Hydraulic slurry pump

Abstract

The invention provides a hydraulic slurry pump. The working efficiency of the slurry pump is improved and the service life of the slurry pump is prolonged through an innovative structural design. The slurry pump comprises slurry pumping assemblies which are symmetrically arranged left and right, and the slurry pumping assemblies achieve suction and discharge of slurry through expansion and contraction of liquid bags. Through the linkage assembly, the left liquid bag and the right liquid bag achieve interactive stretching, when the liquid bag on one side pumps slurry, the liquid bag on the other side sucks the slurry, and continuous conveying of the slurry is guaranteed. By means of the design, the sliding friction problem of a traditional slurry pump is avoided, slurry is prevented from entering the liquid bag, and the durability and operation stability of equipment are greatly improved. The guide assembly prevents external leakage through a sealing structure, and the safety of the system is improved. The slurry conveying device is simple in structure and high in adaptability, the problem of abrasion in the prior art can be effectively solved, and efficient and continuous slurry conveying is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of mud pumps, and in particular to a mud pump that drives a bladder pump slurry through hydraulic pressure, which is suitable for mud transportation and grouting operations in industries such as petroleum, chemical industry, mining, and construction. Background Art

[0002] At present, piston mud pumps are widely used in the transportation of various types of mud. However, the reciprocating piston motion used in this type of pump will cause sliding friction between the piston and the cylinder liner. The hard particles often contained in the mud will enter between the piston and the cylinder liner during long-term operation, causing wear and tear, which greatly shortens the life of the piston and the cylinder liner. In addition, due to the frequent reciprocating motion of the piston, wear is aggravated, maintenance costs and downtime are increased, and the mud transportation efficiency is seriously affected. Although there are some solutions in the existing technology, there are generally problems such as complex design, high cost, and difficult maintenance. Therefore, it is necessary to develop a new type of mud pump to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a new type of mud pump, which uses a liquid bag to replace the friction structure of the traditional piston and cylinder sleeve through an innovative structural design to achieve frictionless mud pumping. At the same time, the left and right liquid bag components of the present invention work alternately through a linkage structure, thereby achieving the effect of continuous mud pumping. This design significantly improves the working life and efficiency of the mud pump, reduces operating costs, and solves the wear problem in traditional mud pumps.

[0004] Main components 1. Pump assembly: It includes cylinder body, liquid bag, cylinder cover, oil channel, inlet valve and outlet valve, which are used to realize the suction and discharge of mud. A pump assembly is configured on each side of the mud pump to realize continuous mud transportation through alternating action.

[0005] 2. Linkage assembly: used to coordinate the alternating expansion and contraction of the left and right liquid sacs, so that when one liquid sac is pumping slurry, the other liquid sac is sucking slurry, thereby ensuring continuous pumping of slurry.

[0006] 3. Hydraulic source: Provides power for the expansion and contraction of the bladder, controls the suction and discharge of mud through the flow of hydraulic oil, and ensures the stable movement of the bladder.

[0007] 4. Hydraulic transmission assembly: used to isolate the hydraulic source and the fluid bag to prevent the impact on other components of the system when a fault occurs. During production, by adopting different cylinder diameter ratios between the drive cylinder and the pump cylinder, the hydraulic flow or hydraulic pressure can be amplified to adapt to different working conditions.

[0008] 5. Guide assembly: includes guide sleeve, pull rod and sealing structure to prevent leakage of hydraulic oil and ensure controlled operation of the bladder.

[0009] Specific structure and working principle 1. Left and right pumping assemblies: Pumping assemblies are set on the left and right sides respectively, and the expansion and contraction of the liquid bladder are controlled by hydraulic pressure. The linkage assembly ensures that when the left liquid bladder pumps slurry, the right liquid bladder sucks slurry, and vice versa, so as to achieve continuous and stable mud transportation. The mud enters the pumping chamber through the slurry inlet valve, and the liquid bladder contracts under the drive of the hydraulic source to suck in the mud, and discharges the mud from the slurry outlet valve when expanding, realizing a complete pumping cycle.

[0010] 2. Linkage assembly: used to coordinate the synchronous operation of the left and right liquid sacs. When one liquid sac expands to discharge the mud, the other liquid sac contracts to absorb the mud, ensuring the continuity of the mud flow.

[0011] 3. Guide assembly: The left and right tie rods are linked to ensure that the bladder operates under control. A sealing structure is used between the guide sleeve and the tie rod to prevent hydraulic oil leakage and block external impurities from entering the hydraulic system, further extending the system life and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 :The basic structure of the mud pump is shown, including the configuration and working status of the left and right liquid bags. The left and right liquid bag components achieve synchronous alternating pumping through the coordination of the linkage components, achieving the effect of continuous slurry pumping.

