CN109197801A

CN109197801A - It is a kind of suitable for mountain stream, the acquisition device of the planktonic organism in streams

Info

Publication number: CN109197801A
Application number: CN201811276676.8A
Authority: CN
Inventors: 彭建华; 郑志伟; 史方; 邹曦; 胡莲
Original assignee: Institute Of Water Engineering Ecology Chinese Academy Of Sciences
Current assignee: Institute Of Water Engineering Ecology Chinese Academy Of Sciences
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2019-01-15

Abstract

The invention discloses a plankton collection device suitable for mountain rivers and streams, comprising a bracket, a sedimentation bucket and a filter head. The lower part of the sidewall of the sedimentation bucket is provided with a water outlet, and the water outlet is connected with a first drainage pipe, which is connected to the drainage pipe. There is a first water valve on it, and the filter head is an interface, a filter area, a collection area and a second drain pipe from one end to the other end. The filter area includes a casing and a filter screen. The filter screen is lined on the casing. The water outlet window, the interface, the filter area, the collection area and the second drain pipe are connected in sequence, the second drain pipe is provided with a second water valve, the sedimentation bucket is installed on the bracket, the filter head is vertically arranged, and the interface is connected to the outlet of the first drain pipe Connect in a detachable way. The device is simple in structure, easy to use, and has high collection efficiency, and can remove interfering impurities such as sediment and water wool.

Description

It is a kind of suitable for mountain stream, the acquisition device of the planktonic organism in streams

Technical field

The invention belongs to Ecology monitoring and surveying technical fields, and in particular to it is a kind of suitable for mountain stream, streams it is floating Swim the acquisition device of biology.

Background technique

Water body planktonic organism quantitative collection is investigation, analysis, the evaluation most basic work of water ecosystem, is accurately determined Amount acquisition is the key link of analysis, evaluation water ecosystem.

The quantitative collection of water body planktonic organism, " SCT 9402-2010 fresh water plankton technique for investigation specification ", " SC/T 9102.3-2007 Survey of Fishery Ecological Environment specification Part III fresh water ", " river ecological technique for investigation method ", " lake Fu Ying Feedingization investigation specifications " etc. clearly with organic glass hydrophore, pressed cover hydrophore acquire water sample, the former can be used for 30m's or more Waters, the latter can be used for the waters as deep as 100m or more, using planktonic organism net filtration again after coming in water sampling, being placed in specimen bottle It is fixed to save.

Mountain stream (streams) planktonic organism quantitative collection is generally fetched water with 2.5L, 5L organic glass hydrophore, life of swimming Object net filtration is placed on the fixed preservation of specimen bottle.The suspended matters such as silt, water silk floss are directly blended in one by this water sampling mode Fixed preservation is played, very burden is brought for the qualitative and quantitative analysis of later period planktonic organism.Due to planktonic organism individual compared with Small, the impurity such as silt, water silk floss are covered with the visual field, are difficult to carry out qualitative and quantitative analysis to planktonic organism, directly affect the accurate of data Property.

Summary of the invention

In order to solve the above-mentioned problems of the prior art, the present invention provides a kind of suitable for mountain stream, streams The acquisition device of planktonic organism, the apparatus structure is simple, easy to use, and collecting efficiency is high, and it is miscellaneous to can remove the interference such as silt, water cotton Matter.

Realize technical solution used by above-mentioned purpose of the present invention are as follows:

It is a kind of suitable for mountain stream, the acquisition device of the planktonic organism in streams, including bracket, settling box and filtering head, Settling box lower sidewall is equipped with water outlet, and water outlet is connected with the first drainpipe, and drainpipe is equipped with the first water valve, filtering head It passes through and is followed successively by interface, filtering area, collecting region and the second drainpipe, filtering area includes shell and filter screen, mistake It is lining on outer casing inner wall in strainer, shell is equipped with water outlet window, and interface, filtering area, collecting region and the second drainpipe successively connect Logical, the volume of filtering area is greater than the volume of collecting region, and the second drainpipe is equipped with the second water valve, and settling box is installed on bracket, Filtering head is vertically arranged, and interface is attached with the first drainpipe outlet by dismountable mode.

