KR100915427B1 - A serum quick freezer - Google Patents

Abstract

A blood plasma quick freezer is provided to prevent the degeneration of the plasma by alternately operating the direct freezing and indirect freezing at a one chamber. A blood plasma quick freezer comprises a refrigerator main body(1), a direct freezing unit and an indirect freezing unit. The refrigerator main body includes a door(11), a chamber(13), a drain tank(14), an outer case(15), a vacuum insulation panel and an insulation unit. The chamber and the drain cistern are connected with a drain hole(12). The vacuum insulation panel is adhered to the inner wall of the outer case. The insulation unit is formed between the outer case and the chamber. The direct freezing unit has a direct freezing pipe and a first evaporator. The direct freezing pipe is attached at the four direction side of the chamber. The indirect freezing unit blows the air into the chamber after exchanging the heat between the cool air in the chamber inside and a second evaporator. The indirect freezing unit is installed in the chamber inside.

Description

Plasma Quick Freezer {A serum quick freezer}

The present invention relates to a plasma quick freezer, and more particularly, to a plasma quick freezer which allows for quick and quick freezing of plasma packed and packed into packs.

As is well known, plasma is a liquid component excluding tangible components such as red blood cells, white blood cells, and platelets in the blood, and is a clear pale yellow neutral liquid.

If the anticoagulant is put into the blood and centrifuged or left at about 0 ° C, the plasma is divided into upper components and lower components into tangible components. In this case, the proportion of plasma is about 55% depending on the sexes.

Plasma is composed of about 90% water, 7 ~ 8% plasma protein, and other lipids, sugars, inorganic salts, and nonprotein nitrogenous compounds containing urea, amino acids, and uric acid. Freshly frozen plasma can be stored for 1 year at -18 ° C or less.

In order to secure a large amount of fresh frozen plasma that has not been altered, it depends on how quickly the extracted plasma can be quickly frozen, and rapidly freezing the plasma allows the extraction of many constituents such as red blood cells.

However, the plasma quick freezer currently in use does not have a rapid freezing technology that can completely block the alteration of the plasma, so the plasma that has been difficult to extract due to the alteration has been discarded.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the object of which is to quickly and rapidly freeze the plasma packaged and packed in the pack faster and open the door plasma inside the chamber This is to minimize the loss of cold air inside the chamber when loading and unloading.

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It is also an object of the present invention to prevent the direct cooling pipe attached to the outer surface of the chamber from being separated from the outer surface of the chamber by contraction and expansion according to temperature change.

In addition, an object of the present invention is to make the condensation more smoothly while the door side defrost can be removed by using the heat contained in the high temperature and high pressure gas refrigerant sent from the compressor to the condenser.

In addition, an object of the present invention is to be able to evaporate the defrost water collected in the drain tank by using the heat contained in the high temperature and high pressure gas refrigerant sent from the compressor to the condenser.

In order to achieve the object of the present invention, the front is provided with a door, the chamber and the drain tank communicating with each other by the drain hole is provided up and down inside, a vacuum insulation panel is attached to the inner wall of the outer case, A refrigerator body having a heat insulation part formed by urethane foam between the outer case and the chamber; A direct cooling unit configured to attach a direct cooling pipe to upper, lower, left, right and rear surfaces of the chamber to form a first evaporator; It is provided on the inner upper surface of the chamber and consists of an intercooling unit for exchanging the cold air inside the chamber with the second evaporator and forcibly blowing it back into the chamber, and prints the temperature inside the chamber on the front surface of the upper part of the refrigerator in real time. And a display unit including a button operation unit to display a temperature inside the chamber on a screen or to set a temperature by a button operation, and the upper and lower cold air formed on the front of the refrigerator body is made of transparent acrylic material. The shielding door is formed up and down separately, and further comprises a cold air shielding plate formed of a transparent acrylic material on the upper side of the upper cold air shielding door, wherein the vacuum insulation panel has a high vacuum multilayer film in which an outer packaging material is deposited with aluminum. The inner core material is urethane beam on the upper and lower part with a polypropylene film in between. A heat insulating material made of cold or iced pink, wherein the intercooling part is provided on the inner upper surface of the chamber and has a suction part and a discharge part formed on the front and rear sides thereof, and a ventilation fan provided inside the cover to face the suction part side of the cover. And a second evaporator provided inside the rear cover of the ventilation fan, wherein the door is configured to pass a high pressure pipe between the compressor and the condenser.

