CN213000671U

CN213000671U - Injection device for liquid nitrogen

Info

Publication number: CN213000671U
Application number: CN202021232456.8U
Authority: CN
Inventors: 赵利忠; 许丽丽; 吴子汶
Original assignee: Suzhou Huaye Gas Manufacturing Co ltd
Current assignee: Suzhou Huaye Gas Manufacturing Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-04-20
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses an injection apparatus for liquid nitrogen, including box, liquid nitrogen container, liquid nitrogen pump, a box inner bottom left side fixedly connected with mount pad, install a liquid nitrogen container in the mount pad, a liquid nitrogen container top fixedly connected with seals lid, a sealed overhead portion fixedly connected with extraction tube, a manometer is installed at the extraction tube top, the fixed just through connection in extraction tube right side has a cryostraw, install a valve on the cryostraw, cryostraw downwardly extending and a fixedly connected with liquid nitrogen pump, be provided with a pivot in the middle of the liquid nitrogen pump, a plurality of turbine blades have been cup jointed in the pivot, the terminal fixedly connected with second helical gear of pivot, second helical gear meshing is connected with first helical gear, a first helical gear bottom fixedly connected with rotor. The utility model discloses in, extract the liquid nitrogen through the liquid nitrogen pump and spray, the device is convenient for remove simultaneously, is applicable to multiple occasion and uses, and the practicality is strong.

Description

Injection device for liquid nitrogen

Technical Field

The utility model relates to a liquid nitrogen injection apparatus technical field especially relates to an injection apparatus for liquid nitrogen.

Background

The liquid nitrogen is inert, colorless, odorless, non-corrosive, non-combustible and extremely low-temperature liquid; nitrogen constitutes the majority of the atmosphere (78.03% by volume, 75.5% by weight); nitrogen is inactive and does not support combustion; liquid nitrogen is widely used in food refrigeration, metallurgical industry, scrubbing and shielding gases, in gas lasers, air-service equipment, power transmission and waste treatment.

At present, the fields of quick freezing, fire control and the like are frequently carried out by using liquid nitrogen, at the moment, a liquid nitrogen injection device is required to inject the liquid nitrogen, but most of the existing liquid nitrogen injection devices are heavy in size, inconvenient to move and difficult to adapt to various occasions.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing an injection device for liquid nitrogen.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an injection device for liquid nitrogen comprises a box body, a liquid nitrogen tank and a liquid nitrogen pump, wherein the left side of the inner bottom of the box body is fixedly connected with a mounting seat, the liquid nitrogen tank is arranged in the mounting seat, a sealing cover is fixedly connected above the liquid nitrogen tank, the top of the sealing cover is fixedly connected with an extraction tube, the top of the extraction tube is provided with a pressure gauge, the right side of the extraction tube is fixedly and penetratingly connected with a cryogenic tube, the cryogenic tube is provided with a valve, the cryogenic tube extends downwards and is fixedly connected with the liquid nitrogen pump, a rotating shaft is arranged in the middle of the liquid nitrogen pump, a plurality of turbine blades are sleeved on the rotating shaft, the tail end of the rotating shaft is fixedly connected with a second helical gear, the second helical gear is meshed with a first helical gear, the bottom of the first helical gear is fixedly connected with a, on motor fixed connection to the bottom surface in the box, and with liquid nitrogen pump dislocation set, the fixed and through connection in liquid nitrogen pump right side has a connecting pipe, a connecting pipe right-hand member fixedly connected with pressurized box, the fixed and through connection in pressurized box top has an air conditioning convection tube, the air conditioning convection tube runs through the box top setting, and extends to the box outside, the fixed and through connection in pressurized box right side has an injection pipe, the injection pipe runs through the setting of box right side wall, and extends to the outside, an injection pipe end fixedly connected with shower nozzle.

As a further description of the above technical solution:

the door comprises a box body and is characterized in that a group of door shafts are arranged in two side walls of the box body, a box door is sleeved on each door shaft, a window is arranged on the box door corresponding to a pressure gauge, and a door handle is arranged on the box door.

