CN211576248U - Special wind quantity and wind pressure measuring sheet for ventilation and air conditioner - Google Patents
Special wind quantity and wind pressure measuring sheet for ventilation and air conditioner Download PDFInfo
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- CN211576248U CN211576248U CN202020290631.2U CN202020290631U CN211576248U CN 211576248 U CN211576248 U CN 211576248U CN 202020290631 U CN202020290631 U CN 202020290631U CN 211576248 U CN211576248 U CN 211576248U
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Abstract
The utility model relates to a survey piece is measured to special amount of wind pressure of ventilation and air conditioner, including surveying the piece body, survey this internal total pressure average pipe that is equipped with of piece, static pressure average pipe and temperature compensation pipe, total pressure average pipe goes up to distribute a plurality of total pressure holes that press, total pressure average pipe's one end shutoff, the other end is connected and is pressed the connecting pipe altogether, run through a plurality of static pressure holes on the static pressure average pipe, the static pressure hole with always press the hole perpendicular and with always press the hole coplane, the one end shutoff of static pressure average pipe, the static pressure connecting pipe is connected to the other end, total pressure connecting pipe and static pressure connecting pipe all with the amount of wind. The utility model has simple and reasonable structure, small occupied space and convenient use, and does not influence the daily maintenance and use of the ventilation and air-conditioning construction acceptance and smoke-proof and exhaust system; the detection process is convenient and quick, and the detection result is accurate and reliable; the detection accuracy can be correspondingly improved by setting temperature compensation according to the requirement; the wind speed and the wind volume can be accurately measured at one time; the method is suitable for measuring air ducts and air ports with different shapes, and has wide application range.
Description
Technical Field
The utility model relates to an amount of wind pressure measures technical field, specifically, relates to ventilate and measure piece with special amount of wind pressure measurement of air conditioner.
Background
In an air purification apparatus such as an air conditioner, a flow rate measurement device is provided to measure a wind speed, a wind pressure, and a wind volume. In the prior art, a wind speed and wind volume measuring device mostly adopts the method that a plurality of pitot tubes are connected to a high-pressure average inner cavity and a low-pressure average inner cavity, an average value is obtained and then is connected with an external micro-differential pressure sensing transmitter through a channel tube, and the average value of the wind speed and the wind volume is calculated. However, this device has the following problems:
1. because each pitot tube can only measure the total pressure value and the static pressure value of one point, a plurality of expensive pitot tube measuring elements are needed to obtain the average values of the whole wind speed, wind pressure and wind volume, and the economic cost is higher; the pitot tubes occupy large space, and the whole measuring device has a complex structure and large volume; the influence of the pipeline structure in the pitot tube on the measured data is large, so that the manufacturing process requirement is strict, and the manufacturing cost is high;
2. the existing device is complex in overall structure, large in occupied space, and very large in manpower and material resource investment in measured data, and is not favorable for ventilation and air conditioner construction acceptance and daily maintenance and use of a smoke prevention and discharge system.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect that prior art exists, the utility model provides a special amount of wind pressure measurement test piece of ventilation and air conditioner, including the test piece body, the test piece body is internal to be equipped with total pressure average pipe, static pressure average pipe and the temperature compensation pipe that are parallel to each other along its windward end to leeward end in proper order, total pressure average pipe is parallel with the length direction of test piece body, and the shutoff of one end of total pressure average pipe, the other end are connected with total pressure connecting pipe through the trachea connecting piece, the shutoff of one end of static pressure average pipe, the other end are connected with the static pressure connecting pipe through the trachea connecting piece, total pressure connecting pipe and static pressure connecting pipe all are connected with amount of wind, wind pressure display instrument; a plurality of total pressure holes are distributed on the total pressure averaging tube according to the detection position, the total pressure holes are parallel to the wind direction, one end of each total pressure hole is communicated with the total pressure averaging tube, and the other end of each total pressure hole penetrates through the windward end of the blade body; the static pressure is on average to run through on the pipe and is had a plurality of static vents, the direction of static vent is perpendicular with always the pressure port, and the one end of static vent runs through the side of going up of the survey piece body that the static pressure is average to manage and corresponds, and the other end runs through the downside of the survey piece body that the static pressure is average to manage and corresponds, the static vent with always the pressure port one-to-one, the static vent that corresponds with always the pressure port coplane, be equipped with detachable temperature compensation device in the temperature compensation pipe.
