Boiler sampler and water quality online detection device

Abstract

The utility model discloses a boiler sampler and a water quality on-line detection device. The boiler sampler comprises a barrel body, a cooling module, a sensor module and a controller, an inner cylinder is arranged in the cylinder body, an inner cavity of the cylinder body is divided into a first sample chamber and a second sample chamber by the inner cylinder, the first sample chamber is connected with a first sample injection pipe, and the second sample chamber is connected with a second sample injection pipe; the cooling module comprises a cooling water inlet pipe, a cooling water inlet pump, a cooling water outlet pipe, a cooling water outlet pump and a cooling coil; two ends of the cooling coil are respectively connected with the cooling water inlet pipe and the cooling water outlet pipe; the sensor module comprises a first temperature sensor and a second temperature sensor, the first temperature sensor is arranged in the first sample chamber, and the second temperature sensor is arranged in the second sample chamber; the controller is electrically connected with the first temperature sensor and the second temperature sensor. The boiler water and boiler feed water can be sampled and detected online at the same time, sampling is convenient, potential safety hazards are reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler water quality sampling and detection, and particularly relates to a boiler sampler and a water quality on-line detection device. Background Art

[0002] According to the requirements of the boiler safety technical regulations, it is necessary to frequently conduct chemical tests on the water quality of the boiler, and a boiler sampler is used for sampling during the test. The existing boiler samplers have the following problems: first, there is only one sampling pipe, and it cannot sample and on-line detect the boiler water and boiler feed water at the same time; second, there is no function of automatically controlling the water sample temperature, resulting in a risk of scalding for the sampling personnel; third, the boiler sampler only has a cooling function, and the temperature of the boiler feed water is too low in winter to be directly monitored, and additional heating is required. The sampling of boiler water quality is inconvenient, and phenomena such as running, overflowing, dripping, and leaking often occur at the sampling site, posing potential safety hazards and low detection efficiency. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a boiler sampler and a water quality on-line detection device, which can sample and on-line detect the boiler water and boiler feed water at the same time, regulate the water temperature of the sample through a temperature sensor and the cooling water inflow, is convenient for sampling, reduces potential safety hazards, and improves the detection efficiency.

[0004] On the one hand, an embodiment of the utility model provides a boiler sampler, which includes a cylinder body, a cooling module, a sensor module and a controller;

[0005] An inner cylinder is arranged inside the cylinder body, and the inner cylinder divides the inner cavity of the cylinder body into a first sample chamber and a second sample chamber. The first sample chamber is connected with a first sampling pipe, and the second sample chamber is connected with a second sampling pipe;

[0006] The cooling module includes a cooling water inlet pipe, a cooling water inlet pump, a cooling water outlet pipe, a cooling water outlet pump and a cooling coil. The cooling water inlet pump is installed on the cooling water inlet pipe, the cooling water outlet pump is installed on the cooling water outlet pipe, and both ends of the cooling coil are respectively connected with the cooling water inlet pipe and the cooling water outlet pipe;

[0007] The sensor module includes a first temperature sensor and a second temperature sensor. The first temperature sensor is arranged in the first sample chamber, and the second temperature sensor is arranged in the second sample chamber;

[0008] The controller is electrically connected with the cooling water inlet pump, the cooling water outlet pump, the first temperature sensor and the second temperature sensor respectively.

[0009] According to some embodiments of the present utility model, a first regulating valve is provided on the first sampling pipe, and the first regulating valve is electrically connected to the controller, and the first regulating valve is used to regulate the sampling of boiler water.

[0010] According to some embodiments of the present utility model, a second regulating valve is provided on the second sampling pipe, and the second regulating valve is electrically connected to the controller, and the second regulating valve is used to regulate the sampling of boiler feed water.

[0011] According to some embodiments of the present utility model, a first drain pipe is provided in the first sample chamber, and a first on-off valve is provided on the first drain pipe.

[0012] According to some embodiments of the present utility model, a second drain pipe is provided in the second sample chamber, and a second on-off valve is provided on the second drain pipe.

[0013] According to some embodiments of the present utility model, the cooling coil is a double-row coil type cooling water pipe, and the cooling coil is made of stainless steel material.

