JPH0321823A - Measuring instrument for fuel consumption - Google Patents

Abstract

PURPOSE:To enable the measuring instrument to be carried and to facilitate measuring operation and its additional operation for fuel consumption by storing a tank unit and an electric unit in a storage box. CONSTITUTION:The measuring instrument is equipped with the tank unit 10 and electric unit 11, which are stored in the storage box 12 in a rectangular prism shape. The unit 10 is equipped with a tank 19 for storing fuel, a solenoid valve 20, a filter 21, a liquid amount detector 22, a liquid level detector 23, a holder 24, a flexible hose 25, etc. Further, the unit 11 is equipped with an inlet 38, an electric switch 39, a pilot lamp 40, an alarm lamp 41, a fuse case 42, and receptacle 43, which are fixed on the upper surface wall of an electric box 44. Thus, the units 10 and 11 are put integrally in the storage box 12, so the instrument can be carried, the tip of the hose is only connected to fuel consuming equipment to measure its fuel consumption, and the fuel measuring operation and its additional operation are facilitated.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fuel consumption measuring device, and is effective when used to measure the fuel consumption of combustion devices such as cL oil stoves and boilers. Look at things. [Prior Art] Normally, the fuel consumption of combustion equipment such as kerosene stoves and boilers is determined by design specifications, and adjustments and inspections are made to meet the specifications at the final stage of the manufacturing process. However, if an abnormality occurs in the combustion condition of the combustion device after it is shipped to the user, an adjuster at a sales company or the like cannot adjust the fuel consumption while checking the flame condition of the combustion device. However, this adjustment method depends on the adjuster's taste, and there is a risk that the performance of the combustion equipment may vary.
Moreover, the work is time-consuming. Therefore, it has been proposed to insert a flow meter (flow rate detection means) between the fuel tank and the combustion device to measure fuel consumption. [Problem to be solved by the invention] However, when inserting a flow rate needle between the fuel tank and the combustion device, it is necessary to remove the hose connecting the fuel tank and the combustion device, and it is not possible to remove the hose directly. Air may enter the pipes, and if the flowmeter is installed in this condition, air will accumulate in the metering chamber of the flowmeter, and this air will reduce the accuracy of flow rate detection. In other words, when detecting the flow rate of fuel using a rotary flowmeter, if air with a lower specific gravity than the fuel is mixed into the fuel, buoyancy will occur in the air against the rotational direction of the rotor, and this buoyancy will cause rotational loss. As a result, the accuracy will decrease. SUMMARY OF THE INVENTION An object of the present invention is to provide a fuel consumption measuring device that can extremely easily measure fuel consumption for adjusting a combustion device and has high measurement accuracy. [Means for Solving the Problems] The fuel consumption measuring device according to the present invention includes a tank for storing fuel, and a flow rate detection device connected to the tank by a conduit, introducing fuel from the tank and detecting the flow rate of the fuel. means and
A tank unit having a hose for guiding fuel from the flow rate detection means to a fuel consuming device, a fuel consumption amount calculation means for calculating a fuel consumption amount from a detection output of the flow rate detection means, and this fuel consumption amount calculation means. and an electric unit having a display means for displaying the calculation result, and the tank unit and the electric unit are housed in a storage box. [Function] According to the above-described means, the tank unit and the electric unit are housed integrally in the storage box, making it portable and reducing fuel consumption by simply connecting the end of the hose to the fuel-consuming device. This makes fuel measurement work and related work easier. Moreover, since the tank, the flow rate detection means, and the hose are fluidly connected and are fluidly integrated, fuel is stored in the flow rate detection means and air is prevented from entering. [Example] Fig. 1 is an exploded perspective view showing a fuel consumption measuring device which is an embodiment of the present invention, Fig. 2 is its circuit diagram, Fig. 3 is a perspective view for explaining the usage state, Fig. Figure 4 is a plan sectional view showing one embodiment of the flow rate detection means. In this embodiment, the fuel consumption measuring device according to the present invention includes a tank unit 10 and an electric unit 11, and each unit is housed in a rectangular parallelepiped storage box 12. A cushioning material l3 made of sponge or the like is placed on the entire wall of the storage box l2, and a box l6 with a bottom is stored inside this storage box l2.
