CN214010715U

CN214010715U - Building model indoor natural ventilation testing arrangement

Info

Publication number: CN214010715U
Application number: CN202023265409.6U
Authority: CN
Inventors: 杜金阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-08-20
Anticipated expiration: 2030-12-30

Abstract

The utility model provides an indoor natural ventilation testing device for a building model, which comprises a building model and a fan frame; the two sides of the building model are fixedly connected with windows, and the inner sides of the windows are fixedly connected with window frames through screws and foaming agents; the number of the window frames is set to be two groups; the bottom of the inner side of the window frame is fixedly provided with an air inlet detector through clamping; an indoor detector is arranged on the ground inside the building model; an air outlet detector is fixedly arranged on the right window of the building model through clamping; the air inlet detector is connected with the indoor detector and the air outlet detector through leads; the small fan is arranged in the fan frame through key connection; the setting of PM2.5 detector, through small-size fan to indoor blast air simulation natural draft, can show the PM2.5 content that the ventilation in-process outside air carried, can directly perceivedly demonstrate the probability that current indoor ventilation arouses respiratory disease, improved the device practicality.

Description

Building model indoor natural ventilation testing arrangement

Technical Field

The utility model belongs to the technical field of the building engineering test, more specifically say, in particular to indoor natural draft testing arrangement of architectural model.

Background

Natural ventilation refers to a mode of ventilating and transporting gas to areas such as indoor areas, mines or roadways by utilizing natural wind pressure, air temperature difference, air density difference and the like. Natural ventilation is the hot pressing caused by the wind pressure caused by outdoor wind and the temperature difference between indoor and outdoor air, which promotes the air flow and makes the indoor and outdoor air exchange of the building. The building interior ventilation detection mainly detects the ventilation efficiency and the air age of different positions in the building.

Through retrieving for example, patent No. CN209910942U discloses an indoor natural draft testing arrangement of building model, including the building model, the left side and the right side of building model all are equipped with the ventilation window, the inside of building model is equipped with the three-layer support board, the front side and the rear side of backup pad fixedly connected with support column respectively, the upside of backup pad is equipped with humidity transducer and air velocity transducer, the left side of building model is equipped with the support frame, the downside of support frame is equipped with the fan, the utility model discloses the inside of building model is equipped with the three-layer support board, and the front side and the rear side of backup pad fixedly connected with support column respectively, and the upside of backup pad is equipped with humidity transducer and air velocity transducer, and humidity transducer and air velocity transducer can collect the data of humidity and wind speed respectively, and humidity transducer and air velocity transducer in the backup pad of different heights can play and refer to wind speed, The relationship between humidity and altitude makes the resulting data more accurate.

Based on the aforesaid, the indoor natural draft testing arrangement of present common building model mainly is the air blower structure, generally does not set up the structure that detects air PM2.5 when simulating building natural draft, generally detects indoor wind speed wind direction through mechanical type anemorumbometer, and mechanical type anemorumbometer can receive the humiture influence usually, and measurement numerical value is accurate inadequately, generally does not set up the function of being convenient for measure indoor formaldehyde content.

Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a building model indoor natural ventilation testing device is provided to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an indoor natural draft testing arrangement of building model to solve the indoor natural draft testing arrangement of present common building model who proposes in the above-mentioned background art and mainly be the air-blower structure, detect air PM 2.5's structure when generally not setting up simulation building natural draft, generally detect indoor anemorumbometer through mechanical type anemorumbometer, mechanical type anemorumbometer can receive the humiture influence usually, it is accurate inadequately to measure numerical value, generally not set up the problem of the function of being convenient for measure indoor formaldehyde content.

The utility model relates to an indoor natural draft testing arrangement of architectural model's purpose and efficiency are reached by following concrete technological means:

a building model indoor natural ventilation testing device comprises a building model and a fan frame; the two sides of the building model are fixedly connected with windows, and the inner sides of the windows are fixedly connected with window frames through screws and foaming agents; the number of the window frames is set to be two groups; the bottom of the inner side of the window frame is fixedly provided with an air inlet detector through clamping; an indoor detector is arranged on the ground inside the building model; an air outlet detector is fixedly arranged on the right window of the building model through clamping; the air inlet detector is connected with the indoor detector and the air outlet detector through leads; the small fan is arranged in the fan frame through key connection; the number of the small fans is set to be sixteen groups; the bottom of the fan frame is fixedly connected with a telescopic sliding rod.

Further, the air inlet detector also comprises a wire interface, a fixed block A and a fixed block B; the curved side surface of the air inlet detector is fixedly connected with a wire interface; the bottom of the air inlet detector is fixedly connected with a fixed block A through welding; the bottom of the air inlet detector is fixedly connected with a fixed block B through welding.

Furthermore, the air inlet detector also comprises a clamping rotating rod and a shading cover plate; the inner side of the fixed block B is provided with a tightening rotating rod through thread connection; the top of the air inlet detector is fixedly connected with a shading cover plate through welding.

