Ventilation device of explosion-proof positive pressure room

Abstract

The utility model discloses a ventilation device of an explosion-proof positive pressure room, which particularly relates to the technical field of room ventilation and comprises a ventilation mounting plate, a ventilation supporting pipe is arranged in the middle of the upper end of the ventilation mounting plate, a concave mounting groove is formed in the upper side of the inner end face of the ventilation supporting pipe, and a locking internal thread is arranged on the upper side of the inner end face of the concave mounting groove. An adaptive mounting ring is arranged in the concave mounting groove, and a connecting mounting plate is arranged on the inner end face of the adaptive mounting ring. And a cooling fan is arranged in the middle of the connecting mounting plate. During actual use, the adaptive mounting ring can be conveniently disassembled in the state that the adaptive mounting ring, the concave mounting groove and the connecting mounting plate are correspondingly arranged, and meanwhile the adaptive mounting ring can be conveniently disassembled in the state that the locking connecting piece, the locking convex block, the separation net, the locking internal thread and the locking external thread are correspondingly arranged. And the locking connecting piece can be conveniently locked and fixed, so that the connecting mounting plate and the cooling fan can be effectively taken out from the interior of the concave mounting groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to a room ventilation technical field, concretely relates to a ventilation device of explosion -proof positive pressure room. BACKGROUND

[0002] The main purpose of the ventilation technology of the explosion -proof positive pressure room is to prevent explosive gas from entering the room interior, thereby reducing the explosion risk, ensuring the safety of personnel and equipment, there are a large number of electrical cabinets in the room, and the cost of explosion -proof modification for each electrical cabinet is considerable, and the construction period is long, so a reliable cost-effective solution is needed, first, when the room is changed into positive pressure, by establishing a positive pressure environment, the air pressure inside the room is always higher than the outside environment, thereby preventing the external explosive gas from penetrating into the room interior, by calculating the volume of the pipeline and the room, the air volume of the fan, the ventilation time is calculated, but the ventilation device is easy to accumulate dust on the surface of the ventilation equipment when working for a long time, thereby affecting the ventilation efficiency of the ventilation device. UTILITARY MODEL CONTENTS

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a ventilation device of explosion -proof positive pressure room, and the technical problems to be solved by the utility model are: how to increase the convenience of dust adsorption cleaning on the surface of the ventilation device.

[0004] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a ventilation device of explosion -proof positive pressure room, including ventilation installation board, the middle part of its upper end is equipped with ventilation support pipe, the upper side of the inner end surface of ventilation support pipe is equipped with concave installation groove, the upper side of the inner end surface of concave installation groove is equipped with locking internal thread, the inside of concave installation groove is equipped with adaptive installation ring, the inner end surface of adaptive installation ring is equipped with connection installation plate;

[0005] The middle part of connection installation plate is equipped with heat dissipation fan, the lower end of heat dissipation fan output shaft is equipped with heat dissipation blade, the outside of ventilation support pipe upper end is equipped with locking connecting piece, the inside of locking connecting piece lower end is equipped with locking protruding block, the outer end surface of locking protruding block is equipped with locking external thread.

[0006] In a preferred embodiment, the lower end of the ventilation installation board is provided with a sealing installation pad, and a circular groove is formed in the end surface of the sealing installation pad.

[0007] The ventilation installation board is connected to the ventilation opening of the positive pressure room through the installation bolt, and the outer end surface of the locking connecting piece is provided with an anti-skid protrusion.

[0008] In a preferred embodiment, the upper side of the inner end surface of the locking connecting piece is provided with a separation net, and the sealing installation pad is a rubber material member.

[0009] The outer end surface of the sealing mounting pad in the top view is arranged in a coplanar state with the outer end surface of the ventilation mounting plate in the top view, and the inner end surface of the circular groove is arranged in a coplanar state with the inner end surface of the ventilation support pipe.

[0010] In a preferred embodiment, a plurality of circular grooves are arranged in a ring array state outside the center point of the locking connector in the top view.

[0011] A plurality of mounting bolts are arranged in an array state on both sides of the vertical central axis of the ventilation mounting plate in the top view.

[0012] In a preferred embodiment, the inner end surface of the concave mounting groove is adapted to the outer end surface of the adaptive mounting ring, and the locking internal thread and the locking external thread are adapted by clamping.

[0013] A plurality of connecting mounting plates are arranged in an array state outside the center point of the heat dissipation fan in the top view.

[0014] In a preferred embodiment, the inner end surface of the adaptive mounting ring is adapted to the inner end surface of the ventilation support pipe, the heat dissipation fan is in an electrically connected state with the external control device, and the inner end surface of the locking protrusion is arranged in a coplanar state with the inner end surface of the ventilation support pipe.

