Electric gate for low-temperature tank area open channel

Abstract

The utility model relates to a kind of electric gate for low-temperature tank area open channel, comprising: the door frame installed on open channel, the door frame is equipped with the door plate that can slide along vertical direction, door frame top is equipped with electric hoist, and the drive end of electric hoist is connected with transmission screw rod, the transmission screw rod extends to door frame inside downwards and is connected with cooling panel, the bottom of cooling panel is connected with connecting piece, and the top of door plate is connected by connecting piece.The utility model sets up cooling panel between transmission screw rod and door plate, reduces temperature conduction speed, to protect electric hoist and transmission screw rod, improve equipment reliability and reduce maintenance frequency.

Description

Technical Field

[0001] This utility model relates to the fields of water conservancy engineering technology and cryogenic storage and transportation technology, specifically to an electric gate for open channels in cryogenic tank farms. Background Technology

[0002] With the increasing number of cryogenic tank farm projects in China, related environmental and safety issues are becoming increasingly prominent, attracting attention from the government and enterprises, and leading to increasingly stringent requirements. Cryogenic tank farm projects generally store chemical substances with low boiling points and low flash points. These substances are physically unstable and need to be stored in a low-temperature environment. Low temperatures can adversely affect some equipment, therefore some equipment needs to be designed to withstand low temperatures.

[0003] Under normal operating conditions, in accordance with the environmental protection requirements of separating clean water from wastewater, at the beginning of rainfall, the initial rainwater in the cryogenic tank area is sent to the initial rainwater pool through an open channel. The gate on the open channel to the initial rainwater pool is open by default. In the event of an accident, if a tank breaks and leaks a large amount of cryogenic chemical substances, the chemical substances need to be sent to the collection pool through an open channel. At this time, the gate to the collection pool needs to be opened, and the gate to the initial rainwater pool needs to be closed at the same time to intercept the leaked cryogenic chemical substances.

[0004] Therefore, in the open channel system of the cryogenic tank area, the electric gate may come into contact with cryogenic chemicals. The low temperature is conducted upward along the gate. When it is conducted to the electric gate hoist, the low temperature may damage the delicate transmission mechanism and electrical equipment such as gears and belts inside the electric gate hoist, thus causing the electric gate to fail. To address the adverse effects of low-temperature environments, heating devices or specialized electric gate hoists resistant to low-temperature conditions are currently widely used. For example, CN222435218U discloses a gate with ice-breaking function, which uses heat dissipation pipes installed in the gate frame to transmit hot gas for ice breaking. However, for low-temperature tank area projects, the media conditions are complex, mostly consisting of liquefied hydrocarbons with low boiling points and low flash points. Heating poses safety hazards and increases energy consumption. Specialized gate hoists resistant to low-temperature environments are expensive, and there are limited domestic suppliers, making procurement difficult. Utility Model Content

[0005] This utility model provides an electric gate for open channels in cryogenic tank farms. By installing a cooling plate between the transmission screw and the gate plate, the temperature conduction speed is reduced, thereby protecting the electric gate opener, improving equipment reliability, and reducing maintenance frequency.

[0006] The solution of the present invention to solve the above-mentioned technical problems is as follows: An electric gate for open channels in cryogenic tank areas, comprising: a door panel that can slide vertically inside the door frame, an electric hoist installed at the top of the door frame, a transmission screw connected to the drive end of the electric hoist, the transmission screw extending downward into the door frame and connected to a cooling plate, a connector connected to the bottom of the cooling plate, and the top of the door panel connected to the connector.

[0007] Preferably, the cooling plate includes a horizontal connecting plate and condensation plates disposed on both sides of the horizontal connecting plate. The top surface of the horizontal connecting plate is connected to the transmission screw, and the bottom surface is connected to the door panel through a connector.

[0008] A cooling plate is positioned between the door panel and the drive screw. Cooling energy is conducted upwards along the door panel and then laterally along the cooling plate, thus reducing vertical heat transfer. The cooling plate increases the heat exchange area, thereby slowing the heat transfer speed to the drive screw. A horizontal connecting plate connects the upper and lower components, while a condenser plate dissipates the transferred cooling energy.

[0009] Preferably, the condenser plate extends downward along the length of the open channel, and more preferably, the condenser plate is inclined downward at 5-15°.

[0010] A downward-sloping condenser plate helps to guide away the condensate that forms on the surface. If the tilt angle is too high, it may reduce the heat exchange efficiency; if the tilt angle is too low, it may cause condensate to stagnate.

[0011] Preferably, the condenser plate is provided with a plurality of condensate guide channels, which extend along the length of the open channel.

[0012] Preferably, the condenser plate is folded up and down multiple times to form multiple condensate guide channels. The cross-section of the condensate guide channel is preferably a trapezoidal structure that is wider at the top and narrower at the bottom, and the cross-section of the condenser plate is a wave-like shape with alternating up and down.

