阅读说明：本技术 一种低压冷冻干燥机 (Low-pressure freeze dryer ) 是由 叶才亮 于 2021-07-21 设计创作，主要内容包括：本发明公开了一种低压冷冻干燥机,属于电子行业用气设备领域,包括箱体、及由制冷剂输送管道顺序连接并形成回路的压缩机、冷凝器和蒸发器；在从冷凝器到蒸发器的制冷剂输送管道上设置有电子调节阀和冰压干燥过滤器,箱体包括底座、顶板、连接在底座与顶板之间的前壁、后壁和两个侧壁,冷凝器位于右侧壁的内侧、并固定在底座上,底座的底部具有叉车位；冷凝器和蒸发器分别位于两个侧壁的内侧,并均固定在底座上,蒸发器高于冷凝器,蒸发器的下端固定有支撑柱,蒸发器通过支撑柱固定在底座上,两侧壁均具有阵列排布的散热孔。改变电子节流阀开度来调节制冷剂流量,进而改变经换热后的冷空气量,从而可根据用户用气量调节以达到需求。(The invention discloses a low-pressure freeze dryer, which belongs to the field of gas equipment in the electronic industry and comprises a box body, a compressor, a condenser and an evaporator, wherein the compressor, the condenser and the evaporator are sequentially connected through a refrigerant conveying pipeline and form a loop; an electronic regulating valve and an ice pressure drying filter are arranged on a refrigerant conveying pipeline from a condenser to an evaporator, the box body comprises a base, a top plate, a front wall, a rear wall and two side walls, the front wall, the rear wall and the two side walls are connected between the base and the top plate, the condenser is positioned on the inner side of the right side wall and fixed on the base, and a fork parking space is arranged at the bottom of the base; the condenser and the evaporator are respectively positioned on the inner sides of the two side walls and are fixed on the base, the evaporator is higher than the condenser, the lower end of the evaporator is fixed with a support column, the evaporator is fixed on the base through the support column, and the two side walls are provided with radiating holes arranged in an array mode. The opening degree of the electronic throttle valve is changed to adjust the flow of the refrigerant, so that the cold air quantity after heat exchange is changed, and the air quantity can be adjusted according to the air consumption of a user to meet the requirement.)

1. A low-pressure freeze dryer comprises a box body, a compressor, a condenser and an evaporator, wherein the compressor, the condenser and the evaporator are sequentially connected through a refrigerant conveying pipeline to form a loop; the refrigerator is characterized in that an electronic regulating valve and an ice pressure drying filter are arranged on a refrigerant conveying pipeline from a condenser to an evaporator, a box body comprises a base, a top plate, a front wall, a rear wall and two side walls, the front wall, the rear wall and the two side walls are connected between the base and the top plate, the condenser is positioned on the inner side of the right side wall and fixed on the base, and a fork parking space is arranged at the bottom of the base; the condenser and the evaporator are respectively positioned on the inner sides of the two side walls and are fixed on the base, the evaporator is higher than the condenser, the lower end of the evaporator is fixed with a support column, the evaporator is fixed on the base through the support column, and the two side walls are provided with radiating holes arranged in an array mode.

2. The freeze dryer of claim 1, wherein the evaporator has an inlet fitting and an outlet fitting at an upper end thereof, both of which open to an exterior of the housing through the top plate.

3. The freeze dryer of claim 1, wherein the evaporator includes a heat pipe and a plurality of fins disposed outside the heat pipe, and a distance between two adjacent fins is 2.2 mm.

4. The freeze dryer of claim 1, wherein the heat dissipation holes on the side walls near the evaporator are distributed on the corresponding side walls below the evaporator.

5. The freeze dryer of claim 1, wherein the heat dissipation apertures are bar apertures.

Technical Field

The invention belongs to the field of gas equipment in the electronic industry, and particularly relates to a low-pressure freeze dryer.

Background

At present, the gas pressure generally used in the market electronic industry is smaller, usually less than 7bar, and most of the gas pressure used in the market is equipment with more than 8 bar. At present, the conventional refrigeration dryer uses a capillary tube as a throttling device, after the air consumption of a user is reduced, the capillary tube cannot be adjusted according to the actual air consumption of the user, the internal ice blockage of a refrigerant copper tube is easily caused, and the refrigeration dryer in the market is large in body type and inconvenient to carry.

Disclosure of Invention

The invention aims to provide a low-pressure freeze dryer to solve the problem that the existing freeze dryer cannot adjust a capillary tube according to air consumption.

In order to realize the purpose of the invention, the technical scheme is as follows: a low-pressure freeze dryer comprises a box body, a compressor, a condenser and an evaporator, wherein the compressor, the condenser and the evaporator are sequentially connected through a refrigerant conveying pipeline to form a loop; the refrigerator is characterized in that an electronic regulating valve and an ice pressure drying filter are arranged on a refrigerant conveying pipeline from a condenser to an evaporator, a box body comprises a base, a top plate, a front wall, a rear wall and two side walls, the front wall, the rear wall and the two side walls are connected between the base and the top plate, the condenser is positioned on the inner side of the right side wall and fixed on the base, and a fork parking space is arranged at the bottom of the base; the condenser and the evaporator are respectively positioned on the inner sides of the two side walls and are fixed on the base, the evaporator is higher than the condenser, the lower end of the evaporator is fixed with a support column, the evaporator is fixed on the base through the support column, and the two side walls are provided with radiating holes arranged in an array mode.