Further, the top of the air inlet detector is provided with an ultrasonic wind speed and direction sensor through a bolt; the side surface of the ultrasonic wind speed and direction sensor is provided with a temperature and humidity sensor through a bolt connection.

Furthermore, a tripod is further mounted at the bottom of the indoor detector through threaded connection; the side surface of the indoor detector is provided with a control part through bolt connection; the curved side surface of the tripod is provided with a threaded pipe through threaded connection; the side surface of the threaded pipe is fixedly connected with a formaldehyde detector.

Further, a PM2.5 detector is arranged on the side surface of the indoor detector through a bolt; the formaldehyde detector is connected with the control part through a lead.

Compared with the prior art, the utility model discloses following beneficial effect has:

the formaldehyde detector is arranged, the content of formaldehyde in the building can be detected through the formaldehyde detector, and the numerical value is displayed through the display screen on the control part, so that the harm to the health of personnel in the building caused by the excessive formaldehyde is prevented; the PM2.5 detector is arranged, air is blown into the room through the small fan, the content of PM2.5 carried by outside air in the ventilation process can be displayed, the probability of respiratory diseases caused by current indoor ventilation can be visually displayed, and the practicability of the device is improved.

The ultrasonic wind speed and direction sensor is arranged, and the wind speed and direction are measured by an ultrasonic time difference method. The speed of sound propagation in the air will be superimposed with the velocity of the air flow in the wind direction. If the propagation direction of the ultrasonic wave is the same as the wind direction, the speed of the ultrasonic wave is increased; conversely, if the propagation direction of the ultrasonic wave is opposite to the wind direction, its speed becomes slow. Therefore, under fixed detection conditions, the speed of the ultrasonic wave propagating in the air can correspond to the wind speed function. And the accurate wind speed and wind direction can be obtained through calculation. Since the speed of sound waves is greatly affected by temperature when the sound waves propagate in air; the wind speed sensor detects two opposite directions on the two channels, so that the temperature has a negligible effect on the sound velocity. The ultrasonic anemometer has the characteristics of light weight, no moving parts, firmness and durability, does not need maintenance and field calibration, and can output the wind speed and the wind direction simultaneously.

Drawings

Fig. 1 is a schematic front structural view of the present invention.

Fig. 2 is a partially enlarged schematic view of a in fig. 1.

Fig. 3 is a schematic perspective view of the air inlet detector of the present invention.

Fig. 4 is a schematic view of the three-dimensional structure of the formaldehyde detector of the present invention.

Fig. 5 is a schematic front structural view of the small fan of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a building model; 101. a window frame; 2. an air inlet detector; 201. a wire interface; 202. a fixed block A; 203. a fixed block B; 204. tightening the rotating rod; 205. a light-shielding cover plate; 3. an ultrasonic wind speed and direction sensor; 4. a temperature and humidity sensor; 5. an indoor detector; 501. a tripod; 6. a control unit; 7. a formaldehyde detector; 701. a threaded pipe; 8. a PM2.5 detector; 9. an air outlet detector; 10. a fan frame; 1001. a small fan; 1002. a sliding rod is telescopic.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 5:

the utility model provides a building model indoor natural ventilation testing device, which comprises a building model 1 and a fan frame 10; two sides of the building model 1 are fixedly connected with windows, and the inner sides of the windows are fixedly connected with window frames 101 through screws and foaming agents; the window frames 101 are arranged in two groups; the bottom of the inner side of the window frame 101 is fixedly provided with an air inlet detector 2 through clamping; an indoor detector 5 is arranged on the ground inside the building model 1; an air outlet detector 9 is fixedly arranged on a right side window of the building model 1 through clamping; the air inlet detector 2 is connected with the indoor detector 5 and the air outlet detector 9 through leads; a small fan 1001 is arranged in the fan frame 10 through key connection; the number of the small fans 1001 is set to sixteen groups; the bottom of the fan frame 10 is fixedly connected with a telescopic slide bar 1002; the air inlet detector 2 also comprises a wire interface 201, a fixed block A202 and a fixed block B203; the curved side surface of the air inlet detector 2 is fixedly connected with a wire interface 201; the bottom of the air inlet detector 2 is fixedly connected with a fixing block A202 through welding; the bottom of the air inlet detector 2 is fixedly connected with a fixed block B203 through welding; the air inlet detector 2 also comprises a clamping rotating rod 204 and a shading cover plate 205; a tightening rotating rod 204 is arranged on the inner side of the fixed block B203 through threaded connection; the top of the air inlet detector 2 is fixedly connected with a shading cover plate 205 through welding; the top of the air inlet detector 2 is provided with an ultrasonic wind speed and direction sensor 3 through a bolt; the side surface of the ultrasonic wind speed and direction sensor 3 is provided with a temperature and humidity sensor 4 through bolt connection.

