CN107268415B - Heat conduction oil circulation system using microwave magnetron heating as heat source - Google Patents
Heat conduction oil circulation system using microwave magnetron heating as heat source Download PDFInfo
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- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Abstract
The invention discloses a heat conduction oil circulating system using microwave magnetron heating as a heat source, which comprises a microwave heating wall, a plurality of stop valves, an electric heating heat conduction oil furnace, a heat conduction oil pump, a heat insulation material bin, a regenerant box and a radiator. The heat conducting oil circulating system which utilizes the heat generated by the microwave magnetron as the heat source skillfully utilizes the heat generated by the microwave generation magnetron, and utilizes the heat conducting oil as the heat source to realize the circulating heating of the heat conducting oil, thereby not only realizing the heating and heat preservation of the asphalt mixture in the heat preservation bin, but also realizing the heating of the regenerant or hot asphalt in the regenerant tank, and simultaneously cooling the microwave generation magnetron, improving the working stability of the microwave generation magnetron, realizing the complementary advantages of the heating and the cooling, and achieving the purposes of saving energy and reducing consumption; meanwhile, the electric heating heat conduction oil furnace is used as a heat source and is connected in parallel with the microwave magnetron to be used as the heat source, so that the heating efficiency of the system is improved, and the working condition adaptability is high.
Description
Technical Field
The invention relates to a heat conduction oil circulation system using microwave magnetron heating as a heat source, in particular to a heat conduction oil circulation system using microwave magnetron heating as a heat source on a microwave in-situ heat regeneration train, belonging to the field of road maintenance equipment.
Background
In the in-situ heat regeneration construction process, a microwave heating wall is an important part of a pavement heater and is used for heating and softening an asphalt pavement, a core part microwave generation magnetron of the microwave heating wall is used for generating high-frequency electromagnetic waves, very high temperature (up to 800 ℃) can be generated during operation, the heat generated by the microwave generation magnetron cannot be utilized by the conventional device, and a large amount of heat energy is wasted; and the microwave generation magnetron is easy to generate heat and damage, the air cooling or water cooling heat dissipation mode is mostly adopted at present, the air cooling mode has the problems of difficult air duct design and processing and poor cooling performance, and the water cooling mode has the defects of easy icing and pipeline blockage, poor environmental adaptability and the like in extreme weather in winter, so that the microwave generation magnetron is unstable in work.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a heat conduction oil circulating system which utilizes the heat generated by a microwave magnetron as a heat source, skillfully utilizes the heat generated by the microwave generation magnetron during working, utilizes the heat conduction oil to realize heat conduction oil circulating heating for the heat source, realizes the heating and heat preservation of an asphalt mixture in a heat preservation bin, also realizes the heating of a regenerant or hot asphalt in a regenerant box, simultaneously implements cooling on the microwave generation magnetron, improves the working stability of the microwave generation magnetron, realizes the complementary advantages of heating and cooling, and achieves the purposes of saving energy and reducing consumption; meanwhile, the electric heating heat conduction oil furnace is used as a heat source and is connected in parallel with the microwave magnetron to be used as the heat source, so that the heating efficiency of the system is improved, and the working condition adaptability is high.
In order to achieve the purpose, the invention adopts the technical scheme that:
a heat conduction oil circulation system using microwave magnetron heating as a heat source is characterized in that: the device comprises a microwave heating wall and an electric heating heat conduction oil furnace which are arranged in parallel and can heat conduction oil, wherein a stop valve I and a stop valve II are respectively arranged on a heat conduction oil outlet pipeline of the microwave heating wall and the electric heating heat conduction oil furnace and are connected with an inlet of a heat conduction oil pump through the stop valve I and the stop valve II, and an outlet of the heat conduction oil pump is respectively connected with inlets of a stop valve III, a stop valve IV and a stop valve V;
outlets of the stop valve III and the stop valve IV are respectively connected to one port of a heat conduction oil circulation pipeline of the heat insulation bin in the heat insulation bin and one port of a regenerant heat conduction oil circulation pipeline in the regenerant box, and an outlet of the stop valve V is connected with the other port of the heat conduction oil circulation pipeline of the heat insulation bin in the heat insulation bin and the other port of the regenerant heat conduction oil circulation pipeline in the regenerant box;
the other port of the heat-conducting oil circulation pipeline of the heat-insulating storage bin in the heat-insulating storage bin and the other port of the regenerant heat-conducting oil circulation pipeline in the regenerant box are simultaneously connected to an oil inlet of the radiator, and an oil outlet of the radiator is connected with the microwave heating wall and the electric heating heat-conducting oil furnace which are arranged in parallel through pipelines.
