CN210602537U

CN210602537U - Directly-heated type dehumidification drying system

Info

Publication number: CN210602537U
Application number: CN201921625961.6U
Authority: CN
Inventors: 李少庆; 李书明; 张磊
Original assignee: Henan Zhongrui Refrigeration Technology Co ltd
Current assignee: Henan Zhongrui Refrigeration Technology Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-22
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a direct-heating type dehumidifying and drying system, which comprises a direct-heating type dryer and a drying bin, wherein the direct-heating type dryer comprises a shell and a heat pump unit arranged in the shell, an air inlet is arranged on the end face of one end of the shell, a built-in fan and an air supply barrel are arranged at the other end of the shell, and one end of the air outlet of the air supply barrel is communicated with the drying bin; the drying bin comprises a bin body with an opening at the top, and a hot air inlet connected with an air supply barrel of the directly-heated dryer is formed in the side wall of one end of the bin body. The utility model discloses a directly-heated type drying-machine accesss to material stoving feed bin after heating the ambient air, and its rate of heating is fast, drying efficiency is high, and the open structure in top is adopted to the stoving feed bin, and the humid air that the stoving produced is direct to be discharged by the open-top of stoving feed bin for the humid air does not produce the inner loop, avoids the corrosivity composition damage drying equipment who contains in the humid air that the stoving produced, is particularly useful for the stoving of products such as prickly ash, aniseed.

Description

Directly-heated type dehumidification drying system

Technical Field

The utility model relates to a drying equipment technical field, concretely relates to directly-heated type dehumidification drying system.

Background

With the continuous expansion of the industrial production scale, the efficiency of the traditional drying mode and the high-cost drying method can not meet the requirements of many fields on material drying, the heat pump drying solves the problems of low efficiency and high cost of the traditional drying technology to a great extent, and the heat pump drying is applied in many fields at present. For the drying of products such as pepper, aniseed, generally require accurate control temperature and in time to dehumidify, because contain the corrosivity chemical composition in the moisture that its stoving in-process produced, if adopt the sealing commonly used, semi-closed type drying equipment, the humid air that the stoving produced can circulate in equipment, humid air dwell time is long in drying equipment, discharge is slower, corrosivity chemical composition in the humid air will produce comparatively serious damage to drying equipment, consequently need adopt the drying-machine that the intensification is fast to dry and in time discharge moisture, sometimes when the drying-machine is introducing outside air and heats the stoving, outside air humidity is great, can lead to the drying efficiency to the material step down, the stoving time is prolonged.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a directly-heated type dehumidification drying system, its heating is fast, drying efficiency is high and can dehumidify to drying air in advance.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the direct-heating type dehumidifying and drying system comprises a direct-heating type dryer and a drying bin, wherein the direct-heating type dryer comprises a shell and a heat pump unit arranged in the shell, an air inlet is formed in the end face of one end of the shell, a built-in fan and an air supply cylinder connected with the outer side of the built-in fan are arranged at the other end of the shell, and one end of the air outlet of the air supply cylinder is communicated with the drying bin;

the heat pump unit comprises a condenser arranged in the shell and adjacent to the built-in fan, an evaporator arranged on the outer side of the condenser, a compressor, a four-way reversing valve, a liquid storage device, a drying filter, an expansion valve and a gas-liquid separator, wherein the compressor, the four-way reversing valve, the liquid storage device, the drying filter, the expansion valve and the gas-liquid separator are arranged on the outer side of the evaporator; all parts in the heat pump unit form a heat pump circulating system through pipelines;

the drying bin comprises a bin body with an opening at the top, and the opening at the top of the bin body is used as a filling opening and an air outlet; and a hot air inlet connected with an air supply barrel of the direct-heating dryer is formed in the side wall of one end of the bin body.

In the technical scheme, under the drive of the built-in fan, the external air enters the dryer through the air inlet at the end part of the shell, heat exchange is carried out through the evaporator firstly, heat in the external air is absorbed by the evaporator, the temperature is reduced, moisture in the external air condenses and flows out to play a role in dehumidifying the external air, the dehumidified air is heated through the condenser, the heated air is sent into the drying bin through the built-in fan and the air supply cylinder to dry materials in the drying bin, the top of the drying bin is open, the top opening of the drying bin is used as a filling port for placing the materials and is used as an air outlet, so that the wet air generated in the process of drying the materials is directly discharged, the retention time of the wet air in the drying equipment is prevented from being too long, the drying equipment is particularly suitable for products containing corrosive components in some drying moisture, and the drying efficiency can be improved, The service life of the drying equipment is prolonged.

Preferably, a material holding grate is arranged in the bin body, a discharge hole is formed in the position, located at the upper part of the material holding grate, on the side wall of one side of the bin body, a discharge gate is arranged at the discharge hole, and the discharge gate is hinged to the side wall of the bin body.

