Detachable simple water taking head with desilting function

Abstract

The utility model relates to a detachable simple water taking head with a desilting function, which belongs to water taking devices and comprises a first water inlet pipe, n1 first water inlet holes are arranged on the pipe wall of the first water inlet pipe, and n2 desilting hoppers are arranged at the bottom of the first water inlet pipe along the length direction of the first water inlet pipe. A second water inlet pipe is arranged in the first water inlet pipe in a sleeved mode, the second water inlet pipe is longer than the first water inlet pipe, n3 second water inlet holes are formed in the pipe wall, arranged in the first water inlet pipe in a sleeved mode, of the second water inlet pipe, and the size of the second water inlet holes is smaller than that of the first water inlet hole; n4 sand discharging holes are formed in the bottom of the pipe wall, sleeved with the first water inlet pipe, of the second water inlet pipe in the length direction of the water pipe; and the right end of the second water inlet pipe is detachably connected with one end of the water taking main pipe. The device has an automatic desilting function, adopts twice water inlet filtering measures, prolongs the precipitation time through the design of a raw water flow channel, effectively improves the desilting effect, ensures the water supply safety, and is convenient to operate.

Description

Technical Field

[0001] The utility model belongs to a water intake device, in particular to a detachable simple water intake head with a sand discharge function. Background Art

[0002] The water intake head is a very important structure in the water intake project, especially in mountainous rivers, where grass blockage, sand siltation, and serious equipment wear and tear can easily cause water outages. The water quality of the water directly affects the operating safety of the equipment in the pump station or water plant connected to it. Usually, the traditional water intake head types include: trumpet water intake head, mushroom-shaped water intake head, fish-shaped hood-type water intake head, box-type water intake head, etc. Although these water intake heads can reduce the floating objects and silt brought in to a certain extent due to their structural characteristics, they often do not have the function of automatic sand discharge. On the one hand, excessive silt is easy to accumulate in the water intake pipeline, causing blockage of the water intake pipeline and reducing the water supply guarantee rate. On the other hand, silt entering the water pump will cause wear of the impeller, affecting the normal operation of the water pump, while increasing the load of subsequent sedimentation structures and affecting water supply safety. Summary of the invention

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of the utility model is to provide a detachable simple water intake head with a sand discharge function, which is simple to manufacture, easy to install, has a sand discharge function, a high silt and debris removal rate, and can effectively improve the safety and stability of water supply.

[0004] The purpose of the utility model is achieved through the following scheme:

[0005] A detachable simple water intake head with a sand discharge function, comprising a first water inlet pipe, n1 first water inlet holes are arranged on the wall of the first water inlet pipe, and n2 sand discharge buckets are arranged at the bottom along the length direction of the first water inlet pipe;

[0006] A second water inlet pipe is sleeved inside the first water inlet pipe, and the second water inlet pipe is longer than the first water inlet pipe. The second water inlet pipe sleeved inside the first water inlet pipe is provided with n3 second water inlet holes on its wall, and the size of the second water inlet hole is smaller than the size of the first water inlet hole. The bottom of the second water inlet pipe sleeved inside the first water inlet pipe is provided with n4 sand discharge holes along the length direction of the second water inlet pipe.

[0007] The left end of the first water inlet pipe is blocked, and the right end is detachably connected to the second water inlet pipe;

[0008] The left end of the second water inlet pipe is blocked and fixed to the left end of the first water inlet pipe, and the right end is detachably connected to one end of the water intake main pipe.

[0009] Furthermore, the first water inlet holes are evenly distributed in the lower half of the pipe wall of the first water inlet pipe, and the second water inlet holes are evenly distributed in the upper half of the pipe wall.

[0010] Furthermore, the sand discharge buckets are evenly distributed along the length direction of the first water inlet pipe.

[0011] Furthermore, the sand discharge holes are evenly distributed along the length direction of the second water inlet pipe.

