Mixed gas production device

A technology of mixing gas and manufacturing equipment, which is applied in the direction of mixers, fluid mixers, gas fuel burners, etc., can solve the problem of high cost, and achieve the effect of noise reduction and noise reduction

Inactive Publication Date: 2013-09-18
ITO KOUKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to prevent this noise, it is considered to cover the entire device with a foam such as polyurethane, but it is difficult to call it a realistic method because of the high cost.

Method used

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  • Mixed gas production device

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Embodiment Construction

[0022] figure 1 A mixed gas production apparatus with a noise reduction device according to the present invention is shown. This apparatus is used when the raw material gas G and the combustion air A are mixed to produce the mixed gas M that matches the fuel calorific value of the city gas (12A, 13A, etc.) normally used by the user.

[0023] The apparatus is provided with: a venturi mixer 1 which mixes the raw material gas G with combustion air A; a noise reduction device 2 which reduces noise generated in the venturi mixer 1; and an air valve 3 which corresponds to the The supply pressure roughly adjusts the supply amount of the combustion air A.

[0024] The venturi mixer 1 includes a nozzle 4 for injecting the raw material gas G, and a narrow channel 5 that is coaxial with the nozzle 4 and is arranged slightly apart. The narrow passage 5 forms a constricted portion 6 in the vicinity of the inlet, and is formed in a conical shape whose inner diameter increases toward the o...

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PUM

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Abstract

The present invention reduces noise while a device is in operation without impairing a Venturi mixer's function of producing mixed gas. Source gas (G) and combustion air (A) are mixed by a Venturi mixer (1) to produce mixed gas (M). A parallel part (7) having a constant inner diameter in the direction of flow of the mixed gas (M) is provided so as to connect with the outlet side of the throat (5) of the Venturi mixer (1). The parallel part (7) is provided with a sound damping device (2) in which a cylindrical sound damping body (11) produced from foamed polyethylene is provided inside a tube body (10). By passing the mixed gas (M) through the sound damping body (11), noise generated when the source gas (G) and the combustion air (A) are mixed can be effectively reduced without affecting the flow of the mixed gas (M).

Description

technical field [0001] The present invention relates to an apparatus for producing a mixed gas, which is used in a case where a raw material gas is injected from a nozzle of a venturi mixer toward a narrow passage, and combustion air is sucked under the action of a negative pressure accompanying the injection, The raw material gas is mixed with combustion air to produce a mixed gas, and a noise reduction device for reducing noise accompanying the mixing is provided in the gas flow path of the mixed gas production apparatus. Background technique [0002] For example, as shown in Patent Document 1, a mixed gas production apparatus includes a raw gas tank, an air compressor, and the like, and the mixed gas production apparatus mixes raw gas (propane, etc.) supplied from the raw gas tank with combustion air A device that supplies this mixed gas to users in general households and the like. This device is especially used when the supply of city gas is temporarily stopped during d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F5/04F23K5/00B01F23/10
CPCF23D14/64F23D2210/00B01F23/10B01F25/31242
Inventor 平山明广神宝稔也
Owner ITO KOUKI KK
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