Anti-explosion positive-pressure ventilation air conditioning unit

Abstract

The utility model discloses an explosion-proof positive pressure ventilation air conditioning unit, which relates to the technical field of air conditioning units and comprises a box body, the box body comprises an air mixing power section, a primary cooling section, a heating section, a humidifying and disinfecting section and a medium-efficiency air outlet section which are sequentially arranged along the air supply direction, and connecting components for connection are arranged among the sections. A pressing and fixing assembly used for reinforcing the box body is arranged on the connecting assembly, and sealing assemblies used for sealing are further arranged between the sections. According to the utility model, the outer surface of the box body can be pressed, fixed and limited to a certain extent, the box body can be effectively prevented from generating larger expansion deformation due to larger internal pressure bearing, the purpose of improving the firmness of the box body is achieved, the purpose of triple sealing at the joints of all functional sections can be achieved, and the service life of the box body is prolonged. And through triple sealing, the sealing performance between the sections can be effectively improved, the phenomenon of air leakage at the joints between the sections is effectively prevented, and normal operation of the air conditioning unit is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning units, in particular to an explosion-proof positive pressure ventilation air conditioning unit. Background Art

[0002] Air handling unit (AHU) is a centralized air handling system, which originated from a forced hot air heating and ventilation system that distributes heated air through air ducts in a centralized setting. The basic centralized system is a full air single zone system, generally including fans, heaters, coolers and filter components. The AHU mentioned here refers to a single return air system, and its basic working process is: the fresh air from the outside is mixed with a part of the return air from the room, and then filtered out harmful substances such as dust, smoke, black smoke and organic particles in the air through filters.

[0003] A clean air conditioning unit disclosed in the prior art CN 210602020 U includes an air conditioning box and a functional part, wherein the functional part includes a mixing section, a primary filter section, a fan section, a medium filter section, a surface cooler section, an electric heating section, an ultraviolet sterilization section, a sub-high efficiency filter section, a dry steam humidification section and an air outlet section arranged in sequence along the air supply direction of the air conditioning unit. Although the utility model ensures that the components of the clean air conditioning unit are always in a positive pressure state to prevent dust accumulation. At the same time, positive pressure can also prevent untreated air outside the unit from entering through the gaps in the unit panel and polluting the transported air. However, the utility model and the traditional positive pressure air conditioning unit will cause a large pressure in the functional section of the unit under the action of the fan blowing, which may cause certain damage to the box over time, causing the box to undergo certain expansion deformation, and when the box expands, the connection stability between the components will also deteriorate, which is easy to cause air leakage at the connection between the functional sections, which not only affects the normal air supply work, but also increases the workload of later maintenance. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an explosion-proof positive pressure ventilation and air conditioning unit, which solves the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: an explosion-proof positive pressure ventilation air conditioning unit, comprising a box body, the box body comprising a mixed air power section, a primary cooling section, a heating section, a humidification and disinfection section and a medium-efficiency air outlet section arranged in sequence along the air supply direction, and a connecting component for connection is provided between each section;

[0008] The connecting assembly includes a first rib plate and a second rib plate provided on both sides of each section, the first rib plate and the second rib plate are both provided with through holes, and the connecting assembly also includes a bolt for connecting the first rib plate and the second rib plate, and a nut matching the rib plate is installed at the threaded end of the bolt;

[0009] The connection assembly is provided with a compression assembly for reinforcing the box body, the compression assembly includes a mounting seat sleeved on the bolt and a compression frame for compressing the box body, a connecting shaft is provided on the compression frame, and the compression frame is installed on the mounting seat through the connecting shaft, a pressing plate is provided on the compression frame, and the connection assembly also includes a pressing shaft respectively provided on the first rib plate and the second rib plate, and the pressing shaft is used to press the compression frame;

[0010] A sealing assembly for sealing is also provided between each section, and the sealing assembly includes a docking frame and a pressure ring provided on the two end surfaces of each section, the docking frame is provided with a docking groove with an open outer side, a first airbag ring is provided inside the docking groove, the pressure ring is used to squeeze the first airbag ring, a second airbag ring is provided outside the docking frame, a conduit for connecting the second airbag ring and the first airbag ring is provided between the second airbag ring and the first airbag ring, and the sealing assembly also includes a sleeve ring, the sleeve ring is used to be sleeved on the second airbag ring, and a sealing ring is provided on the sleeve ring.

[0011] Optionally, the mixed air power section is respectively provided with a fresh air inlet and a return air inlet, and an explosion-proof fan and a flow equalizing plate are sequentially provided in the mixed air power section along the air supply direction, a primary filter and a surface cooler are sequentially provided in the primary cooling section along the air supply direction, an empty box section and a heating coil are sequentially provided in the heating section along the air supply direction, a steam humidifier and an ultraviolet lamp are sequentially provided in the humidification and disinfection section along the air supply direction, a medium efficiency filter and an air outlet section are sequentially provided in the medium efficiency air outlet section along the air supply direction, and an air supply outlet is opened on the medium efficiency air outlet section.

