CN112577776A

CN112577776A - Water intaking equipment for water quality testing

Info

Publication number: CN112577776A
Application number: CN202011321658.4A
Authority: CN
Inventors: 郑晓群
Original assignee: Individual
Current assignee: Guangdong Yueqiu Testing Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-03-30
Anticipated expiration: 2040-11-23
Also published as: CN112577776B

Abstract

The invention discloses water taking equipment for water quality detection, which comprises a main box, wherein a plurality of water taking grooves are formed in the main box, an inflation groove is formed in the upper end of each water taking groove, a water taking opening is formed in the side wall of each water taking groove, a water taking closing mechanism is arranged in each water taking groove, a measuring cavity is formed in the main box, a pressure measuring hole and a discharge hole are formed in the side wall of the measuring cavity, and a heating groove communicated with the inside of the measuring cavity is formed in the main box. Has the advantages that: according to the invention, the sealing plate is arranged and the water taking groove is inflated by the inflation groove, so that the sealing plate seals the water leakage hole under the action of air pressure, and the sealing plate can move to take water only when the external air pressure is greater than the internal air pressure, so that the inflation pressure can be controlled to realize positioned water taking, relatively accurate depth-fixed water taking is realized, and the reliability and the comprehensiveness of monitoring data analysis are improved.

Description

Water intaking equipment for water quality testing

Technical Field

The invention relates to the technical field of environmental monitoring, in particular to water taking equipment for water quality detection.

Background

The water quality monitoring is a process of monitoring and measuring the types of pollutants in the water body, the concentrations and the variation trends of various pollutants and evaluating the water quality condition; water quality sampling is an important link of water quality monitoring, and accurate extraction of water body samples at specific time and spatial positions is required;

when deep water is sampled, a plurality of layers of deep samples are often required to be sampled according to depth gradients, the existing sampling equipment has single function, generally, only one depth sample can be taken once, containers are required to be lowered for sampling for many times during layered sampling, time and labor are wasted, and water samples of other depth layers are easy to mix during taking out; the part uses electrical components such as solenoid valve to guarantee leakproofness and promotion operability, but electrical components leaks easily and damages at work under water, needs to design extremely reliable watertight fittings, even design watertight fittings, electrical components still can wet gradually, shortens life greatly, still has great defect, consequently needs a reliable water intaking equipment that can the layering sample urgently.

Disclosure of Invention

The invention aims to solve the problem of inconvenience in layered water taking in the prior art, and provides water taking equipment for water quality detection.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a water intaking equipment for water quality testing, includes the main tank, a plurality of water intaking grooves have been seted up to the inside of main tank, every the upper end of water intaking groove has all been seted up the gas cell, every the intake has all been seted up to the lateral wall of water intaking groove, every the inside water intaking closing mechanism that all is equipped with of water intaking groove, the inside of main tank has been seted up and has been measured the chamber, measure the lateral wall in chamber and seted up pressure measurement hole and discharge hole, the heating bath with measuring intracavity portion intercommunication is seted up to the inside of main tank, it is equipped with pressure measurement mechanism to measure intracavity portion, there is the balancing weight bottom of main tank through connecting spring connection, the outer wall of main tank is fixed with annular buoyancy bag, it is equipped with the heating strip that extends to buoyancy bag inside.

In foretell water intaking equipment for water quality testing, water intaking closing mechanism is including being fixed in the loading board of water intaking groove inner wall, the hole that leaks has been seted up to the upper end of loading board, the inner wall sealing sliding connection of water intaking groove has the closing plate, the inner wall of water intaking groove is fixed with the heating cabinet, the water inlet has been seted up to the upper end of heating cabinet, the upper end of heating cabinet is run through to be inserted and is equipped with the heat conduction strip, the inside sodium hydroxide granule that all fills of heating cabinet and heating cabinet, loading board upper portion and the inside dichloromethane solution that all fills of floating bag.

In foretell water intaking equipment for water quality testing, the pressure measurement mechanism is including being fixed in the baffle of measuring the intracavity wall, the lateral wall of baffle has the clamp plate through pressure measurement spring coupling, the measuring hole has been seted up to the lateral wall of baffle, the lateral wall of clamp plate is rotated through the torsional spring and is connected with the baffle, it is fixed with the trigger box to measure intracavity portion, the inner wall sealing sliding connection of trigger box has the push pedal, the upper end of push pedal is fixed with the pin.

