KR100285211B1 - Boiler Supplement Water Supply - Google Patents

Abstract

The present invention has been made for the purpose of improving the life and performance of the boiler by effectively performing the treatment of bubbles generated in the replenishment water supply tank and the overflow water generated when the boiler is boiling.

The present invention forms an inlet connected to the water pipe at a position lower than the lowest level of the supplementary water to be filled in the water tank, the inlet is filled with a buoyancy control water in the valve and the inside to close the inlet by the water pressure from the water pipe Boiler configured to install the opening and closing means for opening and closing the opening and closing inlet by the interaction of the buoy and the buoyancy acting on the buoy in accordance with the level of the replenishment water in the locked state, and the overflow water storage chamber on the side of the tank Present a supplemental water supply.

The present invention prevents air bubbles in the replenishment water and prevents it from flowing into the boiler, thereby improving the performance and extending the life of the boiler, and preventing the overflow of water from boiling in the boiler so that it does not overflow into the tank. It is possible to prevent damage to the electrical system.

[Index]

Boiler, make-up water supply, make-up water bottle

Description

Boiler Supplement Water Supply

The present invention relates to a supplementary water supply device for a boiler, and more particularly, a boiler supplementary water supply device having a means for preventing air from flowing into a heating circulation water of a boiler and a means for preventing an overflow due to a bubble rise. It is about.

In a typical boiler, the supplementary water supply device includes an inlet opening and closing device for opening and closing an inlet connected to a water pipe by a valve associated with the operation of a lifting port according to the water level in the tank, an open water tank for temporarily storing water flowing from the water pipe, It consists of a supplementary water supply pipe that connects the water tank and the heating circulation pipe to supply the water in the water tank to the heating water circulation pipe.When the water in the water tank is supplemented with the heating circulation water and the water level of the water tank is lowered, the valve opens and water from the water pipe. When the water level is increased by a predetermined level by the water introduced from the water pipe, the valve is locked to block the inflow of water.

Therefore, the replenishment water and the heating circulating water in the tank are interconnected, so that the heating water in the heating circulation pipe and the replenishing water in the tank are mutually influenced to reflect each characteristic to the other party with a slight time difference.

The most important of these effects is that when bubbles are formed in the tank, these bubbles are introduced into the heating circulation tube together with the supplementary water, and the introduced bubbles become larger as they are heated, which causes a fatal effect on the life and performance of the boiler. It will cause boiling.

That is, when air bubbles are introduced into the heating circulating water, it expands in the heating process to make the boiler boil, lowers the circulation efficiency and heating efficiency of the circulation pump, shocks the circulation system of the heating water, and oxidizes corrosion by oxygen in the air bubbles. This causes the problem of extremely shortening the life of the boiler.

In addition, when the boiler is boiled by the bubbles in the heating circulation water, the heating circulation water flows back into the water tank to overflow the water tank while the internal air bubbles are discharged through the water tank, and the water overflowing the water tank is the electric device of the boiler (boiler body, circulation). Pumps, etc.), which causes short circuits, internal circuit breaks, and corrosion of the fuselage, which shortens boiler life.

Boilers that boil frequently do not last more than 3-4 years, require full replacement of pipes and joints when the boiler is replaced, and endurance of the boiler, such as the life of the circulating pump before the boiler's life. Boilers without boiling, on the other hand, are known to have a 7-8 year lifespan.

Boiling of the boiler, which absolutely affects the performance and durability of the boiler, is caused by the air bubbles present in the heating circulation water, and the bubble inflow into the heating circulation water, which is a closed pipe, is supplied with the supplementary water. do.