As a further description of the above technical solution:

the top of the right side wall of the box body is fixedly connected with a hook, and the side wall of the injection pipe close to the spray head is also provided with the hook in a matched mode.

As a further description of the above technical solution:

four gyro wheels of bottom half fixedly connected with, and be the universal wheel.

As a further description of the above technical solution:

the injection pipe is made of corrugated pipe materials.

As a further description of the above technical solution:

the mounting seat is made of elastic materials.

As a further description of the above technical solution:

the turbine blade and the rotating shaft are subjected to low-temperature resistance treatment.

The utility model discloses following beneficial effect has:

1. the utility model effectively protects the personal safety of operators and reduces the potential safety hazard brought by liquid nitrogen leakage by additionally arranging the box body outside the injection device; simultaneously, this device is convenient to be removed, can be applicable to most occasions, such as fire control, pipelining etc. convenient operation, the practicality is strong.

2. The utility model discloses well compact structure does not occupy great volume, and operating personnel need not extravagant more physical power when the mobile device, has improved work efficiency, and the front end injection pipe adopts the universal pipe of ripple simultaneously, can freely adjust spray angle, convenient operation.

Drawings

Fig. 1 is a schematic structural diagram of an injection device for liquid nitrogen according to the present invention;

fig. 2 is a front view of an injection device for liquid nitrogen according to the present invention;

fig. 3 is a schematic diagram of a liquid nitrogen pump transmission structure of an injection device for liquid nitrogen according to the present invention.

Illustration of the drawings:

1. a box body; 2. a mounting seat; 3. a door shaft; 4. a liquid nitrogen tank; 5. a sealing cover; 6. an extraction tube; 7. a pressure gauge; 8. a cryostraw; 9. a valve; 10. a turbine blade; 11. a liquid nitrogen pump; 12. a cold air convection pipe; 13. hooking; 14. an injection pipe; 15. a spray head; 16. a pressurizing box; 17. a connecting pipe; 18. a motor; 19. a rotor; 20. a roller; 21. a window; 22. a door handle; 23. a box door; 24. a first helical gear; 25. a second helical gear; 26. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: an injection device for liquid nitrogen comprises a box body 1, a liquid nitrogen tank 4 and a liquid nitrogen pump 11, wherein the left side of the bottom in the box body 1 is fixedly connected with a mounting seat 2, the liquid nitrogen tank 4 is installed in the mounting seat 2, a sealing cover 5 is fixedly connected above the liquid nitrogen tank 4, the top of the sealing cover 5 is fixedly connected with an extraction pipe 6, the top of the extraction pipe 6 is provided with a pressure gauge 7, the right side of the extraction pipe 6 is fixedly and penetratingly connected with a cryogenic pipe 8, the cryogenic pipe 8 is provided with a valve 9, the cryogenic pipe 8 extends downwards and is fixedly connected with the liquid nitrogen pump 11, the middle of the liquid nitrogen pump 11 is provided with a rotating shaft 26, the rotating shaft 26 is sleeved with a plurality of turbine blades 10, the tail end of the rotating shaft 26 is fixedly connected with a second helical gear 25, the second helical gear 25 is meshed with a first helical gear 24, the bottom of the, motor 18 fixed connection is on the bottom surface in box 1, and with 11 dislocation sets of liquid nitrogen pump, 11 right sides of liquid nitrogen pump are fixed and the through connection has a connecting pipe 17, connecting pipe 17 right-hand member fixedly connected with

pressurization case

16, 16 top of pressurization case are fixed and the through connection has an air conditioning convection tube 12, air conditioning convection tube 12 runs through 1 top of box and sets up, and extend to 1 outside of box, 16 right sides of pressurization case are fixed and the through connection has an injection pipe 14, injection pipe 14 runs through 1 right side wall of box and sets up, and extend to the outside, 14 terminal fixedly connected with shower nozzle 15 of injection pipe.

