JPH04106442U - Double-tube electrically driven supply/exhaust ventilation fan - Google Patents

Abstract

(57) [Summary] [Purpose] Enclosed spaces such as ship engine rooms and pump rooms require sufficient ventilation because they contain equipment that generates heat. Traditionally, rooftops have been equipped with natural ventilation systems or electrically driven air supply/exhaust fans, but these only have one function: exhaust or air supply, so they leave large openings in enclosed areas. If the structure is such that the openings cannot be removed, it is necessary to install a large number of fans, or a large-capacity, high-head fan is required, which increases equipment costs and has disadvantages such as problems in selecting the installation location. Since there is, we will improve this. [Structure] The fan is of a double cylinder type, and a ventilation propeller 62 is placed inside the inner ventilation cylinder 58 to supply or exhaust air from the outer cylinder 72. Ducts 73 and 74 connect the place where it is needed or the place where the freshest air is needed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a double-tube electrically driven supply/exhaust ventilation fan.

0002

[Conventional technology]

Enclosed compartments such as a ship's engine room and pump room are Protecting equipment within the compartment and working within the compartment as a considerable amount of heat is generated. For the protection of personnel, provide sufficient ventilation and maintain the necessary temperature and other work and environment conditions. Must be. For this reason, conventionally, the enclosed compartment 11 shown in FIG. 5 is equipped with natural ventilation as shown in FIG. A station 20 is provided on the roof of the enclosed section, for example at position 12 in FIG. natural ventilation system 20 is a cover opening/closing handle 21, an opening/closing handle shaft 22, an opening/closing cover 23, and a rain shield. Cover 24, opening/closing handle shaft 25, rain shield stiffener 26, rain shield fixing bolt 27, ventilation pipe 28, rain shield bracket 29, etc., opening/closing handle 21, opening/closing handle 21, The door of the ventilation tube 28 is opened by operating the closing handle shaft 22 and opening the opening/closing cover 23. Ventilation is provided by the raft effect. Furthermore, conventionally, instead of the natural ventilation system 20, an electrically driven air supply/exhaust fan as shown in FIG. A door 30 is provided on the roof of the enclosed compartment 11, for example at the position 13 in FIG. This salary Similar to the natural ventilation system 20, the exhaust fan 30 has an opening/closing handle 31 and an opening/closing handle shaft. 32, opening/closing cover 33, rain cover 34, opening/closing handle shaft 35, rain shield stay It is equipped with a flap 36, a rain shield fixing bolt 37, a ventilation tube 38, and a rain shield receiver 39. In addition, there is an electric motor unit 40, a ventilation propeller drive shaft 41, a ventilation propeller -42, electric motor unit fixing hardware 43, ventilation propeller drive bearing 44, etc. It is equipped with This air supply/exhaust fan opens the ventilation propeller 42 after opening the opening/closing cover 33. to exhaust the air inside the enclosed compartment 11 or supply outside air to the inside. The enclosed space is ventilated by

0003

[Problem that the idea aims to solve] However, in these conventional ventilation systems for enclosed spaces, Since the enclosed space has only one function of exhaust or air supply, are large openings for exhaust air, such as door 15, opening 16, and window 1 as shown in Figure 5. 7th grade is required. Therefore, in the case of an enclosed compartment with a structure with few openings, the natural ventilation shown in Figure 6 In the case of a device, a large number of these are installed, and in the case of an electrically driven supply/exhaust fan in Figure 7, It is necessary to install a large number of these or use a large-capacity, high-head fan. Problems such as increased equipment costs and restrictions on the installation location of natural ventilation equipment or supply/exhaust fans There is. This invention was proposed in view of these circumstances, and it has low equipment costs and can be used in many cases. Therefore, there are no restrictions on installation location, and it is easy to replace enclosed spaces. The purpose of the present invention is to provide an air supply/exhaust ventilation fan that can provide sufficient air.

0004

[Means to solve the problem]

Therefore, the present invention is installed on the roof of the enclosed area of a ship, and has a cylindrical ventilation pipe and a corresponding Electrically driven ventilation propeller installed inside the ventilation tube and installed at the top of the ventilation tube a rain cover attached to the rain cover, and an upper opening of the ventilation pipe attached to the rain cover. An opening/closing cover that opens and closes, an outer cylinder attached to the outside of the ventilation cylinder, and an upper part of the outer cylinder. Connect the rain cover installed in the area, the ventilation tube and outer tube, and the specified location of the enclosed area. It is characterized by being equipped with a duct.

[0005]

[Effect]

According to such a configuration, the double-tube electrically driven supply/exhaust ventilation fan according to the present invention has an opening for exhausting or supplying air as well as having an air supply or exhaust function, Even in the case of an enclosed area with a structure with few openings, it is possible to install a large number of No need to use a fan. Also, focus on ventilating areas where air tends to accumulate. It is also possible to do so.

