CN105650967A

CN105650967A - Manual power generation type phase change drive constant-temperature medical kit

Info

Publication number: CN105650967A
Application number: CN201610181196.8A
Authority: CN
Inventors: 臧润清; 曹人杰; 孙志利
Original assignee: Tianjin University of Commerce
Current assignee: Tianjin University of Commerce
Priority date: 2016-03-28
Filing date: 2016-03-28
Publication date: 2016-06-08

Abstract

The invention discloses a manual power generation type phase change drive constant-temperature medical kit. Two heat insulating material layers are arranged between the outer surface and the inner surface of a kit body. The outer layer is a common heat insulating material layer, and the inner layer is a phase change heat preserving material layer. An evaporator coil is embedded and laid in the phase change heat preserving material layer. An outdoor unit of a refrigerating system is arranged outside the outer surface of the kit body. The outdoor unit comprises a condenser, a throttle valve and a small compressor. A hand-operated power generator charges a small storage battery, the storage battery provides a power source for the compressor, and the compressor, the condenser, the throttle valve and the evaporator coil are sequentially connected through pipelines. The medical kit is small in size, low in mass and convenient to carry. The transport time can be prolonged, when a special situation happens, hand-cranking power generation can be achieved to continuously provide cooling capacity for the kit body, it is guaranteed that medical supplies and instruments in the kit body are not damaged, and the temperature in the kit body can be adjusted; the medical kit can adapt to multiple occasions, and the most prominent advantage is to guarantee that tasks are completed with quality and quantity guaranteed.

Description

Manual power generating type phase transformation drives constant temperature medical kit

Technical field

The present invention is a kind of constant temperature medical kit design, and a kind of phase transformation with electricity generated manually system specifically drives constant temperature medical kit.

Background technology

Low temperature environment becomes indispensable a kind of condition already in a lot of fields of daily life, the research and development manufacture of a lot of high-tech products, air-conditioning in hot summer, refrigerator of home freezing chilled food etc., especially in medicine medical treatment, depositing of medicaments, the storage of organs of living beings, transport etc. be unable to do without cryogenic conditions more. Under the demand of all actual lives, constant temperature medical kit arises at the historic moment, and the birth of constant temperature medical kit is daily life, especially brings very big effect in healing the wounded and rescue the dying. But As time goes on, the purposes of calorstat is more and more wider, the requirement of transport temperature is more and more lower, the requirement of haulage time is more and more longer, this proposes new challenge to the design that optimizes of calorstat, the new product expected has higher thermal adaptability, does not fear the generation of accident, namely higher haulage time adaptability in transportation.

The principle of existing conventional constant temperature medical kit is to save certain cold in the insulation material of couveuse, transportation is supplied to casing, and then maintains the low temperature environment in couveuse, but the cold of savings is limited, it is only capable of maintaining regular time, is generally 4 hours. Longer for haulage time, or occur in transit accident to delay the situation of haulage time, conventional vacuum medical kit is inefficient. Also having another kind of calorstat, its principle is to carry an accumulator in calorstat, and accumulator drives compressor work to provide cold to casing, and its shortcoming is in that the volume of accumulator is excessive, and weight is big, not readily portable.

Summary of the invention

All the solving the technical problem that of the present invention is to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of manual power generating type phase transformation drives constant temperature medical kit.

One manual power generating type phase transformation of the present invention drives constant temperature medical kit, two-layer adiabator layer is set between box outer surface and inner surface, one layer, outside is common insulation material layer, one layer, the inside is phase-transition heat-preserving material layer, at the embedded laying evaporator coil of phase-transition heat-preserving material layer, the off-premises station of refrigeration system is placed in outside box outer surface, and off-premises station includes condenser, choke valve and light duty compressor;Hand-operated electric generator is small battery charging, and accumulator provides power supply for compressor, and described compressor, condenser, choke valve and evaporator coil are sequentially connected with by pipeline.

Described common insulation material, generally refer to the material less than or equal to 0.12 of the heat conductivity when temperature is not higher than 350 DEG C, heat-barrier material can effectively prevent outdoor heat from entering in calorstat, to ensureing that the temperature inside the box plays a key effect, the selection of heat-barrier material will according to many-sides such as its heat-proof quality, environmental protection, prices.

Described phase-transition heat-preserving material refers to and varies with temperature and change form and can absorb or discharge the material of latent heat, and phase-change material is become liquid from solid-state or become the process of solid-state from liquid, and at this moment phase-change material by absorption or discharges substantial amounts of latent heat. Being characterized in when physical state changes, the temperature of material self almost remains unchanged before and after phase transformation completes, and forms a relatively wide temperature platform, absorbs when variations in temperature is minimum or discharges a large amount of latent heat. Its characteristic is automatic temperature-control, heat-conserving energy-saving multi.

