CN-122025390-A - Heating and dehumidifying device

CN122025390ACN 122025390 ACN122025390 ACN 122025390ACN-122025390-A

Abstract

The application relates to the field of maintenance of electric equipment, in particular to a heating and dehumidifying device, which comprises at least two shell parts and a heating structure, wherein two ends of each shell part are respectively provided with an avoiding groove used for avoiding a cable, the at least two shell parts are detachably connected to form a separation state and an installation state, the heating structure is arranged on at least one shell part and is used for heating a processing space, in the installation state, the at least two shell parts are enclosed to form a processing space used for accommodating a current transformer, and the avoiding grooves of the shell parts are correspondingly enclosed to form two avoiding holes which are respectively communicated with two ends of the processing space. In the technical scheme of this embodiment, enclose the casing spare that closes through detachable connection and form the processing space and hold current transformer to set up heating structure and remove the tide, have and need not to dismantle the current transformer and can realize high-efficient the tide, reduce equipment off-stream time, reduce the advantage of operation risk and cost.

Inventors

MENG YULONG
ZHANG KUN
Mao Diao
SUN JIAPENG
LIU MENG
WANG XING
TAN ZHENG
QIU YUCAI
WANG XIAOLI

Assignees

三峡金沙江云川水电开发有限公司

Dates

Publication Date: 20260512
Application Date: 20260326

Claims (10)

1. A heating and dehumidifying apparatus, comprising: At least two shell parts, two ends of the shell parts are provided with avoiding grooves for avoiding cables, the two shell parts are detachably connected to have a separated state and an installation state, and A heating structure provided on at least one of the housing members for heating the processing space; In the installation state, the at least two shell parts enclose to form a processing space for accommodating the current transformer, and the avoidance grooves of the shell parts correspondingly enclose to form two avoidance holes which are respectively communicated with two ends of the processing space.
2. The heating and dehumidifying device as claimed in claim 1 wherein the heating structure comprises a plurality of electrical heating plates, each of the housing members having a plurality of the electrical heating plates disposed thereon.
3. The heating and moisture removal apparatus as set forth in claim 1 or 2, wherein said heating and moisture removal apparatus further comprises: At least one temperature sensor arranged on the inner side of the housing part, and And the controller is electrically connected with the temperature sensor and the heating structure so as to control the heating structure according to the feedback signal of the temperature sensor.
4. The heating and dehumidifying device as claimed in claim 1 wherein the heating and dehumidifying device further comprises a suction structure for sucking air from the process space in the installed state.
5. The heating and moisture removal apparatus as in claim 4, wherein said suction structure includes a suction valve disposed on one of said housing members, said suction valve being in communication with said process space for connection to an external suction pump.
6. The heating and moisture removal apparatus as in claim 4, wherein a first seal is disposed between the abutting surfaces of adjacent ones of said housing members.
7. The heating and moisture removal apparatus as set forth in claim 4, wherein a second seal is disposed within said relief groove; in the installed state, a plurality of corresponding second sealing elements can be enclosed to form a sealing ring for sealing a gap between the avoidance hole and a cable passing through the avoidance hole in the installed state.
8. The heating and dehumidifying device as claimed in claim 4 wherein the heating structure comprises a plurality of electrical heating plates disposed on the outside of the housing member; the shell is made of heat conducting materials.
9. The heating and dehumidifying device as claimed in claim 8, wherein a wiring groove is provided on the outer side of the housing member, the wiring groove being for accommodating a connection wire of the electric heating plate, and the wiring groove being filled with a heat insulating material.
10. The heating and moisture removal apparatus as set forth in claim 1, wherein adjacent ones of said housing members are detachably connected by bolts.

Description

Heating and dehumidifying device Technical Field The invention relates to the field of maintenance of power equipment, in particular to a heating and dehumidifying device. Background The sleeve type current transformer in the gas-insulated metal-enclosed transmission line is in an outdoor operation environment for a long time and is easily influenced by natural factors such as rainwater, moisture and the like, so that the moisture gradually permeates into an internal winding area. After the winding insulating material is wetted, the dielectric property of the winding insulating material is obviously deteriorated, and the faults of partial discharge, insulation breakdown and the like can be possibly caused, and equipment outage and even power grid safety accidents are caused when the faults are serious. The existing dehumidification mode mainly relies on external heating equipment to perform non-contact heating on the outer cover of the current transformer in an attempt to disperse internal moisture through thermal conduction. However, because the current transformer is installed in a narrow space, and wind power or low-temperature interference exists in the surrounding environment, the external heat source is difficult to realize heat transfer, so that the dehumidification process takes too long and has limited effect. If the current transformer is disassembled for offline treatment, power supply is required to be interrupted, complicated disassembly and assembly procedures, special tools and professionals are involved in operation, the construction period is prolonged, and secondary damage of equipment and personnel safety risks are increased. Disclosure of Invention The application provides a heating and dehumidifying device which has the advantages of realizing efficient dehumidification without dismantling a current transformer, reducing equipment outage time and reducing operation risk and cost. In a first aspect, an embodiment of the present application provides a heating and dehumidifying apparatus, including: At least two shell parts, two ends of the shell parts are provided with avoiding grooves for avoiding cables, the two shell parts are detachably connected to have a separated state and an installation state, and A heating structure provided on at least one of the housing members for heating the processing space; In the installation state, the at least two shell parts enclose to form a processing space for accommodating the current transformer, and the avoidance grooves of the shell parts correspondingly enclose to form two avoidance holes which are respectively communicated with two ends of the processing space. With reference to the first aspect, in one embodiment, the heating structure includes a plurality of electric heating plates, and a plurality of electric heating plates are disposed on each of the housing members. With reference to the first aspect, in an embodiment, the heating and dehumidifying apparatus further includes: At least one temperature sensor arranged on the inner side of the housing part, and And the controller is electrically connected with the temperature sensor and the heating structure so as to control the heating structure according to the feedback signal of the temperature sensor. With reference to the first aspect, in an embodiment, the heating and dehumidifying apparatus further includes a suction structure for sucking air from the processing space in the installed state. With reference to the first aspect, in one embodiment, the pumping structure includes a pumping valve disposed on one of the housing parts, and the pumping valve is in communication with the processing space for connecting an external pumping pump. With reference to the first aspect, in one embodiment, a first seal is provided between the abutting faces of two adjacent housing parts. With reference to the first aspect, in one embodiment, a second seal is disposed in the relief groove; in the installed state, a plurality of corresponding second sealing elements can be enclosed to form a sealing ring for sealing a gap between the avoidance hole and a cable passing through the avoidance hole in the installed state. With reference to the first aspect, in one embodiment, the heating structure includes a plurality of electric heating plates, the electric heating plates being disposed outside the housing member; the shell is made of heat conducting materials. With reference to the first aspect, in one embodiment, a wiring groove is provided on the outer side of the housing member, the wiring groove is used for accommodating a connecting wire of the electric heating plate, and the wiring groove is filled with a heat insulating material. With reference to the first aspect, in one embodiment, two adjacent housing parts are detachably connected by bolts. The technical scheme provided by the embodiment of the application has the beneficial effects that: the shell member through detachable connection encloses