CN208720747U - Flour wheat bran heat pump drying device - Google Patents
Flour wheat bran heat pump drying device Download PDFInfo
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- CN208720747U CN208720747U CN201821046021.7U CN201821046021U CN208720747U CN 208720747 U CN208720747 U CN 208720747U CN 201821046021 U CN201821046021 U CN 201821046021U CN 208720747 U CN208720747 U CN 208720747U
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- heat pump
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- supply tube
- wheat bran
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Abstract
The utility model discloses a kind of flour wheat bran heat pump drying devices, including heat pump system and heating room；Heating room air outlet is connected with air supply tube；Using the flow direction of wind as downstream direction, air supply tube upstream end thereof is connected with feed pipe, and feed pipe connects up the original powder storage tank of the original powder for storing flour wheat bran, and feed pipe is equipped with baiting valve；The air supply tube of feed pipe downstream direction is connected in series with several speedup pipeline sections and several deceleration pipeline sections, and speedup pipeline section and deceleration pipeline section are arranged alternately；The air supply tube of speed change drying area downstream direction is connected with cyclone separator, and cyclone separator bottom end is connected to xeraphium storage tank, and the top of cyclone separator is connected with the air inlet of a blower；Powder air-flow is taken when by speed change drying area, speed difference is maintained between air velocity and original powder particle speed, accelerates the heat transfer rate between original powder particle and hot wind, makes the moisture rapid evaporation in flour, improves drying efficiency.Has the characteristics that high-efficient energy-saving environment friendly using heat pump.
Description
Technical field
The utility model relates to heat pump drying equipment field more particularly to powdered, little particle class product drying equipment skills
Art field, especially suitable for material drying devices such as flour, wheat brans.
Background technique
When moisture content is excessively high in flour, phenomena such as being easy to appear mildew, agglomerate, the shelf-life is caused to shorten, product quality
It is irregular, it is not easy to the long-distance transportation and sale of finished product.To solve this problem, each flour producer all seeks to save constantly
The flour drying device of energy environmental protection.
By various experiments, flour drying cannot take the mode of solarization, have producer to use outside flour delivery pipe at present
The mode of heat-conducting medium is installed, heat-conducting medium is provided with heater element.The technology has the drawback that: heat is transmitted by medium
It is transmitted in flour again to after outer wall, heating efficiency is low, and drying efficiency is low；And drying is not filled when heat-conducting medium temperature is low
Point, flour is easy to change rotten when heat-conducting medium temperature is high, and flour drying quality is poor, and drying quality is difficult to control；Equipment simultaneously
It is relative complex, occupied space is big；Usual heater element is electric heating, and drying cost is high, increases the burden of user, is unfavorable for the whole nation
It is widely applied.
Utility model content
The purpose of this utility model is to provide a kind of flour wheat bran heat pump drying devices, and original powder drying rate is fast, drying
Efficiency is higher.
To achieve the above object, the flour wheat bran heat pump drying device of the utility model includes heat pump system and heating room；
It heats room air inlet and is equipped with air filter, heating room air outlet is connected with air supply tube；Using the flow direction of wind as downstream direction, air-supply
Pipe upstream end thereof is connected with feed pipe, and feed pipe connects up the original powder storage tank of the original powder for storing flour wheat bran, into
Expects pipe is equipped with baiting valve；
The air supply tube of feed pipe downstream direction is connected in series with several speedup pipeline sections and several deceleration pipeline sections, speedup pipeline section
Caliber is less than deceleration pipeline section, and speedup pipeline section and deceleration pipeline section are arranged alternately；Each speedup pipeline section and each deceleration pipeline section form speed change
Drying area；The air supply tube of speed change drying area downstream direction is connected with cyclone separator, and cyclone separator bottom end passes through discharging
Pipe is connected with xeraphium storage tank, and the top of cyclone separator is connected by connection air hose with the air inlet of a blower, the wind
The air outlet of machine is connected with deduster, and deduster is connected with air-exhausting duct；
Heat pump system includes the compressor being connected by circulation by refrigerant line, condenser, expansion valve and evaporator, compression
Machine, expansion valve and evaporator form heat pump main frame, and heat pump main frame is located at heating outdoor, and it is indoor that condenser is located at heating.
