CN209958306U - Anti-freezing arrangement body type of down-the-hole radial gate - Google Patents
Anti-freezing arrangement body type of down-the-hole radial gate Download PDFInfo
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- CN209958306U CN209958306U CN201920465757.6U CN201920465757U CN209958306U CN 209958306 U CN209958306 U CN 209958306U CN 201920465757 U CN201920465757 U CN 201920465757U CN 209958306 U CN209958306 U CN 209958306U
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Abstract
The utility model relates to a down-the-hole radial gate prevents freezing and arranges size belongs to radial gate technical field. The gate comprises a gate transition section inlet, a gate chamber, a breast wall, a stilling pool, a sea section and a downstream river channel which are sequentially arranged, wherein the gate is also provided with an opening and closing machine chamber, the gate chamber is communicated with the opening and closing machine chamber, and the temperature of the opening and closing machine chamber is higher than zero; the side wall of the lock chamber is provided with vent holes, the downstream side in the lock chamber is provided with a breast wall, the breast wall is fixedly connected with the side wall of the lock chamber and the bottom plate of the opening and closing machine chamber, water flows out of the lock chamber and then enters a downstream stilling basin, and water enters a sea-island section and a downstream river channel after energy dissipation. The scheme of ensuring that water flow in the gate chamber cannot be frozen through body type arrangement effectively solves the problem that the gate control engineering gate is frozen in winter under high flooding conditions, prevents accidents caused by freezing of the gate, and solves the problems of unsatisfactory opening and closing operation of the gate in winter, high cost, high energy consumption, complex structure and the like in the existing anti-freezing method.
Description
Technical Field
The utility model relates to a radial gate technical field, in particular to down-the-hole radial gate prevents freezing and arranges size.
Background
In severe cold seasons of severe cold regions, reservoirs, downstream riverways, downstream high-water-level gate-controlled water outlets and the like can be frozen, and the freezing thickness can reach 1 m. After the water body is frozen, the ice generates acting force on the structure, including static ice pressure, dynamic ice pressure, lifting force and ice stacking pressure caused by an ice layer, and the acting force easily causes gate operation accidents. In cold areas, under the running or closing states of a sluice gate of a reservoir spillway, various sluicing gates on rivers, a check gate, a control gate in water diversion and transportation engineering and the like, the sluice gate is generally in a water-bearing state, and under the low-temperature condition, water bodies near the sluice gate and an accessory structure are easy to freeze, so that the running of the sluice gate in winter is seriously influenced. At present, the measures for preventing the gate from freezing are all considered from the perspective of ice removal after freezing, and the method of the matched engineering is generally adopted, and comprises manual ice breaking, mechanical ice breaking, electric heating ice melting, heat pipe heat transfer ice breaking, compressed air ice blowing, water pump disturbance ice breaking, pressure water jet ice breaking and the like. The measures solve the problem of damage of the ice thrust of the gate, but do not well solve the problem of opening and closing operation of the gate in winter, and simultaneously, the manual and mechanical ice breaking is hard, dangerous and poor in effect; energy consumption is reduced by electric heating ice melting; the heat pipe conducts heat to break ice, compressed air blows the ice, a water pump disturbs the ice, and pressure water jet breaks the ice, so that energy is saved, but complex system equipment also needs to be constructed. Therefore, it is necessary to design a new technical solution to comprehensively solve the problems in the prior art.
Disclosure of Invention
An object of the utility model is to provide a down-the-hole radial gate anti-freezing arranges the size, has effectively solved the frozen difficult problem in the gating engineering winter under the high flooding condition, guarantees that radial gate opens and close freely, has solved the problem that current anti-freezing method exists with high costs, the power consumption is big and the structure is complicated simultaneously.
The anti-freezing arrangement body type of the down-the-hole radial gate is characterized in that a semi-closed gate chamber is constructed on the premise that the water level of a downstream river channel is obviously higher than the bottom elevation of a downstream breast wall of the gate chamber: under the condition of still water, the downstream water level is very high, the lock chamber is sealed due to water, and cold air outside the lock chamber cannot enter the lock chamber; under the condition of gate operation, the lock chamber and the absorption basin are filled with flowing water, and the water flow in the lock chamber and the absorption basin can not freeze under the condition of flowing water. The utility model discloses a core theory lies in with nature or passive mode, under the full-state operating mode such as brake accuse export engineering diversion or sluicing, guarantees not freezing in the lock chamber, does not influence the gate operation.
