CN111157077A - Special protection device for groundwater level monitor - Google Patents
Special protection device for groundwater level monitor Download PDFInfo
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- CN111157077A CN111157077A CN202010185967.7A CN202010185967A CN111157077A CN 111157077 A CN111157077 A CN 111157077A CN 202010185967 A CN202010185967 A CN 202010185967A CN 111157077 A CN111157077 A CN 111157077A
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- 239000003673 groundwater Substances 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 163
- 239000000523 sample Substances 0.000 claims abstract description 57
- 238000012544 monitoring process Methods 0.000 claims abstract description 56
- 238000001914 filtration Methods 0.000 claims abstract description 40
- 239000004576 sand Substances 0.000 claims abstract description 17
- 239000012535 impurity Substances 0.000 claims abstract description 11
- 238000007667 floating Methods 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 239000012466 permeate Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000010813 municipal solid waste Substances 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
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- 230000002159 abnormal effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
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- 235000019738 Limestone Nutrition 0.000 description 1
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- 230000001174 ascending effect Effects 0.000 description 1
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- 239000001913 cellulose Substances 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
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- 230000000149 penetrating effect Effects 0.000 description 1
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- 238000003908 quality control method Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/0023—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm with a probe suspended by a wire or thread
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
本发明公开了一种地下水水位监测仪专用保护装置，包括透水过滤组件，用于阻挡和过滤水体中的漂浮物、悬浮物；导向保护部，具有用于盛装和保护监测探头的容纳腔和与容纳腔连通的透水排沙孔；以及连接部，用于将透水过滤组件和导向保护部连为一体，还用于将水位监测仪的电缆与监测探头电连接在一起；水体经透水过滤组件过滤后由连接部进入容纳腔，进入容纳腔内的杂质由透水排沙孔排出。本发明优点在于结构简单、巧妙，便于组装，成本低，不仅能够保护监测探头，还具有过滤、配重、导向和排沙作用，使水位监测仪能够适用于埋深含水层、复杂含水层或地下水以及高流动性水体等复杂水体，提高了水位监测仪的适用性、灵活性、耐久性和安全性。
The invention discloses a special protection device for a groundwater water level monitor, comprising a permeable filter assembly for blocking and filtering floating objects and suspended objects in a water body; a guide protection part, which is provided with an accommodating cavity for containing and protecting a monitoring probe and a a water-permeable and sand-removing hole communicated with the accommodating cavity; and a connecting part for connecting the water-permeable filter assembly and the guide protection part into one, and also for electrically connecting the cable of the water level monitor with the monitoring probe; the water body is filtered through the water-permeable filter assembly Afterwards, the connecting part enters the accommodating cavity, and the impurities entering the accommodating cavity are discharged through the water-permeable and sand-discharging holes. The invention has the advantages of simple and ingenious structure, easy assembly and low cost, not only can protect the monitoring probe, but also filter, counterweight, guide and remove sand, so that the water level monitor can be applied to buried deep aquifers, complex aquifers or Complex water bodies such as groundwater and highly mobile water bodies increase the applicability, flexibility, durability and safety of water level monitors.
Description
Technical Field
The invention relates to underground water monitoring, in particular to a special protection device for an underground water level monitor.
Background
As a medium closely related to rock and soil mass, information such as water level, water temperature, conductivity and the like of underground water often plays an important role in engineering construction decision making. Before engineering construction, various information contained in underground water media needs to be collected, the state of underground water is comprehensively mastered, and then scientific management, pollution control, auxiliary engineering construction scheme design and the like for underground water development and utilization are realized.
