Self-adaptive water temperature control curtain layered water taking device suitable for reservoir water taking tower

Abstract

The invention provides a self-adaptive water temperature control curtain layered water taking device suitable for a reservoir water taking tower. The self-adaptive water temperature control curtain layered water taking device comprises a water temperature control curtain structure and a self-adaptive adjusting structure. The water temperature control curtain structure comprises a water temperature control curtain, a height adjusting ring, a support with a hanging ring, a supporting rod fixed to the water intake tower and a connecting rod connected with the height adjusting ring. The structure is simple, an existing building can be transformed, a constructed reservoir without layered water taking facilities can be well reconstructed, the structure of the reservoir is not damaged, and compared with traditional layered water taking measures such as a stoplog gate, the layered water taking device has the obvious advantages of being convenient to arrange, low in manufacturing cost, easy to operate, small in head loss and the like; compared with an existing water temperature control curtain layered water taking type, the water temperature control curtain has the obvious advantages of being small in engineering amount, low in manufacturing cost, capable of automatically adjusting the height of the curtain, almost zero in operation cost, energy-saving, environment-friendly, small in curtain deformation and the like.

Description

Technical Field

[0001] The invention belongs to the field of water conservancy, hydropower and water environment engineering, and specifically is an adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower. Background Art

[0002] On the one hand, the construction of large reservoirs has played a huge role in promoting the development of the national economy. On the other hand, it has also caused a series of changes in river morphology, environment, ecology, etc. The reservoir water temperature stratification phenomenon caused by it needs special attention in the study of reservoir water temperature. Typically, the surface temperature of the reservoir is higher in summer, while the water temperature at the bottom of the reservoir is very low because solar radiation cannot reach it. Sometimes the water temperature difference between the surface and bottom of the reservoir can reach 20°C. The water intake of the hydropower station is mostly located at the bottom of the reservoir, which directly leads to the discharge of low-temperature water, causing abnormal water temperature downstream, and then affecting the habitat of the downstream river, and even affecting agriculture and fisheries. For this reason, relevant scholars have proposed a method of stratified water intake by water temperature control curtain.

[0003] The existing water temperature control curtain stratified water intake measures have a full-section layout of the river channel, a large layout area and huge construction costs; different sizes of curtains need to be constantly replaced to achieve greater height adjustment, which is inconvenient to adjust; the height adjustment device is cumbersome and the operating cost is huge; the force is uneven, the curtain deforms greatly, and it is easy to cause stress concentration and many other problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower, so as to solve the problems in the prior art of full-section river channel layout, large layout area and huge construction cost; the need to constantly replace curtains of different sizes to achieve greater height adjustment, which is inconvenient to adjust; the height adjustment device is cumbersome and the operating cost is huge; the force is uneven, the curtain deforms greatly, and it is easy to cause stress concentration.

[0005] An adaptive water temperature control curtain layered water intake device suitable for a reservoir water intake tower, comprising a water temperature control curtain structure and an adaptive adjustment structure;

[0006] The water temperature control curtain structure comprises a water temperature control curtain, a height adjustment ring, a bracket with a lifting ring, a support rod fixed to the water intake tower and a connecting rod connected to the height adjustment ring;

[0007] The height adjustment ring includes a stainless steel ring, an aluminum alloy height adjustment ring and a polyformaldehyde height adjustment ring. The stainless steel ring is installed at the bottom of the water temperature control curtain. The aluminum alloy height adjustment ring is arranged below the flood limit water level of the water temperature control curtain. The polyformaldehyde height adjustment ring and a bracket with a hanging ring are arranged above the flood limit water level of the water temperature control curtain. The bracket is installed at the top of the water temperature control curtain, and a circle of hanging rings is distributed on the bracket.

[0008] The curtain height self-adaptive adjustment structure is composed of a buoy, a sliding rod, a sliding lasso, and a cable. The bottom of the buoy is connected to a cable, and the cable is connected to a lifting ring on the bracket.

[0009] A connecting rod, one end of which is connected to the height adjustment ring, and the other end of which is connected to the sliding rod via a sliding lasso;

[0010] One end of the support rod is fixed to the water intake tower, and the other end is connected to the sliding rod through a sliding lasso.

[0011] Preferably, the connecting rods are arranged with a height adjustment ring at intervals.

[0012] Preferably, the support rods are arranged at intervals of 10 m in water depth and are all made of polyformaldehyde material.

[0013] Preferably, the aluminum alloy height adjustment ring is arranged at intervals of 5m, the aluminum alloy height adjustment ring is hollow inside, hard anodized, and has an overall density of 0.7-0.8g / cm 3 .

[0014] Preferably, the polyoxymethylene height adjustment rings are arranged at intervals of 3m, the polyoxymethylene height adjustment rings are hollow inside, and the density is 1.1-1.3 g / cm 3 .

[0015] Preferably, the buoy is filled with polyurethane foam material, the buoy is sausage-shaped, and the buoys are connected by ropes. The volume of a single buoy is about 5m 3 .

