阅读说明：本技术 一种用于井下天然气的耐高温高压复合型脱硫剂及生产设备 (High-temperature and high-pressure resistant composite desulfurizer for underground natural gas and production equipment ) 是由 宋德臣 刘壬川 詹晓东 高志斗 于 2020-12-09 设计创作，主要内容包括：本发明提供一种用于井下天然气的耐高温高压复合型脱硫剂及生产设备,所述硫化氢脱除剂由以下质量百分数组分组成,38-75％三嗪、2-6％乙醇胺、2-15％α-磺基脂肪酸甲酯、0.008-1.5％聚天门冬氨酸和0.007-0.6％三氮唑,剩余组分为水,所述三氮唑为甲基苯并三氮唑或者甲基苯并三氮唑钠,所述三嗪为均三嗪、偏三嗪、连三嗪及其任意比例混合物。(The invention provides a high-temperature and high-pressure resistant composite desulfurizer for underground natural gas and production equipment, wherein the hydrogen sulfide remover comprises the following components, by mass, 38-75% of triazine, 2-6% of ethanolamine, 2-15% of alpha-sulfo fatty acid methyl ester, 0.008-1.5% of polyaspartic acid and 0.007-0.6% of triazole, the balance of water, the triazole is methyl benzotriazole or methyl benzotriazole sodium, and the triazine is s-triazine, s-triazine and a mixture of the s-triazine, the s-triazine and the s-triazine in any proportion.)

1. The high-temperature and high-pressure resistant composite desulfurizer for the underground natural gas is characterized in that the hydrogen sulfide remover comprises, by mass, 38-75% of triazine, 2-6% of ethanolamine, 2-15% of a-sulfo fatty acid methyl ester, 0.008-1.5% of polyaspartic acid and 0.007-0.6% of triazole, and the balance of water.

2. The high-temperature and high-pressure resistant composite desulfurizing agent for the downhole natural gas according to claim 1, wherein the triazole is methylbenzotriazole or methylbenzotriazole sodium.

3. The high-temperature and high-pressure resistant composite desulfurizing agent for the downhole natural gas according to claim 1, wherein the triazine is s-triazine, s-triazine and a mixture of s-triazine, s-triazine and s-triazine in any proportion.

4. The production equipment of the high-temperature and high-pressure resistant composite desulfurizer for producing the underground natural gas comprises a stirring shaft (1) and a motor (2), and is characterized by further comprising a balance assembly (3), a cleaning brush (4) and a connecting assembly (5), wherein a rotating shaft of the motor (2) is fixedly connected with the stirring shaft (1) through the connecting assembly (5), the connecting assembly (5) comprises a first connecting sleeve (501), a first connecting base plate (502), a second connecting base plate (503) (503) and a fixed shaft (504), the lower end of the rotating shaft of the motor (2) is fixedly connected with the first connecting base plate (502), the first connecting base plate (502) is perpendicular to the lower end face of the rotating shaft of the motor (2), and the second connecting base plate (503) (503) is perpendicular to the upper end face of the stirring shaft (1); a fixed shaft (504) is fixedly connected to the pair of first connecting seat plates (502), two ends of the fixed shaft (504) are respectively and fixedly connected to one first connecting seat plate (502), the second connecting seat plates (503) (503) are rotatably sleeved on the fixed shaft (504), and the second connecting seat plates (503) (503) are positioned between the pair of first connecting seat plates (502); a first through hole (505) is formed in the rotating shaft of the motor (2), a second through hole (506) is formed in the stirring shaft (1), a third through hole (507) corresponding to the first through hole (505) is formed in the first connecting sleeve (501), a fourth through hole (508) corresponding to the second through hole (506) is formed in the first connecting sleeve (501), and the rotating shaft of the motor (2) is fixedly connected with the stirring shaft (1) through the first connecting sleeve (501) and a bolt;

