CN201919594U - Multistage direct-flow tempering heat pump drying device - Google Patents

Multistage direct-flow tempering heat pump drying device Download PDF

Info

Publication number
CN201919594U
CN201919594U CN201120010734XU CN201120010734U CN201919594U CN 201919594 U CN201919594 U CN 201919594U CN 201120010734X U CN201120010734X U CN 201120010734XU CN 201120010734 U CN201120010734 U CN 201120010734U CN 201919594 U CN201919594 U CN 201919594U
Authority
CN
China
Prior art keywords
drying
heat pump
air
multistage
grain
Prior art date
Application number
CN201120010734XU
Other languages
Chinese (zh)
Inventor
朱恩龙
Original Assignee
天津科技大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 天津科技大学 filed Critical 天津科技大学
Priority to CN201120010734XU priority Critical patent/CN201919594U/en
Application granted granted Critical
Publication of CN201919594U publication Critical patent/CN201919594U/en

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85Food storage or conservation, e.g. cooling or drying

Abstract

A multistage direct-flow tempering heat pump drying device comprises a heat pump system and a multistage direct-flow tempering drying device which are connected through a hot air pipeline, a circulating air pipeline and a cold air pipeline. The heat pump system mainly comprises a compressor, a condenser, a liquid storage device, an electronic expansion valve, an evaporator, a heat regenerator, a reversing valve, a liquid-vapor separator, and a variable frequency fan. The multistage direct-flow tempering drying device comprises a grain storing section, a multistage air inlet section, a multistage air outlet section, a cooling section, a grain discharging section and a lifter. By means of the heat regenerator of the heat pump system, ineffective cold consumption can be effectively reduced and dehumidification performance can be improved. The multistage direct-flow tempering drying device is even in drying, large in once watering range, low in energy consumption and fine in quality of dried grains. The multistage direct-flow tempering heat pump drying device has functions of dehumidifying, temperature varying, air speed varying and drying speed adjusting, drying temperature and air speed are easy to control by means of a touch screen controlling system, and the multistage direct-flow tempering heat pump drying device is suitable for drying of grains and particle materials, requirements of various drying processes can be met, and programmed drying can be realized.

Description

A kind of multistage following current tempering heat pump drying equipment

Technical field

The present invention relates to modern heat pump drying technology and automation field, particularly a kind of multistage following current tempering heat pump drying equipment.

Background technology

It is typical multidisciplinary interleaving techniques field that modern dry technology belongs to, and it is three raisings that the problem that grain and food drying need solve is concluded, and the problem of three reductions promptly improves drying quality, boosts productivity, improves intelligent degree; Reduce production costs, cut down the consumption of energy, reduce pollutant emission.Data shows that the energy consumption of agricultural product drying accounts for 10~15% of agriculture total energy consumption, and whether advanced energy consumption be to estimate dry critical index, and the energy consumption of coal-fired thermal source drying machine is generally at 6270~8360KJ/kgH 2O, the energy consumption of fuel oil thermal source drying machine is 3350~5850KJ/kgH 2The special cereal downstream dryer of O U.S. Blang energy consumption is 3480KJ/kgH 2O, and the heat pump energy consumption is 2930~4180KJ/kgH 2O adopts the heat pump of regenerator to save 20-30% by loss-rate ordinary hot pump.The grain drying thermal source is many to act as a fuel with the rice husk in fuel oil, coal, the crops etc., as drying source, can aggravate the energy starved process, and fuel can produce greenhouse gases CO with non-renewable energy resources fuel oil and coal 2, pollutant SO 2, NO xWith dust etc.

The waste gas of traditional drying directly discharges, and sensible heat and latent heat are not recycled, and the energy interest rate is low, has only about 35%.The removal moisture drying of backheat circulating heat pump combined with following current tempering drying process can give full play to the technical advantage of backheat circulating heat pump and downstream dryer, dry run can realize that the low-grade energy of dry run reclaims, reduce the cold process of no consumption, obvious energy-saving effect is arranged.Can solve the low common problem of waste heat recovery rate in the drying operation; Utilize heat pump realize in low temperature drying, and effectively avoid the fire damage of heat sensitive material by following current tempering back tender artistic skill, fully improve drying quality.Heat pump drying is imitated the heat that reclaims in the humid air except that having, and unit does not produce CO 2, SO 2, NO xHas double benefit energy-conservation and that reduce discharging Deng pollutant, for the restrictive target that realizes national energy-saving and emission-reduction has crucial meaning.