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The drain tank may further include a heating unit in which a high pressure pipe between the compressor and the condenser is formed in a coil shape.

In addition, the ventilation fan is characterized in that configured to be on / off according to the opening and closing of the door.

As described above, the present invention uses a vacuum insulation panel and operates a single chamber in parallel with direct cooling and liver cooling to quickly freeze and rapidly freeze plasma packed in a pack, thereby without altering the plasma. The effect of securing a lot of fresher frozen plasma and the upper and lower cold air shield doors separated from each other in the front part of the chamber and the cold air shield plate on the upper side of the upper cold air shield door are opened to open the door. It is possible to minimize the loss of cold air in the chamber when the plasma is added to or taken out of the chamber, thereby maintaining the temperature in the chamber in a quenched state.

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In addition, the present invention by using the heat contained in the gas refrigerant of the high temperature and high pressure sent from the compressor to the condenser so that the door side defrost can be achieved while the condensation can be made more smoothly by the door side defrost is removed more quickly Not only can it be made, there is an effect that can further increase the refrigeration efficiency by the refrigeration cycle.

In addition, the present invention allows the defrost water collected in the drain tank to be evaporated by using the heat contained in the high temperature and high pressure gas refrigerant sent from the compressor to the condenser, the hassle and inconvenience of collecting and treating the defrost water separately There is also an advantage that can be solved.

1 is a perspective view showing the appearance and internal structure of the present invention.

2 is a longitudinal cross-sectional view of FIG.

3 is a cross-sectional view taken along the line A-A of FIG.

Figure 4 is a cross-sectional view showing a vacuum insulation panel structure of the present invention.

5 is a circuit diagram showing a refrigeration cycle of the present invention.

* Explanation of symbols for main parts of the drawings

1: freezer body

  11: door 12: drain hall

  13: Chamber 14: Drain tank

  15: Outer case 16: Vacuum insulation panel

  17: heat insulation unit 19: display unit

2: Direct cooling part

  21: direct cooling pipe 22: first evaporator

  23: Tape

3: liver cold part

  31: Cover 32: ventilation fan

  33: second evaporator

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the present invention according to the embodiment.

1 is a perspective view showing the appearance and internal structure of the present invention.

As shown in the present invention, the door 11 is provided at the front of the freezer body 1, the inside of the freezer body 1 is a chamber for rapidly freezing the plasma extracted and packaged in a pack ( 13 is provided, a plurality of trays (13A) are provided at intervals in the vertical direction so that the inside of the chamber (13) can be stored by stacking the plasma packed in a pack, the trays (13A) The guide rails 13B provided on both sides of the chamber 13 are configured to slide in or out of the chamber 13 in a sliding manner.

In addition, the upper and lower cold air shield doors 10 and 10A made of acrylic material are provided in order to minimize the loss of cold air inside the chamber 13 when the front door 11 of the chamber 13 is opened and the plasma is put in and taken out. The cold air shielding plate 10C made of acrylic is also formed on the upper side of the upper cold air shield door 11.

In addition, a drain tank 14 is provided at a lower side of the chamber 13, and the drain tank 14 is configured to communicate with each other by a drain hole 12 formed in the bottom surface of the chamber 13. On the inner upper surface of the 13, the intercooling part 3 for exchanging the cold air inside the chamber 13 at a lower temperature is forcibly blown.

At the same time, the upper front portion of the refrigerator main body 1 displays a printer 18 which prints the temperature state inside the chamber 13 in real time, and displays the current temperature inside the chamber 13 to the outside, and at the same time, the button control unit 19A. The display unit 19 is provided to enable the temperature inside the chamber to be set to a desired temperature. Here, reference numeral 18A denotes a printing paper.

FIG. 2 is a longitudinal cross-sectional view of FIG. 1. As shown in FIG. 1, in the present invention, a direct-cooling pipe 21 has a tape 23 on an outer surface of the chamber 13, that is, an upper, lower, left, right, and rear surfaces. To form a first evaporator 22 to form a direct cooling unit 2.

