On-line oil-water separation device for shield tunneling machine

Abstract

The utility model discloses an on-line oil-water separation device for a shield tunneling machine, relates to the field of oil-water separation, and solves the problems that the construction progress is influenced and construction nodes are delayed due to the fact that the hydraulic pressure of the existing shield tunneling machine needs to be detected and replaced regularly. The oil-water separator comprises an oil outlet pipe and an oil-water separation assembly, the oil-water separation assembly comprises a separator and a driving part, one end of the oil outlet pipe extends into the separator, a plurality of leaking holes are formed in the side wall of the separator, and the driving part is connected with the separator and can drive the separator to rotate. An oil liquid recoverer used for collecting oil liquid and a water recoverer used for collecting water are arranged below the separator, the water recoverer is located on the outer side of the oil liquid recoverer, and an oil supply pipe is connected to the oil liquid recoverer. According to the utility model, centrifugation is carried out by utilizing different densities of hydraulic oil and water, oil-water separation is realized, the hydraulic oil is prevented from being detected or replaced by stopping operation, a large amount of time is saved, the construction progress is accelerated, and construction nodes are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil-water separation, and in particular relates to an online oil-water separation device for a shield machine. Background Art

[0002] At present, the shield machine drive type is mainly divided into hydraulic drive and electric drive. The hydraulic drive has the advantages of stable operation and strong driving force. In the common hydraulic drive shield machine, hydraulic oil is used as the power drive medium to provide the equipment with operating power. Therefore, hydraulic oil often enters the key parts of the equipment with high precision and long-term operation, so the quality and composition of hydraulic oil are usually strictly controlled to avoid excessive water content in hydraulic oil causing corrosion to the precision parts.

[0003] At present, in the field of shield machines, in order to save costs, hydraulic oil will be recycled many times. After long-term use, some water will inevitably be mixed into it, causing the quality of the hydraulic oil to be substandard, affecting the operating status of the equipment, and seriously accelerating the wear of machine parts and some expensive mechanical damage. Therefore, the hydraulic oil will be tested regularly at the construction site, and the need to replace the hydraulic oil will be determined based on the test results. Regular testing and replacement is a waste of time and may affect the construction progress and cause delays in construction nodes. Utility Model Content

[0004] The utility model discloses an online oil-water separation device for a shield machine, which is intended to solve the technical problem that the hydraulic pressure of the existing shield machine needs to be regularly inspected and replaced, which affects the construction progress and causes the delay of construction nodes.

[0005] In order to solve the above-mentioned technical problems, the technical solutions adopted by the present utility model are as follows:

[0006] An online oil-water separation device for a shield machine comprises an oil outlet pipe and an oil-water separation assembly, wherein the oil-water separation assembly comprises a separator and a driving unit, one end of the oil outlet pipe extends into the interior of the separator, a plurality of leakage holes are provided on the side wall of the separator, the driving unit is connected to the separator and can drive the separator to rotate, an oil recovery device for collecting oil and a water recovery device for collecting water are provided below the separator, the water recovery device is located on the outside of the oil recovery device, and an oil supply pipe is connected to the oil recovery device.

[0007] The above technical scheme is adopted, by connecting the oil outlet pipe to the oil outlet end of the hydraulic oil tank of the shield machine, connecting the oil supply pipe to the oil supply end of the working equipment, and adding the device between the oil outlet end of the hydraulic oil tank of the shield machine and the oil supply end of the working equipment. The hydraulic oil flows through the oil outlet pipe from the oil outlet end of the hydraulic oil tank and enters the separator, and the separator is driven to rotate by the driving unit. Due to the different densities of hydraulic oil and water, the density of water is greater than that of hydraulic oil, and the centrifugal force it is subjected to is also greater than that of hydraulic oil. After rotation, the distance of water thrown out from the leak hole is farther than that of hydraulic oil. By setting an oil recovery device and a water recovery device, the hydraulic oil and water thrown to different distances are collected respectively, and the hydraulic oil separated from the water is transported to the oil supply end of the working equipment through the oil supply pipe to ensure the operating state of the equipment. The utility model controls and separates the water in the hydraulic oil online, so that the hydraulic oil always maintains a high quality state, thereby ensuring the operating state of the equipment in the shield machine. Compared with the regular inspection or replacement of hydraulic oil in the prior art, a lot of time is saved, which is conducive to speeding up the construction progress and ensuring the construction nodes.

