CN116222054A

CN116222054A - Duplex cooler for purifying high-purity oxygen

Info

Publication number: CN116222054A
Application number: CN202310126153.XA
Authority: CN
Inventors: 穆克; 游刚; 陆付杰; 周小伟; 杨威; 王春喜
Original assignee: Dongtai Hongren Gas Co ltd
Current assignee: Dongtai Hongren Gas Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-06

Abstract

The invention relates to the technical field of oxygen production equipment, and discloses a duplex cooler for purifying high-purity oxygen, which comprises a cooling pipe, a water diversion end cover and a heat radiation end cover, wherein two groups of end plates distributed left and right are fixedly connected to the inside of the cooling pipe, and the two groups of end plates are positioned at the position, close to an opening, of the cooling pipe. Through the inside flow direction heat dissipation end cover of each group's inlet tube run through the cooling tube, the liquid nitrogen is used for carrying out heat exchange with high temperature oxygen at the in-process that flows, lead to liquid nitrogen temperature to rise, make the multiple sets of refrigeration piece dispel the heat to the liquid nitrogen, the liquid nitrogen that is later cooled enters into the inside of wet return from the inside of heat dissipation end cover, flow to the bottom region that is located the division board of water diversion end cover after carrying out heat exchange with the high temperature oxygen of cooling tube again, then be discharged by the nitrogen discharge pipe, thereby carry out the secondary to storehouse liquid nitrogen and use, the consumption to the liquid nitrogen has been reduced, the cooling efficiency to the cooling tube has been promoted simultaneously.

Description

Duplex cooler for purifying high-purity oxygen

Technical Field

The invention relates to the technical field of oxygen production equipment, in particular to a duplex cooler for purifying high-purity oxygen.

Background

Coolers are a type of heat exchange device for cooling a fluid. Water or air is typically used as a coolant to remove heat. The cooling device can be mainly divided into a tube type cooler, a plate type cooler and an air-cooled cooler. The cooler is a heat exchange device commonly used in metallurgical, chemical, energy, traffic, light industry, food and other industrial departments.

When the existing duplex cooler is used, after liquid nitrogen is input through the input end, the liquid nitrogen is output by the output end in the process, so that the liquid nitrogen continuously absorbs heat of high-temperature gas, the existing device cannot cool the liquid nitrogen, and the utilization rate of the liquid nitrogen is low.

Disclosure of Invention

The invention provides a duplex cooler for purifying high-purity oxygen, which has the advantage of secondary utilization of liquid nitrogen, and solves the problems that when the existing duplex cooler is used, after the liquid nitrogen is input through an input end, the liquid nitrogen continuously absorbs heat of high-temperature gas in the process of being output by an output end, and the existing device cannot cool the liquid nitrogen, so that the utilization rate of the liquid nitrogen is lower.

The invention provides the following technical scheme: the utility model provides a high purity oxygen purification is with duplex cooler, includes cooling tube, water diversion end cover and radiating end cover, two sets of end plates that distribute about fixedly connected with on the inside of cooling tube, two sets of the end plates are located the cooling tube and are close to the opening part, a multiunit first spliced eye has been run through to one side of end plate, and multiunit first spliced eye inside fixedly grafting has multiunit inlet tube and multiunit wet return, the inlet tube is located the upper end of wet return, the left surface of cooling tube passes through bolt fixedly connected with water diversion end cover, fixedly connected with division board on the inner wall of water diversion end cover, the division board divides into upper and lower two parts with the inside of water diversion end cover, a side that the division board is close to the cooling tube and the laminating of the lateral surface middle part of one of them set of end plate, the multiunit the inlet tube is located the upper end of division board, multiunit the wet return is located the lower extreme of division board, a side that the cooling tube kept away from the water diversion end cover passes through bolt fixedly connected with radiating end cover, fixedly connected with multiunit piece on the outer wall of radiating end cover, multiunit the cooling fin is circumference array and distributes, and multiunit cooling fin is extended to its inside and radiating end cover.

