Online automatic detection device for hydrogen sulfide

Abstract

The utility model relates to the technical field of petroleum equipment, in particular to an on-line automatic detection device for hydrogen sulfide. Comprising 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 pipe, a check valve, a liquid pipe, a pollution discharge pressure release valve, a gas pipe, a stepping motor, a stepping motor push rod assembly, a gas detection cavity, a hydrogen sulfide gas detector, a warning lamp and a one-way gas valve. The device can detect whether the crude oil associated gas contains hydrogen sulfide gas in real time, and has the characteristics of simple structure and stable operation.

Description

Technical Field

[0001] This utility model relates to the field of petroleum equipment technology, and in particular to an online automatic detection device for hydrogen sulfide. Background Technology

[0002] Hydrogen sulfide is a toxic and corrosive gas during oil extraction and transportation, and accurate detection of its content is crucial for ensuring production safety and environmental protection. Traditional detection methods often suffer from problems such as complex operation, long detection cycles, high environmental requirements, and insufficient detection accuracy. Therefore, developing a device capable of rapid, accurate, and online automatic detection of hydrogen sulfide content in crude oil is of great significance. Summary of the Invention

[0003] To solve the above-mentioned technical problems and achieve the above-mentioned technical features, the present invention adopts the following technical solution.

[0004] An online automatic hydrogen sulfide detection device comprises a fixed base, a distribution box mounting frame, a distribution box, a pipe mounting frame, an electric control valve, a manual valve, a gas-liquid separator, a gas-liquid mixing pipe, a check valve, a liquid pipe, a drain and pressure relief valve, a gas 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 gas valve. The fixed base is located at the bottom of the entire device and is used to fix the overall structure of the device. The distribution box mounting frame includes distribution box mounting frame A and distribution box mounting frame B, which are used to connect to the fixed base and fix the distribution box. The distribution box connects distribution box mounting bracket A and distribution box mounting bracket B. The distribution box is used to distribute electrical energy to power this device. The distribution box contains a PLC controller. The pipe mounting brackets include pipe mounting bracket A, pipe mounting bracket B, and pipe mounting bracket C. These pipe mounting brackets are used to fix the gas-liquid separator, gas-liquid mixing pipe, and liquid pipe. The electric control valves include electric control valve A and electric control valve B. These electric control valves are used for real-time remote online control of the opening and closing of the pipe connections. The manual valves include manual valve A and manual valve B. Manual valve A is connected to electric control valve A and the gas-liquid separator... The device includes a cylinder, with manual valve A controlling crude oil entry into the gas-liquid separator and manual valve B controlling crude oil discharge. The gas-liquid mixing pipe comprises sections A and B. The check valves include check valve A and check valve B, enabling one-way crude oil entry and exit. The gas-liquid separator is connected to section A of the gas-liquid mixing pipe, check valve B, and a drain / pressure relief valve, separating associated gases and liquids within the crude oil. Section A of the gas-liquid mixing pipe is connected to electric control valve B and check valve A. Electric control valve B is connected to a gas pipe, which is connected to a one-way gas valve. A gas detection chamber is connected to a hydrogen sulfide gas detector. A stepper motor push rod assembly is connected to the top of the gas detection chamber, and a stepper motor is connected to the top of the stepper motor push rod assembly. The stepper motor controls the stepper motor push rod assembly to perform push-pull movements, which are used to extract and discharge associated crude oil gas within the gas detection chamber. A one-way gas valve is connected to section B of the gas-liquid mixing pipe, enabling one-way entry and exit of associated crude oil gas. Section B of the gas-liquid mixing pipe is connected to a manual valve B. A check valve B is connected to a liquid pipe, which is connected to section B of the gas-liquid mixing pipe.

[0005] Furthermore, the bottom of the gas-liquid separator is equipped with a drain and pressure relief valve, which is used to discharge impurities and dirt from the crude oil pipeline and to resolve pressure buildup caused by blockages in the pipeline.

[0006] Furthermore, the hydrogen sulfide gas detector is equipped with a warning light, which indicates that the associated gas in the crude oil being tested contains hydrogen sulfide gas when the warning light is on.

[0007] Furthermore, the hydrogen sulfide gas detector is equipped with an LED display screen, allowing users to intuitively read the detection data on whether hydrogen sulfide gas is present in the associated gas of crude oil.