[0014] According to some embodiments of the present utility model, a liquid level gauge is provided in both the first sample chamber and the second sample chamber, and the liquid level gauge is electrically connected to the controller.

[0015] According to some embodiments of the present utility model, several detection sensors are further provided in the first sample chamber and the second sample chamber, and the detection sensors are at least one of a pH value sensor, a conductivity sensor, a dissolved oxygen sensor, a sodium ion sensor, and a chloride ion sensor.

[0016] According to some embodiments of the present utility model, the detection sensor is provided with a high-temperature resistant protective sleeve, and the high-temperature resistant protective sleeve includes a protective sleeve cover plate, a rotating rod, a magnetic gravity ball, a magnetic suction piece, and a water outlet piston.

[0017] On the other hand, an embodiment of the present utility model provides a water quality on-line detection device, and the water quality on-line detection device includes the above-mentioned boiler sampler.

[0018] The embodiments of the present utility model have at least the following beneficial effects:

[0019] The boiler sampler provided by the present utility model includes a cylinder body, a cooling module, a sensor module, and a controller. The inner cylinder divides the inner cavity of the cylinder body into a first sample chamber and a second sample chamber, facilitating separate sampling. The first sampling pipe and the second sampling pipe enable different water samples to enter the corresponding sample chambers through their respective independent channels, ensuring the accuracy of the sampling process. The cooling water inlet pipe and the cooling water outlet pipe of the cooling module are connected to the cooling coil, and the cooling water is transported by the cooling water inlet pump and the cooling water outlet pump to cool the sample chambers. The first temperature sensor and the second temperature sensor in the sensor module respectively monitor the temperatures of the first sample chamber and the second sample chamber, providing real-time temperature feedback to the controller. The controller controls the operation of the cooling pump and automatically adjusts the cooling water flow according to the temperature detected by the sensor, ensuring that the temperatures of the first sample chamber and the second sample chamber are stable within the set range, guaranteeing the accuracy of sampling, and achieving precise and stable boiler water quality sampling. It can simultaneously sample and on-line detect the boiler water and the boiler feed water, adjust and control the sample water temperature through the temperature sensor and the cooling water inflow, so that the temperature of the boiler water in the first sample chamber is maintained within the preset range, avoiding the risk of scalding for sampling personnel, and the low-temperature second sample chamber can also ensure the water sample temperature in the northern winter, meeting the detection requirements and improving the detection efficiency.

[0020] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0022] Figure 1 is a schematic structural diagram of the boiler sampler according to an embodiment of the present utility model;

[0023] Figure 2 is Figure 1 a schematic cross-sectional structural diagram of the shown boiler sampler;

[0024] Figure 3 is Figure 1 a schematic top view structural diagram of the shown boiler sampler after removing the top cover;

[0025] Figure 4 is a schematic structural diagram of the high-temperature resistant protective cover of the sensor module of the boiler sampler according to an embodiment of the present utility model.

[0026] Reference Signs:

[0027] Cylinder body 100, first sample chamber 110, first sample inlet pipe 111, first exhaust pipe 112, first regulating valve 113, first switching valve 114, second sample chamber 120, second sample inlet pipe 121, second exhaust pipe 122, second regulating valve 123, second switching valve 124, inner cylinder 130, base 140, cooling module 200, cooling water inlet pipe 210, cooling water inlet pump 220, cooling water outlet pipe 230, cooling water outlet pump 240, cooling coil 250, sensor module 300, first temperature sensor 310, second temperature sensor 320, liquid level gauge 330, detection sensor 340, high-temperature resistant protective sleeve 350, protective sleeve cover plate 351, rotating rod 352, magnetic gravity ball 353, magnetic suction piece 354, water outlet piston 355, controller 400. Detailed implementation mode

[0028] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0029] In the description of the present invention, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0030] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as "above", "below", "within" etc. include the present number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected" and "coupled" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0032] The technical solutions of the present invention will be described in detail below with reference to the drawings and specific embodiments.

