CN111031762A - Oil cooling device of radar transmitter - Google Patents
Oil cooling device of radar transmitter Download PDFInfo
- Publication number
- CN111031762A CN111031762A CN201911337550.1A CN201911337550A CN111031762A CN 111031762 A CN111031762 A CN 111031762A CN 201911337550 A CN201911337550 A CN 201911337550A CN 111031762 A CN111031762 A CN 111031762A
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- Prior art keywords
- oil
- cooling
- cooling device
- transformer oil
- transformer
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20263—Heat dissipaters releasing heat from coolant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/282—Transmitters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Transformer Cooling (AREA)
Abstract
The invention discloses an oil cooling device of a radar transmitter, which comprises a cabinet, an oil tank, a filtering component, a cooling component and a power component, wherein the oil tank, the filtering component, the cooling component and the power component are arranged in the cabinet; the filtering component is used for filtering impurities and/or moisture in the transformer oil; the cooling assembly is used for cooling the filtered transformer oil; the power assembly is used for enabling the transformer oil in the oil tank to sequentially flow into the filtering assembly and the cooling assembly, conveying the cooled transformer oil to an external device to be cooled for heat exchange and cooling, and enabling the transformer oil subjected to heat exchange and cooling to flow back to the oil tank. The oil cooling device of the invention takes the transformer oil as the heat carrier of the oil cooling system, keeps the insulating capability of the heat carrier not to be reduced basically in the long-term operation of the system, and meets the system requirement of the radar transmitter.
Description
Technical Field
The invention relates to the technical field of cooling, in particular to an oil cooling device for a radar transmitter.
Background
A radar transmitter refers to a radio device that provides a high power radio frequency signal to a radar. The transmitter can be classified into a continuous wave transmitter and a pulse transmitter according to a modulation scheme. The transmitter consists of a primary radio frequency oscillator and a pulse modulator. The transmitter is used as a key device of the radar, the power density of the transmitter is high, an excellent heat dissipation effect is required, and the assembly density and the power density of the radar transmitter are continuously improved along with the development of the modern radar technology and the continuous progress of the power device manufacturing technology. The feasible cooling mode and the excellent cooling effect become more and more important supports for the whole radar to have high reliability indexes.
In the radar transmitter liquid cooling device in the prior art, glycol aqueous solution is used as a heat carrier, a liquid cooling pump pumps the filtered glycol aqueous solution to a heating electronic component, heating energy of the heating electronic component is taken out through forced convection heat exchange of liquid, and then the system heat energy is dissipated to the surrounding atmosphere through an air-water heat exchanger. However, with the development of radar transmitters, users also put forward new requirements on the liquid cooling system, that is, the breakdown voltage of the heat carrier provided by the liquid cooling system is required to be higher than 30kV, and the breakdown voltage of the glycol aqueous solution is lower than 10kV, which cannot meet the requirements; in addition, the insulation property of the heat carrier needs to be maintained for a long time during operation, and the volume and weight of the cooling device also meet the transportation condition, which cannot be met by the existing liquid cooling system.
Therefore, in order to overcome the technical defects in the prior art, a novel oil cooling device for a radar transmitter needs to be provided.
Disclosure of Invention
The invention aims to provide an oil cooling device for a radar transmitter. The oil cooling device takes transformer oil with high breakdown voltage as a heat carrier of an oil cooling system, and simultaneously realizes that the insulating capability of the heat carrier is basically not reduced in the long-term operation of the system, thereby meeting the requirements of a radar transmitter system.
In order to achieve the purpose, the invention provides an oil cooling device of a radar transmitter, which comprises a cabinet, an oil tank, a filtering component, a cooling component and a power component, wherein the oil tank, the filtering component, the cooling component and the power component are arranged in the cabinet; the filtering component is used for filtering impurities and/or moisture in the transformer oil; the cooling assembly is used for cooling the filtered transformer oil; the power assembly is used for enabling the transformer oil in the oil tank to sequentially flow into the filtering assembly and the cooling assembly, conveying the cooled transformer oil to an external device to be cooled for heat exchange and cooling, and enabling the transformer oil subjected to heat exchange and cooling to flow back to the oil tank.
Optionally, the power assembly is a fluid supply pump disposed between the oil tank and the filter assembly.
Optionally, the filter assembly comprises a plurality of filters arranged in parallel.
Optionally, the filter includes a stainless steel mesh and/or a desiccant therein.
Optionally, the cooling component cools the transformer oil by means of water-oil heat exchange.
Optionally, the oil cooling device further comprises a flow regulating circuit; and the inlet of the flow regulating loop is connected with the outlet of the liquid supply pump, and the outlet of the flow regulating loop is connected with the inlet of the liquid supply pump.
