Sampling test valve
By designing a sampling and testing valve with multi-stage filtration and desulfurization treatment, the problems of low safety and insufficient accuracy of hydrogen sulfide detection devices in oil wells were solved, realizing safe and reliable detection and real-time alarm in complex oil well environments.
Patent Information
- Application Number
- CN202520342825.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing hydrogen sulfide detection devices for oil wells suffer from low safety, susceptibility to environmental interference, insufficient accuracy, and lack of real-time alarm and data storage functions.
A sampling and testing valve was designed, comprising an air inlet pipe, a filter chamber, a funnel-shaped filter, a chamber locking chuck, a liquid collection chamber, a filter element fixing chamber, a filter element, an air pipe, a safety pressure relief valve, a filter support base, a filter fixing plate, a desulfurization chamber, an exhaust valve, a hydrogen sulfide gas detector, and an alarm light. This valve achieves the detection and removal of hydrogen sulfide through multi-stage filtration and desulfurization treatment.
It enables safe and reliable detection and real-time alarm of hydrogen sulfide in complex oil well environments, improves detection accuracy, has data storage function, and has a compact structure, making it suitable for complex oil well environments.
Smart Images
Figure CN223870371U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oil and gas field safety technical field, concretely relates to a sampling test valve. BACKGROUND
[0002] Hydrogen sulfide (H2S) is a toxic gas in oil well exploitation, which can easily cause poisoning and equipment corrosion. The existing detection device has the following problems: the sampling process relies on manual operation, the safety is low; it is easily disturbed by the oil well environment (high temperature, high humidity, impurities), and the precision is insufficient; it lacks integrated design, and it is difficult to realize real-time alarm and data storage. SUMMARY
[0003] To solve the above technical problems, a device for detecting hydrogen sulfide gas and desulfurization is provided, which is compact in structure, safe and reliable, and suitable for complex oil well environment. The utility model adopts the following technical scheme.
[0004] A sampling test valve, comprising an air inlet pipe, a filter screen cavity, a funnel filter screen, a cavity locking chuck, a loose locking piece, a liquid collecting cavity, a filter element fixing cavity, a filter element A, a filter element B, an air pipe, a safety relief valve, a filter screen support base, a filter screen, a filter screen fixing disc, a desulfurization cavity, an exhaust valve, a hydrogen sulfide gas detector, and a warning light. The air inlet pipe is the inlet for crude oil associated gas into the device. The filter screen cavity is connected to the air inlet pipe. The funnel filter screen is arranged inside the filter screen cavity. The cavity locking chuck connects the liquid collecting cavity and the filter screen cavity. The cavity locking chuck cooperates with the loose locking piece to realize quick disassembly and assembly of the liquid collecting cavity. The filter screen cavity is connected to the filter element fixing cavity at the top. The filter element fixing cavity can install the filter element A and the filter element B. The air pipe is connected to the filter element fixing cavity. The safety relief valve is connected to the air pipe and the bottom passage of the filter screen support base, respectively. The filter screen support base supports the filter screen. The filter screen fixing disc connects the desulfurization cavity and fixes the filter screen. The desulfurization cavity is connected to the exhaust valve at the top. The filter element fixing cavity is connected to the hydrogen sulfide gas detector at the top. The hydrogen sulfide gas detector is provided with a warning light.
[0005] Further, the funnel filter screen has a funnel shape, and gas holes are uniformly arranged on the surface. The funnel filter screen is used to filter the moisture in the crude oil associated gas. The humid crude oil associated gas containing water is condensed into liquid water droplets by the funnel filter screen, and then flows into the liquid collecting cavity through the bottom and the gas holes of the funnel filter screen.
[0006] Further, the filter element A and the filter element B are installed in the slotted position of the filter element fixing cavity. The filter element A and the filter element B are used to further filter the impurities in the crude oil associated gas.
