CN213597936U - Wellhead sulfur removal system - Google Patents
Wellhead sulfur removal system Download PDFInfo
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- CN213597936U CN213597936U CN202022469480.XU CN202022469480U CN213597936U CN 213597936 U CN213597936 U CN 213597936U CN 202022469480 U CN202022469480 U CN 202022469480U CN 213597936 U CN213597936 U CN 213597936U
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Abstract
The utility model relates to a well head sulphur removal system. Well head sulphur removal system, including storing up medicine container and well head sulphur removal device, it is used for storing the sulphur removal agent to store up the medicine container, well head sulphur removal device includes: the gas collecting device comprises a shell, a gas collecting device and a gas collecting device, wherein the shell is provided with a gas inlet channel, a gas outlet channel and a medicament channel, the gas inlet channel is used for being communicated with a gas collecting tree, the gas outlet channel is used for being communicated with a natural gas station, and the medicament channel is communicated with a medicament storage container; the nozzle is arranged in the shell, the air inlet end of the nozzle is arranged at the inner end of the air inlet channel, and the air outlet end of the nozzle corresponds to the inner end of the air outlet channel; the center line of the air inlet channel is coincident with or parallel to the center line of the air outlet channel, and the inner end of the medicament channel is arranged between the inner end of the air inlet channel and the inner end of the air outlet channel. Because the sulfur removing agent enters between the inner end of the air inlet channel and the inner end of the air outlet channel by utilizing negative pressure, a conveying pump is omitted, and the sulfur removing cost is reduced.
Description
Technical Field
The utility model relates to a well head sulphur removal system.
Background
In the process of natural gas exploitation, part of hydrogen sulfide gas is usually mixed in natural gas, the hydrogen sulfide gas has corrosivity, and in the process of natural gas exploitation and transportation, equipment and pipelines are corroded to cause leakage of the natural gas and the hydrogen sulfide gas; and hydrogen sulfide is a highly toxic gas, and once leakage occurs, personal safety of field staff is harmed. Therefore, it is necessary to remove hydrogen sulfide from natural gas.
The Chinese utility model with the publication number of CN211141977U discloses a wellhead desulphurization system, which comprises a liquid storage container for storing a desulphurization agent; the spraying sulfur removal device is arranged on a natural gas conveying pipeline to remove hydrogen sulfide gas in the natural gas; the spraying sulfur removal device comprises a shell and a spraying unit, wherein the shell is provided with an air inlet, an air outlet and a medicament inlet, and the spraying unit is connected to the medicament inlet; and the delivery pump is used for delivering the desulfurizing agent in the liquid storage container to the spraying unit. Although the wellhead sulfur removal system removes hydrogen sulfide, a transfer pump and a wind-light complementary power supply unit are required to be arranged at a wellhead, and the sulfur removal cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a well head sulphur removal system to solve the higher technical problem of well head sulphur removal system cost when sulphur removal among the prior art.
In order to achieve the purpose, the utility model discloses well head sulphur removal system's technical scheme is:
well head sulphur removal system, including storing up medicine container and well head sulphur removal device, it is used for storing the sulphur removal agent to store up the medicine container, well head sulphur removal device includes:
the gas collecting device comprises a shell, a gas collecting device and a gas collecting device, wherein the shell is provided with a gas inlet channel, a gas outlet channel and a medicament channel, the gas inlet channel is used for being communicated with a gas collecting tree, the gas outlet channel is used for being communicated with a natural gas station, and the medicament channel is communicated with a medicament storage container;
the nozzle is arranged in the shell, the air inlet end of the nozzle is arranged at the inner end of the air inlet channel, and the air outlet end of the nozzle corresponds to the inner end of the air outlet channel;
the center line of the air inlet channel is coincident with or parallel to the center line of the air outlet channel, and the inner end of the medicament channel is arranged between the inner end of the air inlet channel and the inner end of the air outlet channel.
