CN207163048U - It is a kind of to carry out the naked cold device of ice chest using liquid nitrogen - Google Patents
It is a kind of to carry out the naked cold device of ice chest using liquid nitrogen Download PDFInfo
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- CN207163048U CN207163048U CN201721123937.3U CN201721123937U CN207163048U CN 207163048 U CN207163048 U CN 207163048U CN 201721123937 U CN201721123937 U CN 201721123937U CN 207163048 U CN207163048 U CN 207163048U
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Abstract
Ice chest leakproof field is the utility model is related to, it is specifically a kind of to carry out the naked cold device of ice chest using liquid nitrogen.A kind of to carry out the naked cold device of ice chest using liquid nitrogen, including the water bath carburetor being connected on liquid nitrogen discharging opening, the water-bath heater being connected on water bath carburetor discharging opening, the unstripped gas that the discharging opening of water-bath heater is connected to ice chest by pipeline enters on ice chest pipeline.It is described in the utility model simple and easy using the liquid nitrogen progress naked cold method and apparatus of ice chest, substantial amounts of material and the energy are saved, naked cold effect is more preferable, in the case where high pressure nitrogen system does not possess the condition of coming into operation, can also accelerate system driving progress.The utility model production effect is good, and exploitativeness is strong, suitably promotes the use of.
Description
Technical field
Ice chest leakproof field is the utility model is related to, it is specifically a kind of to carry out the naked cold device of ice chest using liquid nitrogen.
Background technology
The former naked cold method of ice chest is to produce cold using high pressure nitrogen throttling expansion and Joule-Thomson effect, will be
System cooling, makes equipment surface frosting.The high pressure nitrogen consumption and energy consumption of this method are especially high, and need space division elevated pressure nitrogen
Gas system possesses the condition of coming into operation, and postpones system driving progress.
Utility model content
The utility model is in order to solve problems existing for the naked cooling method of former ice chest, there is provided one kind utilizes liquid nitrogen progress
The naked cold device of ice chest.
The utility model is achieved through the following technical solutions：It is a kind of to carry out the naked cold device of ice chest, bag using liquid nitrogen
The water bath carburetor being connected on liquid nitrogen discharging opening is included, the water-bath heater being connected on water bath carburetor discharging opening, water-bath adds
The unstripped gas that the discharging opening of hot device is connected to ice chest by pipeline enters on ice chest pipeline.
As the further improvement of the technical scheme of device, the heat exchanger tube of water bath carburetor is stainless steel tube, with liquid nitrogen car
Flexible pipe connection；The heat exchanger tube of water-bath heater is multigroup stainless steel tube arranged side by side.
It is described in the utility model simple and easy using the liquid nitrogen progress naked cold device of ice chest, save substantial amounts of material and energy
Source, naked cold effect is more preferable, in the case where high pressure nitrogen system does not possess the condition of coming into operation, can also accelerate system driving progress.This
Utility model production effect is good, and exploitativeness is strong, suitably promotes the use of.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of connection diagram that the naked cold device of ice chest and ice chest are carried out using liquid nitrogen described in the utility model.
In figure：1- water bath carburetors, 2- water-bath heaters, 3- unstripped gas enter ice chest pipeline, 4- blow-off pipes, 5- steam feeds
Pipe, 6- hot-water lines, 7- nitrogen wash columns, 8- high pressure nitrogen pipelines, 9- blenders, 10- high pressure nitrogen branch lines, 11- liquid nitrogen containers,
12- nitrogen leak pipelines, 13- high pressure nitrogen coolers, 14-1# feed gas chillers, 15-2# feed gas chillers, 16- gas-liquids
Separator, 17- hydrogen gas segregators, 18- hot synthesis gas pipelines, 19- circulation hydrogen pipelines, 20- fuelgas pipelines, the cold synthesis gas of 21-,
22nd, 23,24,25- pipelines.
Embodiment
, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer
Scheme is described in detail.Obviously, described embodiment is only the utility model part of the embodiment, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Resulting all other embodiment is put, belongs to the scope that the utility model is protected.
The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings.
A kind of to carry out the naked cold method of ice chest using liquid nitrogen, the cold nitrogen formed after being heated up using liquid nitrogen vaporization passes through pipeline
It is sent into equipment and pipeline in ice chest, equipment and pipeline cool naked cold.
