KR101027263B1 - Smc tank having multipurpose automatic measuring instrument of water quality - Google Patents

Abstract

PURPOSE: An automatic water quality measuring machine-attachable SMC tank is provided to ensure excellent water tightness and to easily and accurately measure representative water quality value. CONSTITUTION: An automatic water quality measuring machine-attachable SMC tank comprises: a tank body(10) having a plurality of SMC(sheet molding compound) panels; an integrating sample collection tube(20) which is mounted inside the tank body and has a plurality holes for water inflow; and an automatic water quality meter(30) for measuring quality of inflow water. The tank comprises a circulation water bath(40), circulation pump(50), and circulation line(60).

Description

SMC tank having multipurpose automatic measuring instrument of water quality

The present invention relates to an SMC tank attached to a multi-item automatic water quality meter, and more particularly, an SMC tank body composed of a sheet molding compound (SMC) unit panel and assembled by bolts, and capable of real-time water quality measurement attached to the body. The present invention relates to an SMC tank having a multi-item water quality measuring instrument, an integrated sample collection pipe for collecting a sample installed inside the main body, a circulation tank for circulating the discharge of the measured sample, and a circulation pump.

In general, the water tank for storing a large amount of water is mostly made of a concrete structure, is usually provided as a single facility or installed as a water supply facility in the basement of the building. The water tank forms an exterior with concrete walls made of concrete, and the space between each side and the bottom surface of the concrete wall forms a water receiving space of a predetermined size. This water tank has a structure in which the inner surface of the concrete wall is in direct contact with the water contained in the water receiving space.In the case of concrete, the water resistance and corrosion resistance are weak, so that the water tank may be easily eroded and corroded and deteriorated in watertightness when used for a long time. have.

Therefore, in recent years, the water tank provided with most concrete structures has been strengthening watertightness by painting epoxy on the inner surface of the water receiving space to improve water resistance and corrosion resistance. However, this epoxy coating is often peeled off and requires periodic repainting, which incurs excessive maintenance costs for the water tank. If the epoxy coating is left in a damaged state, moss or sludge may form on the inner surface of the water receiving space. As it is attached, a problem occurs that the quality of the water stored in the water receiving space is degraded.

On the other hand, turbidity, residual chlorine, alkalinity, electrical conductivity, and water temperature in the water tank for water quality management of the water tank during the processing steps of the tap water system, that is, raw water intake, tapping well, flocculation, mixing, sedimentation, filtration, purification, and distribution water. Measure the water quality. At present, water quality measurement is measured after sampling by designating a number of measuring points, and it is used as the input value of water quality management or water quality control system by averaging the measured values from several points. The method of making multiple points of water quality not only requires a large number of meters, but also presents a problem that the integrated sample collector is complex and difficult to manage. It is also recommended that water meters be installed within 10 feet of the sampling point to ensure accurate water quality measurements.

In the current water supply, raw water is taken from rivers or lakes and sent to the water wells, and PAC (Poly Aluminum Chloride) is introduced from the water wells and sent to the mixed flocculation tank. Raw water after mixing and flocculation is sent back to the settling basin. Sedimentation of the suspended solids in the sedimentation basin after the process of sedimentation and filtration in the filter paper to obtain the water that meets the legal water quality standards. In addition, the water filtered in the filter paper is collected in the purified water and the water stored in the purified water is sent to the water tank with a water pump, the general water supply system. The measurement of water quality management factors in water tanks is important for water quality management, chemical input, and control.The water quality measurement values should be the average value of the water quality, that is, the representative value to determine the appropriate chemical input amount, and it is easy to control each chemical input system. Do. On the contrary, if the measured water quality values do not have a representative value, an excessive amount of chemicals may be injected, and the resulting disinfection by-products may be harmful to the human body, so an appropriate water quality value should be found.