The material to be dried is put into the drying bin through the opening at the top of the bin body, and is placed on the material bearing grate, and the material bearing grate is used for bearing the material, so that the upper side and the lower side of the material can be in contact with hot air, the drying efficiency is higher, and the drying is more uniform.

Preferably, the material holding grate is arranged in the middle of the bin body and divides the internal space of the bin body into an upper layer and a lower layer.

Preferably, the discharge gate is opened from bottom to top, and the upper edge is hinged with the side wall of the bin body through a locatable hinge. After the drying is finished, the discharging gate is opened, and the material can be taken out through the discharging port.

Preferably, the compressor, the four-way reversing valve, the condenser, the liquid storage device, the drying filter, the expansion valve, the evaporator and the gas-liquid separator are sequentially communicated through a pipeline, and an outlet of the gas-liquid separator is communicated to an air suction port of the compressor through the four-way reversing valve to form the heat pump circulating system.

Preferably, a water collecting tank is arranged below the evaporator, and is connected with a drain pipe which extends to the outside of the shell. The process that outside air and evaporimeter carry out the heat transfer can produce the comdenstion water, and the comdenstion water collects in the lower part water catch bowl, discharges through the drain pipe.

Preferably, an electric control cabinet is further arranged on the side wall of one side of the shell.

The beneficial effects of the utility model reside in that:

1. the utility model discloses directly-heated type dehumidification drying system adopts the directly-heated type drying-machine, through the work of heat pump set and built-in fan, air supply section of thick bamboo, accesss to material stoving feed bin after heating with the ambient air, and its rate of heating is fast, drying efficiency is high, compares with traditional boiler stoving, and its clean environmental protection, convenient operation's advantage is especially outstanding. Outside air carries out the heat transfer with the evaporimeter earlier before heating, for heat pump set replenishment heat on the one hand, and moisture in the outside air can be got rid of on the other hand for moisture content reduces in the air that gets into in the stoving feed bin after the heating, is favorable to improving drying efficiency, shortens the stoving time.

2. The drying bin adopts a structure with an open top, and wet air generated by drying is directly discharged from the opening at the top of the drying bin, so that the wet air does not generate internal circulation, corrosive components contained in the wet air generated by drying are prevented from damaging drying equipment, and the drying bin is particularly suitable for drying products such as pepper, aniseed and the like; the material holding grate is adopted for layering in the drying bin, so that the area of the materials contacting hot air is larger, the materials are dried more uniformly, the drying efficiency is higher, and the drying effect is better.

Drawings

FIG. 1 is a schematic structural view of the directly-heated dehumidifying and drying system of the present invention;

FIG. 2 is a schematic structural view of the direct-heating dryer of FIG. 1;

fig. 3 is a schematic structural diagram of the drying bin in fig. 1;

reference numbers in the figures: the device comprises a shell 1, an air inlet 2, a built-in fan 3, an air supply cylinder 4, a condenser 5, an evaporator 6, a drying bin 7, a filling opening/air outlet 8, a hot air inlet 9, a material bearing grate 10, a material outlet 11, a material outlet 12, a discharge gate 13 and an electric control cabinet 14.

Detailed Description

The following examples are provided only for illustrating the embodiments of the present invention in detail and are not intended to limit the scope of the present invention in any way.

Example 1: a directly-heated dehumidifying and drying system is shown in figures 1-3 and comprises a directly-heated dryer and a drying bin 7, wherein the directly-heated dryer comprises a shell 1 and a heat pump unit arranged in the shell 1, an air inlet 2 is arranged on one end face of the shell 1, a built-in fan 3 and an air supply barrel 4 connected with the outer side of the built-in fan 3 are arranged at the other end of the shell, and one end of the air outlet of the air supply barrel 4 is communicated with the drying bin 7.

The heat pump unit comprises a condenser 5 arranged in the shell 1 and adjacent to the built-in fan 3, an evaporator 6 arranged outside the condenser 5, a compressor, a four-way reversing valve, a liquid storage device, a drying filter, an expansion valve and a gas-liquid separator, wherein the compressor, the four-way reversing valve, the liquid storage device, the drying filter, the expansion valve and the gas-liquid separator are arranged outside the evaporator 6; all parts in the heat pump unit form a heat pump circulating system through pipelines; the compressor, the four-way reversing valve, the condenser, the liquid storage device, the drying filter, the expansion valve, the evaporator and the gas-liquid separator are sequentially communicated through pipelines, and an outlet of the gas-liquid separator is communicated to an air suction port of the compressor through the four-way reversing valve to form a heat pump circulating system.