The interior of the storage box 12 is divided into left and right storage chambers l4 and 15 by one side wall l7 of the box l6. A tank unit 10 is stored in a storage chamber l4 formed on the inside of the box l6, and an electric unit 11 is stored in a storage chamber 15 formed on the outside of the box 16. By closing the lid 18, each unit can be carried. The tank unit IO includes a tank 19 for storing fuel (kerosene, light oil, etc.), an 'IM1 valve 20, an illumination valve 821, a flow rate detector (flow rate needle) 22, a liquid level detector 23, a retainer 24, a flexible hose 25, etc. It is equipped with The tank 19 is shaped like a substantially rectangular parallelepiped box, and has an injection port 26 on the top surface for injecting fuel, and an inlet 26 for adjusting the internal pressure of the tank 19 and for fixing a socket 27 connected to the tip of the flexible hose 25. A plug 28 is fixed for use. This plug 2B
A socket 27 is detachably attached to the socket 27 when the fuel consumption measuring device is not in use.
7 is attached to the plug 28, the flexible hose 2
5 is now retained. Also, when the socket 27 is removed from the plug 2B, the plug 28 is connected to the tank l9.
The inside of the fuel tank 19 is communicated with the atmosphere through a plug 28 to prevent a decrease in pressure from occurring in the tank 19 as the fuel in the tank 19 decreases. In other words, the plug 28 functions as an air press. On the other hand, the socket 27 attached to the tip of the flexible hose 25 is configured as a quick fitting (self-sealing fitting) with a valve, and when attached to the plug 28, the internal valve is closed and oil The valve is designed to open only when connected to a fuel-consuming device to be measured, such as a stove. Further, a conduit 29 is provided at the upper side of the tank 19. The conduit 29 is bent in the middle toward the bottom of the tank 19, and its tip is connected to the flow rate detector 22. A solenoid valve 20 and a filter 2l are interposed in the middle of the conduit 29. This filter 2l is fixed to the side surface of the tank 19 while being held by the holder H24A. The flow rate detector 22 is a retainer 24B.
A flexible hose 25 is connected to the outlet side of the flow rate detector 22. As shown in FIG. 4, the flow rate detector 22 includes a gear housing 30, in which a working chamber 3l is formed, an artificial passage 32 and an outlet passage 33.
and are arranged at 180 degrees from each other to form a working chamber 3l.
It is designed to communicate with both small diameter chambers. A pair of support shafts 34 are disposed in the working chamber 31 so as to be parallel to each other on a line perpendicular to the center lines of both passages 32 and 33, and project perpendicularly from the a-plane of the working chamber 3l. The housing price is set at 30. Both support shafts 34
A pair of non-circular gears 35 are rotatably fitted and supported by the respective gears, and the gears 35 are meshed with each other. The non-circular gear 35 consists of a boss part (not shown) and a gear part 36. On the upper surface of the non-circular gear 35, a plurality of reflections [37] as detected objects are formed around the circumference on a circle centered on the support shaft 34. They are arranged and fixed at approximately equal intervals in the direction. When fuel is supplied from the inlet passage 32 to the outlet passage 33 via the working chamber 3l, the flow of fuel causes the non-circular gear 35 to rotate in the direction indicated by the chain arrow.
At this time, a reflective optical sensor (not shown) detects the light reflected by the reflecting plate 37 passing therethrough, and the rotation of the non-circular gear 35 is measured based on the detection output of this reflective optical sensor. This allows the flow rate to be measured practically.
