CN211347559U

CN211347559U - Water quality sampler

Info

Publication number: CN211347559U
Application number: CN201922430175.7U
Authority: CN
Inventors: 廖俊成; 赵世朋; 郭会战; 曹勇
Original assignee: Qingdao Keyi Precision Equipment Co Ltd
Current assignee: Qingdao Keyi Precision Equipment Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-25
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a water quality sampler, including the sample thief body, still include water tank group and valve group, including being no less than two water tanks in the water tank group, valve group is including sampling valve, supply appearance valve, stay appearance valve and evacuation valve, wherein valve among the valve group all has three opening, and wherein two openings turn-offs the opening alone, respectively with two the water tank passes through the pipe connection, wherein, sampling valve pass through the inlet tube with the water tank is connected, supply appearance valve, stay appearance valve and evacuation valve pass through the outlet pipe with the water tank is connected. The water quality sampler provided by the utility model can shorten the sampling time, and ensure that more water samples can be mixed in a fixed sample-supplying interval time; meanwhile, the control complexity is reduced, the flows of sampling, sample supplying, emptying, sample reserving and the like run in parallel, mutual exclusion is avoided, and the system runs more reliably.

Description

Water quality sampler

Technical Field

The utility model relates to a water environment monitoring technology field, in particular to water quality sampler.

Background

The conventional automatic water quality sampler has the function that when a signal that the water quality exceeds the standard is received, only the function of reserving samples for the water samples exceeding the standard is needed, and new requirements are provided for the water quality sampler along with the release of No. 61 document 'technical requirements for installation and construction of pollution source automatic monitoring facilities', and the water quality sampler needs to provide sampling, sample supplying, sample reserving and emptying functions, and additionally requires a plurality of water samples to be mixed in a sample supplying interval, and then provides a mixed water sample.

At present, the common method is to share the same set of pipeline for sampling, sample supplying, sample reserving and emptying, and the switching is carried out through a valve. Therefore, each flow must be mutually exclusive, and sample supply, sample retention and sampling cannot be carried out when cleaning and emptying are carried out; when the sample is reserved, the sample cannot be supplied; the sample cannot be left when the sample is supplied. Therefore, the process efficiency is low, the sampling time is too long, the number of mixed water samples in the sample supply interval is limited, and the reliability of the water samples is reduced.

In addition, mutual exclusion is required among the flows, the control complexity is increased, errors are easy to occur, the maintenance amount of water quality sampling is increased, and the reliability of on-line monitoring equipment cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a water quality sampler can sample simultaneously, supplies kind, stays steps such as appearance, evacuation, including the sample thief body, still include water tank group and valve group, including two water tanks among the water tank group, valve group is including sampling valve, supply kind valve, stays kind valve and evacuation valve, wherein:

the valve in the valve group all has three opening, and wherein two openings turn off the opening alone, respectively with two the water tank passes through the pipe connection, wherein, the sampling valve pass through the inlet tube with the water tank is connected, supply kind valve, leave kind valve and evacuation valve pass through the outlet pipe with the water tank is connected.

Optionally, the water sampler comprises a plurality of groups of water tanks and a plurality of groups of valves, each group of water tanks corresponds to a group of valves

Optionally, the water quality sampler further comprises a valve controller, wherein the valve controller is electrically connected with the sampling valve, the sample supply valve, the sample retention valve and the emptying valve and is used for controlling the opening and closing of the independent shutoff port of each valve.

Optionally, the water quality sampler further comprises a sampling water pump, and the sampling water pump is connected with the sampling valve through a water inlet pipe.

Optionally, the water quality sampler further comprises a sample supply water pump, and the sample supply water pump is connected with the sample supply valve through a water outlet pipe.

Optionally, the diameter of a water outlet pipe connected with the sample supply valve in the water quality sampler is smaller than the diameters of other water outlet pipes.

Furthermore, the diameter of a water outlet pipe connected with the sample supply valve in the water quality sampler is 5-8 mm.

Optionally, in the water quality sampler, the water tank set is arranged on the upper part of the sampler body, and a plurality of sample retention bottles are arranged on the lower part of the water tank set and are connected with the sample retention valves through water outlet pipes.

Furthermore, in the water quality sampler, each sample retention bottle is connected with the sample retention valve through a water outlet pipe through a sample retention bottle valve which is controlled independently.

Optionally, in the water quality sampler, valves included in the valve group are all one-way valves.

The water quality sampler provided by the utility model can shorten the sampling time, so that the waiting is not needed during sampling, and more water samples can be mixed in a fixed sampling interval time; meanwhile, the control complexity is reduced, the flows of sampling, sample supplying, emptying, sample reserving and the like run in parallel, mutual exclusion is avoided, the system runs more reliably, and the maintenance work of workers is reduced.