A water collecting tank is arranged below the evaporator 6, the water collecting tank is connected with a water discharging pipe 13, and the water discharging pipe 13 extends to the outside of the shell; an electric control cabinet 14 is also arranged on the side wall of one side of the shell 1.

The drying bin 7 comprises a bin body with an opening at the top; the opening at the top of the bin body is used as a filling opening and an air outlet (the number is 8); a hot air inlet 9 connected with the air supply barrel 4 of the direct-heating dryer is arranged on the side wall of one end of the bin body. The bin body is internally provided with a material bearing grate 10, a discharge hole 11 is arranged on the side wall of one side of the bin body and positioned at the upper part of the material bearing grate 10, a discharge gate 12 is arranged at the discharge hole 11, and the discharge gate 12 is opened from bottom to top and is hinged with the side wall of the bin body through a locatable hinge. The material holding grate 10 is arranged in the middle of the bin body and divides the internal space of the bin body into an upper layer and a lower layer.

The apparatus elements referred to in the above embodiments are conventional apparatus elements unless otherwise specified.

The utility model discloses directly-heated type dehumidification drying system's concrete working method does:

the material that will treat to dry is put into the bin through the opening part at stoving feed bin top and is held on the material grate, holds the effect that the material grate played the bearing material, still plays the effect that increases material heated area simultaneously, holds the equal hot-air of contact of both sides about the material grate for drying efficiency is higher, and the stoving effect is more even, is particularly useful for the stoving of small particle materials such as prickly ash, aniseed. Starting the direct-heating dryer, under the drive of the built-in fan, external air enters the dryer through the air inlet at the end part of the shell, firstly, heat exchange is carried out with the evaporator, heat in the air is absorbed by the evaporator, the temperature is reduced, moisture in the air is condensed and collected and is discharged through the drain pipe, and the effect of dehumidifying the air is achieved so as to reduce the moisture in the air; the air after the dehumidification heats through the condenser again, the air after the heating is sent into in the stoving feed bin through built-in fan and air supply section of thick bamboo, dry the material in the stoving feed bin, the humid air that the stoving in-process produced directly discharges through the opening at top, do not stop and circulate in drying equipment, the product (like prickly ash, aniseed etc.) that contains the corrosivity composition is especially suitable for in the humid air that produces to the stoving, can avoid humid air at drying equipment inner loop or dwell time overlength, cause the harm for drying equipment.

The embodiments of the present invention have been described in detail with reference to the drawings and examples, but the present invention is not limited to the above embodiments, and can be modified or changed within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A directly-heated dehumidifying and drying system is characterized by comprising a directly-heated dryer and a drying bin, wherein the directly-heated dryer comprises a shell and a heat pump unit arranged in the shell, an air inlet is formed in the end face of one end of the shell, a built-in fan and an air supply cylinder connected with the outer side of the built-in fan are arranged at the other end of the shell, and one end of the air outlet of the air supply cylinder is communicated with the drying bin; the heat pump unit comprises a condenser arranged in the shell and adjacent to the built-in fan, an evaporator arranged on the outer side of the condenser, a compressor, a four-way reversing valve, a liquid storage device, a drying filter, an expansion valve and a gas-liquid separator, wherein the compressor, the four-way reversing valve, the liquid storage device, the drying filter, the expansion valve and the gas-liquid separator are arranged on the outer side of the evaporator; all parts in the heat pump unit form a heat pump circulating system through pipelines;

2. The directly-heated dehumidifying and drying system as claimed in claim 1, wherein a material holding grate is provided in the bin body, a material outlet is provided at a position on the upper portion of the material holding grate on the side wall of one side of the bin body, a material outlet gate is provided at the material outlet, and the material outlet gate is hinged to the side wall of the bin body.

3. The directly-heated dehumidifying and drying system as claimed in claim 2, wherein the material-holding grate is disposed in the middle of the bin body to separate the internal space of the bin body into an upper layer and a lower layer.

4. The directly-heated dehumidifying and drying system as claimed in claim 2, wherein the discharge gate is opened from bottom to top, and an upper edge of the discharge gate is hinged to the side wall of the bin body through a locatable hinge.

5. The direct-heating dehumidifying and drying system of claim 1, wherein the compressor, the four-way reversing valve, the condenser, the liquid reservoir, the drying filter, the expansion valve, the evaporator and the gas-liquid separator are sequentially communicated through a pipeline, and an outlet of the gas-liquid separator is communicated to an air suction port of the compressor through the four-way reversing valve to form the heat pump circulating system.

6. The direct-heating dehumidifying and drying system of claim 1, wherein a water collecting tank is provided below the evaporator, and a drain pipe is connected to the water collecting tank and extends to an outside of the casing.

7. The direct-heating dehumidifying and drying system of claim 1, wherein an electric control cabinet is further disposed on a side wall of one side of the casing.