CN215411360U - Double-tower double-condensation large-volume liquid nitrogen device - Google Patents
Double-tower double-condensation large-volume liquid nitrogen device Download PDFInfo
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- CN215411360U CN215411360U CN202122208001.3U CN202122208001U CN215411360U CN 215411360 U CN215411360 U CN 215411360U CN 202122208001 U CN202122208001 U CN 202122208001U CN 215411360 U CN215411360 U CN 215411360U
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- holding vessel
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Abstract
The utility model discloses a double-tower double-condensation large-volume liquid nitrogen device which comprises a first storage tank and a second storage tank, wherein the second storage tank is arranged on the inner side of the first storage tank, the second storage tank and the first storage tank are coaxially arranged, a cold insulation layer is arranged between the first storage tank and the second storage tank, a pressing plate is arranged in the second storage tank, a guide rod is arranged on the upper side of the pressing plate, a cross beam is arranged at the other end of the guide rod, a telescopic mechanism is arranged on the upper surface of the first storage tank, and the other end of the telescopic mechanism is connected with the cross beam. Through setting up the clamp plate, can make and keep certain pressure in the container, can extrude the liquid nitrogen, solved the difficult exhaust problem of remaining liquid nitrogen in the container.
Description
Technical Field
The utility model belongs to the field of nitrogen making equipment, and particularly relates to a double-tower double-condensation large-volume liquid nitrogen device.
Background
Liquid nitrogen, liquid nitrogen. Is inert, colorless, odorless, non-corrosive, non-combustible and extremely low in temperature. Nitrogen constitutes the majority of the atmosphere (78.03% by volume, 75.5% by weight).
Nitrogen is inert and does not support combustion, and it is 78% of air. Under normal pressure, the temperature of liquid nitrogen is-196 ℃; 1 cubic meter of liquid nitrogen can be expanded to 696 cubic meters of pure gaseous nitrogen at 21 ℃. Liquid nitrogen is a colorless, odorless, low-temperature liquid and gas at high pressure. Liquid nitrogen (often written as LN 2), is a liquid form formed by nitrogen at low temperatures. The boiling point of nitrogen is-196 ℃, and liquid nitrogen is formed at normal atmospheric pressure if the temperature is below that; if pressurized, liquid nitrogen can be obtained at higher temperatures. In industry, liquid nitrogen is obtained by air fractionation. Air is purified, then liquefied under the environment of pressurization and cooling, and separated by the difference of boiling points of all components in the air.
The liquid nitrogen is required to be stored in a corresponding container after being prepared, the liquid nitrogen is taken out from the container during use, the liquid nitrogen is taken out by depending on the pressure in the container in the process of taking out a large amount of liquid nitrogen, the pressure in the container is reduced along with the reduction of the content of the liquid nitrogen in the container, and when the liquid nitrogen is reduced to a certain volume, the residual liquid nitrogen in the container is not easy to take out, so that the use efficiency of the container is reduced, and the industrial production efficiency is further reduced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a double-tower double-condensation large-volume liquid nitrogen device, which can keep a certain pressure in a container and press out liquid nitrogen by arranging a pressing plate, so that the problem that residual liquid nitrogen in the container is difficult to discharge is solved.
The utility model provides the following technical scheme:
the utility model provides a two bulky liquid nitrogen devices of condensation of two towers, includes first holding vessel and second holding vessel, the second holding vessel sets up the inboard at first holding vessel, second holding vessel and the coaxial setting of first holding vessel, be provided with the cold insulation layer between first holding vessel and the second holding vessel, be provided with the clamp plate in the second holding vessel, the upside of clamp plate is provided with the guide arm, the other end of guide arm is provided with the crossbeam, the upper surface of first holding vessel is provided with telescopic machanism, telescopic machanism's the other end and crossbeam are connected.
Preferably, the second storage tank is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are respectively provided with a corresponding one-way valve, and the liquid inlet pipe is connected with a liquid nitrogen outlet of the cooling tower.
Preferably, the axis of the first storage tank and the axis of the second storage tank are connected with a fixing sleeve together, and the guide rod is in sealing connection with the fixing sleeve.
Preferably, a connection pipe is provided at an upper side of the second storage tank, and the other end of the connection pipe is located at an outer side of the first storage tank.
Preferably, the guide rod is provided with a plurality of limiting holes in sequence along the axis direction, the limiting holes are uniformly arranged along the axis direction, and limiting rods are inserted in the limiting holes.
Preferably, the number of the telescopic mechanisms is two, and the two telescopic mechanisms are symmetrically arranged relative to the guide rod.
Preferably, the telescopic mechanism is an electric telescopic rod or a hydraulic cylinder, and the output end of the telescopic mechanism is connected with the cross beam.
Preferably, a fixed seat is arranged on the upper side of the pressure plate, a circular plate is arranged at the lower end of the guide rod, and the circular plate is located in the fixed seat.
