CN114216049B - Gas insulation medium filling device - Google Patents
Gas insulation medium filling device Download PDFInfo
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- CN114216049B CN114216049B CN202111368284.6A CN202111368284A CN114216049B CN 114216049 B CN114216049 B CN 114216049B CN 202111368284 A CN202111368284 A CN 202111368284A CN 114216049 B CN114216049 B CN 114216049B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/08—Mounting arrangements for vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/10—Arrangements for preventing freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0103—Exterior arrangements
- F17C2205/0107—Frames
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0302—Heat exchange with the fluid by heating
- F17C2227/0309—Heat exchange with the fluid by heating using another fluid
- F17C2227/0311—Air heating
- F17C2227/0313—Air heating by forced circulation, e.g. using a fan
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0367—Localisation of heat exchange
- F17C2227/0369—Localisation of heat exchange in or on a vessel
- F17C2227/0376—Localisation of heat exchange in or on a vessel in wall contact
- F17C2227/0383—Localisation of heat exchange in or on a vessel in wall contact outside the vessel
- F17C2227/0386—Localisation of heat exchange in or on a vessel in wall contact outside the vessel with a jacket
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/03—Control means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0631—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/031—Dealing with losses due to heat transfer
- F17C2260/032—Avoiding freezing or defrosting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The gas-insulated medium filling device comprises a heating cabin, a gas-insulated medium heating module and an electric control module, wherein the electric control module comprises an electric control circuit, a heater switch circuit and a driving motor switch circuit, the electric control circuit comprises a temperature control circuit, a heater control circuit and a driving motor control circuit, the heater control circuit comprises a heater main switch, and the driving motor control circuit is connected with the heater main switch and comprises a time relay and a driving motor main switch; the heater switch circuit comprises a first auxiliary switch linked with the heater main switch, and the driving motor switch circuit comprises a second auxiliary switch linked with the driving motor main switch. The device has a plurality of modes such as a heating mode, a waste heat discharging mode and the like, so that operators can finish the insulating medium filling treatment work in a short time, and the working efficiency is improved.
Description
Technical Field
The application belongs to the technical field of insulating medium filling, and particularly relates to a gas insulating medium filling device.
Background
At present, when a gas insulating medium is filled in a traditional way, an operator uses the canned gas insulating medium which is in a liquid state after compression, and adds the gas in the can into the high-pressure conveying pipeline through a pipeline connection method. Because the high-pressure pipeline has long path and large diameter, the volume is also large, each compressed gas tank needs to be placed in the maximum filling state as much as possible every time when the gas insulating medium is filled, and because the compressed gas in the gas tank continuously enters the high-pressure pipeline and simultaneously takes away a large amount of heat energy, the condensation phenomenon of the tank body begins to appear and ice accumulation begins slowly within a short time after the filling begins. To alleviate this phenomenon, the following two methods are currently generally employed:
1, the filling flow of the gas insulating medium is reduced so as to prevent ice from accumulating in the tank body, but in this way, the operation time is increased, and the risk of delaying the construction period is caused.
2, use hot blast to heat the compression jar body, because jar body cooling rate is very fast, consequently at the operation in-process, need many operators to hold hot blast and heat each position of jar body respectively, hot blast generally can only heat a certain point of jar body moreover, the heat gives out to accelerate, heat energy can not make full use of, therefore whole heating process is not ideal, and it is manpower consuming moreover, consuming time, the manpower increases and hot blast uses and increases interim power consumption, potential industrial safety risk has been increased.
In summary, the current operation of filling the gas insulation medium has the problems of long time consumption and labor consumption, and the potential industrial safety risk is increased or decreased by using hot air blowing by multiple people, so that the efficiency is low, and the risk of delaying the construction period is more involved.
Disclosure of Invention
The application aims to provide a gas insulating medium filling device, which aims to solve the problems of low efficiency and high safety risk in the traditional gas insulating medium filling operation.
