CN212216132U - Dehumidification heating system - Google Patents
Dehumidification heating system Download PDFInfo
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- CN212216132U CN212216132U CN202020272336.4U CN202020272336U CN212216132U CN 212216132 U CN212216132 U CN 212216132U CN 202020272336 U CN202020272336 U CN 202020272336U CN 212216132 U CN212216132 U CN 212216132U
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Abstract
The utility model provides a dehumidifying and heating system, which comprises a water paint drying chamber, and a fresh air port, a surface cooler, a cold water pipeline, a heat exchanger, a hot water pipeline, a filtering device, a circulating fan and a waste gas treatment fan which are arranged on an air inlet pipeline of the water paint drying chamber; the surface cooler dehumidifies the fresh air introduced into the fresh air inlet; the heat exchanger gas heats the dehumidified fresh air, the filter device filters the heated fresh air, the filter device is connected with the circulating fan and the water-based paint drying chamber through an air supply pipeline, the water-based paint drying chamber is connected with the circulating fan through the air supply pipeline, and the filtered fresh air is sent into the water-based paint drying chamber through the circulating fan; the utility model discloses can the required humidity requirement of effectual control water based paint drying chamber for automobile body lacquer quality can not obtain effectual control. The temperature and humidity in the heating and dehumidifying unit can be strictly controlled, and the temperature and humidity requirements of air supply are guaranteed.
Description
Technical Field
The utility model relates to a dehumidification heating technical field, in particular to dehumidification heating system.
Background
At present, in the prior art, a heating method of a water paint drying chamber mainly heats a hot blast stove consisting of a circulating fan, a heating and heat exchanger and a connecting air pipe, fresh air is supplemented to a flash drying chamber through a fresh air inlet of a heating unit, waste gas is discharged to the water paint drying chamber through a waste gas exhaust centrifugal fan, and a dehumidifying device is not provided. The method can not control the humidity requirement of the water paint drying chamber, so that the quality of the vehicle body paint can not be effectively controlled.
SUMMERY OF THE UTILITY MODEL
The utility model provides a dehumidification heating system for solve the condition of the quality of unable effective control automobile body paint.
A dehumidifying and heating system comprising: the system comprises a water-based paint drying chamber, and a fresh air inlet, a surface air cooler, a cold water pipeline, a heat exchanger, a hot water pipeline, a filtering device, a circulating fan and a waste gas treatment fan which are arranged on an air inlet pipeline of the water-based paint drying chamber; wherein the content of the first and second substances,
the fresh air inlet is used for introducing fresh air, the fresh air inlet is connected with an input port of the surface air cooler through the air inlet pipeline, and the surface air cooler dehumidifies the fresh air introduced into the fresh air inlet;
the surface cooler is connected with an input port of the heat exchanger through the air inlet pipeline, the heat exchanger heats the dehumidified fresh air, and the surface cooler is also connected with the cold water pipeline;
the output port of the heat exchanger is connected with the filtering device through the air inlet pipeline to filter the heated fresh air, wherein the heat exchanger is also connected with the hot water pipeline;
the filtering device is connected with the circulating fan and the water-based paint drying chamber through an air supply pipeline, the water-based paint drying chamber is connected with the circulating fan through the air supply pipeline, and the filtered fresh air is sent into the water-based paint drying chamber through the circulating fan; wherein the content of the first and second substances,
the circulating fan is also connected with the heat exchanger through the air supply pipeline;
the water paint drying chamber is connected with the waste gas treatment fan through the air supply pipeline;
and a temperature and humidity sensor is arranged on the air supply pipeline.
As an embodiment of the present invention: the cold water pipeline is provided with a first electric three-way valve; the hot water pipeline is connected with a second electric three-way valve.
As an embodiment of the present invention: a humidity signal output end of the temperature and humidity sensor is connected with a signal input end of the first electric three-way valve, so that the linkage of the first electric three-way valve and a humidity signal of the temperature and humidity sensor is realized;
and the temperature signal output end of the temperature and humidity sensor is connected with the signal input end of the second electric three-way valve, so that the second electric three-way valve is interlocked with the temperature signal of the temperature and humidity sensor.
