CN219829028U - Hospital fresh air system based on demand control ventilation - Google Patents

Hospital fresh air system based on demand control ventilation Download PDF

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Publication number
CN219829028U
CN219829028U CN202321023937.1U CN202321023937U CN219829028U CN 219829028 U CN219829028 U CN 219829028U CN 202321023937 U CN202321023937 U CN 202321023937U CN 219829028 U CN219829028 U CN 219829028U
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air
assembly
air draft
exhaust
ventilation
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CN202321023937.1U
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于瑛
马娜娜
赵小国
赵泽
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Accommodation For Nursing Or Treatment Tables (AREA)
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Abstract

The utility model discloses a hospital fresh air system based on demand control ventilation, which comprises a control box, wherein the control system of the control box is connected with a motor, the control system of the control box controls the motor to rotate positively and negatively, the motor is connected with a first gear, the first gear is meshed with a second gear, the first gear is connected with a first air draft device, and the second gear is connected with a second air draft device; the first air draft device and the second air draft device are respectively arranged on opposite surfaces of the box body and can be communicated with the outside; the first air draft device and the second air draft device have the same structure. The utility model can extract outdoor and indoor air, reduces the cost of the fresh air system, controls the motor to rotate forward, realizes indoor ventilation, controls the motor to rotate reversely, and can conveniently clean and maintain the fresh air system.

