Single-liquid pressure-stabilizing grouting equipment

Abstract

The invention discloses single-liquid pressure-stabilizing grouting equipment which mainly solves the technical problem that when existing single-liquid grouting equipment faces high-viscosity epoxy resin, the pressure of a grouting pipeline is large, and the damage risk of the pipeline can be increased. The first grouting equipment comprises a box body, and a diaphragm pump, a pressure gauge and a pressure regulating reflux valve which are arranged in the box body; the grouting equipment can regulate and control the pressure in the output pipeline in real time, and stable low-pressure grouting is achieved. The second grouting equipment comprises a box body, and a gear pump, a check valve, a pressure regulating controller, a pressure switch and a relay which are arranged in the box body, the grouting equipment can regulate and control the pressure in the output pipeline in real time and automatically control starting and stopping of the gear pump according to the slurry pressure, and stable low-pressure grouting is achieved.

Description

Technical Field

[0001] This invention relates to a grouting device, specifically a single-liquid pressure-stabilizing grouting device. Background Technology

[0002] In water conservancy engineering channel construction or other engineering scenarios requiring low-pressure grouting, the industry commonly uses pre-mixed epoxy resin grout as the grouting material. However, existing technologies have drawbacks: when the grouting material is high-viscosity epoxy resin, the grouting pipeline needs to withstand greater pressure, which not only increases the risk of pipeline damage but may also lead to grouting operation interruption, affecting project progress and quality. Summary of the Invention

[0003] The purpose of this invention is to solve the technical problem that existing single-component grouting equipment requires the grouting pipeline to withstand greater pressure when dealing with high-viscosity epoxy resin, which increases the risk of pipeline damage, and to provide a single-component pressure-stabilized grouting equipment.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A single-liquid pressure-stabilizing grouting device, characterized by:

[0006] Includes the housing, as well as the diaphragm pump, pressure gauge, pressure regulating reflux valve and check valve installed inside the housing;

[0007] The side wall of the housing is equipped with a slurry inlet, a slurry outlet, a slurry return port, and a power interface;

[0008] The power supply terminal of the diaphragm pump is electrically connected to an external power supply via a power interface;

[0009] The input end of the diaphragm pump is connected to the slurry inlet through the input pipe. The slurry inlet is connected to the external slurry storage container through the slurry inlet pipe so that the slurry in the slurry storage container can be input through the slurry inlet pipe.

[0010] The output end of the diaphragm pump is connected to the slurry outlet through the output pipe. The slurry outlet is connected to the pre-embedded grouting nozzle at the leak-sealing point through the slurry outlet pipe, so that the pre-embedded grouting nozzle at the leak-sealing point can be grouted through the slurry outlet pipe.

[0011] The check valve, the pressure gauge's detection end, and the pressure regulating reflux valve's input end are sequentially installed on the output pipeline along the slurry conveying direction;

[0012] The pressure gauge is used to detect and display the slurry pressure in the output pipeline in real time;

[0013] The output end of the pressure regulating reflux valve is connected to the slurry reflux port through a reflux pipe. The slurry reflux port is connected to an external slurry storage container through a pressure relief pipe. This allows part of the slurry in the output pipe to be returned to the external slurry storage container through the pressure regulating reflux valve and the pressure relief pipe, thereby controlling the slurry pressure in the output pipe and achieving pressure-stabilized grouting.

[0014] Furthermore, a power switch is installed inside the box;

[0015] The power supply terminal of the diaphragm pump is electrically connected to an external power supply via a power switch and a power interface.

[0016] Furthermore, the pressure gauge has a range of at least 2.5 MPa and an accuracy of less than or equal to 0.1 MPa;

[0017] The diaphragm pump has a power of 132W, is a DC brushless motor pump, and operates at a DC voltage of 24V.

[0018] Furthermore, a visualization window is provided on the cover of the chamber, which at least covers the display interface of the pressure gauge.

[0019] Furthermore, the enclosure is made of stainless steel.

