CN106731537A - A kind of freezing type drier - Google Patents

A kind of freezing type drier Download PDF

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Publication number
CN106731537A
CN106731537A CN201611230053.8A CN201611230053A CN106731537A CN 106731537 A CN106731537 A CN 106731537A CN 201611230053 A CN201611230053 A CN 201611230053A CN 106731537 A CN106731537 A CN 106731537A
Authority
CN
China
Prior art keywords
air
outlet
evaporator
heat exchanger
condenser
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201611230053.8A
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Chinese (zh)
Inventor
吴晓峰
赵良川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI BROAD LIVE-STOCK TECHNOLOGY Co Ltd
Original Assignee
HUBEI BROAD LIVE-STOCK TECHNOLOGY Co Ltd
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.)
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Publication date
Application filed by HUBEI BROAD LIVE-STOCK TECHNOLOGY Co Ltd filed Critical HUBEI BROAD LIVE-STOCK TECHNOLOGY Co Ltd
Priority to CN201611230053.8A priority Critical patent/CN106731537A/en
Publication of CN106731537A publication Critical patent/CN106731537A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • B01D53/265Drying gases or vapours by refrigeration (condensation)
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • B01D53/266Drying gases or vapours by filtration

Abstract

The invention discloses a kind of freezing type drier, including compressed air processing module, refrigerant processes module and conduction oil loop module;Compressed air processing module includes air cleaner, forecooling heat exchanger, evaporator and final stage heat exchanger, and evaporator air outlet is outer to be additionally provided with a point water air filtration valve group, and electric draining valve is provided with point water air filtration valve group;Refrigerant processes module includes refrigeration compressor, condenser and the gas-liquid separator being connected on refrigeration compressor, is connected with device for drying and filtering, hot gas bypass valve and expansion valve outside condenser refrigerant outlet in turn;The Heat-transfer Oil Pump that conduction oil loop module includes heat conduction fuel tank and is connected to outside heat conduction fuel tank outlet;The present invention is energy-efficient, it is ensured that the temperature of output squeezing air is constant, and the pollutants such as dust, oil droplet in compressed air can also be effectively removed while removing moisture removal;The compressed air that the constant temperature of present invention output is clean is particularly well-suited to the microculture tank supply of the industries such as pharmacy, food, feed manufacturing.

