CN117059414A - Heat preservation device and method for hydraulic mechanism of outdoor circuit breaker of transformer substation - Google Patents
Heat preservation device and method for hydraulic mechanism of outdoor circuit breaker of transformer substation Download PDFInfo
- Publication number
- CN117059414A CN117059414A CN202311074734.XA CN202311074734A CN117059414A CN 117059414 A CN117059414 A CN 117059414A CN 202311074734 A CN202311074734 A CN 202311074734A CN 117059414 A CN117059414 A CN 117059414A
- Authority
- CN
- China
- Prior art keywords
- temperature
- heat preservation
- control box
- hydraulic mechanism
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004321 preservation Methods 0.000 title claims abstract description 41
- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 238000012423 maintenance Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to a heat preservation device and a method for a hydraulic mechanism of an outdoor circuit breaker of a transformer substation, which are constructed by a heat preservation unit, a temperature control box and an external power supply, wherein the temperature data transmitted back by the temperature control box through a temperature sensor is compared with a set temperature threshold value, and a temperature controller is used for controlling a heating layer of a heat tracing belt so as to ensure that the temperature of a nitrogen cylinder of the circuit breaker is always in a required range. At present, open type equipment is commonly adopted in substations of 500kV and above in Tianjin areas, and the outdoor hydraulic mechanism is more in application and has the defect of frequent pressurizing of the outdoor hydraulic mechanism, so that the method has the condition of being widely popularized in Tianjin areas and other northern areas.
Description
Technical Field
The invention belongs to the technical field of power transformation operation and maintenance, and particularly relates to a heat preservation device and method for a hydraulic mechanism of an outdoor circuit breaker of a transformer substation.
Background
The circuit breaker is a common equipment in the transformer substation, 220kV and above voltage class circuit breaker generally uses hydraulic mechanism, hydraulic mechanism has the advantage that the work of operation is big, the action is steady, vibrations are little, however, hydraulic mechanism has the mechanical properties to receive the great characteristics of temperature influence, especially in northern area, outdoor hydraulic mechanism winter ubiquitous number of times of beating increases the problem, simultaneously the nitrogen cylinder is under the low temperature condition, easily causes the piston rod jam to arouse the circuit breaker frequently of beating, seriously influences the safe and stable operation of equipment, consequently, it is very important to keep warm to outdoor circuit breaker hydraulic mechanism.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a heat preservation device and a heat preservation method for a hydraulic mechanism of an outdoor circuit breaker of a transformer substation.
The invention solves the technical problems by the following technical proposal:
the utility model provides an outdoor circuit breaker hydraulic mechanism heat preservation device of transformer substation which characterized in that: the temperature control box is connected with the heat preservation unit and the external power supply through cables respectively.
Moreover, the heat preservation unit includes shell protective layer, middle heat preservation and heat tracing area zone heating layer, heat tracing area heating layer installs in the section of thick bamboo wall below of nitrogen gas cylinder pressure storage section of thick bamboo and is fixed through the clamp, the shell protective layer adopts 1mm thickness stainless steel, middle heat preservation adopts 20mm thickness ethylene propylene diene monomer, heat tracing area heating layer adopts 1.6mm silica gel heating plate and closely laminates with the barrel of nitrogen gas cylinder pressure storage section of thick bamboo.
In addition, each circuit breaker is provided with 1 temperature controller, 1 temperature sensor and 2 temperature control boxes at intervals, and an alternating current air switch, a temperature controller, an alternating current contactor and corresponding terminal rows are arranged in the circuit breakers to respectively control the start and stop of heating layers of heating zones of corresponding intervals; the temperature control box is fixed on the maintenance platform support frame, and the size of the temperature control box is 500 x 400 x 600mm.
A heat preservation method for a hydraulic mechanism of an outdoor circuit breaker of a transformer substation is characterized by comprising the following steps of: the method comprises the following steps:
s1, respectively installing and fixing the heat preservation unit and the temperature control box according to the device structure;
s2, connecting the heat preservation unit, the temperature control box and an external power supply by using cables;
s3, setting a temperature threshold by using a temperature setting key of the temperature control box;
s4, the temperature sensor transmits the detected temperature signal to the temperature controller in real time;
s5, the temperature controller receives the temperature signal and compares the temperature signal with a set temperature threshold, if the temperature value is within the range of the set temperature threshold, the temperature is normal, otherwise, the temperature is abnormal;
and S6, controlling the heating layer of the heat tracing band by the temperature controller, starting heating of the heating layer of the heat tracing band if the temperature is lower than a starting value, and stopping heating of the heating layer of the heat tracing band if the temperature is higher than a stopping value.