The portable TVOC formaldehyde detector (with the model of AKBT-TVOC), the ultrasonic wind speed and direction sensor (with the model of YQ5502), the PM2.5 detector (with the model of PC-3A) and the temperature and humidity sensor (with the model of JCJ200W) can be obtained through private customization or market purchase.

Wherein, the bottom of the indoor detector 5 is also provided with a tripod 501 through thread connection; the side surface of the indoor detector 5 is provided with a control part 6 through bolt connection; the curved side surface of the tripod 501 is provided with a threaded pipe 701 through threaded connection; the side of the threaded pipe 701 is fixedly connected with a formaldehyde detector 7. The formaldehyde detector 7 adopts a diffusion type and advanced circuit design and filtering technology to ensure the high precision of products, the formaldehyde detector 7 can detect the content of formaldehyde in the building, and the display screen on the control part 6 displays numerical values to prevent the formaldehyde from exceeding the standard and causing harm to the health of people in the building.

Wherein, the PM2.5 detector 8 is arranged on the side surface of the indoor detector 5 through bolt connection; the formaldehyde detector 7 is connected to the control unit 6 through a wire. The PM2.5 detector 8 can generate light scattering when irradiating the particulate matters at the detection position through an infrared light source, the scattering intensity in the direction perpendicular to the light path is related to the particle diameter, the quantity concentration of the particulate matters can be obtained in real time through counting, the mass concentration unified with an official unit is obtained according to an empirical conversion formula and a calibration method, and the PM2.5 content in the building is obtained.

The specific use mode and function of the embodiment are as follows:

in the utility model, when in use, the air inlet detector 2 is fixed on the left window frame 101 of the building model 1 through the bottom tightening rotating rod 204, the bottom of the air inlet detector 2 is placed on the top of the window frame 101, the inner side surface of the fixed block A202 is attached to the side surface of the window frame 101, the hand wheel at the end of the tightening rotating rod 204 is rotated to firmly fix the air inlet detector 2 on the window frame 101, the air outlet detector 9 is installed on the window frame 101 of the right window according to the method, the indoor detector 5 is placed inside the building model 1 through the tripod 501, adjust indoor detector 5 to suitable height through tripod 501, be connected income wind gap detector 2 with indoor detector 5 and air outlet detector 9 through the wire, place in the left window of architectural model 1 after fixing suitable height with fan frame 10 through flexible slide bar 1002, start the fan with small-size fan 1001 subtend window and simulate natural draft and detect.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides an indoor natural draft testing arrangement of architectural model which characterized in that includes: a building model (1) and a fan frame (10); two sides of the building model (1) are fixedly connected with windows, and the inner sides of the windows are fixedly connected with window frames (101) through screws and foaming agents; the number of the window frames (101) is set to two groups; the bottom of the inner side of the window frame (101) is fixedly provided with an air inlet detector (2) through clamping; an indoor detector (5) is arranged on the ground inside the building model (1); an air outlet detector (9) is fixedly arranged on a right window of the building model (1) through clamping; the air inlet detector (2) is connected with the indoor detector (5) and the air outlet detector (9) through wires; the small fan (1001) is arranged in the fan frame (10) through key connection; the number of the small fans (1001) is set to be sixteen groups; the bottom of the fan frame (10) is fixedly connected with a telescopic sliding rod (1002).

2. The indoor natural ventilation test device of the building model as claimed in claim 1, wherein: the air inlet detector (2) further comprises a wire interface (201), a fixing block A (202) and a fixing block B (203); the curved side surface of the air inlet detector (2) is fixedly connected with a wire interface (201); the bottom of the air inlet detector (2) is fixedly connected with a fixing block A (202) through welding; the bottom of the air inlet detector (2) is fixedly connected with a fixed block B (203) through welding.

3. The indoor natural ventilation test device of the building model as claimed in claim 2, wherein: the air inlet detector (2) also comprises a clamping rotating rod (204) and a shading cover plate (205); the inner side of the fixed block B (203) is provided with a tightening rotating rod (204) through threaded connection; the top of the air inlet detector (2) is fixedly connected with a shading cover plate (205) by welding.

4. The indoor natural ventilation test device of the building model as claimed in claim 3, wherein: the top of the air inlet detector (2) is provided with an ultrasonic wind speed and direction sensor (3) through a bolt; the side surface of the ultrasonic wind speed and direction sensor (3) is provided with a temperature and humidity sensor (4) through bolt connection.

5. The indoor natural ventilation test device of the building model as claimed in claim 1, wherein: the bottom of the indoor detector (5) is also provided with a tripod (501) through thread connection; the side surface of the indoor detector (5) is provided with a control part (6) through bolt connection; the curved side surface of the tripod (501) is provided with a threaded pipe (701) through threaded connection; the side surface of the threaded pipe (701) is fixedly connected with a formaldehyde detector (7).

6. The indoor natural ventilation test device of the building model as claimed in claim 5, wherein: the PM2.5 detector (8) is arranged on the side surface of the indoor detector (5) through bolt connection; the formaldehyde detector (7) is electrically connected with the control part (6) through a lead.