CN203859409U - Power distribution terminal dehumidifying device - Google Patents

Abstract

The utility model relates to a distribution network terminal dehumidification device, which includes a shell, a semiconductor condenser, a humidity acquisition controller, a humidity sensor, a condensate drainage device, an air outlet, an amplifier and a power supply, etc. Moisture condensation, the humidity acquisition controller is connected with the humidity sensor and the semiconductor condenser, the humidity sensor is connected with the humidity acquisition controller, the humidity sensor transmits the value of the humidity in the air to the humidity acquisition controller, and the water drainage device is connected with the humidity acquisition controller. The semiconductor condenser is connected to discharge the condensed water in the semiconductor condenser; the air outlet is set on the casing, the amplifier is installed between the humidity sensor and the humidity acquisition controller, and the signal collected by the humidity sensor is amplified and sent to the humidity acquisition control The power supply supplies power to the entire distribution network terminal dehumidification device. The utility model has no mechanical moving parts, no vibration and noise when working, and no refrigerant or desiccant.

Description

Distribution network terminal dehumidification device

technical field

The utility model belongs to the field of refrigeration and dehumidification, in particular to a distribution network terminal dehumidification device with small volume, high stability and no need for refrigerant and desiccant.

Background technique

Power production equipment is the vitality of every enterprise and the core of life. It is also the main tool for enterprises to create profits. Today's industrial production processes are increasingly automated. Environmental temperature and humidity are an important factor affecting the normal operation of electrical equipment. If the ambient temperature and humidity are too high, the temperature rise of electrical equipment will also increase, causing the insulation to age faster, and in severe cases, the insulation will be burned. If the air humidity is too high, moisture will condense on the surface of the equipment, which will accelerate the growth of mold, reduce the strength of electrical insulation, accelerate metal corrosion, lead to oxidation of the contact surface, and increase the contact resistance. A small fault may cause a large-scale production stoppage, so how to ensure the efficient and safe operation of production equipment is particularly important. In fact, in many indoor and outdoor electrical equipment, air humidity and how to solve the problem of dehumidification in the equipment are often neglected. When the equipment is running for a period of time, due to the influence of high humidity, the equipment will have various problems. Because the influence of humidity is a chronic process, it is generally not dealt with in time, and the maintenance is not organized until the equipment is completely unable to operate. On the one hand, this increases the difficulty and intensity of maintenance, affects production and increases maintenance costs, and may cause major safety accidents. Therefore, it is particularly important to ensure that electrical equipment operates in a reasonable temperature and humidity environment.

At present, the ring network cabinet generally adopts the automatic heating method to dehumidify the cabinet, uses the heating plate to heat the air in the cabinet, and then circulates the hot air in the cabinet through the fan, evaporates the moisture in the air, and achieves the purpose of anti-condensation; Once the temperature drops, it will condense into condensation and attach to the surface of the electrical components in the cabinet. This method generally has a large power, and it only temporarily prevents condensation from occurring, and cannot really achieve the dehumidification effect;

Air conditioner dehumidification achieves the effect of dehumidification through condensation. However, due to its large size, it is mainly used for dehumidification in the station space, and is not suitable for installation in narrow ring network cabinets.

Utility model content

In view of the above problems, the main purpose of this utility model is to provide a distribution network terminal dehumidification device with small size, high stability and no need for refrigerant and desiccant.

The utility model solves the above-mentioned technical problems through the following technical solutions: a distribution network terminal dehumidification device, the distribution network terminal dehumidification device includes a housing, and the following components are installed in the housing:

Semiconductor condenser: the semiconductor condenser condenses the moisture in the surrounding air;

Humidity acquisition controller: the humidity acquisition controller is connected with the humidity sensor and the semiconductor condenser;

Humidity sensor: the humidity sensor is connected with the humidity acquisition controller, and the humidity sensor transmits the value of the humidity in the air to the humidity acquisition controller;

Condensed water drainage device: the condensed water drainage device is connected to the semiconductor condenser to discharge the condensed water in the semiconductor condenser;

Air exhaust port: the air exhaust port includes several air outlets, all of which are arranged on the shell;

Amplifier: the amplifier is installed between the humidity sensor and the humidity acquisition controller, amplifies the signal collected by the humidity sensor and transmits it to the humidity acquisition controller.

Power supply: the power supply supplies power to the entire distribution network terminal dehumidification device.