Description

Hospital fresh air system based on demand control ventilation
Technical Field
The utility model relates to the technical field of medical building ventilation, in particular to a hospital fresh air system based on demand control ventilation.
Background
The minimum ventilation times of the hospital building as the class I civil building should not be lower than 0.5 times/h, and mechanical ventilation measures should be adopted if necessary. In order to solve the problem of pollution exceeding, indoor people feel comfortable when the carbon dioxide concentration is lower than 800ppm, and people feel headache and sleepiness even endanger life when the carbon dioxide concentration exceeds 1000 ppm. During the large influenza period, the hospital flow is large, the indoor air quality is seriously reduced, and the CO is greatly reduced 2 The concentration is too high, so the ventilation is controlled according to the comfortable health requirement of indoor personnel, the medical personnel and patients are maximally protected, a fresh air system is needed to ventilate air in a hospital, but the existing fresh air system can ventilate the air in the hospital only by simultaneously working two fans of a blower and an exhaust fan, so that the use cost of the fresh air system is higher, after the fresh air system is used for a period of time, a user needs to regularly detach and clean a filter element in the fresh air system, after the filter element is cleaned, the cleaned filter element is reinstalled in the fresh air system, the operation is complex, and the fresh air system is usedThe fresh air system is inconvenient to maintain, and therefore a hospital fresh air system for controlling ventilation based on requirements is needed to solve the problems.
Disclosure of Invention
In order to solve the problems of high use cost of the existing fresh air system and inconvenient operation during cleaning of the fresh air system at regular intervals, the utility model provides the hospital fresh air system based on demand control ventilation, and the advantages of convenience in maintenance and low use cost of the fresh air system are realized.
The utility model provides a hospital fresh air system based on demand control ventilation, includes the control box, and the control system of control box is connected with the motor, the control system control motor of control box corotation and reversal, and the motor is connected with first gear, and first gear meshes with the second gear, and first gear is connected with first updraft ventilator, and the second gear is connected with second updraft ventilator; the first air draft device and the second air draft device are respectively arranged on opposite surfaces of the control box;
the first air suction device comprises an air suction assembly, a first gear is connected with the air suction assembly, the air suction assembly is connected with an air suction cavity, the air suction assembly comprises fan blades, the fan blades are arranged in the cavity of the air suction cavity, the air suction cavity penetrates through the control box to be communicated with the outside, and at one end of the air suction cavity connected with the air suction assembly, the air suction cavity is also communicated with the outside through an air inlet assembly and an air exhaust assembly;
the second air draft device and the first air draft device are identical in structure.
And a carbon dioxide sensor is arranged on the indoor outer surface of the control box, and the carbon dioxide sensor is connected with a control system of the control box.
The exhaust assembly comprises a rotating rod, one end of the rotating rod is connected with the first gear, the other end of the rotating rod is connected with the fan blade, and a bearing is arranged at the joint of the rotating rod and the exhaust cavity.
The disinfection lamp and the filter element are arranged in the air draft cavity, the filter element is arranged at the pipe orifice of the air draft cavity, and the disinfection lamp is clamped in the air draft cavity and is close to the filter element.
The air inlet assembly comprises an air inlet pipe, one end of the air inlet pipe is communicated with the air suction cavity, and the other end of the air inlet pipe penetrates through the control box to be communicated with the outside; when the motor is reversely transmitted, the inlet end in the air inlet pipe is clamped with the first dust screen, and the outlet end in the air inlet pipe is clamped with the first one-way valve.
The air inlet pipe is a round pipe and is made of copper.
The exhaust assembly comprises an exhaust pipe, one end of the exhaust pipe is communicated with the exhaust cavity, and the other end of the exhaust pipe penetrates through the control box to be communicated with the outside; when the motor is transmitting, the inlet end in the exhaust pipe is clamped with the second dust screen, and the outlet end in the exhaust pipe is clamped with the second one-way valve.
The exhaust pipe is a square pipe and is made of copper.
A heat recovery component is arranged between the exhaust component of the first exhaust device and the exhaust component of the second exhaust device;
the heat recovery assembly comprises two groups of heat exchange assemblies, the two groups of heat exchange assemblies are respectively clamped on the exhaust assembly of the first exhaust device and the exhaust assembly of the second exhaust device, a heat conducting plate is arranged between the two heat exchange assemblies, the heat conducting plate is connected with a heat conducting rod, and the heat conducting rod is clamped in the control box.