All be provided with a set of door-hinge 3 in the 1 both sides wall of box, a chamber door 23 has all been cup jointed on the door-hinge 3, it is provided with a window 21 to correspond 7 departments of manometer on the chamber door 23, be provided with door handle 22 on the chamber door 23, a couple 13 of 1 right side wall top fixedly connected with of box, injection pipe 14 is close to 15 department lateral walls of shower nozzle and is supporting being provided with couple 13 equally, four gyro wheels 20 of 1 bottom fixedly connected with of box, and be the universal wheel, injection pipe 14 is the bellows material, mount pad 2 adopts elastic material to make, turbine blade 10, pivot 26 all is through resistant cryogenic treatment.

The working principle is as follows:

1. the device is moved to an area to be sprayed with liquid nitrogen, the valve is opened, the motor works simultaneously to drive the rotor to rotate with the first bevel gear, and the second bevel gear and the rotating shaft rotate together to drive the turbine blade to rotate through gear engagement to pump the liquid nitrogen into the right pressurizing tank.

2. And liquid nitrogen in the pressurizing box is sprayed out through the spray head through the right side spray pipe, after the operation is finished, the valve is closed, and residual liquid nitrogen in the pressurizing box is discharged out through the balance air pressure of the upper cold air convection pipe.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A jet apparatus for liquid nitrogen, comprising a tank body (1), a liquid nitrogen tank (4), a liquid nitrogen pump (11), characterized in that: the box body (1) is characterized in that a mounting seat (2) is fixedly connected to the left side of the bottom in the box body (1), a liquid nitrogen tank (4) is installed in the mounting seat (2), a sealing cover (5) is fixedly connected to the upper portion of the liquid nitrogen tank (4), an extraction pipe (6) is fixedly connected to the top of the sealing cover (5), a pressure gauge (7) is installed at the top of the extraction pipe (6), a cryogenic pipe (8) is fixedly and penetratingly connected to the right side of the extraction pipe (6), a valve (9) is installed on the cryogenic pipe (8), the cryogenic pipe (8) extends downwards and is fixedly connected with a liquid nitrogen pump (11), a rotating shaft (26) is arranged in the middle of the liquid nitrogen pump (11), a plurality of turbine blades (10) are sleeved on the rotating shaft (26), a second helical gear (25) is fixedly connected to the tail end of the rotating shaft (26), and a first, the bottom of the first helical gear (24) is fixedly connected with a rotor (19), the bottom of the rotor (19) is rotatably connected with a motor (18), the motor (18) is fixedly connected to the inner bottom surface of the box body (1), and is arranged in a staggered way with the liquid nitrogen pump (11), the right side of the liquid nitrogen pump (11) is fixedly and is connected with a connecting pipe (17) in a through way, the right end of the connecting pipe (17) is fixedly connected with a pressurizing box (16), the top of the pressurizing box (16) is fixedly and penetratingly connected with a cold air convection pipe (12), the cold air convection pipe (12) penetrates through the top of the box body (1), and extends to the outside of the box body (1), the right side of the pressure box (16) is fixedly and penetratingly connected with an injection pipe (14), the injection pipe (14) penetrates through the right side wall of the box body (1), and extends to the outside, and the tail end of the injection pipe (14) is fixedly connected with a spray head (15).

2. An injection device for liquid nitrogen according to claim 1, characterized in that: the door is characterized in that a group of door shafts (3) are arranged in two side walls of the box body (1), a box door (23) is sleeved on each door shaft (3), a window (21) is arranged on each box door (23) corresponding to the pressure gauge (7), and a door handle (22) is arranged on each box door (23).

3. An injection device for liquid nitrogen according to claim 1, characterized in that: the top of the right side wall of the box body (1) is fixedly connected with a hook (13), and the side wall of the spray pipe (14) close to the spray head (15) is also provided with the hook (13) in a matching manner.

4. An injection device for liquid nitrogen according to claim 1, characterized in that: the bottom of the box body (1) is fixedly connected with four idler wheels (20) which are universal wheels.

5. An injection device for liquid nitrogen according to claim 1, characterized in that: the injection pipe (14) is made of a corrugated pipe material.

6. An injection device for liquid nitrogen according to claim 1, characterized in that: the mounting seat (2) is made of elastic materials.

7. An injection device for liquid nitrogen according to claim 1, characterized in that: the turbine blade (10) and the rotating shaft (26) are subjected to low-temperature resistance treatment.