Water quality measurement in water tanks is very important for water quality control and chemical dosing system control. Therefore, the representative values of water quality such as turbidity, residual chlorine, alkalinity, electrical conductivity and water temperature in the water tank are very important for the appropriate amount of chemical input. In the prior art, a plurality of measurement points were sampled and measured for turbidity measurement or other residual chlorine in a water tank of a water supply system, and a representative value of water in a water tank was obtained by averaging each measured value. This method requires a number of water quality meters because the water quality is measured by collecting water at a number of points, and the system is complicated because there are many pipelines for water collection and the water collected to the meter must be pumped. Therefore, in order to solve the above problems, it is necessary to easily and accurately measure the water quality representative value in the water tank.

A method for obtaining an average water quality (residual chlorine concentration, turbidity, etc.) value in a conventional water tank will be described. In general, it is common to measure water quality after sampling at the inlet side of the water tank or a plurality of locations in the water tank, and after sampling for a predetermined time, sampling at the vicinity of the discharge side of the water tank. The initial water quality measurement at the inlet side is used to monitor the adequacy of the water quality, to manage the water quality measurement in the water tank, or to collect water quality data near the discharge side of the water tank to determine whether additional chemicals are added. Therefore, in order to determine the appropriate amount of drug input by the above-described method, feedback of the water quality data of various stages should be made. That is, the amount of chemical input is determined by using the water quality value at the water tank inlet side as a feedback element of the control system. The water quality in the water tank is then used again as a feedback element in the chemical dosing system. If this method is not sufficient, proper water quality can be managed by sampling the water again near the discharge side of the water tank to measure the water quality value and adding the water quality value as a feedback element to control the chemical input system. This conventional method is a multi-step feedback to the chemical input system is a lot of load on the system, and there is a problem that the number of water quality measurement points for the appropriate amount of chemical input.

An object of the present invention is an SMC tank equipped with a multi-item water quality automatic measuring instrument that can be constructed economically while having excellent water tightness and sufficient mechanical strength required as a water tank, and can easily and accurately measure the representative value of water quality in the tank. To provide.

The present invention to achieve the above object, a body consisting of a plurality of SMC (Sheet Molding Compound) panel; An integrated sample collection tube installed inside the main body and having a plurality of holes into which water received in the main body flows, and having a predetermined inclination θ; And a multi-item water quality automatic instrument attached SMC tank including a multi-item water quality automatic instrument for measuring the water quality of the water introduced into the integrated sample collection tube.

Preferably, the SMC tank according to the present invention further includes a circulation tank, a circulation pump, and a circulation line for returning and circulating the water discharged from the multi-item automatic water meter.

In the present invention, it is preferable to have a reinforcing structure composed of a reinforcing bracket and a reinforcing bar on the inside and / or outside of the SMC panel.

In the present invention, the multi-item water quality automatic measuring instrument can measure hydrogen ion concentration, redox potential, dissolved oxygen, activated sludge concentration, suspended solids concentration, turbidity, residual chlorine, conductivity and temperature, and the like. Can be installed.

In the present invention, the integrated sample collection tube may be made of a circular or elliptical tube, the hole of the integrated sample collection tube is configured to be out of a predetermined angle and the direction in which water flows, or the outer portion is preferably configured to be narrow in the inner portion. In addition, a plate spiral may be formed in a part of the integrated sample collection tube.

In the present invention, the integrated sample collection pipe is composed of a main pipe and a branch pipe, the main pipe and the branch pipe may be composed of two or more stages. In addition, the main pipe may have a slope θ in the horizontal direction, and the branch pipe may have a slope β in the horizontal direction and a slope α in the vertical direction. In addition, a solenoid valve may be installed in the branch pipe.

SMC tank of the present invention is made of SMC panel excellent water tightness and can be economically constructed while having sufficient mechanical strength required as a water tank, and equipped with a representative water quality measurement system to facilitate the representative of the water quality in the water tank You can measure accurately.

It is important to obtain an average value for the overall water quality of the water tank as in the present invention. PAC (a type of flocculant) or chlorine can be determined by the chemical dosing system using average water quality values such as turbidity and residual chlorine, so that the most appropriate chemical dose can be added, thus minimizing disinfection by-products. In addition, since the system configuration for obtaining the average water quality value such as turbidity and residual chlorine can be easily configured, there is also an advantage that the required cost is low.