The motor is fixed in the control box by a fixing plate.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a hospital fresh air system for controlling ventilation based on requirements, which is characterized in that a motor, a first gear and a second gear are arranged to drive two groups of air draft devices to rotate simultaneously, so that outdoor and indoor air can be extracted, the cost of the fresh air system is reduced, a control box positively rotates by controlling the motor, indoor air is extracted to the outside through an exhaust assembly, and then outdoor fresh air is extracted to the inside through another exhaust assembly; the motor is controlled to rotate reversely, the air draft assembly can blow off dust, a user can clean the dust without disassembling the dust, and the fresh air system can be conveniently maintained.
Further, a carbon dioxide sensor is also arranged, and when the concentration of the carbon dioxide in the room is detected to be higher than a threshold value, the control box can drive the motor to rotate so as to realize ventilation in the room; the sterilization lamp is arranged to sterilize the air suction cavity, so that bacteria are not easy to breed in the air suction cavity; the filter element is arranged to block dust in the air entering the air draft cavity; still set up the heat recovery subassembly, the heat recovery subassembly is established outside two exhaust components, and the material of blast pipe is copper, and the heat in the blast pipe air can be conducted the heat recovery subassembly, and the heat recovery subassembly can be with heat conduction to external equipment in and then carry out recycle to the heat.
Drawings
For a clearer description of the technical solutions of the embodiments of the present utility model, the following briefly describes the drawings that are required to be used in the embodiments:
FIG. 1 is a schematic diagram of a hospital fresh air system for controlling ventilation based on demand according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a top view perspective of a hospital fresh air system for demand-controlled ventilation in accordance with the present utility model;
FIG. 3 is a schematic view of a cross-sectional view of a bottom perspective view of a hospital fresh air system for controlling ventilation based on demand according to the present utility model;
in the figure: 1. a control box; 2. a drive assembly; 21. a motor; 22. a fixing plate; 23. a first gear; 24. a second gear; 3. an air draft assembly; 31. a rotating lever; 32. a fan blade; 33. a bearing; 4. an air draft cavity; 41. a sterilizing lamp; 42. a filter element; 5. an air intake assembly; 51. an air inlet pipe; 52. a first one-way valve; 53. a first dust screen; 6. a heat recovery assembly; 61. a heat exchange assembly; 62. a heat conductive plate; 63. a heat conduction rod; 7. an exhaust assembly; 71. an exhaust pipe; 72. a second one-way valve; 73. a second dust screen; 8. a carbon dioxide sensor; 9. a first air extraction device; 10. and the second air draft device.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.
Referring to fig. 1-3, a hospital fresh air system for controlling ventilation based on requirements comprises a control box 1, wherein a control system of the control box 1 is connected with a driving assembly 2 to control the driving assembly 2 to rotate positively and reversely; the driving assembly 2 comprises a motor 21, the motor 21 is connected with a control system of the control box 1, and the motor 21 is fixed in the control box 1 through a fixing plate 22; an output shaft of the motor 21 is connected with a first gear 23, the first gear 23 is meshed with a second gear 24, the first gear 23 is connected with the first air suction device 9, and the second gear 24 is connected with the second air suction device 10; the first air draft device 9 and the second air draft device 10 are respectively arranged on opposite surfaces of the control box 1;
the first air draft device 9 comprises an air draft assembly 3, the first air draft device 9 comprises the air draft assembly 3, a first gear 23 is connected with the air draft assembly 3, the air draft assembly 3 is connected with an air draft cavity 4, the air draft assembly 3 comprises fan blades 32, the fan blades 32 are arranged in a cavity body of the air draft cavity 4, the air draft cavity 4 penetrates through the control box 1 to be communicated with the outside, and at one end, connected with the air draft assembly 3, of the air draft cavity 4 is also communicated with the outside through an air inlet assembly 5 and an air exhaust assembly 7;
the second air extracting device 10 and the first air extracting device 9 are identical in structure.
The exhaust assembly of the first exhaust device 9 and the exhaust assembly of the second exhaust device 10 are provided with the heat recovery assembly 6, the indoor outer surface of the control box 1 is provided with the carbon dioxide sensor 8, the carbon dioxide sensor 8 is connected with the control system of the control box 1, and the carbon dioxide sensor 8 can detect the indoor carbon dioxide concentration by arranging the carbon dioxide sensor 8 during working.
The driving component 2, the air draft component 3, the air draft cavity 4, the air inlet component 5, the air exhaust component 7 and the heat recovery component 6 are all arranged in the control box 1; the suction chamber 4, the air inlet assembly 5 and the exhaust assembly 7 can be communicated with the outside.