That is, in the case of a conventional replenishment water supply device is provided so that the inlet connected to the water pipe is located above the maximum water level of the replenishment water filled in the water tank so that the inflow from the water pipe falls in the state exposed to the air when supplying the replenishment water It is supplied with a large amount of air to cause the boiler to boil, and the buoy which operates to open and close the valve is also configured to open and close the valve under the influence of buoyancy while floating on the water surface, so that the inflow of supplemental water rapidly increases. As it progresses and abuts against the replenishment water in the tank, it generates a large amount of bubbles in the replenishment water, and these bubbles flow into the heating water circulation pipe through the replenishment water supply pipe, and the boiling of the boiler and the backflow of bubbles into the water tank and the water pipe Inflow of water from the water occurs repeatedly, and boiling occurs until the boiler is temporarily stopped. The problems that have weakened the life and performance of the boiler is by being persistent.

On the other hand, the Utility Model Publication No. 93-22050 proposes a refill container with a structure to receive replenishment water from the bottom of the replenishing canister, which is to supply water from the bottom of the tank. It solves the problem of air bubbles due to air exposure, but the inflow of water is directly supplied from the water pipe into the tank, and the problem of air bubbles due to the instability of the tank cannot be solved. It is not a realistic alternative because the configuration that requires the formation of a separate exhaust box on its own is not compatible with the existing boiler and the boiling phenomenon occurs mainly through the supply pipe connected to the replenishment water.

In addition, the float that operates to open and close the conventional valve is configured to be able to open and close the valve while ascending and descending according to the level of the replenishment water while being operated only by buoyancy and floating on the replenishment water surface. As it is locked, there is a problem in that a sudden overflow of the heating circulating water does not accommodate the inside of the water tank and flows out to cause the failure of the electric device.

In addition, since the buckle used for opening and closing the valve has a structure to fix at the end of a long lever to apply sufficient buoyancy to the valve, the appearance of the tank is increased to secure the space of the float, and thus the water tank can be fixed to the boiler itself. As the structure inside the mouth is simply filled with air and the temperature of the water filled in the tank rises and falls between 0-80 ℃, the air inside the mouth is rapidly expanded and contracted, and the mouth is torn and cracked. There was a problem that should be replaced frequently because of the deformation of.

The present invention provides a means for preventing the occurrence of bubbles in the replenishment water supply tank to block the inflow of air to the circulation circulation water to improve the performance of the boiler and to extend the life of the boiler, the overflow water discharge means generated when the boiler boils It is designed to protect the electrical equipment of the boiler and to prevent oxidation corrosion of the boiler body.

In addition, the present invention increases the life of the floats by preventing deformation of the floats due to the temperature change of the replenishment water, and by configuring the floats to open and close the valve by the action of buoyancy and gravity to minimize the movement space of the floats tank Its purpose is to help reduce its appearance.

1 is a basic configuration of the present invention.

2 is an enlarged cross-sectional view of the valve and the sub-unit coupling.

3 is a cross-sectional view of the a-a part of FIG.

4 is a sectional view taken along the line b-b in FIG.

5 is a supply-flow operation of the replenishment water.

6 is a valve closing operation state by the hydraulic action.

7 and 8 illustrate another embodiment of the present invention.

9 is an operating state when the boiler boils.

10 is an installation state of the present invention.

* Explanation of symbols for main parts of the drawings

1: Water tank 1a: Opening

1b: Outlet 1c: Inlet

1d: valve chamber 1e: flow path

2: supplemental water supply pipe 3: water pipe

4: supplemental water 5: float

6: buoyancy control water 7: valve

7a: vertical protrusion 7b: packing

7c: Euro 8: Secondary Room

8a: Float partition bulkhead 8b: Water passage

9: axis 10: arm

11: friction projection 12: overflow reservoir

13: outlet 14: outlet

15: overflow passage 16: axis

17: lever

The present invention is configured to temporarily store the inflow water from the water pipe (3) in the open water tank (1) to configure the supplementary water supply device of the boiler to continuously supply the supplemental water (4) to the heating circulation water of the boiler, An inlet port 1c connected to the water pipe 3 at a position lower than the lowest level of the replenishment water filled in (1), and the inlet port forms a valve 7 which is opened and closed by the action of the outlet port 5; , To form a sub-chamber 8 on one side of the water tank so that the water inlet is included so that the inflow from the water pipe flows into the water tank via the sub-chamber, and the buoy is buoyant so that the inside has an empty space in the empty space. With the structure of putting the adjusting water 6, the weight of the float containing the weight of the buoyancy control water, the buoyancy of the float acting on the float by the replenishment water and the hydraulic pressure acting on the valve from the water pipe,While elevating a portion in the locked state to the appendix consists of opening and closing of the valve to occur.

