CN214664957U - Air interchanger with differential pressure sensor - Google Patents

Air interchanger with differential pressure sensor Download PDF

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Publication number
CN214664957U
CN214664957U CN202022557286.7U CN202022557286U CN214664957U CN 214664957 U CN214664957 U CN 214664957U CN 202022557286 U CN202022557286 U CN 202022557286U CN 214664957 U CN214664957 U CN 214664957U
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China
Prior art keywords
air
differential pressure
pressure sensor
filter
indoor
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CN202022557286.7U
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Chinese (zh)
Inventor
李基成
李东根
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Kyungdong Navien Co Ltd
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Kyungdong Navien Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/39—Monitoring filter performance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0218—Flexible soft ducts, e.g. ducts made of permeable textiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/40—Pressure, e.g. wind pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values

Abstract

According to the utility model discloses a be provided with differential pressure sensor's breather of an embodiment, a serial communication port, include: a first air supply chamber into which outdoor air flows; a second air supply chamber supplying outdoor air flowing into the first air supply chamber to the indoor, and including: a filter for filtering air flowing from the first air supply chamber to the second air supply chamber; a side member provided at a side of the filter and provided thereon with a bypass pipe for bypassing a part of the air flowing through the filter; a differential pressure sensor that measures a pressure difference between intake-side air and exhaust-side air of the filter by the air that flows around; and a blocking module disposed between the bypass pipe and the differential pressure sensor to control flow of bypass air, wherein the blocking module is opened only in a differential pressure detection mode in which a differential pressure of air is measured.

