Liquid dissolving pump loop mechanism and emulsion pump station

Abstract

The invention discloses a chemical liquid pump loop mechanism with better sealing performance and stability and an emulsion pump station. According to the technical scheme, the device comprises a bottom support mechanism, a liquid return header pipe and a liquid supply header pipe, the liquid return header pipe and the liquid supply header pipe are arranged on the two sides of the bottom support mechanism respectively, a metal hard pipe and a rubber hose connected to the front end of the metal hard pipe are connected to the liquid supply header pipe, and connecting assemblies are arranged at the two ends of the rubber hose respectively. The connecting assembly comprises a connector, a flange arranged at the front end of the connector and a fastening and sealing integrated piece arranged in the middle of the connector, a first flange for fixing the flange is arranged at the front end of the connector, a second flange for fixing the fastening and sealing integrated piece is arranged in the middle of the connector, and retaining teeth are arranged at the rear end of the connector. The fastening and sealing integrated piece comprises a protective sleeve arranged at the front end of the rubber hose in a sleeving mode and a connecting plate arranged at the front end of the protective sleeve, the connecting plate is connected with the second flange through a set of first bolts, and first open grooves extending in the axial direction are formed in the two sides of the rear end of the protective sleeve.

Description

Technical Field

[0001] The invention relates to a mining equipment, in particular to an emulsion pumping station. Background Art

[0002] An emulsion pump station is a power device used to provide pressurized liquid to the hydraulic support of the comprehensive mining work or the single hydraulic support of the general mining working face. It is mainly composed of an emulsion tank, an emulsion pump station and a hydraulic control system. The emulsion pump station is a key support equipment in the mechanization of comprehensive mining in coal mines, and is of great significance for ensuring the safety of coal mine production and improving production efficiency. The structure of the emulsion pump station consists of an emulsion pump and an emulsion pump circuit mechanism connected to the emulsion pump. The emulsion pump circuit mechanism includes: a bottom support mechanism and a return liquid main pipe and a liquid supply main pipe respectively arranged on both sides of the bottom support mechanism. The liquid supply main pipe is connected to a metal hard pipe and a rubber hose connected to the front end of the metal hard pipe in turn. The two ends of the rubber hose are connected to the metal hard pipe and the emulsion pump respectively through a connecting assembly. The disadvantages are: 1. Since the pressure in the liquid supply pipe is very high during operation and the emulsion pump will produce high-frequency vibrations, and the two ends of the traditional rubber hose are only fixed by hoops, it is easy to cause leakage of the rubber hose, and in severe cases, the rubber hose will fall off completely, causing a safety accident; 2. Due to the high-frequency vibration of the emulsion pump, the bolts on the split flange connected to the emulsion pump are easy to loosen, and the assembly of the split flange is relatively inconvenient. Utility Model Content

[0003] The technical problem to be solved by the invention is to provide a liquid emulsion pump circuit mechanism and an emulsion pump station with better sealing and stability.

[0004] To solve the above problems, the technical solution adopted by the invention includes: a base support mechanism and a liquid return main pipe and a liquid supply main pipe respectively arranged on both sides of the base support mechanism, the liquid supply main pipe is connected to a metal rigid pipe and a rubber hose connected to the front end of the metal rigid pipe, and connecting components are respectively provided at both ends of the rubber hose, characterized in that: the connecting component includes a joint, a flange arranged at the front end of the joint and a fastening and sealing integrated part arranged at the middle part of the joint, the front end of the joint is provided with a first flange for fixing the flange, the middle part is provided with a second flange for fixing the fastening and sealing integrated part, and the rear end is provided with a stop tooth, the fastening and sealing integrated part includes a sheath sleeved on the front end of the rubber hose, a connecting plate arranged at the front end of the sheath, the connecting plate is connected to the second flange by a group of first bolts, and first axially extending first slots are provided on both sides of the rear end of the sheath, and the two ends of the first slot are bent outward to form clamping plates, and second bolts are provided between the clamping plates.

