CAFS cold spray test liquid discharge system and control method thereof

Abstract

The invention discloses a CAFS cold spray test liquid drainage system and a control method thereof, and belongs to the technical field of liquid drainage. The system comprises an air and liquid spraying module installed in front of a converter transformer, a baffle module installed on the front side edge of the converter transformer, a liquid discharging module and a CAFS module which are installed on a converter transformer square, and a pneumatic control module. The air and liquid spraying module is connected with the CAFS module and the pneumatic control module, adjusts the air and liquid spraying angle according to an angle control instruction of the pneumatic control module, and sprays foam waste liquid of a cold spraying test to the liquid discharging module through the baffle module according to an air and liquid control instruction of the CAFS module; the liquid discharging module is connected with the water collecting tank and is used for discharging foam waste liquid of the cold spraying test to the water collecting tank. The foam waste liquid of the CAFS cold spraying test can be mechanically and autonomously treated by utilizing a pure gas and pure liquid mode of the CAFS module, and the foam waste liquid can be discharged through cooperation of gas spraying and liquid spraying due to the fact that the foam volume in the foam waste liquid is larger, so that the water consumption is reduced.

Description

Technical Field

[0001] This invention relates to the field of drainage technology, and in particular to a CAFS cold spray test drainage system and its control method. Background Technology

[0002] Compressed Air Foam System (CAFS) is a new and highly efficient fire extinguishing technology. It involves introducing compressed air into a mixture of foam concentrate and water, creating a fine, uniform, stable, and non-fragile foam covering that adheres to the surface of the burning material and penetrates into its interior, effectively isolating oxygen and cooling the flames for rapid fire suppression. Currently, CAFS is increasingly being used in power grid systems as an effective means of fire suppression in converter transformers.

[0003] After the converter station is equipped with CAFS, it needs to conduct cold spray tests using fire monitors and sprinkler pipes. The compressed air foam mixture used in the test overflows into the converter transformer square and surrounding land, which can easily pollute the water and soil if not treated in time. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a CAFS cold spray test liquid drainage system and its control method. By utilizing the pure gas and pure liquid modes of the CAFS module, it can mechanically and autonomously process the foam waste liquid of the CAFS cold spray test. Since the foam volume in the foam waste liquid is larger, the foam waste liquid can be discharged through the coordinated jet spraying and liquid spraying, reducing water consumption. It is highly targeted at foam waste liquid.

[0005] To achieve the above objectives, the present invention is implemented using the following technical solution: This invention provides a CAFS cold spray test drainage system, including a jet spray module installed in front of the converter transformer, a baffle module installed on the side in front of the converter transformer, a drainage module installed on the converter transformer square, a CAFS module, and a pneumatic control module. The jet spraying module is connected to the CAFS module and the pneumatic control module respectively. The jet spraying module adjusts the jet spraying angle according to the angle control command of the pneumatic control module, and sprays the foam waste liquid of the cold spray test through the baffle module to the drain module according to the gas-liquid control command of the CAFS module. The drainage module is connected to the water collection tank and is used to drain the foam waste liquid from the cold spray test into the water collection tank.

[0006] This invention utilizes the pure gas and pure liquid modes of the CAFS module to design a liquid discharge system in the converter transformer area, which coordinates a jet spray module, a baffle module, a CAFS module, a pneumatic control module, and a liquid discharge module. This system can mechanically and autonomously process the foam waste liquid from the CAFS cold spray test, and the baffle module can discharge all the foam waste liquid into the collection tank.

[0007] Optionally, the CAFS module is connected to the jet / liquid injection module via a gas pipeline and / or a water pipeline, wherein the gas pipeline is equipped with a gas valve and the water pipeline is equipped with a water valve. The CAFS module is also connected to a fire monitor.

[0008] In this invention, both the gas pipeline and the water pipeline are branches of the fire monitor network. The gas valve and the water valve are located before the fire monitor selector valve. The main function of the CAFS module is to precisely control the fire monitor and to start or stop the fire monitor according to the gas and liquid control signals.

[0009] Optionally, the drainage module includes an open ditch at one end and a drainage well located at the open end of the open ditch; The drainage well is connected to the water collection tank via a drainage branch.

[0010] Optionally, the jetting module includes a lightweight tube and a nozzle; The lightweight tube is installed below the cover plate by a fastener, and the nozzles are evenly installed on the lightweight tube.

[0011] Optionally, the lightweight tube has connection holes at both ends, through which it is connected to the CAFS module.