Description

A kind of freezing type drier
Technical field
The invention belongs to drying equipment technical field, and in particular to a kind of freezing type drier, medicine is can be widely used for, changed The industries such as work, food, feed manufacturing.
Background technology
Conventional compressed air drier has freezing type drier and an absorption drier, adsorbing air drier by Bulky in being more expensive to manufacture, compressed air loss is high(More than 14%), adsorbent need to be frequently changed, it is difficult in many industries Promote.And though the freezing type drier water removal effect of routine is without disadvantages mentioned above, outlet compressed air temperature is unstable, for Some special occasions, such as microorganism(Strain, vaccine), it is necessary to compressed air is maintained at less temperature model in incubation Enclose.
Common scheme is to increase pipeline heater in freezing type drier rear class, by freezing type drier low temperature out Compressed air is heated to preference temperature to meet above-mentioned requirements.Under conditions of the program, the refrigerant of cold conditions low pressure is in evaporation The interior heat taken away by heat exchange in compressed air of device, the dew point value for making compressed air temperature be rapidly reached under specified temp, Vaporous water condenses into aqueous water, and is discharged by moisture trap, so as to reach dry purpose, refrigerant by compressor and The heat that condenser is most taken away from compressed air at last is entered in air, and compressed air outlet temperature is generally in 5-10 DEG C, ripple Dynamic scope is big, and wanting to be higher by this scope needs additional pipeline heater to be heated, and energy consumption increase all exists in many applications Limitation.
The content of the invention
A kind of compressed air drying link can be reduced it is an object of the invention to according to the deficiencies in the prior art, design The freezing type drier of energy consumption, the present invention provides the compressed air of constant temperature, dried and clean for specific occasion.
The technical solution adopted for the present invention to solve the technical problems is:A kind of freezing type drier, including compressed air Processing module, refrigerant processes module and conduction oil loop module;
Described compressed air processing module includes air cleaner, forecooling heat exchanger, evaporator and final stage heat exchanger, institute The forecooling heat exchanger stated includes hot humid air intake, hot humid air outlet slit, low temperature dry air entrance and low temperature Dry air is exported, and described evaporator includes the evaporator air entrance and low temperature that are connected with hot humid air outlet slit Evaporator air outlet, evaporator refrigerant outlet and evaporator refrigerant entrance that dry air entrance is connected, it is described Final stage heat exchanger includes empty with the final stage heat exchanger that evaporator air outlet and low temperature dry air outlet are connected respectively Gas entrance, final stage heat exchanger air outlet slit, final stage heat exchanger conduction oil outlet and final stage heat exchanger heat conduction oil-in, institute A point water air filtration valve group is additionally provided with outside the evaporator air outlet stated, electric draining is provided with described point water air filtration valve group Valve;
Described refrigerant processes module includes refrigeration compressor, condenser and the gas-liquid separation being connected on refrigeration compressor Device, described condenser includes that the condenser that condenser conduction oil outlet is connected with final stage heat exchanger conduction oil outlet is led Deep fat entrance, condenser refrigerant outlet and the condenser refrigerant inlet being connected with refrigeration compressor, described condenser It is connected with device for drying and filtering, hot gas bypass valve and expansion valve, described expansion valve and evaporator refrigeration outside refrigerant outlet in turn Agent entrance is connected, and described gas-liquid separator is also connected with evaporator refrigerant outlet and hot gas bypass valve respectively;
The Heat-transfer Oil Pump that described conduction oil loop module includes heat conduction fuel tank and is connected to outside heat conduction fuel tank outlet, described leads The outlet of hot oil pump is connected with final stage heat exchanger heat conduction oil-in, entrance and the condenser conduction oil of described heat conduction fuel tank Outlet is connected.
A kind of described freezing type drier, also including temperature control modules, described temperature control modules include setting Low temperature dry air entrance and evaporator air outlet between the first electrically operated valve, be arranged on evaporator air outlet with it is low The second electrically operated valve and the electric heater being connected in turn outside final stage heat exchanger air outlet slit between warm dry air outlet And temperature sensor.
