CN215065117U

CN215065117U - Building room air tightness test instrument

Info

Publication number: CN215065117U
Application number: CN202120948136.0U
Authority: CN
Inventors: 李晓凯; 查良梁; 黄欣; 郑劲远; 杨晓诚; 赵益; 丁至诚; 杨键
Original assignee: Sinohydro Bureau 5 Co Ltd
Current assignee: Sinohydro Bureau 5 Co Ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-12-07
Anticipated expiration: 2031-05-06

Abstract

The utility model discloses a testing instrument for air tightness of a building room, which comprises a bottom plate arranged outside the building room, wherein a vertical plate is arranged on the bottom plate, a first mounting platform is arranged on the vertical plate, and a voltage transformation assembly stretching into the building room is arranged on the first mounting platform; the sealing film is provided with three circular openings from top to bottom in sequence, and the inner sides of the openings are sealed by metal ring bodies with U-shaped cross sections clamped on the sealing film; the outer part of the tail end of the air pipe is sleeved with a rubber sealing ring, threaded holes matched with each other are formed in the rubber sealing ring and the outer metal ring body, and the rubber sealing ring and the metal ring body are sealed through the threaded holes and fastening bolts; the sealing performance of the opening can be effectively improved, and the accuracy of a test result can be effectively improved; through the cooperation between first fan and the second fan, can realize the quick pressure boost to the room is inside.

Description

Building room air tightness test instrument

Technical Field

The utility model relates to a passive form house detects technical field, especially relates to a building room gas tightness ability's test instrument.

Background

The concept of passive housing was first derived from the first discussion by professor Bo Adamson at university of longde, sweden and by doctor wolfgarg Feist, the institute of passive housing, germany, in 5 months of 1988. The concept of passive housing was gradually established through a series of studies and subsidies of the state of Heison, Germany. Passive energy-saving houses do not require active heating and basically rely on passively collected heat to maintain a comfortable temperature in the house itself. The heat energy from the sun, human body, household electrical appliances, heat recovery devices, etc. is used, and the supply of an active heat source is not required.

For the heat preservation requirement of the passive house, the most important technical requirement is the air tightness of the passive house, the air tightness of rooms of the building is improved, the building energy consumption loss caused by air and cold air permeation can be greatly reduced, and the method has important significance for reducing the building energy consumption.

The existing air tightness detection principle is that air tightness of a room is generally calculated by comparing air pressure inside and outside the room to be detected, the room is manually pressurized or depressurized during testing to form air pressure difference inside and outside the room, air movement is generated, then a flow meter is used to obtain flow, and air quantity flowing out of the room through holes with different sizes is further calculated, so that air tightness in the room is evaluated. However, when the existing detection device is used for testing the air tightness of a room, the problem that when a test instrument needs to penetrate through a wall body and extend into the room in the installation process, a gap exists between a pressurizing pipeline and an installation hole, the air tightness of the room is not easily guaranteed, and the accuracy of air tightness testing is reduced is easily solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a building room gas tightness ability's test instrument, appear easily among the current passive form house gas tightness ability testing process because there is the clearance and leads to gas tightness ability to receive the influence between booster line and the installation hole, reduce the problem of detection accuracy.

In order to solve the technical problem, the utility model provides a building room air tightness testing instrument, which comprises a bottom plate arranged outside a building room, wherein the bottom plate is provided with an acquisition processor used for calculating air tightness data, the bottom plate is provided with a vertical plate, two first mounting platforms are vertically arranged on the outer side surface of the vertical plate, and the first mounting platforms are provided with a voltage transformation assembly which penetrates through the vertical plate and extends into the building room through an air pipe; the sealing film is provided with three circular openings from top to bottom in sequence, and the inner sides of the openings are sealed by metal ring bodies with U-shaped cross sections clamped on the sealing film; the outer part of the tail end of the air pipe is sleeved with a rubber sealing ring, threaded holes matched with each other are formed in the rubber sealing ring and the outer metal ring body, and the rubber sealing ring and the metal ring body are sealed through the threaded holes and fastening bolts; and a second mounting platform is arranged on the inner side surface of the vertical plate, a pressure difference meter is arranged on the second mounting platform, and the pressure difference meter is respectively connected with a first pressure sensor positioned indoors and a second pressure sensor positioned outdoors.