The embodiment of the application provides a gas-insulated medium filling device, which comprises a heating cabin, a gas-insulated medium heating module and an electric control module, wherein the electric control module comprises an electric control circuit, a heater switch circuit and a driving motor switch circuit, the electric control circuit comprises a temperature control circuit, a heater control circuit and a driving motor control circuit, the heater control circuit comprises a heater main switch, and the driving motor control circuit is connected with the heater main switch and comprises a time relay and a driving motor main switch;
the heater switching circuit includes a first auxiliary switch in linkage with the heater main switch,
the driving motor switch circuit comprises a second auxiliary switch which is linked with the driving motor main switch.
Further, the temperature control circuit comprises a temperature controller and an intermediate relay, and the intermediate relay controls the heater control circuit according to signals sent by the temperature controller.
Further, the heater main switch is provided with an electric excitation coil connected with the intermediate relay.
Further, the heater control circuit comprises a start switch and a stop switch, wherein the start switch is connected with the heater main switch in parallel, and the stop switch is connected with the heater main switch in series through a switch controlled by the intermediate relay.
Further, when the heater main switch is opened, the time relay enables the driving motor main switch to be continuously closed within a preset time period.
Further, the temperature control circuit also comprises a temperature sensing resistor connected with the temperature controller and used for acquiring the temperature inside the heating cabin.
As an improvement of the above embodiment, the electrical control module further includes a power supply circuit and a transformation circuit, the power supply circuit is connected with the heater switch circuit and the driving motor switch circuit, and the electrical control circuit is connected with the power supply circuit through the transformation circuit.
Further, the electrical control circuit further includes:
a heater operation state indicating circuit connected with the heater main switch;
a driving motor running state indicating circuit connected with the driving motor main switch;
and the device operation state indicating circuit is connected with the voltage transformation circuit.
Further, the gas-insulated medium heating module includes:
the driving motor is connected with the driving motor switch circuit, and a fan blade is connected below the driving motor;
and the air heater is connected with the heater switch circuit and is arranged below the fan blade.
Further, the heating cabin comprises a heating cabin door, the bottom of the heating cabin is communicated with the gas-insulated medium heating module, and the top of the heating cabin is provided with an exhaust hole.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
1. the heating cabin is heated by the gas-insulated medium heating module, so that enough thermal power is provided, the whole gas-insulated medium storage tank can be heated, the construction period is shortened, and the efficiency is improved;
2. through the electric control module, the device has a plurality of modes such as a heating mode, a waste heat discharging mode and the like, so that the device is more convenient to use, an operator can finish an insulation treatment work in a short time by using the device, potential industrial safety risks caused by long-time on-site removal of a plurality of people are avoided, a great deal of time is consumed, and the working efficiency is improved;
3. the transformation unit of the electric control module can provide safety grade voltage, and avoids electric shock risks in the using process of equipment.
Drawings
Fig. 1 is a schematic structural diagram of a gas-insulated medium filling device according to an embodiment of the present application;
fig. 2 is a schematic circuit diagram of an electrical control module in the gas-insulated medium filling device shown in fig. 1.
In the figure: 1. the air heater comprises an electric control module 3, a heating cabin 11, a display screen 12, a device operation state display lamp 13, an air heater operation state indicator lamp 14, a start button 15, a stop button 16, a driving motor operation state indicator lamp 17, a power socket 21, a driving motor 22, a filter screen 23, fan blades 24, an air heater 31, a cabin door 32, a temperature sensing resistor 33, an air pipe through hole 34 and an exhaust hole.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Fig. 1 shows a schematic structural diagram of a gas-insulated medium filling device according to an embodiment of the present application, as shown in fig. 1, in this embodiment, the gas-insulated medium filling device includes an electrical control module 1, a gas-insulated medium heating module 2, and a heating chamber 3, and the electrical control module 1 is installed above the gas-insulated medium heating module, and includes a display screen 11, a device running state display lamp 12, an air heater running state indicator lamp 13, a start button 14, a stop button 15, a driving motor running state indicator lamp 16, and a power socket 17. The electric control module 1 is used for controlling the gas-insulated medium heating module 2 to heat the heating cabin.