Summary of the invention

The present invention proposes a kind of multistage following current tempering heat pump drying equipment, and it is the following current tempering heat pump drying equipment that a kind of following current tempering drying process and heat pump drying combine, intelligent degree height, drying quality height, productivity ratio height; Production cost is low, energy consumption is low, non-pollutant discharge.

Particular content of the present invention:

A kind of multistage following current tempering heat pump drying equipment is characterized in that: it is the following current tempering heat pump dehumidification equipment that following current tempering drying process and heat pump removal moisture drying combine, and it comprises heat pump, following current tempering system; There is a vertical drying tower in its described following current tempering system, and drying tower is from top to bottom successively:

Grain storage section (1), one-level air inlet section (2), one-level exhaust section (3), secondary air inlet section (4), secondary exhaust section (5), three grades of air inlet sections (6), two exhaust section (7), cooling section (8), grain discharging section (9); The grain import of the top of vertical drying tower be contained in elevator (11) UNICOM of side, at the outlet at bottom of vertical drying tower row's grain auger (10) is housed; Side at the one-level air inlet section of drying tower, secondary air inlet section, three grades of air inlet section positions is equipped with hot air duct (14) respectively, and the outer end of hot air duct (14) connects heat pump (13); Side at the one-level exhaust section of drying tower, secondary exhaust section, two exhaust sections position is equipped with circulating air pipeline (12) respectively; Cold-air duct (15) is equipped with in side at the cooling section (8) of drying tower; Cold-air duct (15) outer end connects heat pump (13).

Its described heat pump is by compressor, main condenser, and evaporimeter, regenerator, auxiliary condenser, frequency conversion fan, electric expansion valve, four-way change-over valve, fluid reservoir is formed, and the outlet of hot blast is connected with the import of hot air duct (14) after main condenser; The air outlet slit of circulating air after the evaporimeter dehumidifying is after evaporimeter, with being connected of main condenser and cold-air duct (15).Main condenser, evaporimeter, auxiliary condenser and regenerator are located in the heat pump (13).

This multistage following current tempering heat pump drying equipment comprises heat pump, following current tempering system.Heat by the working medium absorbing environmental air in the evaporimeter of heat pump, deliver to main condenser by compressor, after drying medium air and main condenser carry out heat exchange, atmosphere temperature rising becomes the dry air that the high temperature low humidity has very strong year wet ability, the air inlet section and the grain that enter following current tempering system through hot air duct carry out heat exchange, moisture in the grain is taken away by air, deliver to the dehumidifying of being absorbed heat of evaporimeter that the circulating air pipeline reenters heat pump through exhaust section, air is finished a circulation; Working medium in the main condenser becomes the state of low-temp low-pressure after by the electric expansion valve throttling, enters evaporimeter; When air themperature surpasses design temperature, bring unnecessary heat into auxiliary condenser by reversal valve working medium, loose in environment through blower fan, when air themperature is lower than setting value, working medium comes back to main condenser by reversal valve, owing between main condenser and evaporimeter, regenerator is arranged, effectively reduce the cold process of invalid consumption of heat pump dehumidification process, effectively reduce the specific heat consumption of dry run, through after a plurality of circulations, grain moisture content is when requiring moisture, the portion of air of coming out from evaporimeter enters cooling section, grain is cooled off, and grain is dried to and requires moisture, and the grain discharging section of following current tempering system is got rid of grain outside the machine, otherwise through elevator lifting carrying out cyclic drying, grain is not cooled neither being heated through time between a plurality of air inlet sections and the exhaust section in top-down motion process yet, finishes multistage following current tempering drying process.

A kind of multistage following current tempering heat pump drying equipment operation principle, the hot-air that produces by heat pump enters following current tempering drying system, finish the heat exchange of drying medium and grain through multilevel drying section, exhaust section and cooling section, grain reaches requirement moisture and through grain discharging section grain is got rid of outside the machine, otherwise through repeatedly reaching requirement moisture after the circulation, dried waste gas reaches below the dew-point temperature after evaporimeter absorbs heat and is dehumidified by elevator.

