CN218795716U

CN218795716U - Ventilation cover plate for fan system of urea prilling tower

Info

Publication number: CN218795716U
Application number: CN202223057212.2U
Authority: CN
Inventors: 周列; 邵华喜
Original assignee: Shanghai Jingye Environmental Protection And Energy Technology Co ltd
Current assignee: Shanghai Jingye Environmental Protection And Energy Technology Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-04-07
Anticipated expiration: 2032-11-17

Abstract

The utility model provides a ventilation cover plate for a urea prilling tower fan system, which is arranged at the air outlet of an air pipe, a fan is arranged in the air pipe, and the ventilation cover plate is positioned above the fan; the ventilation cover plate comprises a fixed plate and a turnover plate, the fixed plate is rotatably connected with the turnover plate, the fixed plate is used for being connected with the side wall of the ventilation pipeline, and the turnover plate is used for opening or closing the air outlet; under the condition that the fan starts, the turnover plate rotates upwards under the wind power effect of the fan, so that the air outlet is opened, and under the condition that the fan is stopped, the turnover plate rotates downwards under the action of self gravity, so that the air outlet is closed. This a ventilation apron for urea prilling tower fan system simple structure, reasonable in design, the reliable operation can realize the automatic of the ventilation apron that is used for urea prilling tower fan system and open and close, reduces the manpower, improves work efficiency, can guarantee the normal start of many fans in the air pipe simultaneously.

Description

Ventilation cover plate for fan system of urea prilling tower

Technical Field

The utility model belongs to the technical field of automation equipment, especially, relate to a vent flap board for urea prilling tower fan system.

Background

A plurality of fans are arranged in the ventilation opening at the top of the urea prilling tower, and the forced ventilation in the urea prilling tower can be realized through the fans so as to achieve the purpose of cooling the product particles in the prilling tower. A cover plate is fixed at the vent through bolts to prevent rain and snow from entering the inside of the fan and prevent the fan from reversing and the like. When the fan starts operation, many fans start successively, and one or more fans that start earlier can normal operating, and the fan that later starts can reverse under the influence of the fan air volume that has started, and when starting under the fan reversal state, the fan current can be very big, leads to the tripping operation, can't start. Therefore, when the fan starts to operate, the cover plate needs to be taken off from the vent, and after the fan stops operating, the cover plate is installed at the vent again. At present, the cover plate needs to be manually disassembled and assembled before and after the fan is started, and the disassembling and assembling work can be completed by more than two persons, so that the labor is consumed, and the working efficiency is low.

Disclosure of Invention

The utility model provides a ventilation cover plate for urea prilling tower fan system to solve the problem that needs artifical dismouting apron among the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a vent flap for urea prilling tower fan system, a vent flap for urea prilling tower fan system sets up in air pipe's air outlet department, is provided with the fan in the air pipe, a vent flap for urea prilling tower fan system is located the fan top, a vent flap for urea prilling tower fan system includes: the air duct comprises a fixed plate and a turnover plate, wherein the fixed plate is rotatably connected with the turnover plate and is used for being connected with the side wall of the air duct, and the turnover plate is used for opening or closing an air outlet; under the condition that the fan starts, the turnover plate rotates upwards under the wind power effect of the fan, so that the air outlet is opened, and under the condition that the fan is stopped, the turnover plate rotates downwards under the action of self gravity, so that the air outlet is closed.

Optionally, the vent cover plate for the urea prilling tower fan system further comprises a limiting member, and the limiting member is arranged along the rotation direction of the turnover plate and used for limiting the rotation angle of the turnover plate.

Optionally, the limiting member is disposed along a rotation direction of the flap plate for opening the air outlet.

Optionally, the limiting member is a limiting block, and the limiting block is disposed on the fixing plate.

Optionally, the turning plate has a turning angle of 0 to 85 degrees.

Optionally, the number of the vent cover plates for the urea prilling tower fan system is two, and the two vent cover plates for the urea prilling tower fan system are arranged in a side-by-side mode.

Optionally, the fixed plate and the flipping plate are connected by a rotating shaft.

Optionally, the turnover plate is made of an aluminum alloy material.

By the above-mentioned the technical scheme of the utility model provides a can see out, the utility model provides a vent flap board for urea prilling tower fan system connects in air pipe's lateral wall through the fixed plate, and the fixed plate rotates with the returning face plate to be connected, under the condition that the fan started for the returning face plate can rely on wind-force effect upwards to rotate and open the air outlet, and under the condition that the fan shut down, makes the returning face plate rotate downwards under self action of gravity, makes the air outlet closed. This a ventilation apron for urea prilling tower fan system simple structure, reasonable in design, the reliable operation can realize the automatic of the ventilation apron that is used for urea prilling tower fan system and open and close, reduces the manpower, improves work efficiency, can guarantee the normal start of many fans in the air pipe simultaneously.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Figure 1 is a schematic top view of a vent flap for a urea prilling tower fan system according to the present invention;

figure 2 is a schematic side view of a vent flap for a urea prilling tower fan system according to the present invention;

fig. 3 is a schematic view of a urea prilling tower with a fan system of the urea prilling tower equipped with ventilation ducts and fans.