The above object of the utility model is realized through following technical scheme:
the anti-freezing arrangement body type of the down-the-hole radial gate comprises a gate transition section inlet, a gate 1, a gate chamber 3, a breast wall 4, a stilling pool 5, a sea overflow section 6 and a downstream river 7 which are sequentially arranged and communicated, wherein the gate 1 is arranged at the inlet of the gate transition section, the gate 1 is provided with an opening and closing machine chamber 2, and the sea overflow section 6 is of a lead wire gabion structure; the lock chamber 3 is communicated with the upper hoist chamber 2, and the temperature of the hoist chamber 2 is higher than zero, so that the temperature in the lock chamber is ensured to be higher than zero; the inner side wall of the gate chamber 3 is provided with vent holes, the outlets of the vent holes are arranged on the side wall of the stilling pool 5, and the bottom elevations of the vent holes are higher than the downstream designed flood level or the check flood level; a breast wall 4 is arranged on the downstream side in the lock chamber 3, the breast wall 4 is fixedly connected with the side wall of the lock chamber 3 and the bottom plate of the hoist chamber 2, and the thickness and the height of the breast wall 4 are determined according to the freezing depth in winter; a regulating plane gate 8 for controlling the height of the breast wall outlet is arranged at the downstream of the lock chamber 3 and at the breast wall outlet; the gate-controlled water controlled by the gate 1 flows out of the gate chamber 3 and then enters the downstream stilling basin 5, and the water flow enters the sea-island section 6 and the downstream river 7 after energy dissipation through the stilling basin 5.
The breast wall 4 is filled with heat insulation materials 41, and the outer sides of the three side walls of the lock chamber 3 are also filled with the heat insulation materials 41.
The arrangement of the 3-bottom elevation of the lock chamber, the 5-bottom elevation of the stilling pool, the 4-bottom elevation of the breast wall and the lowest water level of the downstream river channel 7 ensures that the lowest water level of the downstream river channel 7 is higher than the 4-bottom elevation of the breast wall, the 4-bottom elevation of the breast wall is determined according to the lowest downstream water level and the water diversion flow and is at least lower than the lowest water level of 2 ~ 3m, so that the condition that the downstream water level is always higher than the bottom elevation of the breast wall under the normal water diversion condition of the engineering is ensured, the air exchange between the lock chamber and the downstream stilling pool is avoided, and the cold air cannot enter the lock chamber and.
The beneficial effects of the utility model reside in that: when the gate is closed, the downstream water level is higher, the downstream cold air cannot enter the lock chamber, and meanwhile, the lock chamber is communicated with the upper opening and closing machine chamber; in winter, the temperature in the upper hoist chamber is higher than zero (workers work in the upper hoist chamber), so that the temperature in the lock chamber can be ensured to be higher than zero, and the water surface of the lock chamber can not be frozen; the anti-freezing structure effectively solves the down-hole anti-freezing body type under the conditions of large hole opening, small flow and high flooding, mainly solves the problem that the gate control engineering gate is frozen in winter under the high flooding condition, prevents accidents caused by freezing of the gate, and simultaneously solves the problems of high cost, large energy consumption and complex structure in the existing anti-freezing method.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate example embodiments of the invention and together with the description serve to explain the invention without limitation.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is another schematic structural diagram of the present invention;
fig. 4 is a schematic structural view of the control plane gate of the present invention.
In the figure: 1. a gate; 2. an opening and closing machine chamber; 3. a lock chamber; 4. a breast wall; 41. a thermal insulation material; 5. a stilling pool; 6. a sea section; 7. a downstream waterway; 8. regulating and controlling a plane gate.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It is to be understood that the following text is only intended to describe one or several particular embodiments of the invention, and does not strictly limit the scope of the claims specifically claimed.
The details of the present invention and its embodiments are further described below with reference to the accompanying drawings.