[0008] Furthermore, the hydrogen sulfide gas detector is equipped with a signal transmission module. The signal transmission module is used to transmit the detection data of whether hydrogen sulfide gas is present in the associated gas of crude oil to the PLC controller in the power distribution box in real time. The PLC controller then transmits the detection data to the cloud server, and the user terminal obtains the detection data of hydrogen sulfide gas through the cloud server.

[0009] Furthermore, the stepper motor is connected to the stepper motor push rod assembly. The stepper motor achieves its own driving stroke through control pulse signals, thereby driving the stepper motor push rod assembly to perform push-pull movements.

[0010] The beneficial effects of this utility model are as follows: An online automatic hydrogen sulfide detection device is connected to a crude oil delivery pipeline and powered by a distribution box. The manual valve A, manual valve B, and electric control valve A of this device are adjusted to be in a pass. Crude oil flows into the gas-liquid separator through the electric control valve A and manual valve A. In the gas-liquid separator, the associated gas and liquid phase of the crude oil are separated. Most of the liquid phase of the crude oil enters the liquid pipe through check valve B and flows into the gas-liquid mixing pipe section B, then exits through manual valve B. The associated gas and a small amount of the liquid phase of the crude oil enter the gas-liquid mixing pipe section A. The small amount of liquid phase of the crude oil flows through the gas-liquid mixing pipe section A, through check valve A, and then into the gas-liquid mixing pipe section B, then exits through manual valve B. The associated gas flows into the gas pipe through the open circuit of the electric control valve B. The stepper motor is controlled by a pulse signal. The push rod assembly draws crude oil-associated gas from the gas pipe into the gas detection chamber. After entering the chamber, the gas is detected by a hydrogen sulfide gas detector. If hydrogen sulfide is present, a warning light illuminates. The detected gas is then pushed out of the detection chamber by the stepper motor push rod assembly, controlled by a stepper motor pulse signal. At this time, the electric control valve B closes. The discharged gas flows through a one-way valve into section B of the gas-liquid mixing pipe and is then discharged via manual valve B. Users can view the detection data online via a user terminal or directly read the data from the detector's LED display. If impurities or dirt affect the device's operation, the drain and pressure relief valve is opened for drainage and pressure relief. This online automatic hydrogen sulfide detection device achieves real-time detection of hydrogen sulfide in crude oil-associated gas. The device features a simple structure and stable operation. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the main structure of an online automatic hydrogen sulfide detection device.

[0012] Figure 2 This is a rear view schematic diagram of an online automatic hydrogen sulfide detection device.

[0013] In the diagram: 101-Fixed base, 102-Distribution box mounting bracket A, 103-Distribution box mounting bracket B, 104-Distribution box, 105-Pipe mounting bracket A, 106-Pipe mounting bracket B, 107-Pipe mounting bracket C, 201-Electric control valve A, 202-Manual valve A, 203-Gas-liquid separator, 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-Drainage and pressure relief valve, 211-Electric control valve B, 212-Gas pipe, 213-Stepper motor, 214-Stepper motor push rod assembly, 215-Gas detection chamber, 216-Hydrogen sulfide gas detector, 217-Warning light, 218-One-way gas valve. Detailed Implementation

