Pipe disc type water cooling device for cooling hydraulic oil of mud scraper of sedimentation tank

Abstract

The utility model discloses a pipe disc type water cooling device for cooling hydraulic oil of a mud scraper of a sedimentation tank, which belongs to the technical field of cooling of hydraulic oil and comprises a spiral pipe immersed in the sedimentation tank, and straight pipes extending to the position above the water surface of the sedimentation tank are arranged at the two ends of the spiral pipe. And one straight pipe is connected with the output end of the original air cooling mechanism, and the other straight pipe is connected with the input end of the oil tank. According to the utility model, the heat of the hydraulic oil in the spiral pipe is taken away by using flowing water in the original sedimentation tank for water treatment, a cooling medium and power do not need to be additionally arranged, the energy consumption is very low, and water cooling is used as a resident cooling mode, so that the starting frequency of an air cooling mechanism is greatly reduced, and the effects of energy conservation and emission reduction are achieved; and when necessary, the cooling effects of water cooling and air cooling are combined, so that a better cooling effect can be realized. A cleaning mechanism and a driving mechanism thereof are further arranged, attachments on the surface of the spiral pipe can be cleaned away, and the heat exchange effect of the spiral pipe is guaranteed.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of cooling hydraulic oil, in particular to a tube-disk type water cooling device used for cooling hydraulic oil of a sedimentation tank scraper. Background Art

[0002] Sedimentation tanks are necessary facilities in urban sewage treatment plants, water plants and industrial wastewater treatment. During the application of sedimentation tanks, scrapers need to be installed to remove the sludge settled at the bottom of the tank and skim the scum on the surface of the tank. The power source of the scraper is usually a hydraulic system, which is equipped with an oil tank and an oil circulation pipeline. The hydraulic oil needs to be cooled before it returns to the tank. The original cooling method is air cooling, which requires a special electric drive and consumes more energy. At the same time, since the oil tank is in an open-air environment, it is greatly affected by the environment, especially in summer. Long-term operation and sun exposure will cause high oil temperature alarms, causing the scraper to be out of service, posing certain hidden dangers to production safety. Therefore, it is necessary to sufficiently cool the reflux hydraulic oil to reduce the temperature of the oil when it returns to the tank, thereby avoiding high oil temperature alarms. Utility Model Content

[0003] The technical solution of the utility model is aimed at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. It mainly provides a tube-disc water cooling device for cooling the hydraulic oil of a sedimentation tank scraper, which is used to solve the technical problems proposed in the above background technology that the original cooling method consumes more energy and has poor cooling effect.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A tube-disc water cooling device for cooling hydraulic oil of a sedimentation tank scraper comprises a spiral tube immersed in a sedimentation tank, both ends of the spiral tube are provided with straight tubes extending above the water surface of the sedimentation tank, one of the straight tubes is connected to the output end of the original air cooling mechanism, and the other straight tube is connected to the input end of the oil tank.

[0006] Specifically, the inner diameter of the spiral tube body is 200 mm, and the length of the straight tube is 1100 mm.

[0007] Furthermore, a cleaning mechanism for cleaning the surface of the spiral tube is provided on one side of the end of the spiral tube, and the cleaning mechanism is connected to a lifting mechanism for driving the cleaning mechanism to move between being immersed in the sedimentation tank and being located above the water surface of the sedimentation tank, and the lifting mechanism is connected to a translation mechanism for driving the lifting mechanism and the cleaning mechanism to move laterally, and the translation mechanism is located above the water surface of the sedimentation tank.

[0008] As an implementation mode of the above scheme, the cleaning mechanism includes an outer cylinder carrier in a cylindrical shape, the inner diameter of the outer cylinder carrier is larger than the outer diameter of the spiral tube body, the central axis of the outer cylinder carrier is parallel to the central axis of the spiral tube, and the top of the outer cylinder carrier is provided with a strip-shaped clearance opening extending along its length direction, one end of the strip-shaped clearance opening extends to the end face of the outer cylinder carrier facing the spiral tube and is aligned with the straight tube, and the inner surface of the outer cylinder carrier is evenly provided with first bristles.

