Gas Collection Device

Patent metadata

Field	Value
Publication number	US-2023168159-A1
Application number	US-202117922462-A
Country	US
Kind code	A1
Filing date	Sep 1, 2021
Priority date	Nov 10, 2020
Publication date	Jun 1, 2023
Grant date	—

Abstract

The present invention relates to a gas collection device, and provides a gas collection device for collecting gas that is generated as microorganisms are cultured in a super absorbent polymer product.

First claim

1 . A gas collecting apparatus comprising:
a constant temperature chamber having an inside, the apparatus being configured to maintain the inside at a constant temperature; a culture flask unit provided inside the constant temperature chamber, the apparatus being configured to culture bacteria in the culture flask unit; a first collecting unit provided outside the constant temperature chamber and configured to receive a first portion of a gas from inside the culture flask unit; a second collecting unit provided outside the constant temperature chamber and configured to receive a second portion of the gas from inside the culture flask unit; a first mass flow control unit provided outside the constant temperature chamber and configured to control a flow rate of the first portion of the gas into the first collecting unit; a second mass flow control unit provided outside the constant temperature chamber and configured to control a flow rate of the second portion of the gas into the second collecting unit; a discharge flow path having a first end thereof connected to a discharge port provided in the culture flask unit, the discharge flow path being configured to serve as a passage through which the gas inside the culture flask unit is discharged; a first flow path having a first end thereof connected to a second end of the discharge flow path and a second end thereof connected to the first collecting unit; and a second flow path having a first end thereof connected to the second end of the discharge flow path together with the first flow path and a second end thereof connected to the second collecting unit.

2 . The gas collecting apparatus of claim 1 , wherein the first collecting unit is an adsorbent tube, and the second collecting unit is an impinger or a gas-detecting tube.

3 . The gas collecting apparatus of claim 2 , wherein the first mass flow control unit is provided on the first flow path, and the second mass flow control unit is provided on the second flow path.

4 . The gas collecting apparatus of claim 3 , further comprising a first valve provided at a front end of the first mass flow control unit on the first flow path, and a second valve provided at a front end of the second mass flow control unit on the second flow path.

5 . The gas collecting apparatus of claim 3 , wherein the discharge flow path comprises:
a first discharge flow path passing through a wall of the constant temperature chamber; a second discharge flow path connecting the discharge port of the culture flask unit to the first discharge flow path, the second discharge flow path being inside the constant temperature chamber; and a third discharge flow path connecting the first flow path and the second flow path to the first discharge flow path, the third discharge flow path being outside the constant temperature chamber.

6 . The gas collecting apparatus of claim 5 , wherein the third discharge flow path is provided with a venting unit configured to receive a discharge therethrough of a gas inside the third discharge flow path.

7 . The gas collecting apparatus of claim 3 , further comprising:
an injection flow path connected to an injection port provided in the culture flask unit, the injection flow path being configured to receive a flow therethrough of air injected into the culture flask unit; and a third mass flow control unit provided in the injection flow path and configured to control a flow rate of the air injected into the culture flask unit.

8 . The gas collecting apparatus of claim 7 , wherein the injection flow path comprises:
a first injection flow path passing through a wall of the constant temperature chamber; a second injection flow path connecting the injection port of the culture flask unit to the first injection flow path, the second injection flow path being inside the constant temperature chamber; and a third injection flow path connecting the third mass flow control unit to the first injection flow path, the third injection flow path being from outside the constant temperature chamber.

9 . The gas collecting apparatus of claim 2 , wherein the first mass flow control unit is provided at a rear end of the first collecting unit, and the second mass flow control unit is provided at a rear end of the second collecting unit, the apparatus further comprising a vacuum pump configured to suck the gas in the culture flask unit into the first collecting unit and the second collecting unit, the vacuum pump being is connected to the rear end of the first mass flow control unit and the rear end of the second mass flow control unit.

10 . The gas collecting apparatus of claim 9 , wherein the vacuum pump is a diaphragm pump.

11 . The gas collecting apparatus of claim 9 , further comprising:
an injection flow path connected to an injection port provided in the culture flask unit, the injection flow path being configured to receive a flow therethrough of air injected into the culture flask unit; and a check valve provided in the injection flow path, the check valve being configured to prevent the gas inside the culture flask unit from being discharged through the injection port of the culture flask unit.

Assignees

• Lg Chemical Ltd

Inventors

• Won Jung Hye
• Ko Eunbyeol
• Choi Nak Hee
• Jung Min Hwan
• Lee Ji Seok
• Yun Haesung

Classifications

• Y02A50/20

  Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters · CPC title

• G01N2001/242

  Injectors or ejectors · CPC title

• C12M21/04

  for producing gas, e.g. biogas (digesters for manure with production of biogas A01C3/028, biological treatment of water, waste water or sewage C02F3/00, C02F11/02, preparation of natural gas or syngas C10L3/06, C10L3/10) · CPC title

• G01N1/2226 Primary

  Sampling from a closed space, e.g. food package, head space · CPC title

• G01N2001/247

  Syringes · CPC title