CN210322521U

CN210322521U - Pretreatment device for online monitoring of water quality

Info

Publication number: CN210322521U
Application number: CN201921048777.XU
Authority: CN
Inventors: 宗永宁
Original assignee: Suzhou Prifi Environmental Protection Technology Co Ltd
Current assignee: Suzhou Prifi Environmental Protection Technology Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-04-14
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a pretreatment device for online monitoring of water quality, which belongs to the technical field of water quality monitoring, and adopts the technical scheme that the pretreatment device comprises a hollow box body, wherein a first clapboard is arranged in the box body along the width direction, the width of the first clapboard is smaller than the depth of the box body, and the lower edge of the first clapboard is not contacted with the inner bottom wall of the box body; a second partition plate is arranged between the first partition plate and a box body side plate, one side of the second partition plate is parallel to the first partition plate, and the second partition plate is arranged along the length direction of the box body; a filtering screen plate for filtering suspended impurities in the water body is detachably arranged on each of two sides of the second partition plate, and a water flow direction conversion mechanism is arranged between the upper part of the second partition plate and a top plate of the box body; a water inlet pipe is communicated with a position, which is opposite to the water flow direction conversion mechanism, on a top plate of the box body; the box body is also communicated with a water outlet pipe and a sampling port which are positioned on one side of the first clapboard, which deviates from the filter screen. The utility model discloses can effectively reduce water quality testing interference factors such as solid-state suspended solid in the water, improve the water quality testing data degree of accuracy.

Description

Pretreatment device for online monitoring of water quality

Technical Field

The utility model relates to a water quality monitoring technology field, more specifically say, it relates to a preprocessing device is used in online monitoring of quality of water.

Background

The waste water that enterprise's water pollution source discharged because contain a large amount of solid particulate matter or the flocculent suspended solid, when carrying out the online automatic monitoring of quality of water to it, if can not be with the solid particulate matter or the flocculent suspended solid filtering that exist in a large number in the water sample that awaits measuring, quality of water automatic analysis instrument can't carry out correct measurement to it at all, leads to monitoring data to appear the deviation or the accuracy is relatively poor. Therefore, before entering the automatic water quality analysis instrument for measurement, the water sample must be properly pretreated to eliminate interference factors affecting the correct measurement of the instrument and factors causing damage to the instrument.

In the prior art, a pretreatment device is mostly adopted to pretreat the water body so as to reduce interference factors such as solid impurities, suspended particles and the like in the water body to be detected and improve the precision and accuracy of a detection result. Chinese patent No. CN205301049U discloses a water sample pretreatment device for online monitoring of water quality, which comprises a sealing cover, a filter screen, and a water container, wherein the sealing cover is matched with the top surface of the water container, a support table is arranged on the inner side wall of the water container, and the filter screen is arranged on the support table.

However, the above pretreatment apparatus still has a problem of clogging of the screen due to deposition of scale or adhesion of suspended impurities. Therefore, in order to maintain the optimum pretreatment effect, the filter screen needs to be replaced periodically. After the filter screen is detached, a large amount of water containing impurities in the water container can be filled with the water container, so that a large amount of impurities are attached to the inner wall of one sampling side of the original filter screen. When a new filter screen is installed, impurities attached to the side wall of the water container are still easy to stay on the sampling side of the filter screen, and a subsequently taken water sample is polluted after water is introduced again, so that the water quality detection result is not accurate enough. Thus, there is a need for further improvements to existing pretreatment devices.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a preprocessing device is used in online monitoring of quality of water, it has the advantage that can effectively reduce water quality testing interference factors such as solid-state suspended solid in the water, improve the quality of water testing data degree of accuracy.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a pretreatment device for online water quality monitoring comprises a hollow box body, a water inlet pipe and a water outlet pipe which are communicated with the box body, and a sampling port which is arranged on the top wall of the box body and is used for collecting water samples, wherein a first partition plate with the width smaller than the depth of the box body is arranged in the box body along the width direction, and the lower edge of the first partition plate is not contacted with the inner bottom wall of the box body; a second partition plate is arranged between the first partition plate and a box body side plate, one side of the second partition plate is parallel to the first partition plate, and the second partition plate is arranged along the length direction of the box body; a filtering screen plate for filtering suspended impurities in a water body is detachably arranged on each of two sides of the second partition plate, and a water flow direction switching mechanism is arranged between the upper part of the second partition plate and a top plate of the box body; the water inlet pipe is communicated with the top plate of the box body, and the communicated part is opposite to the water flow direction conversion mechanism; the communicating position of outlet pipe and box and sample connection all are located the one side that first baffle deviates from the filter screen.

