阅读说明：本技术 一种热油工质烘缸 (Hot oil working medium drying cylinder ) 是由 周芝玉 于 2019-09-16 设计创作，主要内容包括：本发明提供一种热油工质烘缸,涉及烘缸与热传导技术领域,它主要由圆柱筒、左右密封端盖、端盖保温层、旋转接头和进、出导热油管组成。本发明采用工业专用混合导热油做为热载体工质,经过导热油炉站加热导热油后注入烘缸体内,使烘缸缸面达到所需温度,将紧贴缸面湿物烘干至所需干度；它除了克服蒸汽工质的缺点,还具有如下优点：一、加热均匀、迅速,从而提高工作效率；二、结构简单、易于自动化调控,灵活性更高；三、无需将烘缸与导热油管制作成高强度的压力容器、无高压爆炸安全隐患；四、可使烘缸表面温度迅速度到200℃以上,减少烘缸的安装使用个数与组数,从而降低固定资金的投入。(The invention provides a hot oil working medium drying cylinder, which relates to the technical field of drying cylinders and heat conduction and mainly comprises a cylindrical cylinder, left and right sealing end covers, an end cover heat insulation layer, a rotary joint, and an inlet and outlet heat conduction oil pipe. The invention adopts industrial special mixed heat conducting oil as a heat carrier working medium, the heat conducting oil is heated by a heat conducting oil furnace station and then injected into a drying cylinder body, so that the cylinder surface of the drying cylinder reaches the required temperature, and wet objects tightly attached to the cylinder surface are dried to the required dryness; besides overcoming the disadvantages of steam working medium, the method also has the following advantages: firstly, heating is uniform and rapid, so that the working efficiency is improved; the structure is simple, automatic regulation and control are easy, and the flexibility is higher; thirdly, a drying cylinder and a heat conduction oil pipe are not required to be manufactured into a high-strength pressure container, and high-pressure explosion potential safety hazards are avoided; fourthly, the surface temperature of the drying cylinders can be quickly increased to more than 200 ℃, and the number of the drying cylinders and the number of groups of the drying cylinders are reduced, so that the investment of fixed capital is reduced.)

1. A hot oil working medium drying cylinder comprises a left sealing end cover (1); a rotary joint a (2); a rotary joint b (201); a heat inlet and conducting oil pipe (3); an end cover heat-insulating layer (4); a right sealing end cap (6); a manhole cover (7); go out heat conduction oil pipe (8) and cylinder section of thick bamboo (9), its characterized in that:

the drying cylinder body comprises a cylinder barrel (9), a left sealing end cover (1) and a right sealing end cover (6) which are symmetrically arranged at two ends of the cylinder barrel (9), wherein the left sealing end cover (1) and the right sealing end cover (6) are respectively fixed at the left side and the right side of the cylinder barrel (9) through bolts (5), reinforcing rings (901) are respectively cast in the left side and the right side of the cylinder barrel (9) together, a rotary joint a (2) is arranged at the middle axial position of the left sealing end cover (1), a rotary joint b (201) is arranged at the middle axial position of the right sealing end cover (6), and a manhole cover (7) is arranged on the right sealing end cover (6);

the heat conduction oil pipe includes into heat conduction oil pipe (3) and goes out heat conduction oil pipe (8), it runs through and in the through dryer from the outside axial of rotary joint a (2) to advance heat conduction oil pipe (3), it has two kinds of mounting means to go out heat conduction oil pipe (8), one of them mode is that it runs through and in the through dryer and pass perpendicularly oil face (10) and be close the cylinder section of thick bamboo (9) inner wall and only set up in same one side direction position with advancing heat conduction oil pipe (3) from the outside axial of rotary joint b (201) to go out heat conduction oil pipe (8), another mode is that it sets up in same one side direction position together with advancing heat conduction oil pipe (3) to go out heat conduction.

2. A hot oil working medium drying cylinder according to claim 1, characterized in that: the drying cylinders are connected in parallel or in series by the heat inlet and outlet oil pipes (3) and (8) to form a single-section or multi-section drying cylinder group for conveying heat conducting oil in a forward flow or reverse flow mode.

3. A hot oil working medium drying cylinder according to claim 1, characterized in that: the left sealing end cover (1) and the right sealing end cover (6) can be arranged in one of a convex structure, a concave structure or a flat structure, and end cover heat-insulating layers (4) are arranged on the outer side walls of the left sealing end cover (1) and the right sealing end cover (6).

4. A hot oil working medium drying cylinder according to claim 1, characterized in that: the cylindrical barrel (9), the left sealing end cover (1) and the right sealing end cover (6) are all made of conventional steel materials.

5. A hot oil working medium drying cylinder according to claim 1, characterized in that: and the heat-conducting oil inlet pipe (3) and the heat-conducting oil outlet pipe (8) are both glass fiber reinforced plastic pipelines.

Technical Field

The invention relates to the technical field of drying cylinders and heat conduction, in particular to a hot oil working medium drying cylinder.

Background

At present, manufacturers who use drying cylinders to dry materials, such as paper mills and paperboard mills, mostly adopt steam as a heating medium, that is, the steam is introduced into the drying cylinders to reach a certain steam pressure, so that the cylinder surface reaches a certain temperature, and wet materials tightly attached to the cylinder surface are dried to the required dryness. The method has at least six defects, one of the defects is that a large-scale boiler steam-producing plant station and a conveying steam pipe network are required to be built, and all steam container devices are required to be made of high-pressure-resistant pressure container materials, so that the fixed investment is particularly huge and accounts for about 1/4 of the total investment; secondly, the floor area of a boiler plant and a steam conveying pipe network is large; thirdly, as the coal-fired or oil-fired or natural gas heating boiler is adopted to produce steam, the steam cannot be recycled, and the operation cost is higher; fourthly, the phenomena of heat loss during conveying, leakage and leakage are serious, and the potential safety hazard is large; fifthly, the saturated vapor pressure which is required to be used on site and has the temperature of 200 ℃ and more than 15.6MPa cannot be produced; sixth, encrustations which are difficult to remove are often generated in the boiler pipeline due to long-term work, and the use and heat exchange effects are seriously influenced.

