CN214459358U

CN214459358U - Heat conduction oil circulation asphalt heating device

Info

Publication number: CN214459358U
Application number: CN202022966105.6U
Authority: CN
Inventors: 韦栋栋; 张虎; 陈衔远; 魏智强; 李竹
Original assignee: Dagang Holding Group Co ltd
Current assignee: Dagang Holding Group Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-10-22
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a conduction oil circulation pitch heating device, the charge door, the asphalt pump, the top at the asphalt box is established to the conduction oil expansion tank, asphalt box lateral wall is provided with combustor and conduction oil thermoscope, the asphalt pump is provided with the pitch heat preservation cover outward, the heat preservation covers and is equipped with out the tobacco pipe, the conduction oil heater in the asphalt box includes bilayer structure's firetube, tobacco pipe and conduction oil coil pipe, horizontally firetube one end links to each other with vertical upward tobacco pipe, the firetube communicates with each other with the inlayer cavity of tobacco pipe, the firetube communicates with each other with the cavity on the ectonexine of tobacco pipe and forms the conduction oil passageway, the inside conduction oil that is equipped with of conduction oil passageway end, the inlayer of the firetube other end links to each other with the combustor, the inlayer of the other end of tobacco pipe communicates with each other with the heat preservation cover, the both ends of conduction oil passageway communicate with each other through the conduction oil coil pipe, the conduction oil expansion tank communicates with each other with the conduction oil coil pipe. The utility model discloses utilize the surplus heat of flue gas to heat the pitch pump, prevent the pitch card pump, both improved the utilization ratio of the energy, prolonged the availability factor of pitch pump again.

Description

Heat conduction oil circulation asphalt heating device

Technical Field

The utility model relates to a device or equipment technical field that new road and the road surface of having accomplished maintained, in particular to conduction oil circulation pitch heating device.

Background

With the rapid development of highway construction in China and the approach of the maintenance period of the constructed roads, various asphalt pavements inevitably have diseases such as congestion, rutting, flooding, pit grooves, network cracks and the like, and asphalt is widely used in the maintenance, repair and modification processes of the asphalt pavements. Asphalt is usually solid at low temperature or normal temperature, and when the asphalt needs to be used, the asphalt needs to be heated and liquefied, and then construction is carried out. How to heat and liquefy quickly and at high speed and then carry out construction. How to heat the asphalt quickly and efficiently to liquefy the asphalt quickly is very important.

The existing asphalt box heating mode is mainly heat conduction oil bottom heating, and heat conduction oil circulation is realized through a heat conduction oil pump, so that the mode has the defects of low heat energy utilization rate and high energy consumption.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: large energy consumption and low heat energy utilization rate.

The technical solution of the utility model is that: a heat-conducting oil circulation asphalt heating device comprises an asphalt box, a charging hole, a heat-conducting oil expansion tank and an asphalt pump;

the asphalt box is filled with asphalt, the charging port, the asphalt pump and the heat-conducting oil expansion tank are arranged at the top of the asphalt box, and the side wall of the asphalt box is provided with a burner and a heat-conducting oil temperature detector;

a heat-insulating cover is arranged outside the asphalt pump, and a smoke outlet pipe is arranged on the heat-insulating cover;

a heat conduction oil heater is arranged in the asphalt box, and comprises a fire tube, a smoke tube and a heat conduction oil coil pipe which are of a double-layer structure;

the fire tube is horizontally arranged, one end of the fire tube is connected with the vertically upward smoke tube, an inner cavity of the fire tube is communicated with an inner cavity of the smoke tube, a cavity between the inner layer and the outer layer of the fire tube is communicated with a cavity between the inner layer and the outer layer of the smoke tube to form a heat conduction oil channel, and the end part of the heat conduction oil channel is sealed and is internally provided with heat conduction oil;

the inner layer at the other end of the fire tube is connected with the burner, and the inner layer at the other end of the smoke tube is communicated with the heat-preserving cover;

the two ends of the heat conduction oil channel are communicated through a heat conduction oil coil pipe, and the bottom of the heat conduction oil expansion tank is communicated with the heat conduction oil coil pipe through a heat conduction oil branch pipe.