Description

Air interchanger with differential pressure sensor
Technical Field
The application relates to the field of air interchangers, in particular to an air interchanger provided with a differential pressure sensor.
Background
Generally, a ventilator is a device capable of maintaining indoor air in a building in a comfortable state. Such a ventilation apparatus is provided with a filter for filtering outside air, and uses a differential pressure sensor to predict the life of such a filter.
The differential pressure sensor used in such a ventilation apparatus is environmentally affected by the outside air, and particularly, the differential pressure sensor for measuring the differential pressure by circulating a part of the air flowing through the filter is always exposed to foreign substances such as dust, and thus, there is a problem that the service life is shortened and the precision is degraded.
Further, when the ventilation apparatus is used over a certain period of time, since foreign substances are accumulated in the filter, it is necessary to periodically clean or replace the filter, and for this reason, it is necessary to prompt the user for an appropriate replacement period of the filter.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be provided with differential pressure sensor's breather, it can promote precision in extension differential pressure sensor's life-span to can acquire the differential pressure data who is used for predicting the filter life-span more steadily.
According to an embodiment of the utility model, a be provided with differential pressure sensor's breather is provided, include: a first air supply chamber into which outdoor air flows; a second air supply chamber supplying outdoor air flowing into the first air supply chamber to the inside of the room, and including: a filter for filtering air flowing from the first air feeding chamber to the second air feeding chamber; a side member provided at a side of the filter and provided thereon with a bypass pipe for bypassing a part of the air flowing through the filter; a differential pressure sensor that measures a pressure difference between intake-side air and exhaust-side air of the filter by the air flowing around; and a blocking module disposed between the bypass pipe and the differential pressure sensor to control a flow of bypass air, wherein the blocking module is opened only in a differential pressure detection mode in which a differential pressure of air is measured.
According to the utility model discloses an embodiment is used for controlling the blocking module of the flow of the air of flowing around between flow tube and differential pressure sensor through adding to through only opening this blocking module under the differential pressure detection mode of the pressure differential of measuring the air, can promote precision in extension differential pressure sensor's life-span.
Further, according to an embodiment of the present invention, by forming the indoor circulation mode and the flow path on the ventilator as described above, and by operating the differential pressure sensor in the indoor circulation mode in which indoor air flows in and is resupplied to the room, it is possible to more stably acquire differential pressure data for predicting the life of the filter.
Drawings
Fig. 1 is a view illustrating a ventilation apparatus according to an embodiment of the present invention.
Fig. 2 is a plan view of a ventilation apparatus provided with a differential pressure sensor according to an embodiment of the present invention.
Fig. 3A is a view of a side member according to an embodiment of the present invention, viewed from one side.
Fig. 3B is a view of a side member according to an embodiment of the present invention, viewed from the other side.
Fig. 4 is a view of a differential pressure sensor and a blocking module attached to a side member according to one embodiment of the present invention.
Fig. 5 is a graph showing a comparison of differential pressure data detected by a differential pressure sensor in a purge mode as an indoor circulation mode and a ventilation mode according to an embodiment of the present invention.
Reference is made to the accompanying drawings in which:
a ventilation device 100, a first exhaust chamber 110, a second exhaust chamber 120, a first air supply chamber 130, a second air supply chamber 140, a heat exchanger 150, a filter 160, a circulation passage 170;
the ventilator 200 provided with a differential pressure sensor, a side member 210, bypass pipes 211 and 212, a differential pressure sensor 220, and a shutoff module 230.
Detailed Description
Hereinafter, embodiments of the present invention are described with reference to the drawings. However, the embodiments of the present invention may be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shapes and dimensions of elements in the drawings may be exaggerated for clarity of description, and the same reference numerals are used for the same elements in the drawings.
Fig. 1 is a view illustrating an air exchange device 100 according to an embodiment of the present invention, and fig. 2 is a top view of an air exchange device 200 provided with a differential pressure sensor according to an embodiment of the present invention. On the other hand, fig. 3A is a view of a side member according to an embodiment of the present invention viewed from one side, and fig. 3B is a view of a side member according to an embodiment of the present invention viewed from the other side. Further, fig. 4 is a view of a differential pressure sensor and a blocking module attached to a side member according to an embodiment of the present invention.
First, as shown in fig. 1, a ventilation apparatus 100 according to an embodiment of the present invention may include: a first discharge chamber 110 into which the indoor air flows into the first discharge chamber 110; a second discharge chamber 120 discharging the indoor air flowing through the first discharge chamber 110 to the outside; a first air feeding chamber 130 into which outdoor air flows; a second air supply chamber 140 supplying outdoor air flowing through the first air supply chamber 130 to the indoor; a heat exchanger 150 for performing heat exchange between air flowing from the first air discharge chamber 110 to the second air discharge chamber 120 and air flowing from the first air supply chamber 130 to the second air supply chamber 140; and at least one filter 160 for filtering outdoor air flowing from the first feeding chamber 130 to the second feeding chamber 140.
On the other hand, according to an embodiment of the present invention, the blocking module 230 as described above may be configured to be opened only in a differential pressure detection mode in which the differential pressure of air is measured. The differential pressure detection mode as described above may be an indoor circulation mode (also referred to as 'purge mode') in which the indoor air is re-supplied into the room after flowing in.
On the other hand, in order to implement the indoor circulation mode, the circulation passage 170 may be formed such that the indoor air flowing into the first discharge chamber 110 is recirculated indoors through the first air supply chamber 130.
Referring again to fig. 1, the indoor side of the first exhaust chamber 110 may be provided with an indoor air inflow port 111 into which indoor air flows, and a first circulation damper 172 may be provided on one side of the first exhaust chamber 110 for opening or closing a first exhaust chamber opening 173 formed between the circulation passage 170 and the first exhaust chamber 110. The first circulation damper 172 may be provided as an electric damper that rotates a damper plate around a hinge 171 at one side.
An indoor air discharge port 121 through which indoor air is discharged to the outdoor side may be provided at one side of the second discharge chamber 120, and an exhaust damper 122 for opening or closing a flow path through which indoor air is discharged to the outdoor side may be provided at the indoor air discharge port 121. Further, an exhaust blower 123 for forcibly sucking indoor air to the outdoor side may be provided inside the second exhaust chamber 120.
An outdoor air inflow port 131 through which outdoor air flows may be provided at an outdoor side of the first air feeding chamber 130, and a second circulation damper 175 for opening or closing a first air feeding chamber opening 176 formed between the circulation passage 170 and the first air feeding chamber 130 may be provided at one side of the first air feeding chamber 130. The second circulation damper 175 may be provided as an electric damper that rotates a damper panel around a hinge 174 at one side end.
