JPH01310203A - Pulse burner - Google Patents

Abstract

PURPOSE:To reduce cost with a forced supply air and forced ignition at the beginning of combustion being conducted by a handle for manual operation and remove restrictions for the conditions of installment by making it possible to drive a fan for forced air supply and a power source generator used for an ignition controller to work in conjunction between the two. CONSTITUTION:A supply air route for combustion is constituted with a fan F for forced supply air, air chamber 13, and air check valve V1 to prevent back flow on the air in this order, and at the time of starting a handle 1 for manual operation being turned, the fan F and the generator D as an electric power source used as an ignition controller work in conjunction by an interlinking shaft 5 and turned so that a burner detonates and burns by the sparks from an ignition plug P with forced supply of a mixture gas by the fan F and electric current generated by the generator D. In, for instance, a few seconds the burner conducts continuously self-combustion by repeating the cycle of detonation, expansion, and exhausting under the self-ignition by self-supply air by the negative pressure during combustion operation and the heat in the exhaust gas from combustion, etc. Accordingly there is no need for commercial power source etc. and the construction is simplified and a cost-down is enabled.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pulse combustor that is effective for use as a heating source for hot water storage type water heaters and the like.

[Conventional technology]

Pulse combustors prefer explosive combustion through forced supply of fuel and combustion air to the combustion chamber and forced ignition only during the initial stage of combustion, and after WI 11, supply is performed under self-supply and self-ignition. Combustion is automatically continued by repeating the cycle of air, explosive combustion, expansion, and exhaust.However, in the past, forced air supply and forced ignition in the early stage of combustion were described, for example, in Japanese Patent Laid-Open No. 74410/1983. As shown, an electric blower is used for forced air supply, and when starting the pulse combustor, the starter air supply blower is activated to park the inside of the combustion chamber and provide fresh air. After filling the
It is a device that supplies fuel and ignites it (see pages 4 and 7 of Book I), and for forced ignition, commercial M is generally used.
The structure uses an RI to turn on electricity when necessary and emit sparks from the ignition plug via an ignition controller (igniter).

[Problem to be solved by the invention]

As mentioned above, forced air supply and forced ignition in a pulse combustor are performed for a certain period of time (for example, a few seconds) at the beginning of combustion, and then combustion will continue under self-supply air and self-ignition. Therefore, when the pulse combustor is applied to, for example, the heating M of a small domestic water heater, the conventional technology described above does not result in a complicated structure and high cost. Since it uses a commercial power source, there are problems such as restrictions on where it can be installed.

The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to reduce costs by manually performing forced air supply and forced ignition at the initial stage of combustion in a pulse combustor. It is an object of the present invention to provide a pulse combustor which is particularly effective when applied as a heating source for small-sized home water heaters, etc., by eliminating constraints on installation conditions.

[Means to solve the problem]

In order to achieve the above object, the pulse combustor of the present invention performs explosive combustion under strong air supply and forced ignition only at the initial stage of combustion, and after a gradual period of time, under self-supply air and self-ignition. A pulse combustor that automatically maintains combustion by repeating a cycle of air supply, explosive combustion, expansion, and exhaust, as claimed in claim 1.
In this invention, a 7T ton for forced air supply and a dynamo for the power supply of the ignition controller are provided so that they can be driven in conjunction with a manual rubbing handle, so that forced air supply and forced ignition at the initial stage of combustion can be performed manually. It is. Furthermore, in the invention of claim 2,
A dynamo for forced air supply and a power source for the ignition controller are connected to the rotating shaft of the manual operation handle via a speed increaser to increase the speed of these air supply, so that the power supply is forced despite manual operation. The X-feeding capability of the 7γ air supply crucible and the X-generating capability of the power supply dynamo have been improved.

[Effect]

In the pulse combustor according to the present invention configured as described above, in the invention according to claim 1, when the manual operation handle is rotated, the power source for the forced air fan and the ignition u controller can be connected. Since the dynamo rotates in conjunction with each other, forced air supply and forced ignition in the early stages of combustion can be performed manually using air from the forced air fan and sparks from the current from the power supply dynamo. In the invention described in item 2, a speed increaser is provided to increase the speed of the rotation of the manual operation handle and transmit it to the forced air supply 7γ turn and the power supply dynamo. The air blowing capacity of 7 tons for forced air supply necessary and sufficient for ignition and the generation capacity of the power supply dynamo can be obtained despite manual operation, and the speed increaser, 7 tons for forced air supply, and ? ! Since the source dynamo is directly connected to the rotating shaft of the manual operation handle, these can be easily and reliably linked.