1 is a perspective view of an SMC tank according to the present invention.
2 is a front view of the SMC tank according to the present invention.
3 is a cross-sectional view of the SMC tank according to the present invention.
4 is a left side, front and right side view of the multi-item water quality meter according to the present invention.
5 is a front view and a cross-sectional view of an attachment panel for installing a multi-item water quality meter according to the present invention.
6 is a front view and a side view showing a reinforcing structure of the SMC panel according to the present invention.
7 is a front view and a side view of a front mounting panel of the mounting panel according to the present invention.
8 is a front view and a side view of a side attachment panel of the attachment panel according to the present invention.
9 is a perspective view of a first embodiment of an integrated sample collection tube according to the present invention.
10 is a perspective view of a round and elliptical integrated sample collection tube according to the present invention.
11 is a cross-sectional view of a circular integrated sample collection tube and three holes according to the present invention.
12 is a cross-sectional view of an elliptical integrated sample collection tube and three holes according to the present invention.
13 is a perspective view of a second embodiment of an integrated sample collection tube according to the present invention.
14 is a perspective view of a third embodiment of an integrated sample collection tube according to the present invention.
15 is a perspective view of a fourth embodiment of an integrated sample collection tube according to the present invention.

The present invention relates to an SMC tank having a system for finding a representative water quality value in a water tank essential for water quality management such as turbidity and residual chlorine. When the representative water quality in the water tank according to the present invention is obtained by feeding back the water quality representative value in the chemical input system once, it is possible to determine the appropriate amount of chemical input, thereby simplifying the system, and preventing the overload and overdose of the chemical, Disinfection by-products from overdose of the drug can also be reduced. Hereinafter, an SMC tank having a system for obtaining representative water quality values according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 are respectively a perspective view, a front view and a cross-sectional view of the SMC tank 1 according to the present invention, the SMC tank 1 is a main body 10, the integrated sample collection pipe 20, a multi-item water quality measuring instrument ( 30), the circulation water tank 40, the circulation pump 50 and the circulation line 60 and the like.

As shown in FIG. 2, the main body 10 includes a plurality of sheet molding compound (SMC) panels 11, and includes a reinforcement part 12 and a flange 13. SMC panel 11 is impregnated with a reinforcing material, filler, mold release agent, pigment, catalyst, and the like in a liquid unsaturated polyester resin, and then chemically increased in viscosity and press-molded by a press. This is excellent and basically guarantees perfect watertightness. Therefore, in the case of the water tank composed of the SMC panel 11, even if used for a long time does not corrode the inner surface in contact with water, it is guaranteed a perfect watertightness at a low cost investment. In addition, since the SMC panel 11 completely blocks the light and has an effect of suppressing the generation of bacteria or growth of bacteria in the water receiving space, the water receiving space surrounded by the SMC panel 11 is more sensitive to the water contained therein. It can be stored hygienically for a long time. In the drawing, the SMC panel 11 is provided as a panel having a square shape, but the SMC panel 11 can be transformed into various shapes such as a rectangle or a triangle.

SMC tank is composed of each unit panel (floor, wall, ceiling), which is pressurized and molded by SMC (Sheet Molding Compound) raw material, which is a thermosetting composite material, by a mold, and the tank body is used inside and outside. The junction is a tank assembled with bolts by inserting a special sealant. The water tank is a water tank that stores water at room temperature as a product with sufficient conditions of hygiene, watertightness, and durability, which are basic functions that a water tank should have.

In the design of the SMC water tank, the tank capacity is calculated according to the first effective capacity. The capacity of the tank is applied so that the effective capacity can be within 80 to 85% of the tank capacity. Apply in consideration of the part that becomes dead space. Second, to maintain the legal separation distance from the wall of the reservoir chamber, 60 cm from the floor and side, 100 cm from the ceiling surface, the side reference is the side beam and the ceiling surface also maintain the separation distance based on the fabric information. Third, base pad is designed, the direction of the base pad and the direction of the middle partition is always designed to match, and the height of the pad is designed to the height of the bottom surface except the base frame. Fourth, in the design of the pillar in the reservoir chamber, if there is a pillar in the reservoir chamber, it is designed to wrap the pillar, it is easy to ensure a smooth and effective maintenance of the effective capacity.