[0008] Preferably, the separator is cylindrical, an upper end of the separator is provided with an opening, and one end of the oil outlet pipe extends into the separator from the opening.

[0009] The separator is cylindrical in shape and rotates more stably. The oil outlet pipe extends into the separator through the opening at the upper end of the separator to complete the supply of hydraulic oil.

[0010] Preferably, a sponge is provided on the inner wall of the separator.

[0011] The hydraulic oil is adsorbed by the sponge, and the amount of hydraulic oil and water thrown out by the separator during rotation is controlled to achieve stable separation.

[0012] Preferably, the driving part comprises a servo motor and a rotating shaft, the bottom end of the rotating shaft is fixedly mounted on the output shaft of the servo motor, and the top end of the rotating shaft is fixedly mounted at the center of the bottom of the separator.

[0013] The separator is driven to rotate by the servo motor and the rotating shaft to achieve oil-water separation. Oil-water separation can be achieved when the rotation speed is greater than 3000RPM.

[0014] Preferably, the oil recovery device and the water recovery device are both sleeved on the rotating shaft, and the oil recovery device is located above the water recovery device.

[0015] The oil recovery device is arranged above the water recovery device to facilitate the collection of hydraulic oil and water thrown out to different distances due to different centrifugal forces.

[0016] Preferably, the oil recovery device and the water recovery device are both cylindrical, the upper parts of the oil recovery device and the water recovery device are open, and the diameter of the oil recovery device is smaller than the diameter of the water recovery device.

[0017] The rotation of the cylindrical barrel is more stable. According to the different centrifugal forces exerted on the hydraulic oil and water, the diameter of the oil recovery device is set to be smaller than the diameter of the water recovery device, which is convenient for collection.

[0018] Preferably, the oil recovery device and the water recovery device are concentrically provided with a first hollow cylinder and a second hollow cylinder, respectively, and the first hollow cylinder and the second hollow cylinder are respectively provided with a first bearing and a second bearing, and the first bearing and the second bearing are both sleeved on the rotating shaft.

[0019] The leakage of hydraulic oil and water is avoided by setting the first hollow cylinder and the second hollow cylinder. The first bearing and the second bearing are set up, and the rotation of the oil recoverer and the water recoverer can be avoided by connecting the oil recoverer and the water recoverer to the shield machine connecting part, so that the hydraulic oil and water inside the oil recoverer and the water recoverer are not affected by centrifugal force.

[0020] Preferably, the oil outlet pipe is connected to a branching device, and the branching device is connected to a plurality of branching pipes, and the branching pipes extend into the separator.

[0021] The oil outlet pipe passes through the branch device and branch pipe, so that multiple sets of oil-water online separation devices can perform oil-water separation at the same time, which is convenient for increasing the amount of separated hydraulic oil and ensuring the operating status of more equipment in the shield machine.

[0022] Preferably, the water recycler is connected to a drain pipe for draining water, and a ball valve is provided on the drain pipe.

[0023] The water in the water recovery device is discharged from the drain pipe through the ball valve, which is conducive to continuous operation. Furthermore, an automatic ball valve can be used to automatically open the discharge after the liquid level in the water recovery device reaches a certain height.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0025] 1. The utility model utilizes the different densities of hydraulic oil and water, and the different distances they are thrown out due to the different centrifugal forces they are subjected to during rotation, thereby achieving oil-water separation, so that the hydraulic oil always maintains a relatively high quality state, thereby ensuring the operating state of the equipment in the shield machine.

[0026] 2. The utility model adds an oil outlet pipe to the oil outlet end of the hydraulic oil tank of the shield machine, connects the oil supply pipe to the oil supply end of the equipment, and realizes online separation of oil and water during the operation of the equipment, avoiding the need to stop operation to detect or replace the hydraulic oil, saving a lot of time, and is conducive to accelerating the construction progress and ensuring the construction nodes.

