Grouting and filling integrated hydraulic pump station system and method thereof

Abstract

The invention discloses a grouting and filling integrated hydraulic pump station system and a method thereof.The grouting and filling integrated hydraulic pump station system comprises a suction end, the suction end is provided with a plurality of connectors, each connector is connected with a plurality of sets of hydraulic ends, each hydraulic end comprises a hydraulic cylinder body, a discharging mechanism is arranged at the top of each hydraulic cylinder body, and the power end of each hydraulic end is connected with a double-piston driving mechanism; and each group of piston driving mechanisms of the double-piston driving mechanism is connected with a hydraulic driving unit for driving the pistons to move. The energy of the hydraulic driving mechanism is converted into the energy of a conveying medium through mutual cooperation of the double-piston driving mechanism, the hydraulic end and the hydraulic driving mechanism, and the purposes of medium conveying and high-pressure injection are achieved. The problem that filling and grouting operation and high-low integration are achieved through multiple kinds of equipment is fundamentally solved.

Description

Technical Field

[0001] The present invention relates to the technical field of grouting equipment, and in particular to a grouting and filling integrated hydraulic pump station system and a method thereof. Background Art

[0002] At present, with the development of green mines and the need for environmental protection, the requirements for the management of goaf areas are becoming more and more stringent. It is necessary to fill and grout the goaf areas underground to effectively ensure that ecological and environmental protection issues are properly resolved. At present, the conventional and mature management process is to fill first and then grout solidification. The commonly used equipment is the filling industrial pump for filling conditions and the grouting pump for grouting conditions. One set of operation process requires two sets of equipment to work together, with low coordination and equipment integration, large space occupation, and high equipment installation and use costs. Summary of the invention

[0003] In view of the above-mentioned defects or shortcomings, the object of the present invention is to provide a highly efficient and stable grouting and filling integrated hydraulic pump station system and method thereof.

[0004] To achieve the above purpose, the technical solution of the present invention is:

[0005] A grouting and filling integrated hydraulic pump station system comprises: a suction end, the suction end is provided with multiple connection ports, each connection port is connected to multiple groups of hydraulic ends, the hydraulic end comprises: a hydraulic cylinder body, a discharge mechanism is provided on the top of the hydraulic cylinder body, the power end of the hydraulic end is connected to a dual-piston driving mechanism, and each group of piston driving mechanisms of the dual-piston driving mechanism is connected to a hydraulic driving unit for driving the piston movement.

[0006] The suction end comprises: a suction pipe, the output end of the suction pipe is provided with a plurality of connection ports, each connection port is provided with a suction valve assembly, and a suction hydraulic actuator is installed on the suction valve assembly.

[0007] The output end is provided with three connection ports, and the three connection ports are connected to three hydraulic cylinder bodies. A suction valve assembly is installed at the interface. The opening and closing of the suction valve assembly are controlled by a suction valve hydraulic actuator, and the opening and closing phase difference of the suction valve assembly is 120°.

[0008] The discharge mechanism comprises a discharge valve assembly arranged on the top of the hydraulic cylinder body, a discharge hydraulic actuator is installed on the discharge valve assembly, a discharge port is connected to the discharge valve assembly, and the discharge ports of each hydraulic end are converged and discharged through a discharge pipe.

[0009] The dual-piston drive mechanism includes: a piston cylinder body, a piston rod is arranged in the piston cylinder body, a first piston assembly is arranged at the end of the piston rod, a second piston assembly is arranged in the middle of the piston rod, and the second piston assembly divides the inner cavity of the piston cylinder body into two linearly arranged cooling cavities and a power cavity; a first hydraulic oil inlet and outlet is opened at the top of the cooling cavity, and a second hydraulic oil inlet and outlet is opened at the top of the power cavity.