The information of underground water is collected by a common water level monitor in various engineering surveys, underground water environment influence evaluation and the like. Along with the rapid development of science and technology, the water level monitor is also more and more intelligent, sensitivity is also more and more high, but monitoring parameter is more and more, also more and more small and exquisite light, portable and transfer. However, because the monitoring probe of the water level monitor is small and light, the water level monitor is only suitable for drilling a shallow aquifer or a clean water body with small fluidity, and the application places are extremely limited, specifically as follows:
(1) and for high-fluidity water bodies: because the flow velocity of the high-pressure water body is high, the monitoring probe is difficult to put into a drill hole due to small and exquisite structure and light weight, and meanwhile, the probe is easy to rub or collide with the hole wall due to the disturbance of the water body, so that the probe is damaged;
(2) for complex motor-pumped wells and civil wells: because a large number of water pipes, cables and the like are usually arranged in advance in the motor-pumped well or the civil well, when the monitoring probe is placed down, the traction cable is easy to be wound together with the existing water pipes or the existing cables, and the placing difficulty of the probe is high;
(3) and for the underground buried deep aquifer in the mountainous area: in water conservancy and hydropower engineering, underground aquifers in mountainous areas are often buried deeply and are influenced by factors such as poor integrity of rock masses and inclined drilling holes, and a probe of a water level monitor is difficult to apply to a target depth due to light weight and large friction between the probe and the hole wall;
(4) for complex aquifers or groundwater: because the monitoring head of the water level monitor is very light, the water level monitor is difficult to discharge when being used in complex aquifers such as high-sand-content water bodies, complex aquifers with floating or suspended matters (such as sand gravel aquifers, limestone aquifers with corrosion phenomena and high-density polluted aquifers) and the like, and sundries (such as sand, suspended matters and the like) in the water bodies can easily wrap the monitoring probe, so that the reading is interfered, even abnormal reading is caused, and the monitoring probe is easy to damage.
In order to meet the monitoring requirements of different water bodies, people often perform simple counter weight on the monitoring probe when monitoring complex water body information, namely, the weight of the probe is increased so as to facilitate application. At present, no protection device matched with the monitoring probe exists in the market, and generally, a steel pipe is cut on site and then is fixed with the monitoring probe by a steel wire clamp. Although the weight of the probe is increased by adopting the steel pipe for weighting, the following problems exist when the probe is used: firstly, the water quality control device only has a counterweight function, cannot effectively isolate small-particle sand in a water body, and cannot solve the problem that suspended matters interfere with reading; secondly, the steel pipe still easily twines with existing raceway, existing cable or debris in the complicated water body in the application process, and the release degree of difficulty still is very big, leads to the probe to damage even. Therefore, how to design a matched protection device which has low release difficulty, can protect the monitoring probe, and has the functions of balancing weight and preventing sundry interference is a goal which is always pursued by technical personnel in the industry.
Disclosure of Invention
The invention aims to provide a special protection device for an underground water level monitor, which not only has a protection function, but also has a counterweight function, a guiding function and a filtering function, so that the interference of external factors is effectively reduced, and the application range, flexibility, durability and safety of the water level monitor are further effectively improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a special protection device for a groundwater level monitor, which comprises
The water permeable filtering component is used for blocking and filtering floating objects and suspended matters in the water body;
the guide protection part is provided with an accommodating cavity for accommodating and protecting a monitoring probe of the water level monitor and a water-permeable sand discharge hole communicated with the accommodating cavity; and
the connecting part is used for connecting the permeable filtering component and the guide protection part into a whole and is also used for electrically connecting a cable of the water level monitor with the monitoring probe;
wherein, the water is filtered through the filtering component that permeates water and is back got into by connecting portion and holds the chamber, get into and hold the impurity of intracavity by the sediment outflow hole of permeating water discharges.
The top of the water permeable filtering component is provided with a counterweight part for balancing the monitoring probe.
The counterweight part is a counterweight column with a cable embedding hole, and a guide end cap used for protecting the cable is arranged at the top of the counterweight column.
The filtering component permeates water including the interior filter core that is arranged in the flower pipe of intaking that is arranged in blockking floater in the water and is arranged in filtering the water suspended solid, the flower pipe of intaking is in the same place with interior filter core suit, and external water carries out the secondary filter by the filtration pore entering interior filter core of the flower pipe of intaking.
The inner filter element is a trash rack with a columnar structure, the middle part of the inner filter element is provided with a cable embedding center hole for the cable to smoothly pass through, the side wall of the inner filter element is provided with a vertical filter hole and a horizontal filter hole communicated with the vertical filter hole, and the horizontal filter hole is communicated with the filter hole of the water inlet perforated pipe.