[0014] This utility model provides an online automatic detection device for hydrogen sulfide, such as... Figure 1 , Figure 2As shown, an online automatic hydrogen sulfide detection device includes a fixed base 101, a power distribution box mounting bracket A102, a power distribution box mounting bracket B103, a power distribution box 104, a pipe mounting bracket A105, a pipe mounting bracket B106, a pipe mounting bracket C107, an electric control valve A201, a manual valve A202, a gas-liquid separator 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 drain and pressure relief valve 210, an electric control valve B211, a gas pipe 212, a stepper motor 213, a stepper motor push rod assembly 214, a gas detection chamber 215, and a hydrogen sulfide gas detection... The device comprises 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 entire device and is used to fix the overall structure of the device. The distribution box mounting bracket includes a distribution box mounting bracket A102 and a distribution box mounting bracket B103, which connect to the fixed base 101 and also serve to fix the distribution box 104. The distribution box 104 connects the distribution box mounting bracket A102 and the distribution box mounting bracket B103, and is used to distribute electrical energy to ensure normal power supply to the device. The distribution box 104 contains a PLC controller. The pipe mounting bracket includes a pipe mounting bracket A105 and a pipe mounting bracket B106. 6. Pipeline fixing bracket C107, used to fix the gas-liquid separator 203, gas-liquid mixing pipe, and liquid pipe 207; the electric control valve includes electric control valve A201 and electric control valve B211, used for real-time remote online control of the opening and closing of the pipeline connection; the manual valve includes manual valve A202 and manual valve B209, manual valve A202 is connected to electric control valve A201 and gas-liquid separator 203 respectively, manual valve A202 is used to control crude oil entering gas-liquid separator 203, and manual valve B209 is used to control crude oil exiting the device; the gas-liquid mixing pipe includes gas-liquid mixing pipe section A 20 4. Gas-liquid mixing pipe section B 208; the check valve includes check valve A205 and check valve B206, which are used to realize one-way inflow and outflow of crude oil; the gas-liquid separator 203 is connected to gas-liquid mixing pipe section A 204, check valve B206, and drain pressure relief valve 210, respectively, and is used to separate associated gas and liquid substances in crude oil; the gas-liquid mixing pipe section A 204 is connected to electric control valve B211 and check valve A205, respectively; electric control valve B211 is connected to gas pipe 212; gas pipe 212 is connected to one-way gas valve 218 and gas detection chamber 215, respectively; gas detection chamber 215 is connected to 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 extract and discharge the associated gas from the crude oil in the gas detection chamber 215 through push-pull movements. The one-way gas valve 218 is connected to section B of the gas-liquid mixing pipe 208, and the one-way gas valve 218 is used to realize the one-way entry and exit of the associated gas from the crude oil. Section B of the gas-liquid mixing pipe 208 is connected to a manual valve B209. The check valve B206 is connected to a liquid pipe 207. The liquid pipe 207 is connected to section B of the gas-liquid mixing pipe 208. The bottom of the gas-liquid separator 203 is provided with a drain and pressure relief valve 210, which is used to discharge impurities and dirt in the crude oil pipeline and to solve the pressure build-up caused by blockage in the pipeline. Hydrogen sulfide The gas detector 216 is equipped with a warning light 217, which indicates the presence of hydrogen sulfide gas in the associated crude oil. The hydrogen sulfide gas detector 216 also features an LED display screen, allowing users to visually read the detection data regarding the presence of hydrogen sulfide gas in the associated crude oil. Internally, the hydrogen sulfide gas detector 216 includes a signal transmission module that transmits the detection data in real-time to a PLC controller located in the distribution box 104. The PLC controller then transmits the data to a cloud server, allowing the user terminal to access the hydrogen sulfide gas detection data via the cloud server. The stepper motor 213 is connected to a stepper motor push rod assembly 214. The stepper motor 213 uses control pulse signals to achieve its own driving stroke, thereby driving the stepper motor push rod assembly 214 to perform push-pull movements.

[0015] An embodiment of this utility model involves an online automatic hydrogen sulfide detection device connected to a crude oil delivery pipeline and powered by a distribution box 104. The manual valves A202 and B209, and the electric control valve A201 are adjusted to be in a passable state. Crude oil flows into a gas-liquid separator 203 through the electric control valve A201 and the manual valve A202. In the gas-liquid separator 203, associated gases and liquid phase substances of the crude oil are separated. Most of the liquid phase substances pass through the check valve B206. The crude oil enters the liquid pipe 207 and flows through the liquid pipe 207 into the gas-liquid mixing pipe section B 208, and then exits through the manual valve B209. Associated crude oil gas and a small amount of crude oil liquid phase material enter the gas-liquid mixing pipe section A 204. A small amount of crude oil liquid phase material flows through the gas-liquid mixing pipe section A 204, passes through the check valve A205, and then flows into the gas-liquid mixing pipe section B 208, where it is discharged through the manual valve B209. Associated crude oil gas flows into the gas pipe 212 through the open circuit of the electric control valve B211. The stepper motor 213 controls the flow through the gas pipe 212 via pulse signals. The stepper motor push rod assembly 214 draws crude oil associated gas from the gas pipe 212 into the gas detection chamber 215. After entering the gas detection chamber 215, the crude oil associated gas is detected by the hydrogen sulfide gas detector 216 to determine whether it contains hydrogen sulfide gas. If hydrogen sulfide gas is present, the warning light 217 illuminates. After the hydrogen sulfide gas detection is completed, the crude oil associated gas is pushed out of the gas detection chamber 215 by the stepper motor push rod assembly 214 through the pulse signal of the stepper motor 213. At this time, the electric control valve B211 is closed. The crude oil associated gas discharged from the gas detection chamber 215 flows into the gas-liquid mixing pipe B section 208 through the one-way gas valve 218 and is then 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, or the user can directly read the detection data through the LED display screen of the hydrogen sulfide gas detector 216. When impurities or dirt in the device affect its working status, the drain and pressure relief valve 210 is opened for draining and pressure relief. An online automatic hydrogen sulfide detection device can achieve real-time detection of whether hydrogen sulfide gas is present in crude oil associated gas under the above operating conditions.