In a preferred implementation example of the present utility model, an exhaust device for air circulation is installed in the distribution network terminal dehumidification device.

In a preferred implementation example of the present utility model, the exhaust device is installed near the exhaust outlet.

In a preferred implementation example of the present utility model, the exhaust device is a fan, and the fan is installed on the casing.

In a preferred implementation example of the present invention, the condensed water drainage device is installed at the bottom of the distribution network terminal dehumidification device.

In a preferred implementation example of the present utility model, a heat dissipation device is provided on the distribution network terminal dehumidification device.

In a preferred implementation example of the present utility model, the condensed water drainage device is connected with a condensed water tank through a pipeline.

The positive progress effect of the utility model is that the distribution network terminal dehumidification device provided by the utility model has the following advantages: compared with the traditional dehumidification device, the semiconductor cooling dehumidification device of the utility model has no mechanical moving parts, and there is no vibration, noise. Therefore, it does not need frequent maintenance, and the equipment is small, light in weight, long in life and easy to install; it does not need any refrigerant and can work continuously. The semiconductor cooling dehumidifier does not use refrigerant or desiccant, so it does not need frequent replenishment, and does not use CFC and other substances that are conducive to the greenhouse effect, which can protect the environment; the temperature control of the semiconductor cooling dehumidifier can be accurate to ± 0.1°C; the semiconductor cooling dehumidifier can work in harsh, sensitive or small environments, and does not have too many requirements for the environment, and at the same time, it does not have too many requirements for the location.

Description of drawings

Figure 1 is a schematic diagram of the working principle of the semiconductor condensation dehumidification device.

Fig. 2 is a schematic structural diagram of a semiconductor condensation dehumidification device.

Detailed ways

The preferred embodiments of the utility model are given below in conjunction with the accompanying drawings to describe the technical solution of the utility model in detail.

Figure 1 is a working principle diagram of a semiconductor condensation dehumidification device. The semiconductor condensation dehumidification is based on the principle of thermoelectric refrigeration, mainly the Seebeck effect and the Peltier effect. The Seebeck effect refers to a phenomenon in which thermal energy is converted into electrical energy through two types of semiconductors, N-type and P-type. The Peltier effect is the opposite, a phenomenon that converts electrical energy into heat. Therefore, the key role in thermoelectric condensation dehumidification is the Peltier effect. Dehumidification is realized by direct current through one or more pairs of N-type and P-type semiconductors. The figure below is a cooling model of a single thermoelectric pair. In cooling mode, direct current flows from N-type semiconductors to P-type semiconductors. The temperature of the cold end of the thermoelectric pair decreases and heat is absorbed from the environment. When electrons flow from the low-energy end of the P-type semiconductor to the high-energy end of the N-type semiconductor through interconnected conductors, heat will be absorbed from the environment. Then heat is transferred to the other end by electron conduction, and heat is released when the electrons return to the low-energy end of the P-type conductor. Multiple thermoelectric pairs are connected together to form a thermoelectric device.

The semiconductor cooling dehumidification device uses semiconductor thermoelectric elements, which generate cold and heat effects at a certain voltage, and form airflow in the sealed space through the fan, condensing the air water molecules around the condenser plate, and the air temperature of the condenser plate drops to zero. The water molecules in the air condense, are collected by the collecting funnel and discharged to the outside of the sealed space, so that the uninterrupted work can achieve the purpose of reducing the humidity of the internal space of the electrical equipment.

Fig. 2 is a structural schematic diagram of a semiconductor condensation dehumidification device, as shown in Fig. 2: the utility model includes a semiconductor condenser 6, a humidity acquisition controller 1, a humidity sensor 3, a condensate drainage device 7, an air outlet 4, an amplifier 2 and power supply5.

The semiconductor condenser 6 condenses the moisture in the surrounding air, the humidity acquisition controller 1 is connected with the humidity sensor 3 and the semiconductor condenser 6, the humidity sensor 3 is connected with the humidity acquisition controller 1, and the humidity sensor 3 condenses the humidity in the air. The value of the humidity is transmitted to the humidity acquisition controller 1, the condensed water drainage device 7 is connected to the semiconductor condenser 6, and the condensed water in the semiconductor condenser 6 is discharged, and the humidity acquisition controller 1 collects the internal humidity level of the electrical equipment to control the semiconductor condenser. Start and stop of condenser work.

In a specific implementation process, there are several air exhaust outlets 4, all of which are arranged on the casing 11, two of which are simply shown in FIG. 2 .