[0012] Optionally, the mixed air power section, primary cooling section, heating section, humidification and disinfection section and medium-efficiency air outlet section are all provided with inspection doors.

[0013] Optionally, there are several connecting components between each segment, and they are distributed divergently.

[0014] Optionally, there are two pressing frames on each of the mounting seats, which are symmetrically distributed, and the shape of the pressing frames is bent.

[0015] Optionally, the docking frame, the pressure ring, the first airbag ring, the second airbag ring, the sleeve ring and the sealing ring are all square rings, the inner ring of the sleeve ring is a quadrangular pyramid, and the larger opening of the inner ring faces outward.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. It can play a certain role in limiting the compression of the outer surface of the box, effectively preventing the box from expanding and deforming due to the large internal pressure, thereby preventing the internal pressure from damaging the box to a certain extent, achieving the purpose of improving the firmness of the box. At the same time, the reinforcement work is simple and convenient to operate, ensuring the convenience of box assembly;

[0019] 2. The purpose of triple sealing can be achieved at the connection between each functional section. The triple sealing can effectively improve the sealing between the sections and effectively prevent air leakage at the connection between the sections, thereby ensuring the normal operation of the air-conditioning unit and reducing the failure rate of the unit to a certain extent, thereby reducing the workload of later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the formal cross-sectional structure of the utility model;

[0022] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0023] Figure 4 This is a schematic diagram of the planar structure of the compression assembly of the utility model;

[0024] Figure 5 It is a partial cross-sectional structural schematic diagram of the compression assembly of the utility model;

[0025] Figure 6 For this utility model Figure 2 The enlarged structural diagram at B in the middle;

[0026] Figure 7 It is a side view stereoscopic structural diagram of the functional section of the utility model;

[0027] Figure 8 It is a schematic diagram of the exploded three-dimensional partial structure of the sealing component of the utility model.

[0028] In the figure: 1, mixed air power section; 2, primary cooling section; 3, heating section; 4, humidification and disinfection section; 5, medium-efficiency air outlet section; 6, connecting assembly; 601, first rib plate; 602, second rib plate; 603, bolts; 604, nuts; 7, pressing assembly; 701, mounting seat; 702, pressing frame; 703, connecting shaft; 704, pressing shaft; 705, pressing plate; 8, sealing assembly; 801, docking frame; 802, docking groove; 803, The first air bag ring; 804, the second air bag ring; 805, the duct; 806, the pressure ring; 807, the collar; 808, the sealing ring; 9, the fresh air inlet; 10, the return air inlet; 11, the air supply inlet; 12, the inspection door; 13, the explosion-proof fan; 14, the flow equalizing plate; 15, the primary filter; 16, the surface cooler; 17, the empty box section; 18, the heating coil; 19, the steam humidifier; 20, the ultraviolet lamp; 21, the medium efficiency filter; 22, the air outlet section. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model provides Figures 1 to 5 Embodiment 1 of an explosion-proof positive pressure ventilation and air conditioning unit shown:

[0031] The box body includes a mixed air power section 1, a primary cooling section 2, a heating section 3, a humidification and disinfection section 4 and a medium-efficiency air outlet section 5 which are arranged in sequence along the air supply direction, and a connecting component 6 for connection is provided between each section;

[0032] The mixed air power section 1 is provided with a fresh air inlet 9 and a return air inlet 10, respectively, and an explosion-proof fan 13 and a flow equalizer 14 are sequentially arranged in the mixed air power section 1 along the air supply direction. The explosion-proof fan 13 can draw fresh air from the outside into the mixed air power section 1 through the fresh air inlet 9, and at the same time, it can also draw part of the air exhausted in the room into the mixed air power section 1 through the return air inlet 10, and after mixing, it is discharged to the flow equalizer 14 for flow equalization, and then enters the primary cooling section 2. The primary cooling section 2 is sequentially provided with a primary filter 15 and a surface cooler 16 along the air supply direction. The primary filter 15 can perform primary filtration on the delivered air, and then it can also be cooled through the surface cooler 16, and then it is delivered to the heating section 3. The heating section 3 An empty box section 17 and a heating coil 18 are sequentially arranged along the air supply direction. The heating coil 18 can heat the transported air, and then continue to be transported to the humidification and disinfection section 4. A steam humidifier 19 and an ultraviolet lamp 20 are sequentially arranged in the humidification and disinfection section 4 along the air supply direction. The steam humidifier 19 and the ultraviolet lamp 20 can respectively adjust the humidity and disinfect the air, and then transport it to the medium-efficiency air outlet section 5 after treatment. A medium-efficiency filter 21 and an air outlet section 22 are sequentially arranged in the medium-efficiency air outlet section 5 along the air supply direction. The medium-efficiency filter 21 performs medium-efficiency filtration on the air and then discharges it into the air outlet section 22. An air supply port 11 is opened on the medium-efficiency air outlet section 5, and the air in the air outlet section 22 can be delivered to the room through the air supply port 11.