Referring to fig. 1 to 4, the anti-freezing arrangement body type of the down-the-hole radial gate of the present invention effectively solves the problem of freezing of the gate control engineering gate in winter under high flooding conditions, prevents the gate from causing accidents due to freezing, and solves the problems of high cost, high energy consumption and complex structure in the existing anti-freezing method. The sea water dam comprises a gate transition section inlet, a gate 1, a gate chamber 3, a breast wall 4, a stilling pool 5, a sea water section 6 and a downstream river 7 which are sequentially arranged and communicated, wherein the gate 1 is arranged at the gate transition section inlet, the gate 1 is provided with an opening and closing chamber 2, and the sea water section 6 is of a lead wire gabion structure; the lock chamber 3 is communicated with the upper hoist chamber 2, and the temperature of the hoist chamber 2 is higher than zero, so that the temperature in the lock chamber is ensured to be higher than zero; the inner side wall of the gate chamber 3 is provided with vent holes, the outlets of the vent holes are arranged on the side wall of the stilling pool 5, and the bottom elevations of the vent holes are higher than the downstream designed flood level or the check flood level; a breast wall 4 is arranged on the downstream side in the lock chamber 3, the breast wall 4 is fixedly connected with the side wall of the lock chamber 3 and the bottom plate of the hoist chamber 2, and the thickness and the height of the breast wall 4 are determined according to the freezing depth in winter; a regulating plane gate 8 for controlling the height of the breast wall outlet is arranged at the downstream of the lock chamber 3 and at the breast wall outlet; the gate-controlled water controlled by the gate 1 flows out of the gate chamber 3 and then enters the downstream stilling basin 5, and the water flow enters the sea-island section 6 and the downstream river 7 after energy dissipation through the stilling basin 5.
The breast wall 4 is filled with heat insulation materials 41, and the outer sides of the three side walls of the lock chamber 3 are also filled with the heat insulation materials 41.
The arrangement of the 3-bottom elevation of the lock chamber, the 5-bottom elevation of the stilling pool, the 4-bottom elevation of the breast wall and the lowest water level of the downstream river channel 7 ensures that the lowest water level of the downstream river channel 7 is higher than the 4-bottom elevation of the breast wall, the 4-bottom elevation of the breast wall is determined according to the lowest downstream water level and the water diversion flow and is at least lower than the lowest water level of 2 ~ 3m, so that the condition that the downstream water level is always higher than the bottom elevation of the breast wall under the normal water diversion condition of the engineering is ensured, the air exchange between the lock chamber and the downstream stilling pool is avoided, and the cold air cannot enter the lock chamber and.
The control plane gate 8 is composed of a panel, a cross beam, a longitudinal beam, a water seal, a roller, an opening and closing device and the like, the door bodies are welded and connected into an integral structure, and the opening and closing device is a gate auxiliary structure and is connected with the gate through a lifting lug; the control plane gate does not generally operate, when the downstream water level is lower, the water depth above the bottom of the breast wall is shallower, and the danger of ventilation exists between the lock chamber and the stilling pool during operation, at the moment, the control plane gate descends properly, the height of the discharge hole of the breast wall of the lock chamber is reduced, and the water depth is increased to avoid ventilation between the lock chamber and the stilling pool.
The thickness of the breast wall is determined according to the freezing depth in winter, and the temperature in the lock chamber is reduced by arranging heat insulation materials in the breast wall with enough thickness and preventing the breast wall from freezing through, generally, the thickness of the breast wall is 3 ~ 4m or more (the thickness of the breast wall is 3m in the embodiment), and the bottom elevation of the breast wall is 3m
Determined according to the downstream minimum water level and the water diversion flow, the height of the breast wall bottom is generally more than 2 ~ 3m (the breast wall bottom height is 218.15 in the embodiment and is 4m lower than the minimum water level), the bottom of the breast wall is ensured not to be empty under each water level and each opening degree, and the position of the breast wallGenerally determined by the hydraulic water jump line, and for highly submerged gated currents, the position of the breast wall (horizontal position, distance from the center of the gate hinge and bottom elevation) also takes into account the economics of the project.
The position of the breast wall needs to meet the following requirements: the bottom of the breast wall can retain water, no impact water flow is generated at the bottom of the breast wall, the fluctuation of water flow in the lock chamber is small, and no breast wall impact type hydrodynamic load is generated.
The central elevation of the ventilation hole of the lock chamber requires that the ventilation hole does not allow water to enter in the operation process of the gate, the lock chamber is in a high submerged state in the operation process of the gate, the ventilation volume of the lock chamber is small, the ventilation hole is mainly used for gas exchange between the lock chamber and the outside, and a cover is required to be added to the ventilation hole of the lock chamber in winter to prevent cold air from entering downstream.
The sea section (the length of the lead wire gabion is 15 m) at the outlet of the stilling basin and the slope section (the length of the lead wire gabion is 41.6 m) connected with a downstream river channel are mainly considered, and the problems of engineering cost and scour prevention are mainly considered.