Preferably, the nitrogen delivery pipe is fixedly connected with the upper portion of the left side face of the water diversion end cover, the nitrogen delivery pipe is communicated with the inside of the water diversion end cover, the nitrogen delivery pipe is located above the partition plate, the nitrogen discharge pipe is fixedly connected with the lower portion of the left side face of the water diversion end cover, the nitrogen discharge pipe is communicated with the inside of the water diversion end cover, and the nitrogen discharge pipe is located below the partition plate.

Preferably, the bearing hole has been run through in the right flank middle part of radiating end cover, the inside fixed watertight bearing that inlays of bearing hole, watertight bearing's inside rotates and is connected with the (mixing) shaft, the (mixing) shaft runs through the bearing hole and extends to radiating end cover's inside, the peripheral fixed cover in tip of (mixing) shaft is equipped with the stirring leaf, the stirring leaf is located radiating end cover's inside has, just radiating end cover is located between the multiunit refrigeration piece.

Preferably, the mounting table is fixedly connected to the outer side face of the heat dissipation end cover, the mounting table is located at the bottom of the stirring shaft, two groups of side ribs distributed front and back are fixedly connected to the bottom of the mounting table, the top of the mounting table is fixedly connected with the driving motor, the output shaft of the driving motor faces one side of the heat dissipation end cover, and the end part of the output shaft of the driving motor is fixedly connected with the outer end of the stirring shaft through the coupler.

Preferably, a gas pipe is fixedly connected to one side, close to the heat dissipation end cover, of the outer wall of the bottom of the cooling pipe, the gas pipe is communicated with the inside of the cooling pipe, an exhaust pipe is fixedly connected to one side, close to the water diversion end cover, of the outer wall of the top of the cooling pipe, and the exhaust pipe is communicated with the inside of the cooling pipe.

Preferably, the inner wall top fixedly connected with multiunit of cooling tube separates the fender, multiunit separate the fender and be located the inboard of two sets of end plates on the multiunit separate the fender one side of keeping off and run through and seted up multiunit second spliced eye, the outside at a plurality of group's inlet tube and wherein some wet return is all fixed to the cover in second spliced eye, the inner wall bottom fixedly connected with multiunit of cooling tube separates the fender down, separate the fender and separate the fender down and be crisscross distribution in proper order, and multiunit separate down and keep off and be located the inboard of two sets of end plates down, multiunit separate down and keep off one side of keeping off and run through and have seted up multiunit third spliced eye, multiunit third spliced eye is fixed the cover respectively and is established in multiunit wet return and wherein outside of partly inlet tube, separate and separate down and keep off down between be clearance fit.

Preferably, the outer wall top fixedly connected with a set of piezometer tube of cooling tube, piezometer tube and cooling tube's inside intercommunication, piezometer tube's top fixedly connected with electron barometer, piezometer tube's output and electron barometer's input intercommunication.

Preferably, the front surface of the outer wall and the back surface of the outer wall of the cooling pipe are fixedly connected with two groups of supporting seats which are distributed left and right, the number of the supporting seats is four, and the four groups of supporting seats are positioned on the inner sides of the water distribution end cover and the heat dissipation end cover.

The invention has the following beneficial effects:

1. this duplex cooler is used in high purity oxygen purification, pass through the inside that the nitrogen delivery pipe got into the water diversion end cover through outside liquid nitrogen, under the effect of division board, the unable direct lower part that gets into the water diversion end cover of liquid nitrogen, make the liquid nitrogen run through the inside flow direction heat dissipation end cover of cooling tube through each group's inlet tube, the in-process that liquid nitrogen is flowing is used for carrying out heat exchange with high temperature oxygen, lead to liquid nitrogen temperature to rise, make the multiple refrigeration piece dispel the heat to the liquid nitrogen, the liquid nitrogen that is later cooled enters into the inside of wet return from the inside of heat dissipation end cover, flow to the bottom region of division board of water diversion end cover after carrying out heat exchange with the high temperature oxygen of cooling tube again, then be discharged by the nitrogen discharge pipe, thereby carry out secondary use to the storehouse liquid nitrogen, the consumption to the liquid nitrogen has been reduced, the cooling efficiency to the cooling tube has been promoted simultaneously.