Filtering head is the circular pipe type structure of integral type, and the internal diameter of shell is greater than the internal diameter of collecting region.

There are two the water outlet windows, and two water outlet windows are symmetrically disposed on outer casing underpart.

Interface is equipped with external screw thread, is equipped with internal screw thread at the first drainpipe outlet, filtering head is connect with first row water pipe thread.

Settling box is cylindrical, and settling box side wall is equipped with the settling zone graduation mark of annular, precipitating at settling box bottom Area's graduation mark and water outlet are located at sustained height, and settling box top side wall is equipped with the constant volume graduation mark of annular.

The bracket is A-frame, and bracket includes platform, three supporting legs and pallet, and the upper end of each supporting leg and platform are cut with scissors It connects, the lower end of each supporting leg is equipped with balance adjustment screw, and pallet is in the form of annular discs, and pallet is installed on platform, the internal diameter of pallet and heavy The outer diameter of shallow lake bucket matches, and settling box is located on pallet.

Compared with prior art, advantages and advantages of the invention are:

1, the acquisition device is directed to the feature more than the impurity such as mountain stream, streams silt, first using settling box precipitating removal Silt and other impurities in sample containing planktonic organism, it is seen then that the sample containing planktonic organism is by the acquisition device After reason, the removal of impurity such as silt are high, hence it is evident that improve the acquisition quality of sample, it is easy to carry out to planktonic organism qualitative and quantitative Analysis, as a result accurately and reliably.

2, the acquisition device structure is simple, cheap, easy to use, and the device is detachable, easy to carry.

Detailed description of the invention

Fig. 1 is the structural schematic diagram suitable for mountain stream, the acquisition device of the planktonic organism in streams.

Fig. 2 is the structural schematic diagram of settling box.

Fig. 3 is the structural schematic diagram of filtering head.

Fig. 4 is the structural schematic diagram of bracket.

Fig. 5 is the main view of filtering area.Wherein, 1- settling box, 2- water outlet, the first drainpipe of 3-, the first drain valve of 4-, 5- interface, 6- filtering area, 7- shell, 8- filter screen, 9- collecting region, the second drainpipe of 10-, the second water valve of 11-, the settling zone 12- Graduation mark, 13- constant volume graduation mark, 14- platform, 15- supporting leg, 16- pallet, 17- balance adjustment screw, 18- are discharged window.

Specific embodiment

With reference to the accompanying drawing to the detailed description of the invention.

It is provided by the invention suitable for mountain stream, streams planktonic organism acquisition device structure as shown in Figure 1, should Acquisition device includes bracket, settling box 1 and filtering head.

As shown in Fig. 2, settling box 1 is cylindrical, the material of settling box is organic glass, and the diameter of settling box 1 is 21cm, Height is 35cm.1 side wall of settling box is equipped with the settling zone graduation mark 12 of annular, settling box side wall at 1 bottom 3cm of settling box The constant volume graduation mark 13 of annular is equipped at 1 bottom 29cm of settling box.1 side wall of settling box is set at 1 bottom 3cm of settling box There is water outlet 2.The first drainpipe 3 is connected at water outlet 2, the diameter of the first drainpipe 3 is 1.5cm, length 6cm.Draining Pipe 3 is equipped with the first water valve 4, and 3 exit of the first drainpipe is equipped with internal screw thread.

As shown in figure 3, filtering head is the circular pipe type structure of integral type, the material of filtering head is copper.Screen pipe from one end to The other end is followed successively by interface 5, filtering area 6, collecting region 9 and the second drainpipe 10, interface 5, filtering area 6, collecting region 9 and second row Water pipe 10 is sequentially communicated.Interface 5 is equipped with external screw thread.

