Integrated water quality monitoring device

Abstract

The utility model relates to an integrated water quality monitoring device, which comprises a water inlet, a water outlet, a water inlet pipeline and a sampling pipeline, the water inlet pipeline is provided with a regulating valve and a flow meter, the sampling pipeline is provided with two types of sensors, one type is a pressure-resistant sensor connected in series with a sampling main pipeline, and the other type is a pressure-resistant sensor connected in series with the sampling main pipeline. One type is non-pressure sensors mounted in the sampling water tanks, and a plurality of non-pressure sensors and the corresponding sampling water tanks are connected in parallel and then are connected into the sampling main pipeline; and each sensor is connected with an instrument head. According to the utility model, the problems that the sampling flow velocity cannot be accurately controlled and the number of sensors is not easy to expand are solved, the installation space is saved, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality instrument sampling detection technical field, concretely is an integrated water quality monitoring device, can be used for many index water quality monitoring. BACKGROUND

[0002] For the water quality indexes of various water supply pump stations, waterworks, reservoirs and factory production water, according to the state regulation or production requirement, water quality monitoring is needed.Especially for important process nodes, waterworks inlet water, waterworks outlet water and reservoir water quality, multi-parameter simultaneous detection is needed.The main problems of the various sampling detection methods used at present are that the pipeline design is not flexible enough, not easy to expand, water quality is easily contaminated, and overflow or slow flow rate is prone to occur. INVENTION CONTENTS

[0003] The utility model discloses a kind of integrated water quality monitoring devices to overcome the deficiencies of prior art, solve the problems such as not easy to expand sensor quantity, save installation space, reduce maintenance cost.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] An integrated water quality monitoring device includes a water inlet, a water outlet, an inlet pipe and a sampling pipe, an adjusting valve and a flow meter are installed on the inlet pipe, two types of sensors are provided on the sampling pipe, one type is a pressure-resistant sensor connected in series on the sampling main pipe, and the other type is a non-pressure sensor installed in a sampling water tank, the non-pressure sensor and its corresponding sampling water tank are connected to the sampling main pipe in parallel; Each sensor is connected to an instrument head.

[0006] The adjusting valve and the flow meter are connected to an instrument controller for control, the instrument controller has a built-in PID regulation control function module, can set appropriate flow rate through operation on the controller panel, and can view current flow rate and adjusting valve opening on the controller in real time.

[0007] The pressure-resistant sensor is an optical measurement sensor that can withstand pressure, and the pressure-resistant sensor is installed in a U-shaped groove in the middle position to ensure that the pipeline is full when the water flow is small. When multiple pressure-resistant sensors are used, they are connected in series in a detour manner.

[0008] The sampling water tank is designed in a cylindrical barrel shape, the inner diameter of the water tank is slightly longer than the outer diameter of the sensor probe by 2-5 cm, to ensure that the water flow flows out after entering the measurement area, reducing the stagnation time.

[0009] A manual ball valve is installed at the water inlet end of each sampling water tank.

[0010] The integrated water quality monitoring device adopts vertical cabinet installation, and the equipment is hung on the installation back plate, water is introduced from the bottom, water is discharged from the bottom, and the pipeline is arranged in a detour, so that space is saved, and the instrument controller is installed on the front door panel of the cabinet.

[0011] The utility model discloses beneficial effect is:

[0012] (1) the utility model discloses process pipeline adopts the form of easy extension, and the whole device only remains an inlet and a drain to the outside, which is convenient to install and use.

[0013] (2) according to the different types of sensor probes, classification assembly design is adopted, and the sensor probes are divided into two categories, one is a pressure-resistant sensor adopting optical measurement, which is installed in series on the sampling main pipeline, and the other is a pressureless sensor probe installed in a sampling water tank, water flows into the inlet pipe from the top and flows out from the bottom after passing through the pressureless sensor probe, and is discharged into a drainage ditch after being collected. According to the number of sensor probes, the corresponding sampling water tank can be increased, and they are connected in parallel, so that the sampling and detection processes do not interfere with each other, and water pollution is avoided.

[0014] (3) the inlet pipeline is provided with an adjusting valve and a flowmeter, the size of the inlet flow and the opening degree of the inlet adjusting valve are collected and detected, the opening degree of the adjusting valve is controlled according to the size of the flow, so that the inlet flow rate is controlled, the setting of the flow rate is controlled by a conventional instrument controller, the instrument controller has a built-in PID regulating control function module, the appropriate flow rate can be set through the operation of the controller panel, and the current flow and the opening degree of the adjusting valve can be viewed in real time on the controller. Therefore, the stability of the inlet flow rate is ensured, and the overflow of the sampling water tank or the insufficient water sample is avoided.

[0015] (4) the water tank adopts a cylindrical barrel type design, the inner diameter of the water tank is slightly longer than the outer diameter of the probe by 2-5cm, so that the water flow flows out after entering the measurement area, the stagnation time is reduced, the measurement installation requirements are met, and space is saved.

[0016] (5) vertical cabinet installation is adopted, and the pipeline is arranged in a detour, so that space is saved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model embodiment 1;

[0018] Among them: 1. adjusting valve, 2. flowmeter, 3. pressure sensor, 4. manual ball valve, 5. pressureless sensor, 6. sampling water tank, 7. instrument head, 8. instrument controller.