Reference numerals: 1. a ventilation duct; 2. a fan; 3. a fixing plate; 4. a turnover plate; 5. a limiting member; 6. and rotating the shaft.

Detailed description of the preferred embodiments

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including 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 belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

For the convenience of understanding the embodiments of the present invention, the following description will be given by way of example only with reference to the accompanying drawings, and the embodiments are not limited thereto.

Referring to fig. 1 to 2, the embodiment of the utility model provides a vent flap for urea prilling tower fan system for the vent flap of urea prilling tower fan system sets up in air pipe 1's air outlet department, is provided with fan 2 in air pipe 1, and the vent flap for urea prilling tower fan system is located fan 2 top, and the vent flap for urea prilling tower fan system includes: the air duct comprises a fixed plate 3 and a turnover plate 4, wherein the fixed plate 3 is rotatably connected with the turnover plate 4, the fixed plate 3 is used for being connected with the side wall of the air duct 1, and the turnover plate 4 is used for opening or closing an air outlet; under the condition that fan 2 starts, returning face plate 4 upwards rotates under fan 2's wind-force effect for the air outlet is opened, and under the condition that fan 2 shut down, returning face plate 4 downwards rotates under self action of gravity, makes the air outlet closed.

By applying the technical scheme of the embodiment of the utility model, when the fan 2 works, the turnover plate 4 can be opened by the wind pressure output by the fan 2, thereby realizing ventilation and heat dissipation of the ventilation pipeline 1 and preventing the fan 2 from generating the inversion phenomenon; when the fan 2 stops working, the turnover plate 4 seals the ventilation pipeline 1 by means of self gravity, so that rain and snow are prevented from entering the fan 2.

In addition, the shape of the flap plate 4 is not limited in the present application, and may be rectangular, trapezoidal, semicircular, or the like, as long as it can seal the air outlet.

Referring to fig. 1 to 2, the vent cover plate for a fan system of a urea prilling tower in some embodiments further includes a limiting member 5, and the limiting member 5 is disposed along a rotation direction of the turning plate 4 and is used for limiting a rotation angle of the turning plate 4.

In some embodiments, the flap 4 can be rotated up or down to open or close the outlet, by providing a limit stop 5 to limit the range of rotation of the flap 4.

Referring to fig. 1 to 2, the limiting member 5 in some embodiments is disposed along a rotation direction of the flap 4 for opening the air outlet.

In some embodiments, a stop 5 is provided in the upward rotation direction of the flipping panel 4 to limit the maximum angle of upward rotation of the flipping panel 4.

In some optional embodiments, one end of the limiting member 5 is disposed on a side of the turning plate 4 opposite to the air outlet, and when the turning plate 4 rotates to the maximum angle, the other end of the limiting member 5 abuts against the fixing plate 3.

Referring to fig. 1 to 2, in some embodiments, the limiting member 5 is a limiting block disposed on the fixing plate.

In some embodiments, the stopper sets up in the one side of returning the air outlet of 4 backs to of returning the board, and the one end of stopper is installed on fixed plate 3, and when returning the board 4 to rotate the biggest angle, the other end and the 4 butt of returning the board of stopper. Wherein, the limiting block is obliquely arranged towards the direction of the turnover plate 4.

Referring to fig. 1-2, the turning plate 4 in some embodiments is rotated at an angle of 0 to 85 degrees.

In some embodiments, the flap 4 rotates between 0 degrees and 85 degrees to ensure that the flap 4 can descend by its own weight when the fan 2 stops operating.

Referring to fig. 1 to 2, in some embodiments, the number of the vent covers for the fan system of the urea prilling tower is two, and the two vent covers for the fan system of the urea prilling tower are arranged in a side-by-side manner.

In some embodiments, two ventilation cover plates for the fan system of the urea granulation tower are symmetrically arranged, the two fixing plates 3 are respectively and fixedly connected with the edge of the ventilation pipeline 1, the two turnover plates 4 are in butt joint, and when the fan 2 works, the two turnover plates 4 respectively rotate towards two sides, so that the air outlet can be quickly opened, and the heat dissipation and ventilation effects are good.

In some optional embodiments, sealing strips are arranged at the edges of the two butted turnover plates 4, so that when the fan 2 is in a shutdown state, the ventilation pipeline 1 is sealed, and the fan 2 in the pipeline is effectively protected.