As an embodiment of the present invention: the above-mentioned
The filtering apparatus further comprises a filtering controller and a filtering detector, wherein,
the detector is also connected with the temperature and humidity sensor.
As an embodiment of the present invention: the filter controller comprises a display screen, an MCU processor, an external power circuit and a signal control circuit; wherein the content of the first and second substances,
the MCU processor is connected with the display screen through a pin header and is electrically connected with the external power supply circuit and the signal control circuit;
the external power supply circuit is electrically connected with the display screen and the signal control circuit.
The external power supply circuit includes: the circuit comprises a rectifier bridge, a voltage reducer, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first voltage stabilizing diode, a second voltage stabilizing diode, a comparator, a first resistor, a second resistor, a first triode, a second triode and a relay; wherein the content of the first and second substances,
the positive electrode output end of the rectifier bridge is electrically connected with the input end of the voltage reducer, the negative electrode of the rectifier bridge is electrically connected with the negative electrodes of the first capacitor, the second capacitor, the third capacitor and the fourth capacitor, and the input end of the rectifier bridge is connected with an external power supply;
the output end of the voltage reducer is electrically connected with the anode of the first capacitor, and the input ends of the first voltage stabilizing diode and the second voltage stabilizing diode are electrically connected;
the output end of the first voltage-stabilizing diode is electrically connected with the base electrode of the first triode and the anode of the second capacitor;
the second voltage stabilizing diode is electrically connected with a positive phase input end of the comparator, is electrically connected with an inverted phase input end of the comparator through the first resistor, and is electrically connected with a collector electrode of the second triode through the second resistor;
the output end of the comparator is electrically connected with the control end of the relay;
an emitting electrode of the second triode is electrically connected with the input end of the relay and the positive electrode of the fourth capacitor, and a base electrode of the second triode is electrically connected with a collector electrode of the first triode;
and the emitter of the first triode is electrically connected with the anode of the third capacitor.
As an embodiment of the present invention: the signal control circuit includes: the third resistor, the fourth resistor, the fifth resistor, the sixth resistor, the seventh resistor, the eighth resistor, the ninth resistor, the tenth resistor, the third triode, the fourth triode, the fifth triode, the sixth triode, the seventh triode, the fifth capacitor, the third voltage stabilizing diode, the relay switch and the rheostat; wherein the content of the first and second substances,
the output end of the relay switch is electrically connected with the input end of the rheostat;
the third resistor is electrically connected with the base electrode of the third triode, the collector electrode of the third triode is electrically connected with the first control end of the rheostat through a seventh resistor, and the emitter electrode of the third triode is electrically connected with the input end of the relay switch;
the fourth resistor is electrically connected with the base electrode of the fourth triode, the collector electrode of the fourth triode is electrically connected with the second control end of the rheostat through an eighth resistor, and the emitter electrode of the fourth triode is electrically connected with the input end of the relay switch;
the fifth resistor is electrically connected with the base electrode of the fifth triode, the collector electrode of the fifth triode is electrically connected with the third control end of the rheostat, and the emitter electrode of the fifth resistor is electrically connected with the input end of the relay switch;
the sixth resistor is electrically connected with the base electrode of the sixth triode, the collector electrode of the sixth triode is electrically connected with the fourth control end of the rheostat, the emitter electrode of the sixth triode is electrically connected with the base electrode of the seventh triode, and the emitter electrode of the sixth triode is also electrically connected with the emitter electrode of the seventh triode through a tenth resistor;
and the collector electrode of the seventh triode is electrically connected with the positive electrode of the fifth capacitor, the ninth resistor is electrically connected with the relay switch and the input end of the third voltage stabilizing diode, the output end of the third voltage stabilizing diode is electrically connected with the input end of the relay switch, and the emission set of the seventh triode is electrically connected with the negative electrode of the fifth capacitor.