[0027] 3. The utility model can realize oil-water separation by multiple groups of online oil-water separation devices through branch devices and branch pipes, thereby increasing the amount of separated hydraulic oil and ensuring the operating status of more equipment in the shield machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0029] Figure 1 It is a structural schematic diagram of the utility model;

[0030] Figure 2 It is a structural schematic diagram of the separator of the utility model;

[0031] Figure 3 It is a structural schematic diagram of the oil recovery device of the utility model.

[0032] Figure numerals: 1-oil outlet pipe, 2-separator, 3-leakage hole, 4-oil recovery device, 5-water recovery device, 6-oil supply pipe, 7-sponge, 8-servo motor, 9-rotating shaft, 10-branch, 11-branch pipe, 12-drain pipe, 13-ball valve, 14-first hollow cylinder, 15-second hollow cylinder, 16-first bearing, 17-second bearing. DETAILED DESCRIPTION

[0033] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and indicated in the accompanying drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0034] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] Combine the following Figure 1-Figure 3 The utility model is described in detail.

[0036] Embodiment 1:

[0037] This embodiment provides an online oil-water separation device for a shield machine, see Figure 1 , including an oil outlet pipe 1 and an oil-water separation assembly, the oil outlet pipe 1 is used to connect to the oil outlet end of the hydraulic oil tank of the shield machine, and the oil-water separation assembly includes a separator 2 and a drive unit, see Figure 2 The separator 2 is cylindrical, and an opening is provided at the upper end of the separator 2. One end of the oil outlet pipe 1 extends into the separator 2 from the opening. A plurality of leakage holes 3 are provided on the side wall of the separator 2. A sponge 7 is provided on the inner wall of the separator 2. The driving part is connected to the separator 2 and can drive the separator 2 to rotate. An oil recovery device 4 for collecting oil and a water recovery device 5 for collecting water are provided below the separator 2. The water recovery device 5 is located on the outside of the oil recovery device 4. An oil supply pipe 6 is connected to the oil recovery device 4 for connecting to the oil supply end of the working equipment in the shield machine. The water recovery device 5 is connected to a drainage pipe 12 for drainage, and a ball valve 13 is provided on the drainage pipe 12.

[0038] In this embodiment, see Figure 1 The driving part includes a servo motor 8 and a rotating shaft 9. The rotation speed of the servo motor 8 is 3000RPM. The bottom end of the rotating shaft 9 is fixedly mounted on the output shaft of the servo motor 8, and the top end of the rotating shaft 9 is fixedly mounted at the center of the bottom of the separator 2.

[0039] In this embodiment, see Figure 1 The oil recovery device 4 and the water recovery device 5 are both cylindrical, the upper parts of the oil recovery device 4 and the water recovery device 5 are open, the diameter of the oil recovery device 4 is smaller than the diameter of the water recovery device 5, the oil recovery device 4 and the water recovery device 5 are both sleeved on the rotating shaft 9, and the oil recovery device 4 is located above the water recovery device 5.

[0040] The specific working principle of this embodiment is as follows:

[0041] By connecting the oil outlet pipe 1 to the oil outlet end of the hydraulic oil tank of the shield machine, and connecting the oil supply pipe 6 to the oil supply end of the working equipment, the device is added between the oil outlet end of the hydraulic oil tank of the shield machine and the oil supply end of the working equipment; when the equipment is running, the hydraulic oil in the hydraulic oil tank enters the separator 2 through the oil outlet pipe 1, and the separator 2 rotates under the drive of the servo motor 8, giving different centrifugal forces to the hydraulic oil and the water in the hydraulic oil. The hydraulic oil has a small density, a small centrifugal force, and a short throwing distance, so it is thrown out to the oil recovery device 4 for collection. The water has a large density, a large centrifugal force, and a long throwing distance, so it is thrown out to the water recovery device 5 for collection. The hydraulic oil collected by the oil recovery device 4 is transported to the oil supply end of the working equipment through the oil supply pipe 6 to ensure the operating state of the equipment; the water collected by the water recovery device 5 is discharged through the drain pipe 12, which is conducive to continuous operation.

[0042] Embodiment 2:

[0043] This embodiment is optimized on the basis of embodiment 1. In this embodiment, refer to Figure 3 The oil recovery device 4 and the water recovery device 5 have similar structures. A first hollow cylinder 14 and a second hollow cylinder 15 are concentrically arranged inside the oil recovery device 4 and the water recovery device 5, respectively. A first bearing 16 and a second bearing 17 are respectively arranged inside the first hollow cylinder 14 and the second hollow cylinder 15. The first bearing 16 and the second bearing 17 are both sleeved on the rotating shaft.