[0005] The emulsion pump circuit mechanism is characterized in that an annular sealing groove is provided on the joint near the second flange, and a sealing ring embedded in the annular sealing groove is provided on the inner wall of the rubber hose.

[0006] The emulsion pump circuit mechanism is characterized in that the sealing ring is integrally injection molded on the inner wall of the rubber hose and an air storage cavity is provided inside the rubber hose. A one-way valve nozzle connected to the air storage cavity is provided on the rubber hose. When the air storage cavity is inflated, the outer surface of the sealing ring is embedded in the annular sealing groove.

[0007] The emulsion pump circuit mechanism is characterized in that the air nozzle extends from the sleeve and is fastened by a nut.

[0008] The emulsion pump loop mechanism is characterized in that the flange consists of a first flange and a second flange, screws are provided on both sides of the first flange and the second flange, tension springs are hung between adjacent screws, and the first flange and the second flange are provided with second slots for the tension springs to be hung in the screws.

[0009] The emulsion pump loop mechanism is characterized in that hooks are provided at both ends of the tension spring, a positioning convex point is provided below the vertex of the hook, a positioning groove is provided on the screw rod to cooperate with the positioning convex point, and when the screw rod is tightened, the positioning convex point is embedded in the positioning groove.

[0010] The emulsion pump circuit mechanism is characterized in that a sealing ring is provided at the front end of the first flange.

[0011] The emulsion pump circuit mechanism is characterized in that: pipe clamps are provided at both ends of the liquid return main pipe and the liquid supply main pipe, and air bags are provided on the inner walls of the pipe clamps.

[0012] An emulsion pump station comprises an emulsion pump, wherein the emulsion pump is provided with an emulsion pump circuit mechanism as described in any one of the above items.

[0013] The advantages of the invented chemical pump circuit mechanism and emulsion pump station are as follows: 1. The rubber hose is connected and sealed by tightening the sealing integrated part, which has the advantages of good sealing and not easy to fall off; 2. By arranging a tension spring between the screws of the split flange, the split flange can be fixed to the joint for easy assembly, and after the screw is tightened, the positioning protrusion on the tension spring is embedded in the positioning groove of the screw, which can effectively prevent the screw from rotating.

[0014] The invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the invented liquid pump circuit mechanism; Figure 2 It is a schematic diagram of the structure of the invented rubber hose and connecting assembly; Figure 3It is a structural schematic diagram of the fastening and sealing integrated part of the invention; Figure 4 yes Figure 2 AA section view; Figure 5 yes Figure 2 BB section view; Figure 6 It is a structural diagram of the invented split flange; Figure 7 It is a structural schematic diagram of the invented pipe clamp; Figure 8 It is a structural diagram of the invented emulsion pumping station. DETAILED DESCRIPTION Embodiment 1:

[0016] Reference Figure 1-7 As shown, the emulsion pump circuit mechanism of the invention includes a bottom support mechanism 1 and a liquid return main pipe 2 and a liquid supply main pipe 3 respectively arranged on both sides of the bottom support mechanism 1. The liquid supply main pipe 3 is connected to a metal hard pipe 4 and a rubber hose 5 connected to the front end of the metal hard pipe 4. The metal hard pipe 4 is usually a stainless steel water pipe. Connecting components 6 are respectively provided at both ends of the rubber hose 5. The connecting component 6 includes a joint 7, a flange 8 arranged at the front end of the joint 7, and a fastening and sealing integrated part 9 arranged in the middle of the joint 7. The front end of the joint 7 is provided with a first flange 10 for fixing the flange 8, the middle of the joint 7 is provided with a second flange 11 for fixing the fastening and sealing integrated part 9, and the rear end of the joint 7 is provided with a stop tooth 12. The fastening and sealing integrated part 9 includes a sheath 13 sleeved on the front end of the rubber hose 5 and a connecting plate 14 arranged at the front end of the sheath 13, and the connecting plate 14 and the sheath 13 are seamlessly welded. The connecting plate 14 is connected to the second flange 11 by first bolts 15 at four corners. The two sides of the rear end of the sheath 13 are provided with first slots 16 extending axially, and the two ends of the first slots 16 are bent outward to form clamping plates 17, and second bolts 18 are arranged between the clamping plates 17. By tightening the second bolts 18, the rear end of the sheath 13 can be clamped to the rubber hose 5 to play the role of a clamp.