The beneficial effects of the utility model reside in that: in the process of introducing the fresh air, the surface cooler can be used for dehumidifying the introduced fresh air; heating the dehumidified fresh air through a heat exchanger, so that the fresh air can be used for drying the water-based paint; impurities in the fresh air are cleared through the filtering device, so that the purity of the fresh air is ensured; fresh air is sent into the water paint drying chamber through a circulating fan; and the circulating fan can also extract the air of the water-based paint drying chamber and realize reutilization through the heat exchanger and the filtering device, so that the energy is saved. At last, the vehicle body is painted and then is baked to generate water vapor and waste gas through the waste gas treatment fan, the generated water vapor and the generated waste gas are sent to a workshop waste gas treatment device through the waste gas treatment fan to be subjected to waste gas treatment, and the problem of waste gas removal is solved. Therefore, the utility model discloses can the required humidity requirement of effectual control water paint drying chamber for automobile body lacquer quality can not obtain effectual control. The temperature and humidity in the heating and dehumidifying unit can be strictly controlled, and the temperature and humidity requirements of air supply are guaranteed.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a block diagram of a system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an external power circuit according to an embodiment of the present invention;
fig. 3 is a signal control circuit according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Fig. 1 shows a system composition structure diagram of a dehumidifying and heating system according to the present invention. It is characterized by comprising: the system comprises a water-based paint drying chamber, and a fresh air inlet, a surface air cooler, a cold water pipeline, a heat exchanger, a hot water pipeline, a filtering device, a circulating fan and a waste gas treatment fan which are arranged on an air inlet pipeline of the water-based paint drying chamber; wherein the content of the first and second substances,
the fresh air inlet is used for introducing fresh air, the fresh air inlet is connected with an input port of the surface air cooler through the air inlet pipeline, and the surface air cooler dehumidifies the fresh air introduced into the fresh air inlet;
the surface cooler is connected with an input port of the heat exchanger through the air inlet pipeline, the heat exchanger heats the dehumidified fresh air, and the surface cooler is also connected with the cold water pipeline;
the output port of the heat exchanger is connected with the filtering device through the air inlet pipeline, the filtering device filters the heated fresh air, and the heat exchanger is also connected with the hot water pipeline;
the filtering device is connected with the circulating fan and the water-based paint drying chamber through an air supply pipeline, the water-based paint drying chamber is connected with the circulating fan through the air supply pipeline, and the filtered fresh air is sent into the water-based paint drying chamber through the circulating fan; wherein the content of the first and second substances,
the circulating fan is also connected with the heat exchanger through the air supply pipeline;
the water paint drying chamber is connected with the waste gas treatment fan through the air supply pipeline;
and a temperature and humidity sensor is arranged on the air supply pipeline.
The principle of the utility model lies in that this system includes: the system comprises a water-based paint drying chamber, and a fresh air inlet, a surface air cooler, a cold water pipeline, a heat exchanger, a hot water pipeline, a filtering device, a circulating fan and a waste gas treatment fan which are arranged on an air inlet pipeline of the water-based paint drying chamber. The new trend of workshop passes through the new trend mouth, earlier through the surface cooler to the new trend dehumidify and heat the new trend through the heat exchanger again, later filter the new trend through filter equipment, guarantee the cleanliness factor of new trend, the new trend after will filtering is sent into the water paint drying chamber heating area through circulating fan and is heated the automobile body, install temperature and humidity sensor on the blast pipe, humidity signal is chain with electronic three-way valve signal in the cold water pipeline of surface cooling in the temperature and humidity sensor, the humidity of effective control air supply, temperature signal is chain with electronic three-way valve signal in the heat exchanger hot water pipeline, the temperature of effective control air supply.
