JPS5929920A - Combustion equipment - Google Patents

Abstract

PURPOSE:To contribute to energy saving and at the same time enable to control temperature surely and easily by a method wherein the supply of fuel is controlled by opening and closing a cut-off damper based upon the amount of fuel detected by a fuel leveler. CONSTITUTION:The fuel in a fuel hopper is carried by a conveyer 72 in a supply tube 6. At first, the cut-off damper 10 is open and the fuel is allowed to pile on a gas generating part 18. Under this condition, the signal of a rotary vane type level meter 20 issued through a level detecting part 22 brings the conveyer 72 to a standstill and at the same time closes the cut-off damper 10. After that, primary air is supplied through a primary air supply port 28 toward a grate 24 so as to generate combustible gas thereat in order to flow said gas through slits 26 into a combustion chamber 32. Secondary air is sucked through a secondary air supply port 34 and mixed with the combustible gas in order to be burnt completely. Due to the structure as mentioned above, no unfavorable flow of primary air is allowed and at the same time the amount of fuel necessary for burning properly is supplied, resulting in facilitating the control of stable burning rate.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion device, in particular, a closing damper is provided at a fuel inlet to ensure that the fuel inlet is closed, and a fuel leveler is provided in a fuel tank to prevent fuel from flowing. It controls the supply and also supplies a fixed amount of fuel.

The present invention relates to a fuel system that achieves effective fuel utilization and reliable temperature control.

BACKGROUND ART Conventionally, there is a device that operates a boiler outside a greenhouse and circulates warm water generated by the boiler through a pipe installed inside the greenhouse to maintain the temperature inside the greenhouse at a constant temperature. However, in this system, a boiler is installed outside the greenhouse, and the hot water produced by the boiler is transferred through a pipe, so there is a disadvantage that the heat cannot be used effectively.

Furthermore, because the conventional equipment does not have a combustion control device such as a shutoff damper or a fuel leveler, the fuel once supplied into the fuel tank is not further combusted even though the temperature inside the greenhouse has reached a sufficient temperature. This not only results in wasted fuel, but also causes the temperature to rise far above the desired temperature, which can even be dangerous. Also,
Because the structure is such that a large amount of fuel is injected into the fuel tank at once,
There is a danger that misfires or backfires may occur, leading to explosions, and improvements have been desired.

The object of the invention is therefore to eliminate the above-mentioned drawbacks.

A shut-off damper is provided at the fuel input port, and a fuel leveler is provided in the fuel tank, and the amount of fuel is detected by this fuel leveler, and the shut-off damper is opened or closed depending on the amount of fuel to control the fuel supply. , safe and stable combustion control is possible, and fuel is used effectively.

The object of the present invention is to realize a combustion device that contributes to energy saving and achieves reliable and easy temperature control.

In order to achieve this object, the present invention provides a fuel inlet at the top of the fuel tank, connects a conveyor for carrying in fuel to this fuel inlet, and provides a shut-off damper at the fuel inlet to connect the fuel inlet to the bottom of the fuel tank. A rosdol is installed, and a combustion chamber is installed below the losdol.

A primary air supply port is provided in the vicinity of the rostrum of the fuel tank, and a secondary air supply port is provided in the combustion chamber.

The present invention is characterized in that the fuel tank is provided with a fuel leveler that detects the amount of fuel, and the conveyor and the shut-off damper are operated depending on the amount of fuel.

Embodiments of the present invention will be described in detail and specifically below based on the drawings. 1 to 7 show embodiments of this invention. 2 is a hot air fan, and this hot air fan 2 is installed in a warm air m4 partitioned by a vinyl sheet 3. The hot air fan 2 is provided with a supply tube 6 for carrying in fuel, and this supply tube 6
A fuel inlet 8 is formed at the bottom. This fuel input 111
B is provided with an inlet passage 12 surrounding the shut-off damper 1o that opens and closes the fuel inlet 8. The end of the inlet passage 12 is a fuel outlet 14, and the fuel outlet 14 is connected to the fuel tank 1.
6 is opened for communication. This combustion 34116 and gas generation section 1
8, and a rotary vane type level 1120 serving as a fuel repeller and a level detection section 22 are provided at the upper part of the fuel tank 16. ), the level detection unit 22 from the rotary vane type level meter 20 is rotatably inserted into the fuel tank 16 to measure the amount of fuel hanging down. Further, a rostrum 24 is provided at the lower part of the gas main forming part 18, and this rostrum 24 is formed with a large number of slits 26 serving as ventilation holes to ensure ventilation. Further, a primary air supply port 28 for promoting gas generation and a primary damper 30 for controlling the amount of primary air are provided on the side of the loss dollar 24.