The invention has the advantages and beneficial effects that:
according to the heat preservation device and the method for the outdoor circuit breaker hydraulic mechanism of the transformer substation, the heat preservation unit, the temperature control box and the external power supply are used for constructing the heat preservation device for the outdoor circuit breaker hydraulic mechanism of the transformer substation, the temperature data transmitted by the temperature control box through the temperature sensor is compared with the set temperature threshold, the temperature controller is used for controlling the heating layer of the heat tracing belt so as to ensure that the temperature of the nitrogen cylinder of the circuit breaker is always in the required range, the temperature control and the maintenance function of the nitrogen cylinder of the outdoor circuit breaker of the transformer substation are realized, the heat preservation device has the characteristics of simple structure and low manufacturing cost, the problem that the outdoor circuit breaker hydraulic mechanism is frequently pressed in winter can be effectively solved, and the heat preservation device has a good application effect. At present, open type equipment is commonly adopted in substations of 500kV and above in Tianjin areas, and the outdoor hydraulic mechanism is more in application and has the defect of frequent pressurizing of the outdoor hydraulic mechanism, so that the method has the condition of being widely popularized in Tianjin areas and other northern areas.
Drawings
FIG. 1 is a schematic diagram of the connection of the various parts of the present invention;
FIG. 2 is a schematic illustration of an application of the present invention;
FIG. 3 is a structural design of the present invention;
fig. 4 is a design drawing of the temperature control box of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are intended to be illustrative only and not limiting in any way.
The utility model provides an outdoor circuit breaker hydraulic mechanism heat preservation device of transformer substation, includes heat preservation device, control by temperature change case, external power source, and wherein, control by temperature change case passes through the cable and links to each other with heat preservation device and external power source respectively as shown in figure 1, monitors and controls the temperature of circuit breaker nitrogen cylinder.
As shown in FIG. 2, the heat tracing belt in the heat preservation device is arranged below the wall of the nitrogen cylinder pressure storage cylinder, and as shown in FIG. 3, the heat preservation device comprises a shell protection layer, a middle heat preservation layer and a heat tracing belt heating layer, wherein the shell protection layer is made of stainless steel with the thickness of 1mm, the middle heat preservation layer is made of ethylene propylene diene monomer with the thickness of 20mm, and the heating layer is made of a 1.6mm silica gel heating sheet and is tightly attached to the cylinder. The heat tracing belt and the external heat preservation cotton are integrally designed, the heat tracing belt is attached to the pressure storage cylinder of the circuit breaker, after the heat tracing belt is installed and fixed, the heat tracing belt is tightly wrapped, accessories such as a clamp are installed and fixed, wherein the protective layer, the heat preservation layer and the heating layer are attached together by the pressure storage cylinder, the heat tracing belt does not need to be wrapped on the tank body layer by layer, the installation time is saved, and meanwhile, the heat tracing belt adopts an anti-aging and good-insulation silicon rubber heating plate. All the heat preservation components are simple and convenient to install and attractive in appearance. The temperature of the heat tracing belt is adjustable, and the external power supply is externally connected.
As shown in fig. 4, in the design diagram of the temperature control box of the invention, each circuit breaker is provided with 1 temperature controller, 1 temperature sensor and 2 circuit breakers, and an alternating current air switch, a temperature controller, an alternating current contactor and corresponding terminal blocks are arranged in the 1 temperature control box to respectively control the start and stop of the corresponding interval heat tracing belt. The temperature control box is fixed on the maintenance platform support frame and is provided with perfect moisture removal and dehumidification functions (50W is thrown to a long time and 50W is controlled by temperature), the temperature control box is fixed on the side surface of the maintenance platform support frame, and the temperature control box is fixed on the side surface of the maintenance platform through a small support. Temperature control box dimensions: about 500 x 400 x 600mm (long x wide x high), the temperature control box is designed with rain-proof eave, and no ventilation opening. The temperature control box is grounded through a 10mm < 2 > yellow-green grounding wire and a grounding terminal.