Hand-operated electric generator is stored electronically in small battery by what produce, and accumulator provides stable voltage to drive compressor work. The cold that refrigeration system prepares continual is supplied to thermostatic box, it is ensured that it also can reach required cryogenic conditions in a long time.

Manual power generating type phase transformation of the present invention drives constant temperature medical kit, adds a small refrigeration systems and electricity generated manually system in the inside of calorstat. The advantage of this calorstat is in that volume is little, light weight, it is simple to carry. Haulage time can be extended, when there being special circumstances to occur, it is possible to hand power is continuously casing and provides cold, in guard box, Medicines and apparatus will not degenerate, can also regulating the temperature inside the box, it is adaptable to multiple occasion, the most prominent advantage is able to guarantee that guarantees both quality and quantity completes task.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments to the detailed description of the invention.

As shown in Figure 1, one manual power generating type phase transformation of the present invention drives constant temperature medical kit, two-layer adiabator layer is set between box outer surface 4 and inner surface 3, one layer, outside is common insulation material layer 2, and one layer, the inside is phase-transition heat-preserving material layer 1, at the embedded laying evaporator coil 5 of phase-transition heat-preserving material layer, the off-premises station of refrigeration system is placed in outside box outer surface, light duty compressor 6 and small battery 9 that the present invention uses are all small-sized, and volume is little, light weight, it is simple to carry. Carry hand-operated electric generator 10, namely the people carrying this calorstat uses hands rotating coil, make coil rotate in magnetic field, cause magnetic flux change produce faradic current, generation be electronically stored in accumulator 9, accumulator can provide stable voltage, drives compressor 6 to do work. Low-pressure gas in vaporizer 5 is sucked by compressor, is input in condenser 7 and carries out cooling down after adherence pressure, forms the liquid of cryogenic high pressure, again through choke valve 8 reducing pressure by regulating flow, enters vaporizer, complete kind of refrigeration cycle after forming low pressure liquid. So within certain time limit, it is possible to cold is provided endlessly to calorstat, maintains its cryogenic conditions, it is ensured that medicine or medical apparatus and instruments in case will not suffer damage.

Described evaporator coil, choice requirement is that light weight, heat exchange property be strong, reasonable price. So can reduce heat exchange area when preparing identical cold, and then reduce the volume of equipment. The refrigerant liquid of low-temp low-pressure absorbs the heat vaporization in phase-change material in coils, and low-pressure gas is siphoned away by compressor through the air entry of compressor, is calorstat and provides cold.

Described refrigeration system off-premises station includes light duty compressor, condenser and choke valve.Light duty compressor is as the heart of refrigeration system, its effect is constantly to extract the refrigeration machine steam in vaporizer out, it is discharged to again in condenser after being compressed and improving its pressure, condenser is with air for cooling medium, the refrigerant vapour of high pressure is condensed into refrigerant liquid, refrigerant liquid flows through choke valve, the effect of choke valve is that high pressure refrigerant liquid reducing pressure by regulating flow is become Low temperature low pressure liquid, the refrigeration machine liquid of low-temp low-pressure finally flows back in evaporator coil, continue to absorb the heat of surrounding medium and evaporate, complete kind of refrigeration cycle.

Described hand-operated electric generator is a kind of easy TRT, and its principle, with common generator not too big difference, is all that coil rotates in magnetic field so that magnetic flux changes and produces faradic current and induction electromotive force. Simply this electricity generation system power is manpower, and operator use hand moving winding. The power of generating is at about 100 watts. This device volume is little, it is simple to carry. The maximum characteristic of the present invention is just embodied in this hand-rail type electricity generation system.

Described small battery that is common accumulator, with the electricity generation system carried, therefore do not have too big requirement to the savings ability of accumulator, so just can select in type selecting that volume is little, the model of light weight as far as possible. Namely the burden of transport can be reduced. The topmost effect of this accumulator is to provide stable driving voltage for compressor.

Claims

1. a manual power generating type phase transformation drives constant temperature medical kit, it is characterized in that, two-layer adiabator layer is set between box outer surface and inner surface, one layer, outside is common insulation material layer, one layer, the inside is phase-transition heat-preserving material layer, at the embedded laying evaporator coil of phase-transition heat-preserving material layer, the off-premises station of refrigeration system is placed in outside box outer surface, and off-premises station includes condenser, choke valve and light duty compressor; Hand-operated electric generator is small battery charging, and accumulator provides power supply for compressor, and described compressor, condenser, choke valve and evaporator coil are sequentially connected with by pipeline.

2. a kind of manual power generating type phase transformation drives constant temperature medical kit according to claim 1, it is characterised in that described common adiabator layer refers to the material less than or equal to 0.12 of the heat conductivity when temperature is not higher than 350 DEG C.

3. a kind of manual power generating type phase transformation drives constant temperature medical kit according to claim 1, it is characterised in that described phase-transition heat-preserving material layer refers to and varies with temperature and change form and can absorb or discharge the material of latent heat.