The heating outer wall is equipped with insulating layer.
The temperature sensor for measuring gas flow temperature is equipped at the heating room air outlet；Temperature sensor is connected with electricity
Device is controlled, electric control gear is connected with display screen, and electric control gear is connected with the compressor.
The caliber of the deceleration pipeline section is 1.5-3 times of the caliber of speedup pipeline section.
The utility model has the advantage that
In the utility model, powder air-flow is taken when by speed change drying area, air velocity is different with original powder particle speed
Step ground varies widely, so that maintaining speed difference between air velocity and original powder particle speed, accelerates original powder particle
Heat transfer rate between hot wind makes the moisture rapid evaporation in flour, improves drying efficiency.
The utility model proposes a kind of flour, wheat bran heat pump drying device, carry out in flour transmission process to flour
It is dry, and use energy-saving and environment-friendly heat pump as drying source, drying temperature is accurately controlled, drying quality is good, and dry
At low cost, device is simple and reliable, is convenient for large-scale promotion of whole nation application.
The heat that the setting of insulating layer can be such that heat pump generates is concentrated for heating air-flow.The caliber of deceleration pipeline section is speedup
1.5-3 times of the caliber of pipeline section.In this way, can not only give full play to speed change bring strengthens the effect of heat exchange, but also avoid speed
Change it is excessive caused by energy loss.
Staff monitors gas flow temperature by display screen with can be convenient, when gas flow temperature is lower than the temperature that technique requires
When, heat pump system quantity of heat production can be improved by opening the modes such as compressor, height-regulating compressor operating frequency.Work as gas flow temperature
When the temperature required higher than technique, can by close compressor, turn down the modes such as compressor operating frequency and reduce heat pump system
System quantity of heat production.In short, can be by the size of the modes adjusting heat pump quantity of heat production such as start-stop, frequency conversion, transfiguration, to guarantee drying temperature
Degree is the temperature that technique requires, and guarantees flour dry mass.
Powder air-flow is taken when by speed change drying area, larger change asynchronously occurs for air velocity and original powder particle speed
Change, so that maintaining speed difference between air velocity and original powder particle speed, accelerates changing between original powder particle and hot wind
Thermal velocity makes the moisture rapid evaporation in flour, and flour obtains evenly drying, improves drying efficiency.
Heat pump is reached as heat source, heat pump by the way that the heat in outside atmosphere is transferred to heating interior in the utility model
To the purpose of heat supply.Refrigerant (refrigerant) in heat pump system under the driving of compressor followed by condenser, expansion valve and
Evaporator, wherein refrigerant evaporates and the heat in absorption heat-exchange medium (empty gas and water, soil etc.) in evaporator with heat pump, enters
Liquid is condensed under high pressure effect after condenser and releases heat, and the heat transfer released flows through condensation to heating interior
The air of device, increases air themperature.In the heat pump course of work, the heat in surrounding air, efficiency has been absorbed and utilized in heat pump
Can achieve 3-6 than COP, that is, consume 1 part of electric energy can export 3-6 parts of heats, work at the same time in do not generate any noxious emission,
Therefore, heat pump drying equipment has the characteristics that high-efficient energy-saving environment friendly.