2. This duplex cooler is used in high purity oxygen purification through driving motor's output shaft drive (mixing) shaft rotation, and then drives stirring leaf and rotate for under the stirring effect of stirring leaf, improved the cooling rate to liquid nitrogen, and then promoted the radiating efficiency to high temperature gas.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the left side view of the present invention;

FIG. 3 is a schematic cross-sectional view of the right side view of the present invention;

FIG. 4 is a schematic view of the top and bottom separation plates according to the present invention;

fig. 5 is a schematic view of a partial enlarged structure of the invention a in fig. 3.

In the figure: 1. a cooling tube; 2. an end plate; 3. a water inlet pipe; 4. a water return pipe; 5. a water diversion end cover; 6. a heat-dissipating end cap; 7. a cooling sheet; 8. a watertight bearing; 9. a stirring shaft; 10. stirring the leaves; 11. a driving motor; 12. an upper separation barrier; 13. a lower partition; 14. a pressure measuring tube; 15. an electronic barometer; 16. a support base; 101. a gas pipe; 102. an exhaust pipe; 201. a first plug hole; 501. a partition plate; 502. a nitrogen delivery tube; 503. a nitrogen discharge pipe; 601. a bearing hole; 602. a mounting table; 603. side toughness; 1201. a second plug hole; 1301. and a third plug hole.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-5, a duplex cooler for purifying high purity oxygen comprises a cooling tube 1, a water diversion end cover 5 and a heat radiation end cover 6, wherein two groups of end plates 2 distributed left and right are fixedly connected on the inside of the cooling tube 1, the two groups of end plates 2 are positioned at the position, close to an opening, of the cooling tube 1, a plurality of groups of first plug holes 201 are penetrated and arranged on one side surface of the end plate 2, a plurality of groups of water inlet pipes 3 and a plurality of groups of water return pipes 4 are fixedly plugged in the first plug holes 201, the water inlet pipes 3 are positioned at the upper end of the water return pipes 4, the left side surface of the cooling tube 1 is fixedly connected with the water diversion end cover 5 through bolts, a partition plate 501 is fixedly connected on the inner wall of the water diversion end cover 5, the division board 501 is with dividing the inside of water distribution end cover 5 into upper and lower two parts, division board 501 is close to the lateral surface middle part laminating of cooling tube 1 and one of them a set of end plate 2, and the multiunit inlet tube 3 is located the upper end of division board 501, multiunit wet return 4 is located the lower extreme of division board 501, cooling tube 1 is kept away from the lateral surface of water distribution end cover 5 and is passed through bolt fixedly connected with heat dissipation end cover 6, fixedly connected with multiunit refrigeration piece 7 on the outer wall of heat dissipation end cover 6, multiunit refrigeration piece 7 is circumference array distribution, and multiunit refrigeration piece 7 runs through the outer wall of heat dissipation end cover 6 but extends to its inside, the inside of heat dissipation end cover 6 communicates with multiunit inlet tube 3 and multiunit wet return 4.

In this embodiment, the nitrogen pipe 502 is fixedly connected with the upper portion of the left side of the water diversion end cover 5, the nitrogen pipe 502 is communicated with the inside of the water diversion end cover 5, just the nitrogen pipe 502 is located above the partition plate 501, the nitrogen pipe 503 is fixedly connected with the lower portion of the left side of the water diversion end cover 5, the nitrogen pipe 503 is communicated with the inside of the water diversion end cover 5, and the nitrogen pipe 503 is located below the partition plate 501, liquid nitrogen enters the inside of the water diversion end cover 5 through the nitrogen pipe 502 from outside, liquid nitrogen cannot directly enter the lower portion of the water diversion end cover 5 under the action of the partition plate 501, so that liquid nitrogen flows into the inside of the cooling pipe 1 through each group of water inlet pipes 3, is used for carrying out heat exchange with high-temperature oxygen, and leads to the temperature rise of liquid nitrogen, so that the plurality of groups of refrigerating sheets 7 dispel the heat, then the cooled liquid nitrogen enters the inside of the water return pipe 4 from the inside of the heat dissipation end cover 6, flows into the bottom of the water diversion end cover 5 through the outside liquid nitrogen pipe 502, and then the liquid nitrogen enters the bottom of the water diversion end cover 5 through the partition plate 501, and the cooling reservoir is cooled by the cooling pipe 1, and the cooling reservoir is cooled by the cooling tank is lowered, and the cooling efficiency is lowered, and the cooling tank is cooled down by the cooling tank is cooled down.