[0013] The condenser plate is equipped with multiple condensate guide channels, which effectively guide the condensate flow along the channels, reducing the risk of condensate freezing due to prolonged stagnation, while also increasing the surface area of ​​the heat dissipation plate. The condensate guide channels are designed in a trapezoidal shape, wider at the top and narrower at the bottom, allowing the condensate to collect and flow more smoothly during the process.

[0014] Preferably, the bottom of the transmission screw is provided with a heat-insulating joint, which is connected to the horizontal connecting plate.

[0015] Preferably, the thermal insulation joint includes a flange and a thermal insulation gasket disposed at the bottom of the flange. The flange is connected to a horizontal connecting plate by bolts and nuts, and a thermal insulation bushing is fitted on the bolts.

[0016] The thermal insulation joint is connected to the horizontal connecting plate by a flange and bolts and nuts. This connection method is firm and reliable, easy to install and disassemble, and easy to maintain and replace the thermal insulation joint. At the same time, the flange and the bottom are equipped with thermal insulation gaskets, and the bolts are fitted with thermal insulation bushings, which further enhances the thermal insulation effect and effectively prevents low temperature from being transferred to the electric gate hoist through the connection parts, ensuring that the electric gate hoist can operate safely and stably in low temperature environments.

[0017] Preferably, the connector includes a connecting base, which is fixed to the bottom of a horizontal connecting plate. Symmetrical lifting lugs are connected to both sides of the connecting base by pins, and the lifting lugs are fixedly connected to the top of the door panel.

[0018] The connector adopts a combination structure of a connecting base and a lifting lug. The connecting base is welded to the bottom of the horizontal connecting plate, and the lifting lug is fixedly connected to the door panel through a pin. This connection method has a simple structure and a firm and reliable connection, which can ensure a stable connection between the cooling plate and the door panel, so that the door panel can move smoothly and accurately during the lifting process, improving the overall operational stability of the equipment. At the same time, this connection structure is easy to install and disassemble, and facilitates the maintenance and replacement of the door panel and the cooling plate.

[0019] Preferably, a sealing element is provided between the door frame and the door panel.

[0020] The seals effectively prevent low-temperature media from leaking from the gap between the door frame and the door panel, thus improving the sealing performance of the electric gate.

[0021] The beneficial effects of this utility model are as follows: 1. By setting up a cooling plate and an insulation joint, this utility model effectively prevents the cold energy of the low-temperature medium from being transferred upward to the electric gate hoist, reducing the adverse effects of low temperature on the electric gate hoist, ensuring stable operation of the electric gate hoist at normal temperature, and avoiding mechanical failures and damage caused by low temperature.

[0022] 2. This utility model increases the heat exchange area and improves the cooling efficiency by designing a cooling plate. The inclined condenser plate and the condensate guide channel that is wider at the top and narrower at the bottom further reduce the residence time of condensate on the surface, prevent the equipment from freezing, and extend the service life of the equipment.

[0023] 3. The components of this utility model are detachable, which facilitates installation and disassembly, and makes maintenance and replacement convenient. The connector adopts a structure of connecting base and connecting ear plate, which ensures a firm and reliable connection, while also facilitating the maintenance and replacement of the door panel and cooling plate. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 A front view of an electric gate for open channels in a cryogenic tank farm provided in Example 1; Figure 2 A top view of an electric gate for an open channel in a cryogenic tank area provided in Example 1; Figure 3 A side view of an electric gate for an open channel in a cryogenic tank area provided in Example 1; Figure 4 for Figure 1 Enlarged view of part E in the middle; Figure 5 This is a schematic diagram of the cooling plate structure in Example 1.

[0025] In the attached diagram, the components represented by each number are as follows: 1. Door panel; 2. Door frame; 3. Sealing components; 4. Cooling plate; 5. Drive screw; 6. Electric hoist; 7. Insulation joint; 8. Connecting components; 41. Horizontal connecting plate; 42. Condensation plate; 43. Condensate guide channel; 73. Insulation gasket; 74. Flange; 81. Connecting base; 82. Lifting lug. Detailed Implementation

[0026] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0027] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Example 1 like Figures 1-3 As shown, this embodiment provides an electric gate for open channels in cryogenic tank areas, including a gate frame 2 installed on the open channel, a door panel 1 that can slide vertically inside the gate frame 2, and a polytetrafluoroethylene sealing element 3 between the gate frame 2 and the door panel 1.

[0030] An electric hoist 6 is installed on the top of the door frame 2. The drive end of the electric hoist 6 is connected to a transmission screw 5. The transmission screw 5 extends downward into the door frame 2 and is provided with a polytetrafluoroethylene heat insulation joint 7 at the bottom. The heat insulation joint 7 is connected to the cooling plate 4. The bottom of the cooling plate 4 is connected to a connector 8. The connector 8 includes a connecting base 81 and a lifting lug 82. The two sides of the connecting base 81 are connected to the symmetrical lifting lugs 82 by pins.

