Multifunctional sampling valve
By designing a multifunctional sampling valve, and utilizing a funnel-type filter and iron oxide desulfurizing agent, real-time desulfurization of associated gases from crude oil is achieved. This solves the problems of poor timeliness and bulky equipment in traditional desulfurization methods, and improves the safety and equipment adaptability in the oil well environment.
Patent Information
- Application Number
- CN202520342320.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-28
AI Technical Summary
During oil well extraction, the high toxicity, flammability, explosiveness, and corrosiveness of hydrogen sulfide gas threaten safety. Traditional desulfurization methods suffer from poor timeliness, high leakage risk, and bulky equipment, making them difficult to adapt to the complex environment at the wellhead.
A multifunctional sampling valve is designed, comprising an air inlet pipe, a filter chamber, a funnel-shaped filter, a chamber locking chuck, a union locking element, a liquid collection chamber, a filter element fixing chamber, a filter element, an air pipe, a valve, a sealing connection plate, a filter support base, a filter element fixing plate, and a desulfurization chamber. The funnel-shaped filter filters moisture, the filter element filters impurities, and the iron oxide desulfurizing agent adsorbs hydrogen sulfide, thereby achieving real-time desulfurization.
It achieves compact, safe and efficient desulfurization of associated gases in crude oil in complex oil well environments, rapidly separates moisture and impurities, reduces the danger of hydrogen sulfide, and improves the adaptability and safety of the equipment.
Smart Images
Figure CN223854219U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oil and gas field safety technical field, concretely is a kind of multifunctional sampling valve. BACKGROUND
[0002] In the oil well exploitation process, hydrogen sulfide gas is highly toxic, flammable and explosive and strongly corrosive, threatening personnel safety and equipment life. The traditional method of desulfurization relies on subsequent treatment equipment, and has problems such as poor timeliness, high leakage risk and complicated process. In the prior art, the desulfurization link is separated, real-time response is difficult to achieve, and the equipment is heavy, which is difficult to adapt to the complex environment of wellhead. SUMMARY
[0003] To solve the above technical problems, a device for sustainable filtering of crude oil associated gas and desulfurization is provided, which is compact in structure and high in safety, and is suitable for complex oil well environment. The utility model adopts the following technical scheme.
[0004] A multifunctional sampling valve is composed of 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, filter element A, filter element B, air pipe A, a valve, air pipe B, a sealing connecting disc, a filter screen supporting base, a filter screen, a filter screen fixing disc, a desulfurization cavity and an exhaust valve. The air inlet pipe is the entrance of crude oil associated gas into the device. The filter screen cavity is connected to the air inlet pipe. The filter screen cavity is internally provided with a funnel filter screen. The cavity locking chuck is connected to the liquid collecting cavity and the filter screen cavity. The cavity locking chuck and the loose locking piece are combined to realize quick disassembly 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 be installed with filter element A and filter element B. The air pipe A is connected to the filter element fixing cavity. The valve is connected to the air pipe A and the air pipe B respectively. The air pipe B is connected to the sealing connecting disc. The sealing connecting disc is connected to the filter screen supporting base. The filter screen supporting base supports the filter screen. The filter screen fixing disc is connected to the desulfurization cavity and fixes the filter screen. The desulfurization cavity is connected to the exhaust valve at the top.
[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, so that the humid crude oil associated gas containing water is condensed into liquid water droplets through the funnel filter screen and flows into the liquid collecting cavity through the bottom and gas holes of the funnel filter screen.
[0006] Further, filter element A and filter element B are installed in the slotted position of the filter element fixing cavity, and 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. The filter screen is fixed by the filter screen fixing disc and the filter screen supporting base. The filter screen is used to prevent the iron oxide desulfurizer particles from falling into the air pipe B and to provide a passage for the crude oil associated gas to enter the desulfurization cavity.
[0008] 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 the sulfur compounds in the crude oil associated gas into the iron oxide desulfurizer, thereby removing the hydrogen sulfide gas.