the balance assembly (3) comprises a fixed sleeve (301), an adjusting rod (302), an adjusting spring (303), a ball sleeve (304), a ball (305) and a second connecting sleeve (306), the second connecting sleeve (306) is arranged on the stirring shaft (1) through a bolt and the fixed sleeve (301), the second connecting sleeve (306) is fixedly connected with a pair of connecting plates, one end of the fixed sleeve (301) is fixedly connected with the connecting plates, and the fixed sleeve (301) is fixedly connected with the second connecting sleeve (306) through the connecting plates and the bolt; the fixing sleeve (301) is horizontally arranged, the adjusting rod (302) is sleeved inside the fixing sleeve (301) and can horizontally and freely slide along the fixing sleeve (301), one end of the adjusting rod (302) is located inside the fixing sleeve (301), the other end of the adjusting rod (302) is located outside the fixing sleeve (301), one end of the adjusting rod (302) located outside the fixing sleeve (301) is fixedly connected with a ball sleeve (304), and one end, away from the adjusting rod (302), of the ball sleeve (304) is embedded with a ball (305); the outer wall of the fixed sleeve (301) close to the adjusting rod (302) is provided with threads, the threaded area of the fixed sleeve (301) is in threaded connection with a nut, the fixed sleeve (301) and the adjusting rod (302) are further sleeved with an adjusting spring (303), one end of the adjusting spring (303) abuts against the nut, and the other end of the adjusting spring (303) abuts against the ball sleeve (304); the adjusting spring (303) is a compression adjusting spring (303); a fifth through hole (307) is formed in the adjusting rod (302), a sixth through hole (308) is formed in the area, close to the second connecting sleeve (306), of the fixing sleeve (301), a screw rod (309) is arranged in a matching mode between the fifth through hole (307) and the sixth through hole (308), the screw rod (309) penetrates through the fifth through hole (307) and the sixth through hole (308), a fastening nut (310) is further arranged in a matching mode on the screw rod (309), a limiting sleeve (311) is further fixedly connected to the fastening nut (310), and the limiting sleeve (311) is tightly contacted with the outer side face of the adjusting rod (302);

a pair of cleaning brushes (4) are further arranged on the pair of ball sleeves (304) positioned on the same side of the stirring shaft (1), a pair of connecting plates are fixedly connected to the lower side sleeves of the ball sleeves (304) positioned at higher positions, the pair of connecting plates fixedly connected to the lower sides of the ball sleeves (304) positioned at higher positions are vertically downward, a pair of connecting plates are fixedly connected to the upper sides of the ball sleeves (304) positioned at lower positions, the pair of connecting plates fixedly connected to the upper sides of the ball sleeves (304) positioned at lower positions are vertically upward, two ends of each cleaning brush (4) are respectively and fixedly connected with one connecting plate, each cleaning brush (4) is fixedly connected with the corresponding ball sleeve (304) through the connecting plates and bolts, the brush part of each cleaning brush (4) is flush with the outermost edge of each ball (305), and each cleaning brush (4) is parallel to the stirring shaft (1), the balance assemblies (3) are positioned at the same height, and the two pairs of balance assemblies (3) are spaced by 180 degrees.

5. The production equipment of the high temperature and high pressure resistant composite desulfurizing agent for downhole natural gas according to claim 4, wherein a pair of the cleaning brushes (4) is axisymmetric with respect to the center line of the stirring shaft (1).

6. The production equipment of the high-temperature and high-pressure resistant composite desulfurizing agent for the downhole natural gas according to claim 4, wherein the bolt penetrates through the first through hole (505) and the third through hole (507) and is in threaded connection with a nut to realize the fixed connection of the first connecting sleeve (501) and the rotating shaft of the motor (2).

7. The production equipment of the high-temperature and high-pressure resistant composite desulfurizing agent for the downhole natural gas according to claim 4, wherein the bolt penetrates through the through hole II (506) and the through hole IV (508) to form a threaded connecting nut so as to fixedly connect the connecting sleeve I (501) with the stirring shaft (1).

8. The production equipment of the high temperature and high pressure resistant composite desulfurizing agent for downhole natural gas according to claim 4, wherein the balls (305) are capable of 360 ° free rotation in the ball sleeve (304).

