Condenser vacuum leakage detection device

Abstract

The utility model discloses a condenser vacuum leakage detection device, which belongs to the technical field of condenser detection, and comprises an instrument cabinet, the back surface of the instrument cabinet is communicated with a shunting pipe through a pipeline, one end of the shunting pipe is communicated with a shunting block, and the other end of the shunting pipe is communicated with a pipeline. A hole is formed in the side face of the flow dividing block, a connector is installed in the hole, a filter cylinder is installed in an inner cavity of the connector, and a clamping groove is formed in the position, close to an opening of the filter cylinder, of the inner side face of the connector. According to the utility model, the instrument cabinet is connected with the shunting block and the shunting pipe, so that when the detection device is used for the condenser, the shunting pipe and the shunting block are matched with the connecting pipeline, the pipeline of the condenser can be subjected to regional segmentation, and in the subsequent detection process, a leakage section can be determined through a small number of detection times in a grouping detection mode, so that the detection efficiency is improved. In addition, due to the components arranged in the connecting pipe, the pipeline can be quickly installed, and subsequent maintenance is also facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of condenser detection technology, specifically relating to a condenser vacuum leak detection device. Background Technology

[0002] A condenser mainly consists of a condenser, a condensate pump, an ejector, a circulating water pump, and the connecting pipes and accessories between them.

[0003] Condensing steam turbines are typical steam turbines widely used in modern thermal power plants and nuclear power plants. The condensing equipment is a crucial component of the steam turbine unit; its design, manufacturing, and operational quality directly affect the economy and safety of the turbine unit, acting as a cooling source in the turbine's thermodynamic cycle. Lowering the turbine's exhaust temperature and pressure can improve the thermal cycle efficiency.

[0004] When a condenser leaks, it can have a variety of impacts on the normal operation of the unit, such as deterioration of steam and water quality, equipment corrosion, salt and scale buildup, reduced unit economy, and increased risk of unplanned unit shutdowns. Therefore, condenser leak detection is of paramount importance.

[0005] Existing conventional condenser leak detection devices, after obtaining the detection results, are unable to pinpoint the specific leaking pipe in the condenser pipeline, thus failing to provide assistance for subsequent troubleshooting work. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a condenser vacuum leak detection device that can determine the pipeline to which the leak belongs.

[0007] The technical solution adopted to solve the above-mentioned technical problems is: a condenser vacuum leak detection device, including an instrument cabinet. The back of the instrument cabinet is connected to a diversion pipe through a pipeline. One end of the diversion pipe is connected to a diversion block. The diversion block has an opening on its side and a connector is installed in the opening. A filter cartridge is installed in the inner cavity of the connector. A slot is opened on the inner side of the connector near the opening of the filter cartridge. A slide rod is installed inside the slot. A connecting block is slidably installed on the outer surface of the slide rod. A connecting rod is rotatably installed on the side of the connecting block. A top rod is hinged to one end of the connecting rod. An arc-shaped clamping block is connected to the bottom of the connecting block by a spring. The instrument cabinet is equipped with a conductivity meter, an ion exchange column, an electrical control unit, and a sampling tank.

[0008] Furthermore, the diversion pipe is internally provided with a branching pipe with the same number of branches as the number of connectors, which converges at the tail end. A solenoid valve is installed in the middle section of the branching pipe. Through the above installation method, the branching pipes are connected to the connectors, and in combination with the use of the solenoid valve, when transporting the extracted sample water, group testing can be achieved to locate the leak position.

[0009] Furthermore, the filter cylinder has openings on its side that match the number and position of the arc-shaped clamps, so that the arc-shaped clamps can properly clamp the pipe inserted into the connector.

[0010] Furthermore, two slots are provided on the inner side of the connection in a symmetrical manner. By setting the number of slots and using the components provided in the slots, a stable clamping of the pipe can be achieved.

[0011] Furthermore, there are two connecting rods symmetrically distributed on the side of the connecting block. A spring is installed on the side of the connecting block and sleeved on the outer surface of the slide rod. By setting the number of connecting rods and combining them with the components set on the connecting rods, the connecting rods can drive the top rod to move as the connecting block slides, thereby better assisting the arc-shaped clamping block in clamping the pipe.