The connecting part comprises a connecting sleeve and a cable joint which are sleeved together, a cable of the water level monitor sequentially penetrates through the counterweight part, the permeable filtering component and the top of the cable joint from top to bottom to be connected into a whole, and the bottom of the cable joint is electrically connected with a monitoring probe of the water level monitor.
The upper surface of adapter sleeve indent downwards forms the water catch bowl that is round platform shape structure, certainly on the lateral wall of adapter sleeve the groove face of water catch bowl has seted up downwards and is used for the intercommunication the filtration subassembly that permeates water with hold the hole of permeating water in chamber.
The guide protection part comprises a columnar protection head arranged at the lower part of the connecting part and a conical guide head which is inwards retracted downwards from the columnar protection head, the accommodating cavity is formed in the columnar protection head, and the monitoring probe is hung in the accommodating cavity.
The bottom surface of the cable joint is provided with a threaded hole, and the top of the monitoring probe is in threaded connection with the threaded hole.
The accommodating cavity is a tapered hole formed in the columnar protection head, the water-permeable sand discharge hole is formed in the side wall of the columnar protection head, and the water-permeable sand discharge hole extends downwards from the hole wall of the tapered hole in an inclined mode.
The invention has the advantages of simple and ingenious structure, convenient assembly and low cost, can protect the monitoring probe, and has the functions of filtering, balancing weight, guiding and sand discharging, so that the water level monitor can be suitable for complex water bodies such as a buried aquifer, a complex aquifer or underground water, a high-fluidity water body and the like, and the applicability, flexibility, durability and safety of the water level monitor are improved. The method has the following specific advantages:
1) the monitoring probe is packaged in the space defined by the columnar protection head and the connecting part, so that the friction between the probe and the hole wall is reduced, the monitoring probe is effectively protected, and the safety of the water level monitor is improved.
2) The water inlet perforated pipe can carry out coarse filtration on a water body, effectively blocks floating objects in the water body, and the inner filter element can carry out secondary filtration on the water body, so that interference objects in the water body are effectively prevented from winding or interfering the monitoring probe, a stable working environment of the monitoring probe is ensured, and the accuracy and the reliability of data acquisition are guaranteed; and connecting portion and counter weight post, adapter sleeve threaded connection, the dismouting is simple, is convenient for change inner filter core.
3) The counterweight column and the columnar protection head can balance the monitoring probe, and the guide end cap at the top of the counterweight column and the conical guide head at the bottom of the columnar protection head have guide functions, so that the problem that the monitor is hung and stumbled by foreign matters in the descending or ascending process of a complex working condition can be effectively solved.
4) The water-permeable sand discharging holes in the side wall of the columnar protection head extend downwards from the wall of the conical hole, and the unique structure of the guide protection part ensures that the guide protection part has the advantage of being suitable for discharging and unsuitable for feeding, so that fine sand or other impurities entering the conical hole from the water-permeable filtering component through the water-permeable holes can be smoothly discharged, suspended matters in a water body can be effectively prevented from entering the conical hole, and the clogging risk of the conical hole is further reduced; even the filter component that permeates water appears silting up in long-time the use simultaneously, the impurity that holds the intracavity also can discharge through the row's of permeating water sand hole of lower part, guarantees the normal clear of monitoring work.
5) The upper surface of the connecting sleeve is concave inwards to form a water collecting tank in a round table structure, so that water filtered by the inner filter element smoothly enters the lower conical hole through the water permeable hole, the water body flows more smoothly, and the problem that the water body is not circulated or circulated smoothly due to the fact that the air in the water is not circulated smoothly to form vacuum can be effectively avoided; the cable joint and the cable of the water level monitor adopt an integrated structure, have higher strength compared with the traditional plugging or clamping, can increase larger tension to the cable under the condition that the whole protection device is clamped or caught, improve the safety capability of the protection device under the complicated working condition, and have high use safety.
6) The parts of the invention are connected in an assembling way, the parts can be produced in a standardized batch by adopting a mould, the guide end cap and the guide protection part adopt a cone-shaped structural design, and meanwhile, the cable and the protection device adopt an internal connection type structure, so that the outer surface of the protection device is smooth, and the problems of hanging, tripping and the like caused by the traditional external connection mode are effectively avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged schematic view of the connecting portion and the guide protecting portion in fig. 1.
