CN216799318U

CN216799318U - Heat exchange device of compressed air freezing type dryer

Info

Publication number: CN216799318U
Application number: CN202122952025.XU
Authority: CN
Inventors: 杨周
Original assignee: Jiangxi Rongba Machinery Co ltd
Current assignee: Jiangxi Rongba Machinery Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-06-24
Anticipated expiration: 2031-11-29

Abstract

The invention relates to a heat exchange device of a compressed air freezing dryer, which comprises a machine body, wherein an air inlet pipe and an air outlet pipe are arranged on the machine body, an air outlet is arranged on the side wall of the machine body, an annular fixed plate for enclosing the air outlet is arranged on the outer side of the machine body, an air guide cylinder is arranged on the outer side wall of the fixed plate, a round table-shaped fixed cylinder is also arranged in an opening of the fixed plate, the minimum opening end of the fixed cylinder extends into the air outlet, a filter screen I for sealing the maximum opening end of the fixed cylinder is arranged in the air guide cylinder, a circular ring is welded on the inner side wall of the air guide cylinder positioned on the outer side of the filter screen I, a circle of connecting plate with an L-shaped vertical section is arranged in the opening of the circular ring, a cylinder is welded in the opening of the connecting plate, a cross and a filter screen II are respectively arranged on two sides in the cylinder, and a fan is arranged in the cylinder positioned between the cross and the filter screen II, the cross is connected with the filter screen I through a connecting rod. The invention has simple structure and convenient use.

Description

Heat exchange device of compressed air freezing type dryer

Technical Field

The invention relates to the technical field of air drying equipment, in particular to a heat exchange device of a compressed air freezing type dryer.

Background

The existing freezing type dryer is generally provided with a fan on a dryer body for heat exchange and cooling, hot air in the dryer is guided to the outside of the dryer, outside cold air is guided into the dryer, hot air is contacted with outside cold air for heat exchange and cooling, but when high-temperature gas in the dryer body is contacted with outside low-temperature gas, the hot air can be rapidly liquefied into water mist which is attached to fan blades, the water mist is gradually condensed into water drops to flow into the dryer body, and parts in the dryer body are corroded.

Although a freeze dryer, as disclosed in CN208449000U, solves the above problems and achieves the purpose of heat exchange and temperature reduction between the hot air in the dryer and the cold air outside, there are some obvious disadvantages, such as: 1. liquid possibly deposited in the exhaust hood is easy to flow back into the machine body through the exhaust outlet to influence internal equipment; 2. foreign matters or small animals easily enter the machine body through the exhaust pipe and the exhaust hood under the condition without the cold water tank, so that the internal parts are influenced, and the cold water tank occupies the space of the equipment installation part, so that the surrounding space of the equipment is reduced or the operation of people is prevented from being easily caused.

Disclosure of Invention

The invention aims to provide a heat exchange device of a compressed air freezing type dryer.

The technical problem of the invention is mainly solved by the following technical scheme:

a heat exchange device of a compressed air freezing dryer comprises a dryer body, wherein an air inlet pipe and an air outlet pipe are arranged on the dryer body, an air outlet is arranged on the side wall of the dryer body, an annular fixing plate for enclosing the air outlet is arranged on the outer side of the dryer body, an air guide cylinder is arranged on the outer side wall of the fixing plate, a round table-shaped fixing cylinder is further arranged in an opening of the fixing plate, the minimum opening end of the fixing cylinder extends into the air outlet, the maximum opening end of the fixing cylinder extends into the air guide cylinder, a filter screen I for sealing the maximum opening end of the fixing cylinder is arranged in the air guide cylinder, a circular ring is welded on the inner side wall of the air guide cylinder positioned on the outer side of the filter screen I, a circle of connecting plate with an L-shaped vertical section is arranged in the opening of the circular ring, the vertical end of the connecting plate is tightly attached to the outer side end face of the circular ring, the horizontal end of the connecting plate is positioned in the opening of the circular ring, and a circular cylinder is welded in the opening of the connecting plate, wherein both sides are provided with cross and filter screen II respectively in the drum, and are located the drum between cross and the filter screen II and are provided with the fan, be connected through the connecting rod between cross and the filter screen I, the inner diapire that is located the ring both sides in the guide duct all inclines to be provided with the guiding groove, and wherein the bottommost end of guiding groove all is close to the ring, and is located the guide duct bottom under the ring and is provided with the stock solution box, be provided with on the stock solution box and run through the guide duct diapire and with correspond the drain pipe that the guiding groove bottommost end is connected, wherein the stock solution box bottom is provided with the drain pipe.

