Intelligent pressure control device for water supply network pressure test

Abstract

The utility model relates to water supply pipe pressure test technical field provides a kind of intelligent pressure control device for water supply pipe network pressure test, including box, the top of the box is provided with cover, and the one end of cover top is provided with pump body, and the one end of pump body is connected with water outlet pipe, and the other end of pump body extends to the inside of box through cover, and the one end of water outlet pipe is connected with to be measured pipeline, the central part of cover top is provided with pressure control mechanism. The utility model is provided with pressure control mechanism, when pressure is close to target value, baffle rotation reduces the area of flow passage, and pump body speed is reduced simultaneously, so as to reduce water injection flow, avoid pressure sharp rise to exceed test threshold, if pressure drops due to pipe network slight leakage etc. in pressure stabilizing stage, can increase flow pressure compensation by adjusting the area of flow passage and improving pump body speed, ensure that pressure is stable in specified range when pressure testing, greatly reduce the error of artificial pressure control.

Description

Technical Field

[0001] This utility model relates to the field of water supply pipe pressure testing technology, and in particular to an intelligent pressure control device for water supply network pressure testing. Background Technology

[0002] Pressure testing of water supply networks is a core part of the final acceptance of water supply projects. It is a mandatory acceptance test that uses artificial pressure to test the pressure resistance and sealing performance of the network. The purpose is to ensure that the network will not burst or leak after it is put into use, thus ensuring a safe and stable water supply.

[0003] For example, a water supply pipeline pressure testing device for supervision disclosed in patent number CN213068506U is equipped with a box and a pump. During testing, the pump and the test pipeline are connected by a connecting pipe, and water in the box is injected into the test pipeline. A pressure gauge is fixedly connected to the outer surface of the outlet pipe to test the pressure of the water supply pipeline. However, the pressure rise of this device relies entirely on manual operation of the pump and cannot be automatically adjusted according to changes in the pipeline pressure, making it difficult to maintain a stable test pressure. Therefore, an intelligent pressure control device for water supply pipeline pressure testing is needed. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent pressure control device for water supply network pressure testing, in order to solve the problem that existing pressure application devices are not conducive to intelligent control.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an intelligent pressure control device for water supply network pressure testing, including a housing; The top of the housing is provided with a cover, and a pump body is provided at one end of the top of the cover. One end of the pump body is connected to a water outlet pipe, and the other end of the pump body extends through the cover into the interior of the housing. One end of the water outlet pipe is connected to the pipeline to be tested. A pressure control mechanism is provided in the center of the top of the cover, and the pressure control mechanism includes a flow regulating component located in the middle section of the water outlet pipe. The center of the flow regulating component is connected to the water outlet pipe through a flow port, and baffles are evenly provided on the flow regulating component outside the flow port through a rotating shaft. One end of each baffle is provided with teeth. A rotating ring is provided on one side of the flow regulating component, and internal teeth that mesh with the teeth are evenly distributed on the inner side of the rotating ring. The pressure control mechanism also includes a pressure sensor located above the end of the outlet pipe near the pipeline to be tested.

[0006] Preferably, one side of the rotating ring is provided with an external toothed component, and one side of the external toothed component is meshed with a gear. A micro motor is fixed to the top of the cover, and the output end of the micro motor is connected to the gear through a roller.

[0007] Preferably, a controller is provided at the center of one side of the housing, the output end of the pressure sensor is electrically connected to the controller, and the output end of the controller is electrically connected to the pump body and the micro motor respectively.

[0008] Preferably, a connector is provided on the side of the housing near the pipeline to be tested, and a docking channel is provided on the top of the connector. One end of the water outlet pipe and one end of the pipeline to be tested pass through the docking channel and are connected.

[0009] Preferably, the bottom of the docking channel is provided with an arc-shaped groove, the top of the connector passes vertically through the screw, and the bottom of the screw is provided with a pressure block.

[0010] Preferably, a filter screen is provided on one side of the box body, and the filter screen is made of activated carbon.

[0011] Preferably, both ends of the housing are provided with sliding grooves, both ends of the filter screen are provided with sliding rails that are slidably connected to the sliding grooves, and the sliding rails are made of iron material. A magnet is provided at the bottom of each sliding groove.