Preferably, the cross section of the blade measuring body is in a shuttle-shaped streamline shape, two ends of the shuttle-shaped streamline body respectively correspond to the windward end and the leeward end of the blade measuring body, and the blade measuring body, the total pressure averaging tube, the static pressure averaging tube and the temperature compensation tube are of an aluminum alloy integrated structure; the center of the windward end is provided with a first groove parallel to the total pressure average pipe, the total pressure holes are distributed in the first groove, two side faces of the piece measuring body corresponding to the static pressure average pipe are provided with two second grooves corresponding to each other up and down, and the static pressure holes are distributed in the two second grooves. The arrangement reduces adverse effects caused by various factors, reduces errors in the process of data acquisition of the measuring points, and makes data obtained through the total pressure averaging tube and the static pressure averaging tube more accurate and more accurate if the air intake of the total pressure apertures and the static pressure apertures is more accurate and improves the quality and performance of the measuring sheet.
Preferably, the total pressure holes and the static pressure holes are distributed according to the requirement of GB/T1236-2017 air quantity and air pressure detection positions.
Preferably, the total pressure holes and the static pressure holes are distributed according to the requirement of GB/T50243-2016 wind pressure detection position.
Preferably, the total pressure holes and the static pressure holes are distributed according to the requirement of GB51251-2017 wind pressure detection positions.
The utility model discloses still including other subassemblies that can make ventilation and the special amount of wind pressure measurement survey piece normal use of air conditioner, if with static pressure connecting pipe and always press the external differential pressure sensor or the wind pressure transmitter that the connecting pipe is connected to be the conventional technological means in this area. Additionally, the utility model discloses in not add the conventional technical means in this field of device or subassembly of injecing all adopt, like trachea connecting piece, static pressure connecting pipe, total pressure connecting pipe, amount of wind, wind pressure display instrument, temperature compensation device etc. all adopt conventional technical means in this field.
The utility model discloses an operating principle is, will be original in the testing process in proper order one by one point detect then average calculation obtain the testing result, change the data of each measurement station of disposable measurement simultaneously into, utilize total pressure average pipe and static pressure average pipe directly to obtain each average pressure, once only draw the conclusion after gathering, the result can in the 5-10% error band that accords with the use specification requirement, realize on-line measuring very easily, can also add temperature compensation when strict to the testing result requirement, improve the precision of testing result. The specific process is that the detection is divided into square air duct detection, circular air duct detection and air port detection according to the national standard, determining the positions of each measuring point in the air duct or the air port according to the national standard requirements (the total pressure hole and the static pressure hole are manufactured according to the requirements of punching on the positions of the wind pressure measuring points of the national standard GB/T1236-2017, GB50243-2016 or GB 51251-2017), selecting the measuring sheets with proper number (2 or more than 2) according to the positions of the measuring points, and punching holes (static pressure holes and total pressure holes) on the measuring sheets corresponding to the measuring points, fixing the measuring sheets with the holes at corresponding positions of a detection air duct or an air port, respectively connecting the static pressure average pipe and the total pressure average pipe of each measuring sheet with an external differential pressure sensor or an air pressure transmitter through a static pressure connecting pipe and a total pressure connecting pipe, and directly measuring data by using the existing mature air volume and air pressure instrument or realizing online real-time monitoring.
The utility model has the advantages of simple and reasonable structure, small occupied space, convenient use and no influence on the daily maintenance and use of the ventilation and air-conditioning construction acceptance and smoke-proof and exhaust system; the detection process is convenient and quick, and the detection result is accurate and reliable; the detection accuracy can be correspondingly improved by setting temperature compensation according to the requirement; the wind speed and the wind volume can be accurately measured at one time, and manpower and material resources are saved; the method is suitable for measuring air ducts and air ports with different shapes, and has wide application range.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic structural diagram of an unperforated test piece in this embodiment;
FIG. 2 is a side view of an unperforated test piece of this embodiment;
FIG. 3 is a cross-sectional view of the punched hole of the test piece after punching in this embodiment;
FIG. 4 is a schematic view of a use state of the test strip in the present embodiment;
fig. 5 is a distribution diagram of the measuring points when three rings of the circular air duct are measured in the present embodiment.
In the figure: 1. the test piece comprises a test piece body, 2 parts of a temperature compensation pipe, 3 parts of a static pressure average pipe, 4 parts of a total pressure average pipe, 5 parts of a static pressure hole, 6 parts of a total pressure hole, 7 parts of a first groove, 8 parts of a second groove, 9 parts of a leeward end, 10 parts of a windward end and 11 parts of an air pipe connecting piece.