As a preferable scheme, the fixing plate on the outer side of the air duct is locked on the outer side wall of the machine body through a bolt.

As a preferred scheme, the air exit is round platform column structure, wherein the minimum open end and the organism inside intercommunication of air exit, and the air exit size and the minimum open end size looks adaptation of fixed cylinder.

As a preferred scheme, the filter screen I is circular, wherein the diameter of the filter screen I is smaller than the inner diameter of the circular ring.

Preferably, the vertical end of the connecting plate is locked on the circular ring through a bolt.

The beneficial effects of the invention are:

1. when the water vapor in the air duct is condensed and collected at the bottom of the air duct, because the bottom wall of the inner side of the air duct and the minimum opening end of the fixed cylinder have larger height difference, the liquid at the bottom in the air duct cannot flow back into the machine body 1 through the fixed cylinder and the air outlet and influence parts in the machine body 1, and meanwhile, when the liquid drops down under the influence of gravity after being possibly condensed on the inner side wall of the fixed cylinder, the liquid is easy to flow to the maximum opening end of the fixed cylinder along the inclined plane of the fixed cylinder and drop into the air duct, and is difficult to flow back into the machine body.

2. According to the invention, the filter screen I and the filter screen II cannot influence the circulation of air flow, and can filter impurities in the air flow to prevent the impurities and the air flow from flowing into the machine body or prevent external small animals from entering the machine body through the filter screen I and the filter screen II to influence equipment, and can enable water vapor to be conveniently and rapidly condensed on the surface of the filter screen I to facilitate the condensation work of the water vapor.

3. When the condensed liquid in the air duct is collected at the bottom of the air duct, the condensed liquid flows into the guide groove and flows to the liquid outlet pipe along the inclined surface of the guide groove, the condensed liquid flows into the liquid storage box for storage, and the stored liquid discharged by the drain pipe is received by the container after a certain time, so that the influence on the working environment around the machine body or the safe operation of the machine body due to the overflow of the condensed liquid is prevented.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an exploded view of the present invention.

In the figure: 1. organism, 2, air exit, 3, fixed plate, 4, guide duct, 5, fixed cylinder, 6, filter screen I, 7, ring, 8, connecting plate, 9, drum, 10, cross, 11, fan, 12, filter screen II, 13, connecting rod, 14, guiding groove, 15, stock solution box, 16, drain pipe, 17, drain pipe, 18, bolt.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

The heat exchanger for compressed air freezing drier includes one drier body 1, one air inlet pipe and one air outlet pipe set on the drier body 1, and one air exhaust port 2 set on the side wall of the drier body 1.

Wherein be provided with the cyclic annular fixed plate 3 of encircleing air exit 2 in the organism 1 outside, as shown in fig. 1, 2, the welding has duct 4 on the fixed plate 3 lateral wall, and the fixed plate 3 in the duct 4 outside passes through bolt 18 locking on organism 1 lateral wall, and still welds the fixed cylinder 5 that is round platform form in the opening of fixed plate 3, the minimum open end of fixed cylinder 5 extends to in air exit 2, and the biggest open end of this fixed cylinder 5 extends to in duct 4, and air exit 2 is round platform column structure in this embodiment, wherein the minimum open end and the organism 1 inside intercommunication of air exit 2, and the minimum open end size looks adaptation of air exit 2 size and fixed cylinder 5.

