RU213213U1 - Thermal container for storage and transportation of infusion solutions - Google Patents

Abstract

The utility model relates to the field of medicine, in particular to devices for storing and transporting infusion solutions, namely to a thermal container for storing and transporting infusion solutions at low temperatures. In a thermal container for storage and transportation of infusion solutions, which includes a body with a heater and a control unit located inside it and an associated power source and heating elements, while the body is divided into compartments due to a partition, according to the utility model, the body walls contain two layers: an inner layer of polystyrene foam and an outer one made of Cryogel Ζ material, and a Peltier element was used as heating elements, connected to a self-regulating heating cable, which is located in the inner layer of polystyrene foam and a partition dividing the housing into compartments. The technical result consists in providing high thermal insulation properties while maintaining optimal energy efficiency.

Description

The utility model relates to the field of medicine, in particular to devices for storing and transporting infusion solutions, namely to a thermal container for storing and transporting infusion solutions at low temperatures.

Closest to the claimed technical solution is a thermal container for storage and transportation of infusion solutions (Thermocontainer with automatic temperature control of infusion solutions: patent RU 2487687, Russian Federation, application RU 2011150882, application 12/14/2011, publ. 07/20/2013), which contains a housing with carrying handles and padded shoulder strap. The outer cover of the case is made of moisture resistant fabric. The body is made in the form of a parallelepiped and a trough-shaped top hinged cover fixed above it. The walls, the bottom of the case and the top hinged cover are a rigid thermally insulating frame made of insulation. A heat-insulating gasket with a heat-reflecting screen is fixed on the top hinged cover. Heating elements are placed in the housing cavity. On the front wall of the case on the outside there is a pocket for the cable to the power source and an electronic control unit electrically connected to the electric heaters, with a connector for connecting to the on-board network of a vehicle, such as an ambulance, and light indicators. A vertical partition made of insulation is fixed in the cavity of the thermal container body, which divides the internal volume of the body into small and large compartments, in each of which an individual fabric cover of the appropriate size is mounted, in the bottom part of which a through hole is made in the center. A heat-reflecting screen is fixed on the entire inner surface of the small and large compartments. Each compartment is equipped with its own temperature sensor to control and maintain the temperature regime. A fan is attached to the bottom of each compartment under the heating element in the center. At the corners of the compartments under the fabric cover there are stands made of polyethylene foam or isolon. The top hinged cover of the thermocontainer is fixed on the body with the help of a zipper. This device was taken as a prototype.

The disadvantage of the prototype is the relatively low efficiency of the device at low temperatures due to the use of electric heaters and the implementation of a heat-reflecting screen. This configuration provides sufficiently high energy consumption with relatively low thermal insulation.

The technical problem is the need to develop a highly efficient thermal container for storing and transporting infusion solutions, devoid of the above disadvantages.

The technical result consists in providing high thermal insulation properties while maintaining optimal energy efficiency.

The technical result is achieved by the fact that in a thermal container for storage and transportation of infusion solutions, including a housing with insulation and located inside the control unit and associated power source and heating elements, while the housing is divided into compartments due to the partition, according to the utility model of the housing wall contain two layers: an inner layer of expanded polystyrene and an outer layer of Cryogel Ζ material, and as heating elements a Peltier element is used, connected to a self-regulating heating cable, which is located in the inner layer of expanded polystyrene and a partition dividing the body into compartments.

In the most preferred embodiment, in the compartment intended for infusion solutions, there are removable partitions with holes, while between the lower wall of the case and the removable partitions there is a lower fixed partition with holes, under which there are fans connected to the control unit on the lower wall of the case.

This design provides the highest thermal insulation properties while maintaining optimal energy efficiency. Expanded polystyrene provides optimal rigidity and has a minimum coefficient of thermal conductivity. The use of Cryogel Ζ significantly increases the thermal insulation properties of the container. The Peltier element provides effective cooling of solutions, which is additionally facilitated by holes in the partitions (air gaps). Heating is provided by a self-regulating heating cable.

The claimed device is illustrated by a drawing, where the figure shows a sectional image of a thermal container.

Thermal container for storage and transportation of infusion solutions contains a body 1 containing two layers: inner 2 made of expanded polystyrene and outer 3 made of Cryogel Ζ material. The thermal container also contains a control panel (block) 4, the front part of which is located partially outside the housing 1 to enable external control of the device. In addition, there is a thermal container charger 5, the electrical connector of which is located outside the case 1. Inside the case there is a battery 6 connected to the charger 5 and the control panel 4. In the case 1 there is a partition 7 made of expanded polystyrene, forming a compartment for infusion solutions. At the same time, a self-regulating heating cable 8 is located inside the partition 7 and the corresponding part of the inner 2nd layer of the housing 1. Removable partitions 9 with holes for air circulation are located inside the compartment for infusion solutions. Also between the lower wall (bottom) of the housing 1 and the partitions 9 is the bottom fixed partition of the compartment 10 with holes. On the bottom wall of the housing 1 under the partition 10 are fans (not shown in the drawing). Also in the lower part of the housing 1 is a Peltier element (not shown in the drawing) connected to the cable 8. Partitions 9, 10 are made of polystyrene. Also inside the housing is a temperature sensor (not shown in the drawing) associated with the control panel 4.

The claimed device works as follows.

The user opens the container and installs the infusion solutions inside the body 1 in a special compartment separated by a partition 7. If necessary, to regulate the volume and / or number of cells for solutions, the user removes the partitions 9. At the same time, the control panel 4 displays the temperature inside the compartment for storing solutions, which obtained from a temperature sensor. The user sets the required temperature and the control panel, if necessary, activates either the Peltier element, or fans, or a self-regulating heating cable 8. The temperature is constantly controlled by a temperature sensor. When the battery 6 is discharged, the user connects the charger to the network (for example, the on-board network of the car).

The claimed utility model is illustrated by an example.

To study the thermal insulation properties and energy efficiency, bench tests were carried out. Two samples were collected for the experiment. Sample 1 was assembled according to the claimed utility model, Sample 2 was based on the design features characteristic of the prototype device.

Infusion solutions were placed in each sample, the temperature of which corresponded to a value of 22°C. After that, a mode was set on the samples that ensured the maintenance of the initial temperature of the solutions, and the samples were placed in cryochambers, inside which the temperature was -25°C. At the same time, to ensure equal conditions, the battery of Sample 1 was disconnected and both devices were powered from the network. The experiment was carried out for two hours, constantly monitoring the temperature inside the samples. At the end of the experiment, the temperature inside Sample 1 was 22°C and inside Sample 2 the temperature was 20°C. At the same time, the energy consumption of Sample 2 was 15% higher than that of Sample 1.

Thus, the claimed utility model provides high thermal insulation properties while maintaining optimal energy efficiency.

Claims (1)

Thermal container for storage and transportation of infusion solutions, including a body with a heater and a control unit located inside it and an associated power source and heating elements, while the body is divided into compartments due to a partition, characterized in that the body walls contain two layers: expanded polystyrene and an outer one made of Cryogel Z material, and as heating elements a Peltier element was used, connected to a self-regulating heating cable, which is located in the inner layer of expanded polystyrene and a partition dividing the body into compartments, in the compartment intended for infusion solutions there are removable partitions with holes, while between the bottom wall of the case and removable partitions there is a lower non-removable partition with holes, under which there are fans connected to the control unit on the bottom wall of the case, in addition, a thermal container for storing and transporting infusion solutions includes a temperature sensor connected to the control unit.

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