Preferably, a sealing ring is arranged on the outer side of the pressure plate.
Preferably, the second storage tank is connected with a pressure gauge.
Compared with the prior art, the utility model has the following beneficial effects:
(1) according to the double-tower double-condensation large-volume liquid nitrogen device, the pressure plate is arranged, so that a certain pressure can be kept in the container, liquid nitrogen can be pressed out, and the problem that residual liquid nitrogen in the container is difficult to discharge is solved.
(2) According to the double-tower double-condensation large-volume liquid nitrogen device, the limiting holes are formed in the guide rod, and the limiting rods can be inserted into the limiting holes, so that the purpose of positioning the guide rod is achieved, and the stability of the device in use is improved.
(3) According to the double-tower double-condensation large-volume liquid nitrogen device, the cold insulation layer is arranged, so that heat exchange between liquid nitrogen and the outside is avoided, the stability of the liquid nitrogen is ensured, and the pressure in the second storage tank is further kept stable.
(4) According to the double-tower double-condensation large-volume liquid nitrogen device, the sealing ring is arranged on the outer side of the pressure plate, so that the sealing performance between the pressure plate and the second storage tank is improved, and the working stability of the device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of fig. 1 according to the present invention.
FIG. 3 is a schematic view of the guide bar of the present invention.
FIG. 4 is a schematic view of the platen of the present invention.
In the figure: 1. a first storage tank; 2. a cold insulation layer; 3. a second storage tank; 4. a telescoping mechanism; 5. a cross beam; 6. a guide bar; 7. a limiting rod; 8. fixing a sleeve; 9. a circular plate; 10. a fixed seat; 11. a connecting pipe; 13. pressing a plate; 14. a liquid discharge pipe; 15. a liquid inlet pipe; 16. a one-way valve; 17. a limiting hole; 18. and (5) sealing rings.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example one
As shown in fig. 1-4, a double-tower double-condensation large-volume liquid nitrogen device comprises a first storage tank 1 and a second storage tank 3, wherein the second storage tank 3 is arranged inside the first storage tank 1, the second storage tank 3 is coaxially arranged with the first storage tank 1, a cold insulation layer 2 is arranged between the first storage tank 1 and the second storage tank 3, the cold insulation layer 2 can prevent liquid nitrogen in the second storage tank 3 from exchanging heat with the outside, so that the liquid nitrogen is in a stable state, the pressure in the second storage tank 3 is prevented from increasing, the stability of the second storage tank 3 during operation is improved, a pressing plate 13 is arranged in the second storage tank 3, a guide rod 6 is arranged on the upper side of the pressing plate 13, a cross beam 5 is arranged at the other end of the guide rod 6, a telescopic mechanism 4 is arranged on the upper surface of the first storage tank 1, and the other end of the telescopic mechanism 4 is connected with the cross beam 5, the telescopic mechanism 4 acts on the cross member 5, and can raise and lower the platen 13 in the second storage tank 3.
The second storage tank 1 is provided with a liquid inlet pipe 15 and a liquid outlet pipe 14, the liquid inlet pipe 15 and the liquid outlet pipe 14 are both provided with corresponding one-way valves 16, and the liquid inlet pipe 15 is connected with a liquid nitrogen outlet of the cooling tower.
The axis department of first holding vessel 1 and second holding vessel 3 is connected with fixed cover 8 jointly, be sealing connection between guide arm 6 and the fixed cover 8, guide arm 6 can remove in fixed cover 8, sets up fixed cover 8, stability when increasing guide arm 6 and removing.
The upper side of the second storage tank 3 is provided with a connecting pipe 11, and the other end of the connecting pipe 11 is positioned outside the first storage tank 1. The connecting pipe 11 is used for balancing the air pressure in the cavity on the upper side of the pressing plate 13, so that the negative pressure state is avoided, and the pressing plate 13 can stably and reliably run.
The guide rod 6 is provided with a plurality of limiting holes 17 in sequence along the axis direction, the limiting holes 17 are uniformly arranged along the axis direction, the limiting rods 7 are inserted in the limiting holes 17, and when the device is in a static state, the limiting rods 7 are inserted in the limiting holes 17, so that the guide rod 6 is fixed.
The number of the telescopic mechanisms 4 is two, and the two telescopic mechanisms are symmetrically arranged relative to the guide rod 6. The telescopic mechanism 4 is an electric telescopic rod or a hydraulic cylinder, and the output end of the telescopic mechanism 4 is connected with the cross beam 5.