The beneficial effects of the utility model reside in that: in the process of introducing the fresh air, the surface cooler can be used for dehumidifying the introduced fresh air; heating the dehumidified fresh air through a heat exchanger, so that the fresh air can be used for drying the water-based paint; impurities in the fresh air are cleared through the filtering device, so that the purity of the fresh air is ensured; fresh air is sent into the water paint drying chamber through a circulating fan; and the circulating fan can also extract the air of the water-based paint drying chamber and realize reutilization through the heat exchanger and the filtering device, so that the energy is saved. At last, the vehicle body is painted and then is baked to generate water vapor and waste gas through the waste gas treatment fan, the generated water vapor and the generated waste gas are sent to a workshop waste gas treatment device through the waste gas treatment fan to be subjected to waste gas treatment, and the problem of waste gas removal is solved. Therefore, the utility model discloses can the required humidity requirement of effectual control water paint drying chamber for automobile body lacquer quality can not obtain effectual control. The temperature and humidity in the heating and dehumidifying unit can be strictly controlled, and the temperature and humidity requirements of air supply are guaranteed.
As an embodiment of the present invention: the cold water pipeline is provided with a first electric three-way valve; the hot water pipeline is connected with a second electric three-way valve.
The principle of the utility model lies in: the electric three-way valves are arranged on the cold water pipeline and the hot water pipeline, so that cold water and hot water input by the cold water pipeline and the hot water pipeline can be controlled.
Has the advantages that: the dehumidification efficiency of the air cooler and the heating efficiency of the heat exchanger are controlled by controlling the input of cold water and hot water.
As an embodiment of the present invention: a humidity signal output end of the temperature and humidity sensor is connected with a signal input end of the first electric three-way valve, so that the linkage of the first electric three-way valve and a humidity signal of the temperature and humidity sensor is realized;
and the temperature signal output end of the temperature and humidity sensor is connected with the signal input end of the second electric three-way valve, so that the second electric three-way valve is interlocked with the temperature signal of the temperature and humidity sensor.
The principle of the utility model lies in: the utility model realizes the signal linkage of the electric three-way valve and the temperature and humidity sensor by connecting different signal output ends of the temperature and humidity sensor with the electric three-way valve; so that the electric three-way valve is automatically controllable.
The utility model has the advantages that: the utility model discloses an electronic three-way valve control signal's of temperature and humidity sensor's signal effect makes the utility model discloses a cold water pipeline and hot water pipeline's cold water and the input of hot water can automatic control.
As an embodiment of the present invention: the filtering apparatus further comprises a filtering controller and a filtering detector, wherein,
the filter detector is also connected with the temperature and humidity sensor.
The principle of the utility model lies in: through analyzing the component structure of the filtering device, the efficiency of dehumidification and heating can be controlled according to the detection effect under the condition that the filtering detection is connected with the temperature and humidity sensor.
The beneficial effects of the utility model reside in that: the utility model can detect the fresh air which enters the ventilation process by analyzing the composition structure of the filtering device; make filter equipment can detect filterable efficiency to carry out the relevance through filtration efficiency and humiture, make the utility model discloses can adjust temperature and humidity sensor through filterable efficiency, the temperature and the humidity of the new trend of entering are controlled and are handled.
As an embodiment of the present invention: the filter controller comprises a display screen, an MCU processor, an external power circuit and a signal control circuit; wherein the content of the first and second substances,
the MCU processor is connected with the display screen through a pin header and is electrically connected with the external power supply circuit and the signal control circuit; the MCU processor is connected with the display screen through the pin header to realize the display function of the system; the utility model discloses can cash and show control parameter.
The external power supply circuit is electrically connected with the display screen and the signal control circuit. And electric energy is provided for the display screen and the signal control circuit.
