KR880003404Y1 - Hot water boiler - Google Patents

Abstract

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Description

Down-circulating hot water boiler

1 is an explanatory view of a heating system with a hot water boiler of the present invention.

Figure 2 is an enlarged cross-sectional view of the auxiliary chamber structure that is the main part of the present invention.

3 is a cross-sectional view taken along the line A-A of FIG.

* Explanation of symbols for main parts of the drawings

1: auxiliary water room 2: water tank

3: water supply pipe 4: branch pipe

5, 6: Communication tube 7: Hot water discharge pipe

8 flange 9 valve assembly

10: guide road 11: central axis

12: valve disc 12 ': valve plate

13: float 14: plate

14 ': Sealing 15, 16: Valve box

17: communicator

The present invention relates to a hot water boiler for bore coal configured to enable noise prevention in a downward circulation hot water boiler using steam pressure and to prevent damage caused by overheating of the boiler.

As a related art in this field, Published Utility Model Publication No. 83-3237 (Designer Na Byungwan) and Published Utility Model Publication No. 84-5278 (Designer Main Applicant) are disclosed. Both of these open downward circulation hot water boilers have cylindrical auxiliary chambers in parallel with the boiler body. If it boils, the boiling water in the boiler is ejected through the communication pipe by the steam pressure, and the water outlet floats to block the water in the water supply tank by the output of the water.In this way, the water in the boiler room and the auxiliary water chamber is vapor pressure when the water in the water supply tank is blocked. Is discharged through the hot water outlet to supply hot water to the hot water pipe, the valve of the water tank is closed by the steam pressure, and the valve is opened by the increase of water in the water tank. The problem is that the valve operation is uncertain. Im very irregular, as well as the tremendous noise every time the valve motion is generated gajida also a drawback that involve due to overheating of the boiler is not operated until the safety hazard to the boiler exploded.

It is an object of the present invention to provide a downwardly circulating boiler that eliminates these drawbacks.

The present invention installs a check valve in the upper and lower communication pipes installed between the boiler and the auxiliary water chamber (1) so that the upper communication pipe is opened only in the direction of water flow into the boiler, and the check valve installed in the lower communication pipe is assisted from the boiler. It is designed to open only in the direction of water flow into the chamber. In addition, the lower communication pipe is attached in a tangential direction to the outer wall of the auxiliary water chamber 1, and a hot water outlet on the same and opposite side wall of the auxiliary water chamber 1 is installed in a tangential direction to the side wall of the auxiliary water chamber 1, By forming a guide path projecting in the circumferential direction on the side wall of the auxiliary water chamber 1 between the lower communication pipe and the hot water outlet, when the hot water ejected from the lower communication pipe is discharged through the guide path, the water filled in the auxiliary water chamber is It will be driven by the centrifugal force of the jetted water flowing along the inner circumferential wall, and as the water in the auxiliary chamber rotates, the float floating in the auxiliary chamber is also rotated along the float assembly, so that the valve assembly 9 is closed. It is characterized in that the configuration, the float 13 is floated by this rotational movement to close the valve, so opening and closing movement by the steam pressure as in the prior art Noise is prevented and the valve can be easily opened by stopping the rotation of the hatch 13 and eliminating abnormal pressure rise and irregular valve opening and closing in the boiler room. This provides a down-circulation boiler in which the valve is operated smoothly and quietly.

Hereinafter, the structure of the present invention will be described in detail with reference to the accompanying drawings.

1 is an explanatory diagram of a heating system equipped with a top-down circulating hot water boiler of the present invention, and FIG. 2 is an enlarged cross-sectional view of the subject matter of the present invention centered on an auxiliary chamber. 3 is a cross-sectional view including a cross section AA of FIG.

In the drawing, the auxiliary water chamber is shaped like a cylindrical container, and the water supply pipe 3 is erected in the upper center of the auxiliary water chamber 1, and the upper part of the water supply pipe 3 is connected to the water supply tank 2, thereby supporting the auxiliary water chamber 1 and the water supply tank. (2) is communicated via the valve assembly 9. A branch pipe 4 is attached to an intermediate position of the water supply pipe 3 so that the return end of the heating pipe is attached.

The auxiliary water chamber 1 is a structure which is loaded by the upper body and the lower body, and the upper body and the lower body are supported by the flange part 8 to support the valve assembly 9 fitted between the upper body and the lower body.

The valve assembly 9 has a valve portion composed of a central shaft 11, a valve disc 12 provided on the central shaft, and a cylindrical float 13 attached to the lower portion of the central shaft 11, and a valve hole in the center thereof. A diaphragm 14 is installed. The sealing ring 14 'is attached to the lower edge of the valve hole of the diaphragm. A valve box consisting of an upper valve box 15 and a lower valve box 16 is attached to the upper and lower portions of the diaphragm 14, and the upper valve box 15 and the lower valve box 16 are at the center thereof. A center hole is formed through which the shaft 11 is movable up and down, and at the same time, a plurality of communication holes 17 are formed around the center hole with a sufficient size so that water can pass freely. The material of the seal ring 14 'attached to the valve hole of the diaphragm 14 and the valve plate 12' of the valve disc 12 is preferably made of a heat-resistant synthetic resin material.