In addition, a heat insulating portion 17 is formed between the chamber 13 and the outer case 15 by urethane foam, and a vacuum insulation panel 16 is formed on the inner surface of the outer case 15 by urethane butyl. Are glued.

In general, the vacuum insulation panel 16 is composed of a porous filler and a barrier covering the same, and has a very low thermal conductivity by removing the gas inside the shell and maintaining the vacuum state for several years. In addition, since the heat insulating performance of the vacuum insulation panel depends on the vacuum in the interior, the heat insulating performance also decreases as the degree of vacuum decreases. In the above, the porous fillers are interconnected in the microscopic space of the structure to enable a smooth exhaust, the apparent density must be able to withstand the compression force due to the pressure difference, the outer shell must be self-adhesive while blocking the gas permeation.

In the present invention, as shown in FIG. 4, the outer packaging material is covered by applying a high vacuum multilayer film 163 deposited with aluminum, and the inner core material is provided with a polypropylene film 161 therebetween. Insulation board 162 made of urethane board or ice pink is used.

The vacuum insulation panel 16 first removes moisture and other organic matter remaining in the heat insulating material 162 which is an inner core material, and is then laminated under pressure with an appropriate thickness for a predetermined time with a polypropylene film 161 interposed therebetween. The insulating material 162 is wrapped with a high vacuum multilayer film 163 on which aluminum is deposited, and then a vacuum gas is inserted into the film 163 by inserting a getter agent, which is an organic gas and a moisture adsorbent.

Here, reference numeral 3 is an intercooling part, 12 is a drain hole, and 14 is a drain tank.

FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2, and the cover 31 having the suction part 31A and the discharge part 31B is provided on the inner upper surface of the chamber 13 at the front and rear of the chamber 13. The ventilation fan 32 is mounted inside, and the second evaporator 33 is provided at the rear side of the ventilation fan 32.

In the intercooling unit 3, the cool air in the chamber 13 is sucked into the cover 31 through the suction unit 31A by the rotation of the ventilation fan 32, and the sucked cold air is again supplied to the second evaporator ( After passing through the heat exchange 33, the temperature is further lowered to a lower temperature, and forcedly blown back into the chamber 13 through the discharge part 31B, thereby rapidly lowering the temperature in the chamber 13.

On the other hand, the ventilation fan 32 can be configured to be turned on / off according to the opening and closing of the door 11, the medium is a solenoid when the door 11 is closed using a solenoid valve (not shown) The valve is pressed so that the operation of the ventilation fan 32 is turned on, and when the door 11 is opened, the solenoid valve is returned to the original position, and the operation of the ventilation fan 32 is turned off. Can be.

5 is a circuit diagram showing a refrigeration cycle of the present invention.

As shown in the present invention, the present invention provides a compressor (4) for phase-changing a refrigerant into a gaseous state refrigerant at a high temperature and high pressure, and a high temperature and high pressure gas refrigerant introduced from the compressor (4) as a liquid refrigerant at room temperature and high pressure. A condenser 5 for condensation, an expansion valve 7 for converting a liquid refrigerant at room temperature and a high pressure introduced from the condenser 5 into a mixed refrigerant of a low-temperature low-pressure gas liquid, and a liquid in the refrigerant introduced from the expansion valve 7 It consists of the 1st evaporator 22 and the 2nd evaporator 33 which take heat from surroundings, while a refrigerant | vapor evaporates.

In addition, an accumulator for separating the gas refrigerant and the liquid refrigerant introduced from the first evaporator 22 and the second evaporator 33 between the first evaporator 22 and the second evaporator 33 and the compressor 4 ( 8) is provided between the condenser (5) and the expansion valve (7) filter dryer for removing the water or foreign matter contained in the liquid refrigerant of the high temperature high pressure or low temperature high pressure condensed in the condenser (5) (6) is provided.

Then, the high pressure pipe 11A between the compressor 4 and the condenser 5 is configured to pass through the door 11 for the defrosting and condensation of the door 11 side, and is collected in the drain tank 14. In order to evaporate the defrosted water without being separately collected and treated, a heating portion 14A having a high pressure pipe 11A formed in a coil form is provided in the drain tank 14.