Further, the liquid level detector 23 is arranged at the bottom of the tank 19, and its contacts are closed when the fuel in the tank 19 falls below a set level. By the operation of this liquid level detector 23, the tMI valve 20 is automatically closed, and a warning lamp 4l, which will be described later.
now generates a warning. On the other hand, the electrical unit 11 includes an inlet 38, an electrical switch 39, a pilot lamp 40, a warning lamp 41, a fuse case 42, and a receptacle 43, which are fixed to the upper wall of an electrical box 44. Inside the electric box 44, there is a calculator 45 for calculating fuel consumption based on the detection output of the flow rate detector 22;
A display 46 for displaying the calculation results is housed. A power cord 47 is attached to the inlet 38, and an electric plug 48 is attached to the receptacle 43. ! An electric plug 50 is connected to the electric plug 48 via a cable 49, and this electric plug 50! It is designed to be connected to a receptacle 52 fixed to 51. This receptacle 52 is connected to the flow rate detector 22 via a cable 53 and to the Mitt valve 20 via a cable 54. In other words, tank unit}1
0 and the electric unit} 11 are stored in the storage box l2, the lid 51 is placed on the box body 16 that houses the tank unit 10, and the receptacles 43 and 52 are connected to the cable 49 while enclosing the tank unit} 10. By connecting each unit via the storage box 12, it becomes possible to calculate and display the fuel consumption amount with each unit stored in the storage box 12. Here, the tank unit 10 is stored in a box 16. At this time, the direction of the tank unit 10 is such that the flow rate detector 22 attached to the tank 19 is
It is stored in the box l6 in a state facing 1411, that is, in a state rotated 90 degrees clockwise in FIG. Next, the usage and operation of the fuel consumption measuring device according to the above structure will be explained. As shown in FIG. 3, when the fuel consumption of the kerosene heater 56 is measured, the hose 57 connected to the kerosene heater 56 is removed from the socket 59 of the separate tank 58. Then, the socket 27 at the tip of the flexible hose 25 is connected to the plug 60 at the tip of the hose 57. On the other hand, when the t-source cord 47 is connected to the power source, t-power is applied to each part.
source is supplied. As a result, when the electric unit 11 is activated and the kerosene stove 56 is ignited, the fuel in the tank l9 flows through the conduit 29, the flow rate detector 22, the flexible hose 25, and the hose 57 depending on the combustion state. The oil is supplied to the kerosene stove 56. The fuel detector 22 detects the flow rate of fuel consumed as the kerosene stove 56 burns, and the display 46 displays the amount of fuel consumed based on the detected output. This allows the adjuster to accurately adjust the fuel consumption amount of the kerosene stove 56 while viewing the fuel consumption amount displayed on the display 46. When the fuel consumption of this kerosene stove 56 is calculated, since the fuel in the tank 19 is always stored in the flow rate detector 22 and the flexible hose 25, air will not get mixed into the flow rate detection system. As a result, the fuel consumption of the kerosene stove 56 can be calculated accurately. In the present embodiment, the socket 27 has a self-sealing joint structure so that a leakage path is opened when the socket 27 is connected to the plug 60, thereby preventing fuel from spilling. Further, according to this embodiment, since the electrical unit and the tank unit are separated by the wall of the box, contact between fuel and electricity is prevented, and safety can be ensured. Furthermore, since the tank unit is housed in a box and there is a space between the electrical unit and the tank where a flow rate detector is installed, there is a possibility that fuel may spill when injecting fuel into the tank. However, the fuel does not accumulate inside the box and flow to the electrical unit, and all you have to do is take the box out of the storage box and clean the fuel, making equipment maintenance extremely easy. Furthermore, when the fuel in the tank 19 becomes low, the electromagnetic valve 20 is automatically closed by the output of the liquid level detector 23, thereby preventing air from entering the pipe. At this time, the warning lamp 4l is lit based on the output of the liquid level detector 23, so that the adjuster can be immediately warned to replenish the fuel. Note that the present invention is not limited to the above embodiments,
It goes without saying that various changes can be made without departing from the gist. For example, as shown in FIG. 5, a pump 62 is connected to the secondary side of the flow rate detector 22 via a directional control valve 6l to ensure that air enters the flow rate detector 22 at the beginning of measurement. You may also take measures to prevent this. That is, in FIG. 5, a 3-port, 2-position, ifm switching type directional control valve 6l is installed on the secondary side of the flow rate detector 22.
