Pipe network peripheral biological membrane sampling device and sampling method

A sampling device and biofilm technology, applied in the direction of sampling devices, sampling, measuring devices, etc., to achieve the effect of easy disassembly and replacement, simple exterior and flexible operation

Inactive Publication Date: 2020-11-20
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a biofilm sampling device and sampling method at the end of the pipe network. The sampling device is aimed at the sampling characteristics of the biofilm at the end of the pipe network. The sampling problem of pipe wall biofilm has broad application prospects

Method used

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  • Pipe network peripheral biological membrane sampling device and sampling method
  • Pipe network peripheral biological membrane sampling device and sampling method

Examples

Experimental program
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Effect test

Embodiment 1

[0032] like figure 1 A biofilm sampling device at the end of a pipe network is shown, including: 6 sampling pipes 2, respectively marked as P1-P6; 5 first joints 3, all of which are elbow joints, respectively marked as S1-S5; A second connector 4, which is a direct connector, marked as S6; The shell 1 is easy to open and has a certain protective effect.

[0033] The sampling pipe 2 is arranged in a continuous curved structure, P1 is directly connected to the water inlet at the end of the pipe network, and P6 is connected to the metal hose at the water outlet through S6.

[0034] The material of the sampling pipe 2 is the same as that of the water supply pipe at the end of the pipe network. It is a metal hose, and the length of each pipe section is 10mm. Among them, P1 and P6 should be slightly longer than other pipe sections so as to connect with the water inlet and outlet. The four-point pipe standard part is adopted, and the pipe diameter is 15mm.

[0035] The elbow joint...

Embodiment 2

[0039] A biofilm sampling device at the end of a pipe network, comprising a housing 1 and a plurality of sampling tubes 2 sequentially arranged in series in the housing 1, a first joint 3 is provided between two adjacent sampling tubes 2, and the sampling tube 2 is connected to the first The joints 3 are detachably connected.

[0040] Wherein, one end of the first sampling tube 2 is connected with the corresponding first connector 3, and the other end extends out of the shell 1; one end of the last sampling tube 2 is connected with the corresponding first connector 3, and the other end is provided with a second A connector 4 , one end of the second connector 4 protrudes from the outside of the housing 1 . Both the sampling tube 2 and the first joint 3 and between the sampling tube 2 and the second joint 4 are threaded. The first joint 3 is an elbow joint, and the second joint 4 is a straight joint.

[0041]The number of sampling tubes 2 is 2-15 (eg 3, 5, 10, 15). A pluralit...

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Abstract

The invention relates to a pipe network peripheral biological membrane sampling device and a sampling method. The sampling device comprises a shell and a plurality of sampling pipes which are sequentially arranged in the shell in series. A first joint is arranged between every two adjacent sampling pipes, and the sampling pipes are detachably connected with the first joints. During sampling, the sampling device is installed at a pipe network peripheral sampling point, the first sampling pipe is taken down after one year, a pipe wall biological membrane with the growth time of one year can be obtained, and then the original first sampling pipe is replaced with a new sampling pipe; in the same way, after n years, the nth sampling pipe is taken down, and the pipe wall biological membrane withthe growth duration of n years can be obtained. Compared with the prior art, the sampling device has the advantages of being small in size, convenient to install and easy to operate, a plurality of sampling pipes can be arranged at any peripheral connector at the same time to sample pipe wall biological membranes in the same environment for 1-n years, and the sampling process can be simplified.

Description

technical field [0001] The invention belongs to the technical field of biological safety of water supply pipe networks, and relates to a biofilm sampling device and a sampling method at the end of a pipe network. Background technique [0002] Biofilms are ubiquitous on the wall of the water supply pipe network from the water plant to the user, which is one of the important factors affecting the safety of water supply and leading to the decline of water quality. Pipe wall biofilm is a complex formed by the mutual adhesion of microorganisms and their extracellular polymers (EPS) with organic and inorganic substances in water, which may lead to increased turbidity of water supply, growth of pathogenic bacteria, and increased pipeline corrosion Happening. Water quality safety problems caused by biofilms on the walls of water supply pipe networks have attracted widespread attention from various water supply industries and related scientific researchers. However, there is current...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01N1/10
CPCG01N1/10G01N2001/1031
Inventor李伟英田妤张琛陈继平周宇王鑫民
OwnerTONGJI UNIV