Anti-freezing and defrosting ultralow-temperature air conditioner heat pump system for biological medicine storage

Abstract

The utility model discloses an anti-freezing and defrosting ultralow-temperature air-conditioning heat pump system for biological medicine storage, relates to the field of air-conditioning heat pump equipment, and aims to solve the problems that the heating performance of an evaporator is affected and even equipment is damaged due to the fact that frost is easily formed on the surface of the evaporator of the air-conditioning heat pump system in a low-temperature environment. A protection frame is arranged on the side edge of the evaporator, a heating cavity is formed in the protection frame, a heating pipe is fixedly connected to the heating cavity and located on the side edge of the evaporator, a fan is arranged on the other side of the heating pipe, a water drainage cavity is formed in the side edge of the heating cavity and located below the evaporator, and a water outlet is formed in the side edge of the water drainage cavity. The evaporator has the advantages that condensed beads on the evaporator are blown off through the fan, the heating pipe heats airflow, the temperature around the evaporator is increased, dryness and temperature around the evaporator are guaranteed, and the evaporator is prevented from being frosted.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning heat pump equipment technical field especially is biological medicine storage with freeze -proof defrosting's ultralow temperature air conditioning heat pump system. BACKGROUND

[0002] Biological medicine storage is a field with extremely high temperature control requirements, because the stability and effective period of medicine depend on the temperature condition of storage environment to a great extent, in order to ensure the quality and safety of biological medicine product, the storage environment must have the ability of precise temperature control, humidity regulation and freeze and frost prevention.

[0003] The existing heat pump system faces many challenges in actual operation process, especially in cold season, the performance of heat pump system is often seriously affected in low temperature environment, in winter or low temperature season, the temperature of heat pump heat exchanger is often lower than the dew point temperature of surrounding air. This temperature difference causes the heat exchanger surface fin to accumulate a large amount of condensate in the heating process. When the temperature further drops below 0 DEG C, these condensate quickly freezes into frost, forming layer after layer of frost. With the passage of time, frost gradually covers the entire evaporator surface, and blocks the gap of evaporator fin. This not only increases the wind resistance, but also significantly reduces the ventilation per hour, which further leads to a sharp decline in system heating capacity.

[0004] The decline of heating capacity directly affects the stability of biological medicine storage environment. In order to meet the storage requirements, the heat pump system has to increase power operation, but this brings new problems. The exhaust temperature of compressor will rise sharply under the condition of poor exhaust, and the equipment is prone to high pressure fault. The lubricating oil in the compressor under high pressure for a long time is easy to carbonize and turn black, which not only reduces the lubrication effect, but also aggravates the wear of compressor. When the flow is insufficient, the compressor may even be burned out due to overheating, causing serious economic loss and safety hazard. UTILITY MODEL CONTENTS

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a biological medicine storage freeze -proof defrosting's ultralow temperature air conditioning heat pump system, which effectively solves the problem that the evaporator surface of air conditioning heat pump system is easy to form frost in low temperature environment, thereby affecting the heating performance of evaporator, and even causing equipment damage.

[0006] To achieve the above object, the utility model provides the following technical scheme: the utility model discloses an evaporimeter, the side of evaporimeter is equipped with the protection frame, is equipped with heating cavity on the protection frame, heating cavity is fixedly connected with heating pipe on, heating pipe is located the side of evaporimeter, one side of heating pipe is equipped with the fan, the side of heating cavity is equipped with the drainage cavity, and the drainage cavity is located the below of evaporimeter,

[0007] The heating pipe has a plurality of heating pipes, and the plurality of heating pipes are fixedly connected with a support plate, and the support plate is fixedly connected with the protection frame.

[0008] Preferably, the fan is rotatably connected with a housing, one side of the housing is fixedly connected with a communication pipe, and the communication pipe is fixedly connected with the support plate.

[0009] Preferably, the protection frame is fixedly connected with two symmetrically distributed guard plates, the two guard plates are located on the front and back sides of the evaporimeter, and the guard plates are provided with airflow holes.

[0010] Preferably, the drainage cavity is provided with a flow guide plate, and the flow guide plate is fixedly connected with the protection frame.

[0011] Preferably, the flow guide plate comprises a first plate body and a second plate body, the second plate body is located above the first plate body, and the first plate body and the second plate body are both inclined surface structures at the upper ends.