The microwave heating wall is provided with a plurality of groups of microwave generation magnetrons which are arranged in a certain array mode, a heat dissipation sleeve, a liquid inlet pipe and a liquid outlet pipe which are communicated with the heat dissipation sleeve;
a heat dissipation sleeve in interference fit is sleeved outside the built-in vacuum tube of each microwave generation magnetron; the liquid inlet pipe and the liquid outlet pipe connected with each heat dissipation sleeve are staggered, and the liquid inlet pipe and the liquid outlet pipe on each heat dissipation sleeve are sequentially communicated to form a series channel.
The microwave heating wall comprises a microwave generation magnetron, and heat generated by the microwave generation magnetron is used as a heat source to heat the heat conducting oil.
The electric heating heat conduction oil furnace comprises an electric heating rod and a heat conduction oil groove surrounding the electric heating rod, and heat conduction oil in the heat conduction oil groove is heated by the electric heating rod.
And a temperature sensor II for detecting the return oil temperature of the heat-conducting oil is arranged on a connecting pipeline of the radiator, the microwave heating wall and the electric heating heat-conducting oil furnace which are arranged in parallel.
The radiator is internally provided with a plurality of radiating pipe pieces for radiating the contained heat conduction oil, and the periphery of the radiating pipe pieces is provided with a radiating fan for cooling the radiating pipe pieces.
The device also comprises a heat-conducting oil expansion tank which is communicated with the electric heating heat-conducting oil furnace to provide a heat-conducting oil expansion space. The heat conducting oil expansion tank is provided with an oil filling port, a safety warning valve, a liquid level meter for indicating the liquid level height of the heat conducting oil inside and an oil drain valve.
And an exhaust valve is arranged at the top of the heat conducting oil circulating pipeline of the heat insulation bin and/or the heat conducting oil circulating pipeline of the regenerant.
The stop valve I and the stop valve II are connected with an inlet of the heat conduction oil pump through a main stop valve.
A temperature sensor I and a pressure gauge are also arranged on a main pipeline connecting the main stop valve and the heat conduction oil pump;
the inlet of the heat-conducting oil pump is also provided with a filter.
The invention has the beneficial effects that: the heat conducting oil circulation system which utilizes the heat generated by the microwave magnetron as the heat source is provided, the heat generated by the microwave generation magnetron during working is utilized skillfully, and the heat conducting oil circulation heating is realized by utilizing the heat conducting oil circulation system as the heat source, so that the heating and heat preservation of asphalt mixture in a heat preservation bin are realized, the heating of regenerant or hot asphalt in a regenerant tank is realized, the cooling of the microwave generation magnetron is realized, the working stability of the microwave generation magnetron is improved, the complementary advantages of heating and cooling are realized, and the purposes of energy conservation and consumption reduction are achieved; meanwhile, an electric heating heat conduction oil furnace is used as a heat source and is connected in parallel with a microwave magnetron to be used as the heat source, so that the heating efficiency of the system is improved, and the working condition adaptability is strong.
Drawings
FIG. 1 is a schematic diagram of the present invention;
in the figure: 1. the microwave heating wall comprises 1-1 parts of a microwave generation magnetron, 1-2 parts of a heat dissipation sleeve, 1-3 parts of a liquid inlet pipe, 1-4 parts of a liquid outlet pipe, 2 parts of a stop valve I, 3 parts of an electric heating heat conduction oil furnace, 3-1 parts of an electric heating rod, 3-2 parts of a heat conduction oil groove, 4 parts of a stop valve II, 5 parts of a main stop valve, 6 parts of a filter, 7 parts of a heat conduction oil pump, 8 parts of a temperature sensor I, 9 parts of a pressure gauge, 10 parts of a stop valve III, 11 parts of a heat insulation bin, 11-1 parts of a heat conduction oil circulation pipeline of the heat insulation bin, 11-2 parts of an exhaust valve I, 12 parts of a stop valve IV, 13 parts of a regenerant box, 13-1 parts of a regenerant heat conduction oil circulation pipeline, 13-2 parts of an exhaust valve II, 14 parts of an exhaust valve V, 14-1 parts of a peripheral pipeline, 15 parts of a radiator, 15-1 parts of a heat dissipation duct piece, 15-2 parts of a heat dissipation fan, 15-3 parts of an oil drain valve I, 16 parts of a temperature sensor II, 17 parts of a temperature sensor, 17 parts of a heat conduction oil expansion tank, 17-1 parts of a heat conduction oil filling port, 17-2 parts of a safety valve, 17-3 parts of a safety warning valve, a liquid level gauge II-3 parts of a liquid level meter, 17-4 parts of a liquid level meter and 5 parts of a liquid level meter.
