KR950010617B1 - Gas valve - Google Patents

Abstract

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Description

Gas supply line dust removal valve of gas burner

1 is a schematic configuration diagram of a gas boiler.

2 is a state attached filter for removing dust of a conventional gas valve.

3 is an exploded perspective view of the present invention dust removal valve.

4 is a cross-sectional view of the combination of the present invention dust removal valve.

5 is an attached state of the dust removal valve of the present invention.

6 is a side cross-sectional view of a main portion of the dust removal valve of the present invention.

* Explanation of symbols for main parts of the drawings

11: dust removal valve 12: valve body

12a: support protrusion 13: inlet pipe

14: outlet pipe 15: filter switch

16,16a, 16b, 16c: filter 17: knob

18: rotating rod 19: bushing

20: O-ring 21: dust collector

22: cap

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas supply pipe dust removal valve of a gas combustor, and in particular, in supplying gas to a burner of a heater using gas as fuel, a dust removal valve is connected and installed before a supply / blocking ON-OFF valve. The present invention relates to a valve that can be used semi-permanently without disassembling and replacing the filter, as well as to easily remove dust.

In general, the configuration of the gas boiler for heating is a heating water supply pipe (1), hot water supply pipe (2), heating water outlet pipe (1a), hot water outlet pipe (2a), gas supply pipe (3) as shown in FIG. A pipe is formed and an ON-OFF valve 4 is installed in the gas supply pipe 3 to supply and shut off gas to the burner 5 in the upper portion thereof, and the heat exchanger 6 above the burner 5. And, the duct 7 is installed on the upper portion and the circulation pump 8 is installed in the heating water supply pipe (1) while the three-way valve (9) is installed on the heating water outlet pipe (1a) bar, piping When foreign matter or dust during operation or rust generated during long-term use remains or adheres to the gas supply pipe 3, when the gas in the gas supply pipe 3 is mixed with the foreign matter and flows into the ON-OFF valve 4, it is turned on. -The valve which controls the gas pressure due to foreign matter and dust in the parts such as diaphragm, packing, and spring in OFF valve (4). Since the normal operation is inhibited, the combustion control of the burner 5 becomes poor, and in particular, when the port part is closed by foreign matter, dust or rust, there is a risk of explosion of the gas supply pipe 3 or the burner 5.

In order to prevent the incorporation of foreign matter, dust or rust in the ON-OFF valve 4, the filter 10 is conventionally attached below the ON-OFF valve 4 as shown in FIG. Foreign matter is trapped in the filter 10 and dust accumulates to block the inlet of the ON-OFF valve 4, or foreign matter or dust blocks the inlet of the ON-OFF valve 4, or foreign matter or dust enters the ON-OFF valve. It becomes impossible to use it.

Therefore, the on-off spit 4 has to be disassembled and cleaned daily, and a new filter must be replaced.

On the other hand, when disassembling and cleaning the ON-OFF belt 4, it is difficult to remove fine dust and the cleaning operation is not easy.In case of frequent disassembly of the ON-OFF valve 4, the connection part of the gas supply pipe 3 is It may be worn or damaged.

The present invention solves all the disadvantages of the prior art as described above, by connecting the dust removal valve having a plurality of filters before the ON-OFF valve to easily remove and remove foreign substances and dust from the gas and ON-OFF In order to allow the gas to be supplied in a stable state without replacing the valve or frequently replacing the filter, the present invention will be described in detail with reference to the accompanying drawings.

The dust removal valve 11 is connected to the gas supply pipe 3 before the ON-OFF valve 4 installed in the burner which is a gas combustion device, and the dust removal valve 11 is connected to the valve body 12 and the inlet and outlet. A plurality of filters (16) (16a) and (16b) formed of pipes (13) and (14) in the circumferential direction of the filter opening and closing member (15) having a cylindrical shape such that the filter is easily installed within the valve body (12). One side end of the filter opening and closing (15c) is coupled to the rotation rod 18 of the handle 17 is exposed to the outside of the valve body 12, the coupling rod (18c) is coupled to each other symmetrically, As the bushing 19 for supporting is screwed to the valve body 12, the O-ring 20 is coupled between the bushing 19 and the filter switch 15 to seal the inside of the dust removing valve 11, The other end of the filter opening and closing 15 is fitted to the support protrusion 12a protruding from the inner wall of the valve body 12, the upper surface of the handle 17 is implemented in the upper, lower, left, right A mark is formed, and a dust collecting tube 21 protrudes at the bottom between the valve body 12 and the inlet tube 13 so as to communicate with the lower side of the filter 16b, and a cap at the lower end of the dust collecting tube 21. (22) is a structure in which detachability is easily combined.

