CN111732987B

CN111732987B - Natural gas cooling device with dehydration drying function

Info

Publication number: CN111732987B
Application number: CN202010874330.9A
Authority: CN
Inventors: 艾明刚; 周军; 王涛; 国敬
Original assignee: Shandong Haisheng Ocean Engineering Group Co ltd; Shengli Oilfield Huahai Petrochemical Co ltd
Current assignee: Shandong Haisheng Ocean Engineering Group Co ltd; Shengli Oilfield Huahai Petrochemical Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-04-20
Anticipated expiration: 2040-08-27
Also published as: CN111732987A

Abstract

The utility model provides a natural gas heat sink with dehydration drying function, including first spherical shell, the one end of one side fixed connection intake pipe of first spherical shell, the one end of the opposite side fixed connection outlet duct of first spherical shell, the inner of intake pipe and outlet duct is connected through several arc pole, the periphery of arc pole covers jointly has the barrier film, the inner wall of the equal fixed connection annular slab in periphery of intake pipe and outlet duct, be equipped with the spherical shell of second between first spherical shell and the barrier film, the equal opening in both sides and the fixed mounting sleeve of the spherical shell of second, the sleeve passes through sealed bearing with the annular slab that corresponds respectively and is connected. The device is used for separating natural gas from water, a plurality of sets of the device can be arranged according to different requirements, the other ends of the two exhaust pipes are connected into the air inlet pipe during continuous arrangement, and the pressure of the natural gas is used as the driving force for purification, so that the device is more energy-saving and environment-friendly.

Description

Natural gas cooling device with dehydration drying function

Technical Field

The invention belongs to the field of natural gas production, and particularly relates to a natural gas cooling device with a dehydration drying function.

Background

The presence of moisture in natural gas often has serious consequences, for example the presence of CO₂And H₂The natural gas of S forms acids in the presence of water to corrode pipelines and equipment. At present the mode of pressurization cooling relatively commonly used, can deviate from the water and partial heavy hydrocarbon in the natural gas in a large number, follow-up still need set up the adsorption tower and detach hydrogen sulfide etc. this just makes whole process line overlength, and the area that occupies is very big, and the use cost of equipment itself is also very high.

Disclosure of Invention

The invention provides a natural gas cooling device with a dehydration and drying function, which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

a natural gas cooling device with a dehydration drying function comprises a first spherical shell, one side of the first spherical shell is fixedly connected with one end of an air inlet pipe, the other side of the first spherical shell is fixedly connected with one end of an air outlet pipe, the inner ends of the air inlet pipe and the air outlet pipe are connected through a plurality of arc-shaped rods, the peripheries of the arc-shaped rods are jointly covered with a separation membrane, the peripheries of the air inlet pipe and the air outlet pipe are fixedly connected with the inner wall of an annular plate, a second spherical shell is arranged between the first spherical shell and the separation membrane, the two sides of the second spherical shell are respectively provided with an opening and fixedly provided with a sleeve, the sleeves are respectively connected with the corresponding annular plates through sealed bearings, the inner wall of each sleeve is fixedly provided with a plurality of blades, the two sides of the inner wall of the second spherical shell are fixedly provided with a plurality of poking sheets, the natural gas cooling device also comprises a discharging pipe, one end of the discharging, the upper side and the lower side of the material distributing pipe are respectively provided with a valve, the air outlet pipe is positioned between the two valves, the upper part and the lower part of one side of the material distributing pipe, which is far away from the air outlet pipe, are respectively and fixedly connected with one end of the air outlet pipe, the two ends of the material distributing pipe are respectively provided with a guide hole communicated with the interior of the material distributing pipe, a first connecting rod is arranged in the guide holes in a sliding way, the inner end of the first connecting rod is respectively and fixedly provided with a first piston, the periphery of the first connecting rod is respectively and fixedly provided with a spring, the two ends of the spring are respectively in contact fit with the inner wall end surface of the corresponding material distributing pipe and the end surface of the first piston, the outer end of the material distributing pipe is respectively provided with a through hole which is concentric with the liquid moving cylinder, second connecting rods are respectively and slidably arranged in the through holes, the second pistons are respectively and slidably matched with the liquid moving cylinders, the second pistons are respectively and, the middle part of third connecting rod all with the terminal surface swing joint of the branch material pipe that corresponds, move the one end of the equal fixed connection L type pipe in the inner of a liquid section of thick bamboo, move the one end of the equal fixed connection feed liquor pipe in the periphery of a liquid section of thick bamboo, all be equipped with the check valve on L type pipe and the feed liquor pipe, L type pipe all runs through the periphery of first spherical shell and fixed connection with it, the blade that the other end of L type pipe all corresponds towards, still include the liquid reserve tank of being connected with refrigerating unit, the other end of feed liquor pipe all is connected with the drain pipe of liquid reserve tank, the periphery of first spherical shell is connected to the feed liquor union coupling of liquid reserve tank, be equipped with the check valve on.