An external power circuit as described in fig. 2, said external power circuit comprising: the circuit comprises a rectifier bridge A1, a voltage reducer S, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a first voltage stabilizing diode D1, a second voltage stabilizing diode D2, a comparator Q1, a first resistor R1, a second resistor R2, a first triode VT1, a second triode VT2 and a relay O; wherein the content of the first and second substances,
the positive electrode output end of the rectifier bridge A1 is electrically connected with the input end of the voltage reducer S, the negative electrode of the rectifier bridge A1 is electrically connected with the negative electrodes of the first capacitor C1, the second capacitor C2, the third capacitor C3 and the fourth capacitor C4, and the input end of the rectifier bridge A1 is connected with an external power supply; the input end of the rectifier bridge A1 is an external power supply, the rectifier bridge can change alternating current into direct current, the voltage of the direct current is large, therefore, the voltage is reduced through the voltage reducer S, and the voltage reduction range and amplitude of the voltage reducer are selected in advance according to the required voltage. Has the advantages that: can acquire a lower direct current as the utility model discloses the circuit of equipment keeps lasting stable charging. The first capacitor C1, the second capacitor C2, the third capacitor C3 and the fourth capacitor C4 isolate direct current in the circuit and filter current at the same time.
The output end of the voltage reducer S is electrically connected with the anode of the first capacitor C1, and the input ends of the first voltage stabilizing diode D1 and the second voltage stabilizing diode D2; the voltage after voltage reduction ensures that the circuit keeps the stability of the voltage between sudden on and off through the first voltage stabilizing diode and the second voltage stabilizing diode. Preventing the circuit from being burned out.
The output end of the first voltage-stabilizing diode D1 is electrically connected with the base electrode of the first triode VT1 and the positive electrode of the second capacitor C2;
the second zener diode D2 is electrically connected to the non-inverting input terminal of the comparator Q1, the inverting input terminal of the comparator Q1 through the first resistor R1, and the collector of the second transistor VT2 through the second resistor R2;
the output end of the comparator Q1 is electrically connected with the control end of the relay O;
an emitter electrode of the second triode VT2 is electrically connected with the input end of the relay and the anode electrode of the fourth capacitor C4, and a base electrode of the second triode VT2 is electrically connected with a collector electrode of the first triode VT 1;
the emitter of the first transistor VT1 is electrically connected with the anode of the third capacitor C3.
The utility model has the advantages of the following beneficial effects: obtaining a chargeable current through operations of rectification, voltage reduction and the like; then, the automatic charging is realized through the first triode VT1 and the second triode VT 2; and the comparator Q1 controls the on and off of the relay through voltage comparison, so that the automatic control of the charging circuit is realized.
As an embodiment of the present invention: a signal control circuit as described in figure 3 comprising: a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a third triode VT3, a fourth triode VT4, a fifth triode VT5, a sixth triode VT6, a seventh triode VT7, a fifth capacitor C5, a third voltage-stabilizing diode D3, a relay switch K and a rheostat RS; wherein the content of the first and second substances,
the output end of the relay switch K is electrically connected with the input end of the rheostat RS;
the third resistor R3 is electrically connected with the base electrode of the third triode VT3, the collector electrode of the third triode VT3 is electrically connected with the first control end of the rheostat RS through a seventh resistor R7, and the emitter electrode of the third triode VT3 is electrically connected with the input end of the relay switch K;
the fourth resistor R4 is electrically connected with the base electrode of the fourth triode VT4, the collector electrode of the fourth triode VT4 is electrically connected with the second control end of the rheostat RS through an eighth resistor R8, and the emitter electrode of the fourth triode VT4 is electrically connected with the input end of the relay switch K;
the fifth resistor R5 is electrically connected with the base of the fifth triode VT5, the collector of the fifth triode VT5 is electrically connected with the third control end of the rheostat RS, and the emitter of the fifth resistor RS is electrically connected with the input end of the relay switch K;
the sixth resistor R6 is electrically connected to the base of the VT6 of the sixth transistor, the collector of the sixth transistor VT6 is electrically connected to the fourth control terminal of the varistor RS, the emitter of the sixth transistor VT6 is electrically connected to the base of the seventh transistor VT7, and the emitter of the sixth transistor VT6 is further electrically connected to the emitter of the seventh transistor VT7 through a tenth resistor R10;
the collecting electrode of the seventh triode VT7 with the anodal electricity of fifth electric capacity C5 is connected, through ninth resistance R9 with relay switch K is connected, with the input electricity of third zener diode D3 is connected, the output of third zener diode D3 with relay switch K's input electricity is connected, the transmission set of seventh triode VT7 still with the negative pole electricity of fifth electric capacity C5 is connected.