As a characteristic of SMC water tank, firstly, hygiene, SMC water tank completely blocks external light to prevent the growth of microorganisms, and internal reinforcement is used as a non-corrosive material to prevent rust caused by chlorine gas. Easy to use hygienically Secondly, as airtightness, SMC water tank maintains the best airtightness with no shrinkage expansion and material change due to heat by using sealing tape of Norton of USA. Third, as strength durability, SMC water tank is semi-permanent in design considering horizontal intensity and safety factor, and durability has already been verified by a standard test on performance in Korea (KS F 4811) and overseas (Japan JIS A 4110).

The main components of SMC are resins, low shrinkage agents, hardeners, thickeners, internal mold release agents, fillers, reinforcing agents and diluents. The resin may be a thermosetting resin (Iso Type) such as an unsaturated polyester resin or the like as a panel main component. The low shrinkage agent serves to prevent volume shrinkage during the curing reaction, and may use polystyrene (PS), polyethylene (PE), or the like. The curing agent serves to cure SMC in the mold, and t-butyl perbenzoate may be used. Thickener serves to thicken the SMC to a certain viscosity, MaO, CaO, Mg (OH) ₂ and the like can be used. The internal mold release agent plays a role in releasing the mold and the cured molded product, and zinc stearate may be used. The filler is used for the purpose of improving the appearance, physical properties, and the like, and calcium carbonate (CaCO ₃ ) may be used. The reinforcing material is used as the SMC reinforcing material, glass roving and the like can be used. The diluent serves to adjust the viscosity during formulation preparation, and may use styrene monomer (SM) or the like. SMC materials do not contain any substances that are designated as prohibited or restricted substances in Korea and overseas.

The integrated sample collection tube 20 is installed inside the tank body 10 and has a plurality of holes 23 into which water contained in the tank body 10 flows and has a constant inclination θ. SMC tank by installing one or two diagonally integrated sample collection pipe 20 in the SMC tank 1, and forming a plurality of holes 23 in one side of the diagonally integrated sample collection pipe 20, Water at the top, middle, and bottom of (1) may be allowed to flow into the integrated sample collection tube (20). The water flowing into the integrated sample collection tube 20 is mixed while rotating by the plate spiral 24 in the integrated sample collection tube 20, the average value of the overall water quality of the SMC tank 1 by measuring the water quality of the mixed water mixed Can be derived. Detailed description of the integrated sample collection tube 20 will be described later.

The multi-item water quality automatic measuring device 30 is connected to the integrated sample collection pipe 20 and measures the water quality of water introduced into the integrated sample collection pipe 20 in real time. Detailed description of the multi-item water quality meter 30 will be described later.

The circulation water tank 40, the circulation pump 50, and the circulation line 60 convey the water discharged from the multi-item water quality meter 30 to the main body 10 and circulate it. The circulation water tank 40 is connected to the multi-item automatic water meter 30 through the circulation line 60, the circulation pump 50 is connected to the circulation water tank 40 through the circulation line 60, circulation Line 60 begins at the multi-item water quality meter 30 and extends through the circulation tank 40 and the circulation pump 50 to the top of the body 10.

When the circulation pump 50 is operated, water received in the main body 10 through the plurality of holes 23 provided in the integrated sample collection pipe 20 flows into the integrated sample collection pipe 20, and the introduced water Is introduced into the multi-item automatic water meter 30, and representative values of various types of water are measured, and the water discharged from the multi-item water quality automatic meter 30 is used for the circulation water tank 40, the circulation pump 50, and the circulation line 60. Is returned to the main body 10 again, and this process is repeated.