As a further alternative, the upper end of the evaporator is provided with an air inlet joint and an air outlet joint, and the air inlet joint and the air outlet joint are communicated to the outside of the box body through the top plate.

As a further alternative, the evaporator is internally provided with a radiating pipe and a plurality of radiating fins arranged outside the radiating pipe, and the interval between every two adjacent radiating fins is 2.2 mm.

As a further alternative, the heat dissipation holes on the side wall close to the evaporator are distributed on the corresponding side wall below the evaporator.

As a further alternative, the heat dissipation holes are bar-shaped holes.

The invention has the beneficial effects that: the electronic throttle valve can be used for adjusting the flow of the refrigerant entering the evaporator by changing the opening, and the amount of cold air after heat exchange is reduced when the flow of the refrigerant is reduced, so that the opening of the electronic throttle valve can be adjusted according to the air consumption of a user, the required amount of cold air is achieved, the blockage of a throttling part is also prevented, the ice pressure drying filter plays a role in filtering impurities and adsorbing trace moisture in the refrigerant, the blockage of the throttling part and the system is prevented, the impurities and trace moisture in the refrigerant are filtered, and the service performance and the refrigeration effect of equipment are ensured. This desiccator structural design is more small and exquisite convenient, and the fork truck spatial position of base can supply fork truck to consign, also can artifical transport, and convenient transport, removal have optimized the transportation advantage.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it should be understood that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a freeze dryer according to an embodiment of the present invention;

fig. 2 is a schematic view of the internal structure of a low-pressure freeze dryer provided in an embodiment of the present invention;

fig. 3 is a cross-sectional view of an evaporator of a freeze dryer provided by an embodiment of the present invention;

reference numerals: 1-compressor, 2-condenser, 3-evaporator, 4-electronic regulating valve, 5-ice pressure drying filter, 6-base, 7-top plate, 8-front wall, 9-rear wall, 10-side wall, 11-fork parking space, 12-support column, 13-heat dissipation hole, 14-air inlet joint, 15-air outlet joint, 16-heat dissipation pipe and 17-heat dissipation fin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention. It is to be understood that the drawings are provided solely for the purposes of reference and illustration and are not intended as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The invention is further described with reference to the following figures and specific embodiments.

Fig. 1 to 3 show a freeze dryer according to the present invention, which comprises a tank, a compressor 1, a condenser 2 and an evaporator 3, which are connected in sequence by refrigerant conveying pipes and form a circuit; an electronic regulating valve 4 and an ice pressure drying filter 5 are arranged on a refrigerant conveying pipeline from the condenser 2 to the evaporator 3, the box body comprises a base 6, a top plate 7, a front wall 8, a rear wall 9 and two side walls 10, the front wall 8, the rear wall 9 and the two side walls 10 are connected between the base 6 and the top plate 7, the condenser 2 is positioned on the inner side of the right side wall 10 and fixed on the base 6, and a fork truck 11 is arranged at the bottom of the base 6; condenser 2 and evaporimeter 3 are located the inboard of two lateral walls 10 respectively to all fix on base 6, evaporimeter 3 is higher than condenser 2, and the lower extreme of evaporimeter 3 is fixed with support column 12, and evaporimeter 3 passes through support column 12 to be fixed on base 6, and both sides wall 10 all has array arranged's louvre 13. The inner side is the side facing the inside of the device, and the outer side is the side facing the outside of the device.

The upper end of the evaporator 3 is provided with an air inlet joint 14 and an air outlet joint 15, the air inlet joint 14 and the air outlet joint 15 are both communicated to the outside of the box body through the top plate 7, the air inlet joint 14 is correspondingly connected with external hot air, and the air outlet joint 15 sends out cold air to the outside. The condenser 2 is provided with a fan facing the side close to the evaporator 3.

The opening of the electronic throttle valve can be adjusted according to the air consumption of a user, so that the flow of a refrigerant entering the evaporator 3 is adjusted, the amount of cold air after heat exchange is reduced when the flow of the refrigerant is reduced, the required amount of cold air is achieved, the blockage of a throttling part is also prevented, the ice pressure drying filter 5 plays a role in filtering impurities and adsorbing trace moisture in the refrigerant, the blockage of the throttling part and the system ice is prevented, the impurities and trace moisture in the refrigerant are filtered, and the service performance and the refrigeration effect of equipment are ensured.

The evaporator 3 has a heat dissipating pipe 16 therein and a plurality of heat dissipating fins 17 arranged outside the heat dissipating pipe 16, and an interval between adjacent two heat dissipating fins 17 is 2.2 mm. The evaporator 3 is internally composed of the radiating pipe 16 and the radiating fins 17, the contact surface of the radiating fins 17 and the radiating pipe 16 is large and tight, the distance adopts 2.2mm intervals, the heat transfer performance is good and stable, the air passing resistance is small, and the air-using requirement of the electronic industry is completely met.

The heat dissipation holes 13 on the side wall 10 close to the evaporator 3 are distributed on the side wall 10 corresponding to the lower part of the evaporator 3, namely corresponding to the side wall 10 and the condenser 2 on the opposite side, so that convection is formed favorably, a good heat dissipation effect is guaranteed, and the heat dissipation holes 13 can be strip-shaped holes.

The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.