[0010] The first piston assembly includes: a piston body, a seal is installed on the contact surface between the piston body and the piston cylinder body, and pressure plates for pressing the seal are fixedly installed at both ends of the piston body; the seal includes: a pressure ring, a sealing ring, and a bottom ring mounted on the piston body, and the pressure plate is fixedly installed on the piston body by bolts.

[0011] Therefore, a moisture sensor is installed on the piston cylinder to detect the water content in the hydraulic oil.

[0012] The hydraulic drive unit is connected to the first hydraulic oil inlet and outlet and the second hydraulic oil inlet and outlet respectively. The hydraulic drive unit injects the hydraulic oil in the large oil tank into the power chamber through the second hydraulic oil inlet and outlet, pushing the second piston assembly to move. The second piston assembly drives the first piston assembly to reciprocate through the piston rod to complete the suction and discharge of the medium.

[0013] It also includes a control system unit, which is connected to the suction end, the discharge mechanism, and the double-piston driving mechanism.

[0014] A method based on the above-mentioned grouting and filling integrated hydraulic pump station system comprises:

[0015] The double piston drive mechanism reciprocates through the hydraulic drive unit, sucking the medium into the connection port through the suction end and entering each hydraulic end;

[0016] The double-piston driving mechanism drives the movement, pressurizing and driving the fluid end and the medium in the double-piston driving mechanism;

[0017] Under the action of the hydraulic drive unit, the medium converts the hydraulic drive energy into the transport medium transport energy, so that the medium is output through the discharge mechanism and then transported and injected into the formation at high pressure.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The present invention provides an integrated grouting and filling hydraulic pump station system and method thereof. Through the mutual cooperation of a dual-piston driving mechanism, a hydraulic end and a hydraulic driving mechanism, the energy of the hydraulic driving mechanism is converted into the energy of a conveying medium, thereby achieving the purpose of medium conveying and high-pressure injection. The present invention is provided with two hydraulic driving units to drive the dual-piston driving mechanism, a suction valve hydraulic actuator, and a discharge valve hydraulic actuator to realize the suction and discharge functions of slurry or paste, and has both the filling function of an industrial filling pump and the grouting function of a grouting pump, fundamentally solving the problem of needing a variety of equipment to realize filling and grouting operations, and achieving high and low integration.

[0020] Furthermore, since the design can prevent the medium from contaminating the entire hydraulic oil after the piston seal is damaged, when the medium of the first piston leaks, the moisture sensor detects that the water content in the hydraulic oil exceeds the limit and feeds back to the control system unit. The control system unit controls the entire system to shut down, reports the piston seal damage fault, and performs maintenance, thereby avoiding contamination and loss of the second piston driving hydraulic oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the grouting and filling integrated hydraulic pump station system of the present invention;

[0022] Figure 2 It is a top view of the grouting and filling integrated hydraulic pump station system of the present invention;

[0023] Figure 3 It is a schematic diagram of the partial structure of the first piston assembly of the present invention.

[0024] In the figure, 1 is the suction end; 2 is the suction valve assembly; 3 is the suction valve hydraulic actuator; 4 is the discharge valve hydraulic actuator; 5 is the discharge valve assembly; 6 is the hydraulic cylinder body; 7 is the discharge pipe; 8 is the first piston assembly; 9 is the piston cylinder body; 10 is the moisture sensor; 11 is the second piston assembly; 12 is the piston rod; 13 is the piston rod protective cover; 14 is the hydraulic drive unit; 15 is the control system unit; 16 is the cooling chamber; 17 is the first hydraulic oil inlet and outlet; 18 is the power chamber; 19 is the second hydraulic oil inlet and outlet; 20 is the first oil tank; 21 is the second oil tank; 22 is the double piston drive mechanism; 23 is the discharge mechanism; 8-1 is the pressure plate; 8-2 is the pressure ring; 8-3 is the sealing ring; 8-4 is the bottom ring; 8-5 is the piston body. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0026] like Figure 1 ,2 As shown, the present invention provides an integrated grouting and filling hydraulic pump station system, comprising: a suction end 1, wherein the suction end 1 is provided with a plurality of connection ports, each connection port is connected to a plurality of groups of hydraulic ends, and the hydraulic end comprises: a hydraulic cylinder body 6, wherein a discharge mechanism 23 is provided on the top of the hydraulic cylinder body 6, and the power end of the hydraulic end is connected to a dual-piston driving mechanism 22, and each group of piston driving mechanisms of the dual-piston driving mechanism 22 is connected to a hydraulic driving unit 14 for driving the piston movement.