[0009] The beneficial effects of the utility model are as follows: when the multifunctional sampling valve is connected to the crude oil associated gas pipeline, the crude oil associated gas flows into the filter screen cavity through the air inlet pipe, the moisture possibly contained in the crude oil associated gas is filtered by the funnel 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 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 and the loose locking piece are combined to realize the quick disassembly and assembly of the liquid collecting cavity, the quick disassembly and assembly of the liquid collecting cavity by the cavity locking chuck and the loose locking piece can quickly clean the moisture separation water in the crude oil associated gas in the liquid collecting cavity, the crude oil associated gas filtered by the funnel filter screen flows into the filter core fixing cavity, the impurities in the crude oil associated gas are filtered by the filter core A and the filter core B arranged in the filter core fixing cavity, the crude oil associated gas after filtering the impurities flows into the desulfurization cavity through the air pipe A, the valve passage, the air pipe B, the sealing connecting disc and the filter screen fixed by the filter screen supporting base, the sulfur compounds in the crude oil associated gas are adsorbed into the iron oxide desulfurizer in the desulfurization cavity by the iron oxide desulfurizer arranged in the desulfurization cavity, thereby removing the hydrogen sulfide gas, and the harmless associated gas after desulfurization is discharged through the exhaust valve arranged at the top of the desulfurization cavity, and the technical scheme provided by the utility model has the characteristics of compact structure, safety and high efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is a three-dimensional structure schematic diagram of a multifunctional sampling valve.
[0011] Figure 2 It is a sectional structure schematic diagram of a multifunctional sampling valve.
[0012] Figure 3 It is an explosion structure schematic diagram of a multifunctional sampling valve.
[0013] In the drawing: 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 core fixing cavity, 108-filter core A, 109-filter core B, 110-air pipe A, 111-valve, 112-air pipe B, 113-sealing connecting disc, 114-filter screen supporting base, 115-filter screen, 116-filter screen fixing disc, 117-desulfurization cavity, 118-exhaust valve. DETAILED DESCRIPTION
[0014] The utility model embodiment provides a multifunctional sampling valve,Figure 1 、 Figure 2 、 Figure 3 As shown in Fig. 1, the multifunctional sampling valve comprises an air inlet pipe 101, a filter screen cavity 102, a funnel filter screen 103, a cavity locking chuck 104, a loose locking piece 105, a liquid collecting cavity 106, a filter core fixing cavity 107, a filter core A 108, a filter core B 109, an air pipe A 110, a valve 111, an air pipe B 112, a sealing connecting disc 113, a filter screen supporting base 114, a filter screen 115, a filter screen fixing disc 116, a desulfurization cavity 117, and an exhaust valve 118. The air inlet pipe 101 is the entrance for crude oil associated gas into the device. The filter screen cavity 102 is connected with the air inlet pipe 101. The funnel filter screen 103 is arranged inside the filter screen cavity 102. The cavity locking chuck 104 is connected with the liquid collecting cavity 106 and the filter screen cavity 102. The cavity locking chuck 104 is combined with the loose locking piece 105 to realize quick disassembly and assembly of the liquid collecting cavity 106. The filter screen cavity 102 is connected with the filter core fixing cavity 107 at the top. The filter core fixing cavity 107 can be installed with the filter core A 108 and the filter core B 109. The air pipe A 110 is connected with the filter core fixing cavity 107. The valve 111 is connected with the air pipe A 110 and the air pipe B 112, respectively. The air pipe B 112 is connected with the sealing connecting disc 113. The sealing connecting disc 113 is connected with the filter screen supporting base 114. The filter screen supporting base 114 supports the filter screen 115. The filter screen fixing disc 116 is connected with the desulfurization cavity 117 and fixes the filter screen 115. The desulfurization cavity 117 is connected with the exhaust valve 118 at the top. The funnel filter screen 103 is in the shape of a funnel. The surface of the funnel filter screen 103 is uniformly arranged with air holes. The funnel filter screen 103 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 103 and flows into the liquid collecting cavity 106 through the bottom of the funnel filter screen 103 and the air holes. The filter core A 108 and the filter core B 109 are installed in the slotted position of the filter core fixing cavity 107. The filter core A 108 and the filter core B 109 are used to further filter the impurities in the crude oil associated gas. The filter screen 115 is arranged at the bottom of the desulfurization cavity 117. The filter screen 115 is fixed by the filter screen fixing disc 116 and the filter screen supporting base 114. The filter screen 115 is used to prevent the iron oxide desulfurizer particles from falling into the air pipe B 112 and provide a passage for the crude oil associated gas into the desulfurization cavity 117. The desulfurization cavity 117 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, thereby realizing removal of hydrogen sulfide gas.