Characteristics of the present invention and advantage

The heat pump of this multistage following current tempering heat pump drying equipment adopts regenerator effectively to reduce the cold process of invalid consumption, has improved wet-out property; Advantages such as multistage following current tempering system is dry evenly, precipitation range is big, energy consumption is low, baking back grain quality is good.This equipment possesses functions such as dehumidifying, alternating temperature, change wind speed and rate of drying be adjustable, adopt touch screen control system, baking temperature, wind speed are easy to control, are applicable to the requirement of the drying of various grains and granular material for the different dry drying process, can realize the sequencing drying.

This multistage following current tempering heat pump drying equipment is the following current tempering heat pump drying equipment that adopts a kind of following current tempering drying process and heat pump drying to combine, and this equipment can improve the grain drying quality, boosts productivity, this device intelligenceization degree height; This equipment of employing can reduce production costs, cuts down the consumption of energy, non-pollutant discharge.

Description of drawings

Fig. 1 is multistage following current tempering heat pump drying equipment drawing

1 grain storage section, 2 one-level air inlet sections, 3 one-level exhaust sections, 4 secondary air inlet sections, 5 secondary exhaust sections, 6 three grades of air inlet sections, 7 pairs of exhaust sections, 8 cooling sections, 9 grain discharging sections, 10 are arranged grain augers, 11 elevators, 12 circulating air pipelines, 13 heat pumps, 14 hot air ducts, 15 cold-air ducts

The specific embodiment

A kind of multistage following current tempering heat pump drying equipment as shown in the figure, it is the following current tempering heat pump drying equipment that following current tempering drying process and heat pump combine, it comprises heat pump, following current tempering system;

There is a vertical drying tower in its following current tempering system, and drying tower is from top to bottom successively:

Grain storage section (1), one-level air inlet section (2), one-level exhaust section (3), secondary air inlet section (4), secondary exhaust section (5), three grades of air inlet sections (6), two exhaust section (7), cooling section (8), grain discharging section (9); The grain import of the top of vertical drying tower be contained in elevator (11) UNICOM of side, at the outlet at bottom of vertical drying tower row's grain auger (10) is housed; Side at the one-level air inlet section of drying tower, secondary air inlet section, three grades of air inlet section positions is equipped with hot air duct (14) respectively, and the outer end of hot air duct (14) connects heat pump (13); Side at the one-level exhaust section of drying tower, secondary exhaust section, two exhaust sections position is equipped with circulating air pipeline (12) respectively; Cold-air duct (15) is equipped with in side at the cooling section (8) of drying tower; Cold-air duct (15) outer end connects heat pump (13).

Its heat pump is by compressor, main condenser, and evaporimeter, regenerator, auxiliary condenser, frequency conversion fan, electric expansion valve, four-way change-over valve, fluid reservoir are formed, and the outlet of hot blast links with the import of hot air duct (14) after main condenser; The air outlet slit of circulating air after the evaporimeter dehumidifying is after evaporimeter, with connecting of main condenser and cold-air duct (15).Main condenser, evaporimeter, auxiliary condenser and regenerator are located in the heat pump (13).

The multistage following current tempering heat pump drying equipment course of work: grain is in elevator is sent into the drying machine main body, and in first cyclic drying process, grain is delivered to elevator by draining crop mechanism, and grain is motion from top to bottom under the effect of gravity; The hot-air that produces through heat pump enters drying machine through hot air duct air inlet section, under the effect of inner horn shape box, hot blast moves from top to bottom, hot blast contacts with grain heat transferred grain, moisture is pulled away, grain neither is heated also and is not cooled between dryer section and exhaust section, finish tempering technology, constantly reduce through grain moisture content after the multistage following current tempering drying, when reaching requirement moisture through behind the cooling section under the effect of the delivery device of grain discharging section outside the eliminating machine, dry waste gas enters the evaporimeter cool-down dehumidification through the circulating air pipeline.If moisture does not reach requirement moisture, through after repeatedly circulating, grain reaches requirement moisture and finishes dry run in elevator reenters drying machine.