In the present invention as described above, as shown in FIG. 5, the dust removal valve 11 can be connected to the inlet of the ON-OFF valve 4 to be used. (In the present invention, for example, the position is adjusted to be "1" on the upper side, "3" on the lower side, "4" on the right side, and "2" on the left side). Likewise, the filters 16 and 16b are positioned at the upper and lower portions thereof to be in communication with the inlet and outlet tubes 13 and 14. When the gas is supplied through the gas supply pipe 3 as shown in FIG. Mixed foreign matter, dust, and dust rust are blocked by the lower filter (16b) of the filter switch (15), filtered off, collected by the dust collection pipe (21), and separated from foreign matter, dust, dust, and rust. The gas is discharged to the outlet pipe 14 through the inner space of the lower filter 16b and the filter switchgear 15 and the upper filter 16. It will be.

During the process, foreign matter, dust, dust rust, etc., which are not filtered by the lower filter 16b, in particular, dust, dust, etc. move through the inner space of the lower filter 16b and the filter switch 15 together with the gas, Since it is filtered by the filter 16, only the clean and clean gas is introduced into the ON-OFF valve 4 along the outlet pipe (14).

On the other hand, when the burner 5 is in a poor combustion condition after long-term use or when the filter is to be replaced due to the necessity of regular inspection, the knob 17 is rotated at an angle of 90 ° C in the left or right direction, and the upper side at the time of the left rotation is "4. ", The lower side is" 2 ", the left side is" 1 ", the right side is" 3 ", and the position of the filter opening / closure 15 is changed with the handle 17. When the right side is turned, the upper side is" 2 "and the lower side is "4", the left is "3" and the right is "1".

Therefore, since the same change to the position of the filter with the handle 17 rotated at an angle of 90 °, the replacement operation of the filter is made simply. In other words, it can be seen that the filter replacement operation is possible only by rotating the handle 17 by 90 °.

And the present invention is to be able to easily remove the foreign matter, dust, dust, rust and the like collected in the sluggish collector tube 21 by loosening the cap 22 is coupled to the lower end of the dust collector tube (21).

As described above, the present invention is capable of supplying cleaner gas to the ON-OFF valve by filtering a plurality of foreign substances, dust, rust and dust by attaching and forming a plurality of filters on the circumferential surface of the rotatable filter switch. In addition, this minimizes the mixing of foreign substances in the ON-OFF valve, enabling the ON-OFF valve to function without failure, and by switching the switch with a large number of filters attached to it so that the filter is replaced. The filter can be easily replaced without removing the dust removal valve, and unlike the conventional case where the foreign matter or dust stays in the ON-OFF valve and the gas supply pipe, the cap can be always removed to remove dust and foreign matter. And it is easy to use, and it is a useful invention with a wide range of applications and industrial contributions.

Claims (3)

A valve body 12 having an inlet and an outlet tube formed therein, and a plurality of filters mounted between the inlet and outlet tubes of the valve body 12 to filter dust and the filter opening and closing unit 15. And a handle 17 which is installed to be rotatable and adjusts the filter switch by the user, and is installed to be detachable by the user at the lower part of the filter switch, and collects the dust collected from the filter and includes a dust collector tube 21. Gas supply line dust removal valves for gas-fired equipment, etc. The gas according to claim 1, wherein the filter switch (15) is a cylindrical body having an inner space, and combines a plurality of mutually symmetric filters (16) (16a) (16b) (16c) in the circumferential direction thereof. Gas supply line dust removal valve of the combustor. The gas supply pipe dust removal valve according to claim 1, wherein the front surface of the handle (17) is provided with a position indication coincident with the number of filters (16) (16a) (16b) (16c).