TW201741031A - A gas nozzle with gas regulation which is applied to various gas cookers - Google Patents

Abstract

The present invention relates to a gas nozzle with gas regulation which is applied to various gas cookers. The gas nozzle includes: a nozzle unit which includes an outlet at one end and an inlet at another end thereof; and a regulation valve. The nozzle unit further includes: an elastic plug, a space, a stop ring partially disposed in the space, and a gas passage extending from the inlet to the outlet. The regulation valve is an annular piece of a predetermined thickness disposed in the space to closely abut against the elastic plug and the stop ring, and includes a first hole for insertion of the annular piece and a second hole with a diameter smaller than the first hole. The first and second holes are located a distance away from each other.

Description

Adjustable gas nozzle structure

The present invention relates to a gas output nozzle of a gas appliance, and more particularly to a nozzle structure that can be fitted to an adjustable gas volume of a different heat value gas source.

Domestic gas fuels in Taiwan are mainly classified into liquefied petroleum gas and natural gas. The main component of liquefied petroleum gas is propane (C ₃ H ₈ ), which is mixed with butane (C ₄ H ₁₀ ). It is a gas at normal temperature and pressure, and can be liquefied by pressurization (or cooling) and placed in a cylinder. , so commonly known as barreled gas.

However, natural gas and liquefied petroleum gas have different calorific values except for their composition. Among them, since natural gas is calculated by volume, the calorific value is low; and liquefied petroleum gas is calculated by weight, and the calorific value is high.

The so-called calorific value is the calories burned per kilogram of material, 16 grams of methane, 62.5 kilograms per kilogram, and the calorific value is 54937 kJ. If the unit is converted into a card, 1 kilogram of methane can be completely burned to produce 11,946 kcal; Since natural gas is measured in volume, its calorific value is 8900 kcal to 9900 kcal per cubic meter. As for propane-mole 44 grams, one kilogram of 22.7 moles, the calorific value is 50045 kJ; and the liquefied petroleum gas system is measured by weight, so it is about 12,000 kcal of net calorific value per kilogram.

Furthermore, "nozzle aperture and outlet pressure are important factors in determining the size of firepower. Liquefied petroleum gas pressure is high and the flow rate is fast," taking a gas furnace as an example: "The nozzle of a barrel gas furnace is smaller than the nozzle of a natural gas furnace. In order to achieve the same thermal heating value, the gas furnace using liquefied petroleum gas has a small gas output and a small nozzle, and the gas furnace using natural gas has a large gas output and a large nozzle. However, if the nozzles with smaller caliber of gas-fired water heaters and gas furnaces are connected to natural gas with lower pressure and heat value, the firepower will be weak due to the small amount of gas output. On the other hand, if the natural gas water heater is installed in the barrel of gas, the consequences will be more serious, because the nozzle diameter of the natural gas is relatively large, and the pressure of the barrel is relatively large. Once the gas output of the liquefied petroleum gas is too large, it is ignited. Excessive fuel waste, prone to incomplete combustion, and carbon deposits on the bottom of the pot; but heavy fires may cause fire, especially water heaters are more dangerous.

If, in view of the difference in the calorific value of natural gas and liquefied petroleum gas, the gas nozzles with different pore sizes are used. Please refer to Figure 1 (A) for a natural gas gas nozzle and 1 (B) for a liquefied petroleum gas gas nozzle. The natural gas has a small calorific value and therefore requires a large gas output, so the nozzle hole X is also large. On the contrary, since the liquefied petroleum gas has a large calorific value, the desired combustion effect can be obtained with a small gas output, so the nozzle hole Y Smaller, and if you want to change the source of gas in the future, it is very inconvenient for the user to purchase gas nozzles with different apertures. Even for some people who do not understand natural gas and liquefied petroleum gas, they need to connect the corresponding aperture gas nozzle. The user, and thus the wrong nozzle, causes the above-mentioned danger to occur; therefore, the inventors have solved the above problems caused by the conventional nozzle, and have invented a barrel-mounted gas or natural gas gas that can cope with the pressure of two different calorific values. Adjust the nozzle structure of the gas volume.

It is an object of the present invention to provide a nozzle structure that is adjustable in volume, in response to sources of gas of different heating values.

Another object of the present invention is to facilitate production at the manufacturing end, reduce inventory, and facilitate inventory and cost reduction at the sales end, and adjust the calorific value pressure to fit the size of the barrel gas or natural gas gas at the time of installation, so that the consumer (use ) No need to make any subsequent adjustments for the best security.

