JPH0536715B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field The present invention is a method for storing a hollow drum in which a medium to be heated or to be heated is passed in an outer can, and to heat or to be heated the fluid, etc. passed through the inside of the outer can. In a device that exchanges heat with a heating medium, in particular, a hollow rotary blade is provided on the circumferential surface of a hollow drum to heat or circulate the medium to be heated, and heat is exchanged from one side of the inside of the outer can to the other. Alternatively, the present invention relates to a structure of a heat exchanger in which a medium to be heated is circulated and discharged, and solid matter adhering to the surface of a rotor blade can be scraped off using a scraping plate.

(B) Prior art Conventionally, heating or a medium to be heated was made to flow through an outer can, a hollow drum on which heating or a medium to be heated was also circulated was housed inside the outer can, and heat exchange was performed between them. Heat exchangers are common.

In such conventional heat exchangers, the heat exchange efficiency between the rotating hollow drum and the inside of the outer can is poor, and in order to increase the surface area of the hollow drum, blades or arms are protruded, or the inside of the outer can is agitated. However, since the heat exchange efficiency factors other than the heat transfer area from the hollow drum cannot be satisfied, heat cannot be exchanged evenly from inside the outer can, resulting in a large drop in heat exchange efficiency.

(c) Problems to be Solved by the Invention As described above, in conventional heat exchangers, in order to improve the efficiency of heat exchange between the inside of the outer can and the hollow drum, blade bodies or Although the arm is provided protrudingly, the improvement of heat exchange efficiency cannot be solved only by increasing the surface area by such blades and arms, stirring operation, etc. It is necessary to ensure a large heat transfer area, and conventional heat exchangers have not taken this point into sufficient consideration.

(d) Means for Solving the Problems In the present invention, a hollow drum through which the medium to be heated or the heating medium can flow is rotatably provided inside the cylindrical outer can filled with the medium to be heated or the medium to be heated. A large number of disk-shaped hollow rotary blades of uniform thickness are protruded from the outer periphery of the hollow drum with a constant gap maintained in the axial direction, and the base end of the deposit scraping plate is attached to the inside of the outer can. , whose tip side extends along the outer surface of the hollow rotary blade to the outer surface of the hollow drum, and forms a medium supply space and a medium discharge space partitioned into two by a partition wall inside the hollow drum. , a partition wall is provided inside the hollow rotor,
Both ends of the C-shaped circulation space inside the hollow rotary blade formed by the partition wall are communicated with the medium supply space and the medium discharge space inside the hollow drum, and,
A large number of partitions are arranged at intervals in the circumferential direction within the C-shaped circulation space of the hollow rotor to form a large number of heat transfer chambers, and each partition is provided with a large number of communication holes. The heat transfer chambers are made to communicate with each other, and furthermore, an inlet and an outlet for the medium to be heated or to be heated are arranged on the circumferential surface of the cylindrical outer can along the rotational direction of the hollow drum. The present invention aims to provide a structure for a heat exchanger that achieves this.

(e) Effect In this invention, if the hollow drum is rotated while the material to be heated or heated flows into the outer can from the inlet, heat exchange is performed with the medium to be heated or heated flowing through the hollow drum. In particular,
In the rotary blade, the medium flows from the medium supply space of the hollow drum into one end of the C-shaped circulation space formed by the partition wall, and while generating turbulent flow within the C-shaped circulation space. The medium is circulated and discharged from the other end of the C-shaped circulation space to the medium discharge space of the hollow drum,
The object to be heated or heated flows through the rotor blade smoothly, the heat transfer area between the heating object inside the outer can or the object to be heated is made as large as possible to improve heat exchange efficiency, and the inside of the outer can is improved. The solid content contained in the fluid of the heated object or the object to be heated can be scraped off from adhering to the surface of the rotor blade, and the heat exchange efficiency can be further improved.

(F) Embodiments The embodiments of the present invention will be described in detail based on the drawings.
A shows a heat exchanger of the present invention, and this heat exchanger A has a plurality of disc-shaped rotary blades 2 rotatably mounted on an outer can 1 via a hollow drum 3, and
An inlet 4 for a heating medium or a medium to be heated is opened on the circumferential surface of the outer can 1, and an outlet 5 is opened in the rotational direction of the hollow drum 3 inside the outer can 1. The discharge port 5 is configured by disposing a scraping plate 6 inside the outer can 1, and as the rotor blade 2 rotates, it scrapes off deposits in the heated or heated medium that have adhered to the surface of the rotor blade 2. It is something.

The hollow drum 3 has a hollow interior, and has a supply pipe 7 and a discharge pipe 8 protruding from the left and right sides that communicate with the inside of the drum 3 to supply heating or a medium to be heated into the drum 3, and It is constructed so that it can be discharged from within the drum 3. Drum 3
Inside, the inside of the drum 3 is partitioned into two by a partition wall M extending in the horizontal direction, and one side edge of the space partitioned by the partition wall M is folded to face the communication opening 7' of the supply pipe 7. At the same time, by bending the other end of the partition wall M to face the communication opening 8' of the discharge pipe 8, the inside of the drum 3 is divided into a supply space S and a discharge space S'. Note that the partition wall M is made of a heat insulating material.

Further, the drum 3 is made rotatable by supporting both the pipes 7 and 8 on the left and right side walls 9 and 10 of the outer can 1, respectively. The drum 3 is connected to a driving pulley 13 of an articulated motor 12 via an interlocking belt 14, so that the drum 3 can be rotated by the power of the motor 12.

Further, the rotary blades 2 are provided radially protruding from the circumferential surface 3' of the drum 3, and a plurality of the rotary blades 2 are arranged in parallel at a constant distance from each other in the axial direction of the drum 3. , is constructed so that it can rotate together with the drum 3.

The hollow rotary blade 2 is formed hollow, has a partition wall m located on the same plane as the partition wall M inside, and has both end positions in the C-shaped circulation space F formed by the partition wall m. , a supply port 15 communicating with the supply space S on the circumferential side surface 3' of the drum 3;
and a discharge port 16 communicating with the discharge space S'. That is, the medium to be heated or heated in the supply space S in the drum 3 is supplied into the rotor blade 2 from the supply port 15, and after being uniformly and evenly diffused within the rotor blade 2, the medium is supplied from the discharge port 16 to the discharge space. It is configured to be discharged into S', and the peripheral side surface 3' of the drum 3 and the surface 2' of the rotor blade 2 are heated or configured to be heated uniformly and evenly with the medium to be heated. .

Note that inside the hollow rotor 2, a required number of partitions 18 having a large number of communication holes 17 are provided radially, and an annular partition 19 for dividing the upper and lower parts is provided, so that the inside of the hollow rotor 2 can be divided into a large number of partitions. It is divided into a heat transfer chamber R, and a medium to be heated or heated is made to flow through the communication hole 17.

The scraping plate 6 is formed with a plurality of fitting grooves 20 having an opening at the tip for slidably fitting the rotary blade 2, so that the fixed portion remaining on the surface 2' of the rotor blade 2 can be scraped off. It is configured like this. Further, the scraping plate 6 is configured to be inclined downward from the distal end toward the proximal end in the laid down state, so that the scraped solid matter can be guided to the discharge port 5.

In addition, the heating or heated medium to be distributed to the outer can 1 and the hollow drum 3 in this invention includes:
For example, an embodiment may be considered in which hot water from underground is passed through the outer can 1 and the heat of the water vapor is transferred to an object to be heated that has passed through the hollow drum 3.

Moreover, as another embodiment, the hollow drum 3 and the hollow rotary blade 2 can be configured as follows, that is, each hollow part of the hollow drum 3 and the rotary blade 2 is The port 15 and the discharge port 16 are communicated with each other, and it is possible to convey heating or a medium to be heated, especially a liquid medium, without providing the above-mentioned special structure inside the hollow drum 3 or inside the hollow rotary blade 2. (See FIG. 2) This structure also has the effect of greatly improving heat exchange efficiency when using a liquid medium.

(g) Effects According to the present invention, the medium flows evenly through the hollow drum through the C-shaped circulation space formed in the rotor blade that performs heat transfer to the medium to be heated, and also causes turbulent flow. While circulating, the deposits that adhere to the surface of the rotor blade are scraped off over a wide area, which has the effect of greatly improving the heat exchange efficiency of the rotor blade.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view of an embodiment of the present invention, Fig. 2 is a sectional side view, Fig. 3 is a side view of the same, Fig. 4 is a sectional view of the rotor blade, and Fig. 5 is a partially cutaway perspective view of the main part. It is a diagram. A...Heat exchanger, 1...Outer can, 2...Rotor blade,
2'... Surface, 3... Hollow drum, 3'... Circumferential side, 4... Inlet, 5... Outlet, 6... Scraping plate, M... Partition wall, S... Supply space, S ′...Exhaust space, m...Partition wall.

Claims (1)

[Claims] 1. (a) Inside a cylindrical outer can 1 filled with a heating medium or a medium to be heated, (b) A hollow drum 3 through which the medium to be heated or a heating medium can flow is rotatably housed. (c) A large number of disc-shaped hollow rotary blades 2 of uniform thickness are protruded from the outer periphery of the hollow drum 3 with a constant gap maintained in the axial direction, and (d) The base end of the deposit scraping plate 6 is attached to the inside of the outer can 1, and its tip side extends along the outer surface of the hollow rotary blade 2 to the outer surface of the hollow drum 3, and (e) a partition wall M is installed inside the hollow drum 3. In addition to forming a medium supply space S and a medium discharge space S' which are divided into sections, (f) a partition wall m is provided inside the hollow rotor blade 2, and the inside of the hollow rotor blade 2 formed by the partition wall m is Both ends of the C-shaped circulation space F are communicated with the medium supply space S and the medium discharge space S' in the hollow drum 3, respectively; A large number of partition bodies 18 are arranged at intervals in the circumferential direction to form a large number of heat transfer chambers R, and each partition body 18 is provided with a large number of communication holes 17 to interconnect the heat transfer chambers R. (h) Furthermore, an inlet 4 and an outlet 5 for heating or the medium to be heated are arranged on the circumferential surface of the cylindrical outer can 1 along the rotational direction of the hollow drum 3. Features of the heat exchanger structure.