[0044] Specifically, the leakage of hydraulic oil and water is avoided by the arrangement of the first hollow cylinder 14 and the second hollow cylinder 15. By arranging the first bearing 16 and the second bearing 17, the oil recovery device 4 and the water recovery device 5 are connected to the shield machine connecting parts to avoid the rotation of the oil recovery device 4 and the water recovery device 5, so that the hydraulic oil and water inside the oil recovery device 4 and the water recovery device 5 are not affected by the centrifugal force, which is beneficial to the use of hydraulic oil and the discharge of water.

[0045] Embodiment 3:

[0046] This embodiment is optimized on the basis of Embodiment 1 or Embodiment 2. In this embodiment, refer to Figure 1 The oil outlet pipe 1 is connected to a branching device 10, and the branching device 10 is connected to four branching pipes 11, and each branching pipe 11 extends into a separator 2 of a group of oil-water online separation devices.

[0047] Specifically, through the brancher 10 and the four branch pipes 11 thereon, four groups of online oil-water separation devices can perform oil-water separation at the same time, which is convenient for increasing the amount of separated hydraulic oil and ensuring the operating status of more equipment in the shield machine.

[0048] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shield machine oil-water online separation device, characterized in that: The invention comprises an oil outlet pipe (1) and an oil-water separation component, wherein the oil-water separation component comprises a separator (2) and a driving unit, wherein one end of the oil outlet pipe (1) extends into the separator (2), a plurality of leakage holes (3) are provided on the side wall of the separator (2), the driving unit is connected to the separator (2) and can drive the separator (2) to rotate, an oil recovery device (4) for collecting oil and a water recovery device (5) for collecting water are provided below the separator (2), the water recovery device (5) is located outside the oil recovery device (4), and an oil supply pipe (6) is connected to the oil recovery device (4).

2. The shield machine oil-water online separation device according to claim 1, characterized in that: The separator (2) is cylindrical, and an opening is provided at the upper end of the separator (2). One end of the oil outlet pipe (1) extends into the separator (2) from the opening.

3. The shield machine oil-water online separation device according to claim 2, characterized in that: A sponge (7) is provided on the inner wall of the separator (2).

4. The shield machine oil-water online separation device according to any one of claims 1 to 3, characterized in that: The driving unit comprises a servo motor (8) and a rotating shaft (9), wherein the bottom end of the rotating shaft (9) is fixedly mounted on the output shaft of the servo motor (8), and the top end of the rotating shaft (9) is fixedly mounted at the center of the bottom of the separator (2).

5. The shield machine oil-water online separation device according to claim 4, characterized in that: The oil recovery device (4) and the water recovery device (5) are both sleeved on the rotating shaft (9), and the oil recovery device (4) is located above the water recovery device (5).

6. The shield machine oil-water online separation device according to claim 5, characterized in that: The oil recovery device (4) and the water recovery device (5) are both cylindrical, the upper parts of the oil recovery device (4) and the water recovery device (5) are open, and the diameter of the oil recovery device (4) is smaller than the diameter of the water recovery device (5).

7. The shield machine oil-water online separation device according to claim 6, characterized in that: A first hollow cylinder (14) and a second hollow cylinder (15) are concentrically arranged inside the oil recovery device (4) and the water recovery device (5), respectively; a first bearing (16) and a second bearing (17) are respectively arranged inside the first hollow cylinder (14) and the second hollow cylinder (15), and the first bearing (16) and the second bearing (17) are both sleeved on the rotating shaft (9).

8. An online oil-water separation device for a shield machine according to any one of claims 1-3 or 5-7, characterized in that: The oil outlet pipe (1) is connected to a branching device (10), and the branching device (10) is connected to a plurality of branching pipes (11), and the branching pipes (11) extend into the separator (2).

9. An online oil-water separation device for a shield machine according to any one of claims 1-3 or 5-7, characterized in that: The water recovery device (5) is connected to a drainage pipe (12) for drainage, and a ball valve (13) is provided on the drainage pipe (12).

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