[0027] Specifically, the suction end 1 includes: a suction pipe, a plurality of connection ports are arranged at the output end of the suction pipe, a suction valve assembly 2 is arranged in each connection port, and a suction hydraulic actuator 3 is installed on the suction valve assembly 2. The suction end 1 is above the liquid cylinder body 6, and the suction valve assembly 2 controls the medium to be sucked from top to bottom, which can avoid the problem of insufficient suction due to insufficient fluidity of the slurry or paste, and there is no need for pressurized feeding.

[0028] Exemplarily, the output end described in the present invention is provided with three connection ports, and the three connection ports are connected to three hydraulic cylinder bodies, and a suction valve assembly is installed at the interface. The opening and closing of the suction valve assembly are controlled by a suction valve hydraulic actuator. The control system unit controls the operation of the three suction valve hydraulic actuators. The three suction valve hydraulic actuators push the suction valve assembly to open and close, and the opening and closing phase difference of the suction valve assembly is 120°.

[0029] In the following embodiments, three interfaces are used as examples to illustrate and demonstrate the structure and working principle of the device of the present invention.

[0030] The present invention comprises a suction pipe 1 , three sets of hydraulic ends, three sets of double-piston driving mechanisms, two sets of hydraulic driving units 14 , and a control system unit 15 .

[0031] Specifically, the discharge mechanism 23 includes: a discharge valve assembly 5 arranged on the top of the hydraulic cylinder body 6, a discharge hydraulic actuator 4 is installed on the discharge valve assembly 5, a discharge port is connected to the discharge valve assembly 5, and the discharge port of each hydraulic end is converged and discharged through a discharge pipe 7.

[0032] The suction and discharge valve assemblies 2 and 5 are precisely opened and closed by suction and discharge hydraulic actuators 3 and 4 to realize the function of a one-way valve, thereby avoiding the failure of the one-way valve suction and discharge valve to close or open due to the spring breakage of a traditional valve.

[0033] In the present invention, the dual-piston drive mechanism 22 includes: a piston cylinder 9, a piston rod 12 is arranged in the piston cylinder 9, a first piston assembly 8 is arranged at the end of the piston rod 12, a second piston assembly 11 is arranged in the middle of the piston rod 12, and the second piston assembly 11 divides the inner cavity of the piston cylinder 9 into two linearly arranged cooling cavities 16 and power chambers 18; a first hydraulic oil inlet and outlet 17 is opened at the top of the cooling chamber 16, and a second hydraulic oil inlet and outlet 19 is opened at the top of the power chamber 18; a piston rod protective cover 13 for protecting the piston rod 12 is installed at the movable end of the piston rod 12.

[0034] like Figure 3 As shown, the first piston assembly 8 includes: a piston body 8-5, a sealing member is installed on the contact surface between the piston body 8-5 and the piston cylinder body 9, and pressure plates 8-1 for pressing the sealing member are fixedly installed at both ends of the piston body 8-5; the sealing member includes: a pressure ring 8-2, a sealing ring 8-3, and a bottom ring 8-4 which are sleeved on the piston body 8-5, and the pressure plate 8-1 is fixedly installed on the piston body 8-5 by bolts 8-6, wherein the pressure ring 8-2, the sealing ring 8-3, and the bottom ring 8-4 are all made of non-metallic materials, and have good sealing performance, which can prevent the medium from entering the cooling cavity; when particulate matter in the medium is included in the slag between the seal and the piston cylinder, the sealing ring is damaged first, thereby reducing the damage to the cooling cylinder body, thereby reducing the loss.