The condenser of indoor arrangement is heated in this patent for heating air, according to heat demand difference can match one or
More heat pump systems.Controlled by modes such as start-stop, frequency conversion, transfigurations heat pump heat investment how much, thus control heating room
Leaving air temp, make the constant air outlet temperature for heating room, even if still may be used when inlet air temperature fluctuation or the dry change of production of flour
To guarantee that leaving air temp remains constant, effectively prevent the non-uniform phenomenon of moisture after flour drying.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of heat pump system；
Fig. 3 is the electric control principle schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1 to Figure 3, the flour wheat bran heat pump drying device of the utility model includes heat pump system and heating room 1；
It heats 1 air inlet of room and is equipped with air filter 2, the air outlet 3 of heating room 1 is connected with air supply tube 4；Using the flow direction of wind as downstream side
To 4 upstream end thereof of air supply tube is connected with feed pipe 5, and feed pipe 5 connects up the original powder of the original powder for storing flour wheat bran
Storage tank 6, feed pipe 5 are equipped with baiting valve 7；
The air supply tube 4 of 5 downstream direction of feed pipe is connected in series with several speedup pipeline sections 8 and several deceleration pipeline sections 9, velocity hooster
The caliber of section 8 is less than deceleration pipeline section 9, and speedup pipeline section 8 and deceleration pipeline section 9 are arranged alternately；Each speedup pipeline section 8 and each deceleration pipeline section
9 composition speed change drying areas；The air supply tube 4 of speed change drying area downstream direction is connected with cyclone separator 10, cyclone separator
10 bottom ends are connected with xeraphium storage tank 12 by discharge nozzle 11, and the top of cyclone separator 10 passes through connection air hose 13 and a wind
The air inlet of machine 14 is connected, and the air outlet of the blower 14 is connected with deduster 15, and deduster 15 is connected with air-exhausting duct 16；
Heat pump system includes the compressor 18 being connected by circulation by refrigerant line 17, condenser 19, expansion valve 20 and steams
Device 21 is sent out, compressor 18, expansion valve 20 and evaporator 21 form heat pump main frame, and heat pump main frame is located at outside heating room 1, condenser
19 are located in heating room 1.
The heating outer wall is equipped with insulating layer.Insulating layer is routine techniques, not shown.
The temperature sensor 22 for measuring gas flow temperature is equipped at heating 1 air outlet of room；Temperature sensor 22 connects
It is connected to electric control gear 23, electric control gear 23 is connected with display screen 24, and electric control gear 23 is connected with the compressor 18.
The caliber of the deceleration pipeline section 9 is 1.5-3 times of the caliber of speedup pipeline section 8.In this way, can both give full play to change
Fast bring strengthens the effect of heat exchange, and energy loss caused by avoiding velocity variations excessive.
The electric control gear 23 is single-chip microcontroller or PLC, it is preferred to use 51 or 52 single-chip microcontrollers.
In use, the compressor 18 of starting blower 14 and heat pump system, refrigerant is during circulating, in condenser
Heat release is condensed in 19.Blower 14 generates negative pressure in air supply tube 4 and heating room 1, outside air is sucked heating room 1, air exists
By being filtered when air filter 2, clean air when condenser 19 by obtaining being heated as hot wind.Open blanking
Valve 7, the original powder in original powder storage tank 6 enter air supply tube 4 by feed pipe 5.The open degree for adjusting baiting valve 7 can control blanking
Speed.
After original powder enters air supply tube 4, the flow further downstream under the drive of wind-force.The air-flow of original powder is carried by speed change
Speed constantly changes when drying area.Specifically, powder air-flow is taken in deceleration pipeline section 9 biggish by caliber, due to
Caliber is larger, and air velocity reduces, but its speed before the obstruction by gas of the original powder particle in air-flow will not reduce, this is just
So that the speed of original powder particle is faster than air velocity, to make to keep relative motion between original powder particle and air-flow, accelerate original powder
Heat transfer rate between particle and hot wind makes the moisture rapid evaporation in flour.
Powder air-flow is taken in speedup pipeline section 8 lesser by caliber, since caliber reduces, air velocity is increased, but air-flow
In original powder particle by air-flow drive before before its speed will not increase, this speed for allowing for original powder particle is slower than gas velocity
Degree accelerates the heat transfer rate between original powder particle and hot wind, makes face to make to keep relative motion between original powder particle and air-flow
Moisture rapid evaporation in powder.