Optionally, a control system is configured in the oil cooling device; the control system is configured to be used for performing on-off control, working state display, fault monitoring and data acquisition on the oil cooling device.
Optionally, the oil tank comprises a tank body, a top cover, an exhaust device and a connecting pipe; the top cover is arranged at the top of the box body; the exhaust device is positioned on the outer side wall of the box body; the top cover is connected with the exhaust device through a connecting pipe; the exhaust device is communicated with the inner cavity of the box body through the connecting pipe; the exhaust device is configured to keep the pressure inside and outside the box body consistent through exhaust and intake; the exhaust device is also used for dehumidifying and filtering the passing air.
Optionally, the fuel tank further comprises a top cover gasket positioned between the tank body and the top cover.
Optionally, the upper part of the inner cavity of the box body is sequentially provided with a drying filter box and a flow guide piece from bottom to top; the flow guide piece is used for uniformly settling the transformer oil entering the oil tank onto the drying and filtering box; the drying filter box is used for reducing the moisture content in the transformer oil; the dry filter cartridge is also used to reduce transformer oil speed.
The invention has the following beneficial effects:
1. the oil cooling device provided by the invention takes the transformer oil with high breakdown voltage as the heat carrier of the oil cooling system, and meanwhile, the insulating capability of the heat carrier is basically not reduced in the long-term operation of the system by configuring the filtering assembly, so that the system requirement of the radar transmitter is met.
2. The filtering device provided by the invention comprises a plurality of filters which are provided with stainless steel wire meshes and/or drying agents, so that mechanical impurities and/or trace moisture in transformer oil in the circulating process can be effectively filtered, and the insulating capability of a heat carrier is further ensured not to be reduced basically in long-term operation.
3. The oil cooling device provided by the invention cools the transformer oil through the water-oil heat exchange system, so that the cooling efficiency of the transformer oil is effectively improved, and the liquid supply pressure is reduced; meanwhile, the volume of the oil cooling device is smaller, the vehicle-mounted transportation condition is met, and the application occasions of the oil cooling device are enlarged.
4. The oil tank arranged in the oil cooling device can realize the functions of internal automatic exhaust, drying and filtering; meanwhile, the pressure inside and outside the box body can be kept consistent by exhausting and air intake, and the functions of keeping the pressure of the system unchanged and preventing the transformer oil from being degraded when the transformer oil expands with heat and contracts with cold under the influence of temperature are realized while the transformer oil running in the oil cooling system is stored.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic front structural view of a radar transmitting oil cooling device in an embodiment of the present invention.
Fig. 2 is a schematic back structure diagram of a radar transmitting engine oil cooling device in an embodiment of the invention.
Fig. 3 shows a schematic structural diagram of an oil tank of a radar transmitter oil cooling system in an embodiment of the invention.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details.
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
In the radar transmitter liquid cooling device in the prior art, glycol aqueous solution is used as a heat carrier, a liquid cooling pump pumps the filtered glycol aqueous solution to a heating electronic component, heating energy of the heating electronic component is taken out through forced convection heat exchange of liquid, and then the system heat energy is dissipated to the surrounding atmosphere through an air-water heat exchanger. However, with the development of radar transmitters, users also put new requirements on the liquid cooling system, namely, the breakdown voltage of the heat carrier provided by the liquid cooling system is required to be higher than 30kV, and the breakdown voltage of the glycol aqueous solution is lower than 10 kV; in addition, the heat carrier still needs to keep the insulating characteristic of heat carrier for a long time during the operation, and the volume weight of cooling device should also satisfy the transportation condition, and these all can not be satisfied with current liquid cooling system.
In order to solve the technical defects, the invention provides an oil cooling device for a radar transmitter, which comprises a cabinet 10, an oil tank 11, a filtering component 12, a cooling component 13 and a power component, wherein the oil tank 11, the filtering component 12, the cooling component 13 and the power component are arranged in the cabinet 10; wherein, the filtering component 12 is used for filtering impurities and moisture in the transformer oil; the cooling assembly 13 is used for cooling the transformer oil filtered by the filtering assembly; the cooling assembly 13 is connected to the external device to be cooled via a supply/return line 19. The power assembly is used for enabling the transformer oil in the oil tank 11 to sequentially flow into the filtering assembly 12 and the cooling assembly 13, then the power assembly conveys the filtered and cooled transformer oil to an external device to be cooled through the liquid supply and return pipeline 19 for heat exchange and cooling, and finally the power assembly enables the transformer oil subjected to heat exchange and cooling to flow back into the oil tank 11. Further preferably, the power assembly may be a liquid supply pump 15 disposed between the oil tank 11 and the filter assembly 12, and the liquid supply pump 15 is connected with an oil outlet of the oil tank 11 through a transmission pipeline 14. In a specific embodiment, the liquid supply pump is further provided with a check valve, so that the water hammer effect can be effectively prevented, and the pipeline can be prevented from being broken. In addition, the device to be cooled may be, for example, a tube or other electronic component requiring cooling.
