CN211377289U - Condensation device is prevented to humiture adjustable outdoor terminal box high performance - Google Patents
Condensation device is prevented to humiture adjustable outdoor terminal box high performance Download PDFInfo
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- CN211377289U CN211377289U CN201922394665.6U CN201922394665U CN211377289U CN 211377289 U CN211377289 U CN 211377289U CN 201922394665 U CN201922394665 U CN 201922394665U CN 211377289 U CN211377289 U CN 211377289U
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Abstract
The utility model relates to a condensation device is prevented to humiture adjustable outdoor terminal box high performance, including the controller, the heater of outdoor temperature and humidity controller, light control relay, terminal incasement air humidity, temperature detection control relay, terminal case and intake valve, dehydrating unit and the band-pass controller that are connected with the controller. The utility model discloses the device detection volume is many, and ambient condition judges comprehensively, has set up outdoor atmospheric control ware, light control relay, terminal incasement air humidity, temperature detection control relay, can control through a plurality of parameters, and above-mentioned multiple means combines together, makes outdoor box prevent that dew control has reached the level of engineering requirement.
Description
Technical Field
The utility model relates to a prevent the condensation device, especially a condensation device is prevented to humiture adjustable outdoor terminal case high performance.
Background
The power plant, the transformer substation, the distribution station, the high-voltage alternating current and direct current transmission system are provided with a large number of terminal boxes such as outdoor circuit breakers, a control box, an operating mechanism box and the like. The method is characterized in that in an open environment, sometimes raining, sometimes low temperature, plugging is not tight, and the like, so that the interior of a terminal box, a control box, an operating mechanism and other boxes is condensed, a circuit breaker in operation is tripped, high-voltage direct-current transmission is locked, the voltage of a power grid fluctuates greatly, even power is dragged across, the power grid is cut off greatly, and serious loss is brought to life and property of people. Affecting the transportation of people, production and life.
At present, condensation control of outdoor terminal boxes, junction boxes and operating mechanism boxes of power systems, high-voltage alternating-current and direct-current power transmission, power plants, transformer substations, power distribution stations, power supply stations and the like is very difficult, and in order to prevent the condensation level in the outdoor box, improvement needs to be made on an anti-condensation device in the accident event of tripping of a high-voltage high-power transmission direct-current switch and a high-voltage high-power alternating-current power transmission switch caused by condensation in multiple boxes of power generation and power systems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a condensation device is prevented to humiture adjustable outdoor terminal box high performance, the device detected volume is many, and ambient condition judges comprehensively, and multiple means combines together, makes outdoor box prevent that dew control has reached the level of engineering requirement.
The technical scheme of the utility model is specifically as follows:
the utility model provides a condensation device is prevented to humiture adjustable outdoor terminal box high performance, includes the controller, the outdoor temperature and humidity controller that is connected with the controller, light control relay, terminal incasement air humidity, temperature detection control relay, terminal case's exhaust valve and air inlet valve, dehydrating unit and the heater of taking the power controller.
Furthermore, the outdoor temperature and humidity controller, the light control relay and the terminal box internal air humidity and temperature detection control relay are all connected with the power supply in parallel, and the terminal box internal air humidity detection control relay, the light control relay, the outdoor temperature and humidity controller and the light control relay are connected with one another in series.
Furthermore, the air humidity in the terminal box detects and controls the relay switch to be connected with a power supply, one end of the outdoor temperature controller switch is connected with the time relay, the other end of the outdoor temperature controller switch is connected with the base of the triode BG through a resistor, the emitting electrode of the triode BG is connected with the positive electrode of the power supply, the collecting electrode of the triode BG is connected with one end of the relay coil, and the other end of the time relay is connected with the negative electrode of the power supply.
And furthermore, the left sides of a first point and a second point of the time relay are respectively connected with the anode of a power supply, wherein the first point controls an exhaust valve and an air inlet valve of the terminal box, the second point controls the ventilation fan, after the first point is closed, the exhaust valve and the air inlet valve are opened, the second point is delayed for 30S to be closed, and the exhaust fan and the air inlet fan are opened.
Furthermore, one end of the switch is connected with the positive electrode of the power supply, and the other end of the switch is respectively connected with the two air temperature detection control relays.
Furthermore, the positive pole of the temperature transmitter in the box is connected with the positive pole of the power supply, and the negative pole of the temperature transmitter in the box is connected with the heating power regulator.
Further, the heater includes 2 groups of heating element that connect in parallel each other, and every group heating element includes heating power regulator, and heating power regulator is connected with heater one end, and heater one end is connected with switch temperature relay, and 40 ℃ temperature disconnection relay, 50 ℃ temperature disconnection relay are connected with the heater.
Further, the heating power regulators of the 2 groups of heating assemblies are connected to each other.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses the inspection volume is many, and ambient condition judges comprehensively, has set up outdoor atmospheric control ware, light control relay, terminal incasement air humidity, temperature detection control relay, can control through a plurality of parameters.