[0033] The mixed air power section 1, the primary cooling section 2, the heating section 3, the humidification and disinfection section 4 and the medium-efficiency air outlet section 5 are all provided with maintenance doors 12 to facilitate maintenance of the equipment in each section;

[0034] There are several connecting components 6 between each segment, and they are distributed divergently;

[0035] The connection assembly 6 includes a first rib plate 601 and a second rib plate 602 provided on both sides of each section. Through holes are provided on the first rib plate 601 and the second rib plate 602. The through holes on two adjacent first rib plates 601 and the second rib plates 602 are coaxial. The connection assembly 6 also includes a bolt 603 for connecting the first rib plate 601 and the second rib plate 602. A nut 604 matching the bolt 603 is installed at the threaded end of the bolt 603.

[0036] When assembling the unit, place each section in sequence along the air supply direction, and ensure that each section is butted together, then insert the bolt 603 into the through holes on the two adjacent first rib plates 601 and the second rib plates 602 on the left and right, then screw the nut 604 onto the threaded end of the bolt 603, and tighten the nut 604 with a tool, so that the two adjacent first rib plates 601 and the second rib plates 602 can be tightened, and the peripheral connection components 6 can be assembled in this way, so that the sections can be tightened, assembled and fixed to ensure the stability of the sections.

[0037] The utility model provides Figure 1 , Figures 3 to 5 Embodiment 2 of an explosion-proof positive pressure ventilation and air conditioning unit shown:

[0038] A compression component 7 for reinforcing the box body is provided on the connecting component 6. The compression component 7 includes a mounting seat 701 sleeved on the bolt 603 and a compression frame 702 for pressing the box body. There are two compression frames 702 on each mounting seat 701, and they are symmetrically distributed on the left and right. The shape of the compression frame 702 is a bending type, and the bending angle is an acute angle. A connecting shaft 703 is provided on the compression frame 702, and the compression frame 702 is installed on the mounting seat 701 through the connecting shaft 703, so that the compression frame 702 can be rotated on the mounting seat 701 through the connecting shaft 703. A pressing plate 705 is provided on the compression frame 702. The connecting component 6 also includes pressing shafts 704 respectively arranged on the first rib plate 601 and the second rib plate 602. The two pressing shafts 704 are symmetrically distributed on the left and right, and the pressing shaft 704 is used to squeeze the pressing frame 702.

[0039] During the assembly process between the sections, the mounting seat 701 is put on the bolt 603 and ensured to be located between the two adjacent first ribs 601 and the second ribs 602. Then, during the process of tightening the nut 604, the distance between the two adjacent first ribs 601 and the second ribs 602 will gradually decrease. At the same time, the two pressure shafts 704 on the first ribs 601 and the second ribs 602 begin to squeeze the end of the pressing frame 702 away from the pressing plate 705, and make the pressing frame 702 rotate a certain angle around the connecting shaft 703 on the mounting seat 701. At this time, the other end of the pressing frame 702 can be pressed on the outer surface of the box through the pressing plate 705. Until the nut 604 is tightened, the pressing plate 705 is also pressed on the outer surface of the box. At this time, the pressing plate 705 can play a certain compression and limiting role on the outer surface of the box, thereby achieving the purpose of improving the firmness of the box.

[0040] The utility model provides Figure 1 , Figure 2 , Figures 6 to 8 Embodiment 3 of an explosion-proof positive pressure ventilation and air conditioning unit shown:

[0041] A sealing assembly 8 for sealing is also provided between each section. The sealing assembly 8 includes a docking frame 801 and a pressure ring 806 provided on both end surfaces of each section. A docking groove 802 with an open outer side is provided on the docking frame 801. The docking groove 802 corresponds to the position of the pressure ring 806. A first airbag ring 803 is provided inside the docking groove 802. The pressure ring 806 is used to squeeze the first airbag ring 803. A second airbag ring 804 is provided outside the docking frame 801. The second airbag ring 804 and the pressure ring 806 are connected to each other. A conduit 805 is provided between the first airbag ring 803 for connecting the two. When the first airbag ring 803 is squeezed and deformed, the air inside it can enter the second airbag ring 804 through the conduit 805, and cause the second airbag ring 804 to expand and deform to a certain extent. The sealing assembly 8 also includes a collar 807, which is fixed on the end surface of each section close to the pressure ring 806. The collar 807 is used to be sleeved on the second airbag ring 804, and a sealing ring 808 is provided on the collar 807;

[0042] The docking frame 801, the pressure ring 806, the first airbag ring 803, the second airbag ring 804, the sleeve ring 807 and the sealing ring 808 are all square rings. The inner ring of the sleeve ring 807 is a quadrangular pyramid with the larger opening of the inner ring facing outwards.

