JPS60263001A - Foundation charging method of boiler compound and device thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method and apparatus for basically adding a can cleaning agent to the initial amount of water at the start of use of a steam boiler for chemical treatment of can water in a steam boiler.

Prior Art Conventionally, as shown in Figure 1, this type of system involves pouring the required amount of can cleaning agent into the soft water tank for boiler water supply in a lightweight container at the start of boiler use, pouring it in by hand, stirring it, and turning on the water supply pump. It is operated, mixed with water supply, and thrown into the boiler.

That is, in Fig. 1, the soft water (4) in the soft water tank (3) is pressurized by the water supply pump (2) and supplied into the boiler (1), and the steam chamber generated by the combustion heating of the burner (9) (10) of! Nii is supplied to the steam-using equipment through the air pipe (1), but the luck of the boiler (1), the water pump (2) and the burner (9) while it is in operation! i! '; is controlled by the boiler control system (8), and the injection of can cleaning agent into the make-up water during operation is performed by the metering injection pump (5) operating in conjunction with the operation of the water supply pump (2). It is common to inject the canned medicine (7) in the chemical solution tank (6) into the water supply pipe (12) and inject 9m into the water supply pipe (12). ), the injection amount is determined when the boiler (1) canned water explodes to some extent and the remaining canned water in C3 becomes unstable, so that the P fl value of the canned water remains constant (< the boiler water quality standard range specified by J1s standard). Since the amount is limited to only the amount necessary to maintain the water quality after reaching the target level, no consideration is naturally given to the soft water supplied at the time of initial water filling, and the initial water supply is limited to the amount necessary to maintain water quality. If the drug is injected alone, there will be a shortage.

Therefore, when initially filling with water, measure and add the required amount of can cleaning agent into the water softener tank (3) using a container (13)'.
It's the end of the sleeve. The dirt is called the basic injection of li'i E agent.

Means for Solving Problems The above-mentioned basic method of adding can cleaning agents requires the time and effort of measuring, adding, and stirring the chemicals each time the water is filled, and at the same time requires a water supply pump (2 ) because chemicals enter inside the
Among the pump parts (impeller, casing, etc.), parts made of copper alloys such as bronze may be damaged by alkali corrosion, significantly reducing the pump's function and eventually damaging the pump. This caused an inconvenience.

Means for Solving the Problems Therefore, the technical problem of the present invention is to provide a method and a device for basic injection of can cleaning agent into a boiler without manual injection and without passing through the inside of a feed pump. It is something to do.

The technical means of the present invention to solve this technical problem is that the high pressure generated in the steam chamber of the boiler can is located above the water surface of the boiler can and has an internal volume that is a certain proportion of the amount of water held in the boiler can. Brown air is injected into the boiler while it is running, and after the boiler is stopped, the air is cooled down by the surrounding air and caused to fall into a DJ state. It was inhaled into the chamber and was inhaled as soon as the operation started! ? #Basic injection method of boiler can cleaning agent in which the can agent is supplied into the boiler can by a difference of 1°J between the chamber and the boiler can water surface, and the amount of water held in boiler can water above the water surface of the boiler can water. A chamber having an internal volume of a certain proportion is provided, and the chamber and the hot air chamber in the boiler can are connected by a conduit pipe with a control valve, and furthermore, the direction of flow into the chamber is the forward direction. A chemical solution tank is connected via a chemical solution suction R equipped with a check valve, and the control valve of the conduction pipe is opened at the start of boiler operation, and is linked to the boiler's electric control flIl1 circuit so that it is closed after the boiler operation is stopped. Alternatively, it is a basic boiler cleaning agent dosing device configured so that the control valve can be opened and closed directly manually.

Effects of the Invention According to this technical means, it is possible to completely eliminate the trouble of pouring the boiler cleaning agent and the damage to the water pump with a simple configuration and a small number of moving parts.

Example Details will be explained below according to the embodiment shown in FIG.

In Figure 2, the water supply and combustion control of the boiler (1) is controlled by the boiler control 5 (8) as before.
Soft water (4) is supplied to the boiler (
1), and the metering pump (5) also works in conjunction with the water supply pump (2) to inject the can cleaning agent (7).The structure is the same as before, but only the boiler (1) has an air chamber. The chamber (22) is located above the water surface (21) in the boiler (1) can with the conductive 'Ni' (20) passed through the chamber (10).
The chemical solution is connected through an electric control valve (23) and turned 29, and is further conducted to the cleaning agent (7) in the tank (6). Suction pipe (24
) is passed through the check valve (25).

Operation direction of this check valve (:2.5); 4th fi'f:
, l + punishment (7) flows towards the medicine Ijk tank (6) glass 2 nha (22) 71. Is there one direction on the side of l11 and the flow is on one side? 1. Conversely, when trying to flow from the chamber (22) to the force of the chemical tank (6): .

