirt exist in the device and affect the working state of the device, the sewage discharge and pressure relief valve 210 is opened for sewage discharge and pressure relief. An online automatic hydrogen sulfide detection device can realize real-time detection of whether the crude oil associated gas contains hydrogen sulfide gas through the above operation conditions.
[0016] The above are preferred embodiments of the present invention. It should be pointed out that a person skilled in the art may make several improvements and modifications without departing from the principles of the invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. An online automatic detection device for hydrogen sulfide, characterized in that: It includes a fixed base, a distribution box fixing frame, a distribution box, a pipe fixing frame, an electric control valve, a manual valve, a gas-liquid separation cylinder, a gas-liquid mixing tube, a check valve, a liquid pipe, a sewage pressure relief valve, an air pipe, a stepper motor, a stepper motor push rod assembly, a gas detection chamber, a hydrogen sulfide gas detector, a warning light, and a one-way air valve. The fixed base is located at the bottom of the entire device, and the fixed base is used to fix the overall structure of the device; the distribution box fixing frame includes a distribution box fixing frame A and a distribution box fixing frame B. The distribution box fixing frame is used to connect the fixed base and play a role in fixing the distribution box; the distribution box is connected to the distribution box fixing frame The frame A and the distribution box fixing frame B, the distribution box is used to distribute electric energy to enable the device to be powered normally, and the distribution box contains a PLC controller; the pipeline fixing frame includes a pipeline fixing frame A, a pipeline fixing frame B, and a pipeline fixing frame C, and the pipeline fixing frame is used to fix the gas-liquid separation cylinder, the gas-liquid mixing tube, and the liquid pipe; the electric control valve includes an electric control valve A and an electric control valve B, and the electric control valve is used to remotely control the opening and closing circuit of the pipeline connection part in real time online; the manual valve includes a manual valve A and a manual valve B, and the manual valve A is connected to the electric control valve A and the gas-liquid separation cylinder respectively, and the manual valve The door A is used to control the crude oil to enter the gas-liquid separation cylinder, and the manual valve B is used to control the crude oil to be discharged from the device; the gas-liquid mixing pipe includes a gas-liquid mixing pipe section A and a gas-liquid mixing pipe section B; the check valve includes a check valve A and a check valve B, and the check valve is used to achieve one-way entry and exit of crude oil; the gas-liquid separation cylinder is respectively connected to the gas-liquid mixing pipe section A, the check valve B, and the sewage pressure relief valve, and the gas-liquid separation cylinder is used to achieve the separation of associated gas and liquid phase substances in crude oil; the gas-liquid mixing pipe section A is respectively connected to the electric control valve B and the check valve A; the electric control valve B is connected to the air pipe; the air pipe is respectively connected to the one-way air valve and the gas detection chamber; the gas detection chamber is connected to a hydrogen sulfide gas detector; the top of the gas detection chamber is connected to a stepper motor push rod assembly, the top of the stepper motor push rod assembly is connected to a stepper motor, the stepper motor controls the stepper motor push rod assembly to perform push-pull movements, and the stepper motor push rod assembly is used to realize the extraction and discharge of crude oil associated gas in the gas detection chamber through push-pull movements; the one-way gas valve is connected to section B of the gas-liquid mixing pipe, and the one-way gas valve is used to realize one-way entry and exit of crude oil associated gas; section B of the gas-liquid mixing pipe is connected to a manual valve B; the check valve B is connected to a liquid pipe; the liquid pipe is connected to section B of the gas-liquid mixing pipe.
2. The online automatic detection device for hydrogen sulfide according to claim 1, characterized in that: A sewage discharge and pressure relief valve is provided at the bottom of the gas-liquid separation cylinder, and the sewage discharge and pressure relief valve is used to discharge impurities and dirt in the crude oil pipeline and solve the pressure build-up caused by blockage in the pipeline.
3. The online automatic detection device for hydrogen sulfide according to claim 1, characterized in that: The hydrogen sulfide gas detector is provided with a warning light, and when the warning light is on, it indicates that the measured crude oil associated gas contains hydrogen sulfide gas.
4. The online automatic detection device for hydrogen sulfide according to claim 1, characterized in that: The hydrogen sulfide gas detector is provided with an LED display screen, and the user can intuitively read the detection data of whether the crude oil associated gas contains hydrogen sulfide gas.
5. The online automatic detection device for hydrogen sulfide according to claim 1, characterized in that: A signal transmission module is provided inside the hydrogen sulfide gas detector, which is used to transmit the detection data of whether the crude oil associated gas contains hydrogen sulfide gas in real time to the PLC controller provided in the distribution box, and then the PLC controller transmits the detection data to the cloud server, and then the user terminal obtains the detection data of hydrogen sulfide gas through the cloud server.
6. The online automatic detection device for hydrogen sulfide according to claim 1, characterized in that: The stepper motor is connected to the stepper motor push rod assembly, and the stepper motor realizes its own driving stroke by controlling the pulse signal, thereby driving the stepper motor push rod assembly to perform push-pull motion.