[0035] The hydraulic drive unit 14 is connected to the first hydraulic oil inlet and outlet 17 and the second hydraulic oil inlet and outlet 19 respectively. The hydraulic drive unit 14 injects and discharges the hydraulic oil in the first oil tank 20 into the cooling cavity 16 between the first piston assembly 8 and the second piston assembly 11 through the hydraulic oil inlet and outlet 17 to cool and lubricate the first piston assembly 8 and the second piston assembly 11; the hydraulic drive unit 14 injects the hydraulic oil in the second oil tank 21 into the power cavity 18 through the second hydraulic oil inlet and outlet 19 to push the second piston assembly 11 to move. The second piston assembly 11 drives the first piston assembly 8 to reciprocate through the piston rod 12 to complete the suction and discharge of the medium. It should be noted that the hydraulic pump station is a hydraulic motor driven pump station, and its pump speed is related to the hydraulic motors in the two hydraulic drive units. The drive of the hydraulic motors is driven by an electric motor.

[0036] Furthermore, the present invention also includes: a control system unit 15, which is connected to the suction end 1, the discharge mechanism 23, and the dual-piston drive mechanism 22. A moisture sensor 10 for detecting the water content in the hydraulic oil is installed on the piston cylinder 9. Since the piston rod 12 of the present invention performs linear motion when working, the dual-piston design can prevent the medium from contaminating the entire hydraulic oil after the piston seal is damaged. When the medium of the first piston leaks, the moisture sensor 10 detects that the water content in the hydraulic oil exceeds the limit and feeds back to the control system unit 15. The control system unit 15 controls the entire system to shut down, reports the piston seal damage fault, and performs maintenance, thereby avoiding the contamination and loss of the second piston driving hydraulic oil.

[0037] Furthermore, the present invention also provides a method for a grouting and filling integrated hydraulic pump station system, comprising:

[0038] 1. The dual-piston drive mechanism 22 performs a pulling and pulling motion through the hydraulic drive unit 14, sucking the medium into the connection port through the suction end 1 and into each hydraulic end;

[0039] 2. The dual-piston driving mechanism 22 pushes the movement, pressurizing the fluid end and the medium in the dual-piston driving mechanism 22;

[0040] 3. Under the action of the hydraulic drive unit 14, the medium converts the hydraulic drive energy into the transport medium energy, so that the medium is transported and injected under high pressure after being output through the discharge mechanism 23.

[0041] In the present invention, the energy of the hydraulic drive mechanism is converted into the energy of the conveying medium through the mutual cooperation of the dual-piston drive mechanism, the hydraulic end and the hydraulic drive mechanism, so that the purpose of high-pressure injection can be achieved after the medium is conveyed and discharged.

[0042] It is obvious to those skilled in the art that the above-mentioned specific examples are only preferred embodiments of the present invention. Therefore, the improvements and changes that may be made by those skilled in the art to certain parts of the present invention still embody the principles of the present invention and achieve the purpose of the present invention, and all belong to the scope of protection of the present invention.

Claims

1. A grouting and filling integrated hydraulic pump station system, characterized in that: include: A suction end (1), the suction end (1) being provided with a plurality of connection ports, each connection port being connected to a plurality of groups of hydraulic ends, the hydraulic end comprising: a hydraulic cylinder body (6), a discharge mechanism (23) being provided at the top of the hydraulic cylinder body (6), a power end of the hydraulic end being connected to a dual-piston drive mechanism (22), each group of piston drive mechanisms of the dual-piston drive mechanism (22) being connected to a hydraulic drive unit (14) for driving the piston movement.

2. The grouting and filling integrated hydraulic pump station system according to claim 1, characterized in that: The suction end (1) comprises a suction pipe, wherein the output end of the suction pipe is provided with a plurality of connection ports, each connection port is provided with a suction valve assembly (2), and a suction hydraulic actuator (3) is installed on the suction valve assembly (2).

