阅读说明：本技术 带过冷保护的深冷缓释便携冷源装置及其使用方法 (Cryogenic slow-release portable cold source device with supercooling protection and using method thereof ) 是由 何凯 闫欣 吴永程 王刚 张�杰 刘毅恒 田进寿 汪韬 姚东 于 2020-12-11 设计创作，主要内容包括：本发明涉及一种带过冷保护的深冷缓释便携冷源装置及其使用方法。本发明的目的是解决现有便携冷源装置存在无法满足野外无保障场景下的现场制冷和深冷缓释等综合需求的技术问题,提供一种带过冷保护的深冷缓释便携冷源装置及其使用方法。该装置采用氯化铵、氢氧化钡、氯化钠等常温组分,利用化学吸热、相变吸热的复合过程,实现深度蓄冷、缓释制冷的综合效能,是一种可提供长时间深度冷却条件的便携装置,解决了现有技术无法现场制冷、无法深度冷却、无法便携备用的问题；通过机械操作启动,无需低温保障、无需加注介质,解决现有技术保障要求高、用前操作繁杂的问题；还基于化学吸热过程的气体产物设计了隔离结构,形成过冷防护功能。(The invention relates to a cryogenic slow-release portable cold source device with supercooling protection and a using method thereof. The invention aims to solve the technical problem that the existing portable cold source device cannot meet the comprehensive requirements of field refrigeration, deep cooling slow release and the like in the field without guarantee scene, and provides a deep cooling slow release portable cold source device with supercooling protection and a using method thereof. The device adopts normal temperature components such as ammonium chloride, barium hydroxide, sodium chloride and the like, utilizes a composite process of chemical heat absorption and phase change heat absorption to realize comprehensive efficiency of deep cold accumulation and slow release refrigeration, is a portable device capable of providing a long-time deep cooling condition, and solves the problems that the prior art cannot carry out on-site refrigeration, deep cooling and portable standby; the device is started through mechanical operation, low-temperature guarantee is not needed, and a medium is not needed to be filled, so that the problems of high guarantee requirement and complex operation before use in the prior art are solved; an isolation structure is designed based on gas products in a chemical endothermic process, and a supercooling protection function is formed.)

1. The utility model provides a take portable cold source device of cryrogenic slowly-releasing of supercooling protection which characterized in that: the flexible air-conditioning valve comprises a flexible shell (1), a one-way pressure limiting exhaust valve (3), a torsion valve (4), a torsion valve cover (5), a flexible liner (2) arranged in the flexible shell (1), and a plurality of storage bags arranged in the flexible liner (2);

the plurality of storage bags comprise a water bag (6) containing water, an ammonium chloride storage bag (7) containing ammonium chloride, a barium hydroxide storage bag (8) containing barium hydroxide and a sodium chloride storage bag (9) containing sodium chloride; the ammonium chloride storage bag (7), the barium hydroxide storage bag (8) and the sodium chloride storage bag (9) can be broken under the extrusion action;

the one-way pressure limiting exhaust valve (3) is arranged on the flexible inner container (2), and the exhaust direction of the one-way pressure limiting exhaust valve points to the outside of the flexible inner container (2);

the handle of the torsion valve (4) is positioned outside the flexible shell (1), the rod part of the torsion valve is connected with the water sac (6) through the flexible shell (1) and the flexible liner (2), and the flexible shell (1) and the flexible liner (2) are both fixedly connected with the rod part in a sealing manner and are used for opening the water sac (6); the torsion valve cover (5) is arranged at the handle in a covering mode and used for covering the handle.

2. The cryogenic slow-release portable cold source device with supercooling protection as claimed in claim 1, wherein: the flexible shell (1) is made of polyurethane, and the flexible inner container (2) is made of polyvinyl chloride.

3. The cryogenic slow-release portable cold source device with supercooling protection as claimed in claim 2, wherein: the ammonium chloride storage bag (7), the barium hydroxide storage bag (8) and the sodium chloride storage bag (9) are all made of coated aluminum materials.

