CN111520860A - Gas supply system - Google Patents
Gas supply system Download PDFInfo
- Publication number
- CN111520860A CN111520860A CN202010012661.1A CN202010012661A CN111520860A CN 111520860 A CN111520860 A CN 111520860A CN 202010012661 A CN202010012661 A CN 202010012661A CN 111520860 A CN111520860 A CN 111520860A
- Authority
- CN
- China
- Prior art keywords
- air
- air supply
- store
- outside
- supply system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
- F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention can restrain the load increase caused by the inflow of the outside air into the target chamber, thereby realizing the energy saving. An air supply system includes an air supply device (40) that supplies outside air to the interior of a store (1), the air supply device (40) being driven according to the pressure difference between the interior and the exterior of the store (1), exhaust devices (20a, 20b) that exhaust the interior air of the store (1) to the outside being provided in the store (1), and air supply ports (43a, 43b) of the air supply device (40) that blow the outside air to the interior of the store (1) being disposed in the vicinity of inlet ports (23a, 23b) of the exhaust devices (20a, 20b) that introduce the interior air of the store (1). Air supply ports (43a, 43b) of an air supply device (40) are arranged closer to the introduction ports (23a, 23b) than an air outlet port (11a) of an air conditioner (10) that performs air conditioning of the internal air of the store (1).
Description
Technical Field
The present invention relates to an air supply system.
Background
Conventionally, an exhaust element and an air supply system are installed in a room such as a store. The exhaust member exhausts the inside air of the shop to the outside. The gas supply system includes a gas supply element and a differential pressure detection element. The air supply unit supplies outside air to the interior of the store. The differential pressure detection element detects a pressure difference between the inside and the outside of the store.
In the above-described air supply system, the air supply cell is driven based on the detection result of the differential pressure detection cell so that the internal pressure of the store is equal to the external pressure (atmospheric pressure) of the store, or so that the internal pressure of the store is greater than the external pressure (atmospheric pressure) of the store (see, for example, patent document 1).
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2001-153441
In the above air supply system, the air supply port through which the outside air is blown toward the interior of the store by the air supply means may be provided at any position. Therefore, when the outside air is blown into the interior of the store, the enthalpy of the outside air flows into the interior of the store, and thus the load on the air conditioning apparatus for air conditioning the interior air of the store and the commodity storage apparatus such as the showcase disposed in the interior of the store increases, and as a result, the energy consumption may increase.
Disclosure of Invention
The present invention has been made in view of the above circumstances, and an object thereof is to provide an air supply system that can suppress an increase in load due to inflow of outside air into a target room, thereby achieving energy saving.
In order to achieve the above object, an air supply system according to the present invention includes an air supply element that supplies outside air to an inside of a target chamber, the air supply element being driven according to a pressure difference between the inside and the outside of the target chamber, an exhaust element that exhausts the inside air of the target chamber to the outside being provided in the target chamber, and an air supply port of the air supply element that blows the outside air to the inside of the target chamber being disposed in the vicinity of an introduction port of the exhaust element into which the inside air of the target chamber is introduced.
In the air supply system according to the present invention, the air supply port of the air supply element is disposed closer to the introduction port than an air outlet of an air conditioner that performs air conditioning of the internal air of the target chamber.
In the air supply system according to the present invention, when a plurality of the air discharging elements are provided, the air supply port of the air supply element is disposed in the vicinity of the introduction port of the air discharging element in which the discharge amount of the internal air is largest.
According to the present invention, since the air supply port of the air supply element for blowing the outside air into the target chamber is disposed in the vicinity of the inlet port of the air discharge element for introducing the inside air into the target chamber, most of the outside air blown from the air supply port is discharged to the outside through the inlet port by the air discharge element without circulating inside the target chamber. That is, the amount of air blown into the interior of the target chamber by the air supply element and circulated in the interior can be reduced, and the amount of intrusion of outside air into the interior can be reduced. In this way, since the amount of intrusion of the outside air into the target chamber can be reduced, the amount of inflow of the enthalpy of the outside air can be reduced. This makes it possible to reduce the heat load on each device in the target room while stabilizing the internal air, thereby achieving the effect of reducing the load increase due to the inflow of the external air into the target room, and saving energy.
Drawings
Fig. 1 is a schematic view schematically showing an air supply system according to an embodiment of the present invention.
(symbol description)
1 shop
10 air conditioner
11 indoor machine
11a air outlet
12 outdoor machine
13 refrigerant line
20a, 20b exhaust device
21a, 21b exhaust gas flow path
22a, 22b exhaust fan
23a, 23b introduction ports
30 differential pressure detection device
31 differential pressure detection pipeline
32 differential pressure detection unit
40 air supply device
41 air supply flow path
42 external air inlet
43a, 43b air supply port
44 air supply fan
50 control part
Detailed Description
Hereinafter, preferred embodiments of the air supply system according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic view schematically showing an air supply system according to an embodiment of the present invention. The air supply system exemplified here is a store 1 such as a convenience store or a supermarket as a target room. The store 1 is provided with an air conditioner 10 and exhaust devices (exhaust means) 20a and 20 b.
The air conditioning apparatus 10 adjusts the temperature, humidity, cleanliness, and the like of air (hereinafter also referred to as inside air) inside the store 1 (hereinafter also referred to as store), and includes an indoor unit 11. The indoor unit 11 is installed on a ceiling or the like in the store, and is connected to an outdoor unit 12 installed outside the store 1 (hereinafter, also referred to as an outdoor unit) through a refrigerant pipe 13. In the air conditioning apparatus 10, the refrigerant is circulated between the indoor unit 11 and the outdoor unit 12 while repeating compression, condensation, adiabatic expansion, and evaporation, thereby adjusting the temperature of the inside air. Here, the air conditioner 10 cools the inside air, and the indoor unit 11 is provided with a plurality of (for example, four) air outlet ports 11 a.