Specifically, methods described is realized in following device, described device includes being connected on liquid nitrogen discharging opening
Water bath carburetor 1, the water-bath heater 2 being connected on the discharging opening of water bath carburetor 1, the discharging opening of water-bath heater 2 pass through pipe
The unstripped gas that line is connected to ice chest enters on ice chest pipeline 3.The unstripped gas, which enters when ice chest pipeline 3 belongs to ice chest normal use, to be made
Feeding line, and the claimed structure of method described in the utility model is not belonging to, method described in the utility model is
It make use of original ice chest normally pipeline used in production.
Further, liquid nitrogen is vaporized and heated by water bath carburetor 1, by adjusting water bath carburetor 1 and heating water bath
The outlet temperature of steam addition and displacement the control water-bath heater 2 of device 2, with naked cold progress, controls heating water bath
The draining rate of temperature fall of device 2 is 15 DEG C/h, and naked cold later stage (temperature when entering ice chest) is down to -90 DEG C ± 5 DEG C.
Specifically, the hot water heating of logical steam is used in the water tank of water bath carburetor 1 and water-bath heater 2, in water tank
There is venthole on steam pipe, by the steam inlet amount in Valve controlling water tank, water tank bottom is provided with the blow-off pipe for draining
4。
When it is implemented, the heating in the water tank of water bath carburetor 1 and water-bath heater 2 is by the He of steam feed pipe 5
What hot-water line 6 was realized, the water tank of steam feed pipe 5 and hot-water line 6 with water bath carburetor 1 and water-bath heater 2 is connected
It is logical.
Further, it is a kind of to carry out the naked cold device of ice chest, including the water-bath being connected on liquid nitrogen discharging opening using liquid nitrogen
Vaporizer 1, the water-bath heater 2 being connected on the discharging opening of water bath carburetor 1, the discharging opening of water-bath heater 2 are connected by pipeline
The unstripped gas for being connected to ice chest enters on ice chest pipeline 3.
Preferably, the heat exchanger tube of water bath carburetor 1 is stainless steel tube, is connected with the flexible pipe of liquid nitrogen car；Water-bath heater 2
Heat exchanger tube is multigroup stainless steel tube arranged side by side.
The heat exchanger tube of water bath carburetor 1 is 3 × 6m DN80 stainless steel tubes, and the joint with liquid nitrogen car flexible pipe is DN40 low temperature
Valve；The water tank of water bath carburetor 1 is 7 × 1 × 1.5m, is passed through 0.5MPa steam, and steam pipe is long 6m DN50 carbon steel pipes, water
There is Φ 5cm venthole on steam pipe in case, pass through DN50 Valve controlling air inflow；Water tank bottom has DN25 blow-off pipes 4,
Pass through DN25 Valve controlling displacement.The heat exchanger tube of water-bath heater 2 is two arranged side by side, is 3 × 6m DN100 stainless steels
Pipe；The water tank of water-bath heater 2 is 7 × 1.5 × 1.5m, is passed through 0.5MPa steam, and steam pipe is two root longs 6m arranged side by side DN50
Carbon steel pipe, there is Φ 5 venthole on the steam pipe in water tank, pass through two DN50 Valve controlling air inflow respectively；Water tank
DN25 blow-off pipes 4 are arranged at bottom, pass through DN25 Valve controlling displacement.
For clearer explanation the technical solution of the utility model, the utility model provides a kind of ice chest structure (such as
Shown in Fig. 1)：
When naked cold, liquid nitrogen is vaporized and heated by water bath carburetor 1, and water is controlled by adjusting steam addition and displacement
Bathe about -90 DEG C of heater 2 outlet temperature, the outlet temperature of water bath carburetor 1 is at naked about 20 DEG C of cold initial stage, then slow cooling, control
About 15 DEG C/h of rate of temperature fall processed, naked cold later stage are down to -90 DEG C or so (- 90 DEG C ± 5 DEG C).Unstripped gas enters cold in naked cold later stage ice chest
Case pipeline 3 enters about -90 DEG C of the temperature of 1# feed gas chillers 14 (coolant temperature) (- 90 DEG C ± 5 DEG C), and unstripped gas enters ice chest pipeline
3 enter about -60 DEG C of the temperature of 2# feed gas chillers 15 (coolant temperature) (- 60 DEG C ± 5 DEG C), and unstripped gas enters ice chest pipeline 3 and enters nitrogen
About -40 DEG C of 7 temperature of tower (- 40 DEG C ± 5 DEG C) is washed, cold box equipment and pipeline frosting are good, it was demonstrated that are asked without equipment and pipeline leakage
Topic.
