Sampling device for power plant chemistry

Abstract

The utility model relates to the technical field of chemical sampling and discloses a sampling device for power plant chemistry, which comprises a shell, a sampling tube, a pressure reducing and cooling assembly, an impurity filtering assembly, a bubble eliminating assembly and a sample collecting bottle are arranged in the shell, the sampling tube penetrates through the shell and extends to the outer side of the shell, and the pressure reducing and cooling assembly comprises an electric stop valve. The sampling pipe is connected with an electric stop valve, the right side of the electric stop valve is connected with a cooler, the right side of the cooler is provided with a pressure reducing valve, the impurity filtering assembly comprises a filtering box and a pressure pump machine, and the pressure reducing valve is connected with the filtering box through a first connecting pipe; the device has the advantages that efficient pressure reduction and cooling are achieved through the electric stop valve and the spiral cooling pipe, impurity removal is achieved through the multi-layer filtering structure and the pressure pump, and bubbles are separated through the inclined plate, the liquid level detector and the automatic exhaust valve.

Description

Technical Field

[0001] This utility model relates to the field of chemical sampling technology, specifically to a sampling device for chemical use in power plants. Background Technology

[0002] In the production and operation of power plants, accurate detection of various chemical substances is a crucial step in ensuring the safe and stable operation of the units. Sampling, as the initial step in detection, directly affects the reliability of subsequent analytical results due to its accuracy and effectiveness.

[0003] Currently available chemical sampling devices for power plants are cumbersome and inefficient when processing high-temperature, high-pressure steam and water samples. They also struggle to effectively remove impurities and bubbles from the samples. The presence of these impurities and bubbles can interfere with subsequent chemical analysis, leading to deviations in test results and failing to provide accurate data support for the operation and control of power plants. Utility Model Content

[0004] To address the aforementioned technical problems, this invention provides a sampling device for power plant chemistry. It solves the problem that the processing of high-temperature and high-pressure soda samples is not only cumbersome and inefficient, but also difficult to effectively remove impurities and bubbles mixed in the samples. The presence of these impurities and bubbles can interfere with subsequent chemical analysis, leading to deviations in the test results.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a sampling device for power plant chemistry, comprising a shell, wherein a sampling tube, a pressure reducing and cooling component, an impurity filtering component, a bubble eliminating component, and a sample collection bottle are disposed inside the shell, the sampling tube penetrates the shell and extends to the outside of the shell, the pressure reducing and cooling component includes an electric shut-off valve, the sampling tube is connected to the electric shut-off valve, a cooler is connected to the right side of the electric shut-off valve, a pressure reducing valve is disposed to the right side of the cooler, the impurity filtering component includes a filter box and a pressure pump, the pressure reducing valve is connected to the filter box through a first connecting pipe, the bubble eliminating component includes a separation box and an automatic exhaust valve, the lower end of the filter box is connected to the separation box through a second connecting pipe, and the lower part of the separation box is connected to the sample collection bottle.

[0006] As an improvement, the cooler is equipped with a spiral cooling pipe and a coolant. The spiral cooling pipe is connected to the electric shut-off valve and the pressure reducing valve respectively to cool the sample.

[0007] As an improvement, a mounting plate is provided on one side of the inner cavity of the outer shell, and the pressure pump is mounted on the mounting plate. The output end of the pressure pump is provided with a pressure pipe, which passes through the filter box and extends into the filter box. The filter box is provided with a first filter plate, a second filter plate and filter cotton from top to bottom. A spray plate is provided at the upper end of the filter box, and the first connecting pipe is connected to the spray plate to filter the sample.

[0008] As an improvement, the separation chamber is equipped with several inclined plates and a liquid level detector. The upper end of the separation chamber is equipped with an exhaust pipe that penetrates the outer shell and extends to the outside of the outer shell. An automatic exhaust valve is installed on the exhaust pipe. Fixing blocks are provided on both sides of the separation chamber. The two fixing blocks are fixedly connected to the inner cavity of the outer shell to separate air bubbles and discharge them in time to prevent the internal air pressure from being too high.