Detailed Description
The invention is described below with reference to the accompanying drawings and examples.
As shown in a schematic diagram of fig. 1, the heat conduction oil circulation system using microwave magnetron heating as a heat source comprises a microwave heating wall 1, a stop valve I2, an electric heating heat conduction oil furnace 3, a stop valve II 4, a main stop valve 5, a filter 6, a heat conduction oil pump 7, a temperature sensor I8, a pressure gauge 9, a stop valve III 10, a heat insulation bin 11, a stop valve IV 12, a regenerant tank 13, a stop valve V14, a radiator 15, a temperature sensor II 16 and a heat conduction oil expansion tank 17.
The microwave heating wall 1 is provided with a plurality of groups of microwave generation magnetrons 1-1 which are arranged according to a certain array mode, liquid cooling type magnetrons are adopted, cooling media are heat conduction oil, a heat dissipation sleeve 1-2 is in interference fit with built-in vacuum tubes of the microwave generation magnetrons 1-1, a liquid inlet tube 1-3 and a liquid outlet tube 1-4 are staggered up and down and left and right, low-temperature cooling media enter through tubes with low liquid levels, and high-temperature cooling media flow out through tubes with high liquid levels to form a series cooling pipeline.
The electric heating heat conduction oil furnace 3 is connected with the microwave heating wall 1 in a parallel connection mode, is a heating heat source of the heat conduction oil circulation heating system, is controlled by the stop valve II 4 and the stop valve I2 respectively, a heat conduction oil groove 3-2 surrounding the electric heating rod 3-1 is arranged inside the electric heating heat conduction oil furnace 3, and heat conduction oil in the heat conduction oil groove 3-2 is heated by the electric heating rod 3-1.
The heat-insulation recycling device is characterized in that the stop valve III 10 is connected with a heat-insulation stock bin 11, the stop valve IV 12 is connected with a regenerant box 13 and is respectively communicated with a peripheral pipeline 14-1 of the stop valve V14 to form a parallel circulation pipeline, a heat-insulation stock bin heat-conduction oil circulation pipeline 11-1 is arranged inside the heat-insulation stock bin 11, an exhaust valve I11-2 is arranged at the top of the heat-insulation stock bin heat-conduction oil circulation pipeline 11-1, a regenerant heat-conduction oil circulation pipeline 13-1 is arranged inside the regenerant box 13, an exhaust valve II 13-2 is arranged at the top of the regenerant heat-conduction oil circulation pipeline 13-1, and the parallel circulation pipeline is connected with an oil inlet of a radiator 15 through the peripheral pipeline 14-1.
A plurality of groups of radiating pipe pieces 15-1 are arranged in the radiator 15, a radiating fan 15-2 is arranged on the periphery of the radiator, an oil drain valve I15-3 is arranged at the bottom of the radiator, and an oil outlet of the radiator 15 is respectively connected with the microwave heating wall 1 and the electric heating heat conduction oil furnace 3.
The main pipeline of the heat conduction oil circulating system using the heat generated by the microwave magnetron as a heat source is provided with a main stop valve 5, a filter 6, a heat conduction oil pump 7, a temperature sensor I8, a pressure gauge 9, a temperature sensor II 16 and a heat conduction oil expansion tank 17;
the heat conducting oil expansion tank 17 is provided with an oil filling port 17-1, a safety warning valve 17-2, a liquid level meter 17-3, an oil drain valve II 17-4 and an oil drain valve III17-5. The heat conduction oil temperature in the electric heating heat conduction oil furnace (3) rises and expands, so that the heat conduction oil expansion tank 17 is communicated, and the purpose of arranging the heat conduction oil expansion tank is to provide a heat conduction oil expansion space and prevent safety accidents caused by the leakage of heat conduction oil. The heat conducting oil expands after being heated, the liquid level rises, and a safety warning valve is arranged on the heat conducting oil expansion tank 17 for preventing the overflow tank from overflowing so as to alarm the high liquid level.