1 to 4 show a basic embodiment of the present invention, the water tank 1 has an opening 1a in the upper portion, and the water outlet 1b connected to the replenishment water supply pipe 2 on one side of the lower portion thereof. It is formed, and the other side of the bottom of the tank has a structure in which the inlet (1c) is connected to the water pipe (3) is formed to have a function of temporarily storing the supplemental water (4) introduced from the inlet.

The opening and closing means of the inlet is composed of a buckle (5) to fill the buoyancy control water 6 therein and a valve (7) for opening and closing the inlet according to the action of the buckle.

Buoy (5) is to open and close the valve while raising and lowering in accordance with the level of the replenishment water filled in the water tank buoyancy through the stopper 23 formed in the upper portion so that the valve opening and closing by buoyancy of the buoy and gravity acting on the buoy The adjustment water 6 is filled.

The buoyancy control water 6 acts on the valve with its own weight of the float to open the valve by the float weight when the fill water level drops and to close the valve by the buoyancy when the water level rises and the sudden change of temperature of the supplement water The filling amount is appropriately added or subtracted according to the water pressure of the water pipe to perform the action of preventing deformation of the float.

The buoy is removed by a buoyancy control water, and a large part of the buoyancy is removed and floated only by a part of the buoyancy force, so that the water is locked in a certain part of the tank. When it rises slightly, the water level in the tank decreases and the lower part sinks to the bottom.

As the float is installed in the float chamber 8 formed on one side wall of the water tank, the ascending and descending occurs naturally, and the float chamber is filled with the water level in the float chamber by the water passage 8b formed in the float chamber partition 8a. Make sure the water level is the same as the water level.

The buoy room is formed on one side wall of the tank to provide a space for the exercise of the buoy and to move up and down in a stable state.The turbulent water from the water pipe does not directly act in the tank, but passes through the buoy room. After it is configured to flow into the tank to prevent the inflow of water under high water pressure to affect the replenishment water to suppress the generation of bubbles.

The valve 7 is for controlling the supply of inflow water by the action of the float and the hydraulic pressure, and is installed in the valve chamber 1d formed of the vertical protrusion 7a and the packing 7b and formed in the inlet 1c. As the float 5 rises and falls as the level of the replenishment water 4 in the water tank 1 rises, the lower end 5a of the float 5 comes into contact with the vertical protrusion 6a of the valve, and the downward force and the water pipe of the float It is configured to open and close the valve according to the level of the replenishment water by allowing the rising pressure from the mutual replacement.

4 and 5 show the operation state of the valve 6 and the float, and when the replenishment water reaches the highest level, the float rises, and the float is separated from the float so that the valve is downward from the float. The force is removed and only the upward force is applied by the hydraulic action from the water pipe.

Therefore, the packing portion 7b of the valve is in close contact with the upper wall surface of the valve chamber 1d so that the water pipe is blocked, so that the inflow of supplemental water into the water tank is boiled.

In order to make up for the shortage evaporated in the boiler heating water circulation and heat exchange process, if the replenishment water level drops as much as the amount exiting through the outlet 1b, the water level in the subroom is also lowered, and the subsection descends. Due to the weight of the buoyancy control water filled in the lower part of the float, the vertical projection of the valve is pressed, and the pressure from the water pipe and the weight of the float are replaced, and as the water level decreases, the influence of the buoyancy applied to the float is reduced. The downward force acting on the valve becomes greater than the upward force, causing the valve to descend in the valve chamber, creating a gap between the inlet and the valve, and the supplemental water from the water pipe is introduced therebetween.

