JP2933761B2 - Calorific value measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a calorific value measuring device capable of accurately and quickly measuring the calorific value of a measurement sample.

[0002]

2. Description of the Related Art To accurately measure the calorific value of various objects, a sample is sealed in a pressure vessel together with high-pressure oxygen gas as specified in JIS, and this pressure vessel is immersed in a double inner and outer water tank. In addition, a method is employed in which the sample is completely burned in the pressure vessel by energization, and the rise in water temperature at that time is measured by a thermometer. However, according to JIS regulations, the lid of the pressure-resistant container is attached to and detached from the container main body by a screw, so that it is difficult to automatically open and close the lid. For this reason,
Conventionally, it has been necessary to manually perform the measurement over a long time.

[0003] In order to solve such a drawback, an apparatus for automatically measuring the calorific value has been developed. At present, the only automatic measuring instrument on the market is LECO.
It has a structure in which the lid is brought into close contact with the main body via a heat insulating material so that the lid can be easily opened and closed, and the pressure-resistant container is immersed in a single water tank. For this reason, there is a drawback that the measurement error is increased due to the fact that heat leaks to the outside through the heat insulating material and the fact that a double inner / outer water tank specified by JIS is not used.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, enables automatic opening and closing of a lid, which has been an obstacle in achieving automation, and has performed measurement by a method specified in JIS. The present invention has been completed in order to provide a calorific value measuring device capable of automatically and accurately measuring a calorific value as in the case.

[0005]

According to the present invention, there is provided a calorific value measuring apparatus in which a sample is sealed in a pressure vessel with oxygen gas and burned in a water tank. And a bayonet-type lid having a projection on the upper surface, a lifting mechanism that raises and lowers the lid with a bendable string-like body above this lid, and engages with the projection on the upper surface when the lid is raised A lid support portion for supporting the lid and providing relative rotation between the lid and the pressure-resistant container body is provided. Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes a pressure vessel main body of a calorific value measuring device, and 2 denotes a lid thereof. The lid 2 is a bayonet-type lid as shown in plan views in FIGS. 2 and 3. In the embodiment, eight projections 3 are provided around the lid 2. On the other hand, the corresponding irregularities 4 are also formed on the inner surface of the upper end portion of the pressure-resistant container main body 1. By slightly rotating the lid 2 from the position of FIG. 2 to the position of FIG. It has a structure that can be securely fixed.

The bayonet-type lid 2 has a plurality of projections 5 on its upper surface, and the lower end of a bendable string-like body 6 such as a chain or a string is attached to these projections 5. The upper end of the string 6 is connected to a lifting mechanism 8 including a roller 7 provided above the lid 2 and a winding mechanism (not shown). I can do it.

Further, between the upper surface of the lid 2 and the roller 7,
A lid support 10 having a hole 9 capable of engaging with the plurality of protrusions 5 on the upper surface of the lid 2 is provided. The entire lid support 10 is rotated by a rotation mechanism (not shown). On the other hand, an openable / closable container main body support mechanism 11 is also provided outside the pressure-resistant container main body 1, and the lid support mechanism 10 and the container main body support mechanism 11 constitute a lid rotation mechanism. Then, the protrusion 5 of the lid 2 is engaged with the hole 9 of the lid support portion 10, and the pressure-resistant container main body 1 is chucked by the container body fixing mechanism 11 to rotate the lid support portion 10. Relative rotation can be performed between the container body 1 and the bayonet-type lid 2 can be opened and closed. At this time, it goes without saying that the lid supporting portion 10 may be fixed and the container body fixing mechanism 11 may be rotated.

Reference numeral 12 denotes an O-ring attached to the lower side surface of the lid 2 for ensuring a sealing property with the pressure-resistant container body 1. Reference numeral 13 denotes an electrode rod having a sample holding portion 14 at the lower end, and reference numeral 15 denotes an ignition electrode rod. The sample can be burned by passing an electric current between the electrodes.

[0010]

In order to measure the calorific value by the calorific value measuring apparatus of the present invention, a sample is first set on the holding portion 14 at the lower end of the electrode rod 13 of the lid 2 by a robot or the like. The pressure-resistant container main body 1 is raised in a state where the projections 5 are engaged with the holes 9 of the lid support portion 10, and the lid 2 is set inside the pressure-resistant container main body 1. Next, if the pressure-resistant container body 1 is chucked by the container body fixing mechanism 11 and the lid supporting portion 10 is rotated,
Is relatively rotated with respect to the pressure-resistant container main body 1, and the bayonet-type lid 2 is securely fixed to the pressure-resistant container main body 1. Therefore, the entire pressure vessel is hung by a string-shaped body 6 and immersed in a double water tank (not shown).
If electricity is ignited during the period, the sample burns completely and raises the water temperature of the inner water tank. At this time, the pressure vessel is
Since only communication with an external system is made possible, loss of heat can be minimized, and measurement can be performed with high accuracy.

After completion of the measurement, the entire body is lifted again by the string-shaped body 6, and the projection 5 of the lid 2 is engaged with the hole 9 of the lid support 10. In this state, the pressure-resistant container main body 1 is chucked by the container main body fixing mechanism 11 and the lid supporting portion 10 is rotated in the reverse direction.
Is relatively rotated with respect to the pressure-resistant container body 1, and the engagement between the bayonet-type lid 2 and the pressure-resistant container body 1 is released as shown in FIG. Thereafter, only the pressure-resistant container main body 1 is lowered to remove the sample residue and the like. Thus, according to the present invention, the lid 2 can be automatically opened and closed, and the calorific value can be automatically measured.

[0012]

As described above, the present invention employs a bayonet-type lid and employs a special lifting / lowering mechanism and a rotating mechanism so that the lid can be automatically opened and closed. The missing calorific value can be automatically measured. Moreover, according to the present invention, the calorific value can be measured in an inner / outer double water tank as specified in JIS.
Also, at that time, since the lid and the external system are only connected via the string, the loss of heat can be minimized, and measurement can be performed with high accuracy. As described above, according to the present invention, it is possible to automatically and accurately measure the calorific value as in the case of the measurement by the JIS method.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view of a bayonet-type lid in a non-engaged state.

FIG. 3 is a plan view of a bayonet-type lid in an engaged state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Lid 5 Projection 6 String body 8 Elevating mechanism 10 Lid support part

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Ishio Uemura 3-3-22 Nakanoshima, Kita-ku, Osaka-shi, Osaka Inside Kansai Electric Power Co., Inc. (72) Inventor Shoji Seiji 2-chome, Midori-ku, Nagoya-shi, Aichi Prefecture 167-1 (72) Inventor Norihiko Ishida 2-611 Asaide, Midori-ku, Nagoya City, Aichi Prefecture (56) References Japanese Utility Model 3-90042 (JP, U) Japanese Utility Model Utility Model Sho 49-25489 (JP, U.S.A.) U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G01K 17/00

Claims (1)

(57) [Claims] 1. A calorific value measuring apparatus of the type in which a sample is sealed in a pressure vessel with oxygen gas and burned in a water tank. Above the lid (2), an elevating mechanism (8) that raises and lowers the lid (2) with a bendable cord (6), and when the lid (2) is raised, Top projection
(5) to support the lid (2)
A calorific value measuring device, wherein a lid support portion (10) for giving relative rotation is provided between (1) and (2).