A combustion chamber 32 is provided at the bottom of the loss dollar 24.

A secondary air supply port 34 for promoting combustion and a secondary damper 36 for supplying secondary air to the side are provided on the side of the combustion chamber 32. Further, a hot air passage 38 is provided in series on the side of the combustion chamber 32 opposite to the secondary air supply port 34 .

This hot air path 38 is extended and connected to the lower part of the heat exchange section 40. This heat exchange section 40 has a structure as shown in FIG.

A large number of heat exchange pipes 42 through which hot air passes are installed. -'') The lower end of Mariko's pipe 42 is open to communicate with the terminal end of the hot air path 38.
A hot air fan 46 for blowing air to the hot air generation section 44 between the cupcake pipe Tsukuda is installed on the side of the 0, and the heat exchange section 40
A hot air thermostat 48 is attached to control the hot air temperature. The hot air generation section 44 communicates with a hot air outlet 50 that discharges hot air. Also.

The upper part of the heat exchanger 40 is communicated with a chimney 52, an exhaust fan 54 is provided at the lower part of the chimney 52, and an air supply pipe 56 communicates between the exhaust fan 54 and the supply tube 6.

This introduces zero-conducting air from outside, and is used to prevent oxygen deficiency within the greenhouse. Further, a room temperature sensor 58 is provided indoors. Incidentally, reference numeral 60 indicates a solenoid device, and this solenoid device 60 opens and closes the closing gun 10. 62 is a micro switch, 64 is a solenoid, 66 is a locking portion, 68 is a weight 70 is a fuel hopper, 72 is a conveyor, and 74 is a control panel.

Since the present invention is constructed as described above, it operates as follows. When the switch on the control panel 74 is turned on, the fuel in the fuel bobber o is carried into the supply cylinder 6 by the conveyor 72. At this time, as shown in Figure 5.6,
The closing damper 1o is separated from the fuel inlet 8 and opened.

That is, the shut-off damper 1o is opened at this time, and the fuel is fed from the supply tube 6 through the fuel inlet 8 and into the fuel tank 16 through the fuel outlet 14 of the introduction path 12, and the fuel is fed into the fuel tank 1G. The gas is deposited in the gas generating section 18 that is connected to the air. At this time, the level detection section 22 slowly rotates until j=D, and when the fuel reaches the set level, the rotation of the level detection section 22 is stopped, and the rotation that is displaying this level detection section 22 is stopped. This stoppage is communicated to the vane level It20.

The rotary vane type level ft 20 signal is first communicated to the conveyor 72 after a delay of one fixed time (4 to 6 seconds in this example), and the conveyor 72 is stopped.

A few seconds after the conveyor 72 stops, the closing/closing damper 10 of the timer solenoid device 60 is closed.

That is, the fuel conveyed from the conveyor 72 to the fuel inlet 8 is reliably delivered to the fuel tank 1 without remaining in the supply tube 6.
Only a predetermined number of personnel will be placed in G. Only the minimum necessary amount of fuel is injected, and the closing damper lO reliably blocks the outside air from the combustion chamber 16.

Therefore, the inside of the fuel tank 16 and the gas generation chamber 18 are kept airtight, so that dangerous backfire due to the inflow of primary air does not occur, and no wasteful combustion occurs.

Even if inconvenient combustion occurs in the fuel tank 16, since only a predetermined amount of fuel has been put in, only that predetermined amount of fuel will be burned, and an excessive temperature rise may cause the greenhouse to collapse. 4, and can also contribute to energy saving. Furthermore, as will be described later, since the supply ports 28 and 34 for the primary air and the secondary air are provided through the Rossdol 24, it is possible to efficiently combust even the separated combustion fuel, and there is no shortage of heat capacity. Does not occur.

A primary damper 30 provided on the side of the Rosdol 24 is actuated by a predetermined control means, and primary air is supplied from the primary air supply port 28 toward the Rosdol 24 to generate combustible gas. . This combustible gas then passes through the slit 26 of the loss dollar 24 and flows down into the combustion chamber 32. Further, the secondary damper 36 is actuated by a predetermined control means, secondary air is sucked from the secondary rush supply port 34, and the secondary air and the combustible gas are mixed and completely combusted. .