[0016] Preferably, the interior of the sliding rod is an iron rod that has been treated for corrosion, and the exterior is wrapped with polyformaldehyde with a thickness of 100 to 200 cm, and the cross-section of the sliding rod is designed to be in the shape of a table tennis racket.

[0017] Preferably, one end of the sliding lasso is connected to the connecting rod, and the other end is configured to be clamp-shaped to engage with the sliding rod. The sliding lasso made of polyformaldehyde is attached to the sliding rod wrapped with polyformaldehyde to form a self-lubricating sliding surface.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention has a simple structure and can be modified on existing buildings. It can well realize the reconstruction of the already built reservoir without stratified water intake facilities without destroying its structure.

[0020] 2. Compared with traditional stratified water intake measures such as stoplog gates, the present invention has obvious advantages such as convenient layout, low cost, simple operation and small head loss.

[0021] 3. Compared with the existing water temperature control curtain stratified water intake type, the present invention has obvious advantages such as small engineering volume, low cost, automatic adjustment of curtain height, almost zero operating cost, energy saving and environmental protection, and small curtain deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall arrangement of the water temperature control curtain stratified water intake device applicable to a reservoir water intake tower of the present invention;

[0023] Figure 2 It is a top view of a layered water intake device applicable to a water temperature control curtain 1 of a water intake tower of a reservoir according to the present invention;

[0024] Figure 3 The present invention Figure 1 Detailed drawing of the connection between the middle connecting rod, support rod, sliding rod and sliding lasso;

[0025] Figure 4 The present invention Figure 1 A cross-sectional view of the middle sliding rod 8;

[0026] Figure 5 The present invention Figure 1 Detail of the sliding lasso 9.

[0027] In the figure: 1. water temperature control curtain; 2. buoy; 3. polyoxymethylene height adjustment ring; 4. aluminum alloy height adjustment ring; 5. stainless steel ring; 6. connecting rod; 7. support rod; 8. sliding rod; 9. sliding lasso; 10. cable; 11. lifting ring; 12. bracket; 13. water intake tower. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] like Figure 1-5 As shown, the present invention provides an adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower, comprising a water temperature control curtain structure and an adaptive adjustment structure. The water temperature control curtain structure blocks the cold water at the bottom of the reservoir to prevent low-temperature water from leaking down. The adaptive adjustment system can automatically adjust the height of the curtain in the water according to the water level of the reservoir to adapt to the requirements of the temperature of the discharged water under different water levels.

[0030] The water temperature control curtain structure includes a water temperature control curtain 1, a height adjustment ring, a bracket 12 with a lifting ring 11, a support rod 7 fixed to a water intake tower 13, and a connecting rod 6 connected to the height adjustment ring. The water temperature control curtain 1 is horizontally supported by the bracket 12 and the connecting rod 6 respectively.

[0031] The height adjustment ring includes a stainless steel ring 5, an aluminum alloy height adjustment ring 4 and a polyoxymethylene height adjustment ring 3. The stainless steel ring 5 is installed at the bottom of the water temperature control curtain 1 to fix the water temperature control curtain 1 to the bottom of the reservoir. An aluminum alloy height adjustment ring 4 is arranged below the flood limit water level of the water temperature control curtain 1. The aluminum alloy height adjustment ring 4 is arranged every 5m to ensure that the maximum deformation of the curtain does not exceed 2.5m. The aluminum alloy ring height adjustment 4 is hollow inside and is hard-oxidized. The overall density is 0.7-0.8g / cm 3 , to ensure that the curtain below the flood limit water level is always kept in a tensioned state in the vertical direction under the buoyancy of the height adjustment ring 4, and the height of the curtain remains almost unchanged. A polyoxymethylene height adjustment ring 3 and a bracket 12 with a hanging ring 11 are arranged above the flood limit water level of the water temperature control curtain 1 to ensure the horizontal spreading of the curtain and facilitate the connection with the buoy 2. The polyoxymethylene height adjustment ring 3 is arranged at intervals of 3m. The polyoxymethylene height adjustment ring 3 is hollow inside and has a density of 1.1-1.3g / cm 3 , to ensure that the curtain above the flood limit water level can sink vertically under the action of its own weight and the gravity of the height adjustment ring 3. The bracket 12 is installed on the top of the water temperature control curtain 1, and a circle of lifting rings 11 are distributed on the bracket 12;

[0032] The curtain height self-adaptive adjustment structure is composed of a buoy 2, a sliding rod 8, a sliding lasso 9, and a cable 10. The bottom of the buoy 2 is connected to the cable 10, and the cable 10 is connected to the lifting ring 11 on the bracket 12;

[0033] The interior of the buoy 2 is filled with polyurethane foam material. On the one hand, the buoy 2 is used to automatically adjust the height of the curtain, and on the other hand, it plays the role of intercepting floating objects. The buoy 2 made of polyethylene material is anti-ultraviolet aging, environmentally friendly and pollution-free. The buoy 2 is sausage-shaped and connected by ropes to prevent the buoy 2 from drifting, tilting or turning over as a whole during strong winds and floods. The volume of a single buoy 2 is about 5m 3 , can provide at least 50kN of buoyancy.