In order to utilize heat generated by the microwave generation magnetron during working, the core component microwave generation magnetron 1-1 of the microwave heating wall 1 has the working heating temperature as high as 800 ℃, the heat generated by the microwave generation magnetron 1-1 is used as a heat source, and the heat conduction oil is circulated by the heat conduction oil pump 7, so that the heating and heat preservation of the asphalt mixture in the heat preservation storage bin 11 can be realized, the heating of the regenerant or hot asphalt in the regenerant box 13 can be realized, the cooling of the microwave generation magnetron 1-1 is implemented, and the working stability of the microwave generation magnetron 1-1 is improved.
When the microwave heating wall 1 does not work, the electric heating heat conduction oil furnace 3 uses the electric heating rod 3-1 to heat the heat conduction oil as a heat source, and the heat conduction oil is circulated through the heat conduction oil pump 7, so that the heating and heat preservation of the asphalt mixture in the heat preservation bin 11 can be realized, and the heating of the regenerant or the hot asphalt in the regenerant box 13 can be realized.
And a temperature sensor II 16 is arranged between the radiator 15 and the microwave heating wall 1 and used for detecting the return oil temperature of the heat conduction oil, when the return oil temperature of the heat conduction oil is higher than 250 ℃, a heat radiation fan 15-2 is started, and the heat conduction oil is cooled through a heat radiation pipe piece 15-1, so that the microwave generation magnetron 1-1 can obtain good cooling and heat radiation and has good working stability.
A working process of a heat conduction oil circulation system using microwave magnetron heating as a heat source is introduced according to working conditions:
the working condition I is as follows: the microwave generation magnetron 1-1 of the microwave heating wall 1 works to generate heat as a heat source to heat the medium in the heat insulation bin 11 or the regenerant box 13, and the operation steps are as follows:
1) Opening a stop valve I2, a main stop valve 5 and a stop valve V14, closing a stop valve II 4, a stop valve III 10 and a stop valve IV 12, starting a heat-conducting oil pump 7, realizing circulating flow of heat-conducting oil, and displaying the pressure of a heat-conducting oil pipeline in real time by a pressure gauge 9;
2) The microwave heating wall 1 heats an asphalt pavement, the microwave generation magnetron 1-1 works to generate heat to realize heat conduction oil heating, the temperature sensor I8 monitors the temperature of heat conduction oil in real time, when the temperature of the heat conduction oil reaches a set temperature value, the stop valve V14 is closed, the heating of media in the heat insulation bin 11 and the regenerant box 13 is realized by opening the stop valve III 10 and the stop valve IV 12, and meanwhile, the cooling of the microwave generation magnetron 1-1 is realized; the heat conduction oil flows out of a heat conduction oil circulation pipeline 11-1 of the heat insulation bin and a heat conduction oil circulation pipeline 13-1 of the regenerant tank 13 into a radiator 15 and flows back to the microwave heating wall 1 through the radiator 15;
3) The temperature sensor II 16 monitors the oil return temperature of the heat conduction oil in real time, when the oil return temperature of the heat conduction oil is higher than 250 ℃, the heat radiation fan 15-2 is started, the heat conduction oil is cooled through the heat radiation pipe piece 15-1, and the microwave generation magnetron 1-1 is ensured to obtain a good cooling and heat radiation effect.
Working conditions are as follows: the method comprises the following steps of using an electric heating heat conduction oil furnace 3 as a heat source to heat a medium in a heat insulation bin 11 or a regenerant box 13, and operating the following steps:
1) Opening a stop valve II 4, a main stop valve 5 and a stop valve V14, closing a stop valve I2, a stop valve III 10 and a stop valve IV 12, starting a heat-conducting oil pump 7, realizing circulating flow of heat-conducting oil, and displaying the pressure of a heat-conducting oil pipeline in real time by a pressure gauge 9;
2) The electric heating rod 3-1 of the electric heating heat conduction oil furnace 3 is opened to realize heat conduction oil heating, the temperature sensor I8 monitors the temperature of the heat conduction oil in real time, when the temperature of the heat conduction oil reaches a set temperature value, the stop valve V14 is closed, and the heating of media in the heat insulation stock bin 11 and the regenerant box 13 is realized by opening the stop valve III 10 and the stop valve IV 12 respectively.
After the media in the heat preservation bin 11 and the regenerant box 13 are heated, the heat conduction oil flows into the radiator 15 and flows back to the electric heating heat conduction oil furnace 3 through the radiator 15.