According to the present invention configured as described above, first, the compressor 4 changes the refrigerant into a high temperature and high pressure gas refrigerant, and the high pressure and high pressure gas refrigerant exchanges heat with the outside air in the condenser 5 through the high pressure pipe 11A. Phase change into a liquid refrigerant of the phase and then expands in the expansion valve (7) through the filter drier (6) and the liquid refrigerant introduced from the condenser (5) is phase-changed into a mixed refrigerant of low-temperature low-pressure gas liquid to form a direct cooling unit (2) It is sent to the 2nd evaporator 33 which comprises the 1st evaporator 22 and the intercooling part 3.

The mixed refrigerant of the low-temperature low-pressure gaseous liquid is converted into a low-temperature low-pressure gaseous refrigerant by taking away the heat of the outside air and evaporating, and the low-temperature low-pressure gaseous refrigerant is passed back through the accumulator (8) to the compressor (4), and the high-temperature high-pressure gas again. Phase change to the refrigerant is repeated continuously.

Accordingly, the chamber 13 is formed by the first evaporator 22 formed by attaching the direct-cooling pipe 21 to the outer side of the chamber 13, that is, the upper, lower, left, right, and rear sides of the chamber 13. The temperature of the inside of the (13) is lowered below -25 ℃, the operation by expansion to the second evaporator 33 of the intercooling section 3 together with the first evaporator 22 of the direct cooling section (2) If the temperature is lowered to -35 ° C within 30 minutes while the temperature inside the chamber 13 is drastically lowered, it is rapidly frozen while being kept down to -90 ° C by the heat insulation effect by the vacuum insulation panel 16. This is done.

This rapid freezing is operated only during the day from 7 am when the plasma is received and introduced into the chamber 13 to 7 pm when it is sent to the required place after the quick freezing, after which the cooling operation by the refrigeration cycle is stopped. By operating only the ventilation fan 32 of the cold part 3 is to perform a defrost function to remove the debris caught in the chamber 13 and the door (11).

Claims (9)

delete delete delete delete delete delete The door 11 is provided at the front part, and the chamber 13 and the drain tank 14 communicated with each other by the drain hole 12 are provided up and down inside, and a vacuum is provided on the inner wall of the outer case 15. A refrigerator body (1) to which a heat insulation panel (16) is attached, wherein a heat insulation portion (17) is formed between the outer case (15) and the chamber (13) by urethane foaming; A direct cooling unit (2) configured to attach a direct cooling pipe (21) to upper, lower, left, right, and rear surfaces of the chamber (13) to form a first evaporator (22); It is provided on the inner upper surface of the chamber 13 consists of an intercooling part (3) for exchanging the cold air inside the chamber 13 with the second evaporator 33 and forcibly blows the air into the chamber (13), The printer 18 for printing the temperature inside the chamber in real time on the front side of the upper part of the refrigerator body 1 and the button to display the temperature inside the chamber 13 on a screen or to set the temperature by button operation. A display unit 19 including an operation unit 19A is provided, The refrigerator body 1 has upper and lower cold air shield doors 10 and 10A formed on the front surface of the upper and lower air shield doors 10 and 10A, respectively. Further comprising a cold air shield plate 10C formed of an acrylic material, The vacuum insulation panel 16 wraps the outer packaging material by applying a high vacuum multilayer film 163 deposited with aluminum, and the inner core material is a urethane board or an ice pink on the upper and lower parts with a polypropylene film 161 therebetween. Laminated insulation 162 is used, The intercooling part 3 is provided on an inner upper surface of the chamber 13 and has a cover 31 having a suction part 31A and a discharge part 31B formed at the front and the rear, and a suction part 31A of the cover 31. Ventilation fan 32 provided inside the cover 31 toward the () side, and the second evaporator 33 provided inside the rear cover 31 of the ventilation fan 32, The door (11) is characterized in that the high pressure pipe (11A) between the compressor (4) and the condenser (5) is configured to pass through the rapid plasma freezer. The method of claim 7, wherein The drain tank (14) further comprises a heating section (14A) formed in the form of a coil of a high pressure pipe (11A) between the compressor (4) and the condenser (5). The method of claim 8, The ventilation fan 32 is a plasma rapid freezer, characterized in that configured to be on / off in accordance with the opening and closing of the door (11).