Detailed Description
The present invention will be described more clearly with reference to the accompanying drawings and specific embodiments in the embodiments of the present invention, and the description herein is only for explaining the present invention, but not for limiting the present invention. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by those skilled in the art without creative efforts should be included in the protection scope of the present invention.
Examples
As shown in fig. 1-5, the utility model provides a special amount of wind pressure measurement test piece of ventilation and air conditioner, including test piece body 1, be equipped with total pressure average pipe 4, static pressure average pipe 3 and the temperature compensation pipe 2 that are parallel to each other along its windward end to leeward end in proper order in the test piece body 1, total pressure average pipe 4 is parallel with the length direction of test piece body 1, and the one end shutoff of total pressure average pipe 4, the other end is connected with total pressure connecting pipe through trachea connecting piece 11, the one end shutoff of static pressure average pipe 3, the other end is connected with the static pressure connecting pipe through trachea connecting piece 11, total pressure connecting pipe and static pressure connecting pipe all are connected with amount of wind, wind pressure display instrument; a plurality of total pressure holes 6 are distributed on the total pressure averaging tube 4 according to the detection position, the total pressure holes 6 are parallel to the wind direction, one end of each total pressure hole 6 is communicated with the total pressure averaging tube 4, and the other end of each total pressure hole penetrates through the windward end of the blade body 1; the static pressure average pipe 3 is provided with a plurality of static pressure holes 5 in a penetrating mode, the direction of each static pressure hole 5 is perpendicular to the total pressure hole 6, one end of each static pressure hole 5 penetrates through the upper side face of the measuring piece body 1 corresponding to the static pressure average pipe 3, the other end of each static pressure hole 5 penetrates through the lower side face of the measuring piece body 1 corresponding to the static pressure average pipe 3, the static pressure holes 5 correspond to the total pressure holes 6 one to one, the corresponding static pressure holes 5 are coplanar with the total pressure holes 6, and the temperature compensation pipe 2 is internally provided with a detachable temperature compensation device.
The cross section of the blade measuring body 1 is in a shuttle-shaped streamline shape, two ends of the shuttle-shaped streamline body respectively correspond to a windward end 10 and a leeward end 9 of the blade measuring body 1, and the blade measuring body 1, the total pressure average pipe 4, the static pressure average pipe 3 and the temperature compensation pipe 2 are of an aluminum alloy integrally-formed structure; the center of the windward end 10 is provided with a groove I7 parallel to the total pressure averaging tube 4, the total pressure holes 6 are distributed in the groove I7, two side faces of the measuring piece body 1 corresponding to the static pressure averaging tube 3 are provided with two grooves II 8 corresponding to each other up and down, and the static pressure holes 5 are distributed in the two grooves II 8. The arrangement reduces adverse effects caused by various factors, reduces errors in the process of data acquisition at the measuring points, and is more accurate and effective if the air intake of the total pressure holes 6 and the static pressure holes 5 is more accurate, so that the data obtained by the total pressure averaging tube 4 and the static pressure averaging tube 3 is more accurate, and the quality and the performance of the measuring piece are improved.
And the total pressure holes 6 and the static pressure holes 5 are distributed according to the requirement of GB/T1236-2017 air quantity and air pressure detection positions.
The total pressure holes 6 and the static pressure holes 5 are distributed according to the requirement of GB/T50243-2016 wind pressure detection positions.
And the total pressure holes 6 and the static pressure holes 5 are distributed according to the requirement of GB51251-2017 wind pressure detection positions.
When the detection device is used, a detection object is divided into square air duct detection, circular air duct detection and air port detection according to national standard requirements, the positions of all measuring points in a detection air duct or an air port are determined according to the national standard requirements (the total pressure hole 6 and the static pressure hole 5 are manufactured by punching according to the position requirements of the national standard GB/T1236-2017 wind pressure measuring point), measuring pieces with proper number (2 or more than 2) are selected according to the positions of the measuring points, and punching is performed on the measuring pieces corresponding to the positions of the measuring points (the static pressure hole 5 and the total pressure hole 6). When the circular air duct to be measured is divided into 3 rings, according to the distribution of the measuring points, two measuring sheets are required to be vertically distributed on two diameters of the circular air duct where the measuring points are located, holes (total pressure holes and static pressure holes) are respectively formed in the two measuring sheets corresponding to the positions of the measuring points one by one, the two measuring sheets are arranged in front of and behind the circular air duct and are vertically fixed to the circular air duct, the windward ends of the two measuring sheets are opposite to the air inlet of the circular air duct, the two measuring sheets are vertical to the side wall of the air duct, after the two measuring sheets are fixed, the static pressure average pipe and the total pressure average pipe of the two measuring sheets are respectively connected with an external differential pressure sensor or a wind pressure transmitter through a static pressure connecting pipe and a total pressure connecting pipe, and the data can be directly.