A heat preservation method of a heat preservation device of a hydraulic mechanism of an outdoor circuit breaker of a transformer substation is characterized by comprising the following steps: the method comprises the following steps:
step 1, respectively installing and fixing a heat preservation device and a temperature control box component according to a device structure;
step 2, connecting the heat preservation device, the temperature control box and an external power supply by using a cable;
step 3, setting a temperature threshold by using a temperature setting key of the temperature control box;
step 4, the temperature sensor transmits the detected temperature signal to the temperature controller in real time;
step 5, the temperature controller receives the temperature signal and compares the temperature signal with a set temperature threshold, if the temperature value is within the range of the set temperature threshold, the temperature is normal, otherwise, the temperature is abnormal;
and 6, controlling the heat tracing band by the temperature controller, starting heating the heat tracing band if the temperature is lower than a starting value, and stopping heating the heat tracing band if the temperature is higher than a stopping value.
Although the embodiments of the present invention and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the embodiments and the disclosure of the drawings.
Claims (4)
1. The utility model provides an outdoor circuit breaker hydraulic mechanism heat preservation device of transformer substation which characterized in that: the temperature control box is connected with the heat preservation unit and the external power supply through cables respectively.
2. The substation outdoor breaker hydraulic mechanism insulation apparatus of claim 1, wherein: the heat preservation unit comprises a shell protection layer, a middle heat preservation layer and a heat tracing band heating layer, wherein the heat tracing band heating layer is arranged below the cylinder wall of the nitrogen cylinder pressure storage cylinder and is fixed through a clamp, the shell protection layer is made of stainless steel with the thickness of 1mm, the middle heat preservation layer is made of ethylene propylene diene monomer with the thickness of 20mm, and the heat tracing band heating layer is made of a silica gel heating sheet with the thickness of 1.6mm and is tightly attached to the cylinder body of the nitrogen cylinder pressure storage cylinder.
3. The substation outdoor breaker hydraulic mechanism insulation apparatus of claim 1, wherein: each circuit breaker is provided with 1 temperature controller, 1 temperature sensor and 2 temperature control boxes at intervals, and an alternating current air switch, a temperature controller, an alternating current contactor and corresponding terminal blocks are arranged in the circuit breakers to respectively control the start and stop of heating layers of heating zones of corresponding intervals; the temperature control box is fixed on the maintenance platform support frame, and the size of the temperature control box is 500 x 400 x 600mm.
4. A substation outdoor breaker hydraulic mechanism insulation method according to any one of claims 1-3, characterized in that: the method comprises the following steps:
s1, respectively installing and fixing the heat preservation unit and the temperature control box according to the device structure;
s2, connecting the heat preservation unit, the temperature control box and an external power supply by using cables;
s3, setting a temperature threshold by using a temperature setting key of the temperature control box;
s4, the temperature sensor transmits the detected temperature signal to the temperature controller in real time;
s5, the temperature controller receives the temperature signal and compares the temperature signal with a set temperature threshold, if the temperature value is within the range of the set temperature threshold, the temperature is normal, otherwise, the temperature is abnormal;
and S6, controlling the heating layer of the heat tracing band by the temperature controller, starting heating of the heating layer of the heat tracing band if the temperature is lower than a starting value, and stopping heating of the heating layer of the heat tracing band if the temperature is higher than a stopping value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311074734.XA CN117059414A (en) | 2023-08-24 | 2023-08-24 | Heat preservation device and method for hydraulic mechanism of outdoor circuit breaker of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311074734.XA CN117059414A (en) | 2023-08-24 | 2023-08-24 | Heat preservation device and method for hydraulic mechanism of outdoor circuit breaker of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117059414A true CN117059414A (en) | 2023-11-14 |
Family
ID=88669028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311074734.XA Pending CN117059414A (en) | 2023-08-24 | 2023-08-24 | Heat preservation device and method for hydraulic mechanism of outdoor circuit breaker of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117059414A (en) |
-
2023
- 2023-08-24 CN CN202311074734.XA patent/CN117059414A/en active Pending
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