According to the natural gas cooling device with the dehydration and drying functions, the two ends of the material distribution pipe are fixedly connected with one end of the supporting rod, and the other end of the supporting rod is hinged with the middle of the corresponding third connecting rod.

According to the natural gas cooling device with the dehydration and drying functions, the sliding grooves are formed in the two ends of the third connecting rod, the sliding rods in sliding fit with the sliding grooves are arranged in the sliding grooves, and the outer ends of the first connecting rod and the second connecting rod are hinged to one ends corresponding to the sliding rods.

According to the natural gas cooling device with the dehydration and drying functions, the inner wall of one end of the exhaust pipe is fixedly provided with the plurality of valves.

According to the natural gas cooling device with the dehydration and drying functions, the U-shaped pipe is fixedly installed at the tail end of the liquid outlet pipe of the liquid storage box, and the other end of the liquid inlet pipe is fixedly connected with the corresponding end part of the U-shaped pipe.

According to the natural gas cooling device with the dehydration and drying functions, the blades are not parallel to the central line of the sleeve.

According to the natural gas cooling device with the dehydration and drying functions, the plurality of rows of shifting blocks are fixedly installed on the periphery of the second spherical shell.

The invention has the advantages that: the device is used for separating natural gas from water, a plurality of sets of the device can be arranged according to different requirements, the other ends of the two exhaust pipes are connected into the air inlet pipe during continuous arrangement, and the pressure of the natural gas is used as the driving force for purification, so that the device is more energy-saving and environment-friendly. The natural gas enters the separation membrane through the gas inlet pipe, water, carbon dioxide and a small amount of hydrogen sulfide enter the second spherical shell through the separation membrane, the contact area of the spherical structure of the separation membrane and the natural gas can be increased, the passing efficiency of acid components is improved, the dehydrated natural gas enters the material distribution pipe through the gas outlet pipe, two valves on the material distribution pipe are alternately switched, the diameter of the gas outlet pipe is smaller than that of the material distribution pipe, when one valve is opened, because the gas outlet pipe is blocked by the first piston under the action of the spring, the gas pressure in the material distribution pipe is gradually increased, when the gas pressure is larger than the friction force and the elastic force between the first piston and the gas outlet pipe, the first piston moves towards the end part of the material distribution pipe, the spring contracts, when the gas outlet pipe is not blocked by the first piston any more, the natural gas is conveyed to the next process through the corresponding gas outlet pipe, under the transmission of the third connecting rod, the second connecting rod and the first connecting rod can move reversely and synchronously, the second piston moves towards the L-shaped pipe, so that cooling liquid in the liquid transfer cylinder is sprayed to the blade through the L-shaped pipe, the sleeve can be driven to rotate under the action of the cooling liquid, the sleeve drives the second spherical shell to rotate, the cooling liquid is filled between the first spherical shell and the second spherical shell, separated water can be condensed, meanwhile, the poking piece rotates along with the second spherical shell to stir accumulated water in the poking piece, hydrogen sulfide is enabled to be dissolved into water to generate hydrogen sulfide solution, when the valve is closed, the first piston and the second piston are reset under the elastic action of the spring, the cooling liquid in the liquid storage tank is supplemented into the liquid transfer cylinder through the liquid inlet pipe, and the outer end of the discharge pipe can be connected with the pump body, so that the hydrogen sulfide can be discharged out of the first spherical shell. This device drives the sleeve through two sets of liquid removal section of thick bamboo in turn and rotates, and continuously supplyes the coolant liquid of cooling unit cooling in the liquid reserve tank, can make in the first spherical shell be in comparatively invariable and the lower state of temperature, under the circumstances of guaranteeing the aqueous vapor separation, reduces the recovery degree of difficulty of hydrogen sulfide, also helps simplifying or even saves follow-up process of absorbing hydrogen sulfide, has also reduced its harm that takes place to leak and cause, and the security improves greatly.

Drawings

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

Fig. 1 is a schematic structural view of the present invention.

Reference numerals: 1. the device comprises a first spherical shell, a second spherical shell, an air inlet pipe, a gas outlet pipe, a curved rod, a separating membrane, a first spherical shell, a second spherical shell, a sleeve, a vane, a shifting sheet, a discharge pipe, a material distributing pipe, a discharge pipe, a guide hole, a first connecting rod, a first piston, a spring, a liquid moving cylinder, a through hole, a second connecting rod, a third connecting rod, a sliding groove, a sliding rod, a valve, a separating rod, a liquid storage tank, a supporting rod, a sliding groove, a.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.

A natural gas cooling device with a dehydration drying function comprises a first spherical shell 1, one side of the first spherical shell 1 is fixedly connected with one end of an air inlet pipe 2, the other side of the first spherical shell 1 is fixedly connected with one end of an air outlet pipe 3, the air inlet pipe 2 and the air outlet pipe 3 are both inserted into the first spherical shell 1 and share a center line, the inner ends of the air inlet pipe 2 and the air outlet pipe 3 are connected through a plurality of arc-shaped rods 4, the two ends of the arc-shaped rods 4 are both fixedly connected by welding and the like, the arc-shaped rods 4 are uniformly distributed, the convex parts of the arc-shaped rods 4 face the inner wall of the first spherical shell 1, the periphery of the arc-shaped rods 4 is jointly covered with a separation membrane 5, the separation membrane 5 is of a spherical structure with openings at two sides and is fixedly connected with the peripheries of the air inlet pipe 2 and the air outlet pipe 3, the peripheries of the air inlet pipe 2 and the air outlet pipe 3 are both fixed on, the two sides of the second spherical shell 7 are both provided with openings and fixedly provided with sleeves 8, the sleeves 8 are communicated with the first spherical shell 1 and the second spherical shell 7, the air inlet pipe 2 and the air outlet pipe 3 both penetrate through the corresponding sleeves 8, the sleeves 8 are respectively connected with the corresponding annular plates 6 through sealed bearings, the inner walls of the sleeves 8 are both fixedly provided with a plurality of blades 9, the blades 9 are both positioned outside the annular plates 6, both sides of the inner wall of the second spherical shell 7 are both fixedly provided with a plurality of plectrums 10, the material distribution pipe also comprises a material distribution pipe 11, one end of the material distribution pipe 11 sequentially penetrates through the first spherical shell 1, one of the annular plates 6 extends into the bottom of the second spherical shell 7, the material distribution pipe 11 is fixedly connected with the first spherical shell 1 and the corresponding annular plate 6, the other end of the material distribution pipe 12 is fixedly arranged at the other end of the air outlet pipe 3, the upper and lower sides of the material distribution pipe 12 are both provided with valves, the upper part and the lower part of, the two valves are positioned between the two exhaust pipes 13, two ends of the distributing pipe 12 are respectively provided with a guide hole 14 communicated with the inner part, a first connecting rod 15 is arranged in each guide hole 14 in a sliding manner, the inner end of each first connecting rod 15 is fixedly provided with a first piston 16, the periphery of each first piston 16 is in contact fit with the inner wall of the distributing pipe 12 and can slide up and down, the periphery of each first connecting rod 15 is sleeved with a spring 17, two ends of each spring 17 are respectively in contact fit with the end surface of the inner wall of the corresponding distributing pipe 12 and the end surface of the corresponding first piston 16, a fixed connection mode can be adopted, the peripheral end part of each distributing pipe 12 is fixedly provided with a liquid moving cylinder 18, each liquid moving cylinder 18 is parallel to the distributing pipe 12, the outer end of each liquid moving cylinder 18 is provided with a through hole 19 sharing a central line with the through hole, a second connecting rod 20 is arranged in each through hole 19 in a sliding manner, each liquid moving cylinder 18 is provided with a second piston 31 in sliding fit with the corresponding second connecting rod 20, each second connecting rod 20 is movably connected with the outer end of the corresponding first connecting rod 15 through a third connecting rod 21, the middle part of each third connecting rod 21 is movably connected with the end face of the corresponding distributing