In particular, the variable pressure component is a first fan and a second fan.

In particular, the length and width of the closing membrane are both greater than the length and width of the access opening.

In particular, the rubber sealing ring faces the metal ring body.

Particularly, the second mounting platform and the vertical plate, the first mounting platform and the vertical plate, and the vertical plate and the bottom plate are detachably connected through a mounting base and a bolt.

Compared with the prior art, the beneficial effects of the utility model are that: the metal ring body and the rubber sealing ring are used for sealing the openings of the pressurizing pipeline and the first pressure sensor, which enter the sealed touch position, so that the sealing performance of the openings of the pipeline extending part in the prior art can be effectively improved, and the accuracy of the air tightness test result is effectively improved; through the cooperation between the vary voltage subassembly on the first mounting platform promptly first fan and the second fan, can realize the quick pressure boost to the room inside.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure of the present invention.

FIG. 3 is a cross-sectional view of the connection of the metal ring, the rubber seal ring and the sealing die.

Wherein, the bottom plate-1; a vertical plate-2; a first mounting platform-3; an air duct-4; a first fan-41; a second fan-42; a sealing film-5; an opening-51; a metal ring-52; a rubber sealing ring-6; a second mounting platform-7; differential pressure gauge-71; a first pressure sensor-72; a second pressure sensor-73.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the utility model relates to a testing instrument for air tightness of building room, a bottom plate 1 is arranged outside a door body of the building room, an acquisition processor for calculating air tightness data is arranged on the bottom plate 1, a vertical plate 2 is arranged on the bottom plate 1, two first mounting platforms 3 are vertically arranged on the outer side surface of the vertical plate 2, and a voltage transformation assembly which penetrates through the vertical plate 2 and extends into the building room through an air pipe 4 is arranged on each of the two first mounting platforms 3; the house is characterized by further comprising a sealing film 5 arranged outside the house body outlet, wherein three circular openings 51 are sequentially formed in the sealing film 5 from top to bottom, and the inner sides of the openings 51 are sealed by metal ring bodies 52 which are clamped on the sealing film 5 and have U-shaped cross sections; the rubber sealing ring 6 is sleeved outside the tail end of the air pipe 4, threaded holes matched with each other are formed in the rubber sealing ring 6 and the outer metal ring body 52, and the rubber sealing ring 6 and the metal ring body 52 are sealed through the threaded holes and fastening bolts; a second mounting platform 7 is arranged on the inner side surface of the vertical plate 2, a pressure difference meter 71 is arranged on the second mounting platform 7, and the pressure difference meter 71 is respectively connected with a first pressure sensor 72 positioned indoors and a second pressure sensor 73 positioned outdoors.

In a preferred embodiment, the pressure-changing components are a first fan 41 and a second fan 42. The first fan 71 and the second fan 72 are arranged to input pressure into a building room quickly, so that the testing time is reduced; the mounting positions of the first fan 41 and the second fan 42 can be stabilized by the upright plate 2 and the mounting platform, and the deviation can be prevented.

As a preferred embodiment, the length and width of the sealing film 5 are both greater than the length and width of the building room door body; the sealing film 5 is arranged on the outer side of a room door body of a building, enough installation positions need to be reserved outside a frame of the room door body of the building, and the sealing film 5 and the frame of the room door body of the building need to be completely sealed and bonded through special adhesive during installation, so that air leakage is prevented.

As a preferred embodiment, an auxiliary adhesive layer is arranged on one side of the rubber sealing ring 6 facing the metal ring body 52, and the rubber sealing ring 6 is initially fixed through the auxiliary adhesive layer after being aligned with the threaded hole of the metal ring body 52, so as to facilitate subsequent installation and fastening of fastening bolts.

As a preferred embodiment, the second mounting platform 7 is detachably connected with the vertical plate 2, the first mounting platform 3 is detachably connected with the vertical plate 2, and the vertical plate 2 is detachably connected with the bottom plate 1 through a mounting base and a bolt; through the purpose that riser 2, bottom plate 1, first mounting platform 3 and the quick dismantlement of quick installation of detachable connection realization device, be convenient for transport and remove in different stations reduce the activity duration.