If there is no replenishment in the tank at all, the weight of the float acts as a downward force, but in the case of straddling water, the buoyancy is affected, and the downward force, which is the combined force of the float weight and the buoyancy control water, is reduced. The buoyancy in the state in contact with the vertical protrusion of the valve has the characteristic of increasing and decreasing with the water level.

Considering these characteristics, it is possible to reasonably derive the weight of the float corresponding to the hydraulic pressure of the water pipe by increasing the buoyancy control in the buoy in the area where the water pressure of the water pipe is high, and reducing the buoyancy control in the low water pressure. Can be.

A flow path 7c is formed on the vertical protrusion as shown in FIG. 2 for smooth inflow of the replenishment water and smooth lifting of the valve when the valve descends, and the flow path 1e is also provided at the bottom of the valve chamber 1d. To form.

The replenishment water supply device according to the above configuration is supplied below the replenishment water level in the water tank when the inflow water supplied from the water pipe is supplied into the water tank without being in contact with air, and the inflow water under high water pressure directly flows into the replenishment water. It does not work, but it flows into the buoy room and then flows into the tank through the water outlet formed on the buoy compartment bulkhead and enters into a stable state.It acts on the weight and valve of the buoy itself, including buoyancy and buoyancy control water acting on the buoy. When the water pressure of the water pipes is related to each other and is balanced in a certain direction, the opening and closing of the water pipe is very smoothly opened and closed according to the level of the replenishment water in the tank. It is effective.

Therefore, by inducing the boiling of the boiler, the inflow of air bubbles, which are the cause of corrosion of the heating water circulation system, is blocked at the source, thereby improving the performance of the boiler and improving the service life.

The present invention is to fill the buoyancy control water so that the inflow water from the inside of the supplementary water by the interaction of the downward pressure acting on the buckle submerged in the supplementary water and the buoyancy of the supplementary water filled in the tank and the water pressure from the water pipe acting on the valve By having a technical idea to solve all the problems caused by the bubble can be configured in various ways to configure the shape of the ball, the position of the inlet and the combination of the valve and the ball.

FIG. 7 shows an embodiment in which the ball is installed outside the ball room. The ball 5 has a sphere filled with buoyancy control water therein to have a force, and the arm 10 is coupled to one side thereof so that the arm is a ball room. Arm 10 which is installed inside the tank of the outer side of the vestibule so as to be coupled to the shaft 9 formed by passing through the groove formed in the partition in the vertical direction to protrude one side of the water inlet, and is in contact with the vertical protrusion 7a of the valve. The friction protrusion 11 is formed in the site | part, and it has a structure which opens and closes a valve by an action of an arm while raising and lowering a float according to the level of replenishment water.

The groove formed in the partition wall guides the passage of the inflow water and the lifting movement of the float so that the valve is closed by the water pressure when the float is raised and the valve is opened by the weight of the float when the float is lowered.

FIG. 8 shows an embodiment in which an inlet is formed on the side of the water tank so that inflow water is supplied from the side, and an inlet port (Ic) where a valve is installed is installed on the side of the water tank below the refill water minimum level. The upper surface is protruded to form a shaft 16, and the shaft is configured to combine a lever 17 so that one end is caught by the vertical protrusion 7a of the valve and the other end is caught by the lower end of the mouth 5. (8) When the ball lowered in accordance with the water level drop of the replenishing water is caught on one end of the lever, the other end of the reamer presses the valve and passes the valve by levering the axis.

The structure prevents air bubbles by allowing the supplementary water to flow from the interior of the supplemental water by interaction between the downward force acting on the buoy filled with buoyancy control water and the buoyancy of the supplemental water filled in the tank and the hydraulic pressure from the water pipe acting on the valve. The same effect can be achieved.