[0012] The present invention provides an intelligent pressure control device for pressure testing of water supply networks, the advantages of which are: The system comprises a housing, a cover, a pump body, a water outlet pipe, a test pipeline, and a pressure control mechanism. The pressure control mechanism includes a flow regulator, a pressure sensor, a controller, a flow port, a baffle plate, a micro motor, gears, external gears, internal gears, a rotating ring, and teeth. One end of the pump body is connected to the test pipeline via the water outlet pipe, and the other end is inserted into the housing. The flow regulator is located in the middle section of the water outlet pipe, and the pressure sensor is located at the end of the water outlet pipe near the test pipeline. During pressure testing, the pump body operates, injecting water from the housing into the test pipeline. The micro motor drives the gears to rotate, which in turn drives the rotating ring to rotate through meshing with the external gears on one side of the rotating ring. This, in turn, causes the internal gears on the inner side of the rotating ring to rotate. Because the internal gears mesh with… The teeth at one end of the baffle mesh, allowing the baffle to rotate at a certain angle to open and close the flow port. The pressure sensor can capture the pressure data in the pipeline under test in real time and feed it back to the controller. When the pressure approaches the target value, the controller can instruct the micro motor to drive the relevant components to rotate the baffle to reduce the flow port area and reduce the pump speed, thereby reducing the water injection flow rate and preventing the pressure from rising suddenly and exceeding the test threshold. If the pressure drops during the pressure stabilization phase due to slight leakage in the pipeline, the flow port area can be increased while the pump speed is increased to increase the flow rate and compensate for the pressure, ensuring that the pressure is stable within the specified range during the pressure test. This significantly reduces the error of manual pressure control and makes the strength and tightness test results more reliable. Furthermore, a connector is provided on one side of the housing, with a docking channel at the top. One end of the water outlet pipe and the pipe to be tested pass through the docking channel and are connected. An arc-shaped groove is provided at the bottom of the docking channel to support the bottom of the water outlet pipe and the pipe to be tested. A screw rod passes vertically through the top of the connector, and a pressure block is provided at the bottom of the screw rod. When the screw rod is turned, the screw rod drives the pressure block to move downward. The pressure block can directly press the joint between the water outlet pipe and the pipe to be tested, so that the interface of the two pipes fits tightly. During the pressure test, the pressing action can offset part of the water pressure thrust, preventing the interface from separating due to excessive force. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the pressure control mechanism of this utility model; Figure 3 This is a three-dimensional structural diagram of the baffle plate of this utility model; Figure 4 This is a three-dimensional structural diagram of the connector of this utility model; Figure 5 This is a three-dimensional top view cross-sectional structural diagram of the box body of this utility model; Figure 6 This is a three-dimensional bottom view of the filter structure of this utility model.