4. The cryogenic slow-release portable cold source device with supercooling protection as claimed in claim 3, wherein: the water bag (6) is made of polyvinyl chloride.

5. The cryogenic slow-release portable cold source device with supercooling protection as claimed in claim 4, wherein: the ammonium chloride, the barium hydroxide and the sodium chloride are all dry powder or dry particles.

6. The cryogenic slow-release portable cold source device with supercooling protection as claimed in claim 5, wherein: the critical exhaust pressure of the one-way pressure limiting exhaust valve (3) is 0.20MPa +/-0.02 MPa.

7. The use method of a cryogenic slow-release portable cold source device with supercooling protection as claimed in any one of claims 1 to 6, characterized by comprising the following steps:

1) extruding the flexible shell (1) to break the ammonium chloride storage bag (7), the barium hydroxide storage bag (8) and the sodium chloride storage bag (9) to obtain a mixture of ammonium chloride, barium oxide and sodium chloride;

2) and (3) taking off the torsion valve cover (5), and rotating a handle of the torsion valve (4) to open the water sac (6) to complete further mixing of the water with the mixture of ammonium chloride, barium oxide and sodium chloride.

Technical Field

The invention relates to a cold source device, in particular to a cryogenic slow-release portable cold source device with supercooling protection and a using method thereof.

Background

The portable cold source is used for low-temperature maintenance under the cold chain-free support condition and the field condition, and is widely applied to scenes such as fresh transportation, medical rescue and the like. From the requirement of a typical scene, the design of the portable cold source mainly focuses on the technical performances such as the cold accumulation amount and the minimum stable temperature of unit weight, and the application performances such as the supercooling protection and the starting mode.

The existing portable cold source can be classified into a non-supported type such as a charging refrigerator and the like, and a supported type such as an ice bag, an ice salt bath and a small-sized plug-in refrigerator and the like.

The charging refrigerator adopts modes of electrically-driven semiconductor refrigeration and the like, has compact structure and reliable operation, but is limited by the conversion efficiency of semiconductor devices, and the deep refrigeration and long-time refrigeration capacity of the technology needs to be improved.

The ice bag is internally provided with a cold accumulation working medium, can provide low temperature conditions within a certain time after being pre-frozen, and is widely applied to the industries of medical treatment and treatment, fresh logistics and the like. Ice bags are generally classified into water-based conventional ice bags and multi-component chemical ice bags. The water-based traditional ice bag provides a low-temperature condition through phase change heat absorption of ice blocks, and the multi-component chemical ice bag takes compound aqueous solutions such as inorganic salt, high polymer gel and the like as working media, has good cold storage capacity and refrigeration capacity, but needs to be filled with a water medium or be wholly soaked in water before use.

The ice salt bath adopts phase change heat absorption refrigeration of ice and inorganic salt mixtures such as ammonium chloride, sodium chloride and the like, and has good deep refrigeration capacity and high cold storage capacity; ice blocks or ice particles need to be prepared before use, although the ice blocks or ice particles have a deep refrigeration function under a low-temperature condition, the ice blocks or ice particles are easy to supercool, and the requirements on guarantee conditions and field allocation technology are high.

The small-sized plug-in refrigerator can provide a long-time adjustable low-temperature condition for the transportation link and temporary storage requirements of pharmaceutical preparations, biological samples and the like, but has the advantages of small content space, limited application scene, incapability of independent operation without a power supply support, and high manufacturing cost and operation cost.

Although the portable cold source has various types, the portable cold source cannot meet the requirements of field refrigeration and deep cooling slow release in the field under the non-guaranteed scene.

Disclosure of Invention

The invention aims to solve the technical problem that the existing portable cold source device cannot meet the comprehensive requirements of field refrigeration, deep cooling slow release and the like in the field without guarantee scene, and provides a deep cooling slow release portable cold source device with supercooling protection and a using method thereof.