pipe 12, the inner end of the liquid-moving cylinder 18 is fixedly connected with one end of an L-shaped pipe 22, the outer end of the liquid-moving cylinder 18 is fixedly connected with one end of a liquid-feeding pipe 23, one-way valves are arranged on the L-shaped pipe 22 and the liquid-feeding pipe 23 for circulating condensate, external condensate can only enter the liquid-moving cylinder 18 through the liquid-feeding pipe 23, condensate in the liquid-moving cylinder 18 is discharged through the L-shaped pipe 22, the L-shaped pipe 22 penetrates through the outer periphery of the first spherical shell 1 and is fixedly connected with the first spherical shell, the other end of the L-shaped pipe 22 faces to the corresponding blade 9, and the liquid storage tank 24 connected with the refrigerating unit is further included for storing condensate, the refrigerating unit is used for reducing the temperature of condensate, which is not described in detail herein for the prior art, the liquid inlet pipe of the liquid storage tank 24 is connected with the periphery of the first spherical shell 1, and the liquid inlet pipe is also provided with a one-way valve so that condensate in the first spherical shell 1 enters the liquid storage tank 24 through the liquid inlet pipe. The device is used for separating natural gas from water, a plurality of sets of the device can be arranged according to different requirements, the other ends of the two exhaust pipes 13 are connected into the air inlet pipe 2 during continuous arrangement, the pressure of the natural gas is used as a driving force for purification, and the device is more energy-saving and environment-friendly. The natural gas enters a separation membrane 5 through an air inlet pipe 2, water, carbon dioxide and a small amount of hydrogen sulfide in the natural gas enter a second spherical shell 7 through the separation membrane 5, the spherical structure of the separation membrane 5 can increase the contact area with the natural gas and improve the passing efficiency of acid components, the dehydrated natural gas enters a distributing pipe 12 through an air outlet pipe 3, two valves on the distributing pipe 12 are alternately switched, the diameter of the air outlet pipe 13 is smaller than that of the distributing pipe 12, when one valve is opened, because a first piston 16 blocks the air outlet pipe 13 under the action of a spring 17, the air pressure in the distributing pipe 12 is gradually increased, when the air pressure is larger than the friction force and the elastic force between the first piston 16 and the air outlet pipe 13, the first piston 16 moves towards the end part of the distributing pipe 12, the spring 17 contracts, and when the air outlet pipe 13 is not blocked by the first piston 16 any more, the natural gas is conveyed to the next process through the corresponding, the first piston 16 moves to drive the first connecting rod 15 to vertically move, under the transmission of the third connecting rod 21, the second connecting rod 20 and the first connecting rod 15 can reversely and synchronously move, so that the second piston 31 moves towards the L-shaped pipe 22, the cooling liquid in the liquid transfer cylinder 18 is sprayed to the blades 9 through the L-shaped pipe 22, under the action of the cooling liquid, the sleeve 8 can be driven to rotate, the sleeve 8 drives the second spherical shell 7 to rotate, the cooling liquid is filled between the first spherical shell 1 and the second spherical shell 7, separated water can be condensed, meanwhile, the stirring sheet 10 rotates along with the second spherical shell 7 to stir collected water in the stirring sheet, hydrogen sulfide is dissolved into water to generate hydrogen sulfide solution, when the valve is closed, under the elastic force of the spring 17, the first piston 16 and the second piston 31 both reset, the cooling liquid in the liquid storage tank 24 is supplemented into the liquid transfer cylinder 18 through the liquid storage pipe 23, the outer end of the discharge pipe 11 may be connected to a pump body so as to be able to discharge the hydrogen sulfuric acid out of the first spherical shell 1. This device drives sleeve 8 through two sets of liquid removal section of thick bamboo 18 in turn and rotates, and continuously supplyes the coolant liquid of cooling unit cooling in the liquid reserve tank 24, can make and be in comparatively invariable and the lower state of temperature in the first spherical shell 1, under the circumstances of guaranteeing the aqueous vapor separation, reduces the recovery degree of difficulty of hydrogen sulfide, also helps simplifying or even saves follow-up process of absorbing hydrogen sulfide, has also reduced its harm that takes place to leak and cause, and the security improves greatly.