〔Example〕

Embodiments of the pulse combustor according to the present invention will be described below with reference to the drawings.

In Figures 1 to 3, (F) is a forced air supply fan, for example, composed of a sirocco fan, whose discharge port (3) is connected to an air chamber (described later) via an air supply groove (4). It's forcing me.

(D) is a power supply dynamo for the 7 igniter (C), and (1) is a manual operation handle; The fan (F) and the dynamo (D) for the M source of the ignition controller (C) are installed on the same axis via the interlocking shaft (5), so that they can be driven in conjunction with the manual operation handle (1). The manual operation handle (1) is provided so that forced air supply and forced ignition at the initial stage of combustion can be performed manually.
The interlocking shaft (5) of the forced air supply 7Tton (F) and the power supply dynamo (D) are connected to the rotating shaft (2) of the By increasing the speed and transmitting the rotation to the forced air intake 7T ton (F) and the power supply dynamo (D) using the speed increaser (E), forced air intake at the early stage of combustion is achieved even though it is a manual NJ operation. The air blowing capacity of 7 tons (F) for forced air supply and the power generating capacity of the power supply dynamo (D) are both necessary and sufficient for strong controlled ignition.

The above-mentioned ignition controller (C), for example, as illustrated in the block diagram of FIG. In the circuit (7), a structure is used in which 1lIL of every explosion/combustion cycle (for example, 80 Hz) is supplied to the spark hydrant (P) via the booster circuit (8), and a speed increaser (E) is used. It is better to use something that is nimble, such as a road IJ or a gear mechanism, and that can speed up smoothly and reliably.

Note that (9) is a mixing chamber that mixes fuel gas and combustion air, (10) is a combustion chamber that explodes and burns the air-fuel mixture mixed in the mixing chamber (9), and (11) is the combustion chamber (10). ) is a combustion chamber head installed at the air-fuel mixture inlet to prevent the combustion flame from going around to the air-fuel mixture and to promote the inflow of the air-fuel mixture. This is a flame trap installed in the engine to rectify the air-fuel mixture and prevent bank fires. (13) is an air chamber, which is used to equalize the pressure of the air from the forced air supply fan (F) - (V+) is an air backflow prevention valve; Provided at the air intake,
A disc-type vibrating valve is used. The forced air supply fan (F) → air chamber (13) → air backflow prevention valve (
\/, ) constitute a combustion air supply fE, and combustion air is supplied to the mixing chamber (9) through this path. (14) is a gas chamber, gas supply W(1
This is to equalize the pressure of the fuel gas supplied from 5). (16) is a snout nozzle stand, which is led out from the gas chamber (14) and has a gas check valve (■2) installed inside it.
), and a 〃s distributor (1
7). A disc-type vibration valve is used as the 77's backflow prevention valve (v2), and the 77's distributor (17's
) is made to protrude into the mixing chamber (9), and by adjusting the amount of protrusion and the direction of the nozzle hole (17a), it can be adapted to various types of gases having different combustion speeds. A fuel gas supply path is constituted by the gas supply pipe (15) → the gas damper (14) → the gas backflow prevention valve (■2) → the gas valve stand (16) → the gas distributor (17),
Fuel is supplied to the mixing chamber (9) through this path. (18) is the tail pipe connected to the combustion exhaust gas outlet of the combustion chamber (10), (1) is the electric wire connecting the α large controller (C) and the spark plug (P), (20) is the forced This is the mounting frame for the 7T engine for air supply (F) and the power supply engine (D).

When the pulse combustor of the present invention is applied to a heating source of a hot water storage type water heater, a combustion chamber (10) and a tail pipe (18) are provided in a hot water tank for heat exchange. *In addition, in a pulse combustor, there is generally a gas backflow prevention valve in the M path for large fuel supply to the mixing chamber (9) and the combustion air supply path to prevent backflow of combustion exhaust gas during explosive combustion. (■2)
Although an air backflow prevention valve (1) is provided, these can be omitted by other means and are not necessarily limited to this embodiment.