[0009] Furthermore, the cleaning mechanism comprises a cylindrical inner cylinder carrier, the outer diameter of the inner cylinder carrier is smaller than the inner diameter of the spiral tube body, the central axis of the inner cylinder carrier is parallel to the central axis of the spiral tube, and the outer surface of the inner cylinder carrier is evenly provided with second bristles.

[0010] Furthermore, the lifting mechanism includes an electric telescopic rod and a connecting rod connected to a working end of the electric telescopic rod, the connecting rod is fixedly connected to the cleaning mechanism, and the electric telescopic rod is located above the cleaning mechanism.

[0011] Furthermore, a fixing plate is fixedly connected to one side of the connecting rod connected to the cleaning mechanism, and a through hole is provided on the fixing plate.

[0012] Furthermore, the translation mechanism includes a screw rod parallel to the central axis of the spiral tube and a slider threadably mounted on the screw rod, the slider is connected to the lifting mechanism via a connecting block, and one end of the screw rod is connected to a motor or a handle for driving the screw rod to rotate.

[0013] Furthermore, the translation mechanism includes a protective shell with a strip opening on one side, the screw rod and the slider are both located inside the protective shell, the connecting block passes through the strip opening and can move along the length direction of the strip opening, and the length direction of the strip opening is parallel to the length direction of the screw rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model arranges a spiral tube immersed in a sedimentation tank. When in use, flowing water in the original sedimentation tank of water treatment is used to take away the heat of the hydraulic oil in the spiral tube, thereby achieving a better effect of cooling the hydraulic oil. No additional cooling medium and power are required, the installation is convenient, the structure is simple, and the energy consumption is very low.

[0016] The spiral tube in the utility model is connected in series with the original air cooling mechanism, and water cooling is used as a permanent cooling method. The flowing water of the sedimentation tank inherent in the water treatment process is used to achieve cooling. No external force is required, which greatly reduces the frequency of starting the air cooling mechanism and achieves the effect of energy saving and emission reduction. When necessary, the air cooling mechanism is started by controlling the temperature control sensor to achieve the cooling effect of combined water cooling and air cooling, thereby ensuring that the temperature of the hydraulic oil returning to the oil tank is low enough.

[0017] The spiral tube of the utility model is immersed in the sedimentation tank. In winter, the viscosity of the hydraulic oil increases due to low temperature, resulting in a decrease in the self-priming ability of the oil pump, an increase in the pressure loss of the hydraulic system, and even failure to start in severe cases. The water temperature in the sedimentation tank is higher than the air temperature, and the water is in a flowing state, which can prevent the viscosity of the oil in the spiral tube from being too high, which is conducive to ensuring the fluidity of the hydraulic oil.

[0018] The utility model takes into account that the spiral tube is continuously immersed in the sedimentation tank, and debris may adhere to its surface, which may adversely affect the heat exchange effect. Therefore, a cleaning mechanism and a driving mechanism thereof are provided. When not in use, the cleaning mechanism is located above the water surface. When in use, the cleaning mechanism is lowered to a position flush with the spiral tube, and then driven to move laterally, and the bristles therein clean the attachments on the surface of the spiral tube, thereby ensuring the heat exchange effect of the spiral tube.

[0019] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the spiral tube in the utility model;

[0021] Figure 2 It is a schematic diagram of a hydraulic system used in the spiral tube of the present utility model;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the cleaning mechanism and its driving mechanism and the spiral tube in the utility model;

[0023] Figure 4 It is a schematic diagram of the cleaning mechanism and its driving mechanism and the spiral tube in the utility model from another perspective;

[0024] Figure 5 This is a schematic diagram of the cleaning mechanism and its driving mechanism in the utility model from another perspective.

[0025] Reference numerals:

[0026] 1. Spiral tube; 11. Straight tube; 2. Fixed plate; 21. Through hole; 3. Outer tube carrier; 31. Strip-shaped opening; 4. Inner tube carrier; 5. Second bristles; 6. First bristles; 7. Electric telescopic rod; 8. Translation mechanism; 81. Screw rod; 82. Sliding block; 83. Connecting block; 84. Protective shell; 9. Connecting rod; 10. Strip-shaped opening. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field of the present invention. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] Embodiment 1: A tube-disc water cooling device for cooling hydraulic oil of a sedimentation tank scraper comprises a spiral tube 1 immersed in a sedimentation tank, such as Figure 1 As shown, both ends of the spiral tube 1 are provided with straight tubes 11 extending to above the water surface of the sedimentation tank, and the two straight tubes 11 are aligned (located in the same vertical plane), one of the straight tubes 11 is connected to the output end of the original air cooling mechanism, and the other straight tube 11 is connected to the input end of the oil tank, as shown in FIG. Figure 2 Specifically, the inner diameter of the main body of the spiral tube 1 is 200 mm, and the length of the straight tube 11 is 1100 mm; the straight tube 11 and the spiral tube 1 are integrally formed, and the material used is 304 stainless steel, which meets the safety requirements for use.