The amplifier 2 is installed between the humidity sensor 3 and the humidity acquisition controller 1 , amplifies the signal collected by the humidity sensor 3 and transmits it to the humidity acquisition controller 1 . The entire distribution network terminal dehumidification device is powered by the power supply 5 .

Because the utility model is generally installed in the switch cabinet, so generally the exhaust device of air circulation is installed in the utility model. Generally, for better circulation of air, the exhaust device is installed near the air outlet 4 . Generally, the exhaust device can be selected as a fan 10 with a relatively low price, and the fan 10 can generally be fixedly installed on the casing 11 .

In order to drain the condensed water better, the condensed water drainage device 7 is installed at the bottom of the distribution network terminal dehumidification device.

In order to ensure that the utility model works better and has a longer service life, a cooling device (not shown in the figure) can also be set on the utility model.

In order to discharge the condensed water better, the condensed water drainage device 7 is connected with a condensed water tank 9 through a pipeline 8 . The water in the condensation water tank 9 can be extracted out regularly by the staff.

The working process of the present utility model is: the humidity sensor 3 detects the air humidity in the switch cabinet, and sends the detected air humidity value d to the humidity controller 6, and the amplifier 3 connected with the humidity controller 6 compares the above-mentioned air humidity value d Compared with the preset humidity upper limit d1, if d>dl, then start the fan 10, driven by the fan 10, the humid air outside the shell 11 of the dehumidification device and inside the switch cabinet enters the shell 11 through the air inlet 4 Inside; when the humid air flows through the semiconductor condenser 6, the water vapor in it is condensed into water and is discharged from the switchgear by the condensate drainage device 7 and the pipeline 8, and the humid air becomes dry air after removing the water vapor, and further circulates in the fan Driven by 10, the shell 11 of the dehumidification device is discharged from the air outlet 4, thereby completing the dehumidification operation of the switch cabinet.

It can be seen from the above structure and working process that the embodiment of the present application controls the start and stop of the fan through the humidity sensor and the humidity controller. During the operation of the fan, humid air enters the device, and the water vapor in the humid air is condensed into water by the cooling element. , and then the switch cabinet is completely discharged from the condensed water conduit, which avoids the phenomenon of water circulation evaporation-condensation in the prior art, fundamentally removes the moisture in the switch cabinet, reduces the air humidity in the switch cabinet, and realizes the on-line dehumidification of the switch cabinet .

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model, and the claimed protection scope of the utility model is defined by the appended claims and their equivalents.

Claims (7)

1. a distribution network terminal dehydrating unit, described distribution network terminal dehydrating unit comprises shell, it is characterized in that: in described shell, be provided with as lower member:

Semiconductor cooling condenser: described semiconductor cooling condenser is by the condensate moisture in ambient air;

Humidity collection controller: described humidity collection controller is connected with semiconductor cooling condenser with humidity sensor;

Humidity sensor: described humidity sensor and humidity collection controller link together, and the value of the amount of airborne humidity is passed to humidity collection controller by described humidity sensor;

Solidifying water drainage arrangement: described solidifying water drainage arrangement is connected with semiconductor cooling condenser, discharges the condensed water in semiconductor cooling condenser;

Exhaust outlet: described exhaust outlet comprises several, is all arranged on shell;

Amplifier: described amplifier is arranged between humidity sensor and humidity collection controller, the signal that humidity sensor is collected is passed to humidity collection controller after amplifying;

Power supply: described power supply is given whole distribution network terminal dehydrating unit power supply.

2. distribution network terminal dehydrating unit according to claim 1, is characterized in that: the air exhausting device that circulation of air is installed in described distribution network terminal dehydrating unit.

3. distribution network terminal dehydrating unit according to claim 2, is characterized in that: described air exhausting device is arranged near exhaust outlet place.

4. according to the distribution network terminal dehydrating unit described in claim 2 or 3, it is characterized in that: described air exhausting device is fan, and described fan is arranged on shell.

5. distribution network terminal dehydrating unit according to claim 1, is characterized in that: described solidifying water drainage arrangement is arranged on the bottom of distribution network terminal dehydrating unit.

6. distribution network terminal dehydrating unit according to claim 1, is characterized in that: on described distribution network terminal dehydrating unit, be provided with radiating element.

7. distribution network terminal dehydrating unit according to claim 1, is characterized in that: described solidifying water drainage arrangement is connected with a solidifying water tank by pipeline.