[0013] Figure 2 : Demonstrates the working principle of adding a hydraulic transmission component, which acts as an isolation between the hydraulic source and the fluid sac, preventing the failure of a single component from affecting the overall system.

[0014] In the figure, 1. slurry discharge valve, 2. cylinder body, 3. pumping chamber, 4. liquid bag, 5. drive chamber, 7. cylinder head, 8. oil channel, 9. slurry inlet valve, 10. pull rod, 11. hydraulic source, 12. guide sleeve, 13. connecting seat, 14. connecting sleeve, 15. sealing element, 16. drive cylinder, 17. piston group, and 18. pump cylinder. DETAILED DESCRIPTION

[0015] Example 1: Basic structure See also Figure 1 , this embodiment includes the following components: 1. Pump slurry assembly: Slurry discharge valve (1): controls the discharge of slurry from the pump; Cylinder body (2) and cylinder head (7): used for storing and transporting mud; Liquid sac (4): It realizes the suction and discharge of mud by expansion and contraction. There is a liquid sac on each side. Slurry inlet valve (9): controls the suction of slurry; Oil channel (8): used to transport hydraulic oil to drive the action of the bladder.

[0016] 2. Linkage components: Connecting seat (13) and connecting sleeve (14): ensuring stable movement of the pull rod; Pull rod (10): used to link the synchronous extension and retraction of the liquid bladder, ensuring the interactive operation of the liquid bladders on the left and right sides, and realizing continuous mud pumping.

[0017] 3. Guide components: Guide sleeve (12): The sealing structure between the guide sleeve and the pull rod is used to prevent the hydraulic oil from leaking out and ensure the system is airtight.

[0018] 4. Hydraulic source: provides driving force for the bladder and realizes the expansion and contraction of the bladder through the flow of hydraulic oil.

[0019] Embodiment 2: Improvement of adding hydraulic transmission components A hydraulic transmission component is added on the basis of Example 1 to isolate the hydraulic source from the liquid bag, further improving the stability and reliability of the system.

[0020] 1. Hydraulic transmission components: The drive cylinder (16), piston group (17), and pump cylinder (18) are used to drive the expansion and contraction of the liquid sac; they cooperate with the hydraulic system to provide power to control the suction and discharge of mud. They isolate the hydraulic source and the liquid sac to prevent other components of the system from being affected when a fault occurs. By adopting different cylinder diameter ratios between the drive cylinder and the pump cylinder, the hydraulic flow or hydraulic pressure can be amplified to adapt to different working conditions.

[0021] Advantageous Effects of the Invention 1. Frictionless design: The liquid capsule is used to replace the traditional piston and cylinder liner structure, which completely eliminates the sliding friction problem, avoids the wear of mud particles on the friction pair, and increases the service life of the pump.

[0022] 2. Continuous pumping: The linkage assembly ensures that the left and right liquid bags work alternately to achieve continuous pumping of mud, effectively solving the problem of intermittent pumping of traditional mud pumps.

[0023] 3. High reliability: The sealing structure of the guide assembly ensures the safety of the system, prevents hydraulic oil leakage, and blocks impurities from entering the hydraulic system.

[0024] 4. Isolation protection: The hydraulic transmission component isolates the hydraulic source from the fluid bag to further protect the system and prevent a single fault from affecting the stable operation of other components.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0026] The mud described in the present invention is a representative of a solid-liquid two-phase mixture, and fluids such as sewage and mortar are all pumped objects thereof.

Claims

1. A hydraulic mud pump, characterized in that: The mud pump includes left and right opposed pump slurry components, which include a cylinder body, a liquid bag, a cylinder cover, an oil channel, a slurry inlet valve, a slurry outlet valve and a linkage component. Driven by a hydraulic source, the liquid bag realizes the suction and discharge of mud through volume changes. The linkage component is used to realize the synchronous interactive expansion and contraction of the left and right liquid bags to ensure continuous pumping of the mud.

2. The hydraulic mud pump according to claim 1, characterized in that: The mud pump further comprises a hydraulic transmission component, and the hydraulic transmission component drives the expansion and contraction of the liquid bag through hydraulic oil.

3. The hydraulic mud pump according to claim 1 or 2, characterized in that: The hydraulic transmission assembly can amplify the hydraulic flow or the hydraulic pressure by adopting different cylinder diameter ratios between the driving cylinder and the pump cylinder to adapt to different working conditions.

4. The hydraulic mud pump according to any one of claims 1 to 3, characterized in that: A sealing structure is provided between the guide sleeve and the pull rod to prevent the hydraulic oil from leaking out and external impurities from entering the system.

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