CN209444362U - Diffusion tower structure is used in a kind of ventilation of energy-saving type mine - Google Patents

Abstract

The utility model discloses an energy-saving diffusion tower structure for mine ventilation, which comprises a tower body and a fan arranged at the bottom of the tower body. The tower body is in the shape of a horn with the small diameter end facing down. The upper side of the air outlet end of the tower body is provided with a wind power generating device that utilizes exhaust wind in the tower body to generate electricity. Follow the trumpet-shaped air duct at the lower end, enter the interior, push the fan blades to rotate, and generate electricity for the wind generator, so that the electric energy is stored in the battery. After the storage is full, it can be used by the fan. Concentrate the wind to the middle, boost the pressure, and push the fan blades easily. At the same time, the resistance generated by the fan blades, a part of the wind rebounds, expands from the lower end of the fan tube to the surroundings, and the bolts are used to move the fan tube up and down and adjust to the air outlet. It is more reasonable to avoid the return air generated by the air duct from hindering the exhaust air, so that the exhausted wind energy can be reconverted into electrical energy, which can be used reasonably and save energy.

Description

A Diffusion Tower Structure for Energy-saving Mine Ventilation

technical field

The utility model relates to the energy-saving field of a diffusion tower for mine ventilation, in particular to an energy-saving diffusion tower structure for mine ventilation.

Background technique

At present, the 60° inclined diffusion tower commonly used in mines not only has a large ventilation resistance, but also has a serious vortex suction area at the outlet of the diffusion tower, which causes a large loss of fan kinetic energy; the traditional streamlined diffusion tower can improve the back suction of a part of the diffusion tower outlet However, during the operation, it was found that the phenomenon of outlet sucking still occurs under high inlet wind speed. Therefore, it is necessary to optimize the structure of the diffusion tower to save energy. Therefore, there is a horn-shaped diffusion tower, the inner diameter gradually increases from bottom to top, the pressure decreases, and it is not easy to generate return air and back suction. For example, the announcement number is CN201020583400.7 "The utility model relates to a The improved diffusion tower structure, in particular relates to a diffusion tower structure for mine ventilation, including a fan (4) and an exhaust passage, characterized in that: the exhaust passage is horn-shaped, the fan installation port (3) is a small opening, and the fan The installation port (3) passes through the central arc (2) and enlarges the air outlet (7) to form a horn-shaped exhaust passage. The horn-shaped exhaust passage is a brick-concrete wall (6) structure, and the fan ( 4) The casing (5) is fixedly connected with the fan installation port (3) of the exhaust passage; the utility model adopts masonry and concrete masonry to form a brick-concrete wall, and the inner wall of the streamlined brick-concrete wall is smoothed with cement. Guarantee the unimpeded air flow, effectively reduce the friction between the air flow and the diffusion tower; the utility model can reduce the noise by about 27.4dB, reduce the ventilation resistance by about 35Pa, and reduce the power consumption by about 80kW per day. The air discharged from the tuyere also has kinetic energy, otherwise, the wind from the lower side will not come out. In this case, the kinetic energy of the discharged wind will be wasted, resulting in a waste of resources, which is not energy-saving and reasonable.

Utility model content

The purpose of this utility model is to provide an energy-saving diffusion tower structure for mine ventilation, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: an energy-saving diffusion tower structure for mine ventilation, including a tower body and a fan arranged at the bottom of the tower body, the tower body is in the shape of a horn with the small diameter end facing downward;

The upper side of the air outlet end of the tower body is provided with a wind power generation device that utilizes exhaust wind in the tower body to generate electricity.

Preferably, the wind power generation device includes a fan cylinder with upper and lower ends arranged on the upper side of the air outlet of the tower body, and a wind generator with fan blades is installed in the fan tube, and the wind generator is electrically connected to a storage device. A storage battery used by the electric fan is used, and the air cylinder and the air outlet end are connected through a support mechanism.

Preferably, the support mechanism includes a ring-shaped support plate clamped on the circumference of the air outlet end, and a cross-shaped support frame is fixed on the inner cavity wall of the support plate and the lower side of the inner cavity wall of the air duct, and the two The support frames are connected by a telescopic mechanism that adjusts the distance from the air cylinder to the air outlet.

Preferably, the telescoping mechanism includes a support rod and a support tube respectively fixed on the two support frames, the support rod is inserted into the support tube, and the circumferential screw connection of the support tube has an inner end against the support rod bolts.

Preferably, the cross-section of the support plate is a right-angle shape that is clamped on the corners of the air outlet.

Preferably, the lower end of the air duct is trumpet-shaped

Compared with the prior art, the beneficial effect of the utility model is that the fan draws out the gas at the bottom of the tower body and rises along the tower body. The pressure is reduced, therefore, it is not easy to generate wind suction at the outlet end, and part of the wind force reaching the air outlet is scattered around, and most of it moves up into the air cylinder, and enters the interior along the trumpet-shaped air cylinder at the lower end. , to push the fan blades to rotate to generate electricity for the wind turbine, so that the electric energy can be stored in the battery. After the storage is full, it can be used by the fan. Here, the air duct is in the shape of a horn, which is convenient to gather the wind to the middle, boost the pressure, and facilitate the driving. At the same time, the resistance generated by the fan blades, a part of the wind rebounds, expands from the lower end of the fan tube to the surroundings, and the bolts are used to move the fan tube up and down, adjust the distance to the air outlet, and avoid the return air generated by the fan tube from hindering the exhaust. The wind is more reasonable, so that the discharged wind energy is re-converted into electrical energy, which can be reasonably used and more energy-saving.

