阅读说明：本技术 防凝露装置及汇控箱 (Condensation preventing device and control box ) 是由 张海鹏 宁雪峰 芦大伟 陈鹏 于 2020-04-23 设计创作，主要内容包括：本发明涉及变电站安全技术领域,具体公开一种防凝露装置及汇控箱。本发明的防凝露装置包括设置在汇控箱的箱顶内壁的隔温组件,设置在汇控箱内的壁板的制冷组件,隔温组件用于隔绝箱顶外壁与箱顶内壁之间的热交换,制冷组件用于降低壁板的温度,以使汇控箱的壁板降温而凝结成露水。本发明的防凝露装置的结构组成简单,建设成本低,因在低温环境中制冷的能耗一般低于制热的能耗,也起到降低能耗的效果,能够减少箱顶冷凝的露水量,从而减少汇控箱的维修频率和延长汇控箱的使用寿命。(The invention relates to the technical field of transformer substation safety, and particularly discloses a condensation preventing device and a control box. The condensation preventing device comprises a temperature isolating assembly arranged on the inner wall of the box top of the control convergence box and a refrigerating assembly arranged on a wall plate in the control convergence box, wherein the temperature isolating assembly is used for isolating heat exchange between the outer wall of the box top and the inner wall of the box top, and the refrigerating assembly is used for reducing the temperature of the wall plate so as to enable the wall plate of the control convergence box to be cooled and condensed into dew. The condensation preventing device has simple structure and low construction cost, and has the effects of reducing energy consumption because the energy consumption of refrigeration is generally lower than that of heating in a low-temperature environment, and reducing the amount of condensed dew on the top of the control box, thereby reducing the maintenance frequency of the control box and prolonging the service life of the control box.)

1. The condensation preventing device is applied to a convergence control box and is characterized by comprising a temperature isolating assembly and a refrigerating assembly, wherein the temperature isolating assembly is arranged on the inner wall of the box top of the convergence control box, the refrigerating assembly is arranged on a wall plate in the convergence control box, the temperature isolating assembly is used for isolating heat exchange between the outer wall of the box top and the inner wall of the box top, and the refrigerating assembly is used for reducing the temperature of the wall plate so as to enable the wall plate of the convergence control box to be cooled and condensed into dew.

2. The condensation preventing device according to claim 1, further comprising a water absorbing assembly disposed at the bottom of the control box for absorbing the condensation of the wall plate and the condensation flowing to the bottom of the control box.

3. The anti-condensation device according to claim 2, wherein the water suction assembly comprises any one of a sponge and a suction pump.

4. The apparatus according to claim 2, wherein the wall plate of the collection box is provided with a flow guide structure for guiding dew condensed by the wall plate to the water absorption member.

5. The condensation preventing device according to claim 1, wherein a drain hole is formed at the bottom of the control box, and the drain hole has any one of a circular hole shape and a grid shape.

6. The condensation preventing apparatus as claimed in claim 1, wherein the thermal insulation assembly is provided with a diatom ooze board facing away from the roof, the diatom ooze board being configured to absorb water contacting the diatom ooze board.

7. The condensation preventing apparatus as claimed in claim 1, wherein the top of the control box is provided with at least two top plates, and the thermal insulation assembly is disposed between the two top plates.

8. The anti-condensation device according to claim 7, wherein the thermal insulation component comprises any one of a vacuum insulation panel, a foam and an aerogel.

9. The condensation preventing device according to claim 1, wherein a first temperature sensor is arranged on the outer wall of the top of the control box, a second temperature sensor is arranged on the inner wall of the top of the control box, the first temperature sensor and the second temperature sensor are respectively electrically connected with the refrigerating assembly, and the refrigerating assembly is started when a first temperature detected by the first temperature sensor is lower than a second temperature detected by the second temperature sensor.

10. A control box, comprising a control box body and the condensation preventing device as claimed in any one of claims 1 to 9, wherein the condensation preventing device is disposed in the control box body.

Technical Field

The invention relates to the technical field of transformer substation safety, in particular to an anti-condensation device and a control box.