An air supply damper 132 for opening or closing a flow path through which outdoor air flows into the room may be provided at the outdoor air inflow port 131, and a filter 134 for filtering foreign substances contained in the inflow outdoor air may be provided inside the first air supply chamber 130.
The indoor side of the second air supply chamber 140 may be provided with an outdoor air discharge port 141 through which outdoor air is discharged to the indoor side, and the inside of the second air supply chamber 140 may be provided with an air supply blower 143 for forcibly drawing the outdoor air to the indoor side.
The heat exchanger 150 has a structure in which a flow path through which indoor air flows and a flow path through which outdoor air flows are alternately formed, thereby allowing heat exchange between the indoor air and the outdoor air. A side of the heat exchanger 150 facing the first air supply chamber 130 may be provided with a filter 160 to filter foreign substances contained in the outdoor air supplied in the ventilation mode or the indoor air circulated in the indoor circulation mode.
The circulation passage 170 may be provided at the side of the first discharge plenum 110 and the first supply plenum 130 to allow the indoor air flowing in from the first discharge plenum 110 to be recirculated into the room through the second supply plenum 130.
On the other hand, the circulation duct 170 may further include a circulation blower 178 and a filter 177.
The circulation blower 178 may be activated in an indoor circulation mode to cause air to flow from the first discharge plenum 110 toward the first supply plenum 130. The air supply blower 143 may be set to be activated in the indoor circulation mode to circulate the indoor air, or the circulation blower 178 may be further activated in consideration of flow path resistance acting on the indoor air circulation flow path to increase the circulation flow rate of the indoor air.
The filter 177 filters foreign substances contained in the circulated indoor air, so that the air can be circulated indoors after being purified. At this time, the circulation passage 170 is connected to the first air feeding chamber 130, so that the indoor air can flow to the second air feeding chamber 140 after passing through the filter 160 and the heat exchanger 150 from the first air feeding chamber 130 in the indoor circulation mode. Therefore, after the circulated indoor air flows through the filter 177 inside the circulation passage 170, it also flows through the filter 160 provided on the heat exchanger 150. Therefore, even if only one filter 177 for purifying air is added, cleaner air can be provided because it will pass through the original filter 160.
The filter 160 may be disposed at a side of the heat exchanger 150 facing the first air feeding chamber 130. At this time, the filter 160 may filter foreign substances contained in the air flowing into the heat exchanger 150.
The filter 160 may employ various filters such as a high efficiency filter, a pre-filter, a middle efficiency filter, a deodorizing filter, and the like, and may employ one or more filters.
On the other hand, referring to fig. 2 to 4, the side of the filter 160 may further include: a side member 210 on which bypass pipes 211 and 212 for bypassing a part of air flowing through the filter 160 are provided; a differential pressure sensor 220 that measures a pressure difference between the air on the suction side and the air on the exhaust side of the filter 160 by the air flowing around; and a blocking module 230 disposed between the bypass pipes 211 and 212 and the differential pressure sensor 220, controlling the flow of bypass air.
The bypass pipes 211 and 212 as described above may include: an inflow tube 211 penetratingly formed at the side member 210 such that a portion of air flowing through the filter 160 flows in; an inflow pipe connection part 211a locked between the inflow pipe 211 and the differential pressure sensor 220, and introducing air flowing in through the inflow pipe 211 into the differential pressure sensor 220; an outflow pipe 212 penetratingly formed at the side member 210 so that air flowing through the differential pressure sensor 220 flows out; the outflow pipe connection part 212a, which is locked between the outflow pipe 212 and the differential pressure sensor 220, introduces air flowing through the differential pressure sensor 220 into the outflow pipe 212, and the blocking module 230 as described above may be provided on at least one of the inflow pipe connection part 211a and the outflow pipe connection part 212 a.
The blocking module 230 of the present invention may be, for example, a solenoid valve, but it should be noted that the blocking module is not limited to the solenoid valve if it is a shutter related to the flow of the air around.
On the other hand, as shown in fig. 2, the inflow pipe 211 as described above may communicate with an inner space of the first air feeding chamber 130 to which the suction side of the filter 160 into which air flows, and the outflow pipe 212 may communicate with an inner space S1 between the discharge side of the filter 160 from which air flows and the heat exchanger 150.
On the other hand, as shown in fig. 2, 3B and 4, the side member 210 may further have formed thereon: a fixing member 214 such that the inflow tube connecting part 211a or the outflow tube connecting part 212a is fixed through the fixing member 214; and a seating member 213 for seating a differential pressure sensor 220 on an upper portion of the seating member.
Fig. 4 shows the differential pressure sensor 220 seated on the seating member 213 of the side member 210 and the inflow pipe connection portion 211a or the outflow pipe connection portion 212a passing through the fixing member 214.
On the other hand, according to an embodiment of the present invention, the differential pressure sensor 220 may operate in an indoor circulation mode in which indoor air flows in and is resupplied to the room.
Fig. 5 is a graph showing a comparison of differential pressure data measured by a differential pressure sensor in a purge mode and a purge mode as an indoor circulation mode according to an embodiment of the present invention, (a) is differential pressure data measured in a strong wind condition of the purge mode and a strong wind condition of the purge mode, (b) is differential pressure data measured in a weak wind condition of the purge mode and a weak wind condition of the purge mode, and (c) is differential pressure data measured in a breeze condition of the purge mode and a breeze condition of the purge mode.
As shown in fig. 5, the range of change of the differential pressure data measured in the ventilation mode in which the outside air flows is larger than that in the purge mode, and thus it is understood that the differential pressure data for predicting the life of the filter can be more stably obtained by measuring the differential pressure in the purge mode in this way.
As described above, according to an embodiment of the present invention, by adding a blocking module for controlling the flow of air that flows around between the flow around pipe and the differential pressure sensor, and by opening the blocking module only in the differential pressure detection mode that measures the differential pressure of the air, it is possible to improve the precision while extending the life of the differential pressure sensor.
Further, according to an embodiment of the present invention, by forming the indoor circulation mode and the flow path on the ventilator as described above, and by operating the differential pressure sensor in the indoor circulation mode in which indoor air flows in and is resupplied to the room, it is possible to more stably acquire differential pressure data for predicting the life of the filter.
The present invention is not limited to the embodiments and drawings described above. The present invention is intended to limit the scope of claims to be claimed in the claims, and persons having ordinary skill in the art to which the present invention pertains may naturally make substitutions, modifications, and alterations without departing from the technical spirit of the present invention recited in the claims.