Filtering area 6 includes shell 7 and filter screen 8, and the internal diameter of shell 7 is 5cm, length 6cm.As shown in figure 5, shell 7 It is cylindrical, 7 both ends open of shell.Two water outlet windows 18 are symmetrically arranged on shell 7, water outlet window 18 is arc-shaped, is discharged window 18 projections in the horizontal direction are square, and two edges up and down of water outlet window 18 are parallel to the two-port of shell 7.It is discharged window 18 Two edges up and down length be 6cm, be highly 5cm.It is lining in filter screen 8 on 7 inner wall of shell, the mesh number of filter screen 8 is 200 Mesh, the material of filter screen are artificial nylon material.

The internal diameter of collecting region 9 is 2.4cm, length 5cm.Second drainpipe 10 is equipped with the second water valve 11.Such as Fig. 4 institute Show, bracket is A-frame, and bracket includes 14, three supporting legs 15 of platform and pallet 16.Supporting leg is formed using reinforcement fabrication, supporting leg Surface applies antirust paint.The upper end of each supporting leg 15 and platform 14 are hinged, bracket when not used, supporting leg can be accepted, it is easy to carry. The lower end of each supporting leg 15 is equipped with 17, balance adjustment spiral shell, is adjusted by balance adjustment screw, and platform can be made to be in horizontal State.Pallet 16 is in the form of annular discs, and the diameter of pallet is 23cm, and pallet is installed on platform.

Settling box 1 is placed on pallet 16, and interface 5 is threadedly coupled with the first drainpipe 3.

The acquisition device when in use, is first shut off the first water valve and the second water valve, and the sample containing planktonic organism is put Enter in settling box, precipitated 5~10 minutes according to the impurity contents situation such as silt, after precipitating, opens the first water valve, water passes through Gravity enters in filtering head through the first drainpipe, is filtered in filtering area, filtered planktonic organism collecting region into Row is collected, and when collecting region is expired fastly, is opened the second water valve, is collected planktonic organism sample.

Claims

1. a collection device that is applicable to the plankton of mountain rivers, streams, including support, it is characterized in that: also comprise sedimentation bucket and filter head, sedimentation bucket side wall bottom is provided with water outlet, and the water outlet is connected with the first drainage There is a first water valve on the drain pipe, and the filter head is followed by an interface, a filter area, a collection area and a second drain pipe from one end to the other end. The filter area includes a shell and a filter screen, and the filter screen is lined on the inner wall of the shell There is a water outlet window on the shell, the interface, the filter area, the collection area and the second drain pipe are connected in sequence, the volume of the filter area is larger than the volume of the collection area, the second drain pipe is provided with a second water valve, and the sedimentation bucket is installed on the bracket The filter head is arranged vertically, and the interface is detachably connected with the outlet of the first drainage pipe.

2 . The plankton collecting device suitable for mountain rivers and streams according to claim 1 , wherein the filter head is an integral cylindrical structure, and the inner diameter of the casing is larger than that of the collection area. 3 .

3 . The plankton collecting device suitable for mountain rivers and streams according to claim 2 , characterized in that: there are two water outlet windows, and the two water outlet windows are symmetrically arranged on the lower part of the casing. 4 .

4. The plankton collecting device suitable for mountain rivers and streams according to claim 2, characterized in that: the interface is provided with external threads, the outlet of the first drain pipe is provided with internal threads, and the filter head and the first drain pipe are provided with internal threads. Threaded connection.

5. The collection device for plankton in mountain rivers and streams according to claim 1, characterized in that: the sedimentation bucket is cylindrical, and the sidewall of the sedimentation bucket is provided with an annular sedimentation zone scale line near the bottom of the sedimentation bucket, The scale line of the sedimentation area is located at the same height as the water outlet, and the top of the side wall of the sedimentation tank is provided with an annular constant volume scale line.

6. The plankton collecting device suitable for mountain rivers and streams according to claim 1, wherein the support is a triangular support, and the support comprises a platform, three legs and a tray, and the upper end of each leg is It is hinged with the platform, the lower end of each leg is provided with a balance adjustment screw, the tray is disc-shaped, the tray is installed on the platform, the inner diameter of the tray matches the outer diameter of the sedimentation bucket, and the sedimentation bucket is located on the tray.