[0031] When used, the hydraulic oil flowing back to the oil tank first passes through the original air cooling mechanism (not started) and then enters the spiral tube 1. The flowing water in the sedimentation tank (the original water treatment process requires a sedimentation tank, and the water in the sedimentation tank is in a continuous flow state) is used to take away the heat of the hydraulic oil in the spiral tube 1 to achieve cooling of the hydraulic oil. The water flow in the sedimentation tank is used as the cooling medium, and there is no need to add additional cooling medium. It is easy to install, simple in structure, and has a low failure rate. During long-term operation and / or summer sun exposure, the air cooling mechanism is controlled by the temperature control sensor to start the air cooling mechanism. The hydraulic oil is first cooled by the original air cooling mechanism and then enters the spiral tube 1. The flowing water in the sedimentation tank is used to further cool the hydraulic oil, ensuring that the temperature of the hydraulic oil is low enough when it enters the oil tank. Even if the temperature of the hydraulic oil rises due to long-term operation and sun exposure, it will not reach the level of high oil temperature alarm. In addition, water cooling, as a permanent cooling method, greatly reduces the frequency of starting the air cooling mechanism, achieving the effect of energy saving and emission reduction. In addition, in winter, since the water temperature in the sedimentation tank is higher than the air temperature and the water is in a flowing state, compared with the situation where the pipeline is directly exposed to the atmosphere (the low temperature increases the viscosity of the hydraulic oil, resulting in a decrease in the self-priming ability of the oil pump, an increase in the pressure loss of the hydraulic system, and even an inability to start in severe cases), the present solution immerses the spiral tube 1 in the sedimentation tank, which can prevent the viscosity of the oil in the spiral tube 1 from being too high, which is beneficial to ensuring the fluidity of the hydraulic oil.

[0032] Embodiment 2: Considering that the treatment function of the sedimentation tank is to flocculate impurities by adding reagents and precipitate them under the action of gravity, it is very likely that more precipitated impurities will adhere to the spiral tube 1, affecting the heat exchange effect. Therefore, a cleaning device is required to regularly clean the spiral tube 1. The cleaning device is: Please refer to the attached Figure 3 -Attached Figure 5 A cleaning mechanism for cleaning the surface of the spiral tube 1 is provided on one side of the end of the spiral tube 1. The cleaning mechanism is connected to a lifting mechanism for driving the cleaning mechanism to move between being immersed in the sedimentation tank and being located above the water surface of the sedimentation tank. The lifting mechanism is connected to a translation mechanism 8 for driving the lifting mechanism and the cleaning mechanism to move horizontally. The translation mechanism 8 is located above the water surface of the sedimentation tank, and the translation mechanism 8 is located on the same side of the two straight tubes 11.

[0033] In this embodiment, the cleaning mechanism includes an outer cylinder carrier 3 in a cylindrical shape and an inner cylinder carrier 4 coaxially located on the inner side of the outer cylinder carrier 3, the central axis of the outer cylinder carrier 3 is parallel to the central axis of the spiral tube 1, the inner diameter of the outer cylinder carrier 3 is larger than the outer diameter of the main body of the spiral tube 1, the outer diameter of the inner cylinder carrier 4 is smaller than the inner diameter of the main body of the spiral tube 1, and a strip-shaped clearance opening 31 extending along its length direction is provided on the top of the outer cylinder carrier 3, one end of the strip-shaped clearance opening 31 extends to the end face of the outer cylinder carrier 3 facing the spiral tube 1 and is aligned with the straight tube 11, the inner surface of the outer cylinder carrier 3 is evenly provided with first bristles 6 for brushing the outer ring surface of the main part of the spiral tube 1; the outer surface of the inner cylinder carrier 4 is evenly provided with second bristles 5 for brushing the inner ring surface of the main part of the spiral tube 1.