[0033] Please refer to Figures 1 to 3, this embodiment discloses a boiler sampler, which includes a cylinder body 100, a cooling module 200, a sensor module 300, and a controller 400. An inner cylinder 130 is arranged inside the cylinder body 100. The inner cylinder 130 divides the inner cavity of the cylinder body 100 into a first sample chamber 110 and a second sample chamber 120. The first sample chamber 110 is connected with a first sampling pipe 111, and the second sample chamber 120 is connected with a second sampling pipe 121. The cooling module 200 includes a cooling water inlet pipe 210, a cooling water inlet pump 220, a cooling water outlet pipe 230, a cooling water outlet pump 240, and a cooling coil 250. The cooling water inlet pump 220 is installed on the cooling water inlet pipe 210, and the cooling water outlet pump 240 is installed on the cooling water outlet pipe 230. Two ends of the cooling coil 250 are respectively connected with the cooling water inlet pipe 210 and the cooling water outlet pipe 230. The sensor module 300 includes a first temperature sensor 310 and a second temperature sensor 320. The first temperature sensor 310 is arranged in the first sample chamber 110, and the second temperature sensor 320 is arranged in the second sample chamber 120. The controller 400 is electrically connected with the cooling water inlet pump 220, the cooling water outlet pump 240, the first temperature sensor 310, and the second temperature sensor 320 respectively.

[0034] The inner cylinder 130 divides the inner cavity of the cylinder body 100 into the first sample chamber 110 and the second sample chamber 120, which is convenient for sampling separately. The first sampling pipe 111 and the second sampling pipe 121 enable different water samples to enter the corresponding sample chambers through their respective independent channels, ensuring the accuracy of the sampling process. The cooling water inlet pipe 210 and the cooling water outlet pipe 230 of the cooling module 200 are connected to the cooling coil 250, and the cooling water is transported through the cooling water inlet pump 220 and the cooling water outlet pump 240 to realize the cooling of the sample chambers. The first temperature sensor 310 and the second temperature sensor 320 in the sensor module 300 respectively monitor the temperatures of the first sample chamber 110 and the second sample chamber 120, providing real-time temperature feedback to the controller 400. The controller 400 controls the operation of the cooling pump and automatically adjusts the cooling water flow according to the temperature detected by the sensor, ensuring that the temperatures of the first sample chamber 110 and the second sample chamber 120 are stable within the set range, guaranteeing the accuracy of sampling and realizing accurate and stable boiler water quality sampling. It can simultaneously sample and on-line detect the boiler water and the boiler feed water, and adjust and control the sample water temperature through the temperature sensor and the cooling water inflow, so that the temperature of the boiler water in the first sample chamber 110 is maintained within the preset range, such as 30 - 40 °C, avoiding the risk of scalding for sampling personnel, and the low-temperature second sample chamber 120 can also ensure the water sample temperature in the northern winter, being suitable for the detection requirements and improving the detection efficiency.

[0035] Please refer to Figure 1 and Figure 2, the first sampling tube 111 is provided with a first regulating valve 113, and the first regulating valve 113 is electrically connected to the controller 400. The first regulating valve 113 is used to regulate the sampling of boiler water. The boiler water sample is collected through the first sampling tube 111, and the first regulating valve 113 controls the flow rate and quantity of the boiler water sample collected from the first sampling tube 111 to ensure the stability and reliability of the sampling process. The controller 400 receives the feedback signal from the first regulating valve 113 and automatically adjusts the working state of the first regulating valve 113 according to the preset parameters to ensure the accuracy and stability of sampling. When taking out the boiler water sample from the boiler, the first sampling tube 111 is responsible for providing the sample channel, and the first regulating valve 113 adjusts the flow rate of the sample according to the instruction of the controller 400.

[0036] Please refer to Figure 1 and Figure 2 , the second sampling tube 121 is provided with a second regulating valve 123, and the second regulating valve 123 is electrically connected to the controller 400. The second regulating valve 123 is used to regulate the sampling of boiler feed water. The sample of boiler feed water is received through the second sampling tube 121, and the second regulating valve 123 can adjust the flow rate of the boiler feed water entering the second sampling tube 121 as needed, and realize the intelligent control of the second regulating valve 123 through the controller 400. When the controller 400 receives the preset instruction, it precisely adjusts the opening degree of the second regulating valve 123, and then controls the water quantity flowing into the second sampling tube 121 to ensure the stability and controllability of the water quantity during the sampling process, and avoid the problem of inaccurate sampling caused by water quantity fluctuation. The controller 400 controls the opening and closing degree of the second regulating valve 123 according to the preset parameters, so as to precisely adjust and maintain the water quantity of the boiler feed water entering the second sampling tube 121 to ensure the accuracy and stability of sampling.