[0019] Figure 2 It is a back plate arrangement drawing of the utility model embodiment 2. DETAILED DESCRIPTION

[0020] In order for those skilled in the art to better understand the present application, the technical solutions of the present application will be further described below in conjunction with embodiments.

[0021] Embodiment 1

[0022] The integrated water quality monitoring device is applied to water quality online monitoring of water plant inlet and outlet water main, factory multiple water quality detection nodes, reservoir and other facilities.

[0023] As Figure 1 shown in the application is a water quality monitoring device of a single pressure-resistant probe sensor and two pressureless probe sensors, which can be expanded according to requirements in actual application. The integrated water quality monitoring device comprises a water inlet, a water outlet, a water inlet pipeline and a sampling pipeline, the water inlet pipeline is provided with an adjusting valve 1 and a flowmeter 2, the sampling pipeline is provided with two types of sensors, one type is a pressure-resistant sensor 3 connected in series on the sampling main pipeline, and the other type is a pressureless sensor 5 installed in a sampling water tank 6, the pressureless sensor 5 and the corresponding sampling water tank 6 are connected in parallel and then connected to the sampling main pipeline; each sensor is connected with an instrument head 7.

[0024] The water sample inlet pipe is connected to the sampling port of the pressure pipeline, and for multiple water quality detection of the reservoir, a sampling pump device is added to connect the water sample to the sampling pipeline after pressurization. The sampling water passes through the adjusting valve and the flowmeter, and the stable water inlet flow rate is realized through closed-loop regulation. The operation device for adjusting the flow size is an instrument controller 8. The instantaneous flow signal of the flowmeter is connected to the instrument controller 8, a required flow value is set on the instrument controller 8, and the instrument controller 8 outputs a 4-20mA opening signal to the adjusting valve after PID adjustment. The adjusting valve adjusts the valve opening size after receiving the signal to control the flow rate, thereby ensuring the stability of the water inlet flow rate.

[0025] The pressure-resistant sensor 3 generally adopts optical measurement and is installed at the water inlet end of the sampling main pipeline. In order to ensure continuous and accurate measurement at low flow rate, the pressure-resistant sensor is installed in a U-shaped groove, and the pressure-resistant sensor is installed at the middle position of the U-shaped groove to ensure that the pipeline is full when the water flow is small. If there are multiple pressure-resistant sensors, they can be connected in series in a detour manner.

[0026] After the sampling water passes through the pressure-resistant sensor, it enters the pressureless sensor 5 measurement pipeline. The pressureless sensor measurement pipeline adopts a parallel connection mode, and the pressureless sensor is installed in the respective sampling water tank. The sampling water tank adopts a cylindrical barrel type design, the inner diameter of the water tank is 2-5cm larger than the outer diameter of the sensor probe, the sampling water tanks are connected in parallel, are easy to expand, and a manual ball valve is installed at the water inlet end of each sampling water tank to close the sampling water inlet when a single instrument needs to be maintained and adjusted.

[0027] Example 2

[0028] The installation mode of the integrated water quality monitoring device is shown in the accompanying drawings. Figure 2 As shown in the plan view, the installation mode includes four pressure-resistant sensors and two non-pressure sensors. The equipment of the integrated water quality monitoring device is installed in a vertical cabinet, and the equipment is hung on the installation back plate. The water inlet is at the bottom, the water outlet is at the bottom, the pipeline is arranged in a detour, the space is saved, the controller is installed on the front door panel of the cabinet, and the controller is used for on-site viewing and flow speed adjustment setting.

[0029] The above is an example implementation of the present application, and the description of the specific examples is only for better understanding of the idea of the present application. For ordinary skilled persons in the art, according to the principle of the present application, several improvements or equivalent replacements can be made, and these improvements or equivalent replacements are also considered to fall within the protection scope of the present application.

Claims

1. An integrated water quality monitoring device, characterized by, The device comprises a water inlet, a water outlet, a water inlet pipeline and a sampling pipeline, the water inlet pipeline is provided with an adjusting valve and a flow meter, the sampling pipeline is provided with two types of sensors, one type is a pressure-resistant sensor connected in series on the sampling main pipeline, and the other type is a non-pressure sensor installed in a sampling water tank, the non-pressure sensor and the corresponding sampling water tank are connected in parallel and then connected to the sampling main pipeline, and each sensor is connected with an instrument head.

2. The integrated water quality monitoring device of claim 1, wherein The adjusting valve and the flow meter are connected with an instrument controller.

3. The integrated water quality monitoring device of claim 1, wherein, The pressure-resistant sensors are all installed in U-shaped pipelines, and the pressure-resistant sensors are installed at the middle positions of the U-shaped grooves.

4. The integrated water quality monitoring device of claim 1, wherein, The sampling water tank adopts a circular cylindrical barrel type design, and the inner diameter of the water tank is 2-5 cm longer than the outer diameter of the sensor probe.

5. The integrated water quality monitoring device of claim 1, wherein, A manual ball valve is installed at the water inlet end of each sampling water tank.

6. The integrated water quality monitoring device of claim 1, wherein, All the devices of the integrated water quality monitoring device are installed in vertical cabinets, the devices are hung on an installation back plate, the water is fed from the bottom, the water is drained from the bottom, the pipelines are arranged in a circuitous manner, and the instrument controller is installed on the front door panel of the cabinet.

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