Background

A control cubicle is generally provided in a substation to control the operation of the transformer. The control assembly in the control box can emit heat when in normal operation, so that the temperature in the box body is higher than the temperature outside the box body, and the lower the temperature is, the lower the water vapor amount which can be contained in the unit volume of air is, namely, the lower the saturation humidity of the air is. When the air humidity exceeds the saturation humidity, the excess water vapor will condense into water droplets. When temperature suddenly dropped, the difference in temperature was great outside the incasement of collection accuse case, and the roof contact cold air cools down rapidly, produced the fog of congealing easily and condensed into dew even, and dew can converge and drip on the control assembly, influences the insulating nature of control assembly, brings the risk of short circuit.

At present, a heating device is generally arranged in the control box to resist sudden temperature drop by heating air in the box body. However, the heating device is generally arranged at the bottom of the box body, and the heating device has a small heat radiation range, cannot directly radiate to the top of the box body, and has poor condensation prevention effect. If the heating device is laid on the top of the box body, wires and fixing assemblies need to be added, so that the construction cost is increased, the heat radiation range of the heating device is small, and a plurality of heating devices need to be laid in order to prevent condensation on the top; if still lay heating device at the box bottom of the case, in order to improve heat radiation effect, need increase heating device's heating power to make the heat can radiate the box top, can improve the heating energy consumption on the one hand, control assembly in the on the other hand box also can receive huge heat radiation, causes control assembly's damage, influences the life of collection accuse case.

Disclosure of Invention

It is an object of an embodiment of the present invention to provide a condensation preventing device which is low in cost and high in condensation preventing capability.

Another object of the embodiments of the present invention is to provide a control box, which has high condensation resistance and long service life.

To achieve the purpose, the embodiment of the invention adopts the following technical scheme:

in a first aspect, the condensation preventing device comprises a temperature isolating assembly arranged on the inner wall of the top of the control box and a refrigerating assembly arranged on a wall plate in the control box, wherein the temperature isolating assembly is used for isolating heat exchange between the outer wall of the top of the box and the inner wall of the top of the box, and the refrigerating assembly is used for reducing the temperature of the wall plate so as to cool the wall plate of the control box and condense the wall plate into dew.

The condensation preventing device further comprises a water absorbing assembly arranged at the bottom of the control box, and the water absorbing assembly is used for absorbing the condensation of the wall plate and the condensation of the wall plate to the bottom of the control box.

As a preferable mode of the anti-condensation device, the water suction assembly includes any one of a sponge and a suction pump.

As a preferable aspect of the condensation preventing device, the wall plate of the junction box is provided with a flow guiding structure for guiding the condensed dew of the wall plate to the water absorbing assembly.

As a preferable scheme of the anti-condensation device, a drain hole is formed in the bottom of the control box and comprises any one of a circular hole shape and a grid shape.

As a preferable scheme of the anti-condensation device, a diatomite plate is arranged in the direction of the heat insulation assembly departing from the box top, and is used for absorbing water contacting with the diatomite plate.

As a preferable scheme of the condensation preventing device, at least two top plates are arranged on the top of the control box, and the heat insulation assembly is arranged between the two top plates.

As a preferable mode of the anti-condensation device, the thermal insulation member includes any one of a vacuum insulation panel, a foam and an aerogel.

As a preferable scheme of the anti-condensation device, a first temperature sensor is arranged on the outer wall of the top of the control box, a second temperature sensor is arranged on the inner wall of the top of the control box, the first temperature sensor and the second temperature sensor are respectively electrically connected with the refrigeration assembly, and the refrigeration assembly is started when a first temperature detected by the first temperature sensor is lower than a second temperature detected by the second temperature sensor.

In a second aspect, a control box is provided, which comprises a control box body and the anti-condensation device, wherein the anti-condensation device is arranged in the control box body.