[0012] Optionally, the two ends of the cover plate are equipped with bearing seats for supporting the jetting and liquid spraying module via a first pin. A bracket is also installed below the cover plate, and a cylinder is installed inside the bracket.

[0013] Optionally, the included angle between the cover plate and the nozzle is a preset angle, and the nozzle is parallel to the ground of the converter square.

[0014] Optionally, the baffle module includes a baffle body perpendicular to the ground of the converter transformer plaza and a tie rod mounted on the baffle body; Thin plates are movably connected to both ends of the baffle body via a second pin.

[0015] Optionally, the thin plate is provided with a connector, and the thin plate is connected to or fixed to the top of the baffle body with other baffle modules through the connector. The two adjacent thin plates are tightly fitted to prevent the foam waste liquid of the CAFS cold spray test from being discharged outside the collection tank.

[0016] On the other hand, the present invention provides a control method for the CAFS cold spray test drainage system described in the first aspect, comprising: The jet spray module and the baffle module are installed vertically and attached together. The jet and liquid injection angle of the jet and liquid injection module is adjusted according to the angle control command of the pneumatic control module; The CAFS module starts the pure gas mode, and the jet spray module sprays air to wash the foam in the foam waste liquid of the cold spray test through the baffle module to the drain module. The CAFS module starts the pure liquid mode, and the jet spraying module sprays liquid to wash the waste liquid in the foam waste liquid of the cold spray test through the baffle module to the drain module. The drainage module discharges the foam waste liquid from the cold spray test into the collection tank.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: This invention utilizes the pure gas and pure liquid modes of the CAFS module to design a drainage system in the converter transformer plaza, which coordinates a jet spraying module, a baffle module, a CAFS module, a pneumatic control module, and a drainage module. This system can mechanically and autonomously process foam waste liquid from CAFS cold spraying experiments. Because the foam in the waste liquid has a larger volume, it can be discharged through the combined jet spraying and liquid spraying, reducing water consumption. It is highly targeted at foam waste liquid, and the baffle module can discharge all the foam waste liquid to the collection tank, solving the pain points of laborious and time-consuming manual treatment that pollutes water and soil. The entire drainage system has the advantages of fast response speed, low overall cost, and reduced environmental pollution. Attached Figure Description

[0018] Figure 1 The diagram shown is a structural schematic of the CAFS cold spray test drainage system of the present invention in one embodiment; Figure 2 The diagram shown is a structural schematic of the jet injection module of the present invention in one embodiment; Figure 3 The diagram shown is a structural schematic of the baffle module of the present invention in one embodiment; In the diagram: 13. Air jet / liquid jet module; 14. Side baffle module; 15. CAFS module; 16. Air valve; 17. Water valve; 18. Air pipeline; 19. Water pipeline; 20. Open ditch; 21. Drainage well; 22. Drainage branch; 23. Bearing seat; 24. First pin; 25. Lightweight pipe; 26. Nozzle; 27. Cylinder; 28. Bracket; 29. ​​Fixture; 30. Baffle body; 31. Second pin; 32. Tie rod; 34. Thin plate; 35. Connector; 36. Pneumatic control module; 37. Cover plate. Detailed Implementation

[0019] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solution of the present invention, rather than limitations thereof. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0020] The term "or / and" simply describes the relationship between related objects, indicating that three relationships can exist. For example, A or / and B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0021] Example 1

[0022] like Figure 1 As shown, this embodiment introduces a CAFS cold spray test drainage system. Taking a single converter transformer as an example, it includes a jet spray module 13, a baffle module 14, a CAFS module 15, a gas valve 16, a water valve 17, a gas pipeline 18, a water pipeline 19, an open ditch 20, a drainage well 21, a drainage branch 22, and a pneumatic control module 36.

[0023] The jet injection module 13 is installed in front of the converter transformer, and the baffle module 14 is installed on the side in front of the converter transformer.

[0024] like Figure 2 As shown, the jet injection module 13 includes a bearing seat 23, a first pin 24, a lightweight tube 25, a nozzle 26, a cylinder 27, a bracket 28, a fixing member 29, and a cover plate 37. The lightweight tube 25 is installed below the cover plate 37 via the fixing member 29. The nozzles 26 are evenly installed on the lightweight tube 25. The two ends of the lightweight tube 25 are provided with connection holes. The two ends of the cover plate 37 are equipped with bearing seats 23 for supporting the jet injection module 13 via the first pin 24. A bracket 28 is also installed below the cover plate 37. The cylinder 27 is installed inside the bracket 28. The cover plate 37 and the nozzle 26 are at a certain angle. The nozzle 36 is parallel to the ground of the converter transformer plaza.