Working conditions are as follows: the method comprises the following steps of heating a medium in a heat-insulating bin 11 or a regenerant box 13 by utilizing a microwave generation magnetron 1-1 of a microwave heating wall 1 to work to generate heat and an electric heating heat conduction oil furnace 3, wherein the operation steps are as follows:
1) Opening a stop valve I2, a stop valve II 4, a main stop valve 5 and a stop valve V14, closing a stop valve III 10 and a stop valve IV 12, starting a heat conduction oil pump 7, realizing the circulation flow of heat conduction oil, and displaying the pressure of a heat conduction oil pipeline in real time by a pressure gauge 9;
2) The method comprises the following steps that a microwave heating wall 1 heats an asphalt pavement, a magnetron 1-1 works to generate heat to achieve heat conduction oil heating through microwaves, an electric heating rod 3-1 of an electric heating heat conduction oil furnace 3 is opened to achieve heat conduction oil heating, a temperature sensor I8 monitors the temperature of heat conduction oil in real time, a stop valve V14 is closed when the temperature of the heat conduction oil reaches a set temperature value, and media in a heat insulation material bin 11 and a regenerant box 13 are heated by opening a stop valve III 10 and a stop valve IV 12 respectively; the heat conduction oil flows out of a heat conduction oil circulation pipeline 11-1 of the heat insulation bin and a heat conduction oil circulation pipeline 13-1 of the regenerant box 11 and enters a radiator 15, and flows back to the microwave heating wall 1 and the electric heating heat conduction oil furnace 3 through the radiator 15;
3) The temperature sensor II 16 monitors the oil return temperature of the heat conduction oil in real time, when the oil return temperature of the heat conduction oil is higher than 250 ℃, the heat radiation fan 15-2 is started, the heat conduction oil is cooled through the heat radiation pipe piece 15-1, and the microwave generation magnetron 1-1 is ensured to obtain a good cooling and heat radiation effect.
The heat-conducting oil circulating system which utilizes the heat generated by the microwave magnetron as the heat source skillfully utilizes the heat generated by the work of the microwave generation magnetron, and utilizes the heat-conducting oil as the heat source to realize the circulating heating of the heat-conducting oil, thereby not only realizing the heating and heat preservation of the asphalt mixture in the heat-preservation storage bin, but also realizing the heating of the regenerant or hot asphalt in the regenerant tank, and simultaneously cooling the microwave generation magnetron, improving the work stability of the microwave generation magnetron, realizing the advantage complementation of the heating and the cooling, and achieving the purposes of saving energy and reducing consumption; meanwhile, an electric heating heat conduction oil furnace is used as a heat source and is connected in parallel with a microwave magnetron to be used as the heat source, so that the heating efficiency of the system is improved, and the working condition adaptability is strong.
Claims (10)
1. A heat conduction oil circulation system using microwave magnetron heating as a heat source is characterized in that: the microwave heating device comprises a microwave heating wall (1) and an electric heating heat conduction oil furnace (3) which are arranged in parallel and can heat conduction oil, wherein a stop valve I (2) and a stop valve II (4) are respectively arranged on a conduction oil outlet pipeline of the microwave heating wall (1) and the electric heating heat conduction oil furnace (3), the stop valves I (2) and II (4) are connected with an inlet of a conduction oil pump (7) through the stop valves I (2) and II (4), and an outlet of the conduction oil pump (7) is respectively connected with inlets of a stop valve III (10), a stop valve IV (12) and a stop valve V (14);
outlets of a stop valve III (10) and a stop valve IV (12) are respectively connected to one port of a heat-conducting oil circulation pipeline (11-1) of the heat-insulating storage bin in the heat-insulating storage bin (11) and one port of a regenerant heat-conducting oil circulation pipeline (13-1) in the regenerant box (13), and an outlet of a stop valve V (14) is connected with the other port of the heat-conducting oil circulation pipeline (11-1) of the heat-insulating storage bin in the heat-insulating storage bin (11) and the other port of the regenerant heat-conducting oil circulation pipeline (13-1) in the regenerant box (13);
the other port of the heat-conducting oil circulation pipeline (11-1) of the heat-insulating storage bin in the heat-insulating storage bin (11) and the other port of the heat-conducting oil circulation pipeline (13-1) of the regenerant in the regenerant box (13) are simultaneously connected to an oil inlet of a radiator (15), and an oil outlet of the radiator (15) is connected with a microwave heating wall (1) and an electric heating heat-conducting oil furnace (3) which are arranged in parallel through pipelines.