A flexible hose 25 is connected to one outlet port of the control valve 61, and a bomb 62 is connected to the other outlet port of the control valve 61. bomb 62
The discharge side of the pump 62 is opened into the tank l9.
is designed to return fuel from the flow-out device 22 to the tank 19. This control valve 6l is configured to be normally closed, and a timer switch 63 is electrically connected to the solenoid of this control valve 61 and the drive motor M of the pump 62. The timer switch 63 is always turned off, and the power switch 39
When the pump 62 is turned on, the drive motor M of the bomb 62 and the solenoid are energized, the bomb 62 is turned on, and the control valve 6l is switched. drive motor M1
and the control valve 6l is closed. Therefore, when the ta switch 39 is turned on, the fuel in the tank 19 is supplied to the flow rate detector 22 by the bomb 62 via the control valve 61. Even if some air remains, the air will be completely exhausted after a certain period of time. Then, when the air is completely exhausted, the control valve 6l is switched to the flexible hose 25 side by the timer switch 63, and the fuel in the tank l9 flows to the object to be measured! Since the flow rate is supplied through the detector 22, the flow rate detector 22 performs accurate flow rate measurement. In addition, the tank unit 10 is not limited to being stored in the box body 16, but the inside of the storage box 12 can be partitioned into two compartments by a partition wall, and the tank unit is stored in one compartment and the electricity is connected to the other compartment. You may also arrange to store the unit. In the above explanation, the present invention is applied to the measurement of the fuel consumption of a combustion device, but the present invention is not limited thereto, and can also be applied to the measurement of the fuel consumption of an internal combustion engine. can. [Effects of the Invention] As explained above, according to the present invention, since the tank unit and the electric unit are housed in the storage box and integrated, it becomes possible to carry it as a fuel consumption measuring device. Therefore, a distributor or the like can measure fuel consumption by simply carrying this fuel consumption measuring device and connecting the hose of this fuel consumption measuring device to a fuel consumption device such as a stove. This can make that work extremely easy. Furthermore, since the tank, lump amount detection means, and hose are integrated as a tank unit, the fuel is stored within the flow rate detection means, so it is possible to prevent air from entering the flow rate detection means. As a result, fuel consumption can be measured with high accuracy.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing a fuel consumption measuring device which is an embodiment of the present invention, Fig. 2 is its circuit diagram, Fig. 3 is a perspective view for explaining the usage state, and Fig. 4 is a flow rate. FIG. 3 is a plan cross-sectional view showing one embodiment of the detection means. FIG. 5 is a circuit diagram showing another embodiment of the present invention. IO...tank unit, 11...electrical unit,
12... Storage box, 13... Cushioning material, 14, 15...
・Storage room, l6...box, l7...side wall, l8・
... Lid, l9... Tank, 20... Solenoid valve, 2l.
... Filter, 22 ... Lump amount detector, 23 ... Liquid level detector, 24 ... Holder, 25 ... Flexible hose, 26
...Inlet, 27...Socket, 28...Plug, 29...Conduit, 30...Gear housing, 31...
... Working chamber, 32... Artificial passage, 33... Exit passage, 34... Support shaft, 35... Non-circular gear, 36...
Gear part, 37...Reflector, 38...In left, 3
9... Electric switch, 40... Pilot lamp,
41...Warning lamp, 42...Fuse case, 4
3, 52... Receive Tataru, 44... Electrical box, 45
...Arithmetic unit, 46...Display unit, 47...Power cord, 48, 50...Electric plug, 49, 53, 54.
... Cable, 51 ... Lid, 56 ... Oil stove, 57 ... Hose, 58 ... Separate tank, 59 ...
・Socket, 60...Plug, 61...Direction control valve, 62...Pump, 63...Timer switch. Figure 2 Figure 4 ◆ Figure 5

Claims (1)

[Claims] 1. A tank for storing fuel, a flow rate detection means connected to this tank by a conduit, and for introducing fuel from the tank and detecting the flow rate of the fuel, a tank unit having a hose for leading to a consuming device; a fuel consumption calculation means for calculating the fuel consumption from the detection output of the flow rate detection means; and a display means for displaying the calculation result of the fuel consumption calculation means. A fuel consumption measuring device comprising: an electric unit having a fuel consumption amount measuring device, wherein the tank unit and the electric unit are housed in a storage box.