[0007] Further, the filter screen is arranged at the bottom of the desulfurization cavity, and the filter screen is fixed by a filter screen fixing disc and a filter screen supporting base.
[0008] Further, the hydrogen sulfide gas detector is connected to the top of the filter element fixing cavity, and the hydrogen sulfide gas detector is provided with a warning light, which is bright when the hydrogen sulfide gas detector detects that the crude oil associated gas contains hydrogen sulfide gas.
[0009] Preferably, the desulfurization cavity is internally provided with iron oxide desulfurizer, the iron oxide desulfurizer is in the form of large particles, and the iron oxide desulfurizer can adsorb sulfur compounds in the crude oil associated gas into the iron oxide desulfurizer, thereby removing hydrogen sulfide gas.
[0010] The beneficial effects of the utility model are as follows: when a sampling test valve is in a working state, crude oil associated gas flows into the filter screen cavity through the gas inlet pipe, the moisture possibly contained in the crude oil associated gas is filtered by the funnel-shaped filter screen arranged in the filter screen cavity, the moisture in the moisture is condensed on the air holes or the bottom of the funnel-shaped filter screen and then flows into the liquid collecting cavity, the cavity locking chuck connects the liquid collecting cavity and the filter screen cavity, the cavity locking chuck cooperates with the loose locking piece to realize quick disassembly and assembly of the liquid collecting cavity, and the moisture separation water in the crude oil associated gas in the liquid collecting cavity can be quickly cleaned by cooperation of the cavity locking chuck and the loose locking piece. The crude oil associated gas filtered by the funnel-shaped filter screen flows into the filter element fixing cavity, the filter element A and the filter element B arranged in the filter element fixing cavity are used for filtering impurities in the crude oil associated gas, the hydrogen sulfide gas detector connected to the top of the filter element fixing cavity is used for detecting the concentration of hydrogen sulfide gas in the crude oil associated gas, the warning light is bright when the hydrogen sulfide gas detector detects that the crude oil associated gas contains hydrogen sulfide gas, the crude oil associated gas flows into the desulfurization cavity through the filter element fixing cavity, the gas pipe, the safe pressure relief valve passage, the filter screen fixed by the filter screen fixing disc and the filter screen supporting base, the iron oxide desulfurizer arranged in the desulfurization cavity is used for adsorbing sulfur compounds in the crude oil associated gas into the iron oxide desulfurizer, thereby removing hydrogen sulfide gas, the harmless associated gas after desulfurization is discharged through the exhaust valve arranged at the top of the desulfurization cavity, the sampling test valve realizes detection and desulfurization of hydrogen sulfide gas by using the above working state, and the technical scheme provided by the utility model has the characteristics of compact structure and safety and reliability. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a perspective structural schematic view of a sampling test valve.
[0012] Figure 2 It is a sectional structural schematic view of a sampling test valve.
[0013] Figure 3It is an explosive structure schematic diagram of a sampling test valve.