When the terminal box has high humidity and good outdoor air quality, the SJ1-1 is that an exhaust valve PFF and an intake valve JFF of the terminal box are opened, and SJ1-2 delays for 30S to close, namely, the ventilation fan is started after the PFF and the JFF are opened.
When the humidity in the terminal box is high and the outdoor air quality is poor, the HPD loop of the outdoor air temperature and greenhouse temperature judging device is disconnected, the triode BG is conducted, and the J0 is electrified.
When the humidity in the terminal box is higher than 50%, J0 is closed, and when the temperature in the terminal box is lower than 17 ℃, the semiconductor dehumidifying device is started to perform dehumidification preferentially. When the temperature in the terminal box is lower than 10 ℃, heating is started at the same time when the semiconductor dehumidifying device is started for dehumidifying.
The heating power of the heater is increased along with the temperature drop in the terminal box, and the power adjusting controllers (TGQ 1, TGQ 2) of the heater are opened from the zero crossing point and closed at the zero crossing point, so that high-frequency electromagnetic interference can not be generated.
The fan is additionally provided with a temperature control starting device, so that the service life of the fan can be greatly prolonged, and the over-temperature of the heater when the fan fails is prevented.
The above multiple means are combined together, so that the outdoor box body anti-dew control reaches the level of engineering requirements.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some examples of the present invention, not all examples. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1, the high-performance condensation-preventing device for an outdoor terminal box with adjustable temperature and humidity in this embodiment is applied to power plants, power systems, power transformation and distribution systems and other related technical fields relating to terminal boxes, control cabinets, operating mechanism cabinets and the like of electrical control loops based on a single chip microcomputer and power regulation control.
The device comprises the following components: the singlechip is a digital temperature and humidity relay; an environmental condition judgment loop HPD; an air inlet valve and an air outlet valve; air intake and exhaust fans; time relay SJ 1; a PNP triode; an intermediate relay J0; a temperature transmitter WB; and a controller for increasing the heating power with the temperature decrease.
The device also comprises a controller, an outdoor temperature and humidity controller, a light control relay, a terminal box internal air humidity and temperature detection control relay, an exhaust valve and an intake valve of the terminal box, a dehumidifying device and a heater with a power controller, wherein the outdoor temperature and humidity controller, the light control relay and the terminal box internal air humidity and temperature detection control relay are connected with the controller.
The outdoor temperature and humidity controller, the light control relay, the terminal box internal air humidity and temperature detection control relay are all connected with the power supply in parallel, and the terminal box internal air humidity detection control relay, the light control relay, the outdoor temperature and humidity controller and the light control relay are connected in series. The terminal incasement air humidity detects control relay switch and is connected with the power, and outdoor greenhouse degree controller switch one end is connected with time relay SJ1, and the other end passes through resistance R1 and is connected with triode BG's base, and triode BG projecting pole positive power is connected, and the BG collecting electrode is connected with switch J0. The left sides of a first point SJ1-1 and a second point SJ-2 of the time relay are respectively connected with a power supply, wherein an SJ1-1 controls a terminal box exhaust valve PFF and an intake valve JFF, SJ1-2 controls a ventilation fan, and when SJ1-1 is closed, SJ1-2 delays for 30S to be closed. The relay coil J21 and the relay coil J22 are connected to the left side and the right side of the J0 relay contact. The positive terminal of the terminal box temperature transmitter WB is connected to the positive power supply, and the negative terminal is connected to the heater controller TGQ 1. The heater includes 2 group's heating element that connect in parallel each other, and each group heating element includes that heater power regulator TGQ1, TGQ1 are connected with JRQ1 one end, and JRQ1 one end is connected with switch WJ21, and fan WKJ40, WKJ50 are connected with JRQ 1. TGQ1 of the 2 groups of heating assemblies are connected with each other.
The single-chip microcomputer digital outdoor air humidity and greenhouse temperature controller JRH1+ WJ1 receives digital sensor data. The light control relay JG acts when detecting the sunny day with sunlight, and the normally open contact is closed. The air humidity detection control relay in the terminal box is a singlechip digital type terminal box air humidity detection control relay RH 2. And the air temperature in the terminal box detects and controls the relay. The air temperature detection control relay in the terminal box is a singlechip digital type terminal box air temperature detection control relay WJ21+ WJ 22.
Controlling by a controller:
when the terminal box has high humidity and good outdoor air quality, the terminal box has two joints, SJ1 is SJ1-1 is to open the exhaust valve PFF and the intake valve JFF of the terminal box, SJ1-2 delays 30S to close, namely, the ventilation fan is started after PFF and JFF are opened.
When the terminal box is high in humidity and poor in outdoor air quality, the HPD loop is disconnected, the triode BG is conducted, and the J0 is electrified (the terminal box prevents condensation and does not adopt a scheme of converting air inside and outside the terminal box).