[0016] The above description is a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An online automatic detection device for hydrogen sulfide, characterized in that, The device comprises a fixed base, a distribution box mounting bracket, a distribution box, a pipe mounting bracket, an electric control valve, a manual valve, a gas-liquid separator, a gas-liquid mixing pipe, a check valve, a liquid pipe, a drain and pressure relief valve, a gas 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 gas valve. The fixed base is located at the bottom of the entire device and is used to fix the overall structure of the device. The distribution box mounting bracket includes distribution box mounting bracket A and distribution box mounting bracket B, which are used to connect to the fixed base and fix the distribution box. The distribution box is connected to the distribution box mounting bracket. The device is equipped with a mounting bracket A and a distribution box mounting bracket B. The distribution box is used to distribute electrical energy to power the device and contains a PLC controller. The pipe mounting brackets include pipe mounting bracket A, pipe mounting bracket B, and pipe mounting bracket C, which are used to fix the gas-liquid separator, gas-liquid mixing pipe, and liquid pipe. The electrically controlled valves include electrically controlled valve A and electrically controlled valve B, which are used for real-time remote online control of the opening and closing of the pipe connections. The manual valves include manual valve A and manual valve B, with manual valve A connected to both the electrically controlled valve A and the gas-liquid separator. Valve A controls the entry of crude oil into the gas-liquid separator, and manual valve B controls the discharge of crude oil from the device. The gas-liquid mixing pipe includes section A and section B. The check valve includes check valve A and check valve B, which enable one-way entry and exit of crude oil. The gas-liquid separator is connected to section A of the gas-liquid mixing pipe, check valve B, and a drain and pressure relief valve, and is used to separate associated gases and liquids within the crude oil. Section A of the gas-liquid mixing pipe is connected to electric control valve B and check valve A. Electric control valve B is connected to a gas pipe. The gas pipe is connected to a one-way gas valve and a gas... A detection chamber is included; the gas detection chamber is connected to a hydrogen sulfide gas detector; a stepper motor push rod assembly is connected to the top of the gas detection chamber, and a stepper motor is connected to the top of the stepper motor push rod assembly. 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 extract and discharge the associated gas from the crude oil in the gas detection chamber through push-pull movements; a 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 the one-way entry and exit of the associated gas from the crude oil; section B of the gas-liquid mixing pipe is connected to manual valve B; check valve B is connected to a liquid pipe; and 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, The bottom of the gas-liquid separator is equipped with a drain and pressure relief valve, which is used to discharge impurities and dirt from the crude oil pipeline and to resolve pressure build-up caused by blockages 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 equipped with a warning light. When the warning light is on, it indicates that the associated gas in the crude oil being tested 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 equipped with an LED display screen, allowing users to intuitively read the detection data on whether hydrogen sulfide gas is present in the associated gas of crude oil.

5. The online automatic detection device for hydrogen sulfide according to claim 1, characterized in that, The hydrogen sulfide gas detector is equipped with a signal transmission module. The signal transmission module is used to transmit the detection data of whether hydrogen sulfide gas is present in the associated gas of crude oil to the PLC controller in the power distribution box in real time. The PLC controller then transmits the detection data to the cloud server, and 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. The stepper motor achieves its own driving stroke through control pulse signals, thereby driving the stepper motor push rod assembly to perform push-pull movements.

Images