JPS5864124A - Automatic throwing-in apparatus - Google Patents

Abstract

PURPOSE:To automatically throw a corrosion inhibitor into the cooling water system of a cooler, by operating a float mechanism and a throwing-in mechanism corresponding to the liquid level of a tank having a siphon. CONSTITUTION:To a tank 2 having a siphon 6 provided thereto, a float mechanism 8 operated corresponding to the liquid level such as the water level 13a in the tank 2 is provided and a throwing-in means such as a push member 12 is further engaged with the float mechanism 8 to automatically throw a chemical agent at every definite time without using hands. As described above, in order to prevent the corrosion of a pipe in the cooling water system of a cooler, a corrosion inhibitor is automatically thrown in at every definite time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an automatic dosing device suitable for applications such as automatically dosing a corrosion inhibitor at regular intervals to prevent corrosion of pipes in the cooling water system of a cooler. Regarding.

Normally, in order to prevent corrosion of the pipes in the cooling water system of a cooler, a corrosion inhibitor is added to the cooling water at regular intervals, but in the past, adding corrosion inhibitors was completely dependent on procurement. As a result, it is easy for the water to be added at irregular intervals or forgotten to be added, making it impossible to maintain the concentration of corrosion inhibitor in the cooling water at an appropriate value, which shortens the life of the cooling water system. That was a factor.

Therefore, the present invention has a tank equipped with a siphon, a float mechanism that operates in conjunction with the liquid level in the tank, and a charging means engaged with the float mechanism, The object of the present invention is to provide an automatic loading device that eliminates the above-mentioned drawbacks.

The present invention will be specifically described below based on embodiments shown in the drawings.

FIG. 1 is a schematic diagram showing an embodiment of an automatic loading device according to the present invention.

As shown in FIG. 1, the automatic feeding device 1 has a box-shaped tank 2, and a drain pulp 3 is placed at the bottom end of the tank 2.
However, a liquid injection valve 5 is connected near the upper end of the tank 2. A U-shaped siphon 6 has a liquid suction port 6 in the tank 2.
The siphon 6 is provided with an opening at the bottom of the tank, and the other end of the siphon 6 penetrates the bottom 2a of the tank and is connected to the cooling water system of a cooler (not shown) having a liquid level lower than the bottom 2a of the tank. There is.

A lid 7 is detachably provided on the tank 2, and a guide rail 9 that constitutes a float mechanism 8 together with a floater 10, which will be described later, is provided on the lid 7 so as to pass through the lid 7 in the vertical direction. The guide groove 9a is in the guide rail 9 as indicated by the arrow A.
, B direction, that is, the vertical direction in the figure, and a floater 10 is engaged with the guide groove 9a so as to be movable in the directions of arrows A and B via rollers 10a, 10a, which are rotatably supported by the floater 10. It matches. Hollow spherical floats lOb and 10b are provided at the lower end of the floater 10 together with a balance weight 10c, and a cam groove 10d is formed diagonally in the floater 10. On the other hand, the lid 7 has
A guide cylinder 7a and a cylindrical storage base 7b containing a large number of anticorrosion agents 11 are provided in the guide cylinder 7a, and a button 12, which is a charging means formed in the shape of an elongated plate, is provided in the guide cylinder 7a in the direction of arrows C and D. It is inserted and secured so that it can be moved freely. The bushing 12 is connected to a cam groove 10d of the floater 10 via a roller 12a rotatably supported at the right end of the bushing 12 in the figure.
In addition, a discharge lower C is formed at a position facing the tip 12b of the bushing 12 of the storage base 7b, and an input lower d passes through the lid 7 to the left of the discharge lower C in the figure. It is formed in the form of

Since the present invention has the above configuration, when the automatic injection device 1 is used to inject the corrosion inhibitor 11 into the cooling water system of the cooler at regular intervals, the drain valve 3 of the tank 2 is first closed. In this state, the liquid injection pulp 5 is opened, and injection of a fixed amount of water 13 per unit time is started via the valve 5 into the tank 2. The injected water 13 is stored in the tank 2, and the water level 13a gradually rises, but when the water level 13a rises above a certain level, the floats 10b, 10
b, the floater 10 receives a buoyant force in the direction of the arrow, that is, upward in the figure, and further moves in the A direction along the guide groove 9a of the guide rail 9 via the rollers 10a, 10a in synchronization with the rise of the water level 13a. moving to. Then, the bushing 12 that is engaged with the cam groove 10d of the floater 10 via the roller 12a is pushed out in the direction C by the cam groove 10d, so that the bushing tip 12b touches the storage base 7.
It comes into contact with the corrosion preventive agent 11 located at the lowest position in b, and further pushes out the corrosion preventive agent 11 from the discharge lower C in the direction C.