The gas-insulated medium heating module 2 comprises a shell, wherein the upper half part of the inside of the shell is provided with a driving motor 21, the side surface of the upper half part of the shell is provided with an opening, so that external air enters the shell, a filter screen 22 is covered on the opening, the lower part of the driving motor 21 is connected with a fan blade 23, and the external air entering the opening moves downwards. An air heater 24 is arranged below the fan blades 23 and is used for heating the air entering at the opening. The bottom of the shell is provided with a channel connected with the heating cabin 3, and the air heated by the air heater 24 enters the heating cabin 3 from the channel.
The heating cabin 3 comprises an openable cabin door 31, a gas-insulated medium storage tank can be placed into the heating cabin from the cabin door 31, a connecting piece is arranged between the cabin door 31 and the heating cabin body and used for ensuring tightness of the inside of the heating cabin body, a temperature sensing resistor 32 is arranged in the heating cabin, a gas pipe through hole 33 which enables a connecting conduit of the gas-insulated medium storage tank to extend out is arranged on the cabin door 31, the connecting conduit can be connected to a gas transmission pipeline of a high-pressure pipeline, and a plurality of exhaust holes 34 are formed in the top of the heating cabin so as to exhaust heated air.
Further, in order to better explain how the electric control module 1 controls the gas-insulated medium heating module 2, referring to fig. 2, a control manner of the electric control module 1 is described by a circuit diagram of the electric control module 1 in the present embodiment.
As shown in fig. 2, the L end and the N end are power connection interfaces, which are directly connected to the power socket 17 in the above embodiment, and a power supply circuit is connected to a power supply through the L end and the N end and is added to the transformer T through the fuse FU1 to form a loop, and the power supply circuit is connected to a heater switch circuit through the fuse FU2, and the heater switch circuit controls the heater RS (i.e., the air heater 24 in the above embodiment); the power supply circuit is connected to a driving motor switching circuit through a fuse FU3, which controls the driving motor M (i.e., the driving motor 21 in the above-described embodiment).
After the power supply circuit is added to the transformer T to form a loop, the transformer T is electrified, the secondary output alternating voltage is supplied to the transformer circuit, the secondary output alternating voltage is added to the rectifier bridge D1 through the fuse FU4 of the transformer circuit to form a loop, and the alternating current is converted into direct current through the transformer circuit to finish rectification.
The voltage transformation circuit is connected with the device operation state indicating circuit, and after the current is limited by the current limiting resistor R1 of the device operation state indicating circuit, a loop is formed by the device operation state indicating lamp D2 (namely the indicating lamp 13 in the embodiment), and the power supply indicating lamp D2 is lightened.
Meanwhile, the voltage transformation circuit supplies power to the temperature control circuit, the temperature control circuit comprises a temperature controller K0 and a temperature sensing resistor R2 connected with the temperature controller K0, the temperature sensing resistor R2 is used for transmitting real-time temperature signals inside the heating cabin to the temperature controller, the temperature controller is connected with the display screen 11 in the embodiment, and the display screen 11 can display real-time temperature inside the heating cabin.
The temperature controller K0 compares the real-time temperature in the heating chamber with a preset limit temperature and then sends a control signal to the intermediate relay K2, and the control signal can enable the intermediate relay K2 to be powered on or powered off so as to enable the corresponding auxiliary switch A2 in the heater control circuit to be turned on or turned off.