A kind of described freezing type drier, is provided with pressure and opens between its condenser refrigerant outlet and device for drying and filtering Close.
A kind of described freezing type drier, its gas-liquid separator and evaporator refrigerant outlet between and Heat-transfer Oil Pump Outlet and final stage heat exchanger heat conduction oil-in between be respectively arranged with first pressure table and second pressure table.
A kind of described freezing type drier, the outlet outside of its electric heater is additionally provided with fine filter.
A kind of described freezing type drier, is additionally provided between the entrance and condenser conduction oil outlet of its heat conduction fuel tank Heat transfer oil filter.
The beneficial effects of the invention are as follows:
The present invention is provided with air cleaner and fine filter, using conduction oil on the basis of the lyophilized formula drying machine of traditional cold As heat transfer medium, the heat in condenser is reclaimed by final stage heat exchanger, for being carried out to outlet compressed air Heating, so as to save electric energy, is arranged on the temperature sensor real-time monitoring temperature of final stage heat exchanger air outlet slit, works as temperature When still can not reach design temperature, automatic built-in electric heater carries out auxiliary heating, and heating process is using change integral PID Regulation, PWM outputs, quick and precisely.
The present invention is energy-efficient, it is ensured that the temperature of output squeezing air is constant, can also effectively be removed while removing moisture removal The pollutants such as dust, oil droplet in compressed air.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Each reference is:1-refrigeration compressor, 2-gas-liquid separator, 3-first pressure table, 4-source of the gas, 5-empty Air filter, 6-expansion valve, 7-device for drying and filtering, 8-hot gas bypass valve, 9-condenser, 91-condenser conduction oil goes out Mouthful, 92-condenser heat conduction oil-in, 93-condenser refrigerant outlet, 94-condenser refrigerant inlet, 10-pressure is opened Close, 11-evaporator, 111-evaporator refrigerant outlet, 112-evaporator refrigerant entrance, 113-evaporator air enters Mouthful, 114-evaporator air outlet, 12-forecooling heat exchanger, 121-hot humid air intake, 122-hot humid is empty Gas is exported, the outlet of 123-low temperature dry air, 124-low temperature dry air entrance, the 13-the first electrically operated valve, 14-point water Air filtration valve group, 15-electric draining valve, 16-second pressure table, 17-heat transfer oil filter, 18-Heat-transfer Oil Pump, 19-heat conduction Fuel tank, 20-electric heater, 21-final stage heat exchanger, 211-final stage heat exchanger air intake, the heat exchange of 212-final stage Device air outlet slit, 213-final stage heat exchanger conduction oil outlet, 214-final stage heat exchanger heat conduction oil-in, the filtering of 22-essence Device, 23-temperature sensor, the 24-the second electrically operated valve.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Shown in reference picture 1, the invention discloses a kind of constant temperature output frozen compressed air dryer, including compressed air Processing module, refrigerant processes module and conduction oil loop module.
Described compressed air processing module includes air cleaner 5, forecooling heat exchanger 12, evaporator 11 and final stage heat Exchanger 21, described forecooling heat exchanger 12 includes hot humid air intake 121, hot humid air outlet slit 122, low temperature Dry air entrance 124 and low temperature dry air outlet 123, described evaporator 11 include and hot humid air outlet slit 122 The evaporator air outlet 114, evaporation that the evaporator air entrance 113 being connected is connected with low temperature dry air entrance 124 Device refrigerant outlet 111 and evaporator refrigerant entrance 112, described final stage heat exchanger 21 include respectively with evaporator air Final stage heat exchanger air intake 211, final stage heat exchanger air that outlet 114 and low temperature dry air outlet 123 are connected Outlet 212, final stage heat exchanger conduction oil outlet 213 and final stage heat exchanger heat conduction oil-in 214, described evaporator air A point water air filtration valve group 14 is additionally provided with outside outlet 114, electric draining valve 15 is provided with described point water air filtration valve group 14;It is described Refrigerant processes module include refrigeration compressor 1, condenser 9 and the gas-liquid separator 2 that is connected on refrigeration compressor 1, institute The condenser 9 stated includes that the condenser that condenser conduction oil outlet 91 is connected with final stage heat exchanger conduction oil outlet 213 is led Deep fat entrance 92, condenser refrigerant outlet 93 and the