The utility model discloses a principle and beneficial effect lie in: the MCU processor is electrically connected with the control circuit through four input channels, multi-level control of signals is realized, the current is limited to input current signals through a third resistor R3, a fourth resistor R4, a fifth resistor R5 and a sixth resistor R6, the current is stabilized, the input current is stable, the current is stable through a third triode VT3, a fourth triode VT4, a fifth triode VT5, the collecting electrodes of a plurality of triodes of a sixth triode VT6 are connected with the control input end of the resistor, and the resistance value of the resistor can be controlled. Because the signal input by the MCU processor only has one channel signal at a time, the single-channel control of signal control short circuit is realized. The adjacent channels are not mutually contradictory.
Through the emitter of a plurality of triodes of third triode VT3, fourth triode VT4, fifth triode VT5, sixth triode VT6 and relay switch K are connected, the control of multi-channel single-pole switch is realized, and the consumption of components is reduced. And the seventh transistor VT7 controls the filter device to be turned off.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A dehumidification heating system is characterized by comprising a water-based paint drying chamber, and a fresh air port, a surface cooler, a cold water pipeline, a heat exchanger, a hot water pipeline, a filtering device, a circulating fan and a waste gas treatment fan which are arranged on an air inlet pipeline of the water-based paint drying chamber; wherein the content of the first and second substances,
the fresh air inlet is used for introducing fresh air, the fresh air inlet is connected with an input port of the surface air cooler through the air inlet pipeline, and the surface air cooler dehumidifies the fresh air introduced into the fresh air inlet;
the surface cooler is connected with an input port of the heat exchanger through the air inlet pipeline, the heat exchanger heats the dehumidified fresh air, and the surface cooler is also connected with the cold water pipeline;
the output port of the heat exchanger is connected with the filtering device through the air inlet pipeline, and the filtering device filters the heated fresh air; wherein the content of the first and second substances,
the heat exchanger is also connected with the hot water pipeline;
the filtering device is connected with the circulating fan and the water-based paint drying chamber through an air supply pipeline, the water-based paint drying chamber is connected with the circulating fan through the air supply pipeline, and the filtered fresh air is sent into the water-based paint drying chamber through the circulating fan; wherein the content of the first and second substances,
the circulating fan is also connected with the heat exchanger through the air supply pipeline;
the water paint drying chamber is connected with the waste gas treatment fan through the air supply pipeline;
and a temperature and humidity sensor is arranged on the air supply pipeline.
2. A dehumidifying and heating system as claimed in claim 1 wherein said cold water line is provided with a first electrically operated three-way valve; the hot water pipeline is connected with a second electric three-way valve.
3. The dehumidifying and heating system of claim 2, wherein a humidity signal output terminal of the temperature and humidity sensor is connected to a signal input terminal of the first electric three-way valve, so as to realize the humidity signal linkage between the first electric three-way valve and the temperature and humidity sensor;
and the temperature signal output end of the temperature and humidity sensor is connected with the signal input end of the second electric three-way valve, so that the second electric three-way valve is interlocked with the temperature signal of the temperature and humidity sensor.
4. A dehumidifying and heating system as claimed in claim 1 wherein the filter means further comprises a filter controller and a filter detector, wherein,
the detector is also connected with the temperature and humidity sensor.
5. The dehumidifying and heating system of claim 4 wherein the filter controller comprises a display screen, an MCU processor, an external power circuit, and a signal control circuit; wherein the content of the first and second substances,
the MCU processor is connected with the display screen through a pin header, and is electrically connected with the external power supply circuit and the signal control circuit;
the external power supply circuit is respectively electrically connected with the display screen and the signal control circuit.