In actual operation, before the oil cooling device is operated, a proper amount of transformer oil is filled into the oil tank 11, and then the oil cooling device is started. The transformer oil in the oil tank 11 enters a liquid supply pump 15 through an oil outlet, the liquid supply pump 15 pumps the transformer oil to a filter assembly 12, the filter assembly 12 separates impurities and moisture in the transformer oil from the transformer oil and conveys the filtered transformer oil to a cooling assembly 13, and the cooling assembly 13 cools the transformer oil flowing in and guides out system heat; the cooled transformer oil is conveyed to an external device to be cooled through the liquid supply and return pipeline 19 for heat exchange and cooling, and the cooled transformer oil takes away heat energy dissipated by the device to be cooled, so that the heat release temperature is reduced, and the heat absorption temperature of the transformer oil is increased. The heated transformer oil is returned to the oil tank 11 by the liquid feed pump 15. By adopting the oil cooling device of the embodiment, transformer oil with high breakdown voltage can be used as the heat carrier of the oil cooling system, and meanwhile, the heat carrier insulating capacity is kept not to be reduced basically in the long-term operation of the system by configuring the filtering assembly, so that the system requirement of the radar transmitter is met.
It should be understood by those skilled in the art that mechanical impurities and trace moisture may exist in the inner walls of the equipment and the pipeline in the oil cooling device, and during the circulation oil cooling process of the transformer oil on the device to be cooled, the mechanical impurities and trace moisture may be mixed into the transformer oil, so that the insulation property of the transformer oil is reduced due to the degradation of the transformer oil. Thus, in one embodiment, the filter assembly 12 includes at least several filters arranged in parallel; further, the filter comprises a stainless steel wire mesh and/or a drying agent. The stainless steel wire mesh can be made of stainless steel sintered wire mesh materials and can be used for filtering out mechanical impurities contained in transformer oil in the circulating process of the oil cooling system; the drying agent is used for filtering out trace moisture contained in the transformer oil in the circulating process of the oil cooling system. According to the embodiment, the transformer oil is circulated through the plurality of filters which are arranged in parallel, so that mechanical impurities and trace moisture in the transformer oil are filtered for many times, and the insulation capacity of the heat carrier is further ensured not to be reduced basically in the long-term operation process of the system.
In a specific embodiment, the cooling component cools the transformer oil by means of water-oil heat exchange. Specifically, the cooling assembly cools the transformer oil in a water-oil heat exchange mode through an external water cooling system. Compared with the technology of dissipating the heat energy of the system to the surrounding atmosphere through an air-water heat exchanger in the prior art, the implementation mode can enable the volume of the oil cooling device to be smaller, so that the whole oil cooling device can meet vehicle-mounted transportation conditions, and the application occasions of the oil cooling device are enlarged; in addition, compared with air and water heat exchange, the water-oil heat exchange mode adopted by the embodiment can greatly improve the cooling efficiency of the transformer oil, reduce the liquid supply pressure and save the cost. In addition, the oil cooling device also comprises a flow regulating loop 16; an inlet of the flow rate control circuit 16 is connected to an outlet of the liquid feed pump 15, and an outlet of the flow rate control circuit 16 is connected to an inlet of the liquid feed pump 15. The flow regulating circuit 16 is used for regulating the liquid supply flow and pressure of the oil cooling system according to the actual condition of the oil cooling device.
In another preferred embodiment, a control system is arranged in the oil cooling device; the control system is used for carrying out on-off control, working state display, fault monitoring and data acquisition on the oil cooling device. The control system comprises a liquid-cooled programmable automatic system 17 and a liquid crystal touch display screen 18, wherein the liquid-cooled programmable automatic system 17 has the functions of power on/off, system data acquisition and calculation analysis; the liquid crystal touch display screen 18 has the functions of local/remote control, system operation data and working state display, system parameter setting and fault display.