9. The production equipment of the high temperature and high pressure resistant composite desulfurizing agent for the downhole natural gas according to claim 4, wherein the outer wall of the rotating shaft of the motor (2) is in close contact with the inner wall of the connecting sleeve I (501), and the outer wall of the stirring shaft (1) is in close contact with the inner wall of the connecting sleeve I (501).

Technical Field

The invention belongs to the technical field of petroleum and natural gas exploitation, and particularly relates to a high-temperature and high-pressure resistant composite desulfurizer for underground natural gas and production equipment.

Background

Natural gas is used as a high-quality clean energy source, is widely applied in industrial production and urban resident life, and plays a very important role. China has abundant natural gas reserves, but the natural gas of China is accompanied by hydrogen sulfide. Hydrogen sulfide is a toxic substance, is gaseous at normal temperature, has strong corrosion to steel of drilling tools and wellhead devices, brings great potential safety hazards to production and personnel once leaked, and increases the production cost of natural gas. In order to ensure that the content of hydrogen sulfide in natural gas meets the national standard, the natural gas needs to be desulfurized. The prior patents CN101319608A and CN104212480B both disclose desulfurizing agents for desulfurization aboveground, but cannot be used for downhole operation; the stirring process in the process of producing the desulfurizer is a key step for preparing the desulfurizer with excellent performance, but the prior stirring equipment has the following technical problems in the use process: firstly, the stirring shaft may deviate in the stirring process; secondly, pollutants may be deposited on the inner wall of the reaction kettle, and the pollutants are solidified on the inner wall of the reaction kettle without being cleaned in time to form intractable stains; thirdly, when taking out from the reaction kettle, the existing stirring device needs to be pulled out in the vertical direction from the right above the reaction kettle, and the stirring device is inconvenient to take out and operate and is not suitable for the reaction kettle with the automatic cover opening function.

Disclosure of Invention

Aiming at the problems, the invention provides a high-temperature and high-pressure resistant composite desulfurizer for underground natural gas and production equipment, so as to solve the technical problems.

The production equipment of the high-temperature and high-pressure resistant composite desulfurizer for the underground natural gas comprises a stirring shaft and a motor, and further comprises a balance assembly, a cleaning brush and a connecting assembly;

the rotating shaft of the motor is fixedly connected with the stirring shaft through a connecting assembly, the connecting assembly comprises a first connecting sleeve, a first connecting seat plate, a second connecting seat plate and a fixed shaft, the lower end of the rotating shaft of the motor is fixedly connected with a first pair of connecting seat plates, the first pair of connecting seat plates are perpendicular to the lower end face of the rotating shaft of the motor, and the second connecting seat plate is perpendicular to the upper end face of the stirring shaft; a fixed shaft is fixedly connected to the first connecting seat plate, two ends of the fixed shaft are respectively and fixedly connected to the first connecting seat plate, the second connecting seat plate is rotatably sleeved on the fixed shaft, and the second connecting seat plate is located between the first connecting seat plates; a first through hole is formed in the rotating shaft of the motor, a second through hole is formed in the stirring shaft, a third through hole corresponding to the first through hole is formed in the first connecting sleeve, a fourth through hole corresponding to the second through hole is formed in the first connecting sleeve, and the rotating shaft of the motor and the stirring shaft are fixedly connected through the first connecting sleeve and a bolt;