Claims (8)

1. A ventilation device provided with a differential pressure sensor, characterized by comprising:
a first air supply chamber into which outdoor air flows;
a second air supply chamber supplying outdoor air flowing into the first air supply chamber to the indoor,
and comprises:
a filter for filtering air flowing from the first air feeding chamber to the second air feeding chamber;
a side member provided at a side of the filter and provided thereon with a bypass pipe for bypassing a part of the air flowing through the filter;
a differential pressure sensor that measures a pressure difference between intake-side air and exhaust-side air of the filter by the air flowing around; and
a blocking module arranged between the bypass pipe and the differential pressure sensor and used for controlling the flow of bypass air,
wherein the blocking module is opened only in a differential pressure detection mode in which a differential pressure of air is measured.
2. The air gasper of claim 1,
the bypass pipe comprises:
an inflow pipe penetratingly formed at the side member such that a portion of air flowing through the filter flows in;
an inflow pipe connection part locked between the inflow pipe and the differential pressure sensor, and introducing air flowing in through the inflow pipe into the differential pressure sensor;
an outflow pipe penetratingly formed at the side member so that air flowing through the differential pressure sensor flows out; and
an outflow pipe connection part locked between the outflow pipe and the differential pressure sensor, introducing air flowing through the differential pressure sensor into the outflow pipe,
wherein the blocking module is provided on at least one of the inflow tube connection part and the outflow tube connection part.
3. The air gasper of claim 1, wherein the blocking module comprises a solenoid valve.
4. The air gasper of claim 2,
the side member further has formed thereon:
a fixing member such that the inflow tube connection part or the outflow tube connection part is fixed through the fixing member; and
and a mounting member for mounting the differential pressure sensor on an upper portion of the mounting member.
5. The air gasper of claim 2,
the inflow pipe is communicated with the inner space of the first air supply chamber which is provided with the air inflow and belongs to the air suction side of the filter;
the outflow pipe communicates with an inner space between the filter exhaust side, through which air flows out, and the heat exchanger.
6. The air gasper of claim 1,
the differential pressure sensor operates in an indoor circulation mode in which indoor air flows in and is resupplied to the indoor.
7. The air gasper of claim 6,
the ventilation device further includes:
a first discharge chamber into which indoor air flows;
a second discharge chamber discharging the indoor air flown in through the first discharge chamber to the outside; and
a circulation passage for recirculating the indoor air flowing into the first discharge chamber into the room through the first supply chamber when measuring a differential pressure of the air.
8. The air gasper of claim 7,
the circulation passage is provided at a side of the first exhaust chamber and the first supply chamber.
CN202022557286.7U 2020-03-23 2020-11-06 Air interchanger with differential pressure sensor Active CN214664957U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200034755A KR20210118493A (en) 2020-03-23 2020-03-23 Ventilator equipped with differential pressure sensor
KR10-2020-0034755 2020-03-23

Publications (1)

Publication Number Publication Date
CN214664957U true CN214664957U (en) 2021-11-09

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Application Number Title Priority Date Filing Date
CN202022557286.7U Active CN214664957U (en) 2020-03-23 2020-11-06 Air interchanger with differential pressure sensor

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KR (1) KR20210118493A (en)
CN (1) CN214664957U (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102425661B1 (en) 2017-12-15 2022-07-27 주식회사 경동나비엔 Ventilator and the control method thereof

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