Example two
A double-tower double-condensation large-volume liquid nitrogen device comprises a first storage tank 1 and a second storage tank 3, wherein the second storage tank 3 is arranged on the inner side of the first storage tank 1, the second storage tank 3 and the first storage tank 1 are coaxially arranged, a cold insulation layer 2 is arranged between the first storage tank 1 and the second storage tank 3, the cold insulation layer 2 can prevent liquid nitrogen in the second storage tank 3 from exchanging heat with the outside, so that the liquid nitrogen is in a stable state, the pressure in the second storage tank 3 is prevented from increasing, the stability of the second storage tank 3 during operation is improved, a pressing plate 13 is arranged in the second storage tank 3, a guide rod 6 is arranged on the upper side of the pressing plate 13, a cross beam 5 is arranged at the other end of the guide rod 6, a telescopic mechanism 4 is arranged on the upper surface of the first storage tank 1, the other end of the telescopic mechanism 4 is connected with the cross beam 5, and the telescopic mechanism 4 acts on the cross beam 5, the platen 13 can be raised and lowered in the second storage tank 3.
The upside of clamp plate 13 is provided with fixing base 10, the lower extreme of guide arm 6 is provided with plectane 9, plectane 9 is located fixing base 10, plectane 9 can rotate in fixing base 10. And a sealing ring 18 is arranged on the outer side of the pressing plate 13, and the sealing ring 18 is tightly attached to the inner wall of the second storage tank 3. The pressure gauge is connected to the second storage tank 3, and the pressure in the second storage tank 3 can be observed and known through the pressure gauge.
The device obtained by the technical scheme is a double-tower double-condensation large-volume liquid nitrogen device, when the residual amount of liquid nitrogen in the second storage tank 3 is small, the pressing plate 13 is moved downwards to compress the residual liquid nitrogen, the pressure of the liquid nitrogen is increased, the residual liquid nitrogen can be smoothly discharged, and the problem that the liquid nitrogen in the second storage tank 3 is not easy to discharge is solved. When the liquid nitrogen in the second storage tank 3 is discharged, the pressing plate 13 is moved upward, and the air and the condensed water located at the upper side of the pressing plate 13 are discharged through the connection pipe 11.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a two bulky liquid nitrogen device of condensation of two towers, its characterized in that, includes first holding vessel (1) and second holding vessel (3), second holding vessel (3) set up the inboard in first holding vessel (1), second holding vessel (3) and first holding vessel (1) coaxial setting, be provided with cold insulation layer (2) between first holding vessel (1) and second holding vessel (3), be provided with clamp plate (13) in second holding vessel (3), the upside of clamp plate (13) is provided with guide arm (6), the other end of guide arm (6) is provided with crossbeam (5), the upper surface of first holding vessel (1) is provided with telescopic machanism (4), the other end and the crossbeam (5) of telescopic machanism (4) are connected.
2. The double-tower double-condensation large-volume liquid nitrogen device as claimed in claim 1, characterized in that the second storage tank (3) is provided with a liquid inlet pipe (15) and a liquid outlet pipe (14), the liquid inlet pipe (15) and the liquid outlet pipe (14) are respectively provided with a corresponding one-way valve (16), and the liquid inlet pipe (15) is connected with a liquid nitrogen outlet of the cooling tower.
3. The double-tower double-condensation bulk liquid nitrogen device according to claim 1, characterized in that a fixing sleeve (8) is connected to the axes of the first storage tank (1) and the second storage tank (3) together, and the guide rod (6) and the fixing sleeve (8) are connected in a sealing manner.
4. The double column double condensed bulk liquid nitrogen device according to claim 1, characterized in that the second storage tank (3) is provided with a connection pipe (11) at its upper side, and the other end of the connection pipe (11) is located outside the first storage tank (1).
5. The double-tower double-condensation large-volume liquid nitrogen device as claimed in claim 1, wherein the guide rod (6) is provided with a plurality of limiting holes (17) in sequence along the axial direction, and the plurality of limiting holes (17) are uniformly arranged along the axial direction.
6. Double column double condensation bulk liquid nitrogen installation according to claim 1, characterized in that the number of telescopic means (4) is two, the two telescopic means being arranged symmetrically with respect to the guide bar (6).
7. The double-tower double-condensation large-volume liquid nitrogen device according to claim 6, characterized in that the telescopic mechanism (4) is an electric telescopic rod or a hydraulic cylinder, and the output end of the telescopic mechanism (4) is connected with the cross beam (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122208001.3U CN215411360U (en) | 2021-09-13 | 2021-09-13 | Double-tower double-condensation large-volume liquid nitrogen device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122208001.3U CN215411360U (en) | 2021-09-13 | 2021-09-13 | Double-tower double-condensation large-volume liquid nitrogen device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215411360U true CN215411360U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122208001.3U Active CN215411360U (en) | 2021-09-13 | 2021-09-13 | Double-tower double-condensation large-volume liquid nitrogen device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215411360U (en) |
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2021
- 2021-09-13 CN CN202122208001.3U patent/CN215411360U/en active Active
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