the balance assembly comprises a fixed sleeve, an adjusting rod, an adjusting spring, a ball sleeve, a ball and a second connecting sleeve, the second connecting sleeve is arranged on the stirring shaft through a bolt and the fixed sleeve, a pair of connecting plates is fixedly connected to the second connecting sleeve, one end of the fixed sleeve is fixedly connected with a connecting plate, and the fixed sleeve is fixedly connected with the second connecting sleeve through the connecting plate and the bolt; the adjusting rod is sleeved inside the fixed sleeve and can horizontally and freely slide along the fixed sleeve, one end of the adjusting rod is positioned inside the fixed sleeve, the other end of the adjusting rod is positioned outside the fixed sleeve, one end of the adjusting rod, which is positioned outside the fixed sleeve, is fixedly connected with a ball sleeve, and one end of the ball sleeve, which is far away from the adjusting rod, is embedded with balls; the outer wall of the fixed sleeve, which is close to the adjusting rod, is provided with threads, the threaded area of the fixed sleeve is in threaded connection with a nut, the fixed sleeve and the adjusting rod are also sleeved with an adjusting spring, one end of the adjusting spring abuts against the nut, and the other end of the adjusting spring abuts against the ball sleeve; the adjusting and adjusting spring is a compression adjusting spring; a fifth through hole is formed in the adjusting rod, a sixth through hole is formed in the area, close to the second connecting sleeve, of the fixing sleeve, a screw rod is arranged in a matched mode with the fifth through hole and the sixth through hole, the screw rod penetrates through the fifth through hole and the sixth through hole, a fastening nut is further arranged in a matched mode on the screw rod, a limiting sleeve is further fixedly connected onto the fastening nut, and the limiting sleeve is tightly contacted with the outer side face of the adjusting rod;

the pair of ball sleeves positioned on the same side of the stirring shaft is also provided with a pair of cleaning brushes, the lower side sleeve of the ball sleeve positioned at a higher position is fixedly connected with a pair of connecting plates, the pair of connecting plates fixedly connected to the lower side of the ball sleeve positioned at the higher position are vertically downward, the upper side of the ball sleeve positioned at a lower position is fixedly connected with a pair of connecting plates, the pair of connecting plates fixedly connected to the upper side of the ball sleeve positioned at the lower position are vertically upward, two ends of each cleaning brush are respectively and fixedly connected with a connecting plate, each cleaning brush is fixedly connected with the ball sleeve through the connecting plates and bolts, the brush part of each cleaning brush is flush with the outermost edge end of each ball, and the cleaning brushes are parallel to the stirring shaft;

as a preferred technical scheme, the balance assemblies at the same height are two pairs, and the two pairs of balance assemblies are spaced by 180 degrees.

As a preferred technical scheme, the cleaning brush is axisymmetrical about the central axis of the stirring shaft.

As a preferred technical scheme, the bolt penetrates through the first through hole and the third through hole and is connected with the nut through threads, so that the first connecting sleeve is fixedly connected with the rotating shaft of the motor.

As a preferred technical scheme, the bolt penetrates through the second through hole and the fourth through hole and is connected with the nut through threads, so that the first connecting sleeve is fixedly connected with the stirring shaft.

Preferably, the balls are rotatable within the ball sleeve by 360 °.

As a preferred technical scheme, the outer wall of the rotating shaft of the motor is in close contact with the inner wall of the first connecting sleeve, and the outer wall of the stirring shaft is in close contact with the inner wall of the first connecting sleeve.

The high-temperature and high-pressure resistant composite desulfurizer for the underground natural gas comprises, by mass, 38-75% of triazine, 2-6% of ethanolamine, 2-15% of a-sulfo fatty acid methyl ester, 0.008-1.5% of polyaspartic acid and 0.007-0.6% of triazole, and the balance of water.

As a preferred technical scheme, the triazole is methyl benzotriazole or methyl benzotriazole sodium.

As a preferred technical scheme, the triazine is s-triazine, s-triazine and any proportion of the mixture thereof.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, by designing the balance assembly, intervention, limitation and elimination can be carried out when the stirring shaft is about to deviate, so that the deviation of the stirring shaft from a central line is avoided, the stable stirring process is ensured, and the stirring operation is safe. The ball can greatly reduce the friction between the balance assembly and the inner wall of the reaction kettle, so as to reduce the rotation driving force of the stirring shaft and reduce the friction loss of the inner wall of the reaction kettle; the fixed sleeve, the adjusting rod and the screw rod can realize the adjustment of the walking radius of the balance assembly, and further can be used in reaction kettles with different inner diameters, so that the application range is enlarged; through design adjusting spring and nut, can make ball cover tightly contact with the reation kettle inner wall constantly.