[0009] As an improvement, the outer casing has a rotating door on the front, a lock on the door, an observation window on the door, and the sample collection bottle is made of transparent material, making the device more practical.

[0010] The advantages of this invention compared to existing technologies are: efficient pressure reduction and cooling through an electric shut-off valve and spiral cooling pipe; impurity removal through a multi-layer filtration structure and a pressurizing pump; bubble separation through an inclined plate, liquid level detector, and automatic exhaust valve; compact and easy-to-operate device; improved sample purity and detection accuracy; and convenient installation and maintenance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0013] As shown in the figure: 1. Outer shell; 2. Sampling tube; 3. Electric shut-off valve; 4. Cooler; 5. Spiral cooling tube; 6. Observation window; 7. Pressure reducing valve; 8. First connecting pipe; 9. Spraying plate; 10. Filter box; 11. Pressure pump; 12. Mounting plate; 13. Pressure pipe; 14. First filter plate; 15. Second filter plate; 16. Filter cotton; 17. Second connecting pipe; 18. Separation box; 19. Inclined plate; 20. Fixing block; 21. Liquid level detector; 22. Exhaust pipe; 23. Automatic exhaust valve; 24. Sample collection bottle; 25. Box door; 26. Door lock. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] This utility model combines the sampling process with... Figures 1 to 2A sampling device for power plant chemistry includes a housing 1. Inside the housing 1 are a sampling tube 2, a pressure reducing and cooling assembly, an impurity filtration assembly, a bubble elimination assembly, and a sample collection bottle 24. The sampling tube 2 penetrates the housing 1 and extends to the outside of the housing 1. The pressure reducing and cooling assembly includes an electric shut-off valve 3, and the sampling tube 2 is connected to the electric shut-off valve 3. A cooler 4 is connected to the right side of the electric shut-off valve 3, and a pressure reducing valve 7 is provided on the right side of the cooler 4. The impurity filtration assembly includes a filter box 10 and a pressure pump 11. The pressure reducing valve 7 is connected to the filter box 10 through a first connecting pipe 8. The bubble elimination assembly includes a separation box 18 and an automatic exhaust valve 23. The lower end of the filter box 10 is connected to the separation box 18 through a second connecting pipe 17. The lower part of the separation box 18 is connected to the sample collection bottle 24. The cooler 4 contains a spiral cooling pipe 5 and a coolant. The spiral cooling pipe 5 is connected to the electric shut-off valve 3 and the pressure reducing valve 7 respectively to cool the sample.

[0016] A mounting plate 12 is provided on one side of the inner cavity of the outer shell 1. A pressure pump 11 is mounted on the mounting plate 12. A pressure pipe 13 is provided at the output end of the pressure pump 11. The pressure pipe 13 passes through the filter box 10 and extends into the filter box 10. The filter box 10 is provided with a first filter plate 14, a second filter plate 15 and filter cotton 16 from top to bottom. A spray plate 9 is provided at the upper end of the filter box 10. A first connecting pipe 8 is connected to the spray plate 9 to filter the sample. Several inclined plates 19 are provided in the separation box 18. A liquid level detector 21 is provided in the separation box 18. An exhaust pipe 22 is provided at the upper end of the separation box 18. The exhaust pipe 22 passes through the outer shell 1 and extends to the outside of the outer shell 1. An automatic exhaust valve 23 is installed on the exhaust pipe 22. Fixing blocks 20 are provided on both sides of the separation box 18. The two fixing blocks 20 are fixedly connected to the inner cavity of the outer shell 1 to separate air bubbles and discharge them in time to prevent the internal air pressure from being too high.

[0017] The outer casing 1 has a rotating door 25 on the front, a door lock 26 on the door 25, and an observation window 6 on the door 25. The sample collection bottle 24 is made of transparent material, making the device more practical.