[0014] In the figure: 101 - air inlet pipe, 102 - filter screen cavity, 103 - funnel filter screen, 104 - cavity locking chuck, 105 - loose locking piece, 106 - liquid collecting cavity, 107 - filter element fixing cavity, 108 - filter element A, 109 - filter element B, 110 - air pipe, 111 - safety pressure relief valve, 112 - filter screen support base, 113 - filter screen, 114 - filter screen fixing disc, 115 - desulfurization cavity, 116 - exhaust valve, 117 - hydrogen sulfide gas detector, 118 - warning light. DETAILED DESCRIPTION
[0015] The utility model embodiment provides a kind of sampling test valve, such as Figure 1 、 Figure 2 、 Figure 3As shown, a kind of sampling test valve, including air inlet pipe 101, filter screen cavity 102, funnel filter screen 103, cavity locking chuck 104, loose locking piece 105, liquid collecting cavity 106, filter core fixed cavity 107, filter core A 108, filter core B 109, air pipe 110, safety pressure relief valve 111, filter screen support base 112, filter screen 113, filter screen fixing disc 114, desulfurization cavity 115, exhaust valve 116, hydrogen sulfide gas detector 117, warning light 118 composition, the air inlet pipe 101 is the entrance of crude oil associated gas into the device, the filter screen cavity 102 is connected with air inlet pipe 101, the filter screen cavity 102 is equipped with funnel filter screen 103 inside, the cavity locking chuck 104 is connected with liquid collecting cavity 106 and filter screen cavity 102, the cavity locking chuck 104 is matched with loose locking piece 105 to realize the quick disassembly of liquid collecting cavity 106, the filter screen cavity 102 top is connected with filter core fixed cavity 107, the filter core fixed cavity 107 can install filter core A 108, filter core B 109, the air pipe 110 is connected with filter core fixed cavity 107, the safety pressure relief valve 111 is connected with air pipe 110 and filter screen support base 112 bottom passage respectively, the filter screen support base 112 supports filter screen 113, the filter screen fixing disc 114 is connected with desulfurization cavity 115 and fixes filter screen 113, the desulfurization cavity 115 top is connected with exhaust valve 116, the filter core fixed cavity 107 top is connected with hydrogen sulfide gas detector 117, the hydrogen sulfide gas detector is equipped with warning light 118;The funnel filter screen 103 is funnel-shaped, and the surface is uniformly arranged with air holes, the funnel filter screen 103 is used to filter the moisture in the crude oil associated gas, so that the humid crude oil associated gas containing water is condensed into liquid water droplets by the funnel filter screen 103 and flows into the liquid collecting cavity 106 through the bottom and air holes of the funnel filter screen 103;Filter core A 108, filter core B 109 are installed in the slotted position of filter core fixed cavity 107, and filter core A 108, filter core B 109 are used to further filter the impurities in the crude oil associated gas;The filter screen 113 is arranged at the bottom of the desulfurization cavity 115, and the filter screen 113 is fixed by the filter screen support base 112 and the filter screen fixing disc 114, the filter screen 113 is used to prevent the iron oxide desulfurizer particles from falling into the safety pressure relief valve 111 and provide a passage for the crude oil associated gas into the desulfurization cavity 115;The desulfurization cavity 115 is internally provided with iron oxide desulfurizer, the iron oxide desulfurizer is in the form of large particles, the iron oxide desulfurizer can adsorb the sulfur compounds in the crude oil associated gas into the iron oxide desulfurizer, so as to remove hydrogen sulfide gas, the hydrogen sulfide gas detector 117 is connected with the top of filter core fixed cavity 107, the hydrogen sulfide gas detector 117 is equipped with warning light 118, when the hydrogen sulfide gas detector 117 detects that the crude oil associated gas contains hydrogen sulfide gas, the warning light 118 is bright.
[0016] In an embodiment of this utility model, when a sampling test valve is in operation, crude oil associated gas flows into the filter chamber 102 through the inlet pipe 101. The funnel-shaped filter 103 in the filter chamber 102 filters out any moisture that may be present in the crude oil associated gas. The moisture in the gas condenses in the pores or bottom of the funnel-shaped filter 103 and then flows into the collection chamber 106. The chamber locking chuck 104 connects the collection chamber 106 and the filter chamber 102. The chamber locking chuck 104 cooperates with the movable locking member 105 to achieve quick assembly and disassembly of the collection chamber 106. The quick assembly and disassembly of the collection chamber 106 using the cooperation of the chamber locking chuck 104 and the movable locking member 105 can quickly clean the moisture in the crude oil associated gas in the collection chamber 106 and separate the water. The crude oil associated gas, filtered by the funnel-type filter 103, flows into the filter element fixing chamber 107. The filter elements A108 and B109 in the filter element fixing chamber 107 filter impurities from the crude oil associated gas. The concentration of hydrogen sulfide gas in the filtered crude oil associated gas is detected by a hydrogen sulfide gas detector 117 connected to the top of the filter element fixing chamber 107. When hydrogen sulfide gas is detected in the crude oil associated gas, an alarm light 118 illuminates, and the crude oil associated gas passes through the filter element fixing chamber 107. 7. The air pipe 110, the safety relief valve 111 passage, the filter screen fixing plate 114 and the filter screen support base 112 fixed to the filter screen 113 flow into the desulfurization chamber 115. The iron oxide desulfurizing agent contained in the desulfurization chamber 115 adsorbs the sulfur-containing compounds in the crude oil associated gas into the iron oxide desulfurizing agent, thereby removing hydrogen sulfide gas. The harmless associated gas after desulfurization is discharged through the exhaust valve 116 provided at the top of the desulfurization chamber 115. A sampling test valve uses the above working state to realize the detection and desulfurization of hydrogen sulfide gas.