Furthermore, one end of the heat conduction oil coil is arranged at one end, close to the burner, of the fire tube, and the other end of the heat conduction oil coil is arranged at one end, far away from the fire tube, of the fire tube, so that the temperature difference and the density difference of heat conduction oil at the two ends of the heat conduction oil coil are maximum, and the heat conduction oil circulation loop is promoted to be smoothly carried out.

Furthermore, the diameter of the inner pipe of the smoke pipe is smaller than that of the inner pipe of the fire pipe, so that the heat conduction oil is promoted to flow back along the smoke pipe.

Furthermore, the bottom of the fire tube is provided with an oil cleaning pipe, the oil cleaning pipe is communicated with the inner-layer cavity and the outer-layer cavity of the fire tube, and the oil cleaning pipe is used for cleaning heat conduction oil which is used for a long time in the heat conduction oil channel.

The utility model provides a conduction oil circulation pitch heating device compares with prior art, and its beneficial effect as follows:

(1) the utility model discloses be linked together tobacco pipe internal diameter and pitch pump heat preservation cover, utilize the flue gas residual heat to heat the pitch pump, prevent the pitch card pump, both improved the utilization ratio of the energy, prolonged the availability factor of pitch pump again.

(2) The utility model discloses the absorption heat of conduction oil is different in the inlayer cavity of well utilized firetube, tobacco pipe, and conduction oil channel and conduction oil pan pipe have formed a conduction oil return circuit, energy saving.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

As shown in figure 1, a heat conduction oil circulation asphalt heating device comprises an asphalt box 1, a charging hole, a heat conduction oil expansion tank 2 and an asphalt pump 3, asphalt is filled in the asphalt box 1, the charging hole, the asphalt pump 3 and the heat conduction oil expansion tank 2 are arranged at the top of the asphalt box 1, asphalt raw materials can be added into the asphalt box 1 through the charging hole, a burner 8 and a heat conduction oil temperature measurer 4 are arranged on the side wall of the asphalt box, a heat preservation cover 5 is arranged outside the asphalt pump 3, a smoke outlet pipe 51 is arranged on the heat preservation cover 5, a heat conduction oil heater is arranged in the asphalt box 1, the heat conduction oil heater comprises a fire pipe 61, a smoke pipe 62 and a heat conduction oil coil pipe 7 which are of a double-layer structure, the heat conduction oil temperature measurer 4 monitors the temperature of heat conduction oil in the heat conduction oil coil pipe 7, the fire pipe 61 is horizontally arranged, one end of the fire pipe 61 is connected with the vertical upward smoke pipe 62, the diameter of the fire pipe 62 is smaller than the diameter of the inner pipe of the fire pipe 61, the inner cavity of the fire tube 61 is communicated with the inner cavity of the smoke tube 62, the cavity between the inner layer and the outer layer of the fire tube 61 is communicated with the cavity between the inner layer and the outer layer of the smoke tube 62 to form a heat conduction oil channel, the end part of the heat conduction oil channel is sealed and internally provided with heat conduction oil, the inner layer at the other end of the fire tube 61 is connected with the burner 8, the inner layer at the other end of the smoke tube 62 is communicated with the asphalt heat-preservation cover 5, the two ends of the heat conduction oil channel are communicated through a heat conduction oil coil 7, one end of the heat conduction oil coil 7 is arranged at one end of the fire tube 61 close to the burner 8, the other end of the heat conduction oil coil 7 is arranged at one end of the smoke tube 62 far away from the fire tube 61, and the bottom of the heat conduction oil expansion tank 2 is communicated with the heat conduction oil coil 7 through a heat conduction oil branch pipe 71.

Wherein, the bottom of the fire tube 61 is provided with a clean oil pipe 611, and the clean oil pipe 611 is communicated with the inner and outer layer cavities of the fire tube 61.

