Water body fixed depth water intake device

Abstract

The present invention relates to a water body fixed depth water intake device, which includes a water intake main pipe connecting the water body and a water plant, the water intake main pipe runs through the water-facing surface of the protective dike of the water body, the pipe mouth of the water intake main pipe is connected to multiple water intake mechanisms through multiple tees, the multiple water intake mechanisms are arranged horizontally along the water body, and the tees of two adjacent water intake mechanisms can be horizontally rotatably connected, the water intake mechanism includes a water intake floating pipe, a water intake head, a floating body and a winch, the water intake head is connected to one end of the water intake floating pipe, the other end of the water intake floating pipe is connected to the tee, the floating body is hinged to the water intake head, the winch is fixedly installed on the top of the protective dike, and the steel wire rope of the winch is connected to the floating body. The present invention uses a water intake head with a float to ensure that high-quality water in the upper layer of the water body can be taken; the setting of the tension self-sensing winch can control the movement range of the water intake head and the water intake floating pipe by automatically adjusting the tension of the steel wire rope connected to the water intake head.

Description

Technical Field

[0001] The invention relates to the technical field of water intake, and in particular to a water body constant depth water intake device. Background Art

[0002] In urban and rural water supply, existing reservoirs are often used as important water sources for water plants. Considering the utilization of reservoir capacity, pipelines are laid near the dead water level of the reservoir.

[0003] During the rainy season, when the reservoir capacity near the dead water level is large, the runoff within the catchment area will bring sediment into the reservoir. Due to the density flow, the turbidity of the water near the bottom of the reservoir will be significantly higher than in other seasons.

[0004] In addition, when the iron and manganese content in the soil around the reservoir is relatively high, or the iron and manganese content in the upstream basin is relatively high, during the rainy season, the iron and manganese in the soil will enter the reservoir with soil erosion, causing a large amount of iron and manganese in various forms to accumulate in the reservoir mud. Under high dissolved oxygen conditions, they exist in the form of ferric oxide and manganese dioxide and are stable in the mud. When the seasons change, the surface water temperature of the reservoir water body rises, and the bottom water temperature is lower, and the temperature difference between the upper and lower layers is obvious, the water body exchanges water due to the temperature changes between the upper and lower layers, and algae and other plankton in the water die and sink to the bottom of the reservoir and decompose by consuming oxygen. This will cause the water layer at the bottom of the reservoir to be hypoxic. Under hypoxic conditions, a large amount of iron and manganese in the reservoir bottom mud is reduced to divalent iron and divalent manganese and dissolved in the water, causing the iron and manganese content of the reservoir water to exceed the source water quality standards.

[0005] The above two reasons cause troubles in water treatment at water plants, affecting the turbidity of effluent and the compliance rate of iron and manganese content. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides a water body fixed water depth water intake device which can make good use of the reservoir capacity and obtain high-quality water sources from the upper layer of the water body.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the water body fixed water depth water intake device comprises a water intake main pipe connecting the water body and the water plant, the water intake main pipe runs through the water-facing surface of the protective dike of the water body, the pipe mouth of the water intake main pipe is connected to a plurality of water intake mechanisms through a plurality of tees, the plurality of water intake mechanisms are arranged horizontally along the water body, and the tees of two adjacent water intake mechanisms can be horizontally rotatably connected;

[0008] The water intake mechanism comprises a water intake floating pipe, a water intake head and a floating body, wherein the water intake head is connected to one end of the water intake floating pipe, the other end of the water intake floating pipe is connected to a tee, and the floating body is hinged to the water intake head.

[0009] In a preferred embodiment of the water body constant depth water intake device provided by the present invention, the tees of two adjacent water intake mechanisms are connected by a horizontally rotating underwater sleeve joint.

[0010] In a preferred embodiment of the water body constant water depth water intake device provided by the present invention, each of the tees is fixed to a steel-concrete fixed pier through a sliding support, and the steel-concrete fixed pier is cast as one piece with the protective embankment.

[0011] In a preferred embodiment of the water body constant water depth water intake device provided by the present invention, the water intake floating pipe is a self-floating pipe formed by connecting multiple flanges, preferably a HDPE pipe.

[0012] In a preferred embodiment of the water body constant water depth water intake device provided by the present invention, the water intake head adopts a steel water intake head with a box-type structure, and the water intake head is provided with a lower side grille protection water inlet.

[0013] In a preferred embodiment of the water body constant water depth water intake device provided by the present invention, the floating body includes a buoyancy box, a pin shaft, a first connecting member and a second connecting member. The buoyancy box is provided with two, which are arranged on both sides of the water intake head. The two buoyancy boxes are connected together by a first connecting member, and the water intake head and the buoyancy box are rotatably connected by a second connecting member and a pin shaft.