Fig. 3 is an enlarged view of the water permeable filter assembly of fig. 1.
FIG. 4 is an enlarged top view of the water permeable filter assembly of FIG. 1.
Fig. 5 is an enlarged plan view of the connection portion in fig. 1.
Fig. 6 is an exploded view of the present invention.
Detailed Description
The cable of the water level monitor is generally a composite cable which can transmit data and has strong bearing capacity. The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
As shown in FIGS. 1 to 6, the protection device for groundwater level monitor of the present invention comprises
The water permeable filtering component is used for blocking and filtering floating objects and suspended matters in the water body;
the guide protection part is provided with an accommodating cavity 1.1 for accommodating and protecting a monitoring probe A of the water level monitor and a permeable sand discharge hole 1.2 communicated with the accommodating cavity 1.1, so that impurities entering the accommodating cavity 1.1 are discharged through the permeable sand discharge hole 1.2, the monitoring probe is prevented from being interfered by impurities, and a stable monitoring environment is provided for the monitoring probe; and
the connecting part is used for connecting the permeable filtering component and the guide protection part into a whole and is also used for electrically connecting a cable B of the water level monitor with the monitoring probe A;
wherein, the water is filtered the back by the filtering component that permeates water and is got into by connecting portion and hold chamber 1.1, holds chamber 1.1 and arranges husky hole 1.2 and outside water intercommunication through permeating water, if appear getting into and holding the interior fine sand or other impurity of chamber 1.1, all can arrange husky hole 1.2 discharges by permeating water.
As shown in fig. 1 and 6, the counterweight part is a counterweight column 2 (preferably, a cylindrical structure) with a cable embedding hole, a guide end cap 3 in a conical structure is screwed on a thread head at the top of the counterweight column 2, and the guide end cap not only has a sealing function, but also has a guiding function, and can effectively avoid being hung and caught by equipment such as a drilling hole, a cable, a rope, a water pipeline, a flange plate and the like in a well when the monitoring probe is released and recovered.
As shown in fig. 1, 3-4 and 6, the water-permeable filtering assembly comprises a water inlet flower pipe 4.1 for blocking floating objects in the water body and an inner filter element 4.2 for adsorbing and filtering suspended matters in the water body, the water inlet flower pipe 4.1 and the inner filter element 4.2 are sleeved together, a filtering hole of the water inlet flower pipe 4.1 is positioned in the middle of the water inlet flower pipe (the filtering hole can also be arranged on the whole section of the water inlet flower pipe 4.1), the upper part and the lower part of the water inlet flower pipe 4.1 are respectively provided with internal threads, and the lower part of the counterweight column 2 is screwed with the internal threads on the upper part of the water inlet flower pipe 4.1;
the inner filter element 4.2 is a filtering and dirt-blocking grid with a cylindrical structure, the middle part of the inner filter element is provided with a cable embedding center hole 4.3 for a cable to smoothly pass through, the side wall of the inner filter element is provided with a vertical filter hole and a horizontal filter hole communicated with the vertical filter hole (the vertical filter hole and the horizontal filter hole are circular in cross section and can also be in other shapes such as a pentagram and the like), the horizontal filter hole is communicated with the filter hole of the water inlet flower pipe 4.1, and accessories with better adsorption performance, such as cellulose, non-woven fabrics, cotton yarns or glass filaments and the like, are preset or filled in the vertical filter hole and the horizontal filter hole and are used for filtering or adsorbing impurities in a water body. During monitoring, the water inlet perforated pipe 4.1 and the inner filter element 4.2 can carry out secondary filtration on the water body, and the interference of suspended matters and floating matters in the water body on the monitoring probe is reduced.