In addition, it is necessary to explanation, due to thering is equipment component and pipeline normally producing in the equipment in ice chest and pipeline
When be exactly be used for lead to nitrogen (such as enter the high pressure nitrogen pipeline 8 of nitrogen wash column 7, enter the high pressure nitrogen branch line 10 of blender 9) or
Liquid nitrogen (liquid nitrogen container 11 and the nitrogen leak pipeline 12, the pipeline 24 that are connected on liquid nitrogen container 11), lead to the equipment of nitrogen and liquid nitrogen
Inherently only play a part of cooling, and such as high pressure nitrogen cooler 13,1# feed gas chillers 14 and 2# with pipeline
Feed gas chiller 15 only uses as cooling, due to the nitrogen in these equipment and pipeline and liquid nitrogen and is not involved in reacting, because
Equipment (nitrogen wash column 7, gas-liquid separator 16, hydrogen gas segregator 17 and blender 9) when this is specific naked cold only to participating in reaction
(such as unstripped gas enters ice chest pipeline 3, hot synthesis gas pipeline 18, circulation hydrogen pipeline 19, fuelgas pipeline 20, cold synthesis gas with pipeline
Connecting pipeline 22 between pipeline 21 and equipment and equipment, 23,25) carry out it is naked cold.
When the ice chest described in Fig. 1, which uses, carries out naked cold using the utility model method, liquid nitrogen 66m is consumed3, convert nitrogen
42768Nm3, conversion energy consumption is 17962kWh, consumes low-pressure steam 4t, and conversion energy consumption is 4214kWh, adds up to energy consumption
22176kW·h.Conventional method can consume nitrogen using high pressure nitrogen throttling refrigeration naked cold (space division high pressure nitrogen system)
560000Nm3, conversion energy consumption is 136192kWh.Using the utility model method it is naked it is cold save nitrogen 92%, save energy consumption
84%.
The utility model method of table 1 contrasts with conventional method consumption indicators
From above-described embodiment as can be seen that substantial amounts of material and the energy, naked cold effect can be saved using the utility model method
Fruit is good, in the case where high pressure nitrogen system does not possess the condition of coming into operation, can also accelerate system driving progress, and production effect is good
Good, simple and easy, exploitativeness is strong.
Realization of the present utility model is not subject to the restrictions described above, if employ methodology of the present utility model and
The various improvement that technical scheme is carried out, without a variety of changes made by performing creative labour, in guarantor of the present utility model
In the range of shield.
Claims (2)
1. a kind of carry out the naked cold device of ice chest using liquid nitrogen, it is characterised in that including the water-bath being connected on liquid nitrogen discharging opening
Vaporizer（1）, it is connected to water bath carburetor（1）Water-bath heater on discharging opening（2）, water-bath heater（2）Discharging opening lead to
Cross pipeline and be connected to the unstripped gas of ice chest and enter ice chest pipeline（3）On.
2. it is according to claim 1 it is a kind of utilize liquid nitrogen carry out the naked cold device of ice chest, it is characterised in that water bath carburetor
（1）Heat exchanger tube be stainless steel tube, be connected with the flexible pipe of liquid nitrogen car；Water-bath heater（2）Heat exchanger tube for side by side it is multigroup stainless
Steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123937.3U CN207163048U (en) | 2017-09-04 | 2017-09-04 | It is a kind of to carry out the naked cold device of ice chest using liquid nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123937.3U CN207163048U (en) | 2017-09-04 | 2017-09-04 | It is a kind of to carry out the naked cold device of ice chest using liquid nitrogen |
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| Publication Number | Publication Date |
|---|---|
| CN207163048U true CN207163048U (en) | 2018-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421188A (en) * | 2017-09-04 | 2017-12-01 | 阳煤集团太原化工新材料有限公司 | It is a kind of to carry out the naked cold method and apparatus of ice chest using liquid nitrogen |
-
2017
- 2017-09-04 CN CN201721123937.3U patent/CN207163048U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421188A (en) * | 2017-09-04 | 2017-12-01 | 阳煤集团太原化工新材料有限公司 | It is a kind of to carry out the naked cold method and apparatus of ice chest using liquid nitrogen |
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Effective date of registration: 20210115 Granted publication date: 20180330 |
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Date of cancellation: 20230115 Granted publication date: 20180330 |
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