[0012] Furthermore, the number of the sand discharge holes is the same as that of the sand discharge buckets, and they are vertically aligned and distributed.

[0013] Furthermore, the first water inlet hole is a strip-shaped hole.

[0014] Furthermore, the second water inlet hole is a circular hole.

[0015] Furthermore, a flange is welded to the right end of the second water inlet pipe, and the right end of the second water inlet pipe is detachably connected to one end of the water intake main pipe through the flange.

[0016] Furthermore, n5 welded steel bars are evenly distributed along the circumferential direction at the left end of the second water inlet pipe, and the left end of the second water inlet pipe is fixed to the left end of the first water inlet pipe by the welded steel bars.

[0017] Furthermore, a flange is welded to the left end of the first water inlet pipe, and the left end of the first water inlet pipe is connected and sealed with a blind flange through the flange.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. The water intake head provided by the utility model has a double-layer water inlet filtration structure. The first water inlet pipe realizes the first filtration, which can effectively block the entry of large-sized floating objects, ice, and sand and gravel. The raw water after preliminary sedimentation is then filtered through the second water inlet pipe (small-sized water inlet holes), and a part of the slightly larger silt is intercepted for the second time. After two screening and sedimentation, the silt content entering the water intake main pipe can be effectively reduced, ensuring the safety and stability of water supply.

[0020] 2. The sand discharge holes in the second water inlet pipe and the sand discharge bucket in the first water inlet pipe can fully discharge the silt at the water intake head, and have an automatic sand discharge function. The sand removal effect is effectively improved, and even the sand settling tank in the subsequent structure can be eliminated, saving investment, reducing the blockage and wear of the water pump impeller channel by silt impurities, and extending the service life of the equipment.

[0021] 3. n1 first water inlet holes are evenly distributed in the lower half of the first water inlet pipe, and n3 second water inlet holes are evenly distributed in the upper half of the second water inlet pipe wall sleeved inside the first water inlet pipe, which can increase the sedimentation time of raw water and improve the quality of raw water. That is, when taking water from the water intake head, the raw water enters the first water inlet pipe from the first water inlet holes distributed in the lower half, and the water flows in from bottom to top, which increases the sedimentation time of the raw water between the first water inlet pipe and the second water inlet pipe, and then enters the second water inlet pipe from the second water inlet holes distributed in the upper half, and is filtered and precipitated again, which can effectively improve the quality of raw water.

[0022] 4. The second water inlet pipe is connected to the water intake main pipe through a flange, which can realize convenient connection between the water intake head and the water intake main pipe, and is easy to install, disassemble, clean and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the water intake head of the utility model;

[0025] Figure 2 1 is a schematic diagram of the structure of the first water inlet pipe;

[0026] Figure 3 2 is a schematic diagram of the structure of the second water inlet pipe;

[0027] Figure 4 It is a schematic diagram of the flow direction of raw water at the water intake head.

[0028] In the figure: 1-first water inlet pipe; 2-second water inlet pipe; 3-water intake main pipe; 4-first water inlet hole; 5-second water inlet hole; 6-sand discharge hopper; 7-sand discharge hole; 8-flange one; 9-flange two; 10-blind flange; 11-rebar; 12-flange three. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment will be clearly and completely described below in conjunction with the drawings in the embodiment. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 invention.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0032] Example

[0033] like Figure 1 As shown, a detachable simple water intake head with a sand discharge function includes a first water inlet pipe 1, and n1 first water inlet holes 4 are arranged on the wall of the first water inlet pipe 1. In this embodiment, the first water inlet holes 4 are strip holes, and are evenly distributed in the lower half of the wall of the first water inlet pipe 1. The first water inlet holes 4 are set as larger strip holes, which can effectively intercept large-sized floating objects, silt, ice and other large-sized debris. There are n2 sand discharge hoppers 6 evenly distributed along the length direction at the bottom of the first water inlet pipe 1. The raw water flows through the first water inlet hole 4 into the first water inlet pipe 1 for preliminary sedimentation, and the silt produced by the sedimentation is automatically discharged through the sand discharge hopper 6.