[0014] In a preferred embodiment of the water body constant water depth water intake device provided by the present invention, the length of the second connecting member is such that the water inlet of the water intake head is located 6 to 10 meters below the water level.

[0015] In a preferred embodiment of the water body constant water depth water intake device provided by the present invention, the water intake main pipe is arranged between the dead water level and the low water level.

[0016] In a preferred embodiment of the water body constant water depth water intake device provided by the present invention, the water intake device also includes a winch, the winch is fixedly installed on the top of the protective dike, and the steel wire rope of the winch is connected to the floating body.

[0017] In a preferred embodiment of the water body constant water depth water intake device provided by the present invention, the winch is a tension self-sensing winch.

[0018] Compared with the prior art, the water body fixed water depth water intake device provided by the present invention has the following beneficial effects:

[0019] 1. The present invention utilizes a water intake head with a steel "lower side grille protection water inlet" with a floating body to ensure that high-quality water from the upper layer of the water body can be taken, while preventing garbage and large fish from entering the water intake pipe;

[0020] Second, the water intake floating pipe adopts "self-floating multi-section flange connected HDPE pipe", which is easy to connect and does not require additional floats, reducing investment;

[0021] 3. Use horizontal rotating underwater sleeve joints to organically connect adjacent water intake floating pipes to ensure the flexibility of system operation;

[0022] 4. The setting of the tension self-sensing winch can control the movement range of the water intake head and the water intake floating pipe by automatically adjusting the tension of the wire rope connected to the water intake head, thereby ensuring the purpose of the water intake head to obtain high-quality water at a fixed water depth and ensuring the safety of the water intake facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0024] Figure 1 It is a plan view of the fixed water depth water intake device provided by the present invention;

[0025] Figure 2 yes Figure 1 The AA section view of the water body fixed water depth water intake device provided;

[0026] Figure 3 yes Figure 1 Provided water depth fixed water intake device BB cross-sectional view;

[0027] Figure 4 yes Figure 1 A local enlarged view of location I is provided;

[0028] Figure 5 yes Figure 1 A partial enlarged view of H provided;

[0029] Figure 6 yes Figure 2 A partial enlarged view of G provided;

[0030] Figure 7 yes Figure 3 A local enlarged view of location K is provided. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0032] Please also read Figure 1 to Figure 7 The water body fixed water depth water intake device includes a water intake main pipe 1 connecting the water body and the water plant, and the water intake main pipe 1 passes through the water-facing surface of the protective dike 2 of the water body. Preferably, the water intake main pipe 1 of this embodiment is arranged between the dead water level and the low water level, and the pipe mouth of the water intake main pipe 1 is connected to a plurality of water intake mechanisms 4 through a plurality of tees 3. The plurality of water intake mechanisms 4 are arranged horizontally along the water body, and the tees 3 of two adjacent water intake mechanisms 4 can be horizontally rotatably connected. Preferably, the tees 3 are made of steel tees.

[0033] The water intake mechanism 4 includes a water intake floating pipe 41 , a water intake head 42 and a float 43 . The water intake head 42 is connected to one end of the water intake floating pipe 41 , the other end of the water intake floating pipe 41 is connected to the tee 3 , and the float 43 is hinged to the water intake head 42 .

[0034] This embodiment uses a water intake floating pipe to connect the water intake head, and uses a float to float the water intake head below the water level of the water body, so as to obtain high-quality water from the upper layer of the water body. Example

[0035] In order to improve the flexibility of the water intake floating pipe when the water level changes, based on the first embodiment, the tees 3 of two adjacent water intake mechanisms 4 are connected by a horizontally rotating underwater sleeve 5 joint. Example

[0036] In order to fix the water intake mechanism, on the basis of Example 1 or Example 2, each of the tees 3 of this embodiment is fixed to the steel-concrete fixed pier 7 through a sliding support 6, and the steel-concrete fixed pier 7 is cast as one with the protective dike 2. Example

[0037] On the basis of the above-mentioned embodiment, the water intake floating pipe 41 of this embodiment adopts a self-floating pipe formed by connecting multiple flanges, preferably a HDPE pipe. The HDPE pipe has the characteristic of floating in water with a specific gravity close to that of water, thereby avoiding the problem that water intake pipes made of other materials have heavy weight and need to add floats, thereby reducing investment. Example

[0038] On the basis of the above-mentioned embodiment, the water intake head 42 of this embodiment adopts a box-type steel water intake head, and the water intake head 42 is provided with a lower side grille protection water inlet 420. The steel "lower side grille protection water inlet" water intake head can prevent garbage and large fish from entering the water intake pipe. Example

[0039] On the basis of the above embodiments, the float 43 of this embodiment includes a pontoon 431, a pin 432, a first connecting member 433 and a second connecting member 434. The pontoon 431 is provided with two, which are arranged on both sides of the water intake head 42. The pontoon 431 is preferably a steel pontoon with adjustable counterweight. The two pontoons 431 are connected together by a first connecting member 433. The water intake head 42 and the pontoon 431 are rotatably connected by the second connecting member 434 and the pin 432.