When the intermediate relay K2 is electrified, the heater control circuit is conducted, magnetism is generated after the electric excitation coil K1 of the heater control circuit is electrified, the heater main switch A1 is closed, the heater main switch A1 is a normally open contact and is linked with the first auxiliary switch B1 of the heater switch circuit, when the heater main switch A1 is closed, the first auxiliary switch B1 is also closed at the same time, when the heater main switch A1 is opened, the first auxiliary switch B1 is also opened at the same time, and at the moment, the heater is electrified to start working.
In order to better control the heater switch, the present embodiment further connects the button switch AN1 (i.e., the start switch 15 in the above embodiment) in parallel to the heater main switch, and the button switch AN2 (i.e., the stop switch in the above embodiment) is connected in series to the auxiliary switch A2, and controls the switching of the heater by pressing the start and stop buttons.
When the main switch of the heater is closed, the auxiliary switch C2 on the driving motor control circuit is also closed at the same time, the driving motor control circuit supplies power, the driving motor control circuit after power supply comprises a time relay KT and a driving motor main switch CT, and the time relay KT can maintain the driving motor main switch in an original state for a period of time when the auxiliary switch C2 is switched in each time.
When the driving motor main switch CT is closed, the first auxiliary switch B3 is also closed at the same time, and when the driving motor main switch CT is opened, the first auxiliary switch B3 is also opened at the same time, and at the moment, the driving motor is electrified to start working.
The indication lamps D3 and D4 in fig. 2 (i.e., the indication lamps 14 and 16 in the above-described embodiment) are turned on when the heater main switch A1 and the driving motor main switch CT are closed, for displaying the operation states of the heater and the driving motor.
The technical scheme of the present application will be further described below with reference to fig. 1 and 2 by way of a specific implementation manner of this embodiment.
First, the device is placed on a flat ground. The cabin door 31 is opened to put the gas-insulated medium storage tank into the interior, the gas-insulated medium conveying pipeline is connected to the gas-insulated medium storage tank through the air pipe through hole 33, the connection is ensured to be well fastened, the check exhaust hole 34 is free from foreign matter shielding, the cabin door 31 is closed, and the gas-insulated medium filling operation can be started at the moment.
And secondly, under the condition that insulation of the special tool is not abnormal, an insulation meter is used for testing, an external power line is used for introducing a power supply into the power socket 17, the power supply forms a loop through the power socket 17, an L end and an N end through the fuse FU1 and is added to the transformer T, the transformer T is electrified, meanwhile, the transformer T secondarily outputs 24V alternating voltage, the voltage is added to the rectifier bridge D1 through the fuse FU4 to form a loop, the rectifier bridge D1 converts alternating current into direct current to finish rectification, the direct current power supply forms a loop through the power indicator D2 after being limited by the current limiting resistor R1, and the power indicator D2 is lightened. Meanwhile, the temperature controller K0 is powered on, the temperature sensing resistor R2 transmits real-time temperature signals inside the heating cabin 3 to the temperature controller K0, the temperature controller is connected with the display screen 12 to display real-time temperature conditions inside the heating cabin 3, and the device enters a preparation state.
Third, the temperature controller display screen 11 is checked to display the real-time temperature condition inside the heating cabin 3, and the protection operation temperature value is set by the temperature controller K0 according to the on-site environment temperature (the temperature inside the heating cabin 3 is lower than the environment temperature due to the gas discharge in the tank at this time), and is generally not higher than 60 ℃.