[0034] A second water inlet pipe 2 is sleeved inside the first water inlet pipe 1, and the second water inlet pipe 2 is longer than the first water inlet pipe 1. In this embodiment, the second water inlet pipe is aligned with the left end of the first water inlet pipe, and the second water inlet pipe is welded with a flange 12 at a position equal to the first water inlet pipe. n3 second water inlet holes 5 are arranged on the wall of the second water inlet pipe 2 sleeved inside the first water inlet pipe, and the size of the second water inlet hole 5 is smaller than the size of the first water inlet hole 4. In this embodiment, the second water inlet holes 5 are circular holes and are evenly distributed in the upper half of the wall of the second water inlet pipe 2. Since the second water inlet hole 5 is smaller in size, the interception ability is stronger, and smaller silt can be effectively removed. n4 sand discharge holes 7 are evenly distributed at the bottom of the wall of the second water inlet pipe 2 sleeved inside the first water inlet pipe along the length direction of the second water inlet pipe. The number of sand discharge holes 7 is the same as that of the sand discharge bucket 6, and they are vertically aligned and distributed. The raw water enters the second water inlet pipe 2 through the second water inlet hole 5, and the precipitated silt can be discharged from the second water inlet pipe through the sand discharge hole 7 at the bottom of the second water inlet pipe and enter the first water inlet pipe 1, and then automatically discharged by the sand discharge hopper 6 at the bottom of the first water inlet pipe. The arrangement of the sand discharge hole 7 and the sand discharge head 6 can fully discharge the silt at the water intake head, and the sand removal effect is effectively improved, and even the sand settling tank in the subsequent structure can be eliminated, saving investment, reducing the blockage and wear of the water pump impeller channel by silt impurities, extending the service life of the equipment, and ensuring water supply safety. In addition, since the sand discharge hole 7 and the sand discharge hopper 6 are vertically aligned, it is easier for the silt deposited inside the second water inlet pipe to be discharged from the water intake head through the sand discharge hole and the sand discharge hopper in sequence, and the sand discharge effect is better.

[0035] Flanges 2 9 are welded on both ends of the first water inlet pipe 1. The left end flange 2 9 is sealed by connecting with a blind flange 10. The right end flange 2 9 is detachably connected to the second water inlet pipe welding flange 3 12, which is more convenient for installation and later disassembly and cleaning.

[0036] The left end of the second water inlet pipe 2 is welded and n5 welded steel bars 11 are evenly distributed along the circumferential direction. The left end of the second water inlet pipe 2 is fixedly connected to the left end of the first water inlet pipe through the welded steel bars 11. In this embodiment, the number of steel bars is 8, and a flange plate 8 is welded to the right end of the second water inlet pipe, which is detachably connected to the flange plate 8 welded to one end of the water intake main pipe 3 through the flange plate 8. This connection method makes it easy to connect the water intake head with the water intake main pipe 3, and is easy to disassemble, clean and replace.

[0037] The working mode of this water intake head:

[0038] The water intake head is installed at one end of the water intake main pipe 3. The installation slope of the water intake head should be consistent with the slope of the water intake main pipe 3, and the pipeline installation elevation should be ensured to be below the operating hydraulic gradient line. The water flows through the water intake head and the water intake main pipe to the water inlet forebay in sequence through the action of gravity, and then the water pump draws water from the forebay.