condenser refrigerant inlet 94 being connected with refrigeration compressor 1, it is described Device for drying and filtering 7, hot gas bypass valve 8 and expansion valve 6, described expansion valve 6 are connected with turn outside condenser refrigerant outlet 93 It is connected with evaporator refrigerant entrance 112, described gas-liquid separator 2 also exports 111 and heat with evaporator refrigerant respectively Gas by-passing valve 8 is connected;Described conduction oil loop module includes heat conduction fuel tank 19 and is connected to outside the outlet of heat conduction fuel tank 19 Heat-transfer Oil Pump 18, the outlet of described Heat-transfer Oil Pump 18 is connected with final stage heat exchanger heat conduction oil-in 214, described heat conduction The entrance of fuel tank 19 is connected with condenser conduction oil outlet 91.
Present invention additionally comprises temperature control modules, described temperature control modules include being arranged on low temperature dry air entrance 124 and evaporator air outlet 114 between the first electrically operated valve 13, be arranged on evaporator air export 114 and low temperature drying The second electrically operated valve 24 and the electrical heating being connected in turn outside final stage heat exchanger air outlet slit 212 between air outlet slit 123 Device 20 and temperature sensor 23;Pressure switch 10 is provided between described condenser refrigerant outlet 93 and device for drying and filtering 7; Between described gas-liquid separator 2 and evaporator refrigerant outlet 111 and Heat-transfer Oil Pump 18 outlet and final stage heat exchanger First pressure table 3 and second pressure table 16 are respectively arranged between heat conduction oil-in 214;Outside the outlet of described electric heater 20 Side is additionally provided with fine filter 22;It is additionally provided between the entrance and condenser conduction oil outlet 91 of described heat conduction fuel tank 19 and is led Deep fat filter 17.
The present invention on the basis of traditional cooling driers, built-in inlet air filter and outlet air filter, using leading Deep fat is reclaimed by heat exchanger as heat transfer medium to the heat in condenser, for being carried out to outlet compressed air Heating, so as to save electric energy, the temperature sensor real-time monitoring temperature of outlet, when temperature still can not reach design temperature When, automatic built-in electric heater carries out auxiliary heating, and heating process is quick accurate using integral PID regulation, PWM outputs is become Really.
When using, the present invention includes below scheme:
1, compressed air handling process:
Source of the gas 4(Inlet compression air)The moist compressed air of 75-90 DEG C of input is by after air cleaner 5, removing air In impurity, it is to avoid impurity causes the heat exchanger effectiveness to reduce into rear class heat exchanger, subsequently into forecooling heat exchanger 12, with From 5-10 DEG C that evaporator 11 comes of low temperature drying compressed air generation heat exchange, the result is that being flowed into from air cleaner 5 Compressed air obtain precooling, temperature reduction, the compressed air come from evaporator 11 is preheated, and temperature is raised.After precooling Compressed air enter back into evaporator 11, with the refrigerant in evaporator 11(Refrigerant)Generation is also further that topmost heat is handed over Change, temperature is greatly lowered, compressed air reaches dew point and produces condensed water, a small amount of oil vapour also to condense at low temperature, finally Drained by point water air filtration valve group 14 and electric draining valve 15, so as to reach dry purpose, the low temperature drying of 5-10 DEG C for obtaining Compressed air enters above-mentioned forecooling heat exchanger 12, is exchanged heat as the refrigerant of forecooling heat exchanger 12, after temperature is raised Further heated by final stage heat exchanger 21 again, in heating process, the real-time monitoring of temperature sensor 23 outlet compressed air temperature Degree, starts the supplement heat energy of electric heater 20 immediately when the thermal source reclaimed from condenser 9 is inadequate, is stable at output temperature and sets Definite value.
2, refrigerant processes flow:
From the high-temperature liquid state out of refrigeration compressor 1(Liquid phase)Refrigerant is imported into condenser 9, relatively low with relative temperature Conduction oil occur heat exchange, conduction oil takes away heat, and sends into heat conduction fuel tank 19 so that refrigerant temperature reduction, The liquid refrigerant of low temperature by after device for drying and filtering 7 at expansion valve 6 because space increases suddenly, rapid spatial expansion vapour Change, siphon away substantial amounts of heat in evaporator 11, vapour liquid separator 2 is entered after vaporization gas-liquid separation occurs, vaporized refrigerant enters system Cold compressor 1 enters above-mentioned circulation.
3, conduction oil circulation process:
Conduction oil in heat conduction fuel tank 19 is exported to final stage heat exchanger 21 by Heat-transfer Oil Pump 18, and above-mentioned 5-10 DEG C dry is pressed Contracting air is heated, and compressed air temperature is raised, and heat conduction oil temperature reduction, the conduction oil after cooling passes through condenser 9 and liquid The refrigerant of state high temperature carries out heat exchange, siphons away the heat in refrigerant and sends into heat conduction fuel tank 19 and is stored, and waits heat conduction Oil pump 18 is pumped.
4, temperature controlled processes:
The compressed air temperature of the detection output of temperature sensor 23, is compared, by result of the comparison with setting value(Error amount) Carry out becoming integral PID computing(Integral operation is decreased or turned off when error is larger, integral operation is introduced when error is smaller), according to The dutycycle of the result regulation output pwm pulse of PID arithmetic, batch (-type) heating, it is ensured that the Stability and veracity of temperature.First The effect of the electrically operated valve 24 of electrically operated valve 13 and second is that first electrically operated valve 13 is closed when setting temperature and being relatively low, the second electricity Movable valve 24 is opened, and the compressed air out of evaporator 11 not by forecooling heat exchanger 12, once heat, so as to reduce by reduction Output temperature.
In fermented bean dregs production during strain Amplification Culture, it is desirable to be passed through 34-36 DEG C of the compressed air temperature of seeding tank, compress Air must not oil-containing and other impurities, using this freezing type drier without additionally increasing pipeline heater and through filter( It is built-in), space is saved, used heat is fully used, and reduces culturing room's environmental temperature fluctuation, reduces energy consumption, and output is empty Temperature degree is constant, helps lend some impetus to growth.
The present invention realizes efficient Waste Heat Reuse, the thermostatic control of output squeezing air, imports and exports double filtration integrally Change design, from energy-conserving and environment-protective, temperature control precisely efficiently, output squeezing be air-dried cleaning etc. it is several in terms of achieve breakthrough. The method have the advantages that:It is energy-efficient, it is ensured that the temperature of output squeezing air is constant, while removing moisture removal, moreover it is possible to effectively removal The pollutants such as dust, oil droplet in compressed air, the present invention realizes efficient Waste Heat Reuse, output squeezing air constant temperature control System, import and export double filtration integrated design, from energy-conserving and environment-protective, temperature control, precisely efficient, output squeezing is air-dried cleaning Breakthrough is achieved etc. several aspects.Energy-conservation and environmental protection are realized by Waste Heat Reuse, heat energy profit can be simultaneously improved using conduction oil heat accumulation With rate, the clean compressed air of the constant temperature of output is particularly well-suited to pharmacy, the microculture of the industry such as food, feed manufacturing Tank is supplied, or other occasions being had higher requirements to compressed air temperature and impurity provide solution.Mesh of the invention Be reduce compressed air drying link in energy consumption, the compressed air of constant temperature, dried and clean is provided for specific occasion.Utilize Conduction oil is easy to thermal energy storage, and be difficult evaporating loss under operating mode as heat transfer medium.The used heat of condenser output is passed through Heat exchanger is reclaimed and is stored in conduction oil, then is heated to outlet compressed air by heat exchanger in outlet port, is realized Energy-conservation, while reducing the influence to environment temperature.Compressed air temperature coordinates pwm pulse formula electricity auxiliary using integral PID control is become Heating is helped, output temperature is accurate.Built-in input filter, the compressed air to entering heat exchanger is purified, it is to avoid dust band Enter heat exchanger, be attached to heat exchange efficiency is influenceed on heat-exchange surface.Built-in outlet fine filter, to be there may be in outlet air A small amount of water, oil or other impurities are filtered, it is ensured that the cleanliness of defeated compressed air.
The above-described embodiments merely illustrate the principles and effects of the present invention, and the embodiment that part uses, for For one of ordinary skill in the art, without departing from the concept of the premise of the invention, can also make it is some deformation and Improve, these belong to protection scope of the present invention.