2. In the invention, by arranging the connecting assembly, the fixed connection between the rotating shaft of the motor and the stirring shaft can be realized, and the bending connection can also be realized; the top end of the fixed sleeve is fixedly connected with the rotating shaft of the motor through a bolt, and the other end of the fixed sleeve is fixedly connected with the stirring shaft through a bolt, so that the rotating shaft of the motor is fixedly connected with the stirring shaft, and the drive transmission is realized; a pair of connection bedplate I of terminal surface fixedly connected with under the axis of rotation of motor, the up end of (mixing) shaft is connected with connection bedplate II, rotate through the fixed axle between a pair of connection bedplate I and the connection bedplate II and connect, the axis of rotation and the (mixing) shaft that can realize the motor rotate to be connected, when dismantling fixed cover from the axis of rotation of motor and (mixing) shaft, when taking out motor and (mixing) shaft, need not extract motor and (mixing) shaft in vertical direction from reation kettle directly over, when the motor breaks away from reation kettle, can set up the motor slope, then extract reation kettle. The rotating shaft and the stirring shaft which are connected through the motor are connected in a rotating mode, so that the motor and the stirring shaft can be conveniently taken out in an integrated mode, and the stirring shaft is particularly suitable for a reaction kettle with an automatic kettle cover opening function.

3. According to the invention, the cleaning brush is arranged, the brush part of the cleaning brush is always in close contact with the inner wall of the reaction kettle, and the brush part of the cleaning brush can brush the inner wall of the reaction kettle at any time by driving the stirring shaft, so that stubborn stains caused by adhesion of solid substances such as products generated in the reaction and the like on the inner wall of the reaction kettle are avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a first perspective structure of the present invention;

FIG. 2 is a schematic view of a second perspective structure of the present invention;

FIG. 3 is a schematic view of a connecting structure of a stirring shaft, a connecting sleeve I and a stirring shaft of a motor in the invention;

FIG. 4 is a schematic view of a connecting structure of a stirring shaft, a first connecting seat plate, a second connecting seat plate and a motor in the invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4;

FIG. 6 is a schematic view of the mounting structure of the stirring shaft, the first connecting seat plate, the second connecting seat plate and the motor of the invention;

FIG. 7 is an enlarged view of the structure at B in FIG. 6;

FIG. 8 is a schematic view of a balancing assembly according to the present invention;

FIG. 9 is a schematic view of a balance assembly mounting structure according to the present invention;

FIG. 10 is a schematic view showing a structure of the ball housing and the cleaning brush according to the present invention.

The device comprises a stirring shaft 1, a motor 2, a balance assembly 3, a fixing sleeve 301, an adjusting rod 302, an adjusting spring 303, a ball sleeve 304, a ball 305, a second connecting sleeve 306, a fifth through hole 307, a sixth through hole 308, a screw 309, a fastening nut 310, a limiting sleeve 311, a cleaning brush 4, a connecting assembly 5, a first connecting sleeve 501, a first connecting seat plate 502, a second connecting seat plate 503, a fixed shaft 504, a first through hole 505, a second through hole 506, a third through hole 507 and a fourth through hole 508.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 10, in conjunction with the embodiments.

Example 1

Embodiment 1 introduces a high-temperature and high-pressure resistant composite desulfurizer for downhole natural gas and production equipment, as shown in fig. 1-2, comprising a stirring shaft 1 and a motor 2, wherein the production equipment further comprises a connecting assembly 5;