As a result of this combustion, the temperature of the Rossdol 24 portion further increases, and combustible gas is generated, which flows down into the combustion chamber 32. This complete combustion gas.

The hot air passes through the hot air path 38, reaches the lower part of the heat exchanger 40, and branches into a large number of pipes 42. At this time, the hot air fan 46 attached to the heat exchange section 40 is activated.

The gust of air is sent to the hot air generation section 44 between the pipes 42, and the thermal energy of the pipe C is obtained to become hot air, which is discharged into the greenhouse 4 from the hot air outlet 50. At this time, the temperature of the hot air is detected by the leakage thermostat 48 attached to the heat exchange section 40, and the hot air fan 46 is controlled. Next, the exhaust gas that has passed through the pipe 42 flows into the chimney 52 from the upper part of the heat exchange section 40 . At this time, the exhaust fan 54 provided at the bottom of the chimney 52 is activated to draw in outside air from the air supply pipe 56 to effectively discharge the exhaust gas. And this exhaust 77n54 is,
The room temperature sensor 58 that is linked to the exhaust air 7 54 is controlled so that outside air is sucked in from the air supply pipe 56 of the exhaust air 7 54 to improve the flow of exhaust gas from the chimney 54. In addition, the primary and secondary dampers 3
The air intake rate from 0.30 to 0.30 is increased to improve the generation of combustible gas.

As is clear from the above description, according to the present invention, the following effects are obtained.

(1) By installing a shutoff damper in the fuel inlet, the fuel inlet can be reliably closed, eliminating the inconvenient flow of primary air and preventing backfire and explosions. It is safe to prevent occurrence.

(2) Since a fuel leveler is installed in the fuel tank, it is possible to supply the necessary amount of fuel for combustion as appropriate, making it possible to maintain a stable combustion rate and easily control it, ensure temperature control, and It can be used effectively and can contribute to energy saving.

(3), t. If the hot air fan is installed in the greenhouse, the thermal energy of the hot air fan can be used more effectively.

(4) Introduce all the air required for the combustion lungs from outside,
In addition to preventing oxygen deficiency indoors, all openings (that is, the fuel inlet 8, primary and secondary air ports 28, 34, air supply pipe 56, etc.) communicate with the outside. Therefore, even if unburned gas is generated due to various troubles, this dangerous gas will be discharged outside from all communication ports.
It is safe inside the house.

[Brief explanation of the drawing]

1 to 7 show embodiments of the present invention, the MgF'JI diagram is the entire hot air device □□□, and FIG. 2 is a plan view of FIG. 1. Fig. 3 is a schematic sectional view of the combustion device, Fig. 4 is a schematic sectional view of the heat exchange section (2), Fig. 5 is an enlarged sectional view taken along the line ■-■ in Fig. 3, and Fig. 6 is a plan view of the solenoid device. figure. FIG. 7 is a partially cutaway view of the solenoid device. In the figure, 2 is a warm air fan, 4//'i wet room, 10 is a closed dumpster, 16 is a fuel tank, 18 is a gas generation section, 20 is a rotary vane type level filter, 22 is a level detection section, and 24 is a Rosdol, 2611'i slit, 28 is a primary air supply port, 30 is a primary damper, 32 is a combustion chamber, and 34 is a secondary air supply port. 36 is a secondary damper, 40 is a heat exchange section, and 46 is a warm air fan. 48 is a warm air thermostat, 54 is an exhaust fan, 58 is a room temperature sensor, 60 is a solenoid device, and 74 is a control panel. Patent applicant Mitsui & Co., Ltd. agent Patent attorney Yoshimi Saigo

Claims (1)

[Claims] A fuel inlet is provided at the top of the fuel tank, a conveyor for carrying in fuel is connected to this fuel inlet, a closing damper is provided at the fuel inlet, and a loss dollar is provided at the bottom of the fuel tank.
A combustion chamber is provided below the rostrum, a primary air supply port is provided near the rostrum of the fuel tank, a secondary air supply port is provided in the combustion chamber, and the fuel tank is provided with fuel for detecting the amount of fuel. A combustion apparatus characterized in that a leveler is provided to operate the conveyor and the shut-off damper depending on the amount of fuel.