[0031] The cooling plate 4 includes a horizontal connecting plate 41 and condensing plates 42 disposed on both sides of the horizontal connecting plate 41. The top surface of the horizontal connecting plate 41 is connected to the heat insulation joint 7, and the bottom surface is connected to the connecting base 81. The lifting lug 82 is fixed to the top of the door panel 1.

[0032] like Figure 5 As shown, the condenser plate 42 is inclined downward at 5-15° along the length of the open channel. After being folded up and down multiple times, the condenser plate 42 forms multiple condensate guide channels 43. The condensate guide channels 43 extend along the length of the open channel and have a trapezoidal cross-section that is wider at the top and narrower at the bottom. The cross-section of the condenser plate 42 has an alternating wave shape.

[0033] like Figure 4 As shown, the thermal insulation joint 7 includes a flange 74 and a thermal insulation gasket 73 disposed at the bottom of the flange 74. The flange 74 is connected to the horizontal connecting plate 41 by bolts and nuts, and a thermal insulation bushing is fitted on the bolts.

[0034] The working principle is as follows: the electric gate hoist 6, via the transmission screw 5, sequentially through the heat insulation joint 7, the cooling plate 4, and the connecting piece 8, drives the gate plate 1 to rise or fall, thereby achieving the purpose of opening and closing the gate. The cooling plate 4 is located between the top of the gate plate 1 and the transmission screw 5. The low temperature of the medium being transported in the open channel is transferred upwards along the gate plate 1 to the cooling plate 4. The low temperature is then transferred along the cooling plate 4, which expands the heat exchange area, absorbs heat, and raises the temperature, reducing the adverse effects of low temperature on the electric gate hoist 6. The heat insulation joint 7 is located between the cooling plate 4 and the electric gate hoist 6. The heat insulation joint 7 uses polytetrafluoroethylene (PTFE) as the insulation material to prevent the low temperature from being transferred upwards to the electric gate hoist 6, further reducing the adverse effects of low temperature on the electric gate hoist 6.

[0035] It will be readily understood by those skilled in the art that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, substitutions, improvements, etc., made under the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. An electric gate for open channels in cryogenic tank farms, comprising a gate frame (2) installed on the open channel, wherein the gate frame (2) is provided with a gate panel (1) that can slide vertically, characterized in that: An electric hoist (6) is installed on the top of the door frame (2). The drive end of the electric hoist (6) is connected to a transmission screw (5). The transmission screw (5) extends downward into the door frame (2) and is connected to a cooling plate (4). A connector (8) is connected to the bottom of the cooling plate (4), and the top of the door panel (1) is connected through the connector (8).

2. The electric gate for open channels in cryogenic tank farms according to claim 1, characterized in that, The cooling plate (4) includes a horizontal connecting plate (41) and condensing plates (42) arranged on both sides of the horizontal connecting plate (41). The top surface of the horizontal connecting plate (41) is connected to the transmission screw (5), and the bottom surface is connected to the door panel (1) through the connector (8).

3. An electric gate for open channels in cryogenic tank farms according to claim 2, characterized in that, The condenser plate (42) extends downward along the length of the open channel.

4. An electric gate for open channels in cryogenic tank farms according to claim 3, characterized in that, The condenser plate (42) is tilted downwards at 5-15°.

5. An electric gate for open channels in cryogenic tank farms according to claim 2, characterized in that, The condenser plate (42) is provided with multiple condensate guide channels (43), which extend along the length of the open channel.

6. An electric gate for open channels in cryogenic tank farms according to claim 5, characterized in that, The condenser plate (42) is folded up and down multiple times to form multiple condensate guide channels (43).

7. An electric gate for open channels in cryogenic tank farms according to claim 1, characterized in that, The bottom of the transmission screw (5) is provided with an insulating joint (7), which is connected to the horizontal connecting plate (41).

8. An electric gate for open channels in cryogenic tank farms according to claim 7, characterized in that, The thermal insulation joint (7) includes a flange (74) and a thermal insulation gasket (73) disposed at the bottom of the flange (74). The flange (74) is connected to a horizontal connecting plate (41) by bolts and nuts. A thermal insulation bushing is fitted on the bolts.

9. An electric gate for open channels in cryogenic tank farms according to claim 1, characterized in that, The connector (8) includes a connecting base (81), which is fixed to the bottom of the horizontal connecting plate (41). Symmetrical lugs (82) are connected to both sides of the connecting base (81) by pins. The bottom of the lugs (82) is connected to the top of the door panel (1).

10. An electric gate for open channels in cryogenic tank farms according to claim 1, characterized in that, A sealing element (3) is provided between the door frame (2) and the door panel (1).

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