Through adopting above-mentioned technical scheme, the water lets in the box via the inlet tube, and the filtration half tone of arbitrary one side of rivers flow direction switching mechanism flow direction to via rivers. Under the filtration of filtering half tone, solid-state suspended impurity etc. are got rid of in the water for hardly contain solid-state suspended impurity in the water sample of taking via the sample connection, greatly reduced the interference to water quality testing, improved the accuracy of testing result. And the water body filtered by the filtering screen plate is guided out from the water outlet pipe. Due to the fact that the water flow direction switching mechanism is arranged, the filtering screen plates on the two sides of the second partition plate can be used alternately, the filtering partition plates can be replaced alternately, the water body pretreatment does not need to be suspended when the filtering partition plates are replaced, and water sample pollution of follow-up collection is not prone to being caused.

Furthermore, the filtering screen printing plate comprises a filtering plate with filtering holes uniformly distributed and a sealing strip arranged along the periphery of the filtering plate, inserting slots for inserting the filtering screen printing plate are formed in side plates on two sides of the box body in the length direction, and a first clamping groove for inserting the filtering screen printing plate is formed in the side face, facing the inserting slots, of the second partition plate.

By adopting the technical scheme, when the filtering screen is installed, the filtering screen is inserted into the end part from the slot and clamped into the first clamping groove. The setting of sealing strip makes the installation of filtering half tone stable, and slot department is difficult for leaking.

Furthermore, a holding part is arranged on one side of the filtering screen plate, which is far away from the second partition plate.

Through adopting above-mentioned technical scheme, the portion of gripping is convenient for grip when the pull filters half tone, has increased the convenience that the half tone was filtered in the dismouting.

Furthermore, second clamping grooves are formed in the first partition plate and the box body side plate, and the two sides of the filtering screen plate are clamped into the second clamping grooves in the first partition plate and the box body side plate respectively.

Through adopting above-mentioned technical scheme, further increased the installation stability and the firm nature of filtering the half tone.

Furthermore, the water flow direction conversion mechanism comprises a guide plate, a rotating shaft arranged along the length direction of the box body and an operation part for operating the rotating shaft to rotate; the rotating shaft is arranged below the guide plate and is fixedly connected with the guide plate; one end of the rotating shaft is rotatably connected to the first partition plate, and the other end of the rotating shaft penetrates through the side plate of the box body and extends out; the control component is arranged at one end of the rotating shaft extending out of the box body.

Through adopting above-mentioned technical scheme, can make the pivot rotate through controlling the part to drive the guide plate and filter half tone slope towards one side, in order to realize two alternate use or the change in turn that filter half tone.

Furthermore, the control component comprises a poke rod arranged perpendicular to the rotating shaft, a limiting plate arranged on a side plate of the box body and a balancing weight arranged at one end of the poke rod far away from the rotating shaft; the limiting plate is provided with a strip-shaped groove with the length direction perpendicular to the axial direction of the rotating shaft, and the poke rod penetrates through the strip-shaped groove.

Through adopting above-mentioned technical scheme, pull the poker rod along bar groove length direction for the poker rod inclines to bar groove one end, makes the pivot drive guide plate simultaneously and filters half tone slope towards one side. Because the shifting rod is provided with the balancing weight at the end far away from the rotating shaft, the gravity center of the control component is integrally positioned at one side of the rotating shaft, the shifting rod is not easy to rotate by itself, and the guide plate can keep an inclined state.

Further, the balancing weight is spherical.

Through adopting above-mentioned technical scheme, spherical balancing weight is convenient for hold, has the effect of conveniently pulling poker rod.