[0018] In actual use, the outer casing 1 is first fixedly installed in a suitable position near the sampling pipeline in the power plant. The sampling tube 2 is connected to the pipeline through sealing connectors such as flanges, ensuring a tight and leak-free connection. The coolant circulation pipeline of the cooler 4 and the power lines of all electrical components are then connected. During sampling, the door 25 is opened, and after confirming that the internal components are properly connected, it is closed and locked with the door lock 26. The electric shut-off valve 3 is activated, and the opening is adjusted to allow the high-temperature and high-pressure steam-water sample to enter the device through the sampling tube 2. The sample first passes through the electric shut-off valve 3, and then undergoes sufficient heat exchange with the coolant in the spiral cooling pipe 5 of the cooler 4 to cool down. It then passes through the pressure reducing valve 7 to reduce the pressure. Finally, it enters the filter through the first connecting pipe 8. The sample is evenly dispersed in the chamber 10 under the action of the spray plate 9 and filtered sequentially through the first filter plate 14, the second filter plate 15, and the filter cotton 16. At the same time, the pressure pump 11 is started, pressurizing the sample through the pressure pipe 13 to accelerate the filtration speed. The filtered sample flows into the separation chamber 18 through the second connecting pipe 17. Under the action of the inclined plate 19, the bubbles rise fully. When the bubble pressure at the top of the separation chamber 18 reaches the set value, the automatic exhaust valve 23 opens to exhaust the air. The liquid level detector 21 monitors the liquid level in real time to ensure that the separation process is normal. Finally, the pure sample flows into the transparent sample collection bottle 24 below. After collection, the electric shut-off valve 3 is closed, the sample collection bottle 24 is taken out, sealed and labeled, and the sampling operation is completed.

[0019] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sampling device for chemical use in power plants, comprising a housing (1), characterized in that, The outer shell (1) is provided with a sampling tube (2), a pressure reducing and cooling component, an impurity filtering component, a bubble elimination component and a sample collection bottle (24). The sampling tube (2) penetrates the outer shell (1) and extends to the outside of the outer shell (1). The pressure reducing and cooling component includes an electric shut-off valve (3). The sampling tube (2) is connected to the electric shut-off valve (3). A cooler (4) is connected to the right side of the electric shut-off valve (3). A pressure reducing valve (7) is provided to the right side of the cooler (4). The impurity filtering component is connected to a filter box (10) and a pressure pump (11). The pressure reducing valve (7) is connected to the filter box (10) through a first connecting pipe (8). The bubble elimination component includes a separation box (18) and an automatic exhaust valve (23). The lower end of the filter box (10) is connected to the separation box (18) through a second connecting pipe (17). The lower part of the separation box (18) is connected to the sample collection bottle (24).

2. The sampling device for chemical processing in a power plant according to claim 1, characterized in that, The cooler (4) is equipped with a spiral cooling pipe (5) and coolant. The spiral cooling pipe (5) is connected to the electric shut-off valve (3) and the pressure reducing valve (7) respectively.

3. A sampling device for chemical processing in a power plant according to claim 1, characterized in that, The inner cavity of the outer shell (1) is provided with an installation plate (12), the pressure pump (11) is installed on the installation plate (12), the output end of the pressure pump (11) is provided with a pressure pipe (13), the pressure pipe (13) passes through the filter box (10) and extends into the filter box (10), the filter box (10) is provided with a first filter plate (14), a second filter plate (15) and filter cotton (16) from top to bottom, the filter box (10) is provided with a spraying disc (9) at the upper end, and the first connecting pipe (8) is connected to the spraying disc (9).

4. A sampling device for chemical processing in a power plant according to claim 1, characterized in that, The separation box (18) is provided with several inclined plates (19), and the separation box (18) is provided with a liquid level detector (21). The upper end of the separation box (18) is provided with an exhaust pipe (22). The exhaust pipe (22) passes through the outer shell (1) and extends to the outside of the outer shell (1). An automatic exhaust valve (23) is installed on the exhaust pipe (22). Fixing blocks (20) are provided on both sides of the separation box (18). The two fixing blocks (20) are fixedly connected to the inner cavity of the outer shell (1).

5. A sampling device for chemical processing in a power plant according to claim 1, characterized in that, The outer shell (1) has a rotating door (25) on its front side, a door lock (26) on the door (25), an observation window (6) on the door (25), and the sample collection bottle (24) is made of transparent material.

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