Specifically, as shown in fig. 1, two ends of the material distributing pipe 12 according to this embodiment are both fixedly connected to one end of a supporting rod 25, and the other end of the supporting rod 25 is hinged to the middle of the corresponding third connecting rod 21. This structure can ensure that the position of the third link 21 is not deviated, thereby moving the first link 15 and the second link 20 in synchronization.

Specifically, as shown in fig. 1, the third link 21 of the present embodiment has two ends each provided with a sliding slot 26, the front and rear surfaces of the third link are communicated with the outside, the sliding slots 26 are each provided with a sliding rod 27 in sliding fit therewith, the sliding rods are both longitudinally arranged, and the outer ends of the first link 15 and the second link 20 are both hinged to one end corresponding to the sliding rod 27. This structure can accommodate the horizontal displacement generated during the turning of the third link 21 so as not to cause the first link 15 and the second link 20 to move only to a small extent.

Further, as shown in fig. 1, a plurality of valves 28 are fixedly mounted on an inner wall of one end of the exhaust pipe 13. This structure can avoid the gas reflux in blast pipe 13 to get into in the branch pipe 12.

Furthermore, as shown in fig. 1, a U-shaped pipe 29 is fixedly installed at the end of the liquid outlet pipe of the liquid storage tank 24 according to the embodiment, and the other end of the liquid inlet pipe 23 is fixedly connected to the corresponding end of the U-shaped pipe 29. To meet the need to feed both of the transfer cylinders 18 simultaneously.

Furthermore, as shown in fig. 1, the vanes 9 of this embodiment are not parallel to the center line of the sleeve 8. The purpose is to make the included angle between the blade 9 and the inner end of the L-shaped pipe 22 be a right angle or a nearly right angle, and can reduce useless consumption of condensate liquid kinetic energy.