[0015] The utility model has the following advantages:

[0016] In actual use, the adaptive mounting ring can be conveniently disassembled under the corresponding arrangement of the adaptive mounting ring, the concave mounting groove and the connecting mounting plate, and the locking connector can be conveniently locked and fixed under the corresponding arrangement of the locking connector, the locking protrusion, the isolation net, the locking internal thread and the locking external thread, thereby effectively increasing the removal of the connecting mounting plate and the heat dissipation fan from the inside of the concave mounting groove, conveniently cleaning the dust adsorbed on the surface of the locking protrusion and the heat dissipation blade, and effectively increasing the efficiency and effect of the ventilation support pipe on the ventilation of the positive pressure room. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed in the embodiment or prior art description. Obviously, the drawings in the following description are only exemplary, and those skilled in the art can obtain other implementation drawings according to the provided drawings without creative labor.

[0018] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the utility model, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that the utility model can produce, should still fall within the scope of the technical content disclosed by the utility model.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the bottom structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the overall main cross-sectional structure of the utility model.

[0022] Figure 4 It is a schematic diagram of the overall cross-sectional connection structure of the utility model.

[0023] In the figure: 1 ventilation mounting plate, 2 mounting bolt, 3 ventilation support pipe, 4 sealing mounting pad, 5 locking connecting piece, 6 anti-skid boss, 7 circular groove, 8 locking boss, 9 isolation net, 10 adaptive mounting ring, 11 concave mounting groove, 12 locking internal thread, 13 locking external thread, 14 connecting mounting plate, 15 cooling fan, 16 cooling blade. DETAILED DESCRIPTION

[0024] The embodiments of the utility model are described below by specific examples. Those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. Obviously, the described examples are part of the embodiments of the utility model, not all. Based on the examples in the utility model, all other examples obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] The utility model provides a kind of ventilation device of explosion-proof positive pressure room, as shown in Figure 1 And 2 It includes ventilation mounting plate 1, the middle part of its upper end is equipped with ventilation support pipe 3, the outside of the upper end of ventilation support pipe 3 is equipped with locking connecting piece 5, the lower end of ventilation mounting plate 1 is equipped with sealing mounting pad 4, and the end surface of sealing mounting pad 4 is provided with circular groove 7.

[0026] Ventilation installation plate 1 is connected with the ventilation port of the positive pressure room through the installed mounting bolt 2, the outer end face of the locking connector 5 is provided with an anti-skid protrusion 6, the sealing installation pad 4 is a rubber material component, and the outer end face of the sealing installation pad 4 in the top view direction is arranged in a coplanar state with the outer end face of the ventilation installation plate 1 in the top view direction.

[0027] The inner end face of the circular groove 7 is arranged in a coplanar state with the inner end face of the ventilation support pipe 3, the number of the circular grooves 7 is multiple, and they are arranged in a ring array state outside the center point of the locking connector 5 in the top view direction, the number of the mounting bolts 2 is multiple, and they are arranged in an array state on both sides of the vertical center axis of the ventilation installation plate 1 in the top view direction, the ventilation installation plate 1 can be locked and fixed through the mounting bolt 2, and the sealing property of the installation of the ventilation installation plate 1 is improved through the sealing installation pad 4.

[0028] As shown in Figure 3 and 4 , the upper side of the inner end face of the ventilation support pipe 3 is provided with a concave installation groove 11, the upper side of the inner end face of the concave installation groove 11 is provided with a locking internal thread 12, the inside of the concave installation groove 11 is provided with an adaptive installation ring 10, the inner end face of the adaptive installation ring 10 is provided with a connecting installation plate 14, and the middle part of the connecting installation plate 14 is provided with a heat dissipation fan 15.

[0029] The lower end of the output shaft of the heat dissipation fan 15 is provided with a heat dissipation blade 16, the inner side of the lower end of the locking connector 5 is provided with a locking protrusion 8, the outer end face of the locking protrusion 8 is provided with a locking external thread 13, and the upper side of the inner end face of the locking connector 5 is provided with a separation net 9.

[0030] The inner end face of the concave installation groove 11 is adapted to the outer end face of the adaptive installation ring 10, which can facilitate the installation and fixation of the adaptive installation ring 10, thereby facilitating the cleaning of dust adsorbed on the surface of the heat dissipation blade 16, and facilitating the guidance of other things from the inside of the positive pressure room to the outside, which can effectively prevent the invasion of toxic gases and flammable and explosive substances, and reduce the probability of fire, explosion and other accidents, the locking internal thread 12 and the locking external thread 13 are adapted through clamping, which can facilitate the locking and fixation of the adaptive installation ring 10 in the threaded clamping state of the locking internal thread 12 and the locking external thread 13, and the number of the connecting installation plate 14 is multiple, and they are arranged in an array state outside the center point of the heat dissipation fan 15 in the top view direction.