[0034] In this embodiment, the lifting mechanism includes an electric telescopic rod 7 and a connecting rod 9 connected to the working end of the electric telescopic rod 7. The connecting rod 9 is fixedly connected to a fixed plate 2 on one side connected to the cleaning mechanism. The outer cylinder carrier 3 and the inner cylinder carrier 4 are connected together at one end facing away from the spiral tube 1 through the fixed plate 2. A through hole 21 is provided on the fixed plate 2 to facilitate the discharge of water entering the outer cylinder carrier 3 and the inner cylinder carrier 4. The electric telescopic rod 7 is located above the cleaning mechanism.

[0035] In this embodiment, the translation mechanism 8 includes a screw rod 81 parallel to the central axis of the spiral tube 1 and a slider 82 threadedly mounted on the screw rod 81. The slider 82 is connected to the lifting mechanism through a connecting block 83. One end of the screw rod 81 is connected to a motor for driving the screw rod 81 to rotate, so as to realize electric drive. The translation mechanism 8 also includes a protective shell 84 with a strip opening 10 on one side. The screw rod 81 and the slider 82 are both located inside the protective shell 84. The connecting block 83 passes through the strip opening 10 and can move along the length direction of the strip opening 10. The length direction of the strip opening 10 is parallel to the length direction of the screw rod 81. When the translation mechanism 8 is started, the screw rod 81 rotates. Due to the limiting effect of the connecting block 83 along the strip opening 10, the screw rod 81 drives the slider 82 to move horizontally, and the electric telescopic rod 7 moves accordingly through the connecting block 83, and drives the fixed disk 2, the outer cylinder carrier 3 and the inner cylinder carrier 4 to move synchronously through the connecting rod 9.

[0036] In the initial state, the outer cylinder carrier 3 is located above the water surface of the sedimentation tank and beside the spiral tube 1. When cleaning the spiral tube 1, start the electric telescopic rod 7 to drive the outer cylinder carrier 3 and the inner cylinder carrier 4 to descend until they are coaxially aligned with the spiral tube 1; then start the translation mechanism 8 to drive the outer cylinder carrier 3 and the inner cylinder carrier 4 to move to the side where the spiral tube 1 is located. During the movement, the setting of the strip-shaped clearance opening 31 can prevent the straight tube 11 from hindering the movement of the outer cylinder carrier 3 and the inner cylinder carrier 4. The outer cylinder carrier 3 moves outside the spiral tube 1, and at the same time, the inner cylinder carrier 4 moves inside the spiral tube 1. The first brush 6 brushes the outer ring surface of the main part of the spiral tube 1, and the second brush 5 brushes the inner ring surface of the main part of the spiral tube 1, thereby achieving a more comprehensive cleaning of the spiral tube 1, which is beneficial to ensure the heat exchange effect of the spiral tube 1.

[0037] The rest is the same as the first embodiment.

[0038] Embodiment 3: This embodiment differs from Embodiment 2 in that:

[0039] The cleaning mechanism includes a cylindrical inner cylinder carrier 4, the outer diameter of which is smaller than the inner diameter of the main body of the spiral tube 1, the central axis of the inner cylinder carrier 4 is parallel to the central axis of the spiral tube 1, and the outer surface of the inner cylinder carrier 4 is evenly provided with second bristles 5 for brushing the inner ring surface of the main part of the spiral tube 1.

[0040] In this embodiment, one end of the screw rod 81 is connected to a handle for driving the screw rod 81 to rotate, so as to manually drive the screw rod 81 to rotate.

[0041] The rest is the same as the second embodiment.

[0042] Embodiment 4: This embodiment differs from Embodiment 2 in that:

[0043] The cleaning mechanism includes an outer cylinder carrier 3 in a cylindrical shape, the inner diameter of the outer cylinder carrier 3 is larger than the outer diameter of the main body of the spiral tube 1, the central axis of the outer cylinder carrier 3 is parallel to the central axis of the spiral tube 1, and a strip-shaped clearance opening 31 extending along its length direction is opened on the top of the outer cylinder carrier 3, one end of the strip-shaped clearance opening 31 extends to the end face of the outer cylinder carrier 3 facing the spiral tube 1 and is aligned with the straight tube 11, and the inner surface of the outer cylinder carrier 3 is evenly provided with first bristles 6 for brushing the outer ring surface of the main part of the spiral tube 1.