The beneficial effects are that: the high-pressure natural gas entering the gas inlet channel is throttled by the nozzle, the flow speed is increased to sonic speed or supersonic speed, and simultaneously, low pressure is formed at the gas outlet of the nozzle; under the action of negative pressure, a liquid sulfur removing agent in a liquid storage container enters between the inner end of the air inlet channel and the inner end of the air outlet channel from the agent channel and enters the air outlet channel along with natural gas, and the liquid sulfur removing agent is crushed into fine fog drops after being contacted with high-speed air flow flowing out of an air outlet of the nozzle so as to improve the contact area of the sulfur removing agent and hydrogen sulfide; because the sulfur removing agent enters the agent channel by utilizing negative pressure, a delivery pump is omitted, and the sulfur removing cost is reduced.
Furthermore, the air inlet channel, the air outlet channel and the medicament channel are arranged in a T shape.
The beneficial effects are that: the design is favorable for the sulfur removing agent to enter between the inner end of the air inlet channel and the inner end of the air outlet channel from the agent channel under the action of negative pressure.
Further, the nozzle is detachably fixed in the shell.
The beneficial effects are that: the maintenance and the overhaul of the nozzle are convenient.
Furthermore, a fixing nut is arranged in the air inlet channel and is pressed against the air inlet end of the nozzle, so that the nozzle can be detachably fixed in the shell.
The beneficial effects are that: by the design, the nozzle is convenient to disassemble and assemble.
Furthermore, a supporting cylinder is arranged between the inner end of the air inlet channel and the inner end of the air outlet channel, a liquid inlet hole is formed in the supporting cylinder, the liquid inlet hole is communicated with the inner end of the air outlet channel and the inner end of the medicament channel, and the supporting cylinder is used for supporting the nozzle when the fixing nut is screwed.
The beneficial effects are that: by the design, the supporting cylinder not only plays a supporting role, but also can centralize the nozzle, and the nozzle is prevented from inclining under larger pressure.
Furthermore, the air outlet channel is provided with a reducing section, a straight section and a diffusion section, and the reducing section, the straight section and the diffusion section are sequentially arranged along the air outlet direction.
The beneficial effects are that: ensuring the full contact reaction of the hydrogen sulfide and the desulfurizing agent and realizing the pressure rise after the reaction is finished.
Further, be equipped with the outlet duct in the casing, convergent section, straight section and diffusion section set up on the outlet duct.
The beneficial effects are that: the processing of the reducing section, the straight section and the diffusion section is facilitated.
Furthermore, the air outlet pipe is detachably fixed in the shell.
The beneficial effects are that: is beneficial to the maintenance and overhaul of the nozzle.
Further, the reducing section and the diffusing section are both conical structures.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment 1 of a wellhead sulfur removal system of the present invention;
FIG. 2 is a schematic structural view of the wellhead sulfur removal device of FIG. 1;
in the figure: 101-wellhead sulfur removal device; 102-a mixer; 103-gas production tree; 104-a drug storage container; 105-a bolus one-way valve; 106-natural gas station; 11-an air outlet channel; 12-an intake passage; 13-a medicament channel; 14-a diffusion section; 15-air outlet pipe; 16-a straight section; 17-a tapered section; 18-a support cylinder; 19-a nozzle; 20-fixing the nut; 21-liquid inlet hole; 22-housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the drawings and are only for convenience of description of the present invention, and do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses well head sulphur removal system's embodiment 1:
as shown in figure 1, the wellhead sulfur removal system comprises a wellhead sulfur removal device 101 and a medicine storage container 104, wherein the medicine storage container 104 is used for storing a sulfur removal agent, and a medicine inlet check valve 105 is arranged between the wellhead sulfur removal device 101 and the medicine storage container 104 so as to prevent the sulfur removal agent from flowing back into the medicine storage container 104. Wherein, the medicine storage container 104 is a medicine storage tank.
In this embodiment, the sulfur remover in the drug storage container 104 is a compound solution of a triazine sulfur remover, methanol, a foam remover and water, wherein the concentration of the triazine sulfur remover is 10-40%, the concentration of the methanol is 10-20%, the concentration of the foam remover is 0.3-0.5%, and the balance is water, and the sulfur remover can effectively remove hydrogen sulfide gas in natural gas.