[0020] Meanwhile, the present invention also provides another single-liquid pressure-stabilizing grouting device, which is special in that:

[0021] Includes the housing, as well as the gear pump, pressure regulator, pressure switch, check valve and relay installed inside the housing;

[0022] The side wall of the housing is equipped with a slurry inlet, a slurry outlet, and a power interface;

[0023] The power supply terminals of the gear pump and pressure switch are electrically connected to an external power supply via a power interface.

[0024] The input end of the gear pump is connected to the slurry inlet through the input pipe. The slurry inlet is connected to the external slurry storage container through the slurry inlet pipe so that the slurry in the slurry storage container can be input through the slurry inlet pipe.

[0025] The output end of the gear pump is connected to the slurry outlet through the output pipe. The slurry outlet is connected to the pre-embedded grouting nozzle at the leak-sealing location through the slurry outlet pipe, so that the pre-embedded grouting nozzle at the leak-sealing location can be grouted through the slurry outlet pipe.

[0026] The detection terminals of the check valve and the pressure switch are installed sequentially on the output pipeline. The control terminal of the pressure switch is electrically connected to the control terminal of the gear pump through a relay. The pressure switch is used to detect and display the slurry pressure in the output pipeline in real time, and to control the start and stop of the gear pump through the relay when the preset minimum or maximum pressure limit is reached.

[0027] The gear pump's control terminal is electrically connected to the pressure regulator. The pressure regulator controls the slurry pressure in the output pipeline by adjusting the gear pump's rotation speed, thereby achieving stable pressure grouting.

[0028] Furthermore, a power switch is installed inside the box;

[0029] The power supply terminals of the gear pump and pressure switch are connected to an external power supply via a power switch and a power interface, respectively.

[0030] Furthermore, the pressure switch has a range of at least 2.5 MPa and an accuracy of less than or equal to 0.1 MPa;

[0031] The gear pump operates at a DC voltage of 24V.

[0032] Furthermore, a visualization window is provided on the cover of the enclosure, which at least covers the display interface of the pressure switch;

[0033] The voltage regulator is a PWM electronic speed controller.

[0034] Furthermore, the enclosure is made of stainless steel.

[0035] The advantages of this invention compared to the prior art are:

[0036] 1. This invention combines a diaphragm pump, a check valve, a pressure gauge, and a pressure regulating reflux valve. Based on the slurry pressure detected by the pressure gauge in the output pipeline, the pressure regulating reflux valve adjusts the pressure in real time, ensuring that the pressure is always kept within the expected range. At the same time, the check valve prevents slurry backflow, thereby achieving stable low-pressure grouting and avoiding pipeline damage caused by excessive slurry pressure.

[0037] 2. This invention utilizes a combination of a gear pump, a check valve, a PWM electronic speed controller, a pressure switch, and a relay. Based on the slurry pressure detected by the pressure switch in the output pipeline, the PWM electronic speed controller adjusts the speed of the gear pump in real time, thereby regulating the slurry pressure in the output pipeline and ensuring that the pressure remains within the expected range. Furthermore, it automatically controls the start and stop of the gear pump when the detected slurry pressure reaches the minimum or maximum pressure limit. Simultaneously, the check valve prevents slurry backflow, thus achieving stable low-pressure grouting and avoiding pipeline damage caused by excessive slurry pressure.

[0038] 3. The present invention provides a visual window that allows for easy real-time observation of the pressure gauge / pressure switch readings. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention (the diaphragm pump is not shown in the figure).

[0040] Figure 2This is a schematic diagram of the pipeline in Embodiment 1 of the present invention (the arrows in the diagram indicate the direction of slurry delivery).

[0041] Figure 1 and Figure 2 The annotations in the attached figures are explained as follows:

[0042] 01-Slurry storage container;

[0043] 1-Box body, 2-Diaphragm pump, 3-Pressure gauge, 4-Pressure regulating reflux valve, 5-Slurry inlet, 6-Slurry outlet, 7-Slurry reflux port, 8-Power switch, 9-Power interface, 10-Visual window, 11-Check valve.

[0044] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention (the gear pump is not shown in the figure).

[0045] Figure 4 This is a schematic diagram of the pipeline in Embodiment 2 of the present invention (the arrows in the diagram indicate the direction of slurry delivery).