[0017] 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. A sampling test valve, characterized in that, The system includes an inlet pipe, a filter chamber, a funnel-shaped filter, a chamber locking chuck, a swivel locking element, a liquid collection chamber, a filter element fixing chamber, filter element A, filter element B, a gas pipe, a safety relief valve, a filter support base, a filter, a filter fixing plate, a desulfurization chamber, an exhaust valve, a hydrogen sulfide gas detector, and an alarm light. The inlet pipe is the entrance for crude oil-associated gases into the device. The filter chamber is connected to the inlet pipe and contains a funnel-shaped filter. The chamber locking chuck connects the liquid collection chamber and the filter chamber. The chamber locking chuck is connected to the swivel locking element. The locking mechanism is used to enable quick assembly and disassembly of the liquid collection chamber. The top of the filter screen chamber is connected to the filter element fixing chamber, which can install filter element A and filter element B. The air pipe is connected to the filter element fixing chamber. The safety pressure relief valve is connected to the air pipe and the bottom passage of the filter screen support base. The filter screen support base supports the filter screen. The filter screen fixing plate is connected to the desulfurization chamber and fixes the filter screen. The top of the desulfurization chamber is connected to the exhaust valve. The top of the filter element fixing chamber is connected to the hydrogen sulfide gas detector, which is equipped with an alarm light.
2. The sampling test valve according to claim 1, characterized in that, The funnel-shaped filter screen has uniformly arranged pores on its surface. The funnel-shaped filter screen is used to filter moisture in crude oil associated gas, so that the moist crude oil associated gas containing moisture can be condensed into liquid water droplets by the funnel-shaped filter screen and flow into the liquid collection chamber through the bottom of the funnel-shaped filter screen and the pores.
3. A sampling test valve according to claim 1, characterized in that, The filter elements A and B are installed in the slotted positions of the filter element fixing cavity. Filter elements A and B are used to further filter impurities associated with crude oil.
4. A sampling test valve according to claim 1, characterized in that, The filter screen is located at the bottom of the desulfurization chamber. The filter screen is fixed by a filter screen fixing plate and a filter screen support base. The filter screen is used to prevent iron oxide desulfurizing agent particles from falling into the safety pressure relief valve and to provide a passage for crude oil associated gas to enter the desulfurization chamber.
5. A sampling test valve according to claim 1, characterized in that, The hydrogen sulfide gas detector is connected to the top of the filter element fixing cavity. The hydrogen sulfide gas detector is equipped with an alarm light. When the hydrogen sulfide gas detector detects the presence of hydrogen sulfide gas in the associated gas of crude oil, the alarm light will illuminate.
6. A sampling test valve according to claim 1, characterized in that, The desulfurization chamber is filled with iron oxide desulfurizing agent, which is in the form of large particles. The iron oxide desulfurizing agent can adsorb sulfur-containing compounds in the associated gas of crude oil into the iron oxide desulfurizing agent, thereby achieving the removal of hydrogen sulfide gas.