[0014] The following are the annotations in the diagram: 1. Housing; 2. Cover; 3. Connector; 4. Pump body; 5. Outlet pipe; 6. Pressure control mechanism; 601. Flow regulator; 602. Flow port; 603. Baffle; 604. Gear; 605. Micro motor; 606. Gear teeth; 607. Internal gear; 608. Rotary ring; 609. External gear; 6010. Pressure sensor; 6011. Controller; 7. Pipeline under test; 8. Arc groove; 9. Pressure block; 10. Connecting channel; 11. Screw; 12. Slide groove; 13. Filter screen; 14. Slide rail; 15. Magnet block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-6 The present invention provides an intelligent pressure control device for water supply network pressure testing, comprising a housing 1; Please see Figure 1, Figure 4-6 The top of the box 1 is provided with a cover 2, and a pump body 4 is provided at one end of the top of the cover 2. One end of the pump body 4 is connected to a water outlet pipe 5, and the other end of the pump body 4 extends through the cover 2 into the inside of the box 1. A filter screen 13 is provided on one side inside the box 1. The filter screen 13 is made of activated carbon. Both ends of the inside of the box 1 are provided with a sliding groove 12. Both ends of the filter screen 13 are provided with a sliding rail 14 that slides and connects to the sliding groove 12. The sliding rail 14 is made of iron. A magnet block 15 is provided at the bottom of the sliding groove 12. One end of the water outlet pipe 5 is connected to the pipeline to be tested 7. A connector 3 is provided on the side of the housing 1 near the pipeline 7 to be tested, and a docking channel 10 is provided on the top of the connector 3. One end of the water outlet pipe 5 and the pipeline 7 to be tested both pass through the docking channel 10 and are connected. An arc groove 8 is provided at the bottom of the docking channel 10. The top of the connector 3 passes vertically through the screw 11, and a pressure block 9 is provided at the bottom of the screw 11. First, the activated carbon filter screen 13 is slid into the pre-set grooves 12 at both ends of the box body 1 through the iron slide rails 14 at both ends until the slide rails 14 are attracted and fixed to the magnets 15 at the bottom of the grooves 12, thus achieving stable installation of the filter screen 13. Then, sufficient test water is injected into the box body 1. When the water flows through the filter screen 13, the mud, sand and impurities in the water are effectively filtered, preventing impurities from entering the pump body 4 and the test pipeline 7, causing component wear or pipeline blockage, ensuring a smooth test process and extending the service life of the device. Next, the end of the outlet pipe 5 away from the pump body 4 and the end of the pipe to be tested 7 are inserted together into the docking channel 10 opened on the top of the connector 3 on one side of the box body 1, so that the interface of the two pipes is precisely connected. At this time, the arc groove 8 at the bottom of the docking channel 10 fits against the outer wall of the pipe to form a stable support, forcing the two pipes to keep in a coaxial state, avoiding the interface from not sealing properly due to pipe misalignment. Then, manually tighten the screw 11 that passes vertically through the top of the connector 3. The screw 11 drives the pressure block 9 at its bottom to move downward until the pressure block 9 is tightly pressed against the joint of the two pipes. By applying a uniform pre-tightening force, the interface is tightly fitted, effectively offsetting the axial thrust generated by the high-pressure water flow during the subsequent pressure test, preventing the interface from loosening and leaking. Please see Figure 1-3 A pressure control mechanism 6 is provided at the center of the top of the cover 2. The pressure control mechanism 6 includes a flow regulating component 601 located in the middle section of the water outlet pipe 5. The center of the flow regulating component 601 is connected to the water outlet pipe 5 through a flow port 602. Baffles 603 are evenly provided on the flow regulating component 601 outside the flow port 602 via rotating shafts. One end of each baffle 603 is provided with teeth 606. A rotating ring 608 is provided on one side of the flow regulating component 601. Internal teeth 607 that mesh with the teeth 606 are evenly distributed on the inner side of the rotating ring 608. The pressure control mechanism 6 also includes a pressure sensor 6010 located above the end of the outlet pipe 5 near the test pipe 7. An external gear 609 is provided on one side of the rotating ring 608, and a gear 604 meshes on one side of the external gear 609. A micro motor 605 is fixed on the top of the cover 2, and the output end of the micro motor 605 is connected to the gear 604 through a roller. A controller 6011 is located at the center of one side of the box 1. The output end of the pressure sensor 6010 is electrically connected to the controller 6011, and the output end of the controller 6011 is electrically connected to the pump body 4 and the micro motor 605 respectively. Then, the pump 4 installed at one end of the top of the cover 2 is started. The pump 4 pressurizes and extracts the filtered water in the tank 1, and injects it into the test pipeline 7 through the outlet pipe 5. The other end of the test pipeline 7 is sealed with a flange blind plate before the test. During the pressure test, the pressure sensor 6010, located above the end of the outlet pipe 5 near the test pipeline 7, continuously collects the real-time pressure data in the test pipeline 7 and transmits the data in real time to the controller 6011 located in the center of one side of the tank 1. After receiving the data, the controller 6011 compares and analyzes it with the preset test pressure threshold. When the detected pressure value is close to the target pressure, the controller 6011 simultaneously issues a control command, on the one hand instructing the micro motor 605 to start, and on the other hand... The output end of the motor 605 drives the gear 604 to rotate. Through the meshing transmission between the gear 604 and the external gear 609 on one side of the rotating ring 608, the rotating ring 608 is driven to rotate, which in turn drives the internal gear 607 evenly distributed on the inner side of the rotating ring 608 to rotate synchronously. Since the internal gear 607 meshes with the teeth 606 at one end of the baffle 603 set on the flow regulating component 601 through the rotating shaft, the baffle 603 rotates accordingly and reduces the flow area of ​​the flow port 602, limiting the water injection flow. On the other hand, the controller 6011 instructs the pump body 4 to reduce the speed, further reducing the water injection volume per unit time. Through the dual control mode of adjusting the opening of the flow port 602 and controlling the speed of the pump body 4, the pressure rises suddenly and exceeds the test threshold. When the pressure test enters the pressure stabilization stage, if the pressure in the pipeline under test 7 drops due to minor leakage or temperature changes, the pressure sensor 6010 quickly captures the pressure fluctuation signal and feeds it back to the controller 6011. The controller 6011 immediately instructs the micro motor 605 to reverse, driving the baffle 603 to rotate and increase the flow area of ​​the flow port 602. At the same time, it instructs the pump body 4 to increase its speed and increase the water injection flow rate, achieving precise pressure replenishment and ensuring that the pressure in the pipeline under test 7 remains stable within the specified fluctuation range. The entire pressure test process does not require full-time human supervision. Through the coordinated operation of the various components of the pressure control mechanism 6 and the intelligent regulation of the controller 6011, the error of human operation is greatly reduced, and the efficiency and safety of the pressure test operation are improved.