[0046] Figure 3 and Figure 4 The annotations in the attached figures are explained as follows:

[0047] 01-Slurry storage container;

[0048] 1-Box body, 2-Gear pump, 3-Pressure regulator, 4-Pressure switch, 5-Slurry inlet, 6-Slurry outlet, 7-Power switch, 8-Power interface, 9-Visual window, 10-Check valve, 11-Relay. Detailed Implementation

[0049] To make the objectives, advantages and features of the present invention clearer, the single-liquid pressure-stabilizing grouting equipment proposed in this invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] Example 1

[0051] See Figure 1 and Figure 2 This embodiment of a single-liquid pressure-stabilizing grouting device mainly includes a housing 1 and a diaphragm pump 2, a pressure gauge 3, a power switch 8, a pressure regulating return valve 4, and a check valve 11 installed in the housing 1.

[0052] See Figure 1In this embodiment, the housing 1 is made of 304 stainless steel and has a rectangular structure. The upper surface of the housing 1 is open, and a lid is hinged to the opening to facilitate opening when needed and locking when not in use for protection. Preferably, to facilitate direct observation of the pressure gauge 3's display interface, a visualization window 10 is provided on the lid. This visualization window 10 should at least cover the display interface of the pressure gauge 3. In this embodiment, since the pressure gauge 3's display interface is circular, the visualization window 10 is set to be a circular window that matches its size and shape. Of course, in other embodiments of the present invention, the size and shape of the visualization window 10 can be designed according to actual needs.

[0053] See Figure 1 On one side wall of the housing 1, there are slurry inlet 5, slurry outlet 6, slurry return port 7 and power interface 9. In this embodiment, the centers of slurry inlet 5, slurry outlet 6, slurry return port 7 and power interface 9 are arranged along the same straight line, and there are certain intervals between two adjacent slurry ports and between the power interface 9 and its adjacent slurry ports, so as to meet the installation requirements and avoid mutual installation conflicts.

[0054] In this embodiment, the diaphragm pump 2 used has a power of 132W, is a DC brushless motor pump, and operates at 24V. The power supply terminal of the diaphragm pump 2 is electrically connected to an external power supply via a power switch 8 and a power interface 9. In this embodiment, based on the operating voltage of the diaphragm pump 2, the connected power supply voltage is 24V.

[0055] See Figure 1 and Figure 2 The input end of the diaphragm pump 2 is connected to the slurry inlet 5 through the input pipe. The slurry inlet 5 is used to connect to the external slurry storage container 01 through the slurry inlet pipe so as to input the slurry in the slurry storage container 01 through the slurry inlet pipe. The output end of the diaphragm pump 2 is connected to the slurry outlet 6 through the output pipe. The slurry outlet 6 is used to connect to the pre-embedded grouting nozzle at the leak-sealing point through the slurry outlet pipe so as to grout the leak-sealing point through the slurry outlet pipe and the pre-embedded grouting nozzle.

[0056] The check valve 11, the detection end of the pressure gauge 3, and the input end of the pressure regulating reflux valve 4 are sequentially installed on the output pipeline along the slurry conveying direction.

[0057] Among them, the check valve 11 is used to stabilize the pressure and prevent the grout from flowing back, so as to achieve stable low-pressure grouting.

[0058] Pressure gauge 3 is used to detect and display the slurry pressure in the output pipeline in real time. The range of pressure gauge 3 is at least 2.5 MPa and the accuracy is less than or equal to 0.1 MPa.

[0059] The output end of the pressure regulating reflux valve 4 is connected to the slurry reflux port 7 through the reflux pipe. The slurry reflux port 7 is used to connect to the external slurry storage container 01 through the pressure relief pipe, so that part of the slurry in the output pipe can be returned to the external slurry storage container 01 through the pressure regulating reflux valve 4 and the pressure relief pipe, thereby controlling the slurry pressure in the output pipe to stabilize it in a stable grouting working state and realizing pressure-stabilized grouting.

[0060] It should be noted that, in practice, sealing measures such as sealing rings and sealing tape should be used at pipe connections to ensure the airtightness of the pipe connections.