The embodiment of the invention has the beneficial effects that:

through set up in the collection accuse incasement and separate temperature subassembly and refrigeration subassembly and form and prevent the condensation device, separate the temperature subassembly and set up at the roof inner wall of collection accuse case, can completely cut off the heat exchange between the roof outer wall of collection accuse case and the roof inner wall, when the air temperature dip, can slow down the roof inner wall and the outer wall difference in temperature increase process of collection accuse case, and then reduce the volume that the roof inner wall condenses out dew. In addition, refrigeration assembly sets up on the wallboard of converging the accuse incasement, can reduce the temperature of the inside wallboard of control box, can reduce the inside and outside difference in temperature of control box on the one hand, and on the other hand makes the wallboard condense into dew earlier because of cooling down rapidly, and reduces the humidity of converging the incasement portion, avoids warm humid air to reach the roof inner wall to further reduce the dew volume of roof condensation, play the effect of protection and converge the control assembly in the accuse incasement. The condensation preventing device provided by the embodiment of the invention has the advantages that the structure composition is simple, the construction cost is low, the energy consumption for refrigeration in a low-temperature environment is generally lower than that for heating, the effect of reducing the energy consumption is also achieved, the amount of condensed dew on the top of the control box can be reduced, the maintenance frequency of the control box is reduced, and the service life of the control box is prolonged.

Drawings

The invention is explained in more detail below with reference to the figures and examples.

Fig. 1 is a schematic cross-sectional view of an anti-condensation device according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of an anti-condensation device according to another embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a control box according to an embodiment of the present invention.

In the figure:

1. an anti-condensation device; 11. a thermal insulation assembly; 12. a refrigeration assembly; 13. a water absorbing assembly; 14. a flow guide structure; 15. a diatom ooze board; 16. a first temperature sensor; 17. a second temperature sensor;

2. a control box; 21. a box top; 211. a top plate; 22. wall plates; 23. the box bottom; 231. a drain hole; 24. and a control component.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, an embodiment of the present invention provides a condensation preventing device 1, which is applied to a control box 2, and includes a thermal insulation assembly 11 disposed on an inner wall of a box top 21 of the control box 2, and a refrigeration assembly 12 disposed on a wall plate 22 inside the control box 2, where the thermal insulation assembly 11 is used to insulate heat exchange between an outer wall of the box top 21 and an inner wall of the box top 21, and the refrigeration assembly 12 is used to reduce a temperature of the wall plate 22, so that the wall plate 22 of the control box 2 is cooled and condensed into dew.

According to the embodiment of the invention, the condensation preventing device 1 is formed by arranging the heat insulation component 11 and the refrigerating component 12 in the control convergence box 2, the heat insulation component 11 is arranged on the inner wall of the box top 21 of the control convergence box 2, so that heat exchange between the outer wall of the box top 21 of the control convergence box 2 and the inner wall of the box top 21 can be insulated, the temperature difference increasing process of the inner wall and the outer wall of the box top 21 of the control convergence box 2 can be slowed down when the air temperature suddenly drops, and the amount of condensation dew on the inner wall of the box top 21 is further reduced. In addition, refrigeration component 12 sets up on the wallboard 22 in the collection accuse case 2, can reduce the temperature of the inside wallboard 22 of collection accuse case 2 box, can reduce the inside and outside difference in temperature of collection accuse case 2 on the one hand, on the other hand makes wallboard 22 condense into dew earlier because of cooling down rapidly, and reduces the inside humidity of collection accuse case 2, avoid warm humid air stream to reach roof 21 inner wall, thereby further reduce the dew amount of roof 21 condensation, play the effect of the interior control component 24 of protection collection accuse case 2. The condensation preventing device 1 provided by the embodiment of the invention has the advantages that the structure composition is simple, the construction cost is low, the energy consumption of refrigeration in a low-temperature environment is generally lower than that of heating, the effect of reducing the energy consumption is achieved, the amount of condensed dew water on the box top 21 can be reduced, the maintenance frequency of the control box 2 is reduced, and the service life of the control box 2 is prolonged.

In one embodiment, referring to fig. 1, the condensation preventing device 1 further comprises a water absorption assembly 13 disposed at the bottom 23 of the junction box 2, wherein the water absorption assembly 13 is used for absorbing dew condensed by the wall plate 22 and converged to the bottom 23 of the junction box 2.

