JPH03213151A - Draft - Google Patents

Abstract

PURPOSE:To make work efficient by taking out a sample to be analyzed or an acid/ alkali from a storage chamber and performing the measurement of an object to be treated by a meter, the discharge of a waste solution and the washing/drying of an instrument at definite positions by the apparatus and meter respectively arranged to an analyzing draft. CONSTITUTION:A heating/cooling local hood 5 provided with an exhaust port 7 having a sample storage chamber 4, a heater 8 for heating and decomposition and a cooling apparatus g arranged thereto and a treatment hood 6 provided with a ventilation port 10 having a water supply apparatus 11, a waste solution discharge apparatus 12 and an instrument washing apparatus 13 arranged thereto are provided in a housing with an illuminator having the perfectly and hermetically closable transparent opening and closing door 2 of the upper half part provided to the front surface thereof. A drying apparatus 15, the waste solution tank 16 connected to the waste solution discharge apparatus 12, a meter space 17, a machinery receiving shelf 18, an instrumentation space 19, a receiving chamber 20 and a power supply apparatus 21 are provided in the housing 14 of the lower half part. As a result, the wastefulness of the carrying of a sample, an acid and alkali and the carrying of an instrument is eliminated and a series of subsidary works accompanied by analytical work are made efficient.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a draft used for thermal decomposition of a sample, cooling, measurement, dilution of acid/alkali, generation of atmospheric gas, etc.

(Prior Art) Conventionally, in order to thermally decompose and cool an analysis sample, dilute an acid/alkali, etc., heating, cooling, dilution, etc. are performed using a heating/cooling draft.

(Problems to be Solved by the Invention) By the way, heating/cooling drafts are convenient because heating, cooling, and dilution can be performed in a fixed position, but they are also useful for taking out analytical samples and acids/alkali from storage, transporting them, etc. Incidental work such as measuring the analytical sample, transporting the waste liquid, and cleaning and drying the instruments is involved, so while performing these operations, the analytical sample must be thermally decomposed and the acid/alkali diluted one after another using a heating/cooling fume hood. Because it has to be done, the work is still complicated and inefficient.

Therefore, the present invention aims at thermal decomposition, cooling, and measurement of analytical samples.
The present invention aims to provide a draft that not only dilutes alkali and generates atmospheric gas, but also allows the above-mentioned associated operations to be performed efficiently in a fixed position.

(Means for Solving the Problems) To solve the above problems, the draft of the present invention is equipped with a transparent opening/closing door on the front side that is completely sealed in the upper half and can automatically adjust the exhaust volume by opening and closing. A process with a standard sample storage, a local hood for heating and cooling with an exhaust port equipped with a heating device for pyrolysis and a cooling device, a ventilation port with a water supply device, a waste liquid discharge device, and a device cleaning device in an illuminated housing. A hood is provided, and a drying device, a waste liquid tank connected to the waste liquid discharge device, an instrument space, an equipment storage shelf, an instrumentation space, a storage chamber, a power supply device, etc. are provided in the lower half of the housing.

(Function) According to the draft configured as described above, when carrying out thermal decomposition of analysis samples and dilution of acids and alkalis, the accompanying work is to take out and process the analysis samples and acids and alkalis from the storage. Each device installed in the analytical fume hood measures things with a meter, drains waste liquid, washes and dries instruments, etc.
Since it can be carried out in a fixed position using instruments, there is no need to carry analysis samples, acids and alkalis, or equipment, making the work more efficient.

(Example) To explain one embodiment of the analytical draft of the present invention with a diagram, l is a transparent PVC housing in the upper half, which can be opened and closed in a double-sided manner on the front and can be stored by sliding on the outside surface. A transparent opening/closing door 2 made of glass is provided, and the opening/closing door 2 can be completely sealed when closed. Inside the upper half of the housing l, there are two fluorescent lights 3 on the ceiling as lighting.
A turntable-type dispenser storage is provided as a sample storage 4 in the middle and high part, a local heating/cooling hood 5 is partitioned on the lower side (right side), and processing is provided on the lower center and the other side (left side). A hood 6 is divided. The local heating/cooling hood 5 is provided with an exhaust lower connected to a duct (not shown), and has a heating device 8 for thermal decomposition inside.
and a cooling device 9. The processing hood 6 is provided with a ventilation port 10 connected to a duct (not shown), and a water supply device 11, a waste liquid discharge device 12, and an instrument cleaning device 13 are provided inside. Inside the lower half housing 14, a drying device 15, a waste liquid tank 16 connected to the waste liquid discharge device 12, an instrument space 17, an equipment storage shelf 18, an instrument space 19, a storage chamber 20, a power supply device 21, etc. are arranged. ing.

According to the analytical draft of the embodiment configured in this way, when the opening/closing door 2 is opened and the analytical sample is thermally decomposed by the thermal decomposition heating device 8 in the local heating/cooling hood 5, the required analysis can be carried out. Since the sample can be immediately taken out from the standard sample storage 4 and put into the thermal decomposition heating device 8, there is no need to go to a hangar in another location, take it out, and transport it, as in the conventional case. In addition, the analytical sample after thermal decomposition can be immediately cooled down in the cooling device 9 in the local heating/cooling hood 5, and the decomposed sample after cooling can be measured on the spot using the instrument in the instrument space 17 without having to carry it around. Further, the waste liquid is discharged to a waste liquid discharge device 12 in the processing hood 6 and stored in a waste liquid tank 16 connected thereto. The instruments are then cleaned in the instrument washing device 13 inside the processing hood 6.
Drying device 1 arranged inside the housing 14 in the lower half after cleaning
Dry at step 5.

When an analytical sample is thermally decomposed in this way, a fume hood is installed to perform incidental operations such as removing the analytical sample from the storage, measuring the decomposed sample, discharging waste liquid, and washing and drying instruments. Since it can be carried out in a fixed position using each device, instrument, etc., there is no need to carry around analysis samples or instruments (and a series of incidental operations associated with sample thermal decomposition, cooling, and measurement become more efficient).

In the above embodiment, thermal decomposition of a sample was explained, but it is also used for diluting acids and alkalis and generating atmospheric gas.

(Effects of the Invention) As can be seen from the above explanation, according to the draft of the present invention, the incidental work involved in thermal decomposition of a sample, cooling, measurement, dilution of acid/alkali, generation of atmospheric gas, etc. Each device installed in the fume hood performs tasks such as removing samples, acids and alkalis from storage, measuring decomposed samples, diluted liquids, atmospheric gases, etc., discharging waste liquids, cleaning and drying instruments, etc.
Since it can be carried out in a fixed position using a meter or the like, there is no waste in carrying samples, acids/alkali, instruments, etc., and a series of incidental operations accompanying the above operations become more efficient.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the draft of the present invention, FIG. 2 is a plan view, and FIG. 3 is a side sectional view.

Claims (1)

[Claims] 1) A local hood for heating and cooling that has a specimen storage, a heating device for thermal decomposition, and an exhaust port with a cooling device arranged in an illuminated housing with a completely sealable transparent opening/closing door in the upper half, A processing hood with a ventilation port equipped with a water supply device, a waste liquid discharge device, and an instrument cleaning device is provided, and a drying device, a waste liquid tank connected to the waste liquid discharge device, an instrument space, an equipment storage shelf, and an instrumentation are installed in the lower half of the housing. A draft consisting of a space, a storage room, a power supply device, etc.