[0043] In the process of tightening the sections by means of bolts 603 and nuts 604, the pressure ring 806 is slowly inserted into the docking groove 802, and at the same time, the sleeve ring 807 is slowly put on the second airbag ring 804. In this process, the pressure ring 806 can squeeze the first airbag ring 803 and cause it to undergo elastic deformation, thereby achieving the first seal. The air in the deformed first airbag ring 803 can enter the second airbag ring 804 through the conduit 805, causing the second airbag ring 804 to undergo a certain deformation. The expansion deformation causes the second airbag ring 804 to fit tightly against the inner ring of the collar 807, thereby achieving a second seal. Moreover, since the inner ring of the collar 807 is in the shape of a quadrangular pyramid, its inner ring is in the shape of an inclined surface, thereby increasing the contact area between the second airbag ring 804 and the inner ring of the collar 807, thereby improving the sealing effect to a certain extent. The collar 807 will also press the sealing ring 808 tightly against the end face of another functional segment, thereby achieving a third seal. The triple seal can effectively improve the sealing between the segments.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An explosion-proof positive pressure ventilation and air conditioning unit, comprising a box, characterized in that: The box body includes a mixed air power section, a primary cooling section, a heating section, a humidification and disinfection section, and a medium-efficiency air outlet section arranged in sequence along the air supply direction, and a connecting component for connection is provided between each section; The connecting assembly includes a first rib plate and a second rib plate provided on both sides of each section, the first rib plate and the second rib plate are both provided with through holes, and the connecting assembly also includes a bolt for connecting the first rib plate and the second rib plate, and a nut matching the rib plate is installed at the threaded end of the bolt; The connection assembly is provided with a compression assembly for reinforcing the box body, the compression assembly includes a mounting seat sleeved on the bolt and a compression frame for compressing the box body, a connecting shaft is provided on the compression frame, and the compression frame is installed on the mounting seat through the connecting shaft, a pressing plate is provided on the compression frame, and the connection assembly also includes a pressing shaft respectively provided on the first rib plate and the second rib plate, and the pressing shaft is used to press the compression frame; A sealing assembly for sealing is also provided between each section, and the sealing assembly includes a docking frame and a pressure ring provided on the two end surfaces of each section, the docking frame is provided with a docking groove with an open outer side, a first airbag ring is provided inside the docking groove, the pressure ring is used to squeeze the first airbag ring, a second airbag ring is provided outside the docking frame, a conduit for connecting the second airbag ring and the first airbag ring is provided between the second airbag ring and the first airbag ring, and the sealing assembly also includes a sleeve ring, the sleeve ring is used to be sleeved on the second airbag ring, and a sealing ring is provided on the sleeve ring.

2. An explosion-proof positive pressure ventilation and air conditioning unit according to claim 1, characterized in that: The mixed air power section is respectively provided with a fresh air inlet and a return air inlet, and an explosion-proof fan and a flow equalizing plate are sequentially arranged in the mixed air power section along the air supply direction, a primary efficiency filter and a surface cooler are sequentially arranged in the primary cooling section along the air supply direction, an empty box section and a heating coil are sequentially arranged in the heating section along the air supply direction, a steam humidifier and an ultraviolet lamp are sequentially arranged in the humidification and disinfection section along the air supply direction, a medium efficiency filter and an air outlet section are sequentially arranged in the medium efficiency air outlet section along the air supply direction, and an air supply outlet is opened on the medium efficiency air outlet section.

3. The explosion-proof positive pressure ventilation and air conditioning unit according to claim 1, characterized in that: The mixed air power section, primary cooling section, heating section, humidification and disinfection section and medium-efficiency air outlet section are all provided with inspection doors.

4. The explosion-proof positive pressure ventilation and air conditioning unit according to claim 1, characterized in that: There are several connection components between each section, and they are distributed divergently.

5. The explosion-proof positive pressure ventilation and air conditioning unit according to claim 1, characterized in that: There are two pressing frames on each mounting seat, which are symmetrically distributed and have a bent shape.

6. The explosion-proof positive pressure ventilation and air conditioning unit according to claim 1, characterized in that: The docking frame, the pressure ring, the first airbag ring, the second airbag ring, the sleeve ring and the sealing ring are all square ring-shaped, the inner ring of the sleeve ring is in the shape of a quadrangular pyramid, and the larger opening of the inner ring faces outwards.

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