In this embodiment, the bearing hole 601 has been run through in the right flank middle part of radiating end cover 6, the inside fixed watertight bearing 8 that has inlayed of bearing hole 601, the inside rotation of watertight bearing 8 is connected with (mixing) shaft 9, (mixing) shaft 9 runs through bearing hole 601 and extends to the inside of radiating end cover 6, the peripheral fixed cover in tip of (mixing) shaft 9 is equipped with stirring leaf 10, stirring leaf 10 is located the inside of radiating end cover 6 has, just radiating end cover 6 is located between the multiunit refrigeration piece 7.

In this embodiment, fixedly connected with mount table 602 on the lateral surface of radiating end cover 6, mount table 602 is located the bottom of (mixing) shaft 9, the bottom fixedly connected with of mount table 602 is two sets of side toughers 603 that distribute around, the top fixedly connected with driving motor 11 of mount table 602, driving motor 11's output shaft is towards one side of radiating end cover 6, just driving motor 11's output shaft tip passes through shaft coupling and the outer end fixed connection of (mixing) shaft 9, through driving motor 11's output shaft drive (mixing) shaft 9 rotation, and then drives stirring leaf 10 rotation for under the stirring effect of stirring leaf 10, improved the cooling rate to the liquid nitrogen, and then promoted the radiating efficiency to high temperature gas.

In this embodiment, one side fixedly connected with gas-supply pipe 101 that is close to heat dissipation end cover 6 on the bottom outer wall of cooling tube 1, gas-supply pipe 101 communicates with the inside of cooling tube 1, one side fixedly connected with blast pipe 102 that is close to water diversion end cover 5 on the top outer wall of cooling tube 1, blast pipe 102 communicates with the inside of cooling tube 1, through being connected gas-supply pipe 101 with the output of oxygenerator to and with blast pipe 102 with collecting vessel's input, make the high temperature gas of oxygenerator's output enter into the inside of cooling tube 1 through gas-supply pipe 101, output from blast pipe 102 after being cooled down, and then collected and stored by collecting vessel.

In this embodiment, the inner wall top of the cooling tube 1 is fixedly connected with a plurality of groups of upper separation baffles 12, a plurality of groups of upper separation baffles 12 are located at the inner sides of two groups of end plates 2, a plurality of groups of second plug holes 1201 are formed in a penetrating manner in one side of each upper separation baffle 12, the second plug holes 1201 are fixedly sleeved outside a plurality of groups of water inlet pipes 3 and a part of water return pipes 4, a plurality of groups of lower separation baffles 13 are fixedly connected to the bottom of the inner wall of the cooling tube 1, the lower separation baffles 13 and the upper separation baffles 12 are sequentially distributed in a staggered manner, a plurality of groups of lower separation baffles 13 are located at the inner sides of the two groups of end plates 2, a plurality of groups of lower separation baffles 13 are formed in a penetrating manner in a plurality of groups of third plug holes 1301, a plurality of groups of third plug holes 1301 are fixedly sleeved outside a plurality of groups of water return pipes 4 and a part of water inlet pipes 3, high-temperature oxygen is input into the cooling tube 1 through the upper separation baffles 12 and the lower separation baffles 13 in a clearance fit manner, and gas is separated from the inner side of the cooling tube 1 through the upper separation baffles 12 and the lower separation baffles 13, so that the gas can flow in the cooling tube 1 more thoroughly, and the cooling gas can flow in the cooling tube is cooled down.

In this embodiment, a group of pressure measuring pipes 14 are fixedly connected to the top of the outer wall of the cooling pipe 1, the pressure measuring pipes 14 are communicated with the inside of the cooling pipe 1, an electronic barometer 15 is fixedly connected to the top of the pressure measuring pipes 14, the output end of the pressure measuring pipes 14 is communicated with the input end of the electronic barometer 15, and the input end of the electronic barometer 15 is communicated with the inside of the cooling pipe 1 through the pressure measuring pipes 14, so that the air pressure inside the cooling pipe 1 is detected.