In such a configuration, when 1.1mm1°'>(1) is moving to the left, the electric charge I1°i catty (23) is opened and pruned. Inside air chamber (10): 2,'(
~7 'f:,, 3 people, closing operation of check valve (25) °
ζ Chamber...! ? ) must be filled with λ Qi or 1゛/・.

When the boiler (1) has finished operating and the boiler has been stopped, the electric on-off valve (23) is closed, and the chamber (22) is closed.
) inside the same, IE, j, Qi remains trapped,
The next time the boiler (1) is operated,
This will happen.

During this standing period, it is cooled by the surrounding air, and when the λ air inside is also cooled, it gradually condenses and reduces the internal pressure. Then, when the chamber (22) is cooled down to room temperature, a vacuum pressure is created, and the medicinal solution suction tube (24)
Through the chamber, the Ji agent (7) is suctioned to fill the inside of the chamber (22) for 1.5 hours.

Therefore, when starting the operation of the next boiler (1), the electric control valve (
When the chamber (22) and the boiler caustic chamber (1o) are opened, the inside of the chamber (22) and the boiler caustic chamber (1o) become electrically connected and have the same pressure. ) The boiler cleaning agent (7) that had been filled in the tank falls down to 11i4 and is forced into the boiler can water. Can cleaning agent (7)
After discussing this, high pressure, l, +4 qi will be filled again.
The above operation will be repeated.

In this way, the can cleaning agent (7) is automatically added in conjunction with the start and stop of operation of the boiler (1), so the internal volume of the chamber (22) is If the basic input amount of can cleaning agent is determined to be the required amount for the amount of water held, a certain basic input of 'tii can agent will always be purchased when filling with water, which is similar to the conventional method. Without any delay, without affecting the water supply pump (2) at all, the li'f Neat + agent was added (the foundation was thrown in).

--ji'3ζThis boiler is uncertain whether to start operation or shut down (turn it on in the morning for 1 hour and then turn off the power at the end of the day), and the next day's 1- 10 hours ago, I cleaned the previous day's 4 pongees and blew out the canned water.
, Ding is also director J, 6, so [voice f in 1]
The electric on-off valve (23) does not close during the , shi, jut, and it is ensured that the electric on-off valve (23) closes at the start of every 14 uses. , i,
Since the i°i can agent (7) is basically added, the present invention is more practical and effective.

In addition, in the explanation so far, the valve arranged in the conduction '1s (20) has been explained using an electric control valve (for example, a solenoid valve or a motor valve) that opens and closes electrically, but this valve is used as a manual opening and closing valve. It is easy to imagine that the same effect can be obtained by setting C to "open" when the boiler is started to be used, and C to close when it is stopped.

As described above, the present invention has a simple configuration and few moving parts, and saves time and effort in adding boiler chemicals and feeding water pumps. It is an innovative invention with great effects because it can completely eliminate the following.

[Brief explanation of drawings]

Figure 1 is a flowchart explaining the basic method of adding boiler cleaner according to the present invention.
l'l';l;agent4. (62 Explain how to insert Buddha) 1
] - is a chart. (1) ... Boiler (2) ... Water supply pump (3) ... Soft water tank (4) ... Soft water (5) ... Constant volume press-in pump (6) ... Chemical tank (7) ... Cleaning agent (8) ... Boiler control a11 (9)
・ ・ ・ Ha - Poo (lO)...Swallow air chamber (eye)...7: To air 1 (12)... Water supply pipe (13)...Measuring container (20) ...Exclusive ifl! Yami (21) ... Boiler can water surface (22) ... Chamber (23) ... Electric control force (24) ... 2i liquid suction L (25) ... Reverse 11-1゛Figure 1

Claims (1)

[Claims]! 11 The internal volume of the boiler +5 water above the water level is a certain proportion of the amount of retained water in the boiler can. After the boiler stops operating, the high-pressure steam is cooled by the surrounding air and condensed, and the air pressure generated in the chamber by this condensation draws the can cleaning agent from the chemical tank into the chamber and starts operation. A method for inserting boiler cleaning agent into a convex foundation in which the inhaled boiler cleaning agent is supplied into the boiler can by the head difference between the chamber and the boiler can water level. (2) Boiler +5 above the water level of the boiler can water. A chamber having a content 171 of a certain proportion with the amount of water retained is provided, and the chamber and the steam chamber in the boiler can are connected through a communication valve with a control valve, and furthermore, the chasoba flows into the chamber. The chemical tank is connected through a chemical suction shield equipped with a check valve whose direction is in the forward direction, and the boiler is electrically controlled so that the control valve of the conduction pipe is opened at the start of boiler operation and closed after boiler operation is stopped. A basic charging device for boiler 16 cans which is configured to be linked to a circuit or to be able to directly open and close a control valve manually.