Fourth, checking and determining that the temperature controller controls the display screen 11 to normally display the real-time temperature, and the protection action temperature value is set. When the start button 14 (AN 1) is pressed, the start button 14 is closed, the positive polarity power supply is turned on through the closed AN2, the on-state intermediate relay K2 (the on-state and the off-state of the K2 are controlled by a control signal sent by the temperature controller K0), a loop is formed through the closed AN1 and the coil K1, the coil K1 is electrically excited, and the main switch A1 is closed. One main power supply forms a loop with the heater 24 (RS) through the fuse FU1 and the auxiliary switch B1 which is closed along with the main switch A1, and the heater 24 (RS) starts to heat. One path of direct current power supply forms a loop with the heater indicator lamp D3 through the closed auxiliary switch E1 and the current limiting resistor R3, and the heater indicator lamp D3 is lightened. Meanwhile, one path of direct current power supply forms a loop through a closed auxiliary switch C1, a time relay KT is powered on, a normally open switch connected with a main switch of a driving motor is closed, a loop is formed through a main switch A3 of the driving motor, and a main switch A3 is closed. One path of direct current power supply forms a loop with the driving motor running indicator lamp D4 through the auxiliary switch E3 which is closed along with the closing of the A3 main switch and the current limiting resistor R4, and the driving motor running indicator lamp D4 is lightened. Meanwhile, a main power supply forms a loop with the driving motor 21 (M) through the fuse FU3 and the auxiliary switch B3 of the main switch A3, and the driving motor 21 (M) is powered to start rotating operation.
The driving motor 21 (M) is powered to start rotating, meanwhile, the fan blades 23 are driven to start high-speed operation, the fan blades 23 start high-speed operation, outside air is filtered by the air inlet filter screen and then is pushed to the heater 24 (RS) by the rotating fan blades 23, and heat generated by the heater 24 (RS) is sent into the heating cabin 3. As the cabin door 31 is closed, the flowing hot air acts on the surface of the gas-insulated medium storage tank from bottom to top, so that the gas-insulated medium storage tank is comprehensively heated, and the continuously-entering hot air is discharged from the cabin through the exhaust hole 34 by the residual gas cooled by the gas-insulated medium storage tank. This condition is continued and the heating process is maintained until the entire gas-insulated medium filling operation is completed.
Thermal protection: the temperature sensing probe 32 (R2) transmits the internal temperature of the heating chamber 3 to the temperature controller K0, and when the set temperature of the temperature controller K0 is reached, the temperature controller K0 issues a thermal protection instruction, the intermediate relay K2 circuit is cut off, the coil K1 circuit is cut off, the closed main switch A1 is turned off, the power supply of the heater 24 (RS) is cut off, and the heating is stopped. Because the A1 is disconnected, the time relay KT enters a countdown state, the main switch A3 is continuously closed, the driving motor 21 (M) continuously operates, external air continuously enters the heating cabin 3, heat in the heating cabin 3 is continuously discharged until the time relay set time is reached, and the driving motor stops operating and can be started again as required.
When the stop button 15 (AN 2) is pressed to stop the gas-insulated medium charging operation, the intermediate relay K2 circuit is cut off, the coil K1 circuit is cut off, the closed main switch A1 is opened, the power supply to the heater 24 (RS) is cut off, and the heating is stopped. Because the main switch A1 is disconnected, the time relay KT enters a countdown state, the main switch A3 is continuously closed, the driving motor 21 (M) continuously runs, external air continuously enters the heating cabin 3, and heat in the heating cabin 3 is continuously discharged until the time relay setting time is reached, the driving motor stops running, and the whole operation is completed.
And (3) for the special tool for executing the filling of the gas insulating medium, stopping the special tool, and then placing the special tool at a dry ventilation place for storage for standby.
Through the embodiment, the air heater and the heating cabin provide enough heat power for the device, so that the problem of overlong heating time caused by insufficient heat power of a common air heater is avoided, the construction period is shortened, and the efficiency is improved. The device provides enough wind power for the device through the driving motor and the fan blades, and the heat generated by the air heater of the device is sent into the heating cabin, so that the purpose of heating the gas medium storage tank body is achieved. Through electric control module, for this device provides multiple operating condition mode, wherein there is the thermal power mode to and the waste heat discharge mode, multiple mode selection lets this device more facilitate the use, and an operation personnel just can accomplish an insulation processing work through this device in the short time, has avoided many people to go to the potential industrial safety risk that brings on site for a long time, has improved work efficiency. The electric control module introduces a voltage transformation circuit, provides safety level voltage for the electric control part of the device, and avoids the electric shock risk in the use process of the equipment. The hot air is concentrated in the cabin through the heating cabin, so that the loss of the hot air is avoided, the hot air is effectively utilized, and the filling period of the gas insulation medium is shortened.