In order to solve the technical problems, the technical solution provided by the invention is as follows:

the invention provides a deep cooling slow-release portable cold source device with supercooling protection, which is characterized in that: the flexible pressure-limiting exhaust valve comprises a flexible shell, a one-way pressure-limiting exhaust valve, a torsion valve cover, a flexible liner arranged in the flexible shell, and a plurality of storage bags arranged in the flexible liner;

the plurality of storage bags comprise a water bag containing water, an ammonium chloride storage bag containing ammonium chloride, a barium hydroxide storage bag containing barium hydroxide and a sodium chloride storage bag containing sodium chloride; the ammonium chloride storage bag, the barium hydroxide storage bag and the sodium chloride storage bag can be broken under the extrusion action;

the one-way pressure-limiting exhaust valve is arranged on the flexible liner, and the exhaust direction of the one-way pressure-limiting exhaust valve points to the outside of the flexible liner;

the handle of the torsion valve is positioned outside the flexible shell, the rod part of the torsion valve is connected with the water sac through the flexible shell and the flexible liner, and the flexible shell and the flexible liner are fixedly connected with the rod part in a sealing way and are used for opening the water sac; the torsion valve cover is arranged at the handle and used for covering the handle.

Furthermore, the flexible shell is made of polyurethane, and the flexible inner container is made of polyvinyl chloride.

Further, the ammonium chloride storage bag, the barium hydroxide storage bag and the sodium chloride storage bag are all made of coated aluminum materials.

Further, the water bag is made of polyvinyl chloride.

Further, the ammonium chloride, the barium hydroxide and the sodium chloride are all dry powder or dry particles.

Furthermore, the critical exhaust pressure of the one-way pressure limiting exhaust valve is 0.20MPa +/-0.02 MPa.

The invention also provides a using method of the deep cooling slow-release portable cold source device with supercooling protection, which is characterized by comprising the following steps of:

1) extruding the flexible shell to break the ammonium chloride storage bag, the barium hydroxide storage bag and the sodium chloride storage bag to obtain a mixture of ammonium chloride, barium oxide and sodium chloride;

2) and taking off the torsion valve cover, and rotating a handle of the torsion valve to open the water sac to complete further mixing of the water and the mixture of the ammonium chloride, the barium oxide and the sodium chloride.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention provides a cryogenic slow-release portable cold source device with supercooling protection and a using method thereof.

2. The cryogenic slow-release portable cold source device with supercooling protection and the using method thereof can be started through manual mechanical operation, do not need low-temperature guarantee and filling of media, and solve the problems of high guarantee requirement and complex operation before use in the prior art.

3. The invention provides a cryogenic slow-release portable cold source device with supercooling protection and a using method thereof.A separation structure is designed based on a gas product in a chemical heat absorption process, ammonia generated by chemical reaction of liquid water, ammonium chloride and barium hydroxide is accumulated in a flexible liner, and the ammonia is discharged to a reserved space between the flexible liner and a flexible shell after the pressure reaches the critical exhaust pressure of a one-way pressure-limiting exhaust valve; the flexible shell expands and is far away from the flexible inner container, so that supercooling protection is realized; the low-temperature state generated by deep refrigeration in the flexible liner is conducted to the flexible shell through the self structure of the flexible liner and ammonia gas atmosphere, the slow release use is realized to form the supercooling protection function, and the blank in the prior art is filled.

Drawings

FIG. 1 is a schematic structural diagram of a cryogenic slow-release portable cold source device with supercooling protection according to the invention;

description of reference numerals:

1-flexible shell, 2-flexible inner container, 3-one-way pressure-limiting exhaust valve, 4-torsion valve, 5-torsion valve cover, 6-water bag, 7-ammonium chloride storage bag, 8-barium hydroxide storage bag and 9-sodium chloride storage bag.

Detailed Description

The invention is further described below with reference to the figures and examples.