[0034] A connecting rod 6, one end of which is connected to the height adjustment ring, and the other end of which is connected to the sliding rod 8 via a sliding lasso 9, and the connecting rod 6 is arranged at intervals of one height adjustment ring;

[0035] refer to Figure 3-5 The interior of the sliding rod 8 is an iron rod treated with anti-corrosion, and the exterior is wrapped with polyoxymethylene with a thickness of 1 to 2 cm, which plays a role in protecting the internal iron rod and self-lubricating. The cross section of the sliding rod 8 is designed to be shaped like a table tennis racket, which is conducive to the up and down sliding of the sliding lasso 9;

[0036] refer to Figure 3-5One end of the sliding lasso 9 is connected to the connecting rod 6, and the other end is configured to be clamp-shaped and engage with the sliding rod 8. The sliding lasso 9 made of polyformaldehyde is attached to the sliding rod 8 wrapped with polyformaldehyde to form a self-lubricating sliding surface, thereby achieving the purpose of freely adjusting the water temperature control curtain 1.

[0037] The support rod 7 has one end fixed to the water intake tower 13 and the other end connected to the sliding rod 8 through the sliding lasso 9. One end of the support rod 7 is fixed to the water intake tower 13 and the other end is fixed to the A surface of the sliding rod 8 to provide support for the sliding rod 8;

[0038] The support rods 7 are arranged at intervals of 10m in water depth and are all made of polyoxymethylene material, which has good dimensional stability, water resistance, impact resistance, oil resistance, chemical resistance and wear resistance. At the same time, the friction coefficient and wear amount are low, which is suitable for parts that are subjected to friction and sliding for a long time. When used in moving parts, no lubricant is needed, and it has excellent self-lubricating effect.

[0039] Implementation principle: When the water level of the reservoir drops, the water temperature control curtain 1 automatically drops under the action of its own weight and the gravity of the polyoxymethylene height adjustment ring 3. At this time, the connecting rod 6 drives the sliding lasso 9 to slide on the sliding rod 8 under the action of gravity. When the water level of the reservoir rises, the water temperature control curtain 1 automatically rises under the lifting action of the buoy 2, so as to achieve the effect of freely adjusting the height of the curtain, blocking the low-temperature water at the bottom, and adjusting the water temperature discharged from the reservoir.

[0040] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower, characterized in that: Including water temperature control curtain structure and adaptive adjustment structure; The water temperature control curtain structure comprises a water temperature control curtain, a height adjustment ring, a bracket with a lifting ring, a support rod fixed to the water intake tower and a connecting rod connected to the height adjustment ring; The height adjustment ring includes a stainless steel ring, an aluminum alloy height adjustment ring and a polyformaldehyde height adjustment ring. The stainless steel ring is installed at the bottom of the water temperature control curtain. The aluminum alloy height adjustment ring is arranged below the flood limit water level of the water temperature control curtain. The polyformaldehyde height adjustment ring and a bracket with a hanging ring are arranged above the flood limit water level of the water temperature control curtain. The bracket is installed at the top of the water temperature control curtain, and a circle of hanging rings is distributed on the bracket. The curtain height self-adaptive adjustment structure is composed of a buoy, a sliding rod, a sliding lasso, and a cable. The bottom of the buoy is connected to a cable, and the cable is connected to a lifting ring on the bracket. A connecting rod, one end of which is connected to the height adjustment ring, and the other end of which is connected to the sliding rod via a sliding lasso; The support rod has one end fixed to the water intake tower and the other end connected to the sliding rod through a sliding lasso.

2. The adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower as claimed in claim 1, characterized in that: The connecting rods are arranged with a height adjustment ring at intervals.

3. The adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower as claimed in claim 1, characterized in that: The support rods are arranged at intervals of 10m in water depth and are all made of polyoxymethylene material.

4. The adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower as claimed in claim 1, characterized in that: The aluminum alloy height adjustment ring is set every 5m. The aluminum alloy height adjustment ring is hollow inside and hard-oxidized. The overall density is 0.7-0.8g / cm 3 .

5. The adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower as claimed in claim 1, characterized in that: The polyoxymethylene height adjustment rings are arranged at intervals of 3m. The polyoxymethylene height adjustment rings are hollow inside and have a density of 1.1 to 1.3 g / cm 3 .

6. The adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower as claimed in claim 1, characterized in that: The buoy is filled with polyurethane foam material. The buoy is sausage-shaped and connected by ropes. The volume of a single buoy is about 5m 3 .

7. The adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower as claimed in claim 1, characterized in that: The interior of the sliding rod is an iron rod that has been treated with anti-corrosion, and the exterior is wrapped with polyoxymethylene with a thickness of 1 to 2 cm, and the cross section of the sliding rod is designed to be in the shape of a table tennis racket.

8. The adaptive water temperature control curtain stratified water intake device suitable for a reservoir water intake tower as claimed in claim 1, characterized in that: One end of the sliding lasso is connected to the connecting rod, and the other end is configured to be clamp-shaped and engaged with the sliding rod. The sliding lasso made of polyformaldehyde is attached to the sliding rod wrapped with polyformaldehyde to form a self-lubricating sliding surface.

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