In this embodiment, the front surface of the outer wall and the back surface of the outer wall of the cooling tube 1 are fixedly connected with two groups of supporting seats 16 distributed left and right, the number of the supporting seats 16 is four, and the four groups of supporting seats 16 are located on the inner sides of the water diversion end cover 5 and the heat dissipation end cover 6, and the supporting seats 16 are arranged to facilitate fixing the cooler, so that the service stability of the cooler is improved.

During operation, the nitrogen delivery pipe 502 is in butt joint with the output end of an external pressure pump, the nitrogen discharge pipe 503 is in butt joint with the input end of an external sewer pipe, the gas delivery pipe 101 is connected with the output end of an oxygen generating device, the exhaust pipe 102 is connected with the input end of a collecting container, during operation, the driving motor 11 is started firstly, the output shaft of the driving motor drives the stirring shaft 9 to rotate, and then the stirring blade 10 is driven to rotate, high-temperature oxygen is input into the cooling pipe 1 through the gas delivery pipe 101, the gas passes through the upper separation baffles 12 of each group and the lower separation baffles 13 of each group, the flow stroke of the gas in the cooling pipe 1 is prolonged, then external liquid nitrogen enters the inside of the water distribution end cover 5 through the nitrogen delivery pipe 502, under the action of the separation plate 501, liquid nitrogen cannot directly enter the lower part of the water distribution end cover 5, so that the liquid nitrogen passes through the inside of the cooling pipe 1 flows to the inside of the cooling end cover 6 through each group of the water inlet pipe 3, the liquid nitrogen is used for heat exchange with the high-temperature oxygen in the flowing process, the liquid nitrogen temperature rises, the group of the cooling plate 7 is used for carrying out liquid nitrogen exchange under the stirring action of the stirring blade 10, the temperature of the nitrogen is increased, the temperature is cooled down to the cooling pipe is cooled down inside the cooling pipe 1, the cooling pipe is cooled down by the cooling pipe 5, and then the cooling down area is cooled down by the cooling down by the liquid nitrogen is cooled down by the inside the cooling pipe 5, and the cooling pipe 5 is cooled down by the inside the cooling pipe 5, and the inside the cooling area is cooled down by the cooling water.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high purity oxygen purification is with duplex cooler, includes cooling tube (1), water diversion end cover (5) and heat dissipation end cover (6), its characterized in that: two groups of end plates (2) distributed left and right are fixedly connected to the inside of the cooling pipe (1), the two groups of end plates (2) are located at the position, close to the opening, of the cooling pipe (1), a plurality of groups of first inserting holes (201) are formed in a penetrating mode on one side face of the end plate (2), a plurality of groups of water inlet pipes (3) and a plurality of groups of water return pipes (4) are fixedly inserted into the first inserting holes (201), the water inlet pipes (3) are located at the upper ends of the water return pipes (4), a water distribution end cover (5) is fixedly connected to the left side face of the cooling pipe (1) through bolts, a partition plate (501) is fixedly connected to the inner wall of the water distribution end cover (5), the partition plate (501) divides the inside of the water distribution end cover (5) into an upper portion and a lower portion, one side face, close to the cooling pipe (1), of the partition plate (501) is attached to the middle portion of the outer side face of one group of the cooling pipe (2), the water inlet pipes (3) are located at the upper ends of the partition plate (501), the water return pipes (4) are located at the lower ends of the partition plate (501), the cooling pipe (1) are fixedly connected with cooling fins (6) through bolts, the cooling fins (6) are fixedly connected to the cooling fins (7) on the circumference of the cooling fins (6), and the plurality of groups of refrigerating sheets (7) penetrate through the outer wall of the heat dissipation end cover (6) and extend into the heat dissipation end cover, and the inside of the heat dissipation end cover (6) is communicated with the plurality of groups of water inlet pipes (3) and the plurality of groups of water return pipes (4).