As shown in fig. 2, the wellhead sulfur removal device 101 comprises a housing 22, wherein the housing 22 is provided with an air inlet channel 12, an air outlet channel 11 and a medicament channel 13; the gas inlet channel 12 is communicated with the gas production tree 103, the gas outlet channel 11 is communicated with the natural gas station 106, and the medicament channel 13 is communicated with the medicament storage container 104.
In this embodiment, the center line of the inlet channel 12 coincides with the center line of the outlet channel 11, and the inner end of the medicine channel 13 is disposed between the inner end of the inlet channel 12 and the inner end of the outlet channel 11. In other embodiments, the centerlines of the inlet channels and the outlet channels are arranged in parallel.
Preferably, the medicament channel 13 is arranged perpendicular to the inlet channel 12 and the outlet channel 11, i.e. the inlet channel 12 and the outlet channel 11 and the medicament channel 13 are arranged in a T-shape.
As shown in fig. 2, the gas outlet channel 11 has a tapered section 17, a straight section 16, and a diffuser section 14, and the tapered section 17, the straight section 16, and the diffuser section 14 are arranged in this order in the flow direction of the natural gas. Specifically, an air outlet pipe 15 is arranged in the shell 22, the air outlet pipe 15 is detachably fixed in the shell 22, the tapered section 17, the straight section 16 and the diffuser section 14 are all arranged on the air outlet pipe 15, namely the tapered section 17, the straight section 16 and the diffuser section 14 form a central hole of the air outlet pipe 15. Wherein, the tapered section 17 and the diffuser section 14 are both conical structures.
In the embodiment, the tapered section 17 adopts a tapered structure, so that the primary mixing of the high-pressure natural gas and the liquid desulfurizing agent is realized, and the gas at the outlet of the tapered section 17 reaches a certain pressure; the high pressure natural gas and the liquid sulfur removal agent are gradually mixed in the process of flowing through the straight section 16 and are fully mixed after flowing out from the outlet of the straight section 16. The diffuser section 14 is designed as a diverging structure that accomplishes the pressurization of the mixed fluid.
As shown in fig. 1, a mixer 102 is arranged between a wellhead sulfur removal device 101 and a natural gas station 106, a cavity of the mixer 102 is provided with a swirl blade and a rectifier blade, and the swirl blade and the rectifier blade are arranged along an air outlet direction, so that a mixed fluid entering the mixer 102 firstly passes through the swirl blade to further generate a disordered turbulent flow state, and further hydrogen sulfide and a sulfur removal agent are thoroughly mixed and contacted; then, the flow-rectifying blades are changed into an ordered stable flow state, so that the friction force and the shearing force between the fluids are reduced, and the purposes of reducing the pressure drop of the airflow and reducing the energy loss are achieved. Wherein the mixer is the existing mature technology.
As shown in fig. 2, a nozzle 19 is provided in the housing 22, an inlet end of the nozzle 19 is provided at an inner end of the inlet channel 12, and an outlet end of the nozzle 19 corresponds to an inner end of the outlet channel 11. The nozzle 19 has a tapered hole, the diameter of the tapered hole gradually decreases along the flowing direction of the natural gas, so that the air flow speed gradually increases, the pressure gradually decreases, and when the air flow speed reaches the air outlet of the nozzle 19, the air flow speed increases to a limit value, and the pressure decreases to a minimum value. In order to make the flow speed of the air flow at the air outlet of the nozzle 19 reach the sonic speed, the distance from the left end face of the nozzle 19 to the right end face of the air outlet pipe 15 is 0.6-0.8 times of the aperture of the air outlet of the nozzle 19.
