Boiler water quality detection device capable of sampling regularly

Abstract

The utility model relates to the technical field of boiler water quality detection devices, in particular to a timing sampling boiler water quality detection device which comprises a detection box, a sampling pump, a lifting mechanism, a timing control mechanism and a sampling pipe. The top of the sampling pipe is connected with the sampling pump through a telescopic pipe, the sampling pump is connected with the detection box through a conveying pipe, a pH value sensor, a hardness sensor and a dissolved oxygen sensor are arranged in the detection box, and the timing control mechanism is electrically connected with the electromagnetic valve, the sampling pump and the lifting mechanism; the timing control mechanism is electrically connected with the electromagnetic valve, the sampling pump and the lifting mechanism, so that opening of the electromagnetic valve and starting of the lifting mechanism and the sampling pump can be controlled according to preset time intervals, water samples can be regularly extracted from the boiler to the detection box, and the problem that real-time change of water quality cannot be timely reflected by manual regular sampling is solved; water quality information can be obtained in time, and the boiler operation risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of boiler water quality detection device, more exactly relates to a timing sampling boiler water quality detection device. BACKGROUND

[0002] As an important equipment widely used in industrial production and daily life, the safety and stability of the boiler operation are crucial. The quality of the boiler water directly affects the performance and service life of the boiler. Unsuitable water quality may cause a series of serious problems.

[0003] When the water used by the boiler has high hardness, calcium, magnesium and other ions in the water will gradually form scale on the heating surface of the boiler. The thermal conductivity of the scale is very poor, which will cause a significant reduction in the thermal efficiency of the boiler. Related research shows that when the thickness of the scale reaches 1mm, fuel consumption will increase by about 5%-8%. This not only causes a huge waste of energy and increases production costs, but also causes the temperature of the heating surface to be too high, accelerating the damage to the metal material, and in severe cases, may even cause a safety accident such as pipe explosion. Dissolved oxygen, acidic substances and other substances in the water can cause corrosion to the metal parts of the boiler. Corrosion will weaken the strength of the boiler structure and shorten its service life, and the corrosion products entering the water may further affect the water quality, forming a vicious cycle. According to statistics, the cost of boiler repair and replacement due to water corrosion problems accounts for a large proportion in some enterprises.

[0004] Currently, the detection of boiler water quality mainly adopts two ways: manual periodic sampling and online continuous detection. The manual periodic sampling detection method has obvious limitations. On the one hand, the time interval of manual sampling is often long, which cannot reflect the real-time changes of water quality. For example, during the time interval between two samplings, the water quality may have changed greatly, but since it is not detected in time, these changes cannot be discovered and handled in time, thereby increasing the risk of boiler operation. On the other hand, the manual sampling process is easily affected by human factors, such as inaccurate sampling position, non-standard sampling operation, etc., resulting in reduced accuracy and reliability of the detection results. Although online continuous detection can monitor water quality parameters in real time, the equipment cost is high and the maintenance difficulty is great. For some small enterprises or occasions where the water quality requirement is not very strict, the high equipment purchase and maintenance cost makes it difficult for online continuous detection to be popularized. Moreover, the online detection equipment is easily affected by impurities, microorganisms and other substances in the water during long-term operation, resulting in a decrease in detection accuracy and the need for frequent calibration and maintenance.

[0005] Therefore, there is an urgent need in the market for a boiler water quality detection device that can take samples at regular intervals, which can not only ensure timely acquisition of water quality information, but also reduce cost and maintenance difficulty, improve the accuracy and reliability of the detection results, and ensure the safe and stable operation of the boiler. CONTENT OF THE UTILITY MODEL

[0006] The utility model discloses a kind of boiler water quality detection devices of timing sampling, overcome the problem that artificial periodic sampling cannot reflect water quality real-time change in time, ensure that water quality information can be obtained in time, reduce boiler operation risk.