[0031] The inner end face of the adaptive installation ring 10 is adapted to the inner end face of the ventilation support pipe 3, the heat dissipation fan 15 is in an electrically connected state with the external control device, and the inner end face of the locking protrusion 8 is arranged in a coplanar state with the inner end face of the ventilation support pipe 3.

[0032] In use, the staff installs the sealing installation pad 4 on one side of the ventilation installation plate 1, then installs the ventilation installation plate 1 at the ventilation opening of the positive pressure room through the installation bolt 2, then the staff can install the adaptive installation ring 10 in the recessed installation groove 11, then aligns the locking protruding block 8 with the recessed installation groove 11, then rotates the locking protruding block 8 into the recessed installation groove 11 under the clamping state of the recessed installation groove 11 and the locking internal thread 12, then the staff can drive the cooling fan 15 to work through the external control equipment.

[0033] When working, the pipeline between the ventilation device and the compressor motor is used for ventilation, and a flow meter and a proportional valve are additionally installed on the pipeline.

[0034] The two ventilation devices are installed in the explosion-proof positive pressure room, one is a normal fan, and the other is a standby fan.

[0035] When the pressure and flow are lower than the set value, an audible and visual alarm is triggered, a signal is sent to the PLC control box, and then to the frequency converter to automatically adjust the fan speed, open the pipeline air valve, and increase the air volume to the compressor motor to realize automatic adjustment.

[0036] When the dust on the surface of the isolation net 9 and the cooling blade 16 is more, the staff can rotate the locking connector 5, rotate the locking protruding block 8 out of the recessed installation groove 11, then take out the adaptive installation ring 10 and the cooling fan 15 from the recessed installation groove 11, and clean the dust on the surface of the isolation net 9 and the cooling blade 16, so as to ensure the ventilation effect of the ventilation support pipe 3.

[0037] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the range of protection required by the utility model.

Claims

1. A ventilation device for an explosion-proof positive pressure room, characterized in that Include: Ventilation mounting plate (1), the middle part of its upper end is provided with ventilation support pipe (3), the upper side of the inner end face of the ventilation support pipe (3) is provided with recessed mounting groove (11), the upper side of the inner end face of the recessed mounting groove (11) is provided with locking internal thread (12), the inside of the recessed mounting groove (11) is provided with adaptive mounting ring (10), the inner end face of the adaptive mounting ring (10) is provided with connecting mounting plate (14); The middle part of the connecting mounting plate (14) is provided with heat dissipation fan (15), the lower end of the output shaft of the heat dissipation fan (15) is provided with heat dissipation blade (16), the outside of the upper end of the ventilation support pipe (3) is provided with locking connecting piece (5), the inner side of the lower end of the locking connecting piece (5) is provided with locking protrusion (8), the outer end face of the locking protrusion (8) is provided with locking external thread (13).

2. The ventilation device of an anti-explosion positive pressure room according to claim 1, characterized in that: The lower end of the ventilation mounting plate (1) is provided with sealing mounting pad (4), the end face of the sealing mounting pad (4) is provided with circular groove (7); The ventilation mounting plate (1) is connected with the ventilation opening of the positive pressure room through the mounting bolt (2) provided, the outer end face of the locking connecting piece (5) is provided with anti-skid protrusion (6).

3. The ventilation device of an anti-explosion positive pressure room according to claim 2, characterized in that: The upper side of the inner end face of the locking connecting piece (5) is provided with isolation net (9), the sealing mounting pad (4) is a rubber material component; The outer end face of the sealing mounting pad (4) in the top view direction and the outer end face of the ventilation mounting plate (1) in the top view direction are arranged in a coplanar state, and the inner end face of the circular groove (7) and the inner end face of the ventilation support pipe (3) are arranged in a coplanar state.

4. The ventilation device of an anti-explosion positive pressure room according to claim 2, characterized in that: The number of circular grooves (7) is multiple, and they are arranged in a ring array state outside the center point of the top view direction of the locking connecting piece (5); The number of mounting bolts (2) is multiple, and they are arranged in an array state on both sides of the vertical center axis of the ventilation mounting plate (1) in the top view direction.

5. The ventilation device of claim 1, wherein: The inner end face of the recessed mounting groove (11) and the outer end face of the adaptive mounting ring (10) are adapted, and the locking internal thread (12) and the locking external thread (13) are adapted by clamping; The number of connecting mounting plates (14) is multiple, and they are arranged in an array state outside the center point of the heat dissipation fan (15) in the top view direction.

6. The ventilation device of an anti-explosion positive pressure room according to claim 1, characterized in that: The inner end face of the adaptive mounting ring (10) and the inner end face of the ventilation support pipe (3) are adapted, the heat dissipation fan (15) and the external control device are in an electrically connected state, and the inner end face of the locking protrusion (8) and the inner end face of the ventilation support pipe (3) are arranged in a coplanar state.

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