[0015] The embodiment of the utility model is when a multifunctional sampling valve accesses crude oil associated gas pipeline, crude oil associated gas flows into filter screen cavity 102 through air inlet pipe 101, the wet gas possibly contained in crude oil associated gas is filtered by funnel type filter screen 103 arranged in filter screen cavity 102, the moisture in wet gas flows into liquid collecting cavity 106 after condensing on the air hole or bottom of funnel type filter screen 103, cavity locking chuck 104 connects liquid collecting cavity 106 and filter screen cavity 102, cavity locking chuck 104 and loose joint locking part 105 are combined to realize the quick disassembly of liquid collecting cavity 106, the quick disassembly of liquid collecting cavity 106 by cavity locking chuck 104 and loose joint locking part 105 can quickly clean the wet gas separation water in crude oil associated gas in liquid collecting cavity 106. The crude oil associated gas filtered by funnel type filter screen 103 flows into filter core fixing cavity 107, filter core A 108 and filter core B 109 arranged in filter core fixing cavity 107 are used to filter the impurities of crude oil associated gas, the crude oil associated gas after filtering the impurities flows into desulfurization cavity 117 through air pipe A 110, valve 111 passway, air pipe B 112, sealing connecting disc 113 and filter screen fixed disc 116 and the filter screen 115 fixed with filter screen supporting base 114, the sulfur compounds in crude oil associated gas are adsorbed into ferric oxide desulfurizer by the ferric oxide desulfurizer arranged in desulfurization cavity 117, thereby realizing the removal of hydrogen sulfide gas, the harmless associated gas after desulfurization is discharged through exhaust valve 118 arranged at the top of desulfurization cavity 117.
[0016] The above is the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the utility model.
Claims
1. A multi-functional sampling valve characterized by, The utility model relates to a desulfurization device for crude oil associated gas, which comprises 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, filter element A, filter element B, air pipe A, a valve, air pipe B, a sealing connecting disc, a filter screen supporting base, a filter screen, a filter screen fixing disc, a desulfurization cavity and an exhaust valve.
2. The multi-functional sampling valve according to claim 1, wherein The funnel filter screen is funnel-shaped in appearance and has uniformly arranged air holes on its surface. The funnel filter screen 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 and flows into the liquid collecting cavity through the bottom of the funnel filter screen and the air holes.
3. The multi-functional sampling valve according to claim 1, wherein The filter element A and the filter element B are installed in the slotted position of the filter element fixing cavity and are used to further filter the impurities in the crude oil associated gas.
4. The multi-functional sampling valve according to claim 1, wherein The filter screen is arranged at the bottom of the desulfurization cavity and is fixed by the filter screen fixing disc and the filter screen supporting base. The filter screen is used to prevent the iron oxide desulfurizer particles from falling into the air pipe B and to provide a passage for the crude oil associated gas to enter the desulfurization cavity.
5. The multi-functional sampling valve according to claim 1, wherein The desulfurization cavity is internally provided with iron oxide desulfurizer, which is in the form of large particles. The iron oxide desulfurizer can adsorb the sulfur compounds in the crude oil associated gas, thereby removing the hydrogen sulfide gas.