As shown in fig. 1 and 2, the connecting portion includes a connecting sleeve 5.1 having an external thread and a cable joint 5.2 screwed in the connecting sleeve 5.1, the upper portion of the connecting sleeve 5.1 is screwed with an internal thread at the lower portion of the water inlet perforated pipe 4.1, the upper surface of the connecting sleeve 5.1 is downwardly concave to form a water collecting tank 5.3 in a truncated cone shape, 10 to 12 water permeable holes 5.4 for communicating the water permeable filtering component with the accommodating cavity 1.1 are formed in the sidewall of the connecting sleeve 5.1 from the surface of the water collecting tank 5.3 (the water permeable holes 5.4 are circumferentially spaced apart from the connecting sleeve 5.1, and may be spaced apart from each other by three or four), the water collecting tank 5.3 can enable the water filtered by the inner filter element 4.2 to smoothly enter the water permeable holes 5.4, which is more favorable for ensuring the circulation of bubbles in the water, and prevents the water from being blocked or blocked in circulation due to the vacuum formed by the water permeable holes 5.; the aperture of the water permeable hole 5.4 is generally not less than 5mm, and the water body filtered by the inner filter element 4.2 can be filtered again;
the bottom of the cable joint 5.2 is provided with a threaded hole, and a cable B of the water level monitor and the cable joint 5.2 are of an integrated structure (of course, other structures can be adopted to fix the cable B and the cable joint together), so that the cable B can bear stronger tension, and the cable is prevented from being separated from the cable joint 5.2 due to the stress of the cable; the top of a monitoring probe A of the water level monitor is screwed in a threaded hole of a cable connector 5.2, namely, the cable B is electrically connected with the monitoring probe A through the cable connector 5.2.
As shown in fig. 2 and fig. 6, the guiding protection part comprises a cylindrical protection head 1.3 (which may be a cylindrical structure or a polygonal column structure, preferably a cylindrical structure) screwed on the external thread of the connecting sleeve 5.1 and a guiding head 1.4 which is inwardly retracted from the bottom of the cylindrical protection head 1.3 and is in a conical structure, so that the guiding protection part not only has a protection function, but also has a guiding function, and can effectively avoid being hung and caught by equipment such as a drilling hole, a cable, a rope, a water pipeline, a flange plate and the like when the monitoring probe is released and recovered;
hold chamber 1.1 for seting up the bell mouth on protecting the head (the bell mouth is conical structure), monitor A hangs in the bell mouth, the row's of permeating water husky hole 1.2 is from the pore wall slope downwardly extending of bell mouth (the row's of permeating water husky hole and the contained angle of horizontal plane are 30 ~ 60 degrees), unique structural design makes it have the advantage that should go out not to advance, it can be smoothly by row's of permeating water husky hole 1.2 discharge under the effect of its dead weight to enter into the impurity that holds chamber 1.1 cavity after inner filter core 4.2 filters, effectively avoid impurity to pile up in the bell mouth and influence monitor's normal work, guarantee its operational environment's stability.
In actual processing, the columnar protection head 1.3 and the guide head 1.4 are of an integrated structure made of stainless steel or alloy materials; the guide end cap 3 and the counterweight column 2 are split structures made of metal materials such as stainless steel or alloy.
The protection device of the invention is simple to assemble and disassemble, and the assembly process of the protection device and the water level monitor is described in detail below by taking the protection device of the invention assembled on a German OTT Ecolol 500/800 type underground water automatic recorder as an example:
firstly, one end (namely the end without the cable joint 5.2) of a cable B sequentially penetrates through a water inlet flower pipe 4.1 from bottom to top and then sequentially penetrates through an inner filter element 4.2, a counterweight column 2 and a guide end cap 3, and the cable joint 5.2 at the other end of the cable B is screwed in a connecting sleeve 5.1 after penetrating out;
secondly, the inner filter element 4.2 penetrates through the water inlet perforated pipe 4.1, then the bottom of the counterweight column 2 is screwed on the upper part of the water inlet perforated pipe 4.1, the cable is drawn to a proper position, the external thread on the upper part of the connecting sleeve 5.1 is screwed with the internal thread on the lower part of the water inlet perforated pipe 4.1, and the assembly of the counterweight part, the permeable filtering component and the connecting part is completed;
thirdly, screwing a monitoring probe A of the water level monitor at the bottom of a cable joint 5.2, screwing a columnar protection head 1.3 on a connecting sleeve 5.1, testing the connection between the monitoring probe A and a cable B through external equipment, and performing the next step if the connection is abnormal; if the connection is not normal, the monitoring probe A is screwed on the cable joint 5.2 again after being pulled down, and the next step is carried out after the test is normal;
fourthly, screwing the guide end cap 3 on the upper part of the counterweight column 2, and fixing the cable B, so that the assembly of the monitoring probe and the protection device can be completed, as shown in fig. 1.