Operation principle: start touch screen control system, configure relevant parameter, low-temp low-pressure working medium in the evaporimeter of heat pump absorbs the heat and the gasification of circulating air, and the temperature of circulating air is reduced to dew-point temperature when following, and airborne steam condenses and separates out and be discharged from outside the machine; Circulating air after the heat that absorbs is delivered to main condenser and dehumidified by compressor with working medium carries out heat exchange, atmosphere temperature rising becomes the dry air that the high temperature low humidity has very strong year wet ability, the air inlet section and the grain that enter following current tempering system through hot air duct carry out heat exchange, moisture in the grain is taken away by air, deliver to the dehumidifying of being absorbed heat of evaporimeter that the circulating air pipeline reenters heat pump through exhaust section, air is finished a circulation; Working medium in the main condenser becomes the state of low-temp low-pressure after by the electric expansion valve throttling, enters evaporimeter; When air themperature surpasses design temperature, bring unnecessary heat into auxiliary condenser by reversal valve working medium, loose in environment through blower fan, when air themperature is lower than setting value, working medium comes back to main condenser by reversal valve, owing between main condenser and evaporimeter, regenerator is arranged, effectively reduce the cold process of invalid consumption of heat pump dehumidification process, effectively reduce the specific heat consumption of dry run, through after a plurality of circulations, grain moisture content is when requiring moisture, the portion of air of coming out from evaporimeter enters cooling section, grain is cooled off, and grain is dried to and requires moisture, and the grain discharging section of following current tempering system is got rid of grain outside the machine, otherwise through elevator lifting carrying out cyclic drying, grain is not cooled neither being heated through time between a plurality of air inlet sections and the exhaust section in top-down motion process yet, finishes multistage following current tempering drying process.

Claims (2)

1. multistage following current tempering heat pump drying equipment, it is characterized in that: it is the following current tempering heat pump dehumidification equipment that following current tempering drying process and heat pump removal moisture drying combine, and it comprises heat pump, following current tempering system; There is a vertical drying tower in its described following current tempering system, and drying tower is from top to bottom successively:
Grain storage section (1), one-level air inlet section (2), one-level exhaust section (3), secondary air inlet section (4), secondary exhaust section (5), three grades of air inlet sections (6), two exhaust section (7), cooling section (8), grain discharging section (9); The grain import of the top of vertical drying tower be contained in elevator (11) UNICOM of side, at the outlet at bottom of vertical drying tower row's grain auger (10) is housed; Side at the one-level air inlet section of drying tower, secondary air inlet section, three grades of air inlet section positions is equipped with hot air duct (14) respectively, and the outer end of hot air duct (14) connects heat pump (13); Side at the one-level exhaust section of drying tower, secondary exhaust section, two exhaust sections position is equipped with circulating air pipeline (12) respectively; Cold-air duct (15) is equipped with in side at the cooling section (8) of drying tower; Cold-air duct (15) outer end connects heat pump (13).
2. a kind of multistage following current tempering heat pump drying equipment according to claim 1 is characterized in that:
Its described heat pump is by compressor, main condenser, and evaporimeter, regenerator, auxiliary condenser, frequency conversion fan, electric expansion valve, four-way change-over valve, fluid reservoir is formed, and the outlet of hot blast is connected with the import of hot air duct (14) after main condenser; The air outlet slit of circulating air after the evaporimeter dehumidifying is after evaporimeter, and with being connected of main condenser and cold-air duct (15), main condenser, evaporimeter, auxiliary condenser and regenerator are located in the heat pump (13).
CN201120010734XU 2011-01-14 2011-01-14 Multistage direct-flow tempering heat pump drying device CN201919594U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120010734XU CN201919594U (en) 2011-01-14 2011-01-14 Multistage direct-flow tempering heat pump drying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120010734XU CN201919594U (en) 2011-01-14 2011-01-14 Multistage direct-flow tempering heat pump drying device

Publications (1)

Publication Number Publication Date
CN201919594U true CN201919594U (en) 2011-08-10

Family

ID=44423474

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120010734XU CN201919594U (en) 2011-01-14 2011-01-14 Multistage direct-flow tempering heat pump drying device

Country Status (1)