And J0 is closed (the humidity in the terminal box is higher than 50%), and when the temperature in the terminal box is lower than 17 ℃, the semiconductor dehumidifying device is started to perform dehumidification preferentially.
J0 is closed (the humidity in the terminal box is higher than 50%), and when the temperature in the terminal box is lower than 10 ℃, the semiconductor dehumidifying device is started to dehumidify and simultaneously the heating is started.
The heater consists of 2 groups of large-area and low-temperature heating components, each group has power of 300W, and the heating power is increased along with the temperature reduction in the terminal box. From 12 ℃ to 2 ℃, the power is increased by 30W when the power temperature of the heater is reduced by 1 ℃.
And starting the first group of cooling fans when the surface temperature of the heater is 40 ℃, and starting the second group of cooling fans when the surface temperature of the heater is 50 ℃.
The power regulating controller of the heater is opened from the zero crossing point and closed at the zero crossing point, so that high-frequency electromagnetic interference cannot be generated.
The fan is additionally provided with a temperature control starting device, when the heating temperature is higher than 40 ℃, the first group of fans are started, and when the heating temperature is higher than 50 ℃, the second group of fans are started, so that the service life of the fan can be greatly prolonged. When the temperature is higher than 65 ℃, the heater stops working, and the over-temperature of the heater when the fan fails is prevented.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a condensation device is prevented to humiture adjustable outdoor terminal case high performance, its characterized in that: the device comprises a controller, an outdoor temperature and humidity controller, a light control relay, a terminal box internal air humidity and temperature detection control relay, an exhaust valve and an air inlet valve of the terminal box, a dehumidifying device and a heater with a power controller, wherein the outdoor temperature and humidity controller, the light control relay and the terminal box internal air humidity and temperature detection control relay are connected with the controller.
2. The outdoor terminal box high-performance condensation preventing device with adjustable temperature and humidity of claim 1, which is characterized in that: the outdoor temperature and humidity controller, the light control relay, the terminal box internal air humidity and temperature detection control relay are all connected with the power supply in parallel, and the terminal box internal air humidity detection control relay, the light control relay, the outdoor temperature and humidity controller and the light control relay are connected in series.
3. The outdoor terminal box high-performance condensation preventing device with the adjustable temperature and humidity of claim 2, which is characterized in that: the terminal incasement air humidity detects control relay switch and is connected with the power, and outdoor greenhouse degree controller switch one end is connected with time relay, and the other end passes through resistance and is connected with triode BG's base, and triode BG's projecting pole is connected with the positive pole of power, and the collecting electrode is connected with relay coil's one end, and time relay's the other end is connected with the power negative pole.
4. The outdoor terminal box high-performance condensation preventing device with the adjustable temperature and humidity of claim 2, which is characterized in that: the left sides of a first point and a second point of the time relay are respectively connected with the positive pole of a power supply, wherein the first point controls an exhaust valve and an air inlet valve of the terminal box, the second point controls the ventilation fan, after the first point is closed, the exhaust valve and the air inlet valve are opened, the second point is delayed for 30S and closed, and the exhaust fan and the air inlet fan are opened.
5. The outdoor terminal box high-performance condensation preventing device with adjustable temperature and humidity of claim 3, characterized in that: one end of the switch is connected with the positive electrode of the power supply, and the other end of the switch is respectively connected with the two air temperature detection control relays.
6. The outdoor terminal box high-performance condensation preventing device with the adjustable temperature and humidity of claim 2, which is characterized in that: the positive pole of the temperature transmitter in the box is connected with the positive pole of the power supply, and the negative pole of the temperature transmitter in the box is connected with the heating power regulator.
7. The outdoor terminal box high-performance condensation preventing device with the adjustable temperature and humidity of claim 6, wherein: the heater includes 2 groups of heating element that connect in parallel each other, and every group heating element includes heating power regulator, and heating power regulator is connected with heater one end, and heater one end is connected with switch temperature relay, and 40 ℃ temperature disconnection relay, 50 ℃ temperature disconnection relay are connected with the heater.
8. The outdoor terminal box high-performance condensation preventing device with adjustable temperature and humidity of claim 7, characterized in that: the heating power regulators of the 2 groups of heating assemblies are connected with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922394665.6U CN211377289U (en) | 2019-12-27 | 2019-12-27 | Condensation device is prevented to humiture adjustable outdoor terminal box high performance |
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| CN201922394665.6U CN211377289U (en) | 2019-12-27 | 2019-12-27 | Condensation device is prevented to humiture adjustable outdoor terminal box high performance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327976A (en) * | 2020-11-04 | 2021-02-05 | 国网山东省电力公司建设公司 | Outdoor terminal box temperature and humidity control device and method |
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2019
- 2019-12-27 CN CN201922394665.6U patent/CN211377289U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327976A (en) * | 2020-11-04 | 2021-02-05 | 国网山东省电力公司建设公司 | Outdoor terminal box temperature and humidity control device and method |
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