To sum up, powder air-flow is taken when by speed change drying area, and air velocity and original powder particle speed asynchronously occur
Large change so that maintain speed difference between air velocity and original powder particle speed, accelerate original powder particle and hot wind it
Between heat transfer rate, make the moisture rapid evaporation in flour, flour obtains evenly drying, improves drying efficiency.
Enter cyclone separator 10 with air-flow after original powder drying, in cyclone separator 10, dry flour is through discharge nozzle
11 enter xeraphium storage tank 12, and air-flow then enters deduster 15 through connection air hose 13 and blower 14, and the air-flow after dedusting is discharged into
Atmosphere avoids dust from largely entering atmosphere and forms pollution.
Above embodiments are only to illustrate rather than limit the technical solution of the utility model, although referring to above-described embodiment pair
The utility model is described in detail, those skilled in the art should understand that: still can to the utility model into
Row modification or equivalent replacement should all without departing from any modification or partial replacement of the spirit and scope of the utility model
Cover in the scope of the claims of the utility model.
Claims (3)
1. flour wheat bran heat pump drying device, it is characterised in that: including heat pump system and heating room；It heats room air inlet and is equipped with sky
Air filter, heating room air outlet are connected with air supply tube；Using the flow direction of wind as downstream direction, air supply tube upstream end thereof be connected with into
Expects pipe, feed pipe connect up the original powder storage tank of the original powder for storing flour wheat bran, and feed pipe is equipped with baiting valve；
The air supply tube of feed pipe downstream direction is connected in series with several speedup pipeline sections and several deceleration pipeline sections, the caliber of speedup pipeline section
Less than deceleration pipeline section, and speedup pipeline section and deceleration pipeline section are arranged alternately；Each speedup pipeline section and the composition speed change drying of each deceleration pipeline section
Region；The air supply tube of speed change drying area downstream direction is connected with cyclone separator, and cyclone separator bottom end is connected by discharge nozzle
It is connected to xeraphium storage tank, the top of cyclone separator is connected by connection air hose with the air inlet of a blower, the blower
Air outlet is connected with deduster, and deduster is connected with air-exhausting duct；
Heat pump system includes the compressor being connected by circulation by refrigerant line, condenser, expansion valve and evaporator, compressor,
Expansion valve and evaporator form heat pump main frame, and heat pump main frame is located at heating outdoor, and it is indoor that condenser is located at heating.
2. flour wheat bran heat pump drying device according to claim 1, it is characterised in that: set at the air outlet of the heating room
There is the temperature sensor for measuring gas flow temperature；Temperature sensor is connected with electric control gear, and electric control gear is connected with display screen,
Electric control gear is connected with the compressor.
3. flour wheat bran heat pump drying device according to claim 1 or 2, it is characterised in that: the pipe of the deceleration pipeline section
Diameter is 1.5-3 times of the caliber of speedup pipeline section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821046021.7U CN208720747U (en) | 2018-07-04 | 2018-07-04 | Flour wheat bran heat pump drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821046021.7U CN208720747U (en) | 2018-07-04 | 2018-07-04 | Flour wheat bran heat pump drying device |
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| Publication Number | Publication Date |
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| CN208720747U true CN208720747U (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821046021.7U Active CN208720747U (en) | 2018-07-04 | 2018-07-04 | Flour wheat bran heat pump drying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870945A (en) * | 2018-07-04 | 2018-11-23 | 河南佰衡节能科技股份有限公司 | Flour wheat bran heat pump drying device |
-
2018
- 2018-07-04 CN CN201821046021.7U patent/CN208720747U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870945A (en) * | 2018-07-04 | 2018-11-23 | 河南佰衡节能科技股份有限公司 | Flour wheat bran heat pump drying device |
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