Drawings

FIG. 1 is a schematic diagram of a water sampler used in the prior art;

fig. 2 is a schematic structural diagram of the water quality sampler of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses in provide a water quality sampler, can sample simultaneously, supply appearance, evacuation, stay the flow such as appearance. Specifically, the water quality sampler in this embodiment includes: sampler body 1 still includes water tank group and valve group, including two water tanks in the water tank group, valve group is including sampling valve 31, supply appearance valve 32, stay appearance valve 33 and evacuation valve 34, wherein:

the valve in the valve group all has three opening, and wherein two openings are for turning off the opening alone, respectively with two the water tank passes through the pipe connection, wherein, sampling valve 31 pass through the inlet tube with the water tank is connected, supply appearance valve 32, leave appearance valve 33 and evacuation valve 34 pass through the outlet pipe with the water tank is connected.

As shown in fig. 1, in the conventional water quality sampler, the processes of sample supply, sample retention and emptying share the same pipeline system, and are switched by valves, so that the processes are mutually exclusive. When the sample is supplied, the sample can not be reserved, and when the sample is emptied, the sample supply and the sample reservation can not be finished. In addition, when a sample is supplied or kept, the ports corresponding to the valves 2 and 3 must be opened first, which is complicated and inconvenient.

As shown in fig. 2, in the water quality sampler of the present embodiment, the water quality sampler includes a water tank set and a valve set, wherein the water tank set includes two water tanks, and the two water tanks are not communicated with each other. The valve group comprises a sampling valve 31, a sample supply valve 32, a sample retention valve 33 and an emptying valve 34. Two water tanks in a water tank group all are connected with sampling valve 31 through the inlet tube, and sampling valve 31 adopts the three-position three-way valve, promptly the valve has three kinds of states: the communication valve with the water tank 21 is opened, the communication valve with the water tank 22 is opened, and the state is closed. When sampling is carried out, water flows through the sampling valve 31, and when the water tank 21 is used for sampling, the valve 31a is opened and the valve 31b is closed; when the water tank 22 is used for sampling, the valve 31b is opened, and the valve 31a is closed; when sampling is stopped, both 31a and 31b are turned off.

Furthermore, the water quality sampler in this embodiment may include the multiunit the water tank group and the multiunit valve group, every water tank group includes two water tanks, corresponds a set of valve group, and a set of valve group connects two water tanks promptly, mutual independent control.

Further, the water quality sampler further comprises a sampling water pump 41, and the sampling water pump 41 is connected with the sampling valve 31 through a water inlet pipe. The sampling water pump 41 is used for pumping a water sample to be detected and storing the water sample into a designated water tank through the sampling valve 31.

In addition, referring to fig. 2, the water tank in the water quality sampler is also connected with a sample supply valve 32, a sample retention valve 33 and an emptying valve 34 through water outlet pipes respectively. The sample supply valve 32, the sample retention valve 33, and the drain valve 34 are configured in accordance with the sampling valve 31, and are three-position three-way valves having three states.

The purpose of the sample feeding operation is to provide the currently sampled obtained sample to the detection party for real-time detection. Similar to the sampling operation, when the sample supply operation is performed, the opening and closing of the sample supply valve 32 are controlled, and when the sample in the water tank 21 is reserved, the valve 32a is opened and the valve 32b is closed; when a sample in the water tank 22 is reserved, the valve 32b is opened, and the valve 32a is closed; when the sample is stopped, both 32a and 32b are closed.

Further, optionally, the water quality sampler further comprises a sample supply water pump 42, and the sample supply water pump 42 is connected with the sample supply valve 32 through a water outlet pipe. The sample water pump 42 is used for delivering the water sample flowing out through the sample valve 32 to the detection party for examination.

The purpose of the sample retention operation is to save the currently sampled sample for later study. When the sample reserving operation is carried out, the opening and closing of the sample reserving valve 33 are controlled, and when the sample in the water tank 21 is reserved, the valve 33a is opened, and the valve 33b is closed; when a sample in the water tank 22 is reserved, the valve 33b is opened, and the valve 33a is closed; when the sample is stopped, both 33a and 33b are closed.

Further, in the water quality sampler of this embodiment, the water tank group is located the upper portion of sample thief body 1 the water tank group lower part is equipped with a plurality of sample bottles 5 that stay, stay sample bottle 5 with stay sample valve 33 and pass through outlet pipe connection.

The number of the sample retention bottles 5 can be selected by an operator according to the requirement, and the utility model discloses do not do the restriction to this. Preferably, in order to ensure the number of sample retention samples for subsequent research, the number of sample retention bottles 5 can be set to be about 20, the sample retention bottles can be evenly distributed in each water tank, and the number of samples in a certain water tank can be selected according to actual conditions, namely, a plurality of sample retention bottles 5 are arranged under the water tank. The sample retention bottle 5 is connected with the sample retention valve 33 through a water outlet pipe, and when sample retention operation is carried out, a water sample is injected into the sample retention bottle 5 through the sample retention valve 33.

Furthermore, in the water quality sampler, each sample retention bottle is connected with the sample retention valve 33 through a water outlet pipe through a sample retention bottle valve 51 which is controlled independently. Leave a kind bottle valve 51 one end with leave a kind valve 33 and be connected, one end with leave a kind bottle 5 and connect, the figure with leave a kind bottle figure one-to-one. The user can select the figure of staying the appearance bottle as required when staying kind operation, and then control stay the number that appearance bottle valve 51 was opened, the quantity of the reasonable control sample water sample of staying.