TABLE 1
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The special air quantity and air pressure measuring piece for ventilation and air conditioning comprises a measuring piece body and is characterized in that: the wind-pressure-average measuring piece is characterized in that a total-pressure-average pipe, a static-pressure-average pipe and a temperature compensation pipe which are parallel to each other are sequentially arranged in the measuring piece body from the windward end to the leeward end of the measuring piece body, the total-pressure-average pipe is parallel to the length direction of the measuring piece body, one end of the total-pressure-average pipe is plugged, the other end of the total-pressure-average pipe is connected with a total-pressure connecting pipe through a gas pipe connecting piece, one end of the static-pressure-average pipe is plugged, the other end of the static-pressure-average pipe is; a plurality of total pressure holes are distributed on the total pressure averaging tube according to the detection position, the total pressure holes are parallel to the wind direction, one end of each total pressure hole is communicated with the total pressure averaging tube, and the other end of each total pressure hole penetrates through the windward end of the blade body; the static pressure is on average to run through on the pipe and is had a plurality of static vents, the direction of static vent is perpendicular with always the pressure port, and the one end of static vent runs through the side of going up of the survey piece body that the static pressure is average to manage and corresponds, and the other end runs through the downside of the survey piece body that the static pressure is average to manage and corresponds, the static vent with always the pressure port one-to-one, the static vent that corresponds with always the pressure port coplane, be equipped with detachable temperature compensation device in the temperature compensation pipe.
2. The special air quantity and air pressure measuring sheet for the ventilation and air conditioning according to claim 1, characterized in that: the cross section of the blade measuring body is in a shuttle-shaped streamline shape, two ends of the shuttle-shaped streamline shape respectively correspond to the windward end and the leeward end of the blade measuring body, and the blade measuring body, the total pressure averaging tube, the static pressure averaging tube and the temperature compensating tube are of an aluminum alloy integrated structure; the center of the windward end is provided with a first groove parallel to the total pressure average pipe, the total pressure holes are distributed in the first groove, two side faces of the piece measuring body corresponding to the static pressure average pipe are provided with two second grooves corresponding to each other up and down, and the static pressure holes are distributed in the two second grooves.
3. The special air quantity and air pressure measuring sheet for the ventilation and air conditioning according to claim 1, characterized in that: and the total pressure holes and the static pressure holes are distributed according to the requirement of GB/T1236-2017 air quantity and air pressure detection positions.
4. The special air quantity and air pressure measuring sheet for the ventilation and air conditioning according to claim 1, characterized in that: the total pressure holes and the static pressure holes are distributed according to the requirement of GB/T50243-2016 wind pressure detection positions.
5. The special air quantity and air pressure measuring sheet for the ventilation and air conditioning according to claim 1, characterized in that: and the total pressure holes and the static pressure holes are distributed according to the requirement of GB51251-2017 wind pressure detection positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290631.2U CN211576248U (en) | 2020-03-11 | 2020-03-11 | Special wind quantity and wind pressure measuring sheet for ventilation and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290631.2U CN211576248U (en) | 2020-03-11 | 2020-03-11 | Special wind quantity and wind pressure measuring sheet for ventilation and air conditioner |
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| Publication Number | Publication Date |
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| CN211576248U true CN211576248U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020290631.2U Active CN211576248U (en) | 2020-03-11 | 2020-03-11 | Special wind quantity and wind pressure measuring sheet for ventilation and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593863A (en) * | 2022-02-28 | 2022-06-07 | 英飞同仁风机股份有限公司 | Pitot tube for measuring average pressure |
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2020
- 2020-03-11 CN CN202020290631.2U patent/CN211576248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593863A (en) * | 2022-02-28 | 2022-06-07 | 英飞同仁风机股份有限公司 | Pitot tube for measuring average pressure |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211118 Address after: 201400 112, building 1, No. 55, Qingcun Chengcheng Road, Fengxian District, Shanghai Patentee after: Shanghai Hongyuan Environmental Technology Co.,Ltd. Address before: 454350 northeast corner of the intersection of Wuyuan road and Zhuyu Avenue, Xiuwu County, Jiaozuo City, Henan Province Patentee before: Xiuwu Hongyuan heating and cooling equipment Co.,Ltd. |
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| TR01 | Transfer of patent right |