CN203534017U - Liquid nitrogen heat exchange device - Google Patents
Liquid nitrogen heat exchange device Download PDFInfo
- Publication number
- CN203534017U CN203534017U CN201320501653.9U CN201320501653U CN203534017U CN 203534017 U CN203534017 U CN 203534017U CN 201320501653 U CN201320501653 U CN 201320501653U CN 203534017 U CN203534017 U CN 203534017U
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- Prior art keywords
- liquid nitrogen
- heat exchanger
- intermediate heat
- heat exchange
- refrigerant
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Abstract
The embodiment of the utility model discloses a liquid nitrogen heat exchange device. The liquid nitrogen heat exchange device comprises a liquid nitrogen container used for storing liquid nitrogen, and an intermediate heat exchanger used for exchanging heat and connected with the liquid nitrogen container. The intermediate heat exchanger is connected with a chemical reaction tank, a condensate collection tank and a dichloromethane refrigerant high-temperature gas tank. The liquid nitrogen heat exchange device has the advantages of maximizing heat exchange cooling, reducing the energy loss and protecting the environment.
Description
Technical field
The utility model relates to the technical field of the cooling recovery of organic solvent in production of raw medicine, relates in particular to a kind of liquid nitrogen heat-exchanger rig.
Background technology
In production of raw medicine manufacturing process; conventionally the system that can need to lower the temperature is carried out heat exchange cooling to each; in prior art; conventionally utilizing liquid nitrogen to carry out each needs the system of cooling to carry out heat exchange cooling; but the temperature of general liquid nitrogen is subzero below 190 ℃; and the on-the-spot temperature of controlling that needs of heat exchange is-40 ℃ of left and right; excessive thermograde causes the cold major part of liquid nitrogen not to be utilized; after heat exchange simultaneously, nitrogen directly discharges; the organic solvent of wherein carrying secretly in nitrogen can bring pollution to surrounding enviroment, is detrimental to health.
As shown in Figure 1, Chinese patent Granted publication number is: a kind of 7-chloro-2-oxoheptanoate reaction unit system of CN202606136U, comprise reactor 1, form liquid stores still 2, diethy-aceto oxalate storage tank 3, described form liquid stores still 2, diethy-aceto oxalate storage tank 3 all connects in described reactor 1 and adds reaction mass, also comprise liquid nitrogen storage tank, described liquid nitrogen storage tank 4 docks with described reactor 1 by pipeline 5, described pipeline 5 is wrapped with heat-insulation layer 6, described reactor 1 is provided with blow-down pipe 7, it leads to fast cooling in reactor by low temperature liquid nitrogen, nitrogen can accurately be controlled low-temp reaction simultaneously, realize effectively reaction and the high yield of target product, but the excessive temperature differentials of its liquid nitrogen and reactor, cause a large amount of colds not to be utilized, nitrogen directly discharges simultaneously, be unfavorable for the protection of environment, be detrimental to health.
Based on above defect, the applicant proposes a kind of liquid nitrogen heat-exchanger rig.
Utility model content
The utility model embodiment technical problem to be solved is, a kind of liquid nitrogen heat-exchanger rig is provided, and its maximized heat exchange is cooling, has reduced energy loss, has protected environment.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of liquid nitrogen heat-exchanger rig, comprises for storing the liquid nitrogen container of liquid nitrogen, the described and tank connected Intermediate Heat Exchanger for heat exchange of liquid nitrogen.Described Intermediate Heat Exchanger is connected with condensed fluid collection tank with described drug response tank respectively, and described Intermediate Heat Exchanger is connected with carrene refrigerant high-temperature gas tank.
Further preferred version, described Intermediate Heat Exchanger is provided with refrigerant entrance, and the outlet of described carrene refrigerant high-temperature gas tank is connected with described refrigerant entrance, and described Intermediate Heat Exchanger is provided with liquid nitrogen entrance, described liquid nitrogen entrance and described refrigerant entrance next-door neighbour.
Further preferred version, described Intermediate Heat Exchanger is shell-and-tube heat exchanger, in described shell-and-tube heat exchanger, is provided with helix tube.
Further preferred version, is provided with valve between described liquid nitrogen container and described Intermediate Heat Exchanger, and described valve is stop valve.
Further preferred version, described drug response tank upside is provided with nitrogen discharge mouth, and described nitrogen discharge mouth is connected with Solvent Recovery Unit.
The utility model embodiment compared with prior art, has following beneficial effect:
1, by Intermediate Heat Exchanger, high temperature carrene refrigerant is cooled to-80 ℃, then carrene refrigerant is delivered in the equipment that needs heat exchange, improved the cryogenic energy utilization rate of liquid nitrogen;
2, condensed liquid enters in condensed fluid collection tank and stores, and has protected environment, has reduced pollution;
3, by Intermediate Heat Exchanger, maximized heat exchange is cooling, reduces energy loss;
4, the nitrogen in drug response tank enters Solvent Recovery Unit after nitrogen discharge mouth, has improved the rate of recovery of solvent, has reduced the pollution of environment.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that Granted publication number is: the structure chart of CN202606136U;
Fig. 2 is the liquid nitrogen heat-exchanger rig structural representation that the utility model embodiment provides.
