CN201569171U

CN201569171U - Integrated controller of hot blast stove

Info

Publication number: CN201569171U
Application number: CN2009202884336U
Authority: CN
Inventors: 黄涛; 姜英伟; 谭威; 朱延旭; 王占红
Original assignee: LIAONING MEDICAL UNIVERSITY
Current assignee: LIAONING MEDICAL UNIVERSITY
Priority date: 2009-12-23
Filing date: 2009-12-23
Publication date: 2010-09-01
Anticipated expiration: 2019-12-23

Abstract

An integrated controller of a hot blast stove comprises a single chip computer and a display panel; a stove temperature probe and a room temperature probe are connected at the input end of the single chip computer; an air blower control relay, an induced fan control relay and an alarm control relay are connected at the output end of the single chip computer; the single chip computer is connected with the display panel is split type; a humidity probe is connected at the input end of the single chip computer; a humidification control delay is connected at the output control end of the single chip computer; the single chip computer is provided with a frequency-converter control end having an output voltage of 1-10V; the single chip computer controls the air blower to work according to room temperature and stove temperature; a set key, an add-substract key and an enter key are installed on the display panel for setting the top and bottom limitation of the room temperature, the top and bottom limitation of the temperature and the top and bottom limitation of the humidity in the stove and the time program of work segment days. The operating speed and the air supply amount of the air blower are adjusted properly according to the change of the room temperature and the stove temperature by linking the room temperature, the stove temperature and the room humidity so that the room temperature and humidity are proper so as to satisfy the requirements for different growth periods of livestock.

Description

The hot-blast stove ICU

Technical field

The utility model is particularly related to a kind ofly suitably adjusts the running speed of air blast and the hot-blast stove ICU of wind supply quantity according to indoor temperature, furnace temperature and indoor humidity interlock mode.

Background technology

The heating of existing livestock and poultry house is adopted independent control mode with the hot-blast stove controller, promptly according to setting the running of furnace temperature bound control air-introduced machine; According to setting the running of room temperature bound control air intake air blast.The problem of its existence is: 1, when room temperature does not meet the requirements of temperature, air blast turns round always, in case furnace temperature will be advanced cold wind after reducing, room temperature is reduced rapidly.2, can not take rational wind supply quantity according to the room temperature variation, room temperature is stable inadequately.3, can not carry out humidification control, because suitable humidity in can't keeping giving up is unfavorable for the growth of livestock and poultry.4, can not store working procedure according to the time, can't satisfy the requirement of the different growth phases of livestock and poultry.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of hot-blast stove ICU, adopt indoor temperature, furnace temperature and indoor humidity interlock mode, and suitably adjust the running speed and the wind supply quantity of air blast according to room temperature and furnace temperature situation of change, indoor temperature, humidity are suited, satisfy the requirement of the different growth phases of livestock and poultry.

Technical solution of the present utility model is:

A kind of hot-blast stove ICU, comprise single-chip microcomputer and display floater, signal input part at single-chip microcomputer is connected to furnace temperature probe and room temperature probe, be connected to the air blast control relay in the control output end of single-chip microcomputer, air-introduced machine control relay and controlling alarm relay, its special character is: split is connected described single-chip microcomputer with display floater, signal input part at single-chip microcomputer also is connected to moisture probe, output control terminal at single-chip microcomputer is connected to by monolithic processor controlled adhesive when humidity is lower than preset lower limit in the temperature range that room temperature is being set, the humidification control relay that humidity disconnects when being higher than the capping value, single-chip microcomputer is provided with the Frequency Converter Control end that output voltage is 0-10V, room temperature that described single-chip microcomputer is popped one's head in according to furnace temperature and the room temperature probe is gathered and the judgement of furnace temperature information summary also provide Frequency Converter Control end output voltage, air blast control relay control signal, on display floater, be provided with setting key and add, subtract key and definite key, be used for setting the indoor temperature bound, the time-program(me) of temperature bound and humidity bound and fragmentary works fate in the stove, every section interior indoor temperature bound of time, interior temperature bound of stove and humidity bound are carried out alternating temperature and are controlled automatically.

The utility model has the advantages that:

First the air blast running that 1, can be connected with frequency converter by Single-chip Controlling according to room temperature and furnace temperature situation and the running of rotating speed (low-speed running) and second air blast that is connected with the air blast control relay change air output and make ambient temperature stable; Can avoid in addition because of room temperature meets the requirements of when setting value, air blast does not turn round and causes in the hot-blast stove temperature too high, and the thick-walled seamless steel pipes life-span of heating usefulness is reduced, and blower motor is overheated.

2, increase hygrometry, and room temperature, humidity are carried out Comprehensive Control, room temperature reaches when humidity is lower than preset lower limit after the requirement temperature and starts the humidifier humidification, stops humidification when reaching the capping value.

3, the storage of time-program(me) and corresponding work parameter is set

By setting key with add, subtract key and can be transformed into automatic control program, setting comprises the time-program(me) and the corresponding operating parameter values of hot-blast stove work fate (working procedure that can store 1～20 day), comprise temperature bound and humidity bound in indoor temperature bound, the stove, hot-blast stove changes operating parameter values automatically according to time-program(me) and realizes control automatically, reaches the purpose that regulates the room temperature automatically.

4, controller and display floater split design, the division of labor is clear and definite, and faceplate part is flexible for installation, and wiring is simple.

5, increase warning function, be lower than lower limit, can report to the police when humidity surpasses setting bound, ambient temperature above the setting bound in generation communication failure, furnace temperature, alert is searched reason and is suitably handled, and avoids because of room temperature or the overproof sick or dead economic loss of animal that causes of furnace temperature.

6, the hot-blast stove with this hot-blast stove ICU control can be widely used in the place that hen house, pig house, warmhouse booth, mushroom booth and baking room etc. need carry out temperature, humidity control.

Description of drawings

Fig. 1 is circuit theory diagrams of the present utility model;

Fig. 2 is a display floater schematic diagram in the utility model;

Fig. 3 is the utility model and hot-blast stove connection layout.

Among the figure: furnace temperature probe 1, room temperature probe 2, moisture probe 3, display floater 4, measured value display window 401, setting value display window 402, query key 403, setting key 404, add, subtract key 405,406, determine key 407, single-chip microcomputer 5, Frequency Converter Control end 501, frequency converter 6, air blast control relay 7, air-introduced machine control relay 8, humidification control relay 9, controlling alarm relay 10, hot-

blast stove

11,12, the second air blasts 13 of first air blast, air-introduced machine 14.

The specific embodiment

As shown in the figure, the utility model has the single-chip microcomputer 5 of a split connection and mainly finishes demonstration, the display floater 4 of the input function of warning and parameter, single-chip microcomputer 5 is mainly finished control and is realized measurement function, display floater 4 is provided with furnace temperature, room temperature and moisture measurement value display window 401 and setting value display window 402, and query key 403, setting key 404, add, subtract key 405,406 and definite key 407, be used for setting the indoor temperature bound, the time-program(me) of temperature bound and humidity bound and fragmentary works fate in the stove, every section interior indoor temperature bound of time, interior temperature bound of stove and humidity bound are carried out alternating temperature and are controlled automatically.Signal input part at single-chip microcomputer 5 is connected to furnace temperature probe 1, room temperature probe 2 and moisture probe 3, be connected to air blast control relay 7, air-introduced machine control relay 8, humidification control relay 9 and the controlling alarm relay 10 that is used for controlling first air blast in the control output end of single-chip microcomputer 5, described humidification control relay 9 is disconnected when being higher than the capping value when room temperature adhesive when humidity is lower than preset lower limit during in the design temperature interval, humidity by single-chip microcomputer 5 control.Single-chip microcomputer 5 is provided with the Frequency Converter Control end 501 that output voltage is 0-10V, and the frequency converter 6 by 501 controls of Frequency Converter Control end are connected with second air blast is used for realizing VFC, makes second air blast low-speed running.

During work, single-chip microcomputer 5 sends to display floater 4 by the communication data line with resulting measurement and equipment state situation, show furnace temperature respectively by display floater 4, indoor temperature, indoor humidity measured value and setting value, and the control data that display floater 4 is produced preserved, then according to furnace temperature probe 1, room temperature that room temperature probe 2 is gathered and furnace temperature information summary judge to Frequency Converter Control end 501 output voltages or give air blast control relay 7 control signals or provide Frequency Converter Control end 501 output voltages simultaneously and air blast control relay 7 control signals that the concrete course of work is as follows:

1, indoor temperature scope :-20～60 ℃ of precision ± 0.1 ℃.