[0037] Please refer to Figure 1 and Figure 2 , the first sample chamber 110 is provided with a first drain pipe 112, and the first drain pipe 112 is provided with a first on-off valve 114. The first sample chamber 110 is used to store samples, such as boiler water; a first drain pipe 112 is provided at the bottom, and a first on-off valve 114 is installed on the first drain pipe 112. The function of the first drain pipe 112 is to drain the water sample in the sample chamber after detection. The opening and closing of the first drain pipe 112 are controlled by the first on-off valve 114. After the detection is completed, the controller 400 controls the first on-off valve 114 to open, so as to open the first drain pipe 112, and the water sample in the first sample chamber 110 is discharged through the first drain pipe 112, so as to achieve the purpose of emptying the first sample chamber 110.

[0038] Please refer to Figure 1 and Figure 2, a second sample chamber 120 is provided with a second drain pipe 122, and the second drain pipe 122 is provided with a second on-off valve 124. The second sample chamber 120 is used for storing samples, such as boiler feed water; a second drain pipe 122 is provided at the bottom, and a second on-off valve 124 is installed on the second drain pipe 122. The function of the second drain pipe 122 is to drain the water sample in the sample chamber after detection. The opening and closing of the second drain pipe 122 are controlled by the second on-off valve 124. After the detection is completed, the controller 400 controls the second on-off valve 124 to open, thereby opening the second drain pipe 122, and the water sample in the second sample chamber 120 is discharged through the second drain pipe 122, so as to achieve the purpose of emptying the second sample chamber 120.

[0039] Please refer to Figure 2 and Figure 3 , the cooling coil 250 is a double-row coil type cooling water pipe, and the cooling coil 250 is made of stainless steel. The structural design of the double-row coil increases the flow path of the cooling medium in the pipe, enhances the cooling efficiency, can absorb and transfer heat more effectively, and thus achieves a better cooling effect; the cooling coil 250 is made of stainless steel, has good corrosion resistance and a long service life, and can effectively resist the erosion of corrosive media that may be generated during the cooling process. Through the application of stainless steel material and double-row coil structure, the cooling coil 250 improves the cooling efficiency while ensuring long-term stable operation.

[0040] Please refer to Figure 2 and Figure 3 , both the first sample chamber 110 and the second sample chamber 120 are provided with a liquid level gauge 330, and the liquid level gauge 330 is electrically connected to the controller 400. The liquid level gauge 330 is used to monitor the liquid level height of the water sample in the first sample chamber 110 and the second sample chamber 120 to ensure that the sample is within a suitable liquid level range. By receiving the signal transmitted by the liquid level gauge 330, the controller 400 can monitor and adjust the liquid level change in the two sample chambers in real time to ensure the consistency and stability of the sampling environment. The function of the liquid level gauge 330 is to sense and transmit the liquid level information, while the controller 400 performs automatic control based on the received information to maintain the stability of the liquid level. The liquid level gauge 330 continuously monitors the liquid level in the sample chamber and transmits the liquid level signal to the controller 400. The controller 400 automatically adjusts the input amount of the sample based on the received liquid level signal, so as to keep the liquid level in the sample chamber within the preset range, providing a constant and reliable liquid environment for the detection.