When the device is used, the monitoring probe provided with the protection device is applied to the target water level depth through the application cable, the guide end cap 3 and the guide head 1.4 have a guide function in the application process, the device is prevented from being hung and caught with equipment in a drill hole or a water well, and the monitoring probe is effectively ensured to be applied and recovered smoothly; after the monitoring probe reaches the target water level depth, fixing the upper part of the cable, and monitoring the data of the water body to be developed; during the monitoring, the filtering component that permeates water can be used to block and filter floater and suspended solid in the water, reduces the interference of debris in the water to monitor probe, improves data acquisition's stability and accuracy.
In the description of the present invention, it should be noted that the terms "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Claims (10)
1. The utility model provides a special protection device of groundwater water level monitor which characterized in that: comprises that
The water permeable filtering component is used for blocking and filtering floating objects and suspended matters in the water body;
the guide protection part is provided with an accommodating cavity for accommodating and protecting a monitoring probe of the water level monitor and a water-permeable sand discharge hole communicated with the accommodating cavity; and
the connecting part is used for connecting the permeable filtering component and the guide protection part into a whole and is also used for electrically connecting a cable of the water level monitor with the monitoring probe;
wherein, the water is filtered through the filtering component that permeates water and is back got into by connecting portion and holds the chamber, get into and hold the impurity of intracavity by the sediment outflow hole of permeating water discharges.
2. The special protection device of claim 1, which is characterized in that: the top of the water permeable filtering component is provided with a counterweight part for balancing the monitoring probe.
3. A special protection device for a groundwater level monitor according to claim 2, wherein: the counterweight part is a counterweight column with a cable embedding hole, and a guide end cap used for protecting the cable is arranged at the top of the counterweight column.
4. A special protection device for a groundwater level monitor according to claim 2, wherein: the filtering component permeates water including the interior filter core that is arranged in the flower pipe of intaking that is arranged in blockking floater in the water and is arranged in filtering the water suspended solid, the flower pipe of intaking is in the same place with interior filter core suit, and external water carries out the secondary filter by the filtration pore entering interior filter core of the flower pipe of intaking.
5. A special protection device of a groundwater level monitor according to claim 4, wherein: the inner filter element is a trash rack with a columnar structure, the middle part of the inner filter element is provided with a cable embedding center hole for the cable to smoothly pass through, the side wall of the inner filter element is provided with a vertical filter hole and a horizontal filter hole communicated with the vertical filter hole, and the horizontal filter hole is communicated with the filter hole of the water inlet perforated pipe.
6. A special protection device for a groundwater level monitor according to claim 2, wherein: the connecting part comprises a connecting sleeve and a cable joint which are sleeved together, a cable of the water level monitor sequentially penetrates through the counterweight part, the permeable filtering component and the top of the cable joint from top to bottom to be connected into a whole, and the bottom of the cable joint is electrically connected with a monitoring probe of the water level monitor.
7. A special protection device for a groundwater level monitor according to claim 6, wherein: the upper surface of adapter sleeve indent downwards forms the water catch bowl that is round platform shape structure, certainly on the lateral wall of adapter sleeve water catch bowl groove surface has seted up downwards and is used for the intercommunication the filtration subassembly that permeates water with the hole of permeating water that holds the chamber.
8. A special protection device for a groundwater level monitor according to claim 7, wherein: the guide protection part comprises a columnar protection head arranged at the lower part of the connecting part and a conical guide head which is inwards retracted downwards from the columnar protection head, the accommodating cavity is formed in the columnar protection head, and the monitoring probe is hung in the accommodating cavity.
9. A special protection device of a groundwater level monitor according to claim 8, wherein: the bottom surface of the cable joint is provided with a threaded hole, and the top of the monitoring probe is in threaded connection with the threaded hole.
10. A special protection device of a groundwater level monitor according to claim 8, wherein: the accommodating cavity is a tapered hole formed in the columnar protection head, the water-permeable sand discharge hole is formed in the side wall of the columnar protection head, and the water-permeable sand discharge hole extends downwards from the hole wall of the tapered hole in an inclined mode.
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