Furthermore, a supporting plate used for supporting the guide plate when the guide plate rotates to an inclined state is arranged on the second partition plate.

Through adopting above-mentioned technical scheme, the guide plate rotates when being the tilt state, and the guide plate bottom surface is inconsistent with the backup pad for the guide plate can more stably keep the tilt state.

Further, the box includes the detachable case lid, the sample connection set up in the case lid.

Through adopting above-mentioned technical scheme, dismantle the case lid and can clear up the box, made things convenient for and carried out periodic overhaul to preprocessing device.

Furthermore, a plurality of limiting blocks for placing the box cover are arranged on the inner side wall of the box body and the first partition plate.

Through adopting above-mentioned technical scheme, the stopper is used for playing the bearing effect to the case lid, and the lid closes the case lid and makes the case lid periphery rest in stopper department can. When necessary, the cover can be locked and fixed firmly by matching with the locking piece.

To sum up, the utility model discloses following beneficial effect has:

the utility model discloses a be provided with two blocks of screen printing boards of filtering in the box, and separate through the second baffle between two blocks of screen printing boards of filtering to cooperation rivers flow direction shifter makes two blocks of screen printing boards of filtering be used for in turn filtering the preliminary treatment to the water, has reduced interference factors such as solid-state suspension impurity in the collection water sample by a wide margin, has improved the accuracy of water detection data. And, the utility model discloses can alternate use or change in turn and filter the half tone, not only be difficult for causing the water sample pollution of follow-up collection at the in-process of changing the filtration half tone, need not the pause when changing the filtration half tone moreover and to water preliminary treatment, can gather the high quality water sample in real time, satisfy quality of water on-line monitoring demand.

Drawings

FIG. 1 is a first schematic structural diagram of a pretreatment device for on-line monitoring of water quality in an embodiment;

FIG. 2 is a sectional view of a pretreatment device for online monitoring of water quality in an embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural diagram of a pretreatment device for on-line monitoring of water quality in an embodiment II;

fig. 5 is an enlarged view of a portion B in fig. 4.

In the figure: 1. a box body; 11. a box cover; 111. a sampling port; 12. a limiting block; 13. a limiting plate; 131. a strip-shaped groove; 14. a slot; 2. a water inlet pipe; 21. a valve; 3. a water outlet pipe; 4. a first separator; 41. a second card slot; 5. a second separator; 51. a first card slot; 52. a support plate; 6. filtering the screen printing plate; 61. a filter plate; 62. a sealing strip; 63. a grip portion; 7. a baffle; 8. a rotating shaft; 9. a poke rod; 91. and a balancing weight.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

a pretreatment device for water quality online monitoring refers to fig. 1 and 2, and comprises a hollow rectangular box body 1, wherein a first partition plate 4 is arranged in the box body 1 along the width direction. The width of the first partition board 4 is smaller than the depth of the box body 1, the lower edge of the first partition board is not contacted with the inner bottom wall of the box body 1, and the upper edge and the two ends of the first partition board extend to be fixedly connected with the inner wall of the box body 1. The first partition 4 forms two communicating chambers in the body of the tank 1. The top plate of one chamber is communicated with a water inlet pipe 2, the side wall of the other chamber is communicated with a water outlet pipe 3, and the communication position of the water outlet pipe 3 and the box body 1 is lower than the lower edge of the first partition plate 4. The top plate of the cavity communicated with the water outlet pipe 3 is detachably arranged to form a box cover 11. The inner wall of the box body 1 and the first partition plate 4 are both provided with a limiting block 12, and when the box cover 11 is covered, the limiting block 12 can support the box cover 11.

Referring to fig. 2, a second partition plate 5 is arranged between the first partition plate 4 and the side wall of the box body 1 far away from one end communicated with the water outlet pipe 3. The second partition 5 is arranged along the length direction of the box body 1, and the width of the second partition is smaller than that of the first box body 1. The filtering screen plates 6 can be detachably arranged between the second partition plate 5 and the two side plates of the box body 1 in the length direction, and the two filtering screen plates 6 are symmetrically distributed on the two sides of the second partition plate 5. A water flow direction switching mechanism is arranged between the upper edge of the second partition plate 5 and the top plate of the box body 1, and the communication part of the water inlet pipe 2 and the box body 1 is over against the water flow direction switching mechanism so as to switch the water flow direction to enable the water flow to any one of the two filtering screen plates 6.