[0025] like Figure 3 As shown, the baffle module 14 includes a baffle body 30, a second pin 31, a pull rod 32, a thin plate 34, and a connector 35. The baffle body 30 is perpendicular to the ground of the converter transformer plaza. The pull rod 32 is installed on the top of the baffle body 30 to facilitate lifting the baffle module 14 from horizontal to vertical. The two ends of the baffle body 30 are movably connected to the thin plate 34 through the second pin 31. The thin plate 34 is provided with a connector 35. The thin plate 34 is connected to or fixed to the top of the baffle body 30 through the connector 35 to the thin plate 34 on other baffle modules 14.

[0026] In this embodiment, during drainage, the thin plate 34 is connected to other baffle modules 14 via connectors 35. The thin plates 34 installed on two adjacent baffle modules 14 are close together after unfolding. The two connectors 35 can be connected to each other. During non-drainage, the thin plate 34 is fixed to the top of the baffle body 30 via connectors 35. The top of the baffle body 30 is provided with a device that matches the connectors 35, which will not be described in detail here.

[0027] The pneumatic control module 36 is connected to the jet and liquid injection module 13 and can control the cylinder 27 to drive the cover plate 37 to rotate, thereby rotating the nozzle 26 to be parallel to the ground of the converter square.

[0028] The CAFS module 15 is connected to a fire monitor, which can precisely control the fire monitor and start or stop the fire monitor according to the gas and liquid control signal. The CAFS module 15 is connected to the air jet and liquid jet module 13 through the air pipeline 18 and / or the water pipeline 19. The air pipeline 18 and the water pipeline 19 are respectively connected to the connection holes at both ends of the lightweight pipe 25. The air pipeline 18 is equipped with an air valve 16, and the water pipeline 19 is equipped with a water valve 17.

[0029] In this embodiment, gas pipeline 18 and water pipeline 19 are both branches of the fire monitor network, and gas valve 16 and water valve 17 are located before the fire monitor selector valve.

[0030] The drainage well 21 is located at one end of the open ditch 20, and the drainage well 21 is connected to the water collection tank through the drainage branch 22.

[0031] After the foam waste liquid from the CAFS cold spray test is rinsed by the jet spray module 13, the foam waste liquid can be completely discharged into the collection pool due to the tight fit of the baffle module 14, thus preventing pollution of the land environment.

[0032] In this embodiment, if multiple converter transformers are subjected to cold spray testing, multiple CAFS cold spray test drainage systems are set up, or multiple jet spray modules and corresponding baffle modules and drainage modules are set up, and the CAFS module is connected to multiple jet spray modules respectively, saving the use of CAFS modules.

[0033] Example 2

[0034] Based on Example 1, this example introduces a control method for a CAFS cold spray test drainage system, including: Step 1: Before conducting the CAFS cold spray test, use the pull rod 32 to turn the baffle module 14 from the horizontal direction to the vertical direction so that the baffle module 14 is perpendicular to the jet spray module 13. Unfold the thin plate 34, and connect and fix the thin plates 34 with close edges between two adjacent baffle modules 14 with connectors 35 to prevent the foam waste liquid of the cold spray test from being discharged into the open ditch.

[0035] Step 2: After the CAFS cold spray test, the pneumatic control module 36 is used to control the cylinder 27 to lift up, thereby driving the cover plate 37 to rotate. When the nozzle 26 is parallel to the ground of the converter square, the cylinder 27 stops moving.

[0036] Step 3: Open the gas valve 16 and start the pure gas mode of CAFS module 15 to blow the foam into the open ditch 20; then open the water valve 17 and start the pure liquid mode of CAFS module 15 to flush the remaining residual liquid on the converter transformer square into the open ditch 20. In this embodiment, the order of the pure gas mode and the pure liquid mode of CAFS module 15 is used according to the actual situation. However, since the foam volume in the foam waste liquid is larger, the foam waste liquid can be discharged in a coordinated manner by spraying air first and then spraying liquid, which reduces the water consumption and is highly targeted to foam waste liquid.

[0037] Step 4: The mixed foam waste liquid from Step 3 flows through Drainage Well 21 and Drainage Branch 22 to the collection tank.