3 is a cross-sectional view of the SMC tank according to the present invention, the multi-item automatic water meter 30 is installed in the attachment panel 70, the attachment panel 70 is installed in a state inward from one side of the main body 10. do.

4 is a left side view, front view, and right side view of the multi-item water quality meter 30 used in the SMC tank 1 according to the present invention, the multi-item water quality meter 30 measures various representative values of water quality To this end, a multi indicator 31, a conductivity sensor 32, a pH sensor 33, a cylindrical water tank 34, a turbidimeter sensor 35, a residual chlorine sensor 36 and the like are provided.

Measurement items of the multi-item automatic water meter (30) include hydrogen ion concentration (pH), oxidation reduction potential (ORP), dissolved oxygen (DO), suspended solids (SS) concentration, Mixed Liquor Suspended Solid (MLSS) concentration, Turbidity, Residual Chlorine, Conductivity and Temperature. Other items can be measured.

As the multi-item water quality measuring instrument 30, for example, Nanochem's Nanochem Multi Analyzer can be used. This instrument can measure and control five of the above mentioned items and temperature at the same time. It can be applied to the whole process and at the same time, it can be applied to the conditions of the sample condition with automatic compensation based on temperature, atmospheric pressure and salinity measurement. Minimize the impact from change, and the menu and operation function are designed to be operated easily in consideration of the user's operating characteristics. Various self-diagnosis functions, output signals, and alarm functions are employed to communicate, control, save data, It is designed to check the meter, and the built-in program has menu functions such as current output for control, electrode cleaning cycle program, and also a program to use single or multiple cleaning devices depending on the applied sensor. Suitable for various environments such as wiper cleaning, air / water jet cleaning, ultrasonic cleaning and built-in ultrasonic cleaning It is equipped with a cleaning device that can be used.

In the Nanochem Multi Analyzer, the multi indicator 31 consists of a backlit graphical LCD display which simultaneously displays the measured value and the temperature. The measurement range of the conductivity meter sensor 32 is 0 to 2000 mS / cm, and the accuracy and reproducibility are within ± 1%. The measurement range of the pH sensor 33 is 0-14 pH, the resolution is 0.01 pH, and the precision and reproducibility are ± 0.01 pH. The turbidimeter sensor 35 has a measurement range of 0 to 100 NTU, a 90 degree transmission scattering method (continuous), precision of ± 2 to ± 5%, and reproducibility of ± 3% or less. ORP has a measurement range of ± 700 to ± 5000 mV, resolution of 1 mV, and accuracy and reproducibility of ± 1 mV. The measurement range of DO is 0 to 60 mg / L, the resolution is 1 ppb to 0.01 mg / L, and the accuracy and reproducibility are ± 0.5%. The measurement range of SS / MLSS is 0 to 100000 mg / L, the resolution is 0.01 to 10 mg / L, and the accuracy and reproducibility are ± 1%. The measurement range of the residual chlorine sensor 36 is 0 to 10 mg / L, and accuracy and reproducibility are within ± 2%. The measurement range of temperature is -40 to 100 ° C, the resolution is 0.1 ° C, and the accuracy and reproducibility are ± 0.5%.

5 is a front view and a cross-sectional view of the attachment panel 70 for installing the multi-item water quality meter 30 used in the SMC tank 1 according to the present invention, the multi-item water quality meter 30 is a main body ( It is installed on the attachment panel 70 mounted on 10).

6 is a front view and a side view showing the reinforcement structure of the SMC panel 11 according to the present invention, the reinforcement bracket 80 and the reinforcement bar (81, 82) is provided on the inside and / or outside of the SMC panel 11 It can be installed to structurally reinforce the SMC panel 11. The reinforcement bracket 80 is fixed with the rubber head bolts 86. Two reinforcement bars, that is, a left reinforcement bar 81 and a right reinforcement bar 82, are installed, and these two reinforcement bars 81 and 82 are fixed by bolts 83 and nuts 84, and bolts 83 Inside the washer 85 is inserted.