At present, the design of the drying cylinder adopting heat conduction oil as a heating working medium is provided, but the drying cylinders of the heat conduction oil still have great defects, such as uneven heat transfer, low heat conduction efficiency, single transmission form, complex structure, great difficulty in manufacturing and installation and the like, and the heat inlet and outlet oil pipes of the drying cylinders of the heat conduction oil still need to be seamless steel pipes with high price and good heat transfer effect, so that the invention provides the drying cylinder of the hot oil working medium to solve the defects.

Disclosure of Invention

The invention aims to provide a hot oil working medium drying cylinder to solve the technical problem.

In order to solve the technical problems, the invention adopts the following technical scheme: a hot oil working medium drying cylinder comprises a left sealing end cover; a rotary joint a; a rotary joint b; a heat inlet and conducting oil pipe; an end cover heat insulation layer; a right seal end cap; a manhole cover; go out heat conduction oil pipe and cylinder section of thick bamboo, its characterized in that:

the drying cylinder body comprises a cylindrical barrel, a left sealing end cover and a right sealing end cover, wherein the left sealing end cover and the right sealing end cover are symmetrically arranged at two ends of the cylindrical barrel, the left sealing end cover and the right sealing end cover are respectively fixed at the left side and the right side of the cylindrical barrel through bolts, reinforcing rings are respectively cast in the left side and the right side of the cylindrical barrel together, a rotary joint a is arranged at the middle axial position of the left sealing end cover, a rotary joint b is arranged at the middle axial position of the right sealing end cover, and a manhole cover is arranged on the right sealing;

the heat conduction oil pipe includes into heat conduction oil pipe and goes out heat conduction oil pipe, advances in heat conduction oil pipe and runs through and reach the dryer body from the outside axial of rotary joint a in, goes out heat conduction oil pipe and has two kinds of mounting means, and one of them mode is that it runs through and reach in the dryer body and pass the oil level perpendicularly and be close the cylinder section of thick bamboo inner wall and only apart from 1 ~ 3 cm's clearance from rotary joint b's outside axial, and another kind is that it sets up in same one side direction position with advancing heat conduction oil pipe together to go out heat conduction oil pipe.

Preferably, the drying cylinders are connected in parallel or in series by the heat-conducting oil inlet pipe and the heat-conducting oil outlet pipe to form a single-section or multi-section drying cylinder group for conveying heat-conducting oil in a concurrent or countercurrent mode.

Preferably, the left sealing end cover and the right sealing end cover can be arranged in one of a convex structure, a concave structure or a flat structure, and the outer side walls of the left sealing end cover and the right sealing end cover are both provided with end cover heat-insulating layers.

Preferably, the cylindrical barrel, the left sealing end cover and the right sealing end cover are all made of conventional steel materials.

Preferably, the heat-conducting oil pipe and the heat-conducting oil outlet pipe are both glass fiber reinforced plastic pipes.

The invention has the beneficial effects that:

in the invention, industrial special mixed heat conducting oil is used as a heat carrier working medium, and the temperature, the conveying flow, single-section or multi-section conveying, a concurrent or countercurrent mode and the like of the heat conducting oil are automatically controlled by a heat conducting oil furnace station. The heat conduction oil furnace station heats heat conduction oil, then the heat conduction oil is input into the drying cylinder body through the heat conduction oil inlet pipe, the drying cylinder body is heated, the heat conduction oil releasing heat energy returns to the heat conduction oil furnace station through the heat conduction oil outlet pipe to continue to carry heat, the circulation work is repeated in this way, the surface temperature of the drying cylinder body is always constant and consistent at a required value, and wet objects tightly attached to the cylinder surface are dried to a required dryness. The steam working medium heating device overcomes the defects of steam working media, and has the advantages that the heating is uniform and rapid, so that the working efficiency is improved; the structure is simple, automatic regulation and control are easy, and the flexibility is higher; thirdly, the drying cylinder body and the pipeline are not required to be manufactured into a high-strength pressure container, and potential safety hazards of high-pressure explosion are avoided; fourthly, the surface temperature of the drying cylinder can be quickly increased to more than 200 ℃, and the number of the drying cylinders and the number of groups of the drying cylinders are reduced, so that the investment of fixed capital is reduced; fifthly, the oil guide pipe only needs to select a common glass fiber reinforced plastic pipeline with enough strength; sixthly, the hot oil working medium can be recycled, the heat loss is small, and the energy-saving and environment-friendly functions are achieved.

Drawings

FIG. 1 is a side plan view of a hot oil working medium dryer of the present invention;

FIG. 2 is a cross-sectional view of the hot oil working medium drying cylinder with the heat transfer oil respectively entering and exiting from the left and right sides;

FIG. 3 is a cross-sectional view of a hot oil working medium drying cylinder with one single side entering and exiting heat transfer oil in the same direction;

reference numerals:

1. a left seal end cap; 2. a rotary joint a; 201. a rotary joint b; 3. a heat inlet and conducting oil pipe; 4. an end cover heat insulation layer; 5. a bolt; 6. a right seal end cap; 7. a manhole cover; 8. discharging a heat conduction oil pipe; 9. a cylindrical barrel; 901. a reinforcement ring; 10. and (5) oil level.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.