As the water level 13a is indicated by the dashed line in the figure, the siphon 6
At the position X beyond the top end of the bushing 12, the bushing 12 is pushed out the most in the direction C, and therefore the anticorrosive agent 11 pushed out by the bushing 12 is thrown into the tank 2 from the feeding lower d. On the other hand, when the water level 13a exceeds the top end of the siphon 6, the suction operation of the water in the tank 2 is started from the liquid suction port 6a of the siphon 6, and the water level 13a of the water in the tank 2 is indicated by the chain double-dashed line in the figure. It is discharged and injected into the cooling water system of the cooler until it reaches the position Y shown. When the water level 13a falls, the floater 10 also falls in the direction B due to its own weight, and therefore the floater 12
The tip 12b also moves in the direction D, and the tip 12b retreats to the right side of the storage base 7b in the figure, preparing for the next charging operation. When the water level 13a reaches position Y, the operation of the siphon 6 is interrupted, and the operation of injecting the water 13 in the tank 2 into the cooling water system is interrupted. On the other hand, since a certain amount of water 13 is always injected from the injected pulp 5, the water level 13a in the tank 2 starts to rise again, and the water flow generated in the tank 2 due to the water injection from the valve 5, etc. The anticorrosive agent 11 introduced by the busher 12 in the previous process starts to dissolve, and is completely dissolved by the time the water level 13a reaches position X and the siphon 6 starts operating again. Corrosion inhibitor 11 at an appropriate concentration is injected together with water 13 into the cooling water system of the cooler. Note that the injection interval of the corrosion preventive agent 11 via the siphon 6 is determined by the amount of water injected into the tank 2 via the injection valve 5 per unit time. As a result, the injection interval becomes longer. 10 In the above embodiment, the automatic injection device 1 was used for injecting the anticorrosion agent 11 into the cooling water system of the cooler, but the automatic injection device 1 It is possible to use the tank 2 for all purposes in which it is necessary to put medicine or the like into the tank 2 and supply it via the siphon 6.

Further, the medicines etc. that are introduced by the injection means such as the bushing 12 do not necessarily need to be introduced into the tank 2.
The injection lower d may be closed and the stroke of the bushing 12 in the directions of arrows C and D may be extended to push it out to an appropriate location outside the tank 2.

Furthermore, it goes without saying that the object to be thrown in is not limited to medicines, etc., but may be any kind of food, such as food for small birds or small animals.

As explained above, according to the present invention, the tank 2 provided with the siphon 6 is provided with the float mechanism 8 that operates in conjunction with the liquid level such as the water level 13a in the tank 2, and the float mechanism 8 is further provided with a button. Since the dispensing means such as No. 12 is engaged, it becomes possible to automatically dispense drugs or the like at regular intervals without relying on human hands. Furthermore, since electricity is not used as a driving source, the device can be used safely even if the liquid injected into the tank 2 or the atmosphere in which the device is installed are explosive or flammable. Furthermore, when the present invention is used for introducing the corrosion-inhibiting agent 11 into the cooling water system of a cooler, the corrosion-inhibiting agent 11 can be added accurately at regular intervals, and the corrosion-inhibiting concentration in the cooling water can always be maintained at an appropriate level. This can contribute to extending the life of the cooling water system.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an embodiment of an automatic loading device according to the present invention. ■・・・・・・・・・・・・・・・Automatic loading device 2・・・・
・・・・・・・・・・・・Tanri 6・・・・・・・・・
・・・・・・Saifon 8・・・・・・・・・・・・
... Float mechanism 12 ...... Input means (butsusha) 13a ... Liquid level (water level) Patent applicant Sanyu Giken Co., Ltd. Agent Patent attorney Aida Shinji

Claims (1)

[Claims] It has a tank provided with a siphon, and the tank is provided with a float mechanism that operates in conjunction with the liquid level in the tank,
Furthermore, an automatic loading device is constructed by engaging a loading means with a float mechanism.