In the above embodiment, the pulsating explosive combustion of the pulse combustor consists of the fuel gas supplied from the fuel gas supply route to the mixing chamber (9) and the combustion air supplied to the mixing chamber (9) from the combustion air supply route. The mixture is mixed with commercial air in the mixing chamber (9), and the mixture is sent to the combustion chamber (10) for explosive combustion.
When 1) is rotated, in the invention as claimed in claim 1, the forced air supply 7T ton (F) and the power supply dynamo (D) of the ignition controller (C) rotate in conjunction with each other. Forced feeding of mixture by air from moon fan (F)? ! !
The generated current of the source dynamo (D> causes a spark to fly from the ignition plug (P), causing explosive combustion and forced ignition, but gradually (for example, after a few seconds) the pressure rises to the negative pressure during combustion operation. Due to self-ignition caused by self-supply air and combustion exhaust heat, the cycle of air supply, explosive combustion, expansion, and exhaust is repeated approximately 80 to 100 times per second, resulting in continuous self-combustion. Operation handle (1)
Even if the rotation operation is stopped, its combustion continues, and the combustion exhaust gas is sent to the tail pipe (18) every cycle.
I will be guided.

In the above series of combustion operations, in the invention according to claim 2, the rotation of the manual grinding handle (1) is controlled by the forced air supply fan (
F) and the power supply dynamo (D) are transmitted at increased speed by the additional air (E), making it easy to obtain sufficient air flow and current necessary for forced air supply and forced ignition in the early stages of combustion. .

〔Effect of the invention〕

Since this invention has been made as described above, it has the following effects.

In the invention of claim 1, the 7T for forced air supply in the pulse combustor and the dynamo for the power supply of the ignition controller are provided so that they can be interlocked by the manual operation handle, so that when the manual stirring operation handle is rotated, The forced air supply fan and the power supply dynamo work together, and the forced air supply and forced ignition at the early stage of combustion can be performed manually by blowing air from the forced air fan and sparking from the current from the power supply dynamo. Furthermore, in the invention of claim 2, a forced air supply fan and a power supply dynamo are connected to the rotating shaft of the manually operated/) handle via a speed increaser for increasing the rotational speed of these.
It is possible to make the air blowing capacity of 7 tons for forced air supply and the power generation capacity of the power supply dynamo necessary and sufficient for forced air supply and forced ignition despite manual operation.

Therefore, not only is the installation condition advantageous because commercial electric power is not required, but the cost can be reduced by simplifying the structure. The power supply dynamo is directly connected to the rotating shaft of the manual operation handle, making it easy to operate.I especially like the fact that the interlocking works smoothly and reliably, especially for small home water heaters. It is useful when applied to heating sources, etc.

[Brief explanation of the drawing]

FIG. 1 is an overall cross-sectional view showing an embodiment of a pulse combustor according to the present invention, FIG. 2 is a cross-sectional view of only the main part thereof, and FIG.
The figure is a block diagram showing an example of an on/off fire controller. (F)...Forced air supply fan, (C)...7α fire controller, (D)...Power supply m dynamo, (1)...Manual power supply handle, (E)... Speed increaser. Patent applicant Paloma Industries Co., Ltd. Figure 1 Figure 2. Figure 3 L: 1 d

Claims (1)

[Claims] 1. Explosive combustion occurs only in the initial stage of combustion under forced air supply and forced ignition, and after a gradual lapse, air is supplied under self-supply and self-ignition.
In a pulse combustor that automatically continues combustion by repeating the cycle of explosive combustion, expansion, and exhaust, there is a handle for manual operation of the power supply dynamo (D) for the forced air supply fan (F) and ignition controller (C). (1) A pulse combustor characterized in that it is provided so as to be able to be driven in conjunction with each other. 2. Install the forced air fan (F) and the power supply dynamo (D) for the ignition controller (C) on the rotating shaft (2) of the manual operation handle (1) to increase their rotational speed. Speed machine (E)
The pulse combustor according to claim 1, wherein the pulse combustor is connected via a.