3. The grouting and filling integrated hydraulic pump station system according to claim 2 is characterized in that: The output end is provided with three connection ports, and the three connection ports are connected to three hydraulic cylinder bodies (6). A suction valve assembly (2) is installed at the interface. The opening and closing of the suction valve assembly are controlled by a suction valve hydraulic actuator (3), and the opening and closing phase difference of the suction valve assembly is 120°.

4. The grouting and filling integrated hydraulic pump station system according to claim 1, characterized in that: The discharge mechanism (23) comprises a discharge valve assembly (5) arranged on the top of the hydraulic cylinder body (6), a discharge hydraulic valve actuator (4) is installed on the discharge valve assembly (5), and a discharge port is connected to the discharge valve assembly (5), and the discharge ports of each hydraulic end are converged and discharged through a discharge pipe (7).

5. The grouting and filling integrated hydraulic pump station system according to claim 1, characterized in that: The dual-piston drive mechanism (22) comprises: a piston cylinder (9), a piston rod (12) is arranged in the piston cylinder (9), a first piston assembly (8) is arranged at the end of the piston rod (12), a second piston assembly (11) is arranged in the middle of the piston rod (12), and the second piston assembly (11) divides the inner cavity of the piston cylinder (9) into two linearly arranged cooling cavities (16) and a power cavity (18); a first hydraulic oil inlet and outlet (17) is opened at the top of the cooling cavity (16), and a second hydraulic oil inlet and outlet (19) is opened at the top of the power cavity (18).

6. The grouting and filling integrated hydraulic pump station system according to claim 4, characterized in that: The first piston assembly (8) comprises: a piston body (8-5); a sealing member is installed on the contact surface between the piston body (8-5) and the piston cylinder body (9); and pressure plates (8-1) for pressing the sealing member are fixedly installed at both ends of the piston body (8-5); the sealing member comprises: a pressure ring (8-2) sleeved on the piston body (8-5), a sealing ring (8-3), and a bottom ring (8-4); and the pressure plate (8-1) is fixedly installed on the piston body (8-5) by bolts (8-6).

7. The grouting and filling integrated hydraulic pump station system according to claim 5, characterized in that: Therefore, a moisture sensor (10) for detecting the water content in the hydraulic oil is installed on the piston cylinder (9).

8. The grouting and filling integrated hydraulic pump station system according to claim 4, characterized in that: The hydraulic drive unit (14) is connected to the first hydraulic oil inlet and outlet (17) and the second hydraulic oil inlet and outlet (19) respectively. The hydraulic drive unit (14) injects the hydraulic oil in the large oil tank (21) into the power chamber (18) through the second hydraulic oil inlet and outlet (19), thereby pushing the second piston assembly (11) to move. The second piston assembly (11) drives the first piston assembly (8) to reciprocate through the piston rod (12), thereby completing the suction and discharge of the medium.

9. The grouting and filling integrated hydraulic pump station system according to claim 1, characterized in that: Also includes: A control system unit (15) is connected to the suction end (1), the discharge mechanism (23), and the dual-piston drive mechanism (22), and drives the suction valve assembly to open and close by controlling the operation of the actuator, with the suction valve assembly opening and closing with a phase difference of 120°.

10. The method of the grouting and filling integrated hydraulic pump station system according to claim 1, characterized in that: include: The dual piston drive mechanism (22) performs reciprocating motion through the hydraulic drive unit (14), sucks the medium into the connection port through the suction end (1), and enters each hydraulic end; The dual-piston drive mechanism (22) drives the movement, pressurizing the fluid end and the medium in the dual-piston drive mechanism (22); Under the action of the hydraulic drive unit (14), the medium converts hydraulic drive energy into medium transport energy, so that the medium is transported and injected into the formation at high pressure after being output through the discharge mechanism (23).

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