as shown in fig. 3-7, the rotation shaft of the motor 2 and the stirring shaft 1 are fixedly connected through a connection assembly 5, the connection assembly 5 includes a first connection sleeve 501, a first connection seat plate 502, a second connection seat plate 503503 and a fixed shaft 504, the lower end of the rotation shaft of the motor 2 is fixedly connected with a pair of first connection seat plates 502, the pair of first connection seat plates 502 is perpendicular to the lower end surface of the rotation shaft of the motor 2, and the second connection seat plate 503503 is perpendicular to the upper end surface of the stirring shaft 1; the first connecting seat plates 502 are fixedly connected with a fixing shaft 504, two ends of the fixing shaft 504 are respectively and fixedly connected to the first connecting seat plates 502, the second connecting seat plates 503503 are rotatably sleeved on the fixing shaft 504, and the second connecting seat plates 503503 are located between the first connecting seat plates 502; a first through hole 505 is formed in the rotating shaft of the motor 2, a second through hole 506 is formed in the stirring shaft 1, a third through hole 507 corresponding to the first through hole 505 is formed in the first connecting sleeve 501, a fourth through hole 508 corresponding to the second through hole 506 is formed in the first connecting sleeve 501, and a bolt penetrates through the first through hole 505 and the third through hole 507 to be in threaded connection with a nut so that the first connecting sleeve 501 is fixedly connected with the rotating shaft of the motor 2; the bolt penetrates through the second through hole 506 and the fourth through hole 508 to be in threaded connection with the nut, so that the first connecting sleeve 501 is fixedly connected with the stirring shaft 1; the outer wall of the rotating shaft of the motor 2 is tightly contacted with the inner wall of the connecting sleeve I501, and the outer wall of the stirring shaft 1 is tightly contacted with the inner wall of the connecting sleeve I501;

the compound desulfurizer prepared by the production equipment of the high temperature and high pressure resistant compound desulfurizer for downhole natural gas provided in embodiment 1 comprises, by mass, 38% of s-triazine, 2% of ethanolamine, 2% of a-sulfo fatty acid methyl ester, 0.008% of polyaspartic acid, and 0.007% of methylbenzotriazole, and the balance of water.

The working principle is as follows: the top end of the fixed sleeve 301 is fixedly connected with the rotating shaft of the motor 2 through a bolt, and the other end of the fixed sleeve 301 is fixedly connected with the stirring shaft 1 through a bolt, so that the rotating shaft of the motor 2 is fixedly connected with the stirring shaft 1, and the drive transmission is realized; the lower end face of the rotating shaft of the motor 2 is fixedly connected with a pair of first connecting seat plates 502, the upper end face of the stirring shaft 1 is connected with a second connecting seat plate 503, the first connecting seat plates 502 and the second connecting seat plates 503 are rotatably connected through a fixing shaft 504, and the rotating shaft of the motor 2 can be rotatably connected with the stirring shaft 1. When dismantling fixed cover 301 from motor 2's axis of rotation and (mixing) shaft 1, when taking out motor 2 and (mixing) shaft 1, need not extract motor 2 and (mixing) shaft 1 in vertical direction from reation kettle directly over, when motor 2 breaks away from reation kettle, can set up motor 2 slope, then extract reation kettle afterwards. The rotating shaft of the motor 2 and the stirring shaft 1 are connected in a rotating mode, so that the motor 2 and the stirring shaft 1 can be conveniently taken out in an integrated mode, and the stirring shaft is particularly suitable for a reaction kettle with an automatic kettle cover opening function.

Example 2

Embodiment 2 is an improvement on the basis of embodiment 1, as shown in fig. 8-9, two pairs of balance assemblies 3 located at the same height are provided, the two pairs of balance assemblies 3 are spaced by 180 degrees, each balance assembly 3 comprises a fixed sleeve 301, an adjusting rod 302, an adjusting spring 303, a ball sleeve 304, a ball 305 and a second connecting sleeve 306, the second connecting sleeve 306 is arranged on the stirring shaft 1 through a bolt and the fixed sleeve 301, the second connecting sleeve 306 is fixedly connected with a pair of connecting plates, one end of the fixed sleeve 301 is fixedly connected with a connecting plate, and the fixed sleeve 301 and the second connecting sleeve 306 are fixedly connected through the connecting plate and the bolt; the fixing sleeve 301 is horizontally arranged, the adjusting rod 302 is sleeved inside the fixing sleeve 301, the adjusting rod 302 can horizontally and freely slide along the fixing sleeve 301, one end of the adjusting rod 302 is located inside the fixing sleeve 301, the other end of the adjusting rod 302 is located outside the fixing sleeve 301, one end of the adjusting rod 302 located outside the fixing sleeve 301 is fixedly connected with the ball sleeve 304, one end, away from the adjusting rod 302, of the ball sleeve 304 is embedded with the ball 305, and the ball 305 can freely rotate within 360 degrees in the ball sleeve 304; the outer wall of the fixed sleeve 301 close to the adjusting rod 302 is provided with threads, the threaded area of the fixed sleeve 301 is connected with a nut in a threaded mode, the fixed sleeve 301 and the adjusting rod 302 are further sleeved with an adjusting spring 303, one end of the adjusting spring 303 abuts against the nut, and the other end of the adjusting spring 303 abuts against the ball sleeve 304; the adjusting spring 303 is a compression adjusting spring 303; the adjusting rod 302 is provided with a fifth through hole 307, the area of the fixing sleeve 301, which is close to the second connecting sleeve 306, is provided with a sixth through hole 308, the fifth through hole 307 and the sixth through hole 308 are provided with a screw 309 in a matching manner, the screw 309 penetrates through the fifth through hole 307 and the sixth through hole 308, the screw 309 is also provided with a fastening nut 310 in a matching manner, the fastening nut 310 is also fixedly connected with a limiting sleeve 311, and the limiting sleeve 311 is tightly contacted with the outer side surface of the adjusting rod.