Referring to fig. 2, a valve 21 is installed on the water inlet pipe 2 to control the water inlet speed; the box cover 11 is provided with a sampling port 111 which can conveniently collect the water sample filtered by the filtering screen 6, thereby effectively reducing the interference of solid suspended impurities in the water body to the water quality detection and greatly improving the accuracy of the detection result.

Referring to fig. 3 and 4, the filtering screen 6 includes a filtering plate 61 and a sealing strip 62 disposed on the periphery of the filtering plate 61, the sealing strip 62 is made of rubber, and the periphery of the sealing strip 62 on the periphery of the filtering plate 61 is connected to form a rectangular frame.

Referring to fig. 4 and 5, the seal strip 62 on the filter plate 61 side is provided with a grip 63 for gripping when attaching and detaching the filter screen 6. The side plates at two sides of the box body 1 in the length direction are provided with strip-shaped slots 14, the second partition plate 5 is provided with a first clamping groove 51, and the first partition plate 4 and the side plate at one end of the box body 1 in the length direction are provided with a second clamping groove 41. When the filtering screen 6 is installed, the filtering screen 6 is inserted from the slot 14, the sealing strip 62 is clamped into the second clamping groove 41, the sealing strip 62 is inserted to the side far away from the holding portion 63 and clamped into the first clamping groove 51, and the filtering screen 6 is to be installed in place. In this embodiment, for better filtering effect, the filtering screen 6 is disposed obliquely, i.e. the first slot 51 is lower than the slot 14.

Referring to fig. 1 and 4, the water flow direction conversion device includes a guide plate 7 and a rotating shaft 8 disposed along the length direction of the box body 1, and the guide plate 7 is located above the rotating shaft 8 and is fixedly connected with the rotating shaft 8. The one end of pivot 8 is rotated and is connected in first baffle 4, and the other end runs through 1 curb plate of box and stretches out, and end-to-end connection has the part of controlling that is used for rotating pivot 8. The two sides of the second partition board 5 are symmetrically provided with support plates 52, and when the control component drives the rotating shaft 8 to drive the guide plate 7 to rotate to the bottom plate to be abutted against the support plate 52 on one side, the water body introduced into the box body 1 through the water inlet pipe 2 flows to one filtering screen plate 6 under the flow guide of the guide plate 7.

Referring to fig. 1 and 4, the manipulation member includes a tap lever 9, a limit plate 13, and a weight block 91. The poke rod 9 is perpendicular to the rotating shaft 8, and the balancing weight 91 is spherical and is arranged at one end of the poke rod 9 far away from the rotating shaft 8. The limiting plate 13 is arranged on a side plate of one side of the box body 1, a strip-shaped groove 131 is formed in the limiting plate 13 along the length direction, and the poke rod 9 penetrates through the strip-shaped groove 131.

Referring to fig. 4, when the toggle rod 9 is pulled to incline the counterweight block 91 to one side of the rotating shaft 8, the rotating shaft 8 drives the guide plate 7 to be in an inclined state, the supporting plate 52 is abutted against the guide plate 7, and the center of the counterweight block 91 is located at one side of the rotating shaft 8, so that the guide plate 7 can be stably in an inclined state without external force. When the filtering screen 6 needs to be replaced, the fluctuating plate is pulled reversely.

The working principle is as follows:

the utility model discloses a be provided with two blocks in box 1 and filter half tone 6, and separate through second baffle 5 between two blocks of filter half tone 6 to cooperation rivers flow direction shifter makes two blocks of filter half tone 6 be used for filtering the preliminary treatment to the water in turn, has reduced interference factors such as solid-state suspension impurity in the collection water sample by a wide margin, has improved the accuracy of water detection data. And, the utility model discloses can alternate use or change in turn and filter half tone 6, not only be difficult for causing the water sample pollution of follow-up collection at the in-process of changing and filtering half tone 6, need not the pause when changing and filter half tone 6 moreover and to water preliminary treatment, can gather high quality water sample in real time, satisfy quality of water on-line monitoring demand.