Country Link
CN (1) CN201919594U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102519235A (en) * 2011-12-07 2012-06-27 Lsa有限责任公司 Countercurrent shaft-drawer type drying machine with movable drawer for drying agglomerations with low mechanical strength
CN102589273A (en) * 2012-03-26 2012-07-18 东南大学 Heat pump drying device
CN102986866A (en) * 2012-10-15 2013-03-27 怀远县巨龙机械制造有限公司 Grain drying tower capable of reutilizing heat energy
CN103363795A (en) * 2012-03-28 2013-10-23 杭州迈驰除湿净化设备有限公司 Operating principle of energy-saving heat pump high-temperature dehumidification circulatory system
CN104663876A (en) * 2015-01-21 2015-06-03 常州大学 Unhusked rice drying device under effect of combination of ultrasonic waves and hot air
CN104663875A (en) * 2015-01-12 2015-06-03 天津科技大学 Multi-graded concurrent tempering heat pump dehumidification and closed type circulating coarse cereal drying process method
CN104839326A (en) * 2015-05-27 2015-08-19 昆山鹿和工程机械有限公司 Mobile drying machine for drying cereals
TWI601925B (en) * 2015-06-26 2017-10-11 住華科技股份有限公司 Air feeding control apparatus and control method thereof
CN108095156A (en) * 2017-12-28 2018-06-01 江苏科恒环境科技有限公司 A kind of mushroom intelligence drying system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102519235A (en) * 2011-12-07 2012-06-27 Lsa有限责任公司 Countercurrent shaft-drawer type drying machine with movable drawer for drying agglomerations with low mechanical strength
CN102589273A (en) * 2012-03-26 2012-07-18 东南大学 Heat pump drying device
CN103363795A (en) * 2012-03-28 2013-10-23 杭州迈驰除湿净化设备有限公司 Operating principle of energy-saving heat pump high-temperature dehumidification circulatory system
CN103363795B (en) * 2012-03-28 2016-01-06 杭州迈驰除湿净化设备有限公司 The method of work of the energy saving heat pump high-temperature dehumidification circulatory system
CN102986866A (en) * 2012-10-15 2013-03-27 怀远县巨龙机械制造有限公司 Grain drying tower capable of reutilizing heat energy
CN104663875A (en) * 2015-01-12 2015-06-03 天津科技大学 Multi-graded concurrent tempering heat pump dehumidification and closed type circulating coarse cereal drying process method
CN104663876A (en) * 2015-01-21 2015-06-03 常州大学 Unhusked rice drying device under effect of combination of ultrasonic waves and hot air
CN104839326A (en) * 2015-05-27 2015-08-19 昆山鹿和工程机械有限公司 Mobile drying machine for drying cereals
TWI601925B (en) * 2015-06-26 2017-10-11 住華科技股份有限公司 Air feeding control apparatus and control method thereof
CN108095156A (en) * 2017-12-28 2018-06-01 江苏科恒环境科技有限公司 A kind of mushroom intelligence drying system

Similar Documents

Publication Publication Date Title
CN204273184U (en) A kind of fruits and vegetables heat pump drying equipment
CN203523764U (en) Energy-saving type soybean drying and quality adjusting device
CN103749670B (en) High-efficiency energy-saving grain drying machine and drying method
CN102358678B (en) Sludge desiccation system
CN201488480U (en) Drying device combined solar and air source heat pump
CN203323274U (en) Large-small environment evaporative cooling, mechanical cooling and mixed ventilation composite air conditioning system
CN201976709U (en) Edible-fungus drying equipment
CN202254660U (en) Equipment for dehumidifying and baking air-source high temperature heat pump
CN201582927U (en) Coupling counterflow-type solution dehumidification fresh air system of heat pump
CN101782253B (en) Energy-saving temperature and moisture automatic adjusting air conditioning unit
CN201429307Y (en) Energy-saving dryer
CN102345971A (en) Air source high-temperature heat pump dehumidification roasting device
CN103673545B (en) Energy saving and environment friendly hot blast vegetable drying device
CN106440748A (en) Heat pump type drying device
CN103070232A (en) Low-temperature circulation dryer for crop seeds
CN103123215A (en) Intelligent hot-air drying control device
CN202709687U (en) Circulating heat recovery heat pump drying system
CN101731327A (en) Centralized drying system of high-humidity grain and drying method thereof
CN102261701B (en) Multilevel heat recovery composite dehumidifying fresh air treatment machine
CN202133046U (en) Solution humidifying air conditioning unit with fresh air pretreatment device
CN201014905Y (en) Multi-layer belt type drying machine
CN102287885A (en) Double-rotating-wheel type evaporative-cooling and mechanical-refrigerating composite air-conditioner set with automatic dust-absorbing function
CN107285592B (en) Two-stage serial heat pump sludge dryer
CN201964722U (en) Solar energy and air stove combined drying equipment
CN205182471U (en) Zero gas consumption combination formula desicator of waste heat recovery regeneration

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110810

Termination date: 20130114