In addition to the above-described basic configuration, the present invention also provides an effective means for treating the overflow of replenishment water due to the effect of bubbles generated from the boiler.

That is, in the heat exchange process of the heating circulating water, when the oxygen dissolved in the circulating water grows in the process of being exposed to heat to form bubbles, the boiling of the boiler occurs when the bubbles become excessively large, and these bubbles are heated water. It flows out into the tank through the supply pipe. During this process, the replenishment water in the tank is suddenly raised and overflowed, and when the excess water is left, it flows in all directions to rust the body of the boiler and damage the electric system, especially the circulation motor. As a result, there is a need for an effective means of treating supplemental water overflow due to air bubbles.

The present invention forms the overflow water storage chamber 12 in the form of surrounding the one side of the water tank as shown in each of the means, such as to form an outlet 14 connected to the discharge pipe 13 in the lower portion, The structure which formed the overflow water flow path 15 in the side wall of the water tank which contact | connects the storage chamber 12 is shown.

In the above configuration, the depth of formation of the overflow water passage 15 is formed to be a position slightly higher than the highest water level of the replenishment water.

9 is for explaining the action of the above-described overflow water treatment means, when the bubbles generated inside the boiler rises through the replenishment water supply pipe, the replenishment water suddenly boils over, and when the elevated water level reaches the overflow water passage (15) Through the outlet to the overflow water storage chamber, the water filled in the overflow water storage chamber is gradually discharged through the discharge pipe (13).

Since the occurrence of overflow water due to bubble generation occurs instantaneously, and the reaction is rapidly lowered and the boiling water is repeated again after a long time, the water filled in the overflow water storage chamber is already discharged through the outlet when boiling again. .

Even if the boiler boils and the water level of the replenishment water rises again, it does not overflow to the top of the tank, but it is temporarily stored in the overflow water storage chamber and discharged to the sewer. It can be prevented in advance.

On the other hand, the present invention by filling the buoyancy control water in the buoys so that the buoy is raised and lowered in a state that is almost submerged in the replenishment water to prevent a rapid increase in water level compared to the conventional water level control device when the boiler is boiling It becomes possible.

That is, the conventional water level control device is to open and close the valve by the force of buoyancy only in the state that the float floats on the surface of the replenishment water, the boiler is boiled water level is configured so that the float does not rise any more than a certain level When rising, the float is submerged below the surface of the replenishment water, and accordingly the tank capacity decreases as the float is submerged, so that the water level rises very urgently and easily overflows, but in the present invention, the float is already under the replenishment surface. It is locked in the water, and its volume is reflected in the level of the replenishment water. Accordingly, the level rise generated when the boiler boils is more gentle, and all of the boilers are produced when the boiler boils by accommodating the increase in the overflow water storage chamber as described above. The problem can be solved.

10 is a view showing the installation state of the present invention, the supplementary water supply pipe is connected to the heating water circulation pipe, reference numeral 20 in the drawings, the boiler 21, the heating water circulation pipe, 22 is hot water pipe, 23 is buoyancy control water inlet , 24 is the overflow water, 25 is the bubble generated when the boiler is boiling, the arrow is the flow or direction of movement.

The present invention is configured to open and close the valve by the interaction of the downward pressure acting on the buoys filled with buoyancy control water and the buoyancy of the replenishment water filled in the tank and the hydraulic pressure from the water pipe acting on the valve, the rapid inflow of influent or exposure to air It does not generate air bubbles when it falls in a closed state, and it is configured to rise and fall according to the water level while the float is submerged in the water tank, thereby preventing rapid water rise when the boiler is boiling, and a separate overflow water storage chamber on the side of the water tank. By forming a so that even if the boiler boils in the overflow water storage room by accommodating it can solve the problems caused by the overflow water generation.