The working principle is as follows: the high-temperature flue gas generated by the burner 8 sequentially enters the inner layer of the fire tube 61 and the inner layer of the smoke tube 62, the heat conducting oil in the heat conducting oil channel absorbs heat, the density difference is generated by the heat conducting oil due to the fact that the heat conducting oil channel and the heat conducting oil absorbed by each part of the heat conducting oil in the heat conducting oil coil 7 are unequal, heat exchange is performed between the heat conducting oil and the asphalt in the heat conducting oil coil 7, the heat conducting oil of the heat conducting oil coil 7 is in a heat dissipation state, the temperature is low, the density is high, and the heat conducting oil flows downwards; the heat conducting oil in the fire tube 61 flows upwards due to the fact that the density of a large amount of absorbed heat is reduced, heat conducting oil is formed to flow in a circulating mode, a heat conducting oil loop is formed by the heat conducting oil channel and the heat conducting oil coil 7, the heat conducting oil in the heat conducting oil loop is heated evenly, smoke in the smoke tube 62 and the heat conducting oil are subjected to heat exchange, then the smoke enters the heat preservation cover 5 along the smoke tube 62, the asphalt pump 3 is heated, asphalt is prevented from being stuck, and finally the smoke is discharged through the smoke outlet tube 51.

The above disclosure is only for the specific embodiments of the present invention, however, the embodiments of the present invention are not limited thereto, and any changes that can be considered by those skilled in the art should fall into the protection scope of the present invention.

Claims

1. The utility model provides a conduction oil circulation pitch heating device which characterized in that: comprises an asphalt box (1), a charging hole, a heat-conducting oil expansion tank (2) and an asphalt pump (3);

the asphalt box (1) is filled with asphalt, the charging port, the asphalt pump (3) and the heat-conducting oil expansion tank (2) are arranged at the top of the asphalt box (1), and the side wall of the asphalt box is provided with a burner (8) and a heat-conducting oil temperature measurer (4);

a heat-insulating cover (5) is arranged outside the asphalt pump (3), and a smoke outlet pipe (51) is arranged on the heat-insulating cover (5);

a heat conduction oil heater is arranged in the asphalt box (1), and comprises a heat conduction oil coil pipe (7), a fire pipe (61) with a double-layer structure and a smoke pipe (62);

the fire tube (61) is horizontally arranged, one end of the fire tube (61) is connected with the vertically upward smoke tube (62), an inner cavity of the fire tube (61) is communicated with an inner cavity of the smoke tube (62), a cavity between the inner layer and the outer layer of the fire tube (61) is communicated with a cavity between the inner layer and the outer layer of the smoke tube (62) to form a heat conduction oil channel, and the end part of the heat conduction oil channel is sealed and heat conduction oil is filled in the heat conduction oil channel;

the inner layer at the other end of the fire tube (61) is connected with the burner (8), and the inner layer at the other end of the smoke tube (62) is communicated with the heat-preserving cover (5);

the two ends of the heat conduction oil channel are communicated through a heat conduction oil coil (7), and the bottom of the heat conduction oil expansion tank (2) is communicated with the heat conduction oil coil (7) through a heat conduction oil branch pipe (71).

2. The asphalt heating apparatus for heat transfer oil circulation according to claim 1, wherein: one end of the heat conducting oil coil (7) is arranged at one end of the fire tube (61) close to the burner (8), and the other end is arranged at one end of the smoke tube (62) far away from the fire tube (61).

3. The asphalt heating apparatus for heat transfer oil circulation according to claim 1, wherein: the inner tube diameter of the smoke tube (62) is smaller than the inner tube diameter of the fire tube (61).

4. The asphalt heating apparatus for heat transfer oil circulation according to claim 1, wherein: an oil cleaning pipe (611) is arranged at the bottom of the fire tube (61), and the oil cleaning pipe (611) is communicated with the inner-layer cavity and the outer-layer cavity of the fire tube (61).