In this embodiment, the nozzle 19 is removably secured within the housing 22 by a retaining nut 20. Specifically, a supporting cylinder 18 is arranged between the inner end of the air inlet channel 12 and the inner end of the air outlet channel 11, a liquid inlet hole 21 is formed in the supporting cylinder 18, and the liquid inlet hole 21 is communicated with the inner end of the air outlet channel 11 and the inner end of the medicament channel 13; the left end of the support cylinder 18 is supported on the outlet pipe 15, and the right end of the support cylinder 18 is supported on the nozzle 19 to support the nozzle 19 when the fixing nut 20 is tightened. In this embodiment, in order to ensure the sealing performance, sealing rings are respectively disposed between the support cylinder 18 and the outlet pipe 15, and between the support cylinder and the nozzle 19. Wherein, a plurality of liquid inlet holes 21 are arranged at intervals along the circumferential direction of the supporting cylinder 18 to ensure that sufficient sulfur removing agent enters the supporting cylinder 18 and further enters the gas outlet channel 11 to react with the hydrogen sulfide in the gas outlet channel 11.
During assembly, the air outlet pipe 15 is firstly installed into the shell 22 from the air inlet channel 12, and the air outlet pipe 15 is limited by the step stop in the shell 22; then the supporting cylinder 18 and the nozzle 19 are sequentially arranged in the shell 22; finally, the fixing nut 20 is screwed to press the fixing nut 20 against the air inlet end of the nozzle 19, so that the air outlet pipe 15, the support cylinder 18 and the nozzle 19 are detachably fixed in the housing 22.
In this embodiment, the inner wall surface of the right end of the support cylinder 18 is fitted to the outer circumferential surface of the nozzle 19 to center the nozzle 19 and prevent the nozzle 19 from tilting under a large pressure.
The working principle is as follows: after the high-pressure natural gas is throttled by the nozzle 19, the flow speed is increased to sonic speed or supersonic speed, and meanwhile, low pressure is formed at the air outlet of the nozzle 19; the liquid desulfurizing agent in the medicine storage container 104 is sucked into the supporting cylinder 18 through the medicine inlet one-way valve 105 under the action of negative pressure, and the liquid desulfurizing agent is crushed into fine fog drops after being contacted with high-speed air flow flowing out from an air outlet of the nozzle 19 so as to improve the contact area of the desulfurizing agent and hydrogen sulfide; then, the sufficient contact reaction of the sulfur removing agent and hydrogen sulfide gas is realized in the tapered section 17 and the straight section 16 of the gas outlet pipe 15 to remove the hydrogen sulfide; and finally, fluid pressure boosting is completed in the diffusion section 14, so that the mixed pressure is higher than the output pressure, and safe station-entering production is realized.
The wellhead sulfur removal system in the embodiment can greatly save the using amount of the sulfur removal agent, reduce the liquid carrying burden of the gas well and simultaneously improve the sulfur removal capacity and range; in addition, the wellhead desulphurization system is simple in structure, convenient to install on the ground, free of well killing operation, free of damage to a gas well, few in technical supporting equipment, extremely simplified in flow, improved in desulphurization efficiency and reduced in desulphurization cost.
At present, the wellhead sulfur removal system in the embodiment is mainly applied to the gas well containing 500-.
The utility model discloses well head sulphur removal system's embodiment 2:
the present embodiment differs from embodiment 1 in that in embodiment 1, the medicine passage 13 is disposed perpendicular to the inlet passage 12 and the outlet passage 11, that is, the inlet passage 12, the outlet passage 11, and the medicine passage 13 are arranged in a T-shape. In this embodiment, an included angle between the drug channel and the air inlet channel is an acute angle, and an included angle between the drug channel and the air outlet channel is an obtuse angle. In other embodiments, the medicament channel and the air inlet channel form an obtuse angle, and the medicament channel and the air outlet channel form an acute angle.
The utility model discloses well head sulphur removal system's embodiment 3:
the present embodiment is different from embodiment 1 in that in embodiment 1, a fixing nut 20 is disposed in the air inlet passage 12, and the fixing nut 20 presses against the air inlet end of the nozzle 19 to detachably fix the nozzle 19 in the housing 22. In this embodiment, be equipped with the screw thread on the outer peripheral face of nozzle, nozzle self threaded connection is in the casing to realize that the nozzle is removable fixes in the casing.
