CN210602711U

CN210602711U - Hot air circulation box

Info

Publication number: CN210602711U
Application number: CN201920883758.2U
Authority: CN
Inventors: 吴修兵
Original assignee: Nanjing Huaxing Pharmaceutical Equipment Co ltd
Current assignee: Nanjing Huaxing Pharmaceutical Equipment Co ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-05-22
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses a heated air circulation case, the burning machine comprises a burner, the drying chamber, the burning machine is equipped with combustion chamber and air intake, heat abstractor is connected to the combustion chamber, heat abstractor's lateral part still is equipped with the axial fan who is used for driving the air current flow to heat abstractor, a serial communication port, axial fan's air inlet end passes through circulating air union coupling in the top of drying chamber, circulating air pipe between axial fan and the drying chamber still is equipped with the condenser, the condenser includes that two coolings are responsible for and connects a plurality of cooling branch pipes that switch on in the cooling between being responsible for, the cooling is responsible for and is connected cooling device, cooling branch pipe passes through the wind scooper and connects circulating air pipe, cooling branch's lower extreme still is equipped with the condensate water dish, drainage device is. The utility model discloses can convert vapor to liquid from the gaseous state through the condenser, and then collect, discharge through the condensate water dish, realize dehumidification, the drying to the hot gas flow, promote the drying efficiency of medicine.

Description

Hot air circulation box

Technical Field

The utility model relates to a heated air circulation case belongs to drying equipment technical field.

Background

The hot air circulation box is widely applied to the field of medicine drying, the principle of the hot air circulation box is that hot air is utilized to dry and dehumidify medicines, when the hot air circulation box is used, the medicines to be dried are placed in hot air flow, and the internal moisture of the medicines is brought away through high temperature and the hot air flow, so that the medicines are dried. As can be seen from the above description, if the hot air for drying the medicine is recycled, the moisture in the medicine increases the humidity of the hot air; if the used hot air is directly discharged out of the drying chamber, heat waste is caused, and energy consumption is increased; therefore, when the hot air drying box is actually used, on the premise of small heat loss of hot air, the moisture in the hot air is effectively removed, and the hot air drying box has important significance for improving the working efficiency of the hot air drying box and reducing the energy consumption.

SUMMERY OF THE UTILITY MODEL

For solving the deficiencies of the prior art, an object of the utility model is to provide a hot air circulation box.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a heated air circulation case, includes combustor, drying chamber, the combustor is equipped with combustion chamber and air intake, heat abstractor is connected to the combustion chamber, heat abstractor's lateral part still is equipped with the axial fan who is used for driving the air current flow to heat abstractor, its characterized in that, axial fan's air inlet end passes through circulation wind union coupling in the top of drying chamber, and the circulation wind pipe between axial fan and the drying chamber still is equipped with the condenser, the condenser includes that two cooling are responsible for and connect in a plurality of cooling branch pipes that switch on in the cooling between being responsible for, the cooling is responsible for and is connected cooling device, the cooling branch pipe passes through the wind scooper and connects circulation tuber pipe, the lower extreme of cooling branch pipe still is equipped with the condensate water dish, drain system is connected to the condensate water dish.

Preferably, the air guide cover is connected to the circulating air pipe through an air pipe flange.

Preferably, the hot air circulation box is characterized in that a condensing coil is further arranged on the outer surface of the cooling branch pipe.

Preferably, in the hot air circulation box, the cooling device is a water circulation cooling device, and the cooling main pipe is flange-connected to the water circulation cooling device through a cooling pipe.

Preferably, the hot air circulation box is characterized in that the heat dissipation device is arranged on the side of the drying chamber, the heat dissipation device is further connected with an air inlet end of the burner through a smoke tube, the smoke tube is further connected with an air supply fan, and the smoke tube is further provided with an exhaust port.

Preferably, the hot air circulation box is characterized in that an air outlet of the air supply fan is further provided with a one-way valve.

Preferably, the combustion chamber is arranged at the bottom of the drying chamber, the lower end of the combustion chamber is connected with the base, and the upper end of the drying chamber is provided with the laminate.

Preferably, the base is connected with the combustion chamber through a plurality of base supports.

Preferably, the hot air circulation box is characterized in that the condensing coil is a copper pipe.

Preferably, an air inlet cover is further arranged between the circulating air pipe and the axial flow fan.