[0044] The rest is the same as the second embodiment.

[0045] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A tube-disc water cooling device for cooling hydraulic oil of a sedimentation tank scraper, characterized in that: The invention comprises a spiral tube (1) immersed in a sedimentation tank, wherein both ends of the spiral tube (1) are provided with straight tubes (11) extending above the water surface of the sedimentation tank, and one of the straight tubes (11) is connected to the output end of the original air cooling mechanism, and the other straight tube (11) is connected to the input end of the oil tank; a cleaning mechanism for cleaning the surface of the spiral tube (1) is provided on one side of the end of the spiral tube (1); the cleaning mechanism is connected to a lifting mechanism for driving the cleaning mechanism to move between being immersed in the sedimentation tank and being located above the water surface of the sedimentation tank; the lifting mechanism is connected to a translation mechanism (8) for driving the lifting mechanism and the cleaning mechanism to move horizontally; the translation mechanism (8) is located above the water surface of the sedimentation tank.

2. A tube-disc water cooling device for cooling hydraulic oil of a sedimentation tank scraper according to claim 1, characterized in that: The inner diameter of the main body of the spiral tube (1) is 200 mm, and the length of the straight tube (11) is 1100 mm.

3. A tube-disc water cooling device for cooling hydraulic oil of a sedimentation tank scraper according to claim 1, characterized in that: The cleaning mechanism comprises an outer cylinder carrier (3) in a cylindrical shape, the inner diameter of the outer cylinder carrier (3) being larger than the outer diameter of the main body of the spiral tube (1), the central axis of the outer cylinder carrier (3) being parallel to the central axis of the spiral tube (1), the top of the outer cylinder carrier (3) being provided with a strip-shaped clearance opening (31) extending along its length direction, one end of the strip-shaped clearance opening (31) extending to the end surface of the outer cylinder carrier (3) facing the spiral tube (1) and aligned with the straight tube (11), and the inner surface of the outer cylinder carrier (3) being evenly provided with first bristles (6).

4. A tube-disc water cooling device for cooling hydraulic oil of a sedimentation tank scraper according to claim 1 or 3, characterized in that: The cleaning mechanism comprises a cylindrical inner cylinder carrier (4), the outer diameter of the inner cylinder carrier (4) being smaller than the inner diameter of the main body of the spiral tube (1), the central axis of the inner cylinder carrier (4) being parallel to the central axis of the spiral tube (1), and second bristles (5) being evenly arranged on the outer surface of the inner cylinder carrier (4).

5. The tube-disc type water cooling device for cooling hydraulic oil of a sedimentation tank scraper according to claim 1, characterized in that: The lifting mechanism comprises an electric telescopic rod (7) and a connecting rod (9) connected to the working end of the electric telescopic rod (7), the connecting rod (9) being fixedly connected to the cleaning mechanism, and the electric telescopic rod (7) is located above the cleaning mechanism.

6. A tube-disc water cooling device for cooling hydraulic oil of a sedimentation tank scraper according to claim 5, characterized in that: The side of the connecting rod (9) connected to the cleaning mechanism is fixedly connected to a fixing plate (2), and a through hole (21) is provided on the fixing plate (2).

7. The tube-disc type water cooling device for cooling hydraulic oil of a sedimentation tank scraper according to claim 1, characterized in that: The translation mechanism (8) comprises a screw rod (81) parallel to the central axis of the spiral tube (1) and a slider (82) thread-fittedly mounted on the screw rod (81); the slider (82) is connected to the lifting mechanism via a connecting block (83); one end of the screw rod (81) is connected to a motor or a handle for driving the screw rod (81) to rotate.

8. A tube-disk type water cooling device for cooling hydraulic oil of a sedimentation tank scraper according to claim 7, characterized in that: The translation mechanism (8) comprises a protective housing (84) with a strip opening (10) on one side, the screw rod (81) and the slider (82) are both located inside the protective housing (84), the connecting block (83) passes through the strip opening (10) and can move along the length direction of the strip opening (10), and the length direction of the strip opening (10) is parallel to the length direction of the screw rod (81).

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