In order to achieve the above objective, the nozzle structure of the present invention can be applied to various gas appliances, and mainly comprises: a nozzle unit having an outlet end disposed at one end of the nozzle and an intake end disposed at the other end. An elastic plug device, a preset space, and a resisting ring member adapted to be partially in the preset space, and a passage from the air outlet end to the inlet end are sequentially disposed from the air outlet end toward the air inlet end Airway airway; and

a hole regulating valve is formed as a block of predetermined thickness and is accommodated in a part of the preset space while being in close contact with the elastic plug device and the abutting ring member, the hole regulating valve has a first a through hole and a second through hole having a smaller aperture than the first through hole, and a relatively spaced distance between the first through hole and the second through hole; thereby, when the hole adjusting valve is rotated, the first through hole corresponds to When the air passage and the second through hole correspond to the elastic plug device, the gas flow rate is increased, and when the hole regulating valve is rotated, the second through hole is connected to the air passage and the first through hole corresponds to the air passage. When the plug device is elastic, the gas flow will be reduced.

Preferably, the elastic plug device is sandwiched between the air guiding channel and the inner wall of the nozzle unit and is composed of a spring and a pressing ball.

Preferably, the nozzle unit further defines a strip opening corresponding to the joint position of the hole regulating valve, and the strip opening is such that the side of the hole regulating valve is exposed outside the nozzle unit tube.

Preferably, the side of the hole regulating valve is further provided with at least one hole slot, and a lever is inserted from the outside of the nozzle unit through the strip opening.

Preferably, a connecting member is disposed on the inlet end side and connected to the abutting ring and has a thread, and the air guiding channel also penetrates from the connecting member through the connecting port.

Preferably, the nozzle unit further has a screw and a corresponding screwing hole, the screw hole is connected to the nozzle unit tube wall and partially abuts the ring member.

The present invention has at least the following effects, mainly by dialing the hole regulating valve by a predetermined angle, thereby adjusting the first through hole and the second through hole to respectively communicate with the air guiding channel, thereby achieving the regulation of the gas intake amount. The efficacy, and the operating principle of this mechanism to respond to different heat values of gas heat sources (natural gas and liquefied petroleum gas).

Referring to FIG. 2 to FIG. 6 , a nozzle structure of an adjustable volume according to a specific preferred embodiment of the present invention is mainly composed of a nozzle unit 20 and a hole regulating valve 30, wherein:

The nozzle unit 20 has an air outlet end 21 disposed at one end of the nozzle unit 20 and an air inlet end 22 disposed at the other end. An elastic plug device 23 is sequentially disposed from the air outlet end 21 toward the air inlet end 22, a preset space 24 and a resisting ring member 25 in a portion of the pre-set space 24, and an air passage 26 extending from the air outlet end 21 to the air inlet end 22;

The hole regulating valve 30 is formed as a block having a predetermined thickness and is accommodated in a part of the preset space while being in close contact with the elastic plug device and the resisting ring member. The hole regulating valve has a first a through hole and a second through hole having a smaller aperture than the first through hole, and a relatively spaced distance between the first through hole and the second through hole;

According to the above structure, the configuration is characterized in that the hole regulating valve 30 functions as a gas volume adjusting function on the air guiding passage 26, and when the first through hole 31 communicates with the air guiding passage 26, "as shown in FIG. 3 and FIG. The gas flow rate will be increased. When the second through hole 32 is in communication with the air guiding passage 26, as shown in FIG. 5 and FIG. 6, the gas flow will be reduced.

The elastic plug device 23 is disposed on the air guiding channel 26 and the inner wall of the nozzle unit 20, and is composed of a spring 231 and a pressing ball 232 that abuts one end of the hole regulating valve 30. The pressing ball 232 is partially caulked into the first through hole 31 or the second through hole 32, so that the hole regulating valve 30 is fixed without any rotation.

In the preferred embodiment of the present invention, a strip opening 26 is formed in the outer side wall of the nozzle unit 20 and corresponding to the position of the hole regulating valve 30, The strip opening 26 is configured such that the side of the hole regulating valve 30 is exposed outside the tube of the nozzle unit 20; and the side of the hole regulating valve 30 is further provided with a hole 33 for supplying a lever 34 from the nozzle The outside of the unit 20 is inserted through the strip opening 26, and is installed to allow the user to toggle the lever 34 so that the hole regulating valve 30 can freely rotate 45, 90, 135, 180, 270 degrees. The function of switching the first through hole 31 and the second through hole 32 to communicate with the air guiding channel 26 is achieved. It is worth mentioning that the lever 34 is not an essential component of the present invention, and is preferably only a preferred embodiment of the present invention. An example of the embodiment is provided to enhance the user's ease of use. If the operation of the lever 34 is omitted, the user uses a suitable tool to dial the hole regulating valve 30 exposed in the strip opening 26, The same effect of regulating the volume can be achieved.

Furthermore, in order to install the present invention on the gas output device, in the preferred embodiment, a connection is provided on the side of the intake end 22 and connected to the abutment ring member 25 and has a threaded connection. The air duct 26 also engages from the air inlet end 22 and penetrates the connecting member 40.

Furthermore, in view of the adjustable gas volume nozzle structure of the present invention, wherein the nozzle 20 is detachable, in the preferred embodiment, a screw 28 and a corresponding screwed hole 29 are used. And the screw hole 29 is connected to the pipe wall of the nozzle unit 20 and partially abuts the ring member 25, such that the pin is engaged with the nozzle unit 20, and the nozzle unit 20 is fixed and detachably resisted therein. Inter-ring member 25.