[0006]

【Example】 One embodiment of the present invention will be explained with reference to the drawings. FIG. 1 is a longitudinal sectional view thereof, and FIG. 2 is a diagram. 1 is a sectional view taken along the line II-II of FIG. 1, FIG. 3 is a sectional view taken along the line III-III of FIG. It is a sectional view taken along VI-VI of FIG. In the above figure, the double-tube electrically driven supply/exhaust ventilation fan 50 according to the present invention is shown in FIG. Similar to the electrically driven supply/exhaust fan shown, an opening/closing handle 51 and an opening/closing handle shaft 52 are provided. , opening/closing cover 53, rain cover 54, opening/closing handle shaft 55, rain shield stiffener -56, rain shield fixing bolt 57, ventilation tube 58, rain shield bracket 59, electric motor Unit 60, ventilation propeller drive shaft 61, ventilation propeller 62, electric motor In addition to the unit fixing hardware 63 and ventilation propeller drive bearing 64, the outer cylinder Receptacle 65, outer cylinder rain cover 66, outer cylinder rain cover stiffener 67, outer cylinder Fixing hardware 68, outer cylinder fixing bolt 69, outer cylinder rain shield receiver 70, outer cylinder rain shield fixing bolt route 71, outer cylinder 72, extension ventilation duct 73 with outer cylinder, ventilation tube extension ventilation duct 74. It is equipped with This double-tube electrically driven supply/exhaust ventilation fan 50 is installed on the rooftop of the enclosed section 11. For example, it is provided at position 14 in FIG. Now open/close with the open/close handle 51 etc. Open the bar 53 and turn the ventilation propeller 62 in the exhaust direction to open the duct 74. The air in the enclosed compartment is sucked out and the pressure inside the enclosed compartment is reduced. 2, outside air is drawn into the enclosed compartment via a ventilation duct 73. Therefore, the opening of the duct 74 is placed in the least ventilated area in the enclosed area, Placing the opening of the duct 73 at the point where fresh air is needed most will provide an extremely effective exchange. I can do it. If the ventilation propeller 62 is rotated in the opposite direction, the air will follow the opposite path to the opening/closing area. 11 and is likewise released into the atmosphere from the enclosed compartment by the reverse route.

[0007]

[Effect of the idea]

According to the present invention, the ventilation of the enclosed compartment of a ship is achieved by a double-tube electric generator with simultaneous supply and exhaust functions. By using a dynamically driven supply/exhaust fan, it is possible to reduce ventilation fan installation costs. In addition, technical constraints on the placement of ventilation fans can be reduced. In addition, this invention can be used in cases where windows cannot be installed in enclosed spaces or where windows cannot be opened. It can be effectively used for such purposes. In short, according to the present invention, a cylindrical ventilation system is installed on the roof of an enclosed area of a ship. The cylinder, an electrically driven ventilation propeller installed inside the ventilation cylinder, and the upper part of the ventilation cylinder. and a rain cover installed on the rain cover and the upper part of the ventilation pipe attached to the rain cover. an opening/closing cover that opens and closes the opening; an outer cylinder attached to the outside of the ventilation tube; The rain cover installed on the top of the cylinder, the ventilation cylinder, the outer cylinder, and the designated location of the enclosed area. The equipment cost is low and there is no need to install many units. Therefore, there are no restrictions on the installation location, and the enclosed space can be sufficiently ventilated. The present invention is extremely useful industrially because it provides an air supply/exhaust ventilation fan.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG. 1;

FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1;

FIG. 5 is a perspective view showing the entire enclosed compartment of the ship.

FIG. 6 is a longitudinal sectional view showing a conventional natural ventilation device.

FIG. 7 is a longitudinal cross-sectional view showing a conventional electrically driven supply/exhaust fan.

[0008]

[Explanation of symbols]

11 Enclosed area 12, 13, 14 position 15 Door 16 Aperture 17 Window 20 Natural ventilation system 21 Cover opening/closing handle 22 Opening/closing handle shaft 23 Opening/closing cover 24 Rain cover 25 Opening/closing handle shaft 26 Rain cover stiffener 27 Rain shield fixing bolt 28 Ventilation tube 29 Rain shield receiver 30 Electrically driven supply and exhaust fan 31 Cover opening/closing handle 32 Opening/closing handle shaft 33 Opening/closing cover 34 Rain cover 35 Opening/closing handle shaft 36 Rain cover stiffener 37 Rain shield fixing bolt 38 Ventilation tube 39 Rain shield receiver 40 Electric motor unit 41 Ventilation propeller drive shaft 42 Ventilation propeller 43 Electric motor unit fixing hardware 44 Ventilation propeller drive bearing 50 Double-tube electrically driven supply/exhaust ventilation fan 51 Cover opening/closing handle 52 Opening/closing handle shaft 53 Opening/closing cover 54 Rain cover 55 Opening/closing handle shaft 56 Rain cover stiffener 57 Rain shield fixing bolt 58 Ventilation tube 59 Rain shield receiver 60 Electric motor unit 61 Ventilation propeller drive shaft 62 Ventilation propeller 63 Electric motor unit fixing hardware 64 Ventilation propeller drive bearing 65 Outer tube holder 66 External rain cover 67 Outer rain cover stiffener 68 Outer cylinder fixing hardware 69 Outer cylinder fixing bolt 70 Outer cylinder rain shield receiver 71 Outer cylinder rain shield fixing bolt 72 Outer tube 73 Extended ventilation duct with outer cylinder 74 Ventilation tube extension ventilation duct

Claims (1)

[Scope of utility model registration request] [Claim 1] A cylindrical ventilation tube installed on the roof of an enclosed compartment of a ship, an electrically driven ventilation propeller installed inside the ventilation tube, and a rain cover installed on the top of the ventilation tube. an opening/closing cover attached to the rain cover to open and close the upper opening of the ventilation tube; an outer tube attached to the outside of the ventilation tube; a rain cover installed on the top of the outer tube; a ventilation tube; A double-tube electrically driven air supply/exhaust ventilation fan characterized by comprising a duct connecting an outer cylinder and a predetermined location in an enclosed compartment.