The specific embodiment
The liquid nitrogen heat-exchanger rig that the utility model embodiment provides, its maximized heat exchange is cooling, has reduced energy loss, has protected environment.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 2, the liquid nitrogen heat-exchanger rig structural representation providing for the utility model embodiment, this liquid nitrogen heat-exchanger rig as shown in Figure 2, comprise for storing the liquid nitrogen container 20 of liquid nitrogen, described liquid nitrogen container 20 is high-pressure bottle, and the temperature of described liquid nitrogen is subzero below 190 ℃, the Intermediate Heat Exchanger 21 for heat exchange being connected with described liquid nitrogen container 20.Described Intermediate Heat Exchanger 21 is shell-and-tube heat exchanger, in described shell-and-tube heat exchanger 21, is provided with helix tube 22, adopts the shell-and-tube heat exchanger of built-in helix tube, assurance heat transfer effect that can be maximum.Described Intermediate Heat Exchanger 21 is connected with condensed fluid collection tank 24 with described drug response tank 23 respectively, and condensed fluid collection tank 24 is set, and can make to reclaim through the refrigerant condensed fluid collection of Intermediate Heat Exchanger, has improved the rate of recovery of refrigerant, has reduced production cost.
Further preferred version, described Intermediate Heat Exchanger 21 is connected with carrene refrigerant high-temperature gas tank 25, described Intermediate Heat Exchanger 21 is provided with refrigerant entrance 26, the outlet of described carrene refrigerant high-temperature gas tank 25 is connected with described refrigerant entrance 26, described Intermediate Heat Exchanger 21 is provided with liquid nitrogen entrance 27, described liquid nitrogen entrance 27 and described refrigerant entrance 26 next-door neighbours, by liquid nitrogen entrance 27 and described refrigerant entrance 26 are set to next-door neighbour, the abundant contact that can improve high temperature refrigerant is cooling, guarantees that the temperature of controlling refrigerant is in subzero 40 ℃ of left and right.
Further preferred version, is provided with valve 28 between described liquid nitrogen container 20 and described Intermediate Heat Exchanger 21, and described valve 28 is stop valve, and it selects electrically operated valve, can be convenient to the open and close of liquid nitrogen container, is beneficial to the discharge of controlling liquid nitrogen.
Further preferred version, described drug response tank 23 upsides are provided with nitrogen discharge mouth 29, and described nitrogen discharge mouth 29 is connected with Solvent Recovery Unit 30, the organic solvent of carrying secretly in the nitrogen of organic solvent can be reclaimed, and is beneficial to the protection of environment and the reduction of cost.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (3)
1. a liquid nitrogen heat-exchanger rig, comprise for storing the liquid nitrogen container of liquid nitrogen, it is characterized in that, also comprise and the tank connected Intermediate Heat Exchanger for heat exchange of described liquid nitrogen, described Intermediate Heat Exchanger is connected with condensed fluid collection tank with described drug response tank respectively, described Intermediate Heat Exchanger is connected with carrene refrigerant high-temperature gas tank, described Intermediate Heat Exchanger is provided with refrigerant entrance, the outlet of described carrene refrigerant high-temperature gas tank is connected with described refrigerant entrance, described Intermediate Heat Exchanger is provided with liquid nitrogen entrance, described liquid nitrogen entrance and described refrigerant entrance next-door neighbour.
2. a kind of liquid nitrogen heat-exchanger rig according to claim 1, is characterized in that, described Intermediate Heat Exchanger is shell-and-tube heat exchanger, in described shell-and-tube heat exchanger, is provided with helix tube.
3. a kind of liquid nitrogen heat-exchanger rig according to claim 1, is characterized in that, between described liquid nitrogen container and described Intermediate Heat Exchanger, is provided with valve, and described valve is stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320501653.9U CN203534017U (en) | 2013-08-16 | 2013-08-16 | Liquid nitrogen heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320501653.9U CN203534017U (en) | 2013-08-16 | 2013-08-16 | Liquid nitrogen heat exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203534017U true CN203534017U (en) | 2014-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320501653.9U Expired - Lifetime CN203534017U (en) | 2013-08-16 | 2013-08-16 | Liquid nitrogen heat exchange device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203534017U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509393A (en) * | 2014-09-26 | 2016-04-20 | 宋占涛 | Solvent catcher taking liquid nitrogen as cold source |
| CN109959196A (en) * | 2019-03-07 | 2019-07-02 | 西安航天动力研究所 | A kind of wide scope temperature adjusting heat-exchanger rig for methane subzero treatment |
-
2013
- 2013-08-16 CN CN201320501653.9U patent/CN203534017U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509393A (en) * | 2014-09-26 | 2016-04-20 | 宋占涛 | Solvent catcher taking liquid nitrogen as cold source |
| CN109959196A (en) * | 2019-03-07 | 2019-07-02 | 西安航天动力研究所 | A kind of wide scope temperature adjusting heat-exchanger rig for methane subzero treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |