JPS6350586Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a stack crane prevention device that is attached to a chimney and prevents the stack crane phenomenon.

[Prior art and problems]

BACKGROUND ART Conventionally, the following stack crane prevention device is generally known, which is attached to a chimney in order to prevent the stack crane phenomenon and separates and collects moisture contained in the exhaust gas flow flowing through the chimney as a liquid.

The exhaust gas airflow 3 is forcibly swirled by a drifting plate 2 installed in the chimney 1 to increase the chances of the exhaust gas coming into contact with the inner wall surface 1a of the chimney 1. The contained moisture is condensed by collision with the inner wall surface 1a and adheres to the inner wall surface 1a as droplets, and is then collected by a drainage device 4 provided along the inner wall surface 1a and discharged to the outside. . (See Figure 1) A drift plate 2 and a collection plate 5 made of a perforated plate are provided in the chimney 1 and on the inner wall surface 1a, and the drift plate 2 causes the exhaust gas airflow to collide with the collection plate 5.
The moisture contained in the exhaust gas is deposited as droplets.
The droplets adhering to the collection plate 5 are removed by a suction device 6
After passing through the collection plate 5, it is sent to the water collection device 8 via the connecting pipe 7. (See Figure 2) However, because it is expected that the exhaust gas airflow collides with the inner wall of the chimney, forming droplets and adhering to the inner wall, there are cases where the droplets do not adhere and the moisture contained in the exhaust gas. It is difficult to collect everything. Furthermore, droplets adhering to the inner wall surface may enter the exhaust gas again before being collected in the drainage device.

Then, the droplets adhering to the collection plate can be reliably discharged by the suction device, and since the exhaust gas is always sucked through the collection plate, it is possible to collect more water content. However, the collection board
It is a large-scale device that requires a suction device and a water collection device, resulting in high equipment costs, and the operation cost of the suction device is also high, making the entire device expensive.

[Purpose of invention]

This idea was devised in view of the above-mentioned circumstances, and its purpose is to provide a stack-crane prevention device that has a simple structure, does not require a large-scale device, and can reliably collect contained moisture in the form of droplets. be.

[Structure of the idea]

According to this invention, a large number of trapping spheres that can float in the exhaust gas stream and absorb moisture are suspended at predetermined positions within the chimney. When the trapping sphere absorbs moisture and becomes heavy, it is collected into an absorption device, and after collecting the moisture, it is returned to the exhaust gas airflow in the chimney, which can be repeated in sequence to collect and remove the moisture contained in the exhaust gas. It is something to do.

〔Example〕

This invention will be explained below with reference to illustrated embodiments.

The stack crane prevention device 9 is provided at the upper end of the chimney 1, and consists of upper and lower partition plates 10, 11 attached inside the chimney 1 at a predetermined interval, a number of capture spheres 12 placed between the upper and lower partition plates 10, 11, and a water suction device 13.
(See FIG. 3) The upper and lower partition plates 10, 11 are made of plates such as lattice plates that are formed to allow the exhaust gas flow to pass through and to close the inside of the chimney 1, and only the lower partition plate 11 is installed at an angle.

The trapping sphere 12 inserted between the upper and lower partition plates 10 and 11 is made of a sponge ball or the like that can float in the exhaust gas airflow and absorb moisture contained in the exhaust gas airflow. .

A water absorption device 1 that collects the captured spheres 12
3 is a communication portion 13 that communicates from the upper surface side of the lowermost inclined end of the lower partition plate 11 to the lower surface side of the upper partition plate 10.
a, and the water absorption part 1 provided in the communication part 13a.
3b, and is attached to the outside of the chimney 1.

The collection of moisture 14 contained in the exhaust gas airflow by the stack crane prevention device 9 having such a configuration is as follows:
This is done as shown in FIGS. 4 and 5.

That is, the exhaust gas airflow 15 that has gone straight through the chimney 1
When the water passes through the lower partition plate 11 and enters the group of trapping spheres 12, it is disturbed, and the contained moisture 14 adheres to the surface of the trapping spheres 12 as droplets. By absorbing the attached droplets into the trapping sphere 12, the moisture contained in the exhaust gas stream 15 is trapped.

The trapping sphere 12, which has sequentially absorbed the droplets adhering to its surface in this way, increases its own weight and falls to abut the lower partition plate 11, and also rolls along the slope and enters the communication part 13a of the absorption device 13.

The captured sphere 12 that has entered the communication section 13a is guided by the communication section 13a and sent to the water absorption section 13b. Here, the trapping sphere 12 traps the moisture contained in the exhaust gas that has been absorbed.

The captured spheres 12, which have absorbed the absorbed moisture, are discharged into the chimney 1 again from the lower surface side of the upper partition plate 10 by the communication portion 13a.

The trapping sphere 12 released into the chimney 1 absorbs the moisture contained while floating in the exhaust gas airflow,
When its own weight increases, it falls and enters the water absorption device 13.

By sequentially repeating this cycle and circulating the trapping spheres 12, the moisture contained in the exhaust gas flowing through the chimney 1 can be removed.

In this embodiment, the stack rain prevention device was attached to the upper end of the chimney, but it may be installed anywhere within the chimney. Since the amount of moisture floating in the tobacco chimney is high at the top of the chimney, it is desirable to install it at the top of the chimney.

[Effect of idea]

This invention has the above configuration and has the following effects.

It has a simple structure consisting of a large number of trapping spheres inserted between upper and lower partition plates installed at predetermined intervals, and an absorption device, and the moisture contained in the exhaust gas can be captured by simply passing the exhaust gas through a large number of trapping spheres. .
Therefore, there is no need to change the direction of the exhaust gas airflow to separate it into droplets, and the entire device becomes inexpensive, as there is no need for complicated equipment such as a deflector plate for this purpose.

The capture sphere is a sphere capable of floating in the exhaust gas stream and absorbing moisture. Therefore, the moisture contained in the exhaust gas can be reliably captured as droplets while floating. Furthermore, when water is absorbed and its own weight increases, it becomes unable to float and falls, and it rolls on the lower partition plate and can be collected in the water absorption device, so there is no need for a complicated device such as a collection device.

[Brief explanation of drawings]

Figures 1 and 2 are schematic diagrams showing a conventional stack crane prevention device, Figure 3 is a schematic sectional view showing the prevention device of this invention installed at the upper end of a chimney, and Figures 4 and 5 are schematic diagrams showing this device. FIG. 3 is a schematic cross-sectional view showing a state in which contained moisture is collected by the invented prevention device. 1... Chimney, 1a... Inner wall surface, 2... Straight flow plate, 3... Exhaust gas airflow, 4... Drainage device, 5... Collection plate, 6... Suction device, 7... Connection pipe, 8... Water collection device, 9... Stud crane prevention Device, 10, 11... Upper and lower partition plates, 12... Capturing sphere, 13... Water absorption device, 13a...
Connection part, 13b...Water absorption part, 14...Contained moisture, 15
...exhaust gas airflow.

Claims (1)

[Scope of Claim for Utility Model Registration] A stack crane prevention device installed in a chimney to collect moisture contained in the exhaust gas airflow, which is installed at predetermined intervals so as to allow the exhaust gas airflow to pass through and block the inside of the chimney. A partition plate and an inclined lower partition plate, a large number of trapping spheres that are placed between the upper and lower partition plates and can float in the exhaust gas airflow and absorb the moisture contained therein, and the lowermost inclined end of the lower partition plate. It consists of a communication part that communicates from the top surface to the bottom surface of the upper partition plate, and a water absorption device that has a water absorption part provided in the communication part and is attached to the outside of the chimney, and when the trapping sphere absorbs water, the communication part A stack crane prevention device characterized in that the device is configured to allow circulation from the lower partition plate side through the water absorption part to the upper partition plate side.