[0041] Please refer to Figure 2 and Figure 3, the first sample chamber 110 and the second sample chamber 120 are also provided with a number of detection sensors 340, and the detection sensors 340 are at least one of a pH sensor, a conductivity sensor, a dissolved oxygen sensor, a sodium ion sensor, and a chloride ion sensor. A plurality of holes are reserved in the first sample chamber 110 and the second sample chamber 120, and a number of detection sensors 340 are respectively inserted. These detection sensors 340 include a pH sensor, a conductivity sensor, a dissolved oxygen sensor, a sodium ion sensor, a chloride ion sensor, etc., for real-time monitoring of the chemical and physical parameters of the water sample. The pH sensor can detect the acidity and alkalinity of the water sample, the conductivity sensor is used to measure the conductivity of the water sample and the concentration of overall ions, the dissolved oxygen sensor monitors the amount of dissolved oxygen in the water sample, and the sodium ion sensor and the chloride ion sensor are respectively used to measure the contents of sodium ions and chloride ions in the water sample. These sensors work together to comprehensively evaluate the water quality of the sample and provide data support for subsequent water quality analysis and treatment. By obtaining various parameters of the sample in real time through these detection sensors 340 and then transmitting these data to the controller 400, effective monitoring of the water quality can be achieved.

[0042] Please refer to Figure 4 , the detection sensor 340 is provided with a high-temperature resistant protective sleeve 350, and the high-temperature resistant protective sleeve 350 includes a protective sleeve cover plate 351, a rotating rod 352, a magnetic gravity ball 353, a magnetic attraction piece 354, and a water outlet piston 355. Some of the above detection sensors 340 are not resistant to high temperatures and need to be equipped with a high-temperature resistant protective sleeve 350. The main function of the high-temperature resistant protective sleeve 350 is to protect the detection sensor 340 from damage in a high-temperature environment. The high-temperature resistant protective sleeve 350 plays a heat insulation role. When the temperature detected by the temperature sensor reaches the temperature resistance range of the detection sensor 340, by opening the protective sleeve cover plate 351, the sample flows into the high-temperature resistant protective sleeve 350. At this time, the magnetic gravity ball 353 compacts the water outlet piston 355, and the sample cannot flow out. After the detection sensor 340 finishes detection, rotate the rotating rod 352, and the magnetic attraction piece 354 adsorbs the magnetic gravity ball 353 to one side, and open the water outlet piston 355 to discharge the sample. The high-temperature resistant protective sleeve 350 can effectively protect the detection sensor 340 to work normally in a high-temperature environment.

[0043] Please refer to Figure 1, the cylinder body 100 is installed with a base 140, and the base 140 includes a plurality of struts. The cylinder body 100 realizes stable support and fixation through the installation of the base 140. The plurality of struts on the base 140 play a role in supporting the cylinder body 100, making the overall boiler sampler more stable and capable of withstanding greater loads without obvious deformation or displacement. The base 140 can effectively prevent the cylinder body 100 from displacing due to vibration or impact, ensuring the normal operation of the boiler sampler; through the support of the struts, the bottom pressure is evenly distributed, reducing the stress borne by a single strut; thus improving the overall stability and safety of the boiler sampler and enhancing the reliability and durability in practical applications.

[0044] This embodiment also discloses a water quality on-line detection device, including the above-mentioned boiler sampler.

[0045] Before the first detection, first connect the first sampling pipe 111 to the water outlet of the boiler drum water, and connect the second sampling pipe 121 to the water outlet of the boiler feed water; according to the detection requirements, insert different detection sensors 340 into the first sample chamber 110 and the second sample chamber 120. When sampling, the cooling water enters the cooling coil 250 through the cooling water inlet pump 220, and at the same time, keep the cooling water outlet pump 240 always open. The low-temperature boiler feed water enters the second sample chamber 120 through the second sampling pipe 121, and the high-temperature boiler drum water enters the sample through the first sampling pipe 111. The cooling coil 250 cools the boiler drum water in the first sample chamber 110, and at the same time balances the temperature of the boiler feed water in the second sample chamber 120. The controller 400 regulates the cooling water inflow of the cooling water inlet pump 220 through the first temperature sensor 310 and the second temperature sensor 320, and then regulates the sample temperature; then, the on-line detection of the boiler water quality is carried out through the detection sensor 340. After the detection, the water samples are discharged through the first drain pipe 112 and the second drain pipe 122. By adjusting the rotation speed of the cooling water inlet pump 220 to regulate the flow rate, and adopting a double-row coil type cooling water pipe to increase the heat transfer area and accelerate cooling, intelligent temperature control and automatic monitoring of the boiler water quality are realized, and the detection efficiency is improved. In addition, the cooling water can be recycled, which can save resources.