7 is a front view and a side view of the front attachment panel 71 of the attachment panel 70 for installing the multi-item water quality meter 30 according to the present invention, Figure 8 is a front view of the side attachment panel 73 And a side view. The front mounting panel 71 and the side mounting panel 73 are fixed with rubber head bolts 72 and 74 made of hot dip galvanizing.

9 is a perspective view of a first embodiment of the integrated sample collection tube 20 according to the present invention, in which the integrated sample collection tube 20 is installed with a constant slope to obtain a representative water quality value in the SMC tank 1. The state is shown.

The integrated sample collection pipe 20 is one main pipe 21 having a constant inclination (θ), a plurality of branch pipes 22, the main pipe 21 and / or connected perpendicularly to the main pipe 21, and / Or a plurality of holes 23 formed in the branch pipe 22 and a plate spiral 24 formed in a part of the main pipe 21 to facilitate mixing of water.

The inclination θ of the main pipe 21 and the branch pipe 22 may have a slope in the horizontal direction and / or the vertical direction. The inclination and the number of stages of the integrated sample collection pipe 20 in the SMC tank 1 can be adjusted according to the size and site situation of the SMC tank 1. The integrated sample collection tube 20 may be fixed to one side of the main body 10 with a bracket or the like so as not to be shaken. In addition, by installing a discharge valve in the outer conduit of the integrated sample collection pipe 20, the integrated sample collection pipe 20 can be opened or closed as necessary, such as to control the flow of water, or when water is collected or when the water tank is cleaned. Can be.

The integrated sample collection pipe 20 having a predetermined slope as described above constitutes a plurality of holes 23 on one side, that is, the side into which water enters, so that the water of the upper, middle, and lower portions of the SMC tank 1 is integrated. It is configured to be collected into the collection pipe (20). The water collected by the suction force of the circulation pump 50 is mixed again by the plate spiral 24 and sent to the multi-item automatic water meter 30 to measure the water quality. It can be obtained as a representative water quality value. By using the measured water quality as a control element for determining the dosage of the drug, it is possible to easily determine the appropriate amount of drug input.

10 is a perspective view of the circular and elliptical integrated sample collection tube (20a, 20b) according to the present invention, the integrated sample collection tube 20 is made of a circular integrated sample collection tube (20a), as shown in the upper view of FIG. As shown in the lower view of Figure 10 may be composed of an elliptical integrated sample collection tube (20b).

FIG. 11 is a cross-sectional view of the circular integrated sample collection tube 20a and the three holes 23a, 23b, and 23c according to the present invention, and the hole 23a of the circular integrated sample collection tube 20a as shown in the upper left view of FIG. Can be configured parallel to the direction in which water flows. However, if the hole 23a is configured in this manner, foreign matters such as moss accumulate in the hole 23a as time passes, so that the hole 23b is deviated at a predetermined angle from the direction in which water flows, as shown in the upper right view of FIG. 11, the outer portion is wider and the inner portion is narrower, as in the hole 23c illustrated in the lower view of FIG. 11, to prevent foreign matter such as moss from being caught in the hole 23c.

12 is a cross-sectional view of the elliptical integrated sample collection tube 20b and three holes 23a, 23b, and 23c according to the present invention. As shown in the upper left view of FIG. Can be configured. As shown in the upper right view of FIG. 12, the hole 23b is configured to be out of a predetermined angle with the direction in which water flows, or as shown in the lower view of FIG. 12, the outer portion of the hole 23c is wider and the inner portion thereof is narrower. Water can be easily introduced into the 20b and moss is not caught in the holes 23b and 23c.

13 is a perspective view of a second embodiment of the integrated sample collection tube 20 according to the present invention, in which the integrated sample collection tube 20 is configured in two stages. As shown in Figure 13, the integrated sample collection pipe 20 may be installed in two or more than three stages. When a new stage is added to the integrated sample collection pipe 20, two or more main pipes 21 and / or branch pipes 22 are connected to each other by using a coupler 25 composed of a thread and a coupling ring. Just do it. It is also possible to replace the main pipe 21 and / or the branch pipe 22 with different lengths.