In the water intaking equipment for water quality detection, the bottom of the main box is fixed with the piezoelectric block, electrorheological fluid is filled in the trigger box, the stop lever penetrates through the upper part of the trigger box and abuts against the baffle, the inside of the measuring hole is provided with the one-way valve, and the pressure plate is connected with the inner wall of the measuring cavity in a sealing and sliding manner.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the sealing plate is arranged and the water taking groove is inflated by the inflation groove, so that the sealing plate seals the water leakage hole under the action of air pressure, and the sealing plate can move to take water only when the external air pressure is greater than the internal air pressure, so that the inflation pressure can be controlled to realize positioned water taking, relatively accurate depth-fixed water taking is realized, and the reliability and the comprehensiveness of monitoring data analysis are improved;

2. according to the invention, by arranging the heating box, when water is taken in stages, water is fed into the heating box, so that sodium hydroxide particles are dissolved and heat is released, heat is transferred to dichloromethane through the heat conducting strip, the dichloromethane is heated and gasified, the air pressure in the water taking groove is increased suddenly, the water taking opening is sealed again by the sealing plate, external water flow does not enter any more, the purity of a water source after water taking is ensured, the water source is not mixed with water flows at other depths, and the detection quality is improved;

3. according to the invention, by arranging the piezoelectric blocks, after the piezoelectric blocks sink to the lake bottom, the piezoelectric blocks are impacted to generate electricity, so that the baffle is limited, the pressing plate moves under the action of external water pressure, water enters the heating tank, the temperature in the heating tank is rapidly raised, dichloromethane in the floating bag is gasified by absorbing heat, the expansion buoyancy of the floating bag is increased, the whole equipment can float upwards automatically, and the collection is convenient;

4. according to the invention, the pressure measuring spring is arranged, under the action of the water pressure of the lake bottom, the pressure measuring spring is caused to continuously contract by the movement of the pressing plate until the elasticity of the pressure measuring spring is the same as the water pressure, and the contraction distance of the pressure measuring spring can be reversely calculated through the volume of the extruded water flow, so that the water pressure of the lake bottom can be measured and calculated according to the contraction distance of the pressure measuring spring, the depth of the lake bottom can be reversely calculated, the depth of a water area can be obtained in an unknown water area, and the monitoring of.

Drawings

FIG. 1 is a schematic structural diagram of a water intake device for water quality detection according to the present invention;

FIG. 2 is a cross-sectional view taken along the direction A in FIG. 1;

fig. 3 is a schematic structural view of a partition portion in a water intake apparatus for water quality detection according to the present invention.

In the figure: the device comprises a main tank 1, a water taking tank 2, an inflation tank 3, a water taking opening 4, a bearing plate 5, a water leakage hole 6, a sealing plate 7, a heating tank 8, a water inlet 9, a heat conduction strip 10, a connecting spring 11, a balancing weight 12, a measuring cavity 13, a pressure measuring hole 14, a discharge hole 15, a heating tank 16, a floating bag 17, a heating strip 18, a partition plate 19, a piezoelectric block 20, a measuring hole 21, a baffle 22, a trigger box 23, a push plate 24, a stop lever 25, a pressure measuring spring 26 and a pressure plate 27.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-3, a water intaking equipment for water quality testing, including main tank 1, a plurality of water intaking grooves 2 have been seted up to main tank 1's inside, inflation tank 3 has all been seted up to the upper end of every water intaking groove 2, be equipped with manual valve in the inflation tank 3, water intaking mouth 4 has all been seted up to the lateral wall of every water intaking groove 2, the inside water intaking closing mechanism that all is equipped with of every water intaking groove 2, measurement chamber 13 has been seted up to main tank 1's inside, pressure measurement hole 14 and discharge hole 15 have been seted up to the lateral wall of measuring chamber 13, be equipped with manual valve in the discharge hole 15, main tank 1's inside heating bath 16 with the inside intercommunication in measurement chamber 13 is seted up, the inside pressure measurement mechanism that is equipped with in measurement chamber 13, main tank 1's bottom is connected with balancing weight 12 through connecting spring 11, main tank 1's outer wall is fixed with annular buoyancy.

Water intaking closing mechanism is including being fixed in the loading board 5 of 2 inner walls in water intaking groove, the hole 6 that leaks has been seted up to the upper end of loading board 5, the inner wall sealing sliding connection in water intaking groove 2 has closing plate 7, the inner wall of water intaking groove 2 is fixed with heating cabinet 8, water inlet 9 has been seted up to the upper end of heating cabinet 8, the upper end of heating cabinet 8 is run through and is inserted and be equipped with heat conduction strip 10, heating cabinet 8 and 16 inside all packings in heating cabinet have the sodium hydroxide granule, the inside dichloromethane solution that all packs of loading board 5 upper portion and floating bag 17.