Further, as shown in fig. 1, a plurality of rows of blocks 30 are fixedly mounted on the outer periphery of the second spherical shell 7 according to the present embodiment. This structure can stir the condensate when second spherical shell 7 rotates to can make the condensate in first spherical shell 1 more even with the heat transfer of natural gas.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a natural gas heat sink with dehydration drying function, includes first spherical shell (1), the one end of one side fixed connection intake pipe (2) of first spherical shell (1), the one end of the opposite side fixed connection outlet duct (3) of first spherical shell (1), its characterized in that: the inner ends of the air inlet pipe (2) and the air outlet pipe (3) are connected through a plurality of arc-shaped rods (4), the peripheries of the arc-shaped rods (4) are jointly covered with separation membranes (5), the peripheries of the air inlet pipe (2) and the air outlet pipe (3) are fixedly connected with the inner wall of the annular plate (6), a second spherical shell (7) is arranged between the first spherical shell (1) and the separation membranes (5), a plurality of rows of shifting blocks (30) are fixedly installed on the periphery of the second spherical shell (7), both sides of the second spherical shell (7) are respectively opened and fixedly installed with a sleeve (8), the sleeve (8) is respectively connected with the corresponding annular plate (6) through a sealing bearing, a plurality of blades (9) are fixedly installed on the inner wall of the sleeve (8), the blades (9) are not parallel to the central line of the sleeve (8), a plurality of shifting blocks (10) are fixedly installed on both sides of the inner wall of the second spherical, one end of a discharging pipe (11) penetrates through a first spherical shell (1) and one annular plate (6) in sequence and then extends into the bottom of a second spherical shell (7), the other end of an air outlet pipe (3) is fixedly provided with a material distributing pipe (12), the upper side and the lower side of the material distributing pipe (12) are respectively provided with a valve, the air outlet pipe (3) is positioned between the two valves, the upper part and the lower part of one side of the material distributing pipe (12) far away from the air outlet pipe (3) are respectively and fixedly connected with one end of an air outlet pipe (13), both ends of the material distributing pipe (12) are respectively provided with a guide hole (14) communicated with the interior of the material distributing pipe, a first connecting rod (15) is respectively and slidably arranged in the guide hole (14), a first piston (16) is respectively and fixedly arranged at the inner end of the first connecting rod (15), a spring (17) is sleeved on the periphery of the first connecting rod (15), both ends of the spring (17), the peripheral end parts of the distributing pipes (12) are fixedly provided with liquid moving cylinders (18), the outer ends of the liquid moving cylinders (18) are provided with through holes (19) which are concentric with the liquid moving cylinders, second connecting rods (20) are slidably arranged in the through holes (19), second pistons (31) which are in sliding fit with the liquid moving cylinders are arranged in the liquid moving cylinders (18), the second pistons (31) are fixedly connected with the inner ends of the corresponding second connecting rods (20), each second connecting rod (20) is movably connected with the outer end of the corresponding first connecting rod (15) through third connecting rods (21), the middle parts of the third connecting rods (21) are movably connected with the end surfaces of the corresponding distributing pipes (12), the inner ends of the liquid moving cylinders (18) are fixedly connected with one end of an L-shaped pipe (22), the peripheral inner ends of the liquid moving cylinders (18) are fixedly connected with one end of a liquid inlet pipe (23), one-way valves are arranged on the L-shaped pipes (22) and the liquid inlet pipe (23), and the L-shaped pipes (22) penetrate through the periphery of the first spherical shell (1) and are fixedly connected with, the other end of L type pipe (22) is all towards blade (9) that correspond, still includes liquid reserve tank (24) of being connected with refrigerating unit, and the other end of feed liquor pipe (23) all is connected with the drain pipe of liquid reserve tank (24), and the periphery of first spherical shell (1) is connected to the feed liquor pipe of liquid reserve tank (24), is equipped with the check valve on the feed liquor pipe.

2. The natural gas cooling device with the dehydration and drying function as claimed in claim 1, wherein: the two ends of the material distributing pipe (12) are fixedly connected with one end of a supporting rod (25), and the other end of the supporting rod (25) is hinged with the middle of a corresponding third connecting rod (21).

3. The natural gas cooling device with the dehydration and drying function according to claim 1 or 2, wherein: and sliding grooves (26) are formed in two ends of the third connecting rod (21), sliding rods (27) in sliding fit with the sliding grooves (26) are arranged in the sliding grooves (26), and the outer ends of the first connecting rod (15) and the second connecting rod (20) are hinged to one ends corresponding to the sliding rods (27).

4. The natural gas cooling device with the dehydration and drying function as claimed in claim 1, wherein: and a plurality of valves (28) are fixedly arranged on the inner wall of one end of the exhaust pipe (13).

5. The natural gas cooling device with the dehydration and drying function as claimed in claim 1, wherein: the tail end of the liquid outlet pipe of the liquid storage box (24) is fixedly provided with a U-shaped pipe (29), and the other end of the liquid inlet pipe (23) is fixedly connected with the corresponding end part of the U-shaped pipe (29).