The valve assembly 9 configured in this way is housed freely in the auxiliary water chamber 1 in its vertical movement and swing. The upper communication pipe 5 is connected to the boiler immediately below the flange portion 8 of the auxiliary water chamber 1, and the check valve is allowed to enter the boiler but not to discharge from the boiler. 51) is attached. In addition, the lower side communication tube 6 is connected to the boiler side of the side adjacent to the lower surface of the water chamber body, and a check valve 61 is installed in the communication tube 6 to block the inflow of the auxiliary water chamber 1 from the boiler. In the auxiliary water chamber at the opposite position thereof, a hot water discharge pipe 7 for supplying hot water to the heating device is installed and connected to the pipe. And between the communication pipe 6 and the discharge pipe (7) in the lower circumferential direction of the auxiliary water chamber (1) protrudes in the circumferential direction is formed in the entire circumference so that the hot water ejected from the communication pipe (6) is pivoting do.

A check valve 71 is attached to the hot water discharge pipe 7 so that the water in the auxiliary water chamber 1 is discharged into the hot water distribution system through the check valve 71 and the water of the hot water distribution system is not allowed to flow back into the auxiliary water chamber 1. Thereby, the hot water is configured to be supplied to a predetermined heating system, and the plurality cooled through the heating system is configured to return to the auxiliary water chamber 1 through the valve assembly 9 through the branch pipe 4.

Next, the working zone of the present invention will be described. Assume that water is now filled in the boiler and auxiliary water chamber (1). That is, since the mouth 13 in the auxiliary water chamber 1 is down and the water in the boiler is now heating, the water flowing into the boiler through the check valve 51 is virtually stopped. As the water is convection, the water will be heated, and the pressure will increase due to the closing of the check valve 51, and the water will begin to flow through the lower communication path 6, and when the water is ejected, the space inside the boiler will be filled with steam. The pressure inside the boiler and the auxiliary water chamber 1 is equally high, so that hot water will be discharged into the hot water discharge pipe 7 through the check valve 71. When the hot water is discharged to the hot water discharge pipe 7 by the pressure in this way, the water in the auxiliary water chamber 1 is reduced, so that the mouth 13 is settled downward due to the decrease in the water level, which causes the valve assembly 9 to be opened. The passage of the cold water into the auxiliary water chamber (1) is formed, and at the same time, the inlet inertia of the incoming cold water and the pressure drop in the communication path (5) generated by cooling the inlet cold water around the check valve (51) are checked. The valve 51 is opened to form a passage through which water enters the boiler room. It is effective to use this check valve 51 having a check ball which is particularly sensitively open.

Thus, when water is continuously introduced to fill the boiler and water is filled in the auxiliary water chamber 1, the float 13 is floated by the buoyancy force of the water in the auxiliary water chamber 1. However, in this state, when the valve assembly 9 is not completely sealed and the boiler room is heated and the water in the boiler is boiled, the water is ejected through the check valve 61 of the lower communication pipe 6 by the expansion of the water. . In addition, the valve assembly 9 is reliably and quietly by generating the pivoting motion of the water in the guide passage 10 below the auxiliary chamber, thereby providing the pivoting force to the float 13 and the aid of the rotational force and the buoyancy of the float 13. The pressure of the boiler chamber and the auxiliary water chamber 1 rises and the hot water is discharged through the check valve 71 by the pressure in the boiler chamber and the auxiliary water chamber 1 as described above. Is discharged to) to perform a predetermined heating operation, the plurality is returned to the auxiliary water chamber 1 again through the branch pipe (4), and the same operation is repeated, the top-down hot water boiler is performed without generating noise Will be provided.

Claims (3)

In a downwardly circulating hot water boiler having an auxiliary water chamber, a valve assembly (9) having a cylindrical float (13) embedded in the auxiliary water chamber (1), and an upper communication tube attached between the auxiliary water chamber (1) and the boiler. (5) and the lower communication pipe (6), the hot water discharge pipe (7) attached to the outer peripheral wall of the auxiliary water chamber (1) opposite the lower communication pipe (6), and the auxiliary water chamber between the lower communication pipe and the hot water discharge pipe (7). Downward circulation type hot water boiler, characterized in that having a guide path 10 formed on the outer periphery of (1). 2. The upper communication tube (5) according to claim 1, wherein the upper communication tube (5) has a check valve (51) which permits flow only from the auxiliary water chamber (1) into the boiler, and the lower communication tube (6) flows from the boiler to the auxiliary water chamber. Downflow type hot water boiler, characterized in that it has a check valve 61 is allowed, and the hot water discharge pipe (7) has a check valve (71) is allowed to flow only from the auxiliary water chamber to the hot water pipe. 3. The guide path (10) in the auxiliary water chamber (1) according to claim 2, wherein the lower communication pipe (6) and the hot water discharge pipe (7) are attached in a tangential direction to the outer circumferential wall of the auxiliary water chamber (1). Downward circulation hot water boiler, characterized in that configured to be discharged while rotating along.