[0061] When using, first mix epoxy resin grout in a mixing tank (i.e., grout storage container 01) according to a certain ratio, then arrange the grouting equipment according to the aforementioned instructions, and finally turn on the power switch 8. The chemical grouting material (grout) is pumped into the pre-embedded grouting nozzle that needs to be plugged through the diaphragm pump 2, which is equipped with a pressure gauge 3 and a pressure regulating return valve 4. The pressure relief pipe of the pressure regulating return valve 4 should also be connected back to the mixing tank. The grouting process also requires grouting one grouting nozzle at a time from one side to the other. The grouting nozzle that has finished grouting needs to be sealed with a screw thread. The current grouting nozzle is filled with grout by observing whether grout comes out of the next grouting nozzle. During the grouting process, the pressure in the output pipeline can be controlled by adjusting the pressure regulating return valve 4 to keep it stable in a working state that allows for smooth grouting.

[0062] Example 2

[0063] See Figure 3 and Figure 4 This embodiment is another single-liquid pressure-stabilized grouting device. The difference from Embodiment 1 is that the speed of the gear pump 2 is controlled by the pressure regulating controller 3 to regulate the grout pressure in the output pipeline. The pressure pressure is detected and displayed by a pressure switch 4 with a pressure display. Simultaneously, the control terminal of the pressure switch 4 is electrically connected to the control terminal of the gear pump 2 via a relay 11. The pressure switch 4 is also used to control the start and stop of the gear pump 2 via the relay 11 when the grout pressure reaches a preset minimum or maximum pressure limit. When grouting is completed and the internal pressure in the gap reaches the minimum / maximum pressure limit, the pressure switch 4 controls the relay 11 via a signal to start / stop the gear pump 2. During this process, the check valve 10 effectively prevents grout backflow, ensuring precise pressure stabilization throughout the grouting process and achieving the best grouting effect. In this embodiment, the pressure regulating controller 3 is preferably a PWM electronic speed controller. With the above settings, there is no need to install a pressure regulating backflow valve or a pressure relief pipe, nor is it necessary to open a grout backflow port, thus achieving the purpose of controlling the grout pressure in the output pipeline.

[0064] The other structures in this embodiment are the same as in Embodiment 1.

[0065] When using, first mix epoxy resin grout in a mixing tank (i.e., grout storage container 01) according to a certain ratio, then arrange the grouting equipment as described above, and finally turn on the power switch 7. The chemical grouting material is pumped into the pre-embedded grouting nozzle that needs to be plugged through the gear pump 2 and the pressure switch 4. The PWM electronic speed controller can directly adjust the motor speed of the gear pump 2 through the knob to adjust the grouting pressure. During the grouting process, grouting is also required from one side to the other, one grouting nozzle at a time. The grouting nozzle that has finished grouting needs to be sealed with a screw thread. The current grouting nozzle is filled with grout by observing whether grout comes out of the next grouting nozzle. During the grouting process, the pressure in the output pipe can be controlled by adjusting the PWM electronic speed controller to keep it stable in a working state that allows for smooth grouting.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present invention.

Claims

1. A single-liquid pressure-stabilizing grouting device, characterized in that: Includes a housing (1), and a diaphragm pump (2), a pressure gauge (3), a pressure regulating reflux valve (4), and a check valve (11) installed inside the housing (1); The side wall of the housing (1) is provided with a slurry inlet (5), a slurry outlet (6), a slurry return port (7), and a power interface (9); The power supply terminal of the diaphragm pump (2) is electrically connected to an external power supply through a power interface (9); The input end of the diaphragm pump (2) is connected to the slurry inlet (5) through the input pipe. The slurry inlet (5) is connected to the external slurry storage container (01) through the slurry inlet pipe so as to input the slurry in the slurry storage container (01) through the slurry inlet pipe. The output end of the diaphragm pump (2) is connected to the slurry outlet (6) through the output pipe. The slurry outlet (6) is connected to the pre-embedded grouting nozzle at the leak-stopping location through the slurry outlet pipe, so as to grout the pre-embedded grouting nozzle at the leak-stopping location through the slurry outlet pipe. The detection end of the check valve (11), the pressure gauge (3), and the input end of the pressure regulating reflux valve (4) are sequentially installed on the output pipeline along the slurry conveying direction; The pressure gauge (3) is used to detect and display the slurry pressure in the output pipeline in real time; The output end of the pressure regulating reflux valve (4) is connected to the slurry reflux port (7) through the reflux pipe. The slurry reflux port (7) is connected to the external slurry storage container (01) through the pressure relief pipe. This allows part of the slurry in the output pipe to be refluxed back to the external slurry storage container (01) through the pressure regulating reflux valve (4) and the pressure relief pipe, thereby controlling the slurry pressure in the output pipe and achieving stable pressure grouting.

