Liquid waste monitoring device

Patent metadata

Field	Value
Publication number	US-12306074-B2
Application number	US-201816969057-A
Country	US
Kind code	B2
Filing date	Aug 31, 2018
Priority date	Mar 14, 2018
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

Liquid waste is temporarily received by a liquid waste receiver that is provided on a discharge path for liquid waste generated in an analyzer to a liquid waste tank. An outflow liquid receiver is arranged adjacent to the liquid waste receiver, the liquid waste receiver and the outflow liquid receiver are partitioned by a partition having a certain height, and a liquid sensor is arranged in the outflow liquid receiver. In a case where an abnormality occurs in discharging of the liquid waste, the liquid waste accumulated in the liquid waste receiver flows over the partition to flow into the outflow liquid receiver, and is detected by the liquid sensor. Because the liquid waste flows into the outflow liquid receiver only in a case where an abnormality occurs in discharging of the liquid waste, an abnormality in discharging of the liquid waste can be detected by the liquid sensor.

First claim

The invention claimed is:

1. A liquid waste monitoring device comprising:
a liquid waste receiver that is provided on a discharge path for a liquid waste sent from at least one analyzer that constitutes an analysis system for carrying out an analysis using liquid, and is used to receive the liquid waste temporarily and discharge the liquid waste;
an outflow liquid receiver that is provided with a partition provided between the outflow liquid receiver and the liquid waste receiver, and is used to receive a liquid waste that has flowed over the partition to flow out from the liquid waste receiver; and
a liquid sensor that is provided in the outflow liquid receiver and is used to detect a liquid waste that has flowed out from the liquid waste receiver; and
an end of a flow path for a leak liquid in the analyzer arranged above the outflow liquid receiver,
wherein
the outflow liquid receiver is configured to receive the leak liquid in the analyzer, and the leak liquid that has flowed into the outflow receiver is detected by the liquid sensor.

2. The liquid waste monitoring device according to claim 1 , wherein
the liquid waste receiver and the outflow liquid receiver are sections partitioned by the partition in a common container, and the partition is provided to have a height lower than that of an outer wall of the container.

3. The liquid waste monitoring device according to claim 1 , wherein
the liquid waste receiver and the outflow liquid receiver are respectively constituted by individual containers,
the partition is constituted by a wall surface of a container of the liquid waste receiver and a wall surface of a container of the outflow liquid receiver, the wall surfaces being connected to each other; and
the partition is provided to have a height lower than that of another wall surface of the container of the liquid waste receiver and that of another wall surface of the container of the outflow liquid receiver.

4. The liquid waste monitoring device according to claim 1 , wherein
the common liquid waste receiver is configured to receive a plurality of liquid wastes.

5. The liquid waste monitoring device according to claim 1 , wherein
a plurality of the liquid waste receivers are provided,
the plurality of the liquid waste receivers that are different from one another are configured to receive a plurality of liquid wastes, and
the plurality of the liquid waste receivers communicate with liquid waste tanks that are different from one another.

6. The liquid waste monitoring device according to claim 5 , being configured such that a liquid waste that has overflowed from the outflow liquid receiver is discharged to a liquid waste tank communicating with another liquid waste receiver through the another liquid waste receiver when the liquid waste that has flowed out from any one of the liquid waste receivers overflows from the outflow liquid receiver.

7. The liquid waste monitoring device according to claim 5 , wherein
the partitions between each of the plurality of liquid waste receivers and the outflow liquid receiver respectively have different heights.

8. The liquid waste monitoring device according to claim 1 , being configured such that a liquid waste that has flowed into the outflow liquid receiver is discharged to a liquid waste tank.

9. The liquid waste monitoring device according to claim 1 , wherein
the analysis system is an analysis system for carrying out liquid chromatography, and
the liquid waste receiver and the outflow liquid receiver are provided in an autosampler that is one analyzer that constitutes the analysis system.

10. A liquid waste monitoring device comprising:
a liquid waste receiver that is provided on a discharge path for a liquid waste sent from at least one analyzer that constitutes an analysis system for carrying out an analysis using liquid, and is used to receive the liquid waste temporarily and discharge the liquid waste;
an outflow liquid receiver that is provided with a partition provided between the outflow liquid receiver and the liquid waste receiver, and is used to receive a liquid waste that has flowed over the partition to flow out from the liquid waste receiver; and
a liquid sensor that is provided in the outflow liquid receiver and is used to detect a liquid waste that has flowed out from the liquid waste receiver,
wherein
the outflow liquid receiver is configured to receive a leak liquid in the analyzer prior to any overflow of the leak liquid over the partition into the liquid waste receiver, and the leak liquid is detected by the liquid sensor or a separately provided second liquid sensor prior to the any overflow of the leak liquid over the partition.

Assignees

• Shimadzu Corp

Inventors

• ANDO Shotaro

Classifications

• G01N2030/027

  Liquid chromatography · CPC title

• G01N30/16

  Injection (G01N30/24 takes precedence) · CPC title

• G01F23/241

  for discrete levels · CPC title

• G01F23/261

  for discrete levels · CPC title

• G01F23/20

  by measurement of weight, e.g. to determine the level of stored liquefied gas · CPC title