[0038] Step 5: After the liquid is drained, close the gas valve 16 and the water valve 17, use the pneumatic control module 36 to control the cylinder 27 to level it, retract the thin plate 34 and level the baffle module 14, thereby completing the liquid draining work of the CAFS cold spray test.

[0039] This embodiment utilizes the pure gas and pure liquid modes of the CAFS module to design a drainage system in the converter transformer plaza. This system consists of a jet spraying module, a baffle module, a CAFS module, a pneumatic control module, and a drainage module working in tandem. It can mechanically and autonomously process foam waste liquid from CAFS cold spraying experiments. It is highly targeted at foam waste liquid, and the baffle module can discharge all foam waste liquid into the collection tank, solving the problems of laborious and time-consuming manual treatment that pollutes water and soil. The entire drainage system has the advantages of fast response speed, low overall cost, and reduced environmental pollution.

[0040] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A CAFS cold spray test drainage system, characterized by, The jet and liquid spraying module (13) is connected with the CAFS module (15) and the pneumatic control module (36), the jet and liquid spraying module (13) adjusts the jet and liquid spraying angle according to the angle control instruction of the pneumatic control module (36), and the foam waste liquid of the cold spraying test is sprayed and washed to the liquid discharge module through the baffle module (14) according to the gas-liquid control instruction of the CAFS module (15). The liquid discharge module is connected with the water collecting pool and is used for discharging the foam waste liquid of the cold spraying test to the water collecting pool. The CAFS module (15) is connected with the jet and liquid spraying module (13) through the gas pipeline (18) or / and the water pipeline (19), the gas pipeline (18) is provided with a gas valve (16), and the water pipeline (19) is provided with a water valve (17).

2. The CAFS cold spray test drainage system of claim 1, wherein, The CAFS module (15) is further connected with a fire monitor. The liquid discharge module comprises an open ditch (20) with one end and a liquid discharge well (21) located at the open end of the open ditch (20).

3. The CAFS cold spray test drainage system of claim 1, wherein, The liquid discharge well (21) is connected with the water collecting pool through a liquid discharge branch (22). The jet and liquid spraying module (13) comprises a light pipe (25) and a nozzle (26).

4. The CAFS cold spray test drainage system of claim 1, wherein, The light pipe (25) is installed below the cover plate (37) through a fixing piece (29), and the nozzle (26) is uniformly installed on the light pipe (25). The light pipe (25) is provided with a connecting hole at two ends, and the connecting hole is connected with the CAFS module (15).

5. The CAFS cold spray test drainage system of claim 4, wherein, The cover plate (37) is provided with a bearing seat (23) for supporting the jet and liquid spraying module (13) at two ends through a first pin shaft (24).

6. The CAFS cold spray test drainage system of claim 4, wherein, A bracket (28) is further installed below the cover plate (37), and a gas cylinder (27) is installed in the bracket (28). The included angle between the cover plate (37) and the nozzle (26) is a preset angle, and the nozzle (26) is parallel to the ground of the converter transformer square.

7. The CAFS cold spray test drainage system of claim 4, wherein, The baffle module (14) comprises a baffle body (30) perpendicular to the ground of the converter transformer square and a pull rod (32) installed on the baffle body (30).

8. The CAFS cold spray test drainage system of claim 1, wherein, The baffle body (30) is movably connected with a thin plate (34) at two ends through a second pin shaft (31). The thin plate (34) is provided with a connecting piece (35), and the thin plate (34) is connected with other baffle modules (14) or fixed on the top of the baffle body (30) through the connecting piece (35).

9. The CAFS cold spray test drainage system of claim 7, wherein, The jet and liquid spraying module (13) and the baffle module (14) are vertically and closely installed; 10. A control method for the CAFS cold spray test drainage system according to any one of claims 1-9, characterized in that, The jet and liquid spraying angle of the jet and liquid spraying module (13) is adjusted according to the angle control instruction of the pneumatic control module (36); The CAFS module (15) starts the pure gas mode, the jet and liquid spraying module (13) sprays gas, and the foam in the foam waste liquid of the cold spraying test is sprayed and washed to the liquid discharge module through the baffle module (14). ​ ​ The CAFS module (15) starts the pure liquid mode, the jet liquid module (13) sprays liquid, and the waste liquid in the foam waste liquid of the cold spray test is sprayed and washed to the liquid discharge module through the baffle module (14); The liquid discharge module discharges the foam waste liquid of the cold spray test to the water collecting pool.

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