A cryogenic slow-release portable cold source device with supercooling protection comprises a flexible shell 1, a one-way pressure-limiting exhaust valve 3, a torsion valve 4, a torsion valve cover 5, a flexible inner container 2 arranged inside the flexible shell 1, and a plurality of storage bags arranged inside the flexible inner container 2; the plurality of storage bags comprise a water bag 6 containing water, an ammonium chloride storage bag 7 containing ammonium chloride, a barium hydroxide storage bag 8 containing barium hydroxide and a sodium chloride storage bag 9 containing sodium chloride; the ammonium chloride storage bag 7, the barium hydroxide storage bag 8 and the sodium chloride storage bag 9 can be broken under the extrusion action; the requirements of water cleanliness and the like in the water bag 6 are implemented according to GB5749 sanitary Standard for Drinking Water; the one-way pressure-limiting exhaust valve 3 is arranged on the flexible inner container 2, and the exhaust direction of the one-way pressure-limiting exhaust valve points to the outside of the flexible inner container 2; the handle of the torsion valve 4 is positioned outside the flexible shell 1, the rod part of the torsion valve is connected with the water sac 6 through the flexible shell 1 and the flexible liner 2, and the flexible shell 1 and the flexible liner 2 are fixedly connected with the rod part in a sealing way (the flexible shell 1 and the flexible liner 2 are positioned on the rod part, so that the relative positions of the flexible shell 1 and the flexible liner 2 are fixed) and are used for opening the water sac 6; the torsion valve cover 5 is arranged at the handle in a covering mode and used for covering the handle.

The flexible shell 1 is made of polyurethane, and the flexible inner container 2 is made of polyvinyl chloride. The ammonium chloride storage bag 7, the barium hydroxide storage bag 8 and the sodium chloride storage bag 9 are all made of coated aluminum materials. The water sac 6 is made of polyvinyl chloride. The ammonium chloride, the barium hydroxide and the sodium chloride can be dry powder or dry particles, and the technical requirements are all executed according to industrial-grade standards. The one-way pressure limiting exhaust valve 3 is implemented according to GB/T1796.2-2016 tire valve, and the critical exhaust pressure is required to be 0.20MPa +/-0.02 MPa.

The use (activation) method of the cryogenic slow-release portable cold source device with supercooling protection comprises the following steps:

1) extruding the flexible shell 1 to break the ammonium chloride storage bag 7, the barium hydroxide storage bag 8 and the sodium chloride storage bag 9 to obtain a mixture of ammonium chloride, barium oxide and sodium chloride;

2) the twist valve cover 5 is removed and the handle of the twist valve 4 is rotated to open the water bladder 6 and complete further mixing of the water with the mixture of ammonium chloride, barium oxide and sodium chloride.

The reaction mechanism is as follows:

1. the liquid water reacts with ammonium chloride and barium hydroxide chemically, and the processes of heat absorption, temperature reduction, ammonia gas generation and the like are accompanied; under the action of sodium chloride, the reaction product of the chemical reaction undergoes phase change, further absorbs heat and reduces the temperature, thereby realizing deep refrigeration;

2. ammonia gas generated by chemical reaction of liquid water, ammonium chloride and barium hydroxide is accumulated in the flexible inner container 2, and is discharged to a reserved space between the flexible inner container 2 and the flexible shell 1 after the pressure reaches the critical exhaust pressure of the one-way pressure limiting exhaust valve 3; the flexible shell 1 expands and is far away from the flexible inner container 2, so that supercooling protection is realized; the low-temperature state generated by deep refrigeration in the flexible inner container 2 is conducted to the flexible outer shell 1 through the self structure of the flexible inner container 2 and the ammonia atmosphere, so that slow release use is realized.

The extrusion and the rotation can be completed manually, and the device belongs to the conventional operation of personnel; the chemical reaction between liquid water and ammonium chloride and barium hydroxide, and the phase change of the reaction product of the chemical reaction under the action of sodium chloride are common knowledge in the industry.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and it is obvious for a person skilled in the art to modify the specific technical solutions described in the foregoing embodiments or to substitute part of the technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions protected by the present invention.