[0017] Preferably, the joint 7 is provided with an annular sealing groove 19 near the second flange 11, and the inner wall of the rubber hose 5 is provided with a sealing ring 20 embedded in the annular sealing groove 19. This further improves the sealing performance and further prevents the rubber hose 5 from falling off. The sealing ring 20 and the inner wall of the rubber hose 5 can be integrally formed or separately provided. Integrally formed has a better sealing effect than separately provided.

[0018] Preferably, the sealing ring 20 is integrally injection molded on the inner wall of the rubber hose 5 through an injection mold, and an air storage chamber 21 is provided inside the sealing ring 20, and a one-way valve air nozzle 22 connected to the air storage chamber 21 is provided on the rubber hose 5. When the air storage chamber 21 is inflated, the outer surface of the sealing ring 20 is embedded in the annular sealing groove 19. Since the sealing ring 20 is solid, it is difficult to insert it into the joint 7 during assembly, which brings inconvenience to assembly. However, the inflatable sealing ring 20 is in a flat state before inflation, and can be easily inserted into the joint 7, and different air pressure values ​​can be inflated to meet different sealing level requirements. The one-way valve air nozzle 22 is a well-known technology, such as: the air nozzle structure on the automobile tire can be adopted.

[0019] Preferably, the air nozzle 22 extends from the sheath 13 and is fastened to the sheath 13 by a nut 23 to fix the air nozzle 22 for easy inflation.

[0020] Preferably, the flange 8 is composed of a first flange 801 and a second flange 802, both sides of the first flange 801 and the second flange 802 are provided with screws 25, tension springs 26 are hung between adjacent screws 25, and the first flange 801 and the second flange 802 are provided with second slots 24 for the tension springs 26 to be hung in the screws 25. Since the first flange 10 and the second flange 11 are provided on the connector 7, an integrated flange cannot be installed, so a split flange is used. However, when assembling the split flange, two people are required to cooperate, one person holds the flange and the rubber hose, and the other person tightens the screw, which brings inconvenience to the assembly. After the tension spring 26 is provided, the first flange 801 and the second flange 802 can be fixed on the connector 7 to facilitate assembly.

[0021] Preferably, hooks 27 are provided at both ends of the tension spring 26, and a positioning convex point 28 is provided below the vertex of the hook 27, and a positioning groove 29 is provided on the screw rod 25 to cooperate with the positioning convex point 28. When the screw rod 25 is tightened to the optimal position, the positioning convex point 28 is automatically embedded in the positioning groove 29 to play a role in positioning the screw rod 25, and it is also convenient for the user to judge whether the screw rod 25 is screwed to the optimal position. In order to ensure that the positioning convex point 28 can be accurately embedded in the positioning groove 29, the optimal tightening position of the screw rod 25 needs to be tested before leaving the factory, and the width of the second slot 24 should be the same as that of the tension spring 26 to ensure that the positioning convex point 28 can be fixed in the same position.

[0022] Preferably, a sealing ring 30 is provided at the front end of the first flange 10 to achieve interface sealing at the connection with the emulsion pump.

[0023] Preferably, pipe clamps 31 are provided at both ends of the liquid return pipe 2 and the liquid supply pipe 3 to fix the liquid return pipe 2 and the liquid supply pipe 3. An air bag 32 is provided on the inner wall of the pipe clamp 31, and the air bag 32 can play a buffering role on the liquid return pipe 2 and the liquid supply pipe 3 to reduce vibration, thereby effectively preventing the joints at both ends of the liquid return pipe 2 and the liquid supply pipe 3 from loosening. Embodiment 2:

[0024] Reference Figure 8 As shown, an emulsion pump station of the invention includes an emulsion pump 33, on which the emulsion pump circuit mechanism a described in Example 1 is installed. Specifically: the rubber hose 5 is connected to the pump port of the emulsion pump 33 through the first flange 801 and the second flange 802.