To achieve the object of the present invention, the present invention provides another preferred embodiment, in which, as shown in fig. 3, the fuel tank 11 includes a tank body 111, a top cover 112, a vent 113, and a connecting pipe 114; the top cover 112 is mounted on the top of the box body 111; the exhaust device 113 is positioned on the outer side wall of the box body 111; the top cover 112 is connected with the exhaust device 113 through a connecting pipe 114; the exhaust device 113 is communicated with the inner cavity of the box body 111 through the connecting pipe 114; the exhaust device is configured to keep the pressure inside and outside the box body consistent through exhaust and intake; the exhaust device is also used for dehumidifying and filtering the passing air. By adopting the preferable implementation mode, the consistency of the internal pressure and the external pressure of the oil tank body can be ensured through air exhaust and air intake, the functions of keeping the system pressure unchanged and preventing the transformer oil from being degraded when the transformer oil is affected by temperature and expands with heat and contracts with cold are realized while the transformer oil running in the oil cooling system is stored, and the oil tank of the radar transmitter oil cooling system is simple in structure, convenient to use and high in reliability.
Before the oil cooling system operates, a proper amount of transformer oil is filled into the oil tank 11 of the oil cooling device. When the oil cooling system works normally, the transformer oil in the oil tank 11 enters the liquid supply pump 15 through the oil outlet. Meanwhile, the transformer oil which completes heat exchange with the electronic component to be cooled enters the oil tank 11 through the oil inlet, and the liquid level of the transformer oil in the oil tank 11 is kept in a stable state. When the temperature of the transformer oil rises and the volume of the transformer oil increases, the air pressure at the upper part of the box body 111 rises, and the air with the pressure greater than the external atmospheric pressure overcomes the resistance of the exhaust device 113 and is exhausted out of the oil tank 11 to the atmosphere until the air pressure inside and outside the oil tank 11 is basically consistent; when the temperature of the transformer oil decreases and the volume thereof decreases, the air pressure at the upper part of the tank body 11 decreases, and the air with the pressure less than the external atmospheric pressure enters the oil tank 11 by overcoming the resistance of the air discharging device 113 until the air pressure inside and outside the oil tank 11 is basically consistent. In addition, the exhaust device 113 has dehumidification and filtration functions, and when air enters and exits through the exhaust device 113, the air is absorbed and filtered, so that the air entering the oil tank 11 is ensured to be dry and clean, the transformer oil in the oil cooling system is prevented from being degraded, and the insulation characteristic of the transformer oil is prevented from being reduced.
Optionally, in order to prevent the transformer oil from splashing out, the oil tank 11 of the oil cooling device provided by the invention further comprises a top cover gasket 115 positioned between the tank body 111 and the top cover 112. The top cap gasket 115 is used to prevent the oil of the transformer from splashing out and prevent the air in the upper part of the inner cavity of the tank 111 from communicating with the external environment through the interface between the top cap 112 and the tank 111, but only through the exhaust device 114 connected to the top cap 112 through the connection pipe 113.
Furthermore, a drying filter box 116 and a flow guide piece 117 are sequentially arranged on the upper part of the inner cavity of the box body 111 from bottom to top; the flow guide 117 is used for uniformly depositing the transformer oil entering the oil tank 11 onto the dry filter box 116; the drying filter box is used for reducing the moisture content in the transformer oil; the dry filter cartridge is also used to reduce transformer oil speed.
Firstly, the transformer oil entering the oil tank 11 is sprayed onto the flow guide 117, and the transformer oil is uniformly deposited on the drying and filtering box 116 through the flow guide 117; meanwhile, the drying and filtering box 116 has moisture absorption and filtering capabilities, the moisture content in the transformer oil can be reduced, the transformer oil is prevented from being degraded, the flowing speed of the transformer oil passing through the drying and filtering box 116 is reduced, the whole cross section of the transformer oil uniformly falls into the oil tank 11, the generation of bubbles of the transformer oil is avoided, and the insulation characteristic of the transformer oil is maintained.
Optionally, the oil tank of the oil cooling system of the radar transmitter provided by the invention further comprises an indicator plate sealing gasket 1111, a transparent indicator plate 1112 and an indicator plate pressing plate 1113. And one side of the box body, which is far away from the exhaust device 113, is sequentially provided with an indicating plate sealing gasket 1111, a transparent indicating plate 1112 and an indicating plate pressing plate 1113 from inside to outside. The transparent indicator plate 1112 is used to indicate the level of transformer oil. The indicator board pressure plate 1113 is marked with scales. The liquid level in the oil tank can be seen through the transparent indicating plate 1112, and the volume of the transformer oil in the oil tank can be known and the transformer oil can be filled in time by comparing with the scales marked on the indicating plate pressure plate 1113.