Claims (6)

1. a kind of freezing type drier, it is characterised in that:Including compressed air processing module, refrigerant processes module and conduction oil Loop module;
Described compressed air processing module includes air cleaner(5), forecooling heat exchanger(12), evaporator(11)And final stage Heat exchanger(21), described forecooling heat exchanger(12)Including hot humid air intake(121), hot humid air outlet slit (122), low temperature dry air entrance(124)Exported with low temperature dry air(123), described evaporator(11)Including with high temperature Humid air is exported(122)The evaporator air entrance being connected(113)With low temperature dry air entrance(124)It is connected Evaporator air is exported(114), evaporator refrigerant outlet(111)With evaporator refrigerant entrance(112), described final stage heat Exchanger(21)Including being exported with evaporator air respectively(114)And low temperature dry air outlet(123)The final stage heat being connected Exchanger air intake(211), final stage heat exchanger air outlet slit(212), final stage heat exchanger conduction oil outlet(213)And end Level heat exchanger heat conduction oil-in(214), described evaporator air outlet(114)It is additionally provided with a point water air filtration valve group outward (14), described divides water air filtration valve group(14)On be provided with electric draining valve(15);
Described refrigerant processes module includes refrigeration compressor(1), condenser(9)Be connected to refrigeration compressor(1)On Gas-liquid separator(2), described condenser(9)Including condenser conduction oil outlet(91)Go out with final stage heat exchanger conduction oil Mouthful(213)The condenser heat conduction oil-in being connected(92), condenser refrigerant outlet(93)And with refrigeration compressor(1)It is connected The condenser refrigerant inlet for connecing(94), described condenser refrigerant outlet(93)It is connected with device for drying and filtering in turn outward(7)、 Hot gas bypass valve(8)And expansion valve(6), described expansion valve(6)With evaporator refrigerant entrance(112)It is connected, it is described Gas-liquid separator(2)Also exported with evaporator refrigerant respectively(111)And hot gas bypass valve(8)It is connected;
Described conduction oil loop module includes heat conduction fuel tank(19)Be connected to heat conduction fuel tank(19)Heat-transfer Oil Pump outside outlet (18), described Heat-transfer Oil Pump(18)Outlet and final stage heat exchanger heat conduction oil-in(214)It is connected, described conduction oil Case(19)Entrance and condenser conduction oil outlet(91)It is connected.
2. a kind of freezing type drier according to claim 1, it is characterised in that described also including temperature control modules Temperature control modules include be arranged on low temperature dry air entrance(124)Exported with evaporator air(114)Between first Electrically operated valve(13), be arranged on evaporator air outlet(114)Exported with low temperature dry air(123)Between the second motor-driven valve Door(24)Be connected to final stage heat exchanger air outlet slit in turn(212)Outer electric heater(20)And temperature sensor(23).
3. a kind of freezing type drier according to claim 2, it is characterised in that described condenser refrigerant outlet (93)With device for drying and filtering(7)Between be provided with pressure switch(10).
4. a kind of freezing type drier according to claim 3, it is characterised in that described gas-liquid separator(2)With steaming Hair device refrigerant outlet(111)Between and Heat-transfer Oil Pump(18)Outlet and final stage heat exchanger heat conduction oil-in(214)It Between be respectively arranged with first pressure table(3)With second pressure table(16).
5. a kind of freezing type drier according to claim 4, it is characterised in that described electric heater(20)Outlet Outside is additionally provided with fine filter(22).
6. a kind of freezing type drier according to claim 5, it is characterised in that described heat conduction fuel tank(19)Entrance With condenser conduction oil outlet(91)Between be additionally provided with heat transfer oil filter(17).
CN201611230053.8A 2016-12-27 2016-12-27 A kind of freezing type drier Pending CN106731537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611230053.8A CN106731537A (en) 2016-12-27 2016-12-27 A kind of freezing type drier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611230053.8A CN106731537A (en) 2016-12-27 2016-12-27 A kind of freezing type drier

Publications (1)

Publication Number Publication Date
CN106731537A true CN106731537A (en) 2017-05-31

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Application Number Title Priority Date Filing Date
CN201611230053.8A Pending CN106731537A (en) 2016-12-27 2016-12-27 A kind of freezing type drier

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108444312A (en) * 2018-03-23 2018-08-24 轻工业环境保护研究所 A kind of dry air closed circulation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108444312A (en) * 2018-03-23 2018-08-24 轻工业环境保护研究所 A kind of dry air closed circulation device

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