The exhaust assembly 3 comprises a rotating rod 31, one end of the rotating rod 31 is connected with a first gear 23, the other end of the rotating rod 31 is connected with a fan blade 32, the fan blade 32 is arranged in the exhaust cavity 4, bearings 33 are arranged at the joint of the rotating rod 31 and the exhaust cavity 4, the first gear 23 and the second gear 24 are arranged, the first gear 23 which rotates positively can drive the second gear 24 to rotate reversely due to the meshing of the first gear 23 and the second gear 24, and the rotating first gear 23 and the rotating second gear 24 can drive the fan blade to extract indoor air and outdoor air respectively through the rotating rod of the first exhaust device 9 and the rotating rod of the second exhaust device 10.
The sterilizing lamp 41 and the filter element 42 are further arranged in the air suction cavity 4, the filter element 42 is arranged at the pipe orifice of the air suction cavity 4, the sterilizing lamp 41 is clamped at the position, close to the filter element 42, in the air suction cavity 4, and the sterilizing lamp 41 can sterilize the air suction cavity 4 by arranging the sterilizing lamp 41, so that bacteria are not easy to breed in the air suction cavity 4; by providing the filter element 42, the filter element 42 can block dust from entering the air in the suction chamber 4.
The air inlet assembly 5 comprises an air inlet pipe 51, one end of the air inlet pipe 51 is communicated with the air suction cavity 4, and the other end of the air inlet pipe 51 penetrates through the control box 1 to be communicated with the outside; when the motor is reversely transmitted, the inlet end in the air inlet pipe 51 is clamped with the first dust screen 53, and the outlet end in the air inlet pipe 51 is clamped with the first one-way valve 52.
The exhaust assembly 7 comprises an exhaust pipe 71, one end of the exhaust pipe 71 is communicated with the exhaust cavity 4, and the other end of the exhaust pipe 71 passes through the control box 1 to be communicated with the outside; when the motor is transmitting, the inlet end in the exhaust pipe 71 is clamped with the second dust screen 73, and the outlet end in the exhaust pipe 71 is clamped with the second one-way valve 72.
The air inlet pipe of the first air draft device 9 and the second air draft device 10 is a round pipe, the air outlet pipe of the first air draft device 9 and the air outlet pipe of the second air draft device 10 are square pipes, and the air inlet pipe and the air outlet pipe are made of copper.
The heat recovery assembly 6 is arranged between the exhaust assemblies of the first air draft device 9 and the second air draft device 10, the heat recovery assembly 6 comprises two heat exchange assemblies 61, the two heat exchange assemblies 61 are respectively clamped on the exhaust assemblies of the first air draft device 9 and the second air draft device 10, the two heat exchange assemblies 61 are respectively connected with two ends of the heat conducting plate 62, the heat conducting plate 62 is connected with the heat conducting rod 63, and the heat conducting rod 63 is clamped in the control box 1.
When the motor 21 rotates positively, the first check valves of the first air suction device 9 and the second air suction device 10 are closed, the second check valve is opened, and air extracted by the fan blades can be discharged through the exhaust pipe; the motor 21 is controlled to rotate reversely, the first check valves of the first air suction device 9 and the second air suction device 10 are opened, the second check valve is closed, and the rotating fan blades can blow off dust outside the filter element.
The application method of the hospital fresh air system based on demand control ventilation comprises the following steps:
when the carbon dioxide sensor 8 detects that the concentration of the indoor carbon dioxide is higher than a threshold value, the control box 1 controls the motor 21 to rotate positively, the motor 21 rotating positively drives the first gear 23 to rotate, the first gear 23 rotating drives the second gear 24 to rotate, the first gear 23 rotating and the second gear 24 rotating drive the fan blades through rotating rods of the first air suction device 9 and the second air suction device 10, the first check valves of the first air suction device 9 and the second air suction device 10 are closed, the second check valves of the first air suction device 9 and the second air suction device 10 are opened, the rotating fan blades extract indoor and outdoor gases, the indoor extracted gases are discharged to the outside through one exhaust pipe, and the outdoor extracted gases are conveyed to the indoor through the other exhaust pipe; when the filter core of the first air extracting device 9 and the second air extracting device 10 needs to be cleaned, the motor 21 is controlled to rotate reversely, the first check valves of the first air extracting device 9 and the second air extracting device 10 are opened, the second check valves of the first air extracting device 9 and the second air extracting device 10 are closed, dust outside the filter core of the first air extracting device 9 and the second air extracting device 10 can be blown off under the action of the rotating fan blades, meanwhile, heat in air in the exhaust pipe can be conducted into the heat recovery assembly 6, and the heat recovery assembly 6 can conduct heat into external equipment.
The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, one skilled in the art may make modifications and equivalents to the specific embodiments of the present utility model, and any modifications and equivalents not departing from the spirit and scope of the present utility model are within the scope of the claims of the present utility model.