14 is a perspective view of the third embodiment of the integrated sample collection tube 20 according to the present invention, in which the main tube 21 and the branch tube 22 both have an inclination. In this embodiment, the integrated sample collection tube 20 simultaneously has a horizontal inclination and a vertical inclination, where θ represents a horizontal inclination of the main tube 21, and α represents a vertical direction of the branch pipe 22. Indicates the slope of, and β indicates the slope of the branch pipe 22 in the horizontal direction. Thus, by having the integrated sample collection pipe 20 at the same time in the horizontal and vertical inclination, it is possible to more easily withdraw the water at different positions of the SMC tank (1).

15 is a perspective view of a fourth embodiment of the integrated sample collection tube 20 according to the present invention, in which the branch pipe 22 is provided with a solenoid valve 26. When the solenoid valve 26 is installed at each branch pipe 22 of the integrated sample collection pipe 20 and the solenoid valve 26 is remotely controlled, the water quality of the water flowing into the branch pipe 22 sequentially is delayed with a time delay. Each can be measured. Therefore, if the arithmetic average of the water quality measurement value of the water which flowed into the branch pipe | tube 22 can be obtained the water quality representative value of the whole SMC tank 1 easily.

1: SMC tank 10: body
11: SMC panel 12: reinforcement
13: flange 20: integrated sample collection tube
21: Main Building 22: Branch Building
23: Hall 24: Plate Spiral
25: coupling port 26: solenoid valve
30: multi-item water meter 31: multi indicator
32: conductivity sensor 33: pH sensor
34: cylindrical bath 35: turbidimeter sensor
36: residual chlorine sensor 40: circulation tank
50: circulation pump 60: circulation line
70: attachment panel 71: front attachment panel
72, 74, 86: Rubber head bolt 73: Side mounting panel
80: reinforcing bracket 81, 82: reinforcing bar
83: bolt 84: nut
85: washer

Claims (13)

A main body consisting of a plurality of sheet molding compound (SMC) panels;
An integrated sample collection tube installed inside the main body and having a plurality of holes into which water received in the main body flows, and having a predetermined inclination θ; And
An SMC tank with a multi-item water quality meter, which is connected to the integrated sample collection pipe and includes a multi-item water quality meter for measuring the quality of water introduced into the integrated sample collection pipe. The SMC tank according to claim 1, further comprising a circulation tank, a circulation pump, and a circulation line for returning and circulating water discharged from the multi-item water quality meter to the main body. The SMC tank according to claim 1, wherein a reinforcing bracket and a reinforcing bar are installed on the SMC panel. The multi-item water quality automatic measuring device according to claim 1, wherein the multi-item water quality measuring instrument measures hydrogen ion concentration, redox potential, dissolved oxygen, activated sludge concentration, suspended solids concentration, turbidity, residual chlorine, conductivity and temperature. Instrument attached SMC tank. The SMC tank according to claim 1, wherein the multi-item water quality meter is installed on an attachment panel mounted to the main body. The SMC tank according to claim 1, wherein the integrated sample collection tube comprises a round or oval tube. The SMC tank according to claim 1, wherein the holes of the integrated sample collection pipe are configured to be out of a predetermined angle from a direction in which water flows. According to claim 1, wherein the hole of the integrated sample collection pipe multi-item water meter attached type SMC tank, characterized in that the outer portion is configured to be narrow. The SMC tank according to claim 1, wherein a plate spiral is formed in a part of the integrated sample collection tube. The SMC tank according to claim 1, wherein the integrated sample collection pipe is composed of a main pipe and a branch pipe. 11. The SMC tank according to claim 10, wherein the main pipe and the branch pipe are composed of two or more stages. 12. The multi-item water quality meter according to claim 10, wherein the main pipe has a horizontal slope (θ), and the branch pipe has a horizontal slope (β) and a vertical slope (α). SMC tank. 11. The SMC tank according to claim 10, wherein a solenoid valve is installed in the branch pipe.

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