[0039] In the water intake head of the utility model, since the first water inlet hole 4 is arranged on the lower half of the wall of the first water inlet pipe 1, and the second water inlet hole 5 is arranged on the upper half of the wall of the second water inlet pipe 2 which is sleeved inside the first water inlet pipe, the raw water enters the first water inlet pipe 1 through the first water inlet hole 4, flows from bottom to top inside the first water inlet pipe 1 and realizes preliminary sedimentation (i.e. the first sedimentation), and then the raw water enters the second water inlet pipe 2 through the second water inlet hole 5 arranged in the upper half, and the raw water after being precipitated again (i.e. the second sedimentation) under the action of gravity flows into the water intake main pipe 3 from the second water inlet pipe 2.

[0040] The position design of the first water inlet hole and the second water inlet hole can effectively increase the sedimentation time and frequency of raw water and improve the quality of raw water. At the same time, in this process, the silt that is initially precipitated inside the first water inlet pipe 1 is directly discharged from the sand discharge hopper 6 at the bottom of the first water inlet pipe; the silt that is generated after re-precipitation inside the second water inlet pipe 2 is discharged to the first water inlet pipe 1 through the sand discharge hole 7 set at the bottom of the second water inlet pipe, and then discharged from the sand discharge hopper 6 at the bottom of the first water inlet pipe. The setting of the sand discharge hole 7 and the sand discharge hopper 6 can fully discharge the silt at the water intake head, and the sand removal effect is effectively improved.

[0041] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0042] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A detachable simple water intake head with sand discharge function, characterized in that: It comprises a first water inlet pipe, wherein n1 first water inlet holes are arranged on the wall of the first water inlet pipe, and n2 sand discharge hoppers are arranged at the bottom of the first water inlet pipe along the length direction of the first water inlet pipe; A second water inlet pipe is sleeved inside the first water inlet pipe, and the second water inlet pipe is longer than the first water inlet pipe. The second water inlet pipe sleeved inside the first water inlet pipe is provided with n3 second water inlet holes on its wall, and the size of the second water inlet hole is smaller than the size of the first water inlet hole. The bottom of the second water inlet pipe sleeved inside the first water inlet pipe is provided with n4 sand discharge holes along the length direction of the second water inlet pipe. The left end of the first water inlet pipe is blocked, and the right end is detachably connected to the second water inlet pipe; The left end of the second water inlet pipe is blocked and fixed to the left end of the first water inlet pipe, and the right end is detachably connected to one end of the water intake main pipe.

2. A detachable simple water intake head with sand discharge function according to claim 1, characterized in that: The first water inlet holes are evenly distributed on the lower half of the pipe wall of the first water inlet pipe, and the second water inlet holes are evenly distributed on the upper half of the pipe wall.

3. The detachable simple water intake head with sand discharge function according to claim 1, characterized in that: The sand discharge hoppers are evenly distributed along the length direction of the first water inlet pipe.

4. The detachable simple water intake head with sand discharge function according to claim 1, characterized in that: The sand discharge holes are evenly distributed along the length direction of the second water inlet pipe.

5. The detachable simple water intake head with sand discharge function according to claim 1, characterized in that: The number of the sand discharge holes is the same as that of the sand discharge buckets, and they are vertically aligned and distributed.

6. The detachable simple water intake head with sand discharge function according to claim 1, characterized in that: The first water inlet hole is a strip-shaped hole.

7. The detachable simple water intake head with sand discharge function according to claim 1, characterized in that: The second water inlet hole is a circular hole.

8. The detachable simple water intake head with sand discharge function according to claim 1, characterized in that: A flange is welded on the right end of the second water inlet pipe, and the right end of the second water inlet pipe is detachably connected to one end of the water intake main pipe through the flange.

9. The detachable simple water intake head with sand discharge function according to claim 1, characterized in that: The left end of the second water inlet pipe is evenly distributed with n5 welded steel bars along the circumferential direction, and the left end of the second water inlet pipe is fixed to the left end of the first water inlet pipe by the welded steel bars.

10. The detachable simple water intake head with sand discharge function according to claim 1, characterized in that: A flange is welded on the left end of the first water inlet pipe, and the left end of the first water inlet pipe is connected and sealed with a blind flange through the flange.

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