In addition, by preventing the occurrence of bubbles in the replenishment water to prevent boiling of the boiler generated when bubbles enter the heating circulation water to increase the circulation efficiency and heating efficiency of the circulation pump, and to reduce the impact on the circulation of the heating water. In addition, it prevents the oxidative corrosion of the heating circulation system by oxygen in the bubble, and increases the life of the boiler.The buoyancy control water filled in the mouth prevents water expansion inside the mouth according to the temperature rise of the supplementary water. Therefore, it is possible to extend the life of the float by preventing damage caused by the deformation of the float, and the float can be stabilized by minimizing the movement space of the float by minimizing the movement space of the float in various forms. It can form an external appearance and has the effect which can be miniaturized.

Claims (5)

In constructing the replenishment water supply device of the boiler, the inlet water from the water pipe 3 is temporarily stored in the open water tank 1 to continuously supply the replenishment water 4 to the heating circulation water of the boiler. An inlet port 1c connected to the water pipe 3 at a position lower than a minimum level of the replenishment water filled in the water supply port, and a valve 7 that is opened and closed by the action of the outlet 5 is formed in the inlet port; A buoyancy chamber 8 is formed at one side of the water tank so that the inflow water from the water pipe is introduced into the water tank through the subwater room, and the buoy has a buoyancy control water so as to have a force on an empty space. 6) Put the weight of the float containing the weight of the buoyancy control water, the relationship between the buoyancy force acting on the float by the replenishment water and the hydraulic pressure acting on the valve from the water pipe, Work Part of the makeup water supply of the opening and closing of the valve to occur in the boiler and elevating the locked state. According to claim 1, the buckle (5) is installed in the sub-room so as to move up and down in accordance with the level of the replenishment water, the valve (7) consists of a vertical protrusion (7a) and the packing (7b) so that the vertical protrusion protrudes to the outside The weight of the buoy which contains the weight of the buoyancy control water by the reduced buoyancy when the water level of the supplementary water is lowered while the lower end of the buoy is in contact with the vertical protrusion, and is mounted on the valve chamber Id formed in the inlet 1c. The valve is opened by acting on the valve, and when the water level of the replenishing water rises, the replenishing water supply of the boiler is configured to close the valve by the hydraulic action from the water pipe as the buoyancy force rises and falls from the valve. Device. 2. The valve (7) according to claim 1, wherein the valve (7) is composed of a vertical protrusion (7a) and a packing (7b), and is attached to a valve chamber (Id) formed in the inlet port (1c) so that the vertical protrusion protrudes to the outside. The buoyancy control water is filled in the form of a sphere filled with buoyancy control to have a force, and the arm 10 is coupled to one side of the arm is formed by protruding one side of the inlet through the groove formed in the vertical partition wall It is installed inside the water tank outside the ball room so as to be coupled to the shaft 9, and the friction protrusion 11 is formed in the arm 10 portion which is in contact with the vertical protrusion 7a of the valve. A supplementary water supply device for a boiler, characterized in that the valve is closed and the valve is opened by the weight of the float when the float is lowered. 2. The valve chamber according to claim 1, wherein the buckle 5 is installed in the buccal chamber, and the valve 7 is formed of the vertical protrusion 7a and the packing 7b in the inlet 1c such that the vertical protrusion protrudes outward. It is mounted to (1d), the inlet is installed on the side of the water tank, the shaft 16 is formed on the upper part, one end is caught in the vertical protrusion (7a) of the valve (7), the other end is the lower end of the mouth It is configured so that the valve is closed by the hydraulic pressure when the float rises, and the weight of the float acts on the arm when the float descends and presses the valve to open the valve. Supplementary water supply to the boiler. The outlet water storage chamber according to any one of claims 1, 2, 3, and 4, wherein the overflow water storage chamber 12 is formed to surround one side of the water tank, and a lower portion thereof is connected to the discharge pipe 13. 14) and a replenishment water supply device for the boiler, characterized in that the overflow water passage (15) is formed on the side wall of the water tank in contact with the overflow water storage chamber (12).