2. The single-liquid pressure-stabilizing grouting equipment according to claim 1, characterized in that: A power switch (8) is installed inside the housing (1); The power supply end of the diaphragm pump (2) is connected to an external power supply in sequence through a power switch (8) and a power interface (9).

3. The single-liquid pressure-stabilizing grouting equipment according to claim 2, characterized in that: The pressure gauge (3) has a range of at least 2.5 MPa and an accuracy of less than or equal to 0.1 MPa. The diaphragm pump (2) has a power of 132W, is a DC brushless motor pump, and operates at a DC voltage of 24V.

4. The single-liquid pressure-stabilizing grouting equipment according to any one of claims 1-3, characterized in that: The housing (1) has a visualization window (10) on its lid, which at least covers the display interface of the pressure gauge (3).

5. The single-liquid pressure-stabilizing grouting equipment according to claim 4, characterized in that: The casing (1) is made of stainless steel.

6. A single-liquid pressure-stabilizing grouting device, characterized in that: Includes a housing (1), and a gear pump (2), a pressure regulator (3), a pressure switch (4), a check valve (10), and a relay (11) installed inside the housing (1); The side wall of the housing (1) is provided with a slurry inlet (5), a slurry outlet (6) and a power interface (8); The power supply terminals of the gear pump (2) and pressure switch (4) are electrically connected to an external power supply through a power interface (8); The input end of the gear pump (2) is connected to the slurry inlet (5) through the input pipe. The slurry inlet (5) is connected to the external slurry storage container (01) through the slurry inlet pipe so that the slurry in the slurry storage container (01) can be input through the slurry inlet pipe. The output end of the gear pump (2) is connected to the slurry outlet (6) through the output pipe. The slurry outlet (6) is connected to the pre-embedded grouting nozzle at the leak-stopping location through the slurry outlet pipe, so as to grout the pre-embedded grouting nozzle at the leak-stopping location through the slurry outlet pipe. The detection ends of the check valve (10) and the pressure switch (4) are installed sequentially on the output pipe. The control end of the pressure switch (4) is electrically connected to the control end of the gear pump (2) through the relay (11). The pressure switch (4) is used to detect and display the slurry pressure in the output pipe in real time, and control the start and stop of the gear pump (2) through the relay (11) when the preset minimum or maximum pressure limit is reached. The control end of the gear pump (2) is electrically connected to the pressure regulator (3). The pressure regulator (3) regulates the slurry pressure in the output pipeline by regulating the speed of the gear pump (2), thereby achieving stable pressure grouting.

7. The single-liquid pressure-stabilizing grouting equipment according to claim 6, characterized in that: A power switch (7) is installed inside the housing (1); The power supply terminals of the gear pump (2) and pressure switch (4) are connected to an external power supply via a power switch (7) and a power interface (8) in sequence.

8. The single-liquid pressure-stabilizing grouting equipment according to claim 7, characterized in that: The pressure switch (4) has a range of at least 2.5 MPa and an accuracy of less than or equal to 0.1 MPa. The operating voltage of the gear pump (2) is DC 24V.

9. The single-liquid pressure-stabilizing grouting equipment according to any one of claims 6-8, characterized in that: The box body (1) is provided with a visualization window (9) on the box cover, and the visualization window (9) at least covers the display interface of the pressure switch (4); The voltage regulator (3) is a PWM electronic speed controller.

10. The single-liquid pressure-stabilizing grouting equipment according to claim 9, characterized in that: The casing (1) is made of stainless steel.

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