[0012] Preferably, a plurality of first flow guide grooves are arranged on the first plate body, a plurality of second flow guide grooves are arranged on the second plate body, and the first flow guide grooves and the second flow guide grooves are staggered.

[0013] Compared with the prior art, the utility model has the following prominent advantages:

[0014] The utility model discloses a fan and heating pipe import certain temperature airflow to evaporimeter, through the gentle airflow, on the one hand, the condensation bead on the evaporimeter can be blown down, avoids the water droplet on the evaporimeter and guarantees the dry environment around the evaporimeter, on the other hand, the warm airflow can improve the temperature around the evaporimeter, avoids the surrounding water vapor frost because of the temperature is too low, thereby avoids the frost situation of evaporimeter, guarantees the normal work of evaporimeter. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model.

[0016] Figure 2 It is the structure schematic view of the utility model and evaporimeter is omitted.

[0017] Figure 3 It is the fan connection structure schematic view of the utility model.

[0018] Figure 4 The utility model discloses a heating pipe connecting structure schematic view.

[0019] Figure 5 The utility model discloses a heating cavity cooperation structure schematic view.

[0020] Figure 6 The utility model discloses a first plate body and second plate body cooperation structure schematic view.

[0021] The figure mark: 1, evaporimeter;2, guard frame;3, heating cavity;4, heating pipe;5, fan;6, drainage cavity;7, support plate;8, shell;9, communication pipe;10, guard plate;11, airflow hole;12, first plate body;13, second plate body;14, first flow guide groove;15, second flow guide groove. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments;Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of the utility model protection.

[0023] Please refer to the drawings of the embodiments of the utility model Figures 1-6 The utility model discloses a kind of biological medicine storage with freeze-proof defrosting's ultra-low temperature air-conditioning heat pump systems: including evaporimeter 1, the side of the evaporimeter 1 is equipped with guard frame 2, the guard frame 2 is equipped with heating cavity 3, the heating cavity 3 is fixedly connected with heating pipe 4, the heating pipe 4 is located in the side of evaporimeter 1, the other side of the heating pipe 4 is equipped with fan 5, the side of the heating cavity 3 is equipped with drainage cavity 6, the drainage cavity 6 is located below evaporimeter 1, the heating pipe 4 has multiple, multiple heating pipe 4 is fixedly connected with support plate 7, the support plate 7 is fixedly connected with the guard frame 2.

[0024] The two interfaces of the evaporator 1 are connected in the heat pump system, the evaporator 1 is suspended above the protection frame 2, the heating pipe 4 is at the same height as the evaporator 1, the plurality of heating pipes 4 are horizontally placed, one end of the heating pipe 4 is opposite to the fan 5, the other end of the heating pipe 4 is opposite to the evaporator 1, in the rotating process of the fan 5, the airflow generated by the fan 5 acts on the evaporator 1 through the heating pipe 4, the airflow makes the water droplets on the evaporator 1 fall, avoids the frost on the surface of the evaporator 1, the heating pipe 4 is above the heating cavity 3, the heating cavity 3 has the function of heating the heating pipe 4, the heating pipe 4 is kept at a certain temperature through the action of the heating cavity 3, after the airflow of the fan 5 passes through the heating pipe 4, the temperature of the airflow will rise, the relatively warm airflow can keep the evaporator 1 at a certain temperature on the one hand, avoid the frost and ice on the surface of the evaporator 1, on the other hand, also promote the water droplets on the evaporator 1 to evaporate, reduce the water vapor around the evaporator 1, and protect the normal operation of the evaporator 1; the drainage cavity 6 is located directly below the evaporator 1, the opening of the drainage cavity 6 is located at the side of the protection frame 2, the liquid water droplets falling from the evaporator 1 flow out from the side of the protection frame 2 through the drainage cavity 6; the heating pipe 4 has a plurality of support plates 7 at the left and right ends of the heating pipe 4, the two support plates 7 have cavities in the middle, and the cavities are communicated with the heating cavity 3.

[0025] The shell 8 at the left end of the fan 5 is a protective cover, the shell 8 has a plurality of through grooves, and the communication pipe 9 at the right side of the shell 8 has the functions of gathering wind and guiding flow. Under the action of the communication pipe 9, the airflow of the fan 5 can be more concentrated into the pipe hole of the heating pipe 4, and then act on the evaporator 1 through the heating pipe 4.