The utility model discloses well head sulphur removal system's embodiment 4:
the difference between this embodiment and embodiment 1 is that in embodiment 1, a support cylinder 18 is disposed between the inner end of the gas inlet channel 12 and the inner end of the gas outlet channel 11, a liquid inlet hole 21 is disposed on the support cylinder 18, and the liquid inlet hole 21 communicates the inner end of the gas outlet channel 11 and the inner end of the chemical channel 13; the left end of the support cylinder 18 is supported on the outlet pipe 15, and the right end of the support cylinder 18 is supported on the nozzle 19 to support the nozzle 19 when the fixing nut 20 is tightened. In this embodiment, the support cylinder is not provided, the inner wall surface of the air inlet passage is provided with a step, the step surface is used for supporting the nozzle when the fixing nut is screwed, and at this time, the air outlet pipe is fixedly arranged on the housing or the air outlet pipe and the housing are integrally formed.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. Well head sulphur removal system, including storing up medicine container and well head sulphur removal device, store up the medicine container and be used for storing the sulphur removal agent, its characterized in that, well head sulphur removal device includes:
the gas collecting device comprises a shell, a gas collecting device and a gas collecting device, wherein the shell is provided with a gas inlet channel, a gas outlet channel and a medicament channel, the gas inlet channel is used for being communicated with a gas collecting tree, the gas outlet channel is used for being communicated with a natural gas station, and the medicament channel is communicated with a medicament storage container;
the nozzle is arranged in the shell, the air inlet end of the nozzle is arranged at the inner end of the air inlet channel, and the air outlet end of the nozzle corresponds to the inner end of the air outlet channel;
the center line of the air inlet channel is coincident with or parallel to the center line of the air outlet channel, and the inner end of the medicament channel is arranged between the inner end of the air inlet channel and the inner end of the air outlet channel.
2. A wellhead sulfur removal system according to claim 1, wherein said gas inlet channel, gas outlet channel and chemical channel are arranged in a T-shape.
3. A wellhead sulfur removal system according to claim 1 or 2, wherein said nozzles are removably secured within a housing.
4. A wellhead sulfur removal system according to claim 3, wherein a retaining nut is provided in said inlet passage and bears against the inlet end of the nozzle to releasably secure the nozzle in the housing.
5. A wellhead sulfur removal system according to claim 4, wherein a support cylinder is arranged between the inner end of the gas inlet channel and the inner end of the gas outlet channel, a liquid inlet hole is formed in the support cylinder, the liquid inlet hole is communicated with the inner end of the gas outlet channel and the inner end of the chemical agent channel, and the support cylinder is used for supporting the nozzle when the fixing nut is screwed.
6. A wellhead sulfur removal system according to claim 1 or 2, wherein the gas outlet channel has a tapered section, a straight section and a diffuser section, which are arranged in sequence along the gas outlet direction.
7. A wellhead sulfur removal system according to claim 6, wherein an outlet pipe is provided in said housing, said tapered section, straight section and diffuser section being provided on said outlet pipe.
8. A wellhead sulphur removal system according to claim 7, wherein the outlet pipe is removably secured within the housing.
9. A wellhead sulfur removal system according to claim 6, wherein said tapered section and diffuser section are both of conical configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022469480.XU CN213597936U (en) | 2020-10-30 | 2020-10-30 | Wellhead sulfur removal system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022469480.XU CN213597936U (en) | 2020-10-30 | 2020-10-30 | Wellhead sulfur removal system |
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| CN213597936U true CN213597936U (en) | 2021-07-02 |
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| CN202022469480.XU Active CN213597936U (en) | 2020-10-30 | 2020-10-30 | Wellhead sulfur removal system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738309A (en) * | 2021-08-20 | 2021-12-03 | 四川华宇石油钻采装备有限公司 | Foam discharging device capable of putting foam discharging agent at normal pressure |
-
2020
- 2020-10-30 CN CN202022469480.XU patent/CN213597936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738309A (en) * | 2021-08-20 | 2021-12-03 | 四川华宇石油钻采装备有限公司 | Foam discharging device capable of putting foam discharging agent at normal pressure |
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