When the hot air may condense into water drops on the inner side wall of the air guide duct 4 or on parts in the air guide duct 4 and drop on the bottom of the air guide duct 4 under the influence of gravity, or slide down to the bottom of the air duct 4 along the inner arc wall of the air duct 4, or drip down on the outer side wall of the fixed tube 5 outside the fixed plate 3 and finally flow to the bottom of the air duct 4, because the bottom wall of the inner side of the air duct 4 and the minimum opening end of the fixed cylinder 5 have larger height difference, the liquid at the bottom of the inner side of the air duct 4 can not flow back into the machine body 1 through the fixed cylinder 5 and the air outlet 2, and affects the parts in the machine body 1, and when the liquid drops down due to the gravity after being possibly condensed on the inner side wall of the fixed cylinder 5, it is easy to flow to the maximum opening end along the inclined surface of the fixed cylinder 5 and drop into the air guide cylinder 4, and is not easy to flow back into the machine body 1.

And be provided with in air duct 4 with the sealed filter screen I6 of the biggest open end of fixed section of thick bamboo 5, when cold and hot air crosses in filter screen I6 department, filter screen I6 then can not influence the circulation of air current, then can play the filtering action to the impurity in the air current in order to prevent impurity and air current inflow organism 1 or outside toy to cause the influence to equipment in getting into organism 1 through filter screen I6, three then can make the condensation work of filter screen I6 on the surface condensation in order to do benefit to steam that steam can be very convenient fast.

As shown in fig. 1 and 2, a circular ring 7 is welded on the inner side wall of the air duct 4 located outside the filter screen I6, the filter screen I6 is circular, wherein the diameter of the filter screen I6 is smaller than the inner diameter of the circular ring 7, so that the filter screen I6 can move in and out through an inner opening of the circular ring 7, a circle of connecting plate 8 with an L-shaped vertical cross section is arranged in the opening of the circular ring 7, wherein the vertical end of the connecting plate 8 is tightly attached to the outer end face of the circular ring 7 and is locked by a bolt 18, the horizontal end of the connecting plate 8 is located in the opening of the circular ring 7, a cylinder 9 is welded in the opening of the connecting plate 8, a cross 10 and a filter screen II12 are respectively arranged on two inner sides of the cylinder 9, a fan 11 is arranged in the cylinder 9 located between the cross 10 and the filter screen II12, and the cross 10 and the filter screen I6 are connected by a connecting rod 13.

When in use, the connecting plate 8 is locked and fixed on the circular ring 7 in the air guide cylinder 4 through the bolt 18, so that the cylinder 9 is fixed in the circular ring 7 to prevent the circular ring 9 from moving, at the moment, the cross 10 on the cylinder 9 extrudes the filter screen I6 through the connecting rod 13 to enable the filter screen I6 to be tightly attached to the maximum opening end of the fixed cylinder 5 to seal the fixed cylinder 5, the filter work of the filter screen I6 on the air flow passing through the fixed cylinder 5 is prevented from being influenced due to a large gap between the two, meanwhile, when the air flow needs to be maintained and other operations, the bolt 18 on the connecting plate 8 is only required to be screwed down, the connecting plate 8 is pulled out from the circular ring 7 to the right, so that the cylinder 9 is pulled out from the circular ring 7, the cylinder 9 drives the filter screen I6 to be pulled out from the circular ring 7 to the right through the cross 10 and the connecting rod 13, and finally the parts are pulled out from the air guide cylinder 4 to be maintained and other operations, and the installation steps are reversed, so that the parts in the air guide cylinder 4 are detachably installed, thereby facilitating the disassembly and assembly work.

When the fan 11 works, suction force is generated, so that hot air in the machine body 1 is pumped out through the fixed cylinder 5, the filter screen I6, the air guide cylinder 4, the cylinder 9 and the filter screen II12 and is contacted with external air in the pumping-out process to achieve the effect of heat exchange and temperature reduction, and the filter screen II12 can achieve the same technical effect as the filter screen I6 in the process.