[0007] In order to achieve the above object, the technical scheme of the utility model is as follows:

[0008] A kind of boiler water quality detection devices of timing sampling, including detection box, sampling pump, lifting mechanism, timing control mechanism and be located in the sampling pipe in boiler, the lifting mechanism drives the sampling pipe to lift in the boiler, electromagnetic valve is installed on the sampling pipe, the top of the sampling pipe is connected with the sampling pump by telescopic pipe, the sampling pump is connected with detection box by delivery pipe, the detection box is provided with pH sensor, hardness sensor and dissolved oxygen sensor, the timing control mechanism is electrically connected with electromagnetic valve, sampling pump and lifting mechanism.

[0009] Further, the lifting mechanism includes electric telescopic rod, the electric telescopic rod is driven to be connected with mounting seat, the sampling pipe is fixedly installed on the mounting seat.

[0010] Further, filter screen is provided in the sampling pipe.

[0011] Further, three-way pipe is provided on the telescopic pipe, two ends of the three-way pipe are connected with the sampling pipe and sampling pump respectively, another end of the three-way pipe is connected with fresh water storage tank by cleaning pipe, cleaning pump is installed on the cleaning pipe.

[0012] Further, the timing control mechanism includes timer and controller, the timer is used to set time interval, the controller is electrically connected with the timer, electromagnetic valve, sampling pump and lifting mechanism.

[0013] Further, microprocessor and display screen are further included, the microprocessor is electrically connected with the pH sensor, hardness sensor, dissolved oxygen sensor and display screen.

[0014] Compared with prior art, the utility model has the beneficial effects:

[0015] The utility model discloses a timing control mechanism and solenoid valve, sampling pump and lifting mechanism electric connection can according to preset time interval control solenoid valve opening and lifting mechanism, sampling pump start, realize the water sample from the boiler to the detection box of drawing in fixed time, overcome the problem that artificial periodic sampling can not reflect water quality real -time change in time, guarantee can obtain water quality information in time, reduce the risk of boiler operation, lifting mechanism can drive sampling tube to lift in the boiler, can according to need sampling in different depth position, compared with fixed position sampling, can more comprehensively reflect the water quality situation in the boiler, improve the accuracy and representativeness of detection result. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model.

[0017] 1, detection box;2, sampling pump;3, sampling tube;4, solenoid valve;5, telescopic pipe;6, delivery pipe;7, acidity and alkalinity sensor;8, hardness sensor;9, dissolved oxygen sensor;10, electric telescopic rod;11, mounting seat;12, three-way pipe;13, cleaning pipe;14, clean water storage tank;15, cleaning pump;16, timer;17, controller. DETAILED DESCRIPTION

[0018] As Figure 1 Shown, a kind of boiler water quality detection device of timing sampling, including detection box 1, sampling pump 2, lifting mechanism, timing control mechanism and be located in the sampling tube 3 of boiler, the lifting mechanism drives the sampling tube 3 in the boiler lift, solenoid valve 4 is installed on the sampling tube 3, the top of the sampling tube 3 is connected with the sampling pump 2 by telescopic pipe 5, the sampling pump 2 is connected with detection box 1 by delivery pipe 6, the detection box 1 is provided with acidity and alkalinity sensor 7, hardness sensor 8 and dissolved oxygen sensor 9, the timing control mechanism is electrically connected with solenoid valve 4, sampling pump 2 and lifting mechanism.

[0019] The lifting mechanism includes electric telescopic rod 10, the electric telescopic rod 10 is driven to be connected with mounting seat 11, the sampling tube 3 is fixedly installed on the mounting seat 11.

[0020] The sampling tube 3 is provided with filter screen.

[0021] The telescopic pipe 5 is provided with three-way pipe 12, two ends of the three-way pipe 12 are connected with the sampling tube 3 and sampling pump 2 respectively, another end of the three-way pipe 12 is connected with clean water storage tank 14 by cleaning pipe 13, and cleaning pump 15 is installed on the cleaning pipe 13.

[0022] The timing control mechanism comprises a timer 16 for setting a time interval and a controller 17 electrically connected with the timer 16, the electromagnetic valve 4, the sampling pump 2 and the lifting mechanism.

[0023] The microprocessor is electrically connected with the pH sensor 7, the hardness sensor 8, the dissolved oxygen sensor 9 and the display screen.