The utility model discloses the beneficial effect who reaches:

the utility model discloses can convert vapor to liquid from the gaseous state through the condenser, and then collect, discharge through the condensate water dish, realize dehumidification, the drying to the hot gas flow, promote the drying efficiency of medicine. Most of hot air flow generated by combustion enters the combustor again for combustion, so that the waste of heat is avoided, and the energy consumption of equipment is reduced. Tail gas in the heat abstractor and the tail gas that is used for dry medicine are two independent return circuits, mutual noninterference, avoid tail gas pollution medicine. The liquid in the water circulation cooling device can not enter the interior of the drying chamber.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a structural diagram of the condenser of the present invention;

the meaning of the reference symbols in the figures: 1-a combustor; 11-a combustion chamber; 12-an air inlet; 2-a drying chamber; 3-a base; 4-circulating air pipe; 5-a condenser; 7-air supply fan; 71-a one-way valve; 6-smoke tube; 21-layer plate; 22-a heat sink; 23-an axial flow fan; 24-an air inlet cover; 31-a base support; 51-blast pipe flange; 52-wind scooper; 53-cooling the main pipe; 531-cooling pipe flange; 54-cooling the manifold; 541-a condensing coil; 55-condensed water pan; 61-smoke outlet.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 2: the embodiment discloses a hot air circulation box, including combustor 1, drying chamber 2, combustor 1 is equipped with combustion chamber 11 and air intake 12, heat abstractor 22 is connected to combustion chamber 11, heat abstractor 22's lateral part still is equipped with the axial fan 23 that is used for driving the air current to flow to heat abstractor 22, a serial communication port, axial fan 23's air inlet end passes through circulation tuber pipe 4 and connects in the top of drying chamber 2, circulation tuber pipe 4 between axial fan 23 and the drying chamber 2 still is equipped with condenser 5, condenser 5 includes two cooling main pipes 53 and connects in a plurality of cooling branch pipes 54 that switch on in cooling main pipe 53 between cooling main pipe 53, cooling main pipe 53 connects cooling device, cooling branch pipe 54 passes through wind scooper 52 and connects circulation tuber pipe 4, the lower extreme of cooling branch pipe 54 still is equipped with condensate water tray 55, condensate water tray 55 connects drainage device. An air inlet cover 24 is also arranged between the circulating air pipe 4 and the axial flow fan 23.

Specifically, the wind scooper 52 is connected to the circulating air duct 4 through the air duct flange 51, and the air duct flange 51 is connected to a corresponding flange on the circulating air duct 4, so that the detachable connection between the whole condenser 5 and the circulating air duct 4 is realized.

In order to further increase the heat exchange performance of the cooling branch pipe 54, the outer surface of the cooling branch pipe 54 of the present embodiment is further provided with a condensing coil 541, and the condensing coil 541 is preferably a copper pipe.

The cooling device of the present embodiment is preferably a water circulation cooling device, and the cooling main pipe 53 is connected to the water circulation cooling device through a cooling pipe flange 531. The water circulation cooling device belongs to the prior art, and is used for supplying cold water to the cooling main pipe 53, the cooling branch pipe 54 and the condensing coil 541, and the embodiment is not limited thereto.

Specifically, the heat dissipation device 22 is disposed at a side portion of the drying chamber 2, the heat dissipation device 22 is further connected to an air inlet end of the burner 1 through a smoke tube 6, and the smoke tube 6 is further connected to the air supply fan 7. The air inlet of the air supply fan 7 is connected with the outside atmosphere and used for supplying fresh air to the combustion machine 1. The air outlet of the air supply fan 7 is also provided with a one-way valve 71, and the one-way valve 71 can prevent waste gas in the combustor 1 from being exhausted to the outside, so that environmental pollution is avoided. The smoke pipe 6 is also provided with a smoke outlet 61. The smoke exhaust port 61 is used for exhausting internal tail gas as required.

Specifically, the combustion chamber 11 is arranged at the bottom of the drying chamber 2, the lower end of the combustion chamber 11 is connected with the base 3, and the upper end of the drying chamber 2 is provided with the laminate 21. The layer plate 21 is used for placing medicines to be dried or placing medicine brackets to be dried (medicines with the drying are placed on the medicine brackets).

Since the outer contour of the combustion chamber 11 is not planar, in order to achieve an effective support of the combustion chamber 11, the base 3 is connected to the combustion chamber 11 by means of several base supports 31, which enable a multipoint support of the combustion chamber 11.