The device provided by the application has the advantages of small volume, convenience in carrying and moving in the operation of filling the gas insulating medium, convenience in operation, and capability of developing work by only putting the tank body for storing the gas insulating medium to be used into the heating cabin, closing the cabin door and connecting the gas pipeline, accessing the power supply, starting the working mode through the starting button and setting the stop heating temperature. The whole operation process is simple, the treatment process is controllable, and potential safety hazards of a plurality of people on site caused by long-time operation and complex on-site working conditions to workers are avoided.
It should be understood that the order of steps in the foregoing embodiments does not mean that the order of execution of the steps should be determined by the functions and internal logic of the steps, and should not be construed as limiting the implementation of the embodiments of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other manners. The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (5)
1. The gas insulating medium filling device comprises a heating cabin, a gas insulating medium heating module and an electric control module, and is characterized in that,
the electric control module comprises an electric control circuit, a heater switch circuit and a driving motor switch circuit,
the electric control circuit comprises a temperature control circuit, a heater control circuit and a driving motor control circuit, wherein the heater control circuit comprises a heater main switch, and the driving motor control circuit is connected with the heater main switch and comprises a time relay and a driving motor main switch;
the heater switch circuit includes a first auxiliary switch that is in linkage with the heater main switch,
the driving motor switch circuit comprises a second auxiliary switch linked with the driving motor main switch,
the temperature control circuit comprises a temperature controller and an intermediate relay, the intermediate relay controls the heater control circuit according to the signal sent by the temperature controller,
the heater main switch is provided with an electric excitation coil connected with the intermediate relay,
the heater control circuit comprises a start switch and a stop switch, the start switch is connected with the heater main switch in parallel, the stop switch is connected with the heater main switch in series through a switch controlled by the intermediate relay, when the heater main switch is opened, the time relay enables the driving motor main switch to be continuously closed within a preset time period,
the temperature control circuit further comprises a temperature sensing resistor connected with the temperature controller and used for acquiring the temperature inside the heating cabin.
2. The gas-insulated medium-filling apparatus according to claim 1, wherein the electrical control module further comprises a power supply circuit and a voltage transformation circuit, the power supply circuit being connected to the heater switching circuit and the driving motor switching circuit, the electrical control circuit being connected to the power supply circuit through the voltage transformation circuit.
3. The gas-insulated medium-filling apparatus according to claim 2, wherein the electrical control circuit further comprises:
a heater operation state indicating circuit connected with the heater main switch;
a driving motor running state indicating circuit connected with the driving motor main switch;
and the device operation state indicating circuit is connected with the voltage transformation circuit.
4. A gas-insulated medium-filling apparatus according to claim 3, wherein the gas-insulated medium-heating module comprises:
the driving motor is connected with the driving motor switch circuit, and a fan blade is connected below the driving motor;
and the air heater is connected with the heater switch circuit and is arranged below the fan blade.
5. The gas-insulated medium-filling apparatus according to claim 4, wherein the heating chamber comprises a heating chamber door, the bottom of the heating chamber is communicated with the gas-insulated medium heating module, and the top of the heating chamber is provided with a vent hole.
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| CN202111368284.6A CN114216049B (en) | 2021-11-18 | 2021-11-18 | Gas insulation medium filling device |
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| CN202111368284.6A CN114216049B (en) | 2021-11-18 | 2021-11-18 | Gas insulation medium filling device |
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| CN114216049A CN114216049A (en) | 2022-03-22 |
| CN114216049B true CN114216049B (en) | 2023-09-22 |
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| CN114216049A (en) | 2022-03-22 |
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