As shown in fig. 2 and fig. 3, the working principle of the present invention is: when the air tightness performance of a building room needs to be measured, a door of the building room is opened, a testing instrument faces an entrance, a sealing film 5 is adhered to the outer side of the entrance, the length and the width of the sealing film 5 are both larger than those of the entrance, the sealing film 5 is installed in a sufficient size to effectively seal the entrance, a first fan 41 and a second fan 42 are inserted into a circular opening 51 in the sealing film 5 through the tail end of an air pipe 4, and a rubber sealing ring 6 is tightly connected with a metal ring body 52 through a fastening bolt, so that the purposes of enhancing the sealing performance and preventing leakage are achieved; after the first pressure sensor 72 in the room is mounted in the same manner, the second pressure sensor 73 outside the room is connected to the differential pressure gauge 71. During testing, the first fan 41 and the second fan 42 (model X-CZR/CZT) are started, wind is input into a building room through the air pipe 4, a certain pressure difference value between the indoor and the outdoor is guaranteed, outdoor and indoor pressures can be measured under the action of the first pressure sensor 72 and the second pressure sensor 73 respectively, the indoor and outdoor pressure difference of the building room is obtained through the pressure difference meter 71, the collection processor can collect the indoor and outdoor pressure difference value, the collected indoor and outdoor pressure difference value data is calculated, and therefore the air tightness of the room is evaluated.

The utility model discloses "connect", "fixed" that appear in the description can be fixed connection, machine-shaping, welding, also can mechanical connection, and particular case understands that above-mentioned term is in the utility model provides a concrete meaning.

In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used, and their designated orientations or positional relationships are only for convenience of description and simplicity of description, but do not indicate or imply that the designated device or element must have a particular orientation, and therefore should not be construed as limiting the present invention.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A kind of test instrument of the air-tight performance of the room of the building, characterized by that: a bottom plate (1) is arranged on the outer side of a room door body of the building, an acquisition processor used for calculating airtight data is arranged on the bottom plate (1), a vertical plate (2) is arranged on the bottom plate (1), two first mounting platforms (3) are vertically arranged on the outer side surface of the vertical plate (2), and a voltage transformation assembly which penetrates through the vertical plate (2) and extends into the building room body through an air pipe (4) is arranged on each of the two first mounting platforms (3); the house is characterized by further comprising a sealing film (5) arranged outside the house body outlet, wherein three circular openings (51) are sequentially formed in the sealing film (5) from top to bottom, and the inner sides of the openings (51) are sealed by metal ring bodies (52) which are clamped on the sealing film (5) and have U-shaped cross sections; the rubber sealing ring (6) is sleeved outside the tail end of the air pipe (4), threaded holes matched with each other are formed in the rubber sealing ring (6) and the outer metal ring body (52), and the rubber sealing ring (6) and the metal ring body (52) are sealed through the threaded holes and fastening bolts; the inner side face of the vertical plate (2) is provided with a second mounting platform (7), the second mounting platform (7) is provided with a pressure difference meter (71), and the pressure difference meter (71) is respectively connected with a first pressure sensor (72) located indoors and a second pressure sensor (73) located outdoors.

2. The apparatus for testing the air tightness of a building room as claimed in claim 1, wherein said pressure-varying assembly is a first blower (41) and a second blower (42).

3. A test instrument for the air-tight performance of a room in a building as claimed in claim 1, wherein the length and width of the sealing film (5) are greater than those of the door body of the room in the building.

4. A test instrument for the air-tightness of a room in a building as claimed in claim 1, wherein the rubber sealing ring (6) is provided with an auxiliary adhesive layer on the side facing the metal ring body (52).

5. The building room air tightness test instrument according to claim 1, wherein the second mounting platform (7) is detachably connected with the vertical plate (2), the first mounting platform is detachably connected with the vertical plate (2), and the vertical plate (2) is detachably connected with the bottom plate (1) through a mounting base and a bolt.