Further, the oil tank of the oil cooling system of the radar transmitter provided by the invention further comprises a filling joint 1131 and a ring nut 1132. The upper part of the side of the box body 111 where the exhaust device 113 is installed is provided with a filling opening, and the filling opening is sequentially provided with a filling joint 1131 and a ring nut 1132 from inside to outside. Filling joint 1131 is connected with radar transmitter oil cooling system oil tank 11 through ring nut 1132 for outside filling equipment accessible filler neck is to filling transformer oil in the radar transmitter oil cooling system oil tank.
The filling port arranged at the upper part of one side of the oil tank is usually sealed, when transformer oil needs to be filled into the oil tank, the filling joint 1131 is installed on the oil tank 11 through the ring nut 1132, external filling equipment can be conveniently connected, and the transformer oil is filled into the oil tank through the filling port.
Optionally, the oil tank 11 of the oil cooling system of the radar transmitter provided by the invention further comprises a liquid level sensor 118. The liquid level sensor 118 is located below the exhaust device 113, and the distance from the liquid level sensor 118 to the lower side of the box body 111 is greater than a preset distance. The liquid level sensor is used for outputting a low liquid level signal to alarm when the liquid level of the transformer oil drops to reach a low liquid level point;
in addition, the oil tank of the oil cooling system of the radar transmitter further comprises a drain valve 119. A drain valve 119 is installed at the bottom of the case 111. The drain valve is used for discharging transformer oil and replacing an oil cooling system medium.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (10)
1. An oil cooling device of a radar transmitter, which comprises a cabinet and is characterized in that,
the oil cooling device also comprises an oil tank, a filtering component, a cooling component and a power component which are arranged in the cabinet;
the filtering component is used for filtering impurities and/or moisture in the transformer oil;
the cooling assembly is used for cooling the filtered transformer oil;
the power assembly is used for enabling the transformer oil in the oil tank to sequentially flow into the filtering assembly and the cooling assembly, conveying the cooled transformer oil to an external device to be cooled for heat exchange and cooling, and enabling the transformer oil subjected to heat exchange and cooling to flow back to the oil tank.
2. An oil cooling device as claimed in claim 1, wherein the power assembly is a fluid supply pump disposed between the oil tank and the filter assembly.
3. The oil cooling device of claim 1, wherein the filter assembly comprises a plurality of filters arranged in parallel.
4. An oil cooling device as claimed in claim 3 wherein the filter includes a stainless steel mesh and/or desiccant.
5. The oil cooling device of claim 1, wherein the cooling assembly cools the transformer oil by means of water-oil heat exchange.
6. The oil cooling device of claim 2,
the oil cooling device also comprises a flow regulating loop;
and the inlet of the flow regulating loop is connected with the outlet of the liquid supply pump, and the outlet of the flow regulating loop is connected with the inlet of the liquid supply pump.
7. The oil cooling device of claim 1, wherein a control system is configured in the oil cooling device;
the control system is configured to be used for performing on-off control, working state display, fault monitoring and data acquisition on the oil cooling device.
8. The oil cooling device of claim 1, wherein the oil tank comprises a tank body, a top cover, an exhaust device and a connecting pipe;
the top cover is arranged at the top of the box body;
the exhaust device is positioned on the outer side wall of the box body;
the top cover is connected with the exhaust device through a connecting pipe;
the exhaust device is communicated with the inner cavity of the box body through the connecting pipe;
the exhaust device is configured to keep the pressure inside and outside the box body consistent through exhaust and intake;
the exhaust device is also used for dehumidifying and filtering the passing air.
9. An oil cooling device as claimed in claim 5 wherein the oil tank further comprises a top cover gasket positioned between the tank and the top cover.
10. The oil cooling device of claim 5,
the upper part of the inner cavity of the box body is sequentially provided with a drying filter box and a flow guide piece from bottom to top;
the flow guide piece is used for uniformly settling the transformer oil entering the oil tank onto the drying and filtering box;
the drying filter box is used for reducing the moisture content in the transformer oil;
the dry filter cartridge is also used to reduce transformer oil speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337550.1A CN111031762A (en) | 2019-12-23 | 2019-12-23 | Oil cooling device of radar transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337550.1A CN111031762A (en) | 2019-12-23 | 2019-12-23 | Oil cooling device of radar transmitter |
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| Publication Number | Publication Date |
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| CN111031762A true CN111031762A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911337550.1A Pending CN111031762A (en) | 2019-12-23 | 2019-12-23 | Oil cooling device of radar transmitter |
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| CN (1) | CN111031762A (en) |
Cited By (1)
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| CN113931999A (en) * | 2021-10-12 | 2022-01-14 | 安徽仁信电子工程有限公司 | Shore-based radar speed reducer and radar thereof |
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Application publication date: 20200417 |