[0026] The two protection plates 10 are located at the front and rear sides of the evaporator 1 respectively, and the two protection plates 10 each have a plurality of airflow holes 11. The airflow holes 11 are provided with filter screens. The airflow holes 11 and the filter screens can prevent external sundries from entering the position of the evaporator 1, and have the function of preventing sundries. Meanwhile, the airflow holes 11 and the filter screens will not affect the exchange of air around the evaporator 1, and can meet the requirement of normal operation of the evaporator 1.

[0027] The drainage cavity 6 is provided with a flow guide plate at the upper end. The liquid on the evaporator 1 falls into the drainage cavity 6 through the flow guide plate. The flow guide plate is located between the drainage cavity 6 and the evaporator 1. The flow guide plate can prevent the evaporated gas in the drainage cavity 6 from adhering to the evaporator 1 upward, ensure the dryness around the evaporator 1, and avoid frost and freezing of the evaporator 1.

[0028] The flow guide plate is composed of a first plate body 12 and a second plate body 13, both of which are triangular prism structures, and the upper end faces of the first plate body 12 and the second plate body 13 are inclined surfaces, which can make the water drops on the first plate body 12 and the second plate body 13 slide downward better, the transverse length of the first plate body 12 is greater than that of the second plate body 13, and the second plate body 13 is located at the upper end of the first plate body 12, so that the first plate body 12 and the second plate body 13 can better shield above the drainage cavity 6, and the water drops fall from the joint between the first plate body 12 and the second plate body 13; further, in order to make the water drops on the first plate body 12 and the second plate body 13 fall better, a plurality of first flow guide grooves 14 are arranged on the first plate body 12, and a plurality of second flow guide grooves 15 are arranged on the second plate body 13, the first flow guide grooves 14 and the second flow guide grooves 15 are staggered, so that the gap at the joint of the first plate body 12 and the second plate body 13 will be larger, the first flow guide grooves 14 and the second flow guide grooves 15 can improve the drainage capacity of the first plate body 12 and the second plate body 13, and avoid condensation of water vapor above the flow guide plate.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application has been made with reference to the foregoing embodiments, for the skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A cryogenic air conditioning heat pump system for antifreeze and defrosting in biopharmaceutical storage, characterized in that: The utility model relates to an evaporator (1), the side of evaporator (1) is equipped with the protection frame (2), be equipped with heating cavity (3) on protection frame (2), heating cavity (3) is fixedly connected with heating pipe (4), heating pipe (4) is located the side of evaporator (1), the other side of heating pipe (4) is equipped with fan (5), the side of heating cavity (3) is equipped with drainage cavity (6), drainage cavity (6) is located the below of evaporator (1); The heating pipe (4) has a plurality of, a plurality of heating pipes (4) are fixedly connected with support plate (7), the support plate (7) is fixedly connected with the protection frame (2).

2. The anti-freezing and defrosting ultralow-temperature air conditioning and heat pump system for biological medicine storage according to claim 1, characterized in that: The fan (5) is rotatably connected with the shell (8), one side of the shell (8) is fixedly connected with the communication pipe (9), the communication pipe (9) is fixedly connected with the support plate (7).

3. The anti-freezing and defrosting ultralow-temperature air conditioning and heat pump system for biological medicine storage according to claim 1, characterized in that: The protection frame (2) is fixedly connected with two symmetrical distribution's guard board (10), two guard boards (10) are located the front and back of evaporator (1), the guard board (10) is equipped with airflow hole (11).

4. The anti-freezing and defrosting ultralow-temperature air conditioning and heat pump system for biological medicine storage according to claim 1, characterized in that: The drainage cavity (6) is equipped with the deflector, and the deflector is fixedly connected with the protection frame (2).

5. The anti-freezing and defrosting ultralow-temperature air conditioning and heat pump system for biological medicine storage according to claim 4, characterized in that: The deflector includes a first plate body (12) and a second plate body (13), the second plate body (13) is located above the first plate body (12), and the first plate body (12) and the second plate body (13) are both inclined surfaces at the upper end.

6. The anti-freezing and defrosting ultralow-temperature air conditioning and heat pump system for biological medicine storage according to claim 5, characterized in that: The first plate body (12) is equipped with a plurality of first flow grooves (14), the second plate body (13) is equipped with a plurality of second flow grooves (15), and the first flow grooves (14) and the second flow grooves (15) are staggered.

Images