[0017] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent pressure control device for pressure testing of water supply networks, comprising a housing (1); Its features are: The top of the housing (1) is provided with a cover (2), and a pump body (4) is provided at one end of the top of the cover (2). One end of the pump body (4) is connected to a water outlet pipe (5), and the other end of the pump body (4) extends through the cover (2) into the housing (1). One end of the water outlet pipe (5) is connected to the pipeline to be tested (7). A pressure control mechanism (6) is provided at the center of the top of the cover (2), and the pressure control mechanism (6) includes a flow regulator (601) located in the middle section of the water outlet pipe (5). The flow regulating component (601) is connected to the water outlet pipe (5) through the flow port (602) in the center. Baffles (603) are evenly arranged on the flow regulating component (601) outside the flow port (602) through the rotating shaft. One end of the baffles (603) is provided with teeth (606). A rotating ring (608) is provided on one side of the flow regulating component (601). The inner side of the rotating ring (608) is evenly distributed with internal teeth (607) that mesh with the teeth (606). The pressure control mechanism (6) also includes a pressure sensor (6010) located above the end of the outlet pipe (5) near the test pipe (7).

2. The intelligent pressure control device for water supply network pressure testing according to claim 1, characterized in that: The rotating ring (608) has an external gear (609) on one side, and a gear (604) meshes with one side of the external gear (609). A micro motor (605) is fixed on the top of the cover (2), and the output end of the micro motor (605) is connected to the gear (604) through a roller.

3. The intelligent pressure control device for water supply network pressure testing according to claim 2, characterized in that: A controller (6011) is provided at the center of one side of the housing (1). The output end of the pressure sensor (6010) is electrically connected to the controller (6011). The output end of the controller (6011) is electrically connected to the pump body (4) and the micro motor (605) respectively.

4. The intelligent pressure control device for water supply network pressure testing according to claim 1, characterized in that: The box (1) has a connector (3) on the side near the pipeline (7) to be tested, and the top of the connector (3) has a docking channel (10). One end of the water outlet pipe (5) and the pipeline (7) to be tested both pass through the docking channel (10) and are connected.

5. The intelligent pressure control device for water supply network pressure testing according to claim 4, characterized in that: An arc-shaped groove (8) is provided at the bottom of the docking channel (10), the top of the connector (3) passes vertically through the screw (11), and a pressure block (9) is provided at the bottom of the screw (11).

6. The intelligent pressure control device for water supply network pressure testing according to claim 1, characterized in that: A filter screen (13) is provided on one side inside the box (1), and the filter screen (13) is made of activated carbon.

7. The intelligent pressure control device for water supply network pressure testing according to claim 6, characterized in that: The box (1) has a sliding groove (12) at both ends, and the filter screen (13) has a sliding rail (14) at both ends that is slidably connected to the sliding groove (12). The sliding rail (14) is made of iron, and the bottom of the sliding groove (12) is provided with a magnet (15).

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