Gather furnace temperature and indoor temperature by furnace temperature probe 1 and room temperature probe 2, after indoor temperature is lower than uniform temperature, make the frequency converter 6 that is connected with single-chip microcomputer 5 send frequency variation signal by single-chip microcomputer 5, drive first air blast 12 low-speed running by frequency converter 6, and increase frequency gradually according to furnace temperature situation (furnace temperature be higher than 50 ℃ after), driving first air blast 12 increases running speed gradually; Delay time about 5 minutes (time is adjustable), after furnace temperature raises, when room temperature is lower than setting value, by 7 actions of single-chip microcomputer 5 control air blast control relays, start second air blast 13 running, reach the indoor temperature upper limit after, second air blast 13 stops, first air blast 12 keeps minimum speed running (10Hz), guarantees ambient-temp-stable.Because of first air blast 12 low-speed running, can avoid prolonging the service life of hot-blast stove 11 in addition because of the too high scaling loss heating of furnace temperature thick-walled seamless steel pipes.After if furnace temperature is sent the low-temperature warning signal, first air blast 12 quits work.

2, temperature range in the stove :-30～800 ℃ of precision ± 2 ℃.

Temperature is provided with ceiling temperature and stops air-introduced machine 14, the first lower limit temperatures and start air-introduced machine 14, the second lower limit temperatures (50 ℃) and send alarm signal in the stove, requires the hand firing; Delaying time, temperature does not rise after 5 minutes, and air-introduced machine 14 quits work.

3. humidity display

Carry out hygrometry and control by moisture probe 3 and single-chip microcomputer 5, and by humidity value (error ± 2%) in display floater 4 display rooms; Preestablish the humidity upper limit value and lower limit value, be lower than lower limit, be higher than upper limit alarm.Indoor temperature is in the temperature bound interval of setting the time, single-chip microcomputer 5 output control signals when humidity is lower than preset lower limit, and 9 adhesives of humidification control relay start the humidifier humidification, and humidity stops humidification when reaching the capping value.

4, increase warning function, make 10 adhesives of controlling alarm relay by single-chip microcomputer 5 controls when following fault takes place, external alarm carries out sound and light alarm, and shows failure code on display floater.

Failure code	Failure condition
Failure code	Failure condition	Er1	Communication failure
Er2	Furnace temperature is lower than lower limit	Er1	Communication failure
Er2	Furnace temperature is lower than lower limit	Er3	Humidity is higher than the upper limit
Er4	Humidity is lower than lower limit	Er3	Humidity is higher than the upper limit
Er4	Humidity is lower than lower limit	Er5	Room temperature is higher than the upper limit
Er6	Room temperature is lower than lower limit	Er5	Room temperature is higher than the upper limit

5, the storage of time showing and program is set

Can control automatically by the time-program(me) of hot-blast stove running and the operating parameter values of setting, regulate the room temperature automatically, furnace temperature and humidity.

As the 1st day～the 2nd day, 35 ℃ of the indoor temperature upper limits, 33 ℃ of lower limits, 500 ℃ of the furnace temperature upper limits, 300 ℃ of lower limits, the relative humidity upper limit 85%, lower limit 65%; The the 3rd～5th day, 33 ℃ of the indoor temperature upper limits, 31 ℃ of lower limits, 480 ℃ of the furnace temperature upper limits, 280 ℃ of lower limits, the relative humidity upper limit 80%, lower limit 65%.

Claims

1. hot-blast stove ICU, comprise single-chip microcomputer and display floater, signal input part at single-chip microcomputer is connected to furnace temperature probe and room temperature probe, be connected to the air blast control relay in the control output end of single-chip microcomputer, air-introduced machine control relay and controlling alarm relay, it is characterized in that: split is connected described single-chip microcomputer with display floater, signal input part at single-chip microcomputer also is connected to moisture probe, output control terminal at single-chip microcomputer is connected to by monolithic processor controlled adhesive when humidity is lower than preset lower limit in the temperature range that room temperature is being set, the humidification control relay that humidity disconnects when being higher than the capping value, single-chip microcomputer is provided with the Frequency Converter Control end that output voltage is 0-10V, room temperature that described single-chip microcomputer is popped one's head in according to furnace temperature and the room temperature probe is gathered and the judgement of furnace temperature information summary also provide Frequency Converter Control end output voltage, air blast control relay control signal, on display floater, be provided with setting key and add, subtract key and definite key, be used for setting the indoor temperature bound, the time-program(me) of temperature bound and humidity bound and fragmentary works fate in the stove, every section interior indoor temperature bound of time, interior temperature bound of stove and humidity bound are carried out alternating temperature and are controlled automatically.