The pressure measuring mechanism is including being fixed in the baffle 19 of measuring the intracavity 13 inner wall, the lateral wall of baffle 19 is connected with clamp plate 27 through pressure measuring spring 26, be full of water between clamp plate 27 and baffle 19, pressure measuring spring 26 is in original length at the beginning, and clamp plate 27 seals pressure cell 14, measuring hole 21 has been seted up to the lateral wall of baffle 19, the lateral wall of clamp plate 27 is connected with baffle 22 through the torsional spring rotation, it is fixed with trigger box 23 to measure intracavity 13 inside, the sealed sliding connection of inner wall of trigger box 23 has push pedal 24, the upper end of push pedal 24 is fixed with pin 25.

The bottom of the main box 1 is fixed with a piezoelectric block 20, the piezoelectric block 20 is made of piezoelectric ceramics, electrorheological fluid is filled in the trigger box 23, a stop rod 25 penetrates through the upper part of the trigger box 23 and abuts against a baffle 22, a one-way valve is arranged in the measuring hole 21 to prevent backflow of extruded water under the action of pressure, the accuracy of measured data is ensured, a water injection pipe is arranged on the side wall of the measuring cavity 13 and can add water between a pressure plate 27 and a partition plate 19 for repeated measurement, the pressure plate 27 is in sealed sliding connection with the inner wall of the measuring cavity 13, the piezoelectric block 20 can cause the electrorheological fluid to solidify and expand after impact, although the expansion and deformation of the electrorheological fluid are instantly completed and recovered, the stop rod 25 is L-shaped, after moving upwards to separate from the baffle 22, the baffle 22 deflects, the fallen stop rod 25 can not assist the baffle 22 to seal the measuring hole 21 any more, so that the impact is not affected, and, when the baffle 22 automatically rotates, the baffle is blocked by the stop rod 25, and the piezoelectric block 20 is impacted again to drive the stop rod 25 to move back.

In the invention, when in actual use, according to the depth of a water source to be taken, the water pressure of the response depth can be measured by utilizing a water pressure and water depth formula, so that the air is filled into the water taking tank 2 from the air filling tank 3, the pressure inside the water taking tank 2 is equal to the water pressure at a required position, the air pressure inside the water taking tank 2 can be simply measured by a barometer, the supplement is not carried out again, the numerical value is relatively accurate, and the water taking depth can be ensured to be relatively accurate;

after the aeration is finished, the main tank 1 can be horizontally placed into water, the main tank 1 can smoothly sink under the action of the counter weight block 12 and the self gravity, when the specified depth is reached, the surrounding water pressure reaches the air pressure value inside the water taking tank 2, so that when the main tank 1 reaches the position close to the required position, the sealing plate 7 moves towards the inside of the water taking tank 2 under the action of the difference of internal and external pressure, the water leakage hole 6 is not sealed any more, and external lake water can enter the lower space of the bearing plate 5 through the water taking hole 4, so that the water taking is finished;

along with the increase of the water intake amount, water flow enters the heating box 8 through the water inlet 9, so that a large amount of heat is generated after sodium hydroxide particles in the heating box 8 are contacted with water, the temperature in the heating box 8 is sharply increased, the heat conducting strips 10 transmit the heat to dichloromethane solution on the upper part of the bearing plate 5, dichloromethane is gasified by absorbing heat, the air pressure in the water taking groove 2 is sharply increased and is far larger than the water pressure, the sealing plate 7 is pushed to move, the sealing plate 7 seals the water leakage holes 6 again, water taking at the appointed position is completed, water taking at the subsequent depth does not enter the water taking groove 2 any more, effective separation of water taking at each position is guaranteed, and the accuracy of subsequent detection is guaranteed;