The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

Claims

1. The utility model provides a preprocessing device is used in online monitoring of quality of water, includes hollow box (1), with inlet tube (2) and outlet pipe (3) of box (1) intercommunication and set up in sample connection (111) that are used for gathering the water sample of box (1) roof, its characterized in that: a first partition plate (4) with the width smaller than the depth of the box body (1) is arranged in the box body (1) along the width direction, and the lower edge of the first partition plate (4) is not contacted with the inner bottom wall of the box body (1); a second partition plate (5) is arranged between the first partition plate (4) and a side plate of the box body (1) with one side parallel to the first partition plate (4), and the second partition plate (5) is arranged along the length direction of the box body (1); a filtering screen (6) used for filtering suspended impurities in a water body is detachably arranged on each of two sides of the second partition plate (5), and a water flow direction switching mechanism is arranged between the upper part of the second partition plate (5) and the top plate of the box body (1); the water inlet pipe (2) is communicated with a top plate of the box body (1), and the communicated part is opposite to the water flow direction conversion mechanism; the communicating position of the water outlet pipe (3) and the box body (1) and the sampling port (111) are both positioned on one side of the first clapboard (4) deviating from the filter screen.

2. The pretreatment device for online monitoring of water quality according to claim 1, characterized in that: filter half tone (6) including the equipartition have filter plate (61) of filtration pore and along sealing strip (62) that filter plate (61) periphery set up, all open on box (1) length direction both sides curb plate and supply to filter half tone (6) male slot (14), second baffle (5) are equipped with towards the side of slot (14) and supply to filter half tone (6) male first draw-in groove (51).

3. The pretreatment device for online monitoring of water quality according to claim 2, characterized in that: and a holding part (63) is arranged on one side of the filtering screen plate (6) far away from the second partition plate (5).

4. The pretreatment device for online monitoring of water quality according to claim 2, characterized in that: second clamping grooves (41) are formed in the first partition plate (4) and the side plate of the box body (1), and the two sides of the filtering screen plate (6) are clamped into the second clamping grooves (41) in the first partition plate (4) and the side plate of the box body (1) respectively.

5. The pretreatment device for online monitoring of water quality according to any one of claims 1 to 4, characterized in that: the water flow direction conversion mechanism comprises a guide plate (7), a rotating shaft (8) arranged along the length direction of the box body (1) and an operation part for operating the rotating shaft (8) to rotate; the rotating shaft (8) is arranged below the guide plate (7) and is fixedly connected with the guide plate (7); one end of the rotating shaft (8) is rotatably connected to the first partition plate (4), and the other end of the rotating shaft penetrates through a side plate of the box body (1) to extend out; the control component is arranged at one end of the rotating shaft (8) extending out of the box body (1).

6. The pretreatment device for online monitoring of water quality according to claim 5, characterized in that: the control component comprises a poke rod (9) perpendicular to the rotating shaft (8), a limiting plate (13) arranged on a side plate of the box body (1), and a balancing weight (91) arranged at one end, far away from the rotating shaft (8), of the poke rod (9); limiting plate (13) are last to open length direction perpendicular to pivot (8) axial bar groove (131), poker rod (9) run through bar groove (131) and set up.

7. The pretreatment device for water quality on-line monitoring according to claim 6, characterized in that: the balancing weight (91) is spherical.

8. The pretreatment device for online monitoring of water quality according to claim 5, characterized in that: and a support plate (52) used for supporting the guide plate (7) when the guide plate (7) rotates to an inclined state is arranged on the second partition plate (5).

9. The pretreatment device for online monitoring of water quality according to claim 1, characterized in that: the box body (1) comprises a detachable box cover (11), and the sampling port (111) is arranged on the box cover (11).

10. The pretreatment device for online monitoring of water quality according to claim 9, characterized in that: the inner side wall of the box body (1) and the first partition plate (4) are respectively provided with a plurality of limiting blocks (12) for placing the box cover (11).