2. The duplex cooler for purifying high purity oxygen according to claim 1, wherein: the nitrogen delivery pipe (502) is fixedly connected to the upper portion of the left side face of the water diversion end cover (5), the nitrogen delivery pipe (502) is communicated with the inside of the water diversion end cover (5), the nitrogen delivery pipe (502) is located above the separation plate (501), the nitrogen discharge pipe (503) is fixedly connected to the lower portion of the left side face of the water diversion end cover (5), the nitrogen discharge pipe (503) is communicated with the inside of the water diversion end cover (5), and the nitrogen discharge pipe (503) is located below the separation plate (501).

3. The duplex cooler for purifying high purity oxygen according to claim 1, wherein: the bearing hole (601) has been seted up in the right flank middle part of radiating end cover (6), the inside fixed watertight bearing (8) that has inlayed of bearing hole (601), the inside rotation of watertight bearing (8) is connected with (mixing) shaft (9), (mixing) shaft (9) run through bearing hole (601) and extend to the inside of radiating end cover (6), the peripheral fixed cover in tip of (mixing) shaft (9) is equipped with stirring leaf (10), stirring leaf (10) are located the inside of radiating end cover (6) have, just radiating end cover (6) are located between multiunit refrigeration piece (7).

4. The duplex cooler for purifying high purity oxygen according to claim 1, wherein: fixedly connected with mount table (602) on the lateral surface of radiating end cover (6), mount table (602) are located the bottom of (mixing) shaft (9), the bottom fixedly connected with of mount table (602) is two sets of side firmware (603) that distribute around, the top fixedly connected with driving motor (11) of mount table (602), the output shaft of driving motor (11) is towards one side of radiating end cover (6), just the output shaft tip of driving motor (11) passes through the outer fixed connection of shaft coupling and (mixing) shaft (9).

5. The duplex cooler for purifying high purity oxygen according to claim 1, wherein: one side of cooling tube (1) on the bottom outer wall near radiating end cover (6) fixedly connected with gas-supply pipe (101), gas-supply pipe (101) communicate with the inside of cooling tube (1), one side of cooling tube (1) on the top outer wall near water diversion end cover (5) fixedly connected with blast pipe (102), blast pipe (102) communicate with the inside of cooling tube (1).

6. The duplex cooler for purifying high purity oxygen according to claim 1, wherein: the cooling tube (1) inner wall top fixedly connected with multiunit separates fender (12), multiunit separate fender (12) and be located the inboard of two sets of end plates (2) on the multiunit separate fender (12) one side run through and seted up multiunit second spliced eye (1201), outside at a plurality of sets of inlet tube (3) and wherein some wet return (4) are all fixed to cover to second spliced eye (1201), the inner wall bottom fixedly connected with multiunit of cooling tube (1) separates fender (13) down, separate fender (13) and last fender (12) and be the crisscross distribution in proper order down, and multiunit separate fender (13) down and be located the inboard of two sets of end plates (2), multiunit separate fender (13) a side and run through and set up multiunit third spliced eye (1301), multiunit third spliced eye (1301) are fixed the cover respectively and are established in the outside of multiunit wet return (4) and inlet tube (3) wherein some, separate fender (13) down and are clearance fit down.

7. The duplex cooler for purifying high purity oxygen according to claim 1, wherein: the cooling tube (1) is characterized in that a group of pressure measuring tubes (14) are fixedly connected to the top of the outer wall of the cooling tube (1), the pressure measuring tubes (14) are communicated with the inside of the cooling tube (1), an electronic barometer (15) is fixedly connected to the top of the pressure measuring tubes (14), and the output end of the pressure measuring tubes (14) is communicated with the input end of the electronic barometer (15).

8. The duplex cooler for purifying high purity oxygen according to claim 1, wherein: the cooling tube is characterized in that two groups of supporting seats (16) distributed left and right are fixedly connected to the front surface and the back surface of the outer wall of the cooling tube (1), the number of the supporting seats (16) is four, and the four groups of supporting seats (16) are positioned on the inner sides of the water diversion end cover (5) and the heat dissipation end cover (6).