in the process of sinking the main tank 1, under the action of gravitational acceleration, the main tank 1 will make accelerated motion, so that after the main tank 1 sinks, the counterweight block 12 will generate relatively violent collision with the piezoelectric block 20, so that the piezoelectric block 20 instantly generates high pressure, which will cause solidification expansion of the electrorheological fluid after being applied with the electrorheological fluid, so that the electrorheological fluid pushes the stop rod 25 to move upwards, so that the stop rod 25 is separated from the position of the baffle 22, so that the baffle 22 is no longer obstructed by the stop rod 25, and at this time, the external water pressure is large, the pressure plate 27 actually receives a large water pressure effect, because the baffle 22 cannot rotate, the measuring hole 21 is blocked, so that the pressure plate 27 cannot move, and after the pressure measurement of the baffle 22 is lost, under the action of the external water pressure, the pressure plate 27 will compress the spring 26 and slide towards the inside of the measuring cavity 13, so that the water flow on one side of the partition plate 19 close to the pressure plate 27 enters the other side of the partition, the pressing plate 27 is acted by the elastic force of the pressure measuring spring 26 and the external water pressure at the moment, after the acting forces of the pressure measuring spring 26 and the external water pressure are balanced, the pressing plate 27 stops moving and does not go deep any more, in this state, the water flow passing through the measuring hole 21 is determined, and no addition or loss exists subsequently, so that the volume of the part of the water flow is measured, the actual moving distance of the pressure measuring spring 26 can be measured by combining the sectional area of the measuring cavity 13, the actual spring elastic force can be measured according to a formula of the spring elastic force and the compression distance, the water pressure at the bottom of the lake is obtained through matching, the depth of the bottom of the lake is measured, the water area depth data can be obtained while the water quality collection is;

and when clamp plate 27 removed, outside rivers will get into through pressure cell 14 to flow into in heating tank 16, make the inside sodium hydroxide granule heat production of heating tank 16, this heat passes through heating strip 18 and transmits to floating bag 17 in, make the dichloromethane in it be heated gasification, and then make floating bag 17 gently expand, until holistic buoyancy is greater than gravity, make main tank 1 can automatic come-up, be convenient for collect.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A water taking device for water quality detection comprises a main box (1) and is characterized in that a plurality of water taking grooves (2) are formed in the main box (1), an inflation groove (3) is formed in the upper end of each water taking groove (2), a water taking opening (4) is formed in the side wall of each water taking groove (2), a water taking closing mechanism is arranged in each water taking groove (2), a measuring cavity (13) is formed in the main box (1), a pressure measuring hole (14) and a discharge hole (15) are formed in the side wall of the measuring cavity (13), a heating groove (16) communicated with the inside of the measuring cavity (13) is formed in the main box (1), a pressure measuring mechanism is arranged in the measuring cavity (13), the bottom of the main box (1) is connected with a balancing weight (12) through a connecting spring (11), and an annular floating bag (17) is fixed on the outer wall of the main box (1), and a heating strip (18) extending to the inside of the floating bag (17) is inserted into the heating groove (16).

2. The water intake device for water quality detection according to claim 1, wherein the water intake closing mechanism comprises a bearing plate (5) fixed on the inner wall of the water intake tank (2), the upper end of the bearing plate (5) is provided with a water leakage hole (6), the inner wall of the water intake tank (2) is connected with a closing plate (7) in a sealing and sliding manner, the inner wall of the water intake tank (2) is fixed with a heating tank (8), the upper end of the heating tank (8) is provided with a water inlet (9), the upper end of the heating tank (8) is inserted with a heat conduction strip (10) in a penetrating manner, the heating tank (8) and the heating tank (16) are both filled with sodium hydroxide particles, and the upper part of the bearing plate (5) and the floating bag (17) are both filled with dichloromethane solution.

3. The water intake equipment for water quality testing according to claim 1, characterized in that the pressure measuring mechanism comprises a partition plate (19) fixed on the inner wall of the measuring cavity (13), the side wall of the partition plate (19) is connected with a pressure plate (27) through a pressure measuring spring (26), the side wall of the partition plate (19) is provided with a measuring hole (21), the side wall of the pressure plate (27) is rotatably connected with a baffle (22) through a torsion spring, the measuring cavity (13) is internally fixed with a trigger box (23), the inner wall of the trigger box (23) is connected with a push plate (24) in a sealing and sliding manner, and the upper end of the push plate (24) is fixed with a stop lever (25).

4. The water intake equipment for water quality detection according to claim 3, wherein the bottom of the main box (1) is fixed with a piezoelectric block (20), the interior of the trigger box (23) is filled with electrorheological fluid, the stop rod (25) penetrates through the upper portion of the trigger box (23) and abuts against the baffle (22), the interior of the measuring hole (21) is provided with a one-way valve, and the pressure plate (27) is in sealed sliding connection with the inner wall of the measuring cavity (13).