Referring to fig. 1 to 2, the fixed plate 3 and the flipping plate 4 are connected by a rotating shaft 6.

In some embodiments, the fixed plate 3 and the turnover plate 4 are connected through the rotating shaft 6, so that the structure is simple, and the installation and the disassembly are convenient. The rotating shaft 6 is also provided with a bearing which is connected with the fixed plate 3.

Wherein, the mode of rotation connection has a lot of, for example, fixed plate 3 and returning face plate 4 can also be through hinge connection, and this application does not do the restriction to fixed plate 3 and returning face plate 4 rotation connection mode.

Referring to fig. 1-2, in some embodiments, the roll-over plate 4 is made of aluminum alloy.

The roll-over plate 4 in some embodiments is a lightweight high-strength aluminum alloy material so that the fan 2 can easily open the roll-over plate 4.

Referring to fig. 1 to 3, air pipe 1 is vertical to be set up, the top is provided with the air outlet, air pipe 1's inside is provided with many fans 2, many fans 2 set up along air pipe 1 inside circumference, the embodiment of the utility model provides a vent flap for urea prilling tower fan system, this a quantity of vent flap for urea prilling tower fan system is two, two vent flaps that are used for urea prilling tower fan system are run from opposite directions and are set up, every vent flap that is used for urea prilling tower fan system includes fixed plate 3, returning face plate 4 and stopper, wherein the one end of returning face plate 4 passes through axis of rotation 6 with fixed plate 3 and is connected, the other end of returning face plate 4 can revolute axis of rotation 6 and rotate, fixed plate 3 passes through the edge of bolt fastening in air pipe 1, the stopper is fixed in fixed plate 3 top and is located one side that returning face plate 4 back to the air outlet. When the fan 2 is started, the two turnover plates 4 are rotated upwards by the power of the fan 2 and opened towards two sides, so that the air outlet is ventilated, and the situation that the fan 2 which is started later cannot be started due to reverse rotation can be prevented; when the fan 2 is stopped, the flap 4 falls back to the off state due to its own weight, and the suction caused by the other fans 2.

To sum up, the embodiment of the utility model provides a vent flap plate for urea prilling tower fan system has following beneficial effect:

when the fan 2 works, the turnover plate 4 can be opened by means of the wind pressure output by the fan 2, so that the ventilation and the heat dissipation of the ventilation pipeline 1 are realized, and the inversion phenomenon of the fan 2 is prevented; when the fan 2 stops working, the turnover plate 4 seals the ventilation pipeline 1 by means of self gravity, and rain and snow are prevented from entering the fan 2.

Those of ordinary skill in the art will understand that: the figures are schematic representations of one embodiment, and the blocks or processes in the figures are not necessarily required to practice the present invention.

Those of ordinary skill in the art will understand that: the components in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be correspondingly changed in one or more devices different from the embodiments. The components of the above embodiments may be combined into one component, or may be further divided into a plurality of sub-components.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a vent flap for urea prilling tower fan system, a serial communication port, a vent flap for urea prilling tower fan system sets up in air pipe's air outlet department, be provided with the fan in the air pipe, a vent flap for urea prilling tower fan system is located the fan top, a vent flap for urea prilling tower fan system includes: the air duct comprises a fixed plate and a turnover plate, wherein the fixed plate is rotationally connected with the turnover plate, the fixed plate is used for being connected with the side wall of the air duct, and the turnover plate is used for opening or closing the air outlet;

under the condition that the fan is started, the turnover plate rotates upwards under the action of wind power of the fan, so that the air outlet is opened, and under the condition that the fan is stopped, the turnover plate rotates downwards under the action of self gravity, so that the air outlet is closed.

2. The vent flap for a fan system of a urea prilling tower according to claim 1, further comprising a limiting member disposed along a direction of rotation of the flipping plate for limiting a rotation angle of the flipping plate.

3. The vent flap for a fan system of a urea prilling tower according to claim 2, wherein the stop element is disposed along a rotational direction in which the flap opens the air outlet.

4. The vent flap for a fan system of a urea prilling tower according to claim 3, wherein the limiting member is a limiting block disposed on the fixing plate.

5. The vent flap for a urea prilling tower fan system according to claim 2, wherein the angle of rotation of the flap plate is between 0 and 85 degrees.

6. The vent flap for a fan system of a urea prilling tower according to claim 1, wherein the number of the vent flaps for the fan system of the urea prilling tower is two, and the two vent flaps for the fan system of the urea prilling tower are arranged in a side-by-side manner.

7. The vent panel for a urea prilling tower fan system according to claim 1, wherein the fixed plate and the flipping plate are connected by a rotating shaft.

8. The vent flap for a fan system of a urea prilling tower of claim 1, wherein the flap plate is made of aluminum alloy.