[0012] Furthermore, one end of the connector is connected to a sampling pump frame consisting of a vacuum pump, a solenoid valve, a check valve, and a vacuum gauge via a pipe, and the other end of the connector is connected to a diverter pipe via a pipe. The sampling pump frame is used to sample the water inside the condenser.

[0013] The beneficial effects of this utility model are as follows: By connecting a flow divider block and a flow divider pipe to the instrument cabinet, when this detection device is used in the condenser, the flow divider pipe and flow divider block, together with the connecting pipe, can divide the condenser pipe into areas. In the subsequent detection process, by group detection, the leakage section can be determined with fewer detections, thus facilitating subsequent troubleshooting. In addition, the components set in the connecting pipe enable the pipe to be installed quickly, which also facilitates subsequent maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a rear view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the diversion tube of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the diverter block of this utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the connector of this utility model;

[0019] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0020] Reference numerals in the attached diagram: 1. Instrument cabinet; 2. Diverter pipe; 3. Diverter block; 4. Connector; 5. Filter cartridge; 6. Slot; 7. Slide rod; 8. Connecting block; 9. Connecting rod; 10. Top rod; 11. Arc-shaped clamp; 12. Conductivity meter; 13. Ion exchange column; 14. Electrical control unit; 15. Sampling tank. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] like Figure 1-6 As shown, a condenser vacuum leak detection device according to this embodiment includes an instrument cabinet 1. The back of the instrument cabinet 1 is connected to a diversion pipe 2 via a pipe. One end of the diversion pipe 2 is connected to a diversion block 3. The diversion block 3 has an opening on its side and a connector 4 is installed in the opening. The diversion pipe 2 has a number of branch pipes that are the same as the number of connectors 4 and converge at the tail end. Therefore, the end of a single connector 4 is connected to a single pipe in the branch pipe through a pipe to achieve a one-to-one correspondence. A solenoid valve is installed in the middle section of the branch pipe inside the diversion pipe 2. The use of the solenoid valve allows the sample water to pass freely in the pipe and makes the diversion pipe 2 form a buffer zone in the condenser-sampling pump-instrument cabinet 1, ensuring that the connection section between the condenser and the sampling pump frame will not affect the stability inside the condenser due to the frequent opening and closing of the valve body in the sampling pump frame. A filter cartridge 5 is installed in the inner cavity of the connector 4.

[0023] like Figure 6As shown, a groove 6 is provided on the inner side of the connector 4 near the opening of the filter cylinder 5. There are two grooves 6, which are symmetrically arranged on the inner side of the connector 4. A slide rod 7 is installed inside the groove 6. A connecting block 8 is slidably installed on the outer surface of the slide rod 7. A connecting rod 9 is rotatably installed on the side of the connecting block 8. There are two connecting rods 9, which are symmetrically distributed on the side of the connecting block 8. A top rod 10 is hinged to one end of the connecting rod 9. As can be seen from the figure, a groove corresponding to the position of the top rod 10 is provided inside the groove 6. The top rod 10 is placed in the groove and there is a gap between it and the side of the groove. There is an angle between the connecting rod 9 and the top rod 10. As the connecting rod 9 moves, the top rod 10 will abut against the side of the groove. An arc-shaped clamping block 11 is connected to the bottom of the connecting block 8 by a spring. A spring is installed on the side of the connecting block 8 and sleeved on the outer surface of the slide rod 7. As the connecting block 8 moves, the spring will be compressed, and the elastic force will make the top rod 10 press tightly against the side of the groove. At the same time, the arc-shaped clamping block 11 can also press tightly against the surface of the pipe. The filter cartridge 5 has openings on its side that match the number and position of the arc-shaped clamps 11.

[0024] like Figure 1 As shown, the instrument cabinet 1 is equipped with a conductivity meter 12, an ion exchange column 13, an electrical control unit 14, and a sampling tank 15. The above components are conventional components assembled in existing detection devices. One end of the connector 4 is connected to the sampling pump frame, which consists of a vacuum pump, a solenoid valve, a check valve, and a vacuum gauge, through a pipe. The sampling pump frame also uses existing conventional equipment. The other end of the connector 4 is connected to the shunt pipe 2 through a pipe.