[0046] It should be noted that some of the detection sensors 340 are not resistant to high temperatures, and a high-temperature resistant protective sleeve 350 needs to be installed. The high-temperature resistant protective sleeve 350 plays a heat insulation role; when the temperature detected by the first temperature sensor 310 or the second temperature sensor 320 reaches the temperature resistance range of the detection sensor 340, by opening the protective sleeve cover plate 351, the water sample flows into the high-temperature resistant protective sleeve 350. At this time, the magnetic gravity ball 353 compresses the water outlet piston 355, preventing the water sample from flowing out. After the detection sensor 340 completes the detection, rotate the rotating rod 352, and the magnetic suction piece 354 adsorbs the magnetic gravity ball 353 to one side, and opens the water outlet piston 355 to discharge the water sample.

[0047] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A boiler sampler, comprising a cylinder (100) and a cooling module (200), characterized in that: Also includes a sensor module (300) and a controller (400); An inner cylinder (130) is arranged inside the cylinder (100), and the inner cylinder (130) divides the inner cavity of the cylinder (100) into a first sample chamber (110) and a second sample chamber (120), the first sample chamber (110) is connected to a first sample injection tube (111), and the second sample chamber (120) is connected to a second sample injection tube (121); The cooling module (200) comprises a cooling water inlet pipe (210), a cooling water inlet pump (220), a cooling water outlet pipe (230), a cooling water outlet pump (240) and a cooling coil (250); the cooling water inlet pump (220) is installed on the cooling water inlet pipe (210), the cooling water outlet pump (240) is installed on the cooling water outlet pipe (230), and two ends of the cooling coil (250) are respectively connected to the cooling water inlet pipe (210) and the cooling water outlet pipe (230); The sensor module (300) comprises a first temperature sensor (310) and a second temperature sensor (320), wherein the first temperature sensor (310) is arranged in the first sample chamber (110), and the second temperature sensor (320) is arranged in the second sample chamber (120); The controller (400) is electrically connected to the cooling water inlet pump (220), the cooling water outlet pump (240), the first temperature sensor (310), and the second temperature sensor (320), respectively.

2. The boiler sampler according to claim 1, characterized in that: The first sampling tube (111) is provided with a first regulating valve (113), the first regulating valve (113) is electrically connected to the controller (400), and the first regulating valve (113) is used to regulate boiler water sampling.

3. The boiler sampler according to claim 2, characterized in that: The second sampling tube (121) is provided with a second regulating valve (123), the second regulating valve (123) is electrically connected to the controller (400), and the second regulating valve (123) is used to regulate boiler feed water sampling.

4. The boiler sampler according to claim 1, characterized in that: The first sample chamber (110) is provided with a first exhaust pipe (112), and the first exhaust pipe (112) is provided with a first switch valve (114).

5. The boiler sampler according to claim 4, characterized in that: The second sample chamber (120) is provided with a second exhaust pipe (122), and the second exhaust pipe (122) is provided with a second switch valve (124).

6. The boiler sampler according to claim 1, characterized in that: The cooling coil (250) is a double-row coil type cooling water pipe, and the cooling coil (250) is made of stainless steel.

7. The boiler sampler according to claim 1, characterized in that: The first sample chamber (110) and the second sample chamber (120) are both provided with a liquid level meter (330), and the liquid level meter (330) is electrically connected to the controller (400).

8. The boiler sampler according to claim 7, characterized in that: The first sample chamber (110) and the second sample chamber (120) are also provided with a plurality of detection sensors (340), wherein the detection sensor (340) is at least one of a pH value sensor, a conductivity sensor, a dissolved oxygen sensor, a sodium ion sensor and a chloride ion sensor.

9. The boiler sampler according to claim 8, characterized in that: The detection sensor (340) is provided with a high temperature resistant protective sleeve (350), and the high temperature resistant protective sleeve comprises a protective sleeve cover plate (351), a rotating rod (352), a magnetic gravity ball (353), a magnetic suction sheet (354), and a water outlet piston (355).

10. A water quality online detection device, characterized in that: The water quality online detection device comprises the boiler sampler according to any one of claims 1 to 9.

Images