In this embodiment, the balls 305 have rolling friction with the inner wall of the reaction kettle during the walking process of the inner wall of the reaction kettle, so that the balls 305 can greatly reduce the friction between the balance assembly 3 and the inner wall of the reaction kettle, further reduce the rotational driving force of the stirring shaft 1, and reduce the friction loss of the inner wall of the reaction kettle; the fixed sleeve 301, the adjusting rod 302 and the screw 309 can adjust the walking radius of the balance assembly 3, and further can be used in reaction kettles with different inner diameters, so that the application range is enlarged; by designing the adjusting spring 303 and the nut, the ball sleeve 304 can be tightly contacted with the inner wall of the reaction kettle at any time.

The compound desulfurizer prepared by the production equipment of the high temperature and high pressure resistant compound desulfurizer for downhole natural gas provided in embodiment 2 comprises, by mass, 75% of meta-triazine, 6% of ethanolamine, 15% of a-sulfo fatty acid methyl ester, 1.5% of polyaspartic acid, and 0.6% of methylbenzotriazole sodium, and the balance of water.

Example 3

Embodiment 3 is an improvement on the basis of embodiment 2, as shown in fig. 10, a pair of cleaning brushes 4 are further disposed on a pair of ball sleeves 304 located on the same side of the stirring shaft 1, a pair of connecting plates are fixedly connected to lower side sleeves of the ball sleeves 304 located at higher positions, a pair of connecting plates fixedly connected to lower sides of the ball sleeves 304 located at higher positions are vertically downward, a pair of connecting plates are fixedly connected to upper sides of the ball sleeves 304 located at lower positions, a pair of connecting plates fixedly connected to upper sides of the ball sleeves 304 located at lower positions are vertically upward, two ends of each cleaning brush 4 are fixedly connected with a connecting plate, the cleaning brushes 4 are fixedly connected with the ball sleeves 304 through connecting plates and bolts, brush portions of the cleaning brushes 4 are flush with outermost edge ends of the balls 305, and the cleaning brushes 4 are parallel to the stirring shaft 1; the pair of cleaning brushes 4 is axisymmetrical with respect to the center line of the stirring shaft 1.

In the embodiment of the invention, the cleaning brush 4 is arranged, wherein the brush part of the cleaning brush 4 is always in close contact with the inner wall of the reaction kettle, and the brush part of the cleaning brush 4 can brush the inner wall of the reaction kettle at any time by driving the stirring shaft 1, so that the problem that solid substances such as products generated in the reaction and the like are attached to the inner wall of the reaction kettle to cause intractable stains is avoided.

The compound desulfurizer prepared by the production equipment of the high temperature and high pressure resistant compound desulfurizer for downhole natural gas provided in embodiment 3 comprises, by mass, 50% of triazine, 4% of ethanolamine, 8% of a-sulfo fatty acid methyl ester, 1.0% of polyaspartic acid, and 0.3% of methylbenzotriazole sodium, and the balance of water.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.