[0025] The working principle of this embodiment is as follows: During use, the condenser piping is segmented according to the condenser piping distribution and connected to the piping on the sampling pump frame. The vacuum pump, various valves, and vacuum gauges installed on the sampling pump frame perform sampling and monitoring of the condenser. After sampling by the sampling pump frame, the condensate feedwater enters the corresponding connector 4 along the pipe, is filtered by the filter cartridge 5, and then enters the corresponding branch pipe in the branch pipe 2. Since solenoid valves are installed on the branch pipes, the segmented entry of the sampling water is achieved by controlling the operation of the solenoid valves. Therefore, because the sampling water is allowed to enter in a controllable segmented manner, when determining where a leak occurs in the condenser piping, the leaking pipe can be identified in a relatively short number of steps by grouping the pipe segments. For example, the condenser... The pipes are grouped in pairs. The first measurement is performed on all pipes in the group. If the measurement result shows a leak, any single pipe in the group can be measured to identify the leaking pipe. When the sampled water is tested in the middle of the instrument cabinet 1, the sampled water passes through the ion exchange column 13 to remove impurities. The hydrogen conductivity data of the deionized sample water is collected in real time using the conductivity meter 12 to obtain real-time hydrogen conductivity data. The real-time hydrogen conductivity data is compared with the preset hydrogen conductivity threshold. If the real-time hydrogen conductivity data is greater than or equal to the preset hydrogen conductivity threshold, the water quality of the condensate to be monitored is judged to be abnormal; if the real-time hydrogen conductivity data is less than the preset hydrogen conductivity threshold, the water quality of the condensate to be monitored is judged to be normal. At the same time, the sampling tank 15 also supports manual sampling for testing.

[0026] In addition, a slot 6 is provided in the connector 4 and an assembly is installed in the slot 6. When assembling and connecting the pipe, after the pipe is connected to the connector 4, the connecting block 8 will be pushed upward. As the connecting block 8 moves, the connecting rod 9 will be driven to rotate, so that the top rod 10 will abut against the inside of the slot 6 and compress the spring. The pipe will be clamped by the elastic force of the spring.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A condenser vacuum leakage detection apparatus comprising an instrument cabinet (1), characterised in that: The back of the instrument cabinet (1) is communicated with a shunt pipe (2) through a pipeline, one end of the shunt pipe (2) is communicated with a shunt block (3), the side of the shunt block (3) is opened and a connector (4) is installed in the hole, the inner cavity of the connector (4) is installed with a filter cartridge (5), the inner side of the connector (4) is opened with a clamping groove (6) near the opening of the filter cartridge (5), the inside of the clamping groove (6) is installed with a sliding rod (7), the outer surface of the sliding rod (7) is slidingly installed with a connecting block (8), the side of the connecting block (8) is pivotally installed with a connecting rod (9), one end of the connecting rod (9) is hingedly connected with a top rod (10), the bottom of the connecting block (8) is connected with an arc-shaped clamping block (11) through a spring, the inside of the instrument cabinet (1) is provided with a conductivity meter (12), an ion exchange column (13), an electric control unit (14) and a sampling groove (15).

2. A condenser vacuum leak detection apparatus as defined in claim 1, wherein: The inside of the shunt pipe (2) is provided with a bifurcated pipeline with the same number of bifurcations as the number of connectors (4) and converging at the tail end, and the middle section of the bifurcated pipeline in the shunt pipe (2) is installed with a solenoid valve.

3. A condenser vacuum leak detection apparatus as set forth in claim 1, wherein: The side of the filter cartridge (5) is opened with openings matching the number and position of the arc-shaped clamping blocks (11).

4. A condenser vacuum leak detection apparatus as set forth in claim 1, wherein: The number of the clamping grooves (6) is two and is opened in the inner side of the connector (4) in a symmetrical form.

5. A condenser vacuum leak detection apparatus as set forth in claim 1, wherein: The number of the connecting rods (9) is two and is symmetrically distributed on the side of the connecting block (8), and the side of the connecting block (8) is installed with a spring sleeved on the outer surface of the sliding rod (7).

6. A condenser vacuum leak detection apparatus as set forth in claim 1, wherein: One end of the connector (4) is communicated with a sampling pump frame composed of a vacuum pump, a solenoid valve, a one-way valve and a vacuum gauge through a pipeline, and the other end of the connector (4) is communicated with the shunt pipe (2) through a pipeline.

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