Referring to fig. 1 and 2, when the water outlet begins to draw water, the arc-shaped working gate is opened, and the water drawing flow and the upstream water level are designed
Opening the set gate opening
At the moment, the water flow enters a downstream stilling pool from the orifice through the bottom of the breast wall and further enters a downstream river channel; in the operation process, the breast wall is always below the water level, and air above the downstream stilling pool cannot enter the lock chamber through the breast wall. Because the water level of the stilling pool is higher than that of the lock chamber, part of the water in the stilling pool enters the lock chamber through the bottom of the breast wall, the water in the lock chamber is exchanged with the water in the stilling pool, and the exchange quantity influences the water temperature of the water in the lock chamber. Because the scheme can not control the exchange quantity of the water bodies of the lock chambers and the stilling pool, the bottom elevation of the breast wall can be properly reduced in the design process.
Referring to fig. 4, a regulating plane gate is arranged on the breast wall near the downstream side, and the bottom of the regulating plane gate is dropped to a position lower than the bottom elevation of the breast wall, so that the water flow of the downstream stilling pool can be effectively controlled to enter the lock chamber.
The above description is only a preferred example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made to the present invention should be included in the protection scope of the present invention.
Claims (3)
1. An anti-freezing arrangement body type of a down-the-hole radial gate is characterized in that: the sea water dam comprises a gate transition section inlet, a gate (1), a gate chamber (3), a breast wall (4), a stilling pool (5), a sea water section (6) and a downstream river channel (7) which are sequentially arranged and communicated, wherein the gate (1) is arranged at the inlet of the gate transition section, the gate (1) is provided with an opening and closing machine chamber (2), and the sea water section (6) is of a lead wire gabion structure; the gate chamber (3) is communicated with the upper hoist chamber (2), and the temperature of the hoist chamber (2) is higher than zero, so that the temperature in the gate chamber is ensured to be higher than zero; vent holes are formed in the inner side wall of the gate chamber (3), the outlets of the vent holes are arranged on the side wall of the stilling pool (5), and the elevation of the bottoms of the vent holes is higher than the downstream designed flood level or the check flood level; a breast wall (4) is arranged on the downstream side in the gate chamber (3), the breast wall (4) is fixedly connected with the side wall of the gate chamber (3) and the bottom plate of the hoist chamber (2), and the thickness and the height of the breast wall (4) are determined according to the freezing depth in winter; a regulating plane gate (8) for controlling the height of the breast wall outlet is arranged at the downstream of the gate chamber (3) and at the breast wall outlet; the gate-controlled water controlled by the gate (1) flows out of the gate chamber (3) and then enters the downstream stilling pool (5), and the water flow is dissipated by the stilling pool (5) and then enters the sea section (6) and the downstream river channel (7).
2. A down-the-hole radial gate anti-freeze arrangement body type as claimed in claim 1, wherein: the breast wall (4) is filled with heat insulation materials (41), and the outer sides of three side walls of the lock chamber (3) are also filled with the heat insulation materials (41).
3. The anti-freezing arrangement body of the down-the-hole radial gate of claim 1 is characterized in that the arrangement of the bottom elevation of the gate chamber (3), the bottom elevation of the stilling pool (5), the bottom elevation of the breast wall (4) and the lowest water level of the downstream riverway (7) is that the lowest water level of the downstream riverway (7) is higher than the bottom elevation of the breast wall (4), the bottom elevation of the breast wall (4) is determined according to the lowest water level of the downstream and the water diversion flow and is at least 2 ~ 3m lower than the lowest water level, so that the downstream water level is always higher than the bottom elevation of the breast wall under the normal water diversion condition of the engineering, the air exchange between the gate chamber and the downstream stilling pool is avoided, and further, the cold air cannot enter the gate chamber and the water surface cannot be frozen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920465757.6U CN209958306U (en) | 2019-04-09 | 2019-04-09 | Anti-freezing arrangement body type of down-the-hole radial gate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920465757.6U CN209958306U (en) | 2019-04-09 | 2019-04-09 | Anti-freezing arrangement body type of down-the-hole radial gate |
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| CN209958306U true CN209958306U (en) | 2020-01-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881643A (en) * | 2019-04-09 | 2019-06-14 | 吉林省水利水电勘测设计研究院 | Down-the-hole gates of segmental shape Anti-freezing arranges figure and its determines method |
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2019
- 2019-04-09 CN CN201920465757.6U patent/CN209958306U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881643A (en) * | 2019-04-09 | 2019-06-14 | 吉林省水利水电勘测设计研究院 | Down-the-hole gates of segmental shape Anti-freezing arranges figure and its determines method |
| CN109881643B (en) * | 2019-04-09 | 2023-12-22 | 吉林省水利水电勘测设计研究院 | Down-the-hole radial gate anti-freezing arrangement body type and determination method thereof |
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