Claims (10)

1. The hospital fresh air system based on demand control ventilation is characterized by comprising a control box (1), wherein a control system of the control box (1) is connected with a motor (21), the control system of the control box (1) controls the motor (21) to rotate positively and reversely, the motor (21) is connected with a first gear (23), the first gear (23) is meshed with a second gear (24), the first gear (23) is connected with a first air draft device (9), and the second gear (24) is connected with a second air draft device (10); the first air draft device (9) and the second air draft device (10) are respectively arranged on opposite surfaces of the control box (1);
the first air draft device (9) comprises an air draft assembly (3), a first gear (23) is connected with the air draft assembly (3), the air draft assembly (3) is connected with an air draft cavity (4), the air draft assembly (3) comprises fan blades (32), the fan blades (32) are arranged in a cavity of the air draft cavity (4), the air draft cavity (4) penetrates through a control box (1) to be communicated with the outside, and at one end, connected with the air draft assembly (3), of the air draft cavity (4), the air draft cavity (4) is also communicated with the outside through an air inlet assembly (5) and an air exhaust assembly (7);
the second air draft device (10) and the first air draft device (9) have the same structure.
2. The hospital fresh air system for controlling ventilation based on requirements according to claim 1, wherein a carbon dioxide sensor (8) is arranged on the indoor outer surface of the control box (1), and the carbon dioxide sensor (8) is connected with the control system of the control box (1).
3. The hospital fresh air system based on demand control ventilation according to claim 1, wherein the ventilation assembly (3) comprises a rotating rod (31), one end of the rotating rod (31) is connected with the first gear (23), the other end of the rotating rod (31) is connected with a fan blade (32), and a bearing (33) is arranged at the joint of the rotating rod (31) and the ventilation cavity (4).
4. The hospital fresh air system based on demand control ventilation according to claim 1, wherein a sterilizing lamp (41) and a filter element (42) are arranged in the ventilation cavity (4), the filter element (42) is arranged at a pipe orifice of the ventilation cavity (4), and the sterilizing lamp (41) is clamped at a position, close to the filter element (42), in the ventilation cavity (4).
5. The hospital fresh air system for controlling ventilation based on requirements according to claim 1, wherein the air inlet assembly (5) comprises an air inlet pipe (51), one end of the air inlet pipe (51) is communicated with the air suction cavity (4), and the other end of the air inlet pipe (51) passes through the control box (1) to be communicated with the outside; when the motor is reversely transmitted, the inlet end in the air inlet pipe (51) is clamped with the first dust screen (53), and the outlet end in the air inlet pipe (51) is clamped with the first one-way valve (52).
6. The hospital fresh air system based on demand control ventilation according to claim 5, wherein the air inlet pipe (51) is a circular pipe and is made of copper.
7. A hospital fresh air system for controlling ventilation based on requirements according to claim 1, characterized in that the exhaust assembly (7) comprises an exhaust pipe (71), one end of the exhaust pipe (71) is communicated with the air suction cavity (4), and the other end of the exhaust pipe (71) passes through the control box (1) to be communicated with the outside; when the motor is in forward transmission, the inlet end in the exhaust pipe (71) is clamped with the second dust screen (73), and the outlet end in the exhaust pipe (71) is clamped with the second one-way valve (72).
8. The hospital fresh air system based on demand control ventilation according to claim 7, wherein the exhaust pipe (71) is square pipe and is made of copper.
9. A hospital fresh air system for controlling ventilation based on demand according to claim 1, characterized in that a heat recovery assembly (6) is arranged between the exhaust assembly of the first suction device (9) and the exhaust assembly of the second suction device (10);
the heat recovery assembly (6) comprises two groups of heat exchange assemblies (61), the two groups of heat exchange assemblies (61) are respectively clamped on the exhaust assembly of the first exhaust device (9) and the exhaust assembly of the second exhaust device (10), a heat conducting plate (62) is arranged between the two heat exchange assemblies (61), the heat conducting plate (62) is connected with a heat conducting rod (63), and the heat conducting rod (63) is clamped in the control box (1).
10. A hospital fresh air system for controlling ventilation based on demand according to claim 1, characterized in that the motor (21) is fixed in the control box (1) by a fixing plate (22).
CN202321023937.1U 2023-04-28 2023-04-28 Hospital fresh air system based on demand control ventilation Active CN219829028U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321023937.1U CN219829028U (en) 2023-04-28 2023-04-28 Hospital fresh air system based on demand control ventilation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321023937.1U CN219829028U (en) 2023-04-28 2023-04-28 Hospital fresh air system based on demand control ventilation

Publications (1)

Publication Number Publication Date
CN219829028U true CN219829028U (en) 2023-10-13

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ID=88272774

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321023937.1U Active CN219829028U (en) 2023-04-28 2023-04-28 Hospital fresh air system based on demand control ventilation

Country Status (1)

Country Link
CN (1) CN219829028U (en)

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