Further, the water absorbing assembly 13 includes any one of a sponge and a water pump, and dew converged to the bottom 23 of the junction box 2 can be absorbed by using the good water absorption of the sponge, and dew converged to the bottom 23 of the junction box 2 can be collected by using the water pump.

In another embodiment, referring to fig. 2, the wall plate 22 of the collection and control box 2 is provided with the diversion structure 14, and the diversion structure 14 is used for guiding dew condensed by the wall plate 22 to the water absorption assembly 13, so that on one hand, the water absorption efficiency of the water absorption assembly 13 can be improved, and on the other hand, the dew can be prevented from wetting the box bottom 23 and contacting the control assembly 24.

Preferably, the bottom 23 of the control box 2 is provided with a drainage hole 231, and the drainage hole 231 includes any one of a circular hole shape and a grid shape. The circular or grid-shaped drain holes 231 can prevent animals from entering and also drain accumulated water.

In particular, referring to FIG. 2, the thermal insulation assembly 11 is provided with a diatomite plate 15 oriented away from the roof 21, the diatomite plate 15 being configured to absorb water that contacts the diatomite plate 15. The main raw material of diatom ooze is diatomite, a diatom mineral formed in millions of years, and diatom is algae living in oceans and lakes. The diatom ooze is a natural substance formed by depositing diatoms, which are aquatic plankton organisms living millions of years ago, the diatom ooze mainly comprises opals, is rich in various beneficial mineral substances and has light and soft texture, an electron microscope shows that countless tiny holes are formed in the particle surface, the porosity reaches over 90 percent, and the specific surface area reaches up to 65 square meters per gram. Due to the outstanding molecular sieve structure, the diatomite plate 15 has extremely strong physical adsorption performance and ion exchange performance and can absorb a large amount of water.

In another embodiment, referring to fig. 1, the roof 21 of the control cubicle 2 is provided with at least two top plates 211, and the thermal insulation assembly 11 is disposed between the two top plates 211, so as to avoid direct heat exchange between the top plate 211 close to the control assembly 24 and the external environment of the control cubicle 2, and further reduce the amount of dew condensed on the inner wall of the roof 21.

Preferably, the insulation assembly 11 includes any one of a vacuum insulation panel, a foam, and an aerogel. The vacuum heat insulation plate is formed by compounding a filling core material and a vacuum protection surface layer, and effectively avoids heat transfer caused by air convection; the foamed plastic is a high polymer material formed by dispersing a large number of gas micropores in solid plastic, and has the characteristics of light weight, heat insulation, sound absorption, shock absorption and the like; aerogel, also called xerogel, is a kind of aerogel when most of the solvent is removed from the gel, so that the liquid content in the gel is much less than the solid content, or the space network structure of the gel is filled with gas, and the appearance is solid. As more than 80% of the aerogel is air, the heat insulation effect is better.

In one embodiment, referring to fig. 2, the outer wall of the roof 21 of the control box 2 is provided with a first temperature sensor 16, the inner wall of the roof 21 of the control box 2 is provided with a second temperature sensor 17, the first temperature sensor 16 and the second temperature sensor 17 are respectively electrically connected to the refrigeration component 12, and the refrigeration component 12 is started when the first temperature detected by the first temperature sensor 16 is lower than the second temperature detected by the second temperature sensor 17. The refrigeration component 12 is started when the temperature difference exists between the inside and the outside of the box body of the control box 2, and the energy consumption of the condensation preventing device 1 can be reduced.

Referring to fig. 3, an embodiment of the present invention further provides a control box 2, which includes a control box 2 body, and the anti-condensation device 1 according to any one of the above embodiments, where the anti-condensation device 1 is disposed in the control box 2 body. The anti-condensation device 1 in this embodiment may have the same structure and achieve the same effect as the anti-condensation device 1 in the above embodiments, and the description of this embodiment is omitted.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or a positional relationship based on the orientation shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.