[0025] As mentioned above, the invention is not limited in any form. Although the invention has been disclosed as a preferred implementation case as above, it is not used to limit the invention. Any technician familiar with this profession can make some changes or modifications to equivalent implementation cases with equivalent changes by using the above-disclosed structure and technical content without departing from the scope of the technical solution of the invention. However, any simple modifications, equivalent changes and modifications made to the above implementation cases based on the technical essence of the invention without departing from the content of the technical solution of the invention are still within the scope of the technical solution of the invention.

Claims

1. An emulsion pump circuit mechanism, comprising a base support mechanism (1) and a liquid return main pipe (2) and a liquid supply main pipe (3) respectively arranged on both sides of the base support mechanism (1), the liquid supply main pipe (3) being connected to a metal hard pipe (4) and a rubber hose (5) connected to the front end of the metal hard pipe (4), and connecting components (6) are respectively arranged at both ends of the rubber hose (5), characterized in that: The connecting assembly (6) comprises a joint (7), a flange (8) arranged at the front end of the joint (7), and a fastening and sealing integrated part (9) arranged at the middle of the joint (7); the joint (7) is provided with a first flange (10) at the front end for fixing the flange (8), a second flange (11) at the middle for fixing the fastening and sealing integrated part (9), and a back-stopping tooth (12) at the rear end; the fastening and sealing integrated part (9) comprises a sheath (13) sleeved on the front end of the rubber hose (5), a connecting plate (14) arranged at the front end of the sheath (13), the connecting plate (14) being connected to the second flange (11) via a group of first bolts (15); first slots (16) extending axially are provided at both sides of the rear end of the sheath (13), and two ends of the first slot (16) are bent outwards to form clamping plates (17), and second bolts (18) are provided between the clamping plates (17).

2. The emulsion pump circuit mechanism according to claim 1, characterized in that: The joint (7) is provided with an annular sealing groove (19) near the second flange (11), and the inner wall of the rubber hose (5) is provided with a sealing ring (20) embedded in the annular sealing groove (19).

3. The emulsion pump circuit mechanism according to claim 2, characterized in that: The sealing ring (20) is integrally formed on the inner wall of the rubber hose (5) and is provided with an air storage cavity (21) therein; the rubber hose (5) is provided with a one-way valve nozzle (22) in communication with the air storage cavity (21); when the air storage cavity (21) is inflated, the outer surface of the sealing ring (20) is embedded in the annular sealing groove (19).

4. The emulsion pump circuit mechanism according to claim 3, characterized in that: The air nozzle (22) extends from the sleeve (13) and is fastened by a nut (23).

5. The emulsion pump circuit mechanism according to claim 1, characterized in that: The flange (8) is composed of a first flange (801) and a second flange (802), and screw rods (25) are provided on both sides of the first flange (801) and the second flange (802), and tension springs (26) are hung between adjacent screw rods (25). The first flange (801) and the second flange (802) are provided with second slots (24) for the tension springs (26) to be hung in the screw rods (25).

6. The emulsion pump circuit mechanism according to claim 5, characterized in that: Hooks (27) are provided at both ends of the tension spring (26), a positioning protrusion (28) is provided below the vertex of the hook (27), and a positioning groove (29) is provided on the screw rod (25) to cooperate with the positioning protrusion (28). When the screw rod (25) is tightened, the positioning protrusion (28) is embedded in the positioning groove (29).

7. The emulsion pump circuit mechanism according to claim 1, characterized in that: A sealing ring (30) is provided at the front end of the first flange (10).

8. The emulsion pump circuit mechanism according to claim 1, characterized in that: Pipe clamps (31) are provided at both ends of the liquid return main pipe (2) and the liquid supply main pipe (3), and air bags (32) are provided on the inner walls of the pipe clamps (31).

9. An emulsion pump station, comprising an emulsion pump (33), characterized in that: The emulsion pump (33) is equipped with an emulsion pump circuit mechanism (a) according to any one of claims 1 to 8.

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