When the heat-dissipating device 22 is used for dissipating heat from the inside, the axial flow fan 23 blows the heat-dissipating device 22, the heat generated by the heat-dissipating device 22 is blown to the inside of the drying chamber 2, the medicine inside is dried, the dried hot air enters the axial flow fan 23 again through the circulating air duct 4 and the air inlet cover 24, the condenser 5 is arranged in the middle of the circulating air duct 4, the hot air in the circulating air duct 4 flows through the cooling branch duct 54 and the condensing coil 541, and after the hot air flows through the cooling branch duct 54 and the condensing coil 541, because cooling water with relatively low temperature flows through the cooling branch duct 54, the hot air contacts with the cooling branch duct 54 and the condensing coil 541, water vapor in the hot air is liquefied and attached to the surfaces of the cooling branch duct 54 and the condensing coil 541, then flows to the condensing water tray 55, and is finally discharged. The hot gas stream of the process is the hot gas stream used to dry the drug.

On the other hand, after the heat exchange of the hot air flow (which is not in contact with the chemical, and may be doped with some sulfides and nitrides, and is caused by impure natural gas or incomplete combustion) generated by combustion is performed by the heat dissipation device 22, most of the hot air flow passes through the smoke pipe 6 and enters the combustor 1 again to be heated, so that the heat waste is avoided, a small part of the hot air flow is discharged through the smoke outlet 61 in a proper amount, and the smoke outlet 61 can work continuously or discontinuously, and is used for discharging tail gas in a certain proportion, so as to cooperate with the air supply fan 7 to update the air flow quality of the loop in time.

The utility model discloses can convert vapor to liquid from the gaseous state through condenser 5, and then collect, discharge through condensate water dish 55, realize dehumidification, the drying of hot gas flow, promote the drying efficiency of medicine. Most of hot air flow generated by combustion enters the combustor 1 again for combustion, so that the waste of heat is avoided, and the energy consumption of equipment is reduced. The tail gas in the heat dissipation device 22 and the tail gas for drying the medicine are two independent loops, which are not interfered with each other, so that the tail gas is prevented from polluting the medicine. The liquid in the water circulation cooling device does not enter the inside of the drying chamber 2.

It should be noted that, the temperature difference between the inside and the outside of the condenser 5 and the smoke exhaust ratio of the smoke exhaust port 61 can be set by those skilled in the art according to specific situations when in use, and the present embodiment can further extend the automatic control technology by being matched with the modern advanced sensor technology, and the present embodiment is not described in detail.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. A hot air circulation box comprises a combustor (1) and a drying chamber (2), wherein the combustor (1) is provided with a combustion chamber (11) and an air inlet (12), the combustion chamber (11) is connected with a heat dissipation device (22), the side part of the heat dissipation device (22) is also provided with an axial flow fan (23) used for driving air flow to the heat dissipation device (22), the hot air circulation box is characterized in that the air inlet end of the axial flow fan (23) is connected to the top end of the drying chamber (2) through a circulation air pipe (4), the circulation air pipe (4) between the axial flow fan (23) and the drying chamber (2) is also provided with a condenser (5), the condenser (5) comprises two cooling main pipes (53) and a plurality of cooling branch pipes (54) connected between the cooling main pipes (53) and communicated with the cooling main pipes (53), the cooling main pipes (53) are connected with the cooling device, the cooling branch pipes (54) are connected with the circulation air pipe (4) through an air guide, and a condensed water tray (55) is further arranged at the lower end of the cooling branch pipe (54), and the condensed water tray (55) is connected with a drainage device.

2. A hot air circulation box according to claim 1, wherein the air scoops (52) are connected to the circulation duct (4) by duct flanges (51).

3. A hot air circulation box according to claim 1, wherein the outer surface of the cooling branch pipes (54) is further provided with a condensing coil (541).

4. A hot air circulation box according to claim 1, wherein said cooling means is a water circulation cooling means, and said main cooling pipe (53) is connected to the water circulation cooling means through a cooling pipe flange (531).

5. The hot air circulation box according to claim 1, wherein the heat dissipation device (22) is arranged at the side of the drying chamber (2), the heat dissipation device (22) is further connected with the air inlet end of the burner (1) through a smoke tube (6), the smoke tube (6) is further connected with the air supply fan (7), and the smoke tube (6) is further provided with an exhaust port (61).

6. A hot air circulation box according to claim 5, characterized in that the outlet of the air supply fan (7) is further provided with a one-way valve (71).

7. A hot air circulation box according to claim 1, characterized in that the combustion chamber (11) is arranged at the bottom of the drying chamber (2), the lower end of the combustion chamber (11) is connected with the base (3), and the upper end of the drying chamber (2) is provided with a laminate (21).

8. A hot air circulation box according to claim 7, characterized in that the base (3) is connected to the combustion chamber (11) by means of base brackets (31).

9. A hot air circulation box according to claim 3, wherein said condensation coil (541) is a copper tube.

10. A hot air circulation box according to claim 1, wherein an air inlet cover (24) is further provided between the circulation air duct (4) and the axial flow fan (23).