2. The heat transfer oil circulation system using microwave magnetron heating as a heat source according to claim 1, characterized in that: the microwave heating wall (1) is provided with a plurality of groups of microwave generation magnetrons (1-1) arranged in an array mode, a heat dissipation sleeve (1-2), a liquid inlet pipe (1-3) and a liquid outlet pipe (1-4) which are communicated with the heat dissipation sleeve (1-2);
a heat dissipation sleeve (1-2) in interference fit is sleeved outside the built-in vacuum tube of each microwave generation magnetron (1-1); the liquid inlet pipe (1-3) and the liquid outlet pipe (1-4) connected with each heat dissipation sleeve (1-2) are staggered, and the liquid inlet pipe (1-3) and the liquid outlet pipe (1-4) on each heat dissipation sleeve (1-2) are communicated in sequence to form a series channel.
3. The heat transfer oil circulation system using microwave magnetron heating as a heat source according to claim 1, characterized in that: the microwave heating wall (1) comprises a microwave generation magnetron (1-1), and heat generated by the work of the microwave generation magnetron (1-1) is used as a heat source to heat the heat conduction oil.
4. The heat transfer oil circulation system using microwave magnetron heating as a heat source according to claim 1, characterized in that: the electric heating heat conduction oil furnace (3) comprises an electric heating rod (3-1) and a heat conduction oil groove (3-2) surrounding the electric heating rod (3-1), and heat conduction oil in the heat conduction oil groove (3-2) is heated by the electric heating rod (3-1).
5. The heat transfer oil circulation system using microwave magnetron heating as a heat source according to claim 1, characterized in that: a temperature sensor II (16) for detecting the return oil temperature of the heat-conducting oil is arranged on a connecting pipeline of the radiator (15) and the microwave heating wall (1) and the electric heating heat-conducting oil furnace (3) which are arranged in parallel.
6. The heat transfer oil circulation system using microwave magnetron heating as a heat source according to claim 1, characterized in that: the heat radiator (15) is internally provided with a plurality of heat radiating pipe pieces (15-1) for radiating the contained heat conducting oil, and the periphery of the heat radiator is provided with a heat radiating fan (15-2) for cooling the heat radiating pipe pieces (15-1).
7. The heat transfer oil circulation system using microwave magnetron heating as a heat source according to claim 1, characterized in that: the device also comprises a heat-conducting oil expansion tank (17) which is communicated with the electric heating heat-conducting oil furnace (3) to provide a heat-conducting oil expansion space.
8. The heat transfer oil circulation system using microwave magnetron heating as a heat source according to claim 1, characterized in that: an exhaust valve is arranged at the top of the heat conducting oil circulating pipeline (11-1) of the heat insulation bin and/or the heat conducting oil circulating pipeline (13-1) of the regenerant.
9. The heat transfer oil circulation system using microwave magnetron heating as a heat source according to claim 1, characterized in that: the stop valve I (2) and the stop valve II (4) are connected with an inlet of the heat conduction oil pump (7) through a main stop valve (5).
10. The heat transfer oil circulation system using microwave magnetron heating as a heat source according to claim 9, wherein: a temperature sensor I (8) and a pressure gauge (9) are also arranged on a main pipeline connecting the main stop valve (5) and the heat-conducting oil pump (7);
a filter (6) is also arranged at the inlet of the heat-conducting oil pump (7).
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| CN107675581A (en) * | 2017-10-26 | 2018-02-09 | 江苏集萃道路工程技术与装备研究所有限公司 | A kind of hot in-plant reclaimed asphalt mixture production equipment and process |
| CN107858892A (en) * | 2017-10-26 | 2018-03-30 | 江苏集萃道路工程技术与装备研究所有限公司 | The pitch hot-mix plant recycling equipment and technique of a kind of hot wind and microwave composition heating type |
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| US5257876A (en) * | 1990-11-29 | 1993-11-02 | Mitsubishi Yuka Industrial Products Corporation | Method for constructing asphalted road having heating pipe laid thereunder |
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Denomination of invention: A Heat Transfer Oil Circulating System Using Microwave Magnetron as Heat Source Effective date of registration: 20221227 Granted publication date: 20221125 Pledgee: Bank of Jiangsu Co.,Ltd. Xuzhou Economic Development Zone sub branch Pledgor: JIANGSU JITRI ROAD ENGINEERING TECHNOLOGY AND EQUIPMENT RESEARCH INSTITUTE Co.,Ltd. Registration number: Y2022980029185 |
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