As described above, the structure of the preferred embodiment of the present invention and its application aspect have two main functions: (1) The orifice regulating valve 30 for adjusting the intake air amount is adjusted by rotating the hole. The valve 30 switches the first through hole 31 and the second through hole 32 to respectively connect the air guiding passage 26 to achieve the effect of adjusting the gas intake amount, and uses the mechanism of operation to respond to different heat values of the gas heat source (natural gas and Liquefied petroleum gas); and (2) detachable nozzle structure 20, so that users do not have to rely on gas dealers to send technicians to the government to repair or replace, they can disassemble and adjust their own gas structure nozzle device.

Conventional knowledge
X‧‧‧ natural gas gas nozzle hole
Y‧‧‧lique liquefied petroleum gas gas nozzle hole according to the invention
20‧‧‧Nozzle unit
21‧‧‧Exhaust end
22‧‧‧ intake end
23‧‧‧Elastic plug device
231‧‧‧ Spring
232‧‧‧Forcing the sphere
24‧‧‧Preset space
25‧‧‧Resist ring parts
26‧‧‧ airway
27‧‧‧ strip opening
28‧‧‧ screws
29‧‧‧ screw holes
30‧‧‧ hole regulating valve
31‧‧‧First through hole
32‧‧‧Second through hole
33‧‧‧ hole slot
34‧‧‧
40‧‧‧Connecting parts

Figure 1A is a conventional gas nozzle for natural gas. Figure 1B is a conventional gas nozzle for liquefied petroleum gas. 2 is an exploded perspective view of a preferred embodiment of the present invention. 3 is a perspective perspective view of a gas-enhancing configuration of a preferred embodiment of the present invention. 4 is a cross-sectional view showing a configuration of a gas gain amount in accordance with a preferred embodiment of the present invention. Figure 5 is a perspective perspective view of a gas reduction configuration in accordance with a preferred embodiment of the present invention. Figure 6 is a cross-sectional view showing a configuration of a reduced air volume in accordance with a preferred embodiment of the present invention.

20‧‧‧Nozzle unit

21‧‧‧Exhaust end

22‧‧‧ intake end

23‧‧‧Elastic plug device

231‧‧‧ Spring

232‧‧‧Forcing the sphere

24‧‧‧Preset space

25‧‧‧Resist ring parts

26‧‧‧ airway

27‧‧‧ strip opening

28‧‧‧ screws

29‧‧‧ screw holes

30‧‧‧ hole regulating valve

31‧‧‧First through hole

32‧‧‧Second through hole

33‧‧‧ hole slot

34‧‧‧

40‧‧‧Connecting parts

Claims (7)

The nozzle structure of the adjustable gas volume is applied to a gas appliance, and the nozzle structure of the adjustable gas volume comprises: a nozzle unit having an outlet end disposed at one end of the nozzle unit and an intake end disposed at the other end, The air outlet end is provided with an elastic plug device, a preset space and a resisting ring member in a part of the preset space, and a gas passage from the air outlet end to the air inlet. And a hole regulating valve, which is a block of predetermined thickness and is accommodated in a part of the preset space while being in close contact with the elastic plug device and the abutting ring member, the hole The regulating valve has a first through hole and a second through hole having a smaller aperture than the first through hole, and the first through hole and the second through hole maintain a considerable spacing; thereby, when the hole adjusting valve is rotated When the first through hole corresponds to the air guiding channel and the second through hole corresponds to the elastic plug device, the gas flow rate is increased, and when the hole regulating valve is rotated, the second through hole is connected to the air guiding channel and the first through hole a through hole corresponding to the elastic plug When would reduce the gas flow. The nozzle structure of the adjustable air volume according to claim 1, wherein the elastic plug device is sandwiched between the air guiding channel and the inner wall of the nozzle unit and is composed of a spring and a pressing ball. The nozzle structure of the adjustable gas volume according to claim 1, wherein the nozzle unit further defines a strip opening corresponding to the joint position of the hole regulating valve, and the strip opening is arranged on the side of the hole regulating valve垣 is exposed outside the nozzle unit tube. The nozzle structure of the adjustable air volume according to claim 3, wherein the side of the hole regulating valve is further provided with at least one hole slot for inserting a lever from the outside of the nozzle unit through the strip opening . The nozzle structure of the adjustable air volume according to claim 1, further comprising a connecting member disposed on the inlet end side and connected to the abutting ring member and having a thread, and the air guiding channel is also The inlet port is connected through the connecting member. The nozzle structure of the adjustable air volume according to claim 1, wherein the nozzle unit further has a screw and a corresponding screwing hole, the screw hole is connected to the nozzle unit wall and the partial abutting ring. Piece. The adjustable gas volume nozzle structure according to claim 1, wherein the hole regulating valve is rotated by a predetermined angle to switch the first through hole and the second through hole to correspond to the air guiding channel.