When the sampling is finished and the sample supply and sample retention operations do not need to be carried out continuously, or under the conditions that the sample is collected by mistake and the water tank needs to be cleaned, the emptying operation needs to be carried out. In this embodiment, the evacuation operation is also performed through a three-position, three-way evacuation valve 34. When the sample in the water tank 21 is emptied, the valve 34a is opened, and the valve 34b is closed; when the sample in the water tank 22 is emptied, the valve 34b is opened, and the valve 34a is closed; when not evacuated, both 34a, 34b are closed.

Preferably, in this embodiment, the sampling valve 31, the sample supply valve 32, the sample retention valve 33 and the evacuation valve 34 included in the valve set are all one-way valves to control the flow direction of the water flow and prevent backflow. That is, the water flows only through the sampling valve 31 to the water tanks 21 and 22, and only through the water tanks 21 and 22 to the sample supply valve 32, the sample retention valve 33, and the drain valve 34, and further to the sample supply pump, the sample retention bottle, or the outside of the water quality sampler.

The water quality sampler in the embodiment has the advantages that the sampling valve, the sample supply valve, the sample retention valve and the emptying valve are arranged in parallel, so that the processes can be executed in parallel, mutual exclusion is avoided, the efficiency is greatly improved, and more water samples can be mixed in the sample supply interval time. The integral sampling system of the water quality sampler is more reliable, and the defect that workers need to maintain frequently is overcome.

Optionally, in this embodiment, the diameter of the water outlet pipe connected to the sample supply valve is smaller than the diameters of the other water outlet pipes. In order to improve the speed of water sample supply, a thinner water outlet pipe can be selected as the water outlet pipe connected with the sample supply valve, and the water outlet pipe is thinner than a sample retention flow and an emptying flow. Furthermore, the diameter of a water outlet pipe connected with the sample supply valve is 5-8 mm, so that the efficiency of a sample supply process can be improved better.

Further, in the water quality sampler of this embodiment, the water quality sampler further includes a valve controller 6, and the valve controller is electrically connected to the sampling valve 31, the sample supply valve 32, the sample retention valve 33, and the drain valve 34, and is configured to control opening and closing of the individual shutoff ports of each of the valves.

The valve controller 6 can be manually controlled by manpower, and can also be automatically controlled by a set program, and the utility model discloses do not relate to the program improvement of control valve controller 6.

The valve controller 6 is used for controlling the processes of sampling, sample supplying, sample reserving, emptying and the like, and selecting a water tank as a target object. For example, if it is desired to sample in the water tank 22, leave the sample and supply the sample in the water tank 21, and the number of the sample left satisfies the process of draining the water tank 21, the valve controller may control the sampling valves 31b to open and 31a to close, the sample supply valves 32a and 33a to open, the sample supply valves 32b and the sample leave valves 33b to close, and the

drain valves

34a and 34b to close, until the sample supply and sample leave processes are finished, the valve controller 6 controls the

drain valves

34a and 34b to open and close, thereby completing the above process.

The utility model provides a valve group mutual independence can open simultaneously or close, therefore valve controller 6 also can realize controlling each valve alone, realizes going on in parallel between the different flows. The water quality sampler shown in figure 1 does not need to be considered, and the sample can be supplied only by closing the emptying valve and then opening the sample supply valve.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that other changes and modifications may be made to these embodiments without departing from the spirit or essential characteristics of the invention.

Various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a water quality sampler, includes the sample thief body, its characterized in that still includes water tank group and valve group, including two water tanks in the water tank group, valve group is including sampling valve, confession appearance valve, stays kind valve and evacuation valve, wherein:

2. The water sampler of claim 1, wherein the water sampler comprises a plurality of sets of said tanks and a plurality of sets of said valves, each set of said tanks corresponding to a set of said valves.

3. The water sampler of claim 1, further comprising a valve controller electrically connected to the sampling valve, the sample supply valve, the sample retention valve, and the drain valve for controlling the opening and closing of the individual shut-off ports of each of the valves.

4. The water sampler of claim 1, further comprising a sampling water pump, wherein the sampling water pump is connected to the sampling valve via a water inlet pipe.

5. The water sampler of claim 1, further comprising a sample water pump, wherein the sample water pump is connected to the sample valve via a water outlet pipe.

6. The water sampler of claim 1 or 5 wherein the diameter of the outlet pipe connected to the sample valve is smaller than the diameter of the other outlet pipes.

7. The water sampler of claim 1, wherein the water tank set is arranged on the upper part of the sampler body, a plurality of sample retention bottles are arranged on the lower part of the water tank set, and the sample retention bottles are connected with the sample retention valves through water outlet pipes.

8. The water sampler of claim 7 wherein each of said sample retention vials is connected to said sample retention valve by an outlet tube through an individually controlled sample retention vial valve.

9. The water sampler of claim 1 wherein the valves included in the valve group are all one-way valves.