[0024] Working principle:

[0025] After the timer 16 in the timing control mechanism sets the time interval, a time signal is transmitted to the controller 17, and when the set sampling time is reached, the controller 17 controls the lifting mechanism to act, and the electric telescopic rod 10 drives the mounting base 11 to drive the sampling pipe 3 to rise or fall to the appropriate sampling position in the boiler. Then, the controller 17 controls the electromagnetic valve 4 to open, and at the same time, the sampling pump 2 is started, and the water in the boiler is drawn into the detection box 1 through the sampling pipe 3 provided with a filter screen, the telescopic pipe 5 and the conveying pipe 6. The pH sensor 7, the hardness sensor 8 and the dissolved oxygen sensor 9 in the detection box 1 detect the pH value, the hardness and the dissolved oxygen content of the water sample respectively, and transmit the detected analog signals to the microprocessor. After the microprocessor converts and processes the signals, the processing results are displayed on the display screen. After completing a sampling detection, the controller 17 controls the cleaning pump 15 to start, and the clean water in the clean water storage tank 14 is conveyed to the sampling pipe 3 and the detection box 1 through the cleaning pipe 13, the three-way pipe 12 and the telescopic pipe 5, so as to clean the sampling pipe 3 and the detection box 1, and prevent the influence of water sample residues on the next detection result.

[0026] The adjustable sampling position and multi-parameter detection of the utility model, together with the cleaning mechanism for cleaning the sampling pipe 3 and the detection box 1, avoid the influence of water sample residues and impurities, and ensure the accuracy and reliability of the detection results from multiple aspects. Compared with the online continuous detection equipment, the device has a relatively simple structure and low cost, and does not need to be frequently calibrated and maintained, and is suitable for small enterprises or occasions where the water quality requirement is not very strict. The setting of the timing control mechanism and the microprocessor realizes automatic timing sampling, detection and data processing display of the device, reduces manual intervention, improves work efficiency and reduces the influence of human factors on the detection results. Through timely and accurate detection of the boiler water quality, water quality problems can be found in time and corresponding measures can be taken, the formation of water scale and metal corrosion are reduced, the service life of the boiler is prolonged, and the maintenance and replacement costs of enterprises are reduced.

[0027] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A time-sampled boiler water quality detection device, characterized by: The device comprises a detection box (1), a sampling pump (2), a lifting mechanism, a timing control mechanism and a sampling tube (3) arranged in the boiler, the lifting mechanism drives the sampling tube (3) to lift in the boiler, an electromagnetic valve (4) is installed on the sampling tube (3), the top of the sampling tube (3) is connected with the sampling pump (2) through an extension tube (5), the sampling pump (2) is connected with the detection box (1) through a conveying tube (6), the detection box (1) is provided with a pH sensor (7), a hardness sensor (8) and a dissolved oxygen sensor (9), and the timing control mechanism is electrically connected with the electromagnetic valve (4), the sampling pump (2) and the lifting mechanism.

2. The boiler water quality detecting apparatus of claim 1, wherein: The lifting mechanism comprises an electric telescopic rod (10), the electric telescopic rod (10) is drivenly connected with a mounting base (11), and the sampling tube (3) is fixedly installed on the mounting base (11).

3. The timed-sampling boiler water quality testing device of claim 1, wherein: The sampling tube (3) is provided with a filter screen.

4. The boiler water quality detecting apparatus of claim 3, wherein: A three-way pipe (12) is arranged on the extension tube (5), two ends of the three-way pipe (12) are connected with the sampling tube (3) and the sampling pump (2) respectively, the other end of the three-way pipe (12) is connected with a clean water storage tank (14) through a cleaning pipe (13), and a cleaning pump (15) is installed on the cleaning pipe (13).

5. The timed-sampling boiler water quality testing device of claim 1, wherein: The timing control mechanism comprises a timer (16) and a controller (17), the timer (16) is used for setting time interval, and the controller (17) is electrically connected with the timer (16), the electromagnetic valve (4), the sampling pump (2) and the lifting mechanism.

6. The timed-sampling boiler water quality detection device of claim 1, wherein: A microprocessor and a display screen are further included, and the microprocessor is electrically connected with the pH sensor (7), the hardness sensor (8), the dissolved oxygen sensor (9) and the display screen.

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