6. A dehumidifying and heating system as claimed in claim 5, wherein said external power supply circuit comprises: the circuit comprises a rectifier bridge, a voltage reducer, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first voltage stabilizing diode, a second voltage stabilizing diode, a comparator, a first resistor, a second resistor, a first triode, a second triode and a relay; wherein the content of the first and second substances,
the positive electrode output end of the rectifier bridge is electrically connected with the input end of the voltage reducer, the negative electrode of the rectifier bridge is electrically connected with the negative electrodes of the first capacitor, the second capacitor, the third capacitor and the fourth capacitor, and the input end of the rectifier bridge is connected with an external power supply;
the output end of the voltage reducer is electrically connected with the anode of the first capacitor, and the input ends of the first voltage stabilizing diode and the second voltage stabilizing diode are electrically connected;
the output end of the first voltage-stabilizing diode is electrically connected with the base electrode of the first triode and the anode of the second capacitor;
the second voltage stabilizing diode is electrically connected with a positive phase input end of the comparator, is electrically connected with an inverted phase input end of the comparator through the first resistor, and is electrically connected with a collector electrode of the second triode through the second resistor;
the output end of the comparator is electrically connected with the control end of the relay;
an emitting electrode of the second triode is electrically connected with the input end of the relay and the positive electrode of the fourth capacitor, and a base electrode of the second triode is electrically connected with a collector electrode of the first triode;
and the emitter of the first triode is electrically connected with the anode of the third capacitor.
7. A dehumidifying and heating system as claimed in claim 5, wherein said signal control circuit comprises: the third resistor, the fourth resistor, the fifth resistor, the sixth resistor, the seventh resistor, the eighth resistor, the ninth resistor, the tenth resistor, the third triode, the fourth triode, the fifth triode, the sixth triode, the seventh triode, the fifth capacitor, the third voltage stabilizing diode, the relay switch and the rheostat; wherein the content of the first and second substances,
the output end of the relay switch is electrically connected with the input end of the rheostat;
the third resistor is electrically connected with the base electrode of the third triode, the collector electrode of the third triode is electrically connected with the first control end of the rheostat through a seventh resistor, and the emitter electrode of the third triode is electrically connected with the input end of the relay switch;
the fourth resistor is electrically connected with the base electrode of the fourth triode, the collector electrode of the fourth triode is electrically connected with the second control end of the rheostat through an eighth resistor, and the emitter electrode of the fourth triode is electrically connected with the input end of the relay switch;
the fifth resistor is electrically connected with the base electrode of the fifth triode, the collector electrode of the fifth triode is electrically connected with the third control end of the rheostat, and the emitter electrode of the fifth resistor is electrically connected with the input end of the relay switch;
the sixth resistor is electrically connected with the base electrode of the sixth triode, the collector electrode of the sixth triode is electrically connected with the fourth control end of the rheostat, the emitter electrode of the sixth triode is electrically connected with the base electrode of the seventh triode, and the emitter electrode of the sixth triode is also electrically connected with the emitter electrode of the seventh triode through a tenth resistor;
and the collector electrode of the seventh triode is electrically connected with the positive electrode of the fifth capacitor, the ninth resistor is electrically connected with the relay switch and the input end of the third voltage stabilizing diode, the output end of the third voltage stabilizing diode is electrically connected with the input end of the relay switch, and the emission set of the seventh triode is electrically connected with the negative electrode of the fifth capacitor.
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| CN202020272336.4U CN212216132U (en) | 2020-03-09 | 2020-03-09 | Dehumidification heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902570A (en) * | 2021-01-22 | 2021-06-04 | 机械工业第九设计研究院有限公司 | Intelligent energy-saving emission-reducing system of drying furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902570A (en) * | 2021-01-22 | 2021-06-04 | 机械工业第九设计研究院有限公司 | Intelligent energy-saving emission-reducing system of drying furnace |
| CN112902570B (en) * | 2021-01-22 | 2023-03-28 | 机械工业第九设计研究院股份有限公司 | Intelligent energy-saving and emission-reducing system of drying furnace |
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