Description of drawings

Fig. 1 is the structural representation of prior art;

Fig. 2 is a structural representation of the utility model;

Fig. 3 is the front view of the connection between the air duct and the support plate of the present invention;

Fig. 4 is a bottom view of the connection between the support frame on the upper side of the utility model and the blower;

Fig. 5 is a top view of the connection between the lower support frame and the support plate of the present invention.

In the figure: 1 tower body, 11 fans, 2 air ducts, 21 wind power generators, 22 support plates, 23 support frames, 24 support rods, 25 support cylinders.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 2 to 5, the utility model provides a technical solution for an energy-saving diffusion tower structure for mine ventilation: an energy-saving diffusion tower structure for mine ventilation, including a tower body 1 and a fan 11 arranged at the bottom of the tower body 1, The tower body 1 is in the shape of a horn with the small diameter end facing down.

The upper side of the air outlet end of the tower body 1 is provided with a wind power generating device utilizing exhaust wind in the tower body 1 to generate electricity. 2 is installed with a wind generator 21 with fan blades, and the wind generator 21 is electrically connected to a storage battery for the use of the fan 11, so that the effective use of wind energy is achieved and converted into electrical energy again, and the wind cylinder 2 and The air outlet ends are connected by a support mechanism to support the air cylinder 2. The support mechanism includes an annular support plate 22 clamped on the circumference of the air outlet end, and the inner cavity wall of the support plate 22 and the inner cavity wall of the air cylinder 2 The lower side is fixed with a cross-shaped support frame 23, and the two support frames 23 are connected by a telescopic mechanism that adjusts the distance from the air cylinder 2 to the air outlet. Large resistance, adjusted to a suitable position, the wind force generated by the rebound of the air duct 2 will not return to the air outlet, and will not affect the exhaust air, ensuring smooth exhaust air.

The telescoping mechanism includes a support rod 24 and a support tube 25 respectively fixed on two support frames 23, and the support rod 24 is plugged in the support tube 25. The sizes of the two support frames 23 are different. set, and the circumferential thread of the support tube 25 is connected with a bolt whose inner end is against the support rod 24, and the height can be adjusted up and down by loosening the bolt. , it is convenient to fit on the air outlet, and it is more firm. The lower end of the air duct 2 is trumpet-shaped, which is convenient for collecting wind, increasing the pressure in the air duct 2, and is also convenient for collecting more exhaust air.

The fan 11 draws out the gas at the bottom of the tower body 1 and rises along the tower body 1. During this process, the tower body 1 is in the shape of an ox horn, the diameter becomes larger during the rising process, and the pressure decreases. Therefore, it is not easy to generate gas at the outlet end. The wind suction phenomenon, and the wind reaching the air outlet, a part of it is scattered around, and most of it moves up into the air tube 2, and enters the interior along the trumpet-shaped air tube 2 at the lower end, pushing the fan blades to rotate, and generating electricity for the wind Generator 21 generates electricity, thereby electric energy is stored in the storage battery, after depositing is full, can be used for fan 11, and here air duct 2 is trumpet-shaped, is convenient to gather the wind to the middle like this, pressurized pressure, is convenient to push fan blade, simultaneously, fan The resistance generated by the leaves, a part of the wind rebounds, expands from the lower end of the air cylinder 2 to the surroundings, and the bolts are used to move the air cylinder 2 up and down to adjust the distance to the air outlet, so as to avoid the return air generated by the air cylinder 2 from hindering the exhaust air, and more Reasonable, in this way, the discharged wind energy will be re-converted into electrical energy, which can be reasonably used and more energy-saving.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. An energy-saving diffusion tower structure for mine ventilation, comprising a tower body (1) and a fan (11) arranged at the bottom of the tower body (1), the tower body (1) is in the shape of a horn with the small diameter end facing downwards ; It is characterized in that: the upper side of the air outlet end of the tower body (1) is provided with a wind power generating device that utilizes exhaust wind inside the tower body (1) to generate electricity. 2. An energy-saving diffuser tower structure for mine ventilation according to claim 1, characterized in that: said wind power generation device includes a fan cylinder ( 2), and a wind generator (21) with fan blades is installed in the fan cylinder (2), and the wind generator (21) is electrically connected to a storage battery for the use of the fan (11), and the fan cylinder (2) It is connected with the air outlet end through a support mechanism. 3. An energy-saving diffusion tower structure for mine ventilation according to claim 2, characterized in that: the support mechanism includes a ring-shaped support plate (22) clamped on the circumference of the air outlet end, and the support plate A cross-shaped support frame (23) is fixed on the inner cavity wall of (22) and the lower side of the inner cavity wall of the air duct (2), and the air duct (2) to the air outlet is adjusted between the two support frames (23). Distance telescopic mechanism connection. 4. An energy-saving diffusion tower structure for mine ventilation according to claim 3, characterized in that: the telescopic mechanism includes a support rod (24) and a support cylinder ( 25), the support rod (24) is plugged into the support tube (25), and the circumferential thread of the support tube (25) is connected with a bolt whose inner end is against the support rod (24). 5 . The energy-saving diffusion tower structure for mine ventilation according to claim 3 , characterized in that: the cross section of the support plate ( 22 ) is a right-angle shape that is clamped on the corners of the air outlet. 6 . 6. An energy-saving diffusion tower structure for mine ventilation according to any one of claims 2 to 5, characterized in that: the lower end of the air duct (2) is trumpet-shaped.