Meanwhile, in order to facilitate the discharge work of the condensed liquid in the air guide cylinder 4 and prevent the condensed liquid from overflowing, as shown in fig. 1 and 2, guide grooves 14 are obliquely arranged on the inner bottom wall of the air guide cylinder 4 at two sides of the circular ring 7, wherein the bottommost ends of the guide grooves 14 are adjacent to the circular ring 7, a liquid storage box 15 is arranged at the bottom of the air guide cylinder 4 right below the circular ring 7, a liquid outlet pipe 16 penetrating through the bottom wall of the air guide cylinder 4 and connected with the bottommost ends of the corresponding guide grooves 14 is arranged on the liquid storage box 15, and a drain pipe 17 is arranged at the bottom end of the liquid storage box 16. When the condensed liquid in the air duct 4 collects at the bottom of the air duct, the condensed liquid flows into the guide groove 14 and flows to the liquid outlet pipe 16 along the inclined surface of the guide groove, the condensed liquid flows into the liquid storage box 15 to be stored, and after a certain time, the stored liquid discharged by the drain pipe 17 is received by the container through opening the drain pipe 17, so that the condensed liquid is prevented from overflowing to influence the working environment around the machine body 1 or the safe operation of the machine body.

The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and is not to be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A heat exchange device of a compressed air freezing dryer comprises a dryer body, wherein an air inlet pipe and an air outlet pipe are arranged on the dryer body, and an air outlet is arranged on the side wall of the dryer body, the heat exchange device is characterized in that an annular fixing plate for enclosing the air outlet is arranged on the outer side of the dryer body, an air guide cylinder is arranged on the outer side wall of the fixing plate, a round table-shaped fixing cylinder is further arranged in an opening of the fixing plate, the minimum opening end of the fixing cylinder extends into the air outlet, the maximum opening end of the fixing cylinder extends into the air guide cylinder, a filter screen I for sealing the maximum opening end of the fixing cylinder is arranged in the air guide cylinder, a ring is welded on the inner side wall of the air guide cylinder positioned on the outer side of the filter screen I, a circle of connecting plate with an L-shaped vertical section is arranged in the opening of the ring, the vertical end of the connecting plate is tightly attached to the end face of the outer side of the ring, and the horizontal end of the connecting plate is positioned in the opening of the ring, the air guide device is characterized in that a cylinder is welded in an opening of the connecting plate, a cross and a filter screen II are respectively arranged on two sides in the cylinder, a fan is arranged in the cylinder between the cross and the filter screen II, the cross is connected with the filter screen I through a connecting rod, guide grooves are obliquely arranged on inner bottom walls on two sides of a circular ring in the air guide cylinder, the bottom ends of the guide grooves are adjacent to the circular ring, a liquid storage box is arranged at the bottom of the air guide cylinder right below the circular ring, a liquid outlet pipe penetrating through the bottom wall of the air guide cylinder and connected with the bottom end of the corresponding guide groove is arranged on the liquid storage box, and a drain pipe is arranged at the bottom end of the liquid storage box.

2. The heat exchanger of compressed air freezing dryer as claimed in claim 1, wherein the fixing plate outside the air duct is fastened to the outer side wall of the machine body by bolts.

3. The heat exchanger of compressed air freezing dryer as claimed in claim 1, wherein the air outlet is a truncated cone-shaped structure, wherein the smallest opening end of the air outlet is communicated with the inside of the dryer body, and the size of the air outlet is matched with the size of the smallest opening end of the fixed cylinder.

4. The heat exchanger of compressed air freezing dryer as claimed in claim 1, wherein the filter screen I is circular, wherein the diameter of the filter screen I is smaller than the inner diameter of the circular ring.

5. The heat exchanging device of a compressed air freezing dryer as claimed in claim 1, wherein the vertical end of the connecting plate is locked to the ring by a bolt.