[0040] Preferably, the length of the second connecting member 434 is such that the water inlet 420 of the water intake head 42 is located 6 to 10 meters below the water level, and can be specifically set to 8 meters. Example

[0041] On the basis of the above embodiment, the water intake device of this embodiment also includes a winch 8, which is fixedly installed on the top of the protective dike 2. The steel wire rope 80 of the winch 8 is connected to the floating body 43. The winch 8 is preferably a tension self-sensing winch.

[0042] The tension self-sensing winch can automatically adjust the tension of the wire rope connected to the water intake head to meet the purpose of taking water at a certain water depth. The specific adjustment method is as follows:

[0043] When the water intake head with a buoyancy box that meets the set depth maintains balance in the water body, the tension of the wire rope connected to the water intake head has a fixed value;

[0044] When the water level drops, the buoyancy of the float box decreases, and the tension of the wire rope connected to the water intake head increases. When the value detected by the induction device in the tension self-sensing winch exceeds the set value, the winch motor is turned on, and the brake mechanism of the winch is automatically released at the same time, the winch motor is controlled to release the rope speed, gradually convey the wire rope, and automatically detect its tension, and constantly compare it with the set value. When the set value is reached, the winch motor is turned off, and the brake mechanism is started to brake at the same time;

[0045] When the water level rises, the buoyancy of the float box becomes larger, and the tension of the wire rope connected to the water intake head becomes smaller. When the sensing device in the tension self-sensing winch detects that its value is lower than the set value, the winch motor is turned on, and the brake mechanism of the winch is automatically released at the same time, the winch motor's rope retraction speed is controlled, the wire rope is gradually recovered, and its tension is automatically detected and continuously compared with the set value. When the set value is reached, the winch motor is turned off and the brake mechanism is started at the same time.

[0046] The above control measures can effectively fix the length of the wire rope connected to the water intake head, automatically control the tension of the wire rope, and control the movement range of the water intake head and the water intake pipe. While ensuring that the water intake head can obtain high-quality water at a fixed water depth, it also ensures the safety of the water intake facilities.

[0047] Preferably, in the above example, a knife-type gate 9 may be provided between the three-way valves 3 to facilitate maintenance.

[0048] Preferably, in the above example, the water intake main 1 is provided with a valve and a valve well 10 on the back water surface of the protection dike.

[0049] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A water body fixed depth water intake device, comprising a water intake main connecting the water body and a water plant, characterized in that: The water intake main pipe penetrates the water body and the water-facing surface of the protective embankment is set between the dead water level and the low water level. The pipe mouth of the water intake main pipe is connected to multiple water intake mechanisms through multiple tees. The multiple water intake mechanisms are arranged horizontally along the water body, and the tees of two adjacent water intake mechanisms are horizontally rotatably connected. The water intake mechanism includes a water intake floating pipe, a water intake head, a floating body and a winch. The water intake head is connected to one end of the water intake floating pipe and is provided with a lower side grille protection water inlet. The other end of the water intake floating pipe is connected to a tee. The floating body is hinged to the water intake head. The winch adopts a tension self-sensing winch, which is fixedly installed on the top of the protective dike. The steel wire rope of the winch is connected to the floating body. The floating body includes a pontoon, a pin, a first connecting member and a second connecting member. There are two pontoons, which are arranged on both sides of the water intake head. The two pontoons are connected together by a first connecting member. The water intake head and the pontoon are rotatably connected by a second connecting member and a pin. The length of the second connecting member makes the water inlet of the water intake head 6 to 10 meters below the water level.

2. The water body fixed depth water intake device according to claim 1, characterized in that: The tees of two adjacent water intake mechanisms are connected via a horizontally rotating underwater sleeve joint.

3. The water body fixed water depth water intake device according to claim 2, characterized in that: Each of the tees is fixed to a steel-concrete fixed pier through a sliding support, and the steel-concrete fixed pier is cast into one piece with the protective embankment.

4. The water body fixed depth water intake device according to claim 1, characterized in that: The water intake floating pipe is a self-floating pipe formed by connecting multiple flanges.

5. The water body fixed depth water intake device according to claim 1, characterized in that: The water intake head is a steel water intake head with a box-shaped structure.

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