Although not explicitly shown in the drawings, the store 1 has a doorway for a customer or the like formed in a part of the outer wall 2, and a cooking area for cooking food, for example, a commodity storage device such as a showcase, is provided in the store.
The exhaust devices 20a and 20b are provided in plural (two in the illustrated example), and include exhaust passages 21a and 21b at locations separated from each other. The exhaust passages 21a, 21b are provided to communicate the inside of the store with the outside of the store, and exhaust fans 22a, 22b are disposed midway therebetween. The exhaust fans 22a and 22b are driven by operating an operation unit (not shown) provided in the store 1 to ventilate the store 1 and discharge odor and the like. When the exhaust fans 22a and 22b are driven, the exhaust devices 20a and 20b draw in the internal air from the inlets 23a and 23b of the exhaust passages 21a and 21b, and discharge the internal air to the outside of the store through the exhaust passages 21a and 21 b.
Although the above-described cases where the exhaust devices 20a and 20b include the exhaust flow paths 21a and 21b that communicate the inside and the outside of the store have been described, the exhaust devices 20a and 20b may be configured such that an exhaust fan, which is called a ventilation fan, is provided in an exhaust hole formed in the outer wall 2 of the store (target room) 1. In this case, the opening of the air outlet hole facing the inside of the store serves as an inlet, and the inside air is introduced from the inlet and discharged to the outside of the store by driving the air outlet fan.
The air supply system includes a differential pressure detection device 30, an air supply device (air supply element) 40, and a control unit 50. The differential pressure detection device 30 includes a differential pressure detection pipe 31 and a differential pressure detection unit 32.
The differential pressure detection pipe 31 is provided to communicate the inside and outside of the store. The opening 33 at one end of the differential pressure detection pipe 31 faces the inside of the store, and the opening 34 at the other end faces the outside of the store. The differential pressure detection duct 31 causes air to flow in its own axial direction.
The differential pressure detection unit 32 is disposed at an arbitrary position of the differential pressure detection pipe 31, and detects a pressure difference between the inside and outside of the store. The differential pressure detection unit 32 supplies the detection result to the control unit 50 as a differential pressure signal.
The air supply device 40 includes an air supply flow path 41. The air supply flow path 41 is provided to communicate the inside of the store with the outside of the store, has an outside air inlet 42 at one end, is branched into two at the middle, and has air supply ports 43a and 43b at the other ends facing the inside of the store. Further, in the air supply flow path 41, an air supply fan 44 is disposed between the external air introduction port 42 and the branch portion. The air supply fan 44 is driven in accordance with an instruction given from the control portion 50.
When the air supply fan 44 is driven, the air supply device 40 introduces outside air from the outside air introduction port 42, passes the outside air through the air supply flow path 41, and then blows the outside air into the store through the air supply ports 43a and 43 b. In the air supply device 40, the air supply ports 43a and 43b are disposed near the introduction ports 23a and 23b of the air discharge devices 20a and 20 b.
More specifically, air supply port 43a is disposed closer to inlet 23a than air outlet 11a of air conditioner 10, and air supply port 43b is disposed closer to inlet 23b than air outlet 11a of air conditioner 10.
The control unit 50 centrally controls the operations of the respective units of the air supply system based on programs and data stored in a storage unit, not shown. More specifically, the control unit 50 drives the air supply device 40 (mainly, the air supply fan 44) based on the differential pressure signal supplied from the differential pressure detection unit 32 so that the pressure inside the store is equal to the pressure outside the store (atmospheric pressure) or so that the pressure inside the store is higher than the pressure outside the store.
The control Unit 50 may be realized by software that is a program executed by a Processing device such as a CPU (Central Processing Unit), or may be realized by hardware such as an IC (Integrated Circuit), or may be realized by using both software and hardware.
In the air supply system having the above configuration, under the condition that the air discharge device 20 is driven, the control unit 50 drives the air supply fan 40 so that the in-store pressure is equal to the pressure (atmospheric pressure) outside the store or so that the in-store pressure is higher than the pressure outside the store, based on the differential pressure signal supplied from the differential pressure detection unit 32, and the outside air outside the store introduced from the outside air introduction port 42 is blown into the store from the air supply ports 43a and 43b through the air supply flow path 41.
Further, since the air supply port 43a is disposed closer to the inlet 23a than the air outlet 11a of the air conditioner 10 and the air supply port 43b is disposed closer to the inlet 23b than the air outlet 11a of the air conditioner 10, most of the outside air blown from the air supply port 43a is introduced into the exhaust flow path 21a through the inlet 23a and discharged to the outside without circulating in the store, and most of the outside air blown from the air supply port 43b is introduced into the exhaust flow path 21b through the inlet 23b and discharged to the outside without circulating in the store.
That is, the amount of air blown into the store by the air supply device 40 and circulated in the store can be reduced, and the amount of intrusion of outside air into the store can be reduced.
As described above, according to the air supply system of the embodiment of the present invention, the amount of outside air entering the store can be reduced, and therefore, the amount of inflow of enthalpy of the outside air can be reduced. This stabilizes the internal air and reduces the heat load of air conditioning of the air conditioner 10 and the heat load of the commodity storage device. Specifically, the heat load of the air conditioner can be reduced in the portion where the amount of reduction in the amount of intrusion of the outside air and the enthalpy difference between the outside air and the inside air are multiplied, and the heat load can be reduced in the portion where the amount of reduction in the amount of entrainment of the commodity-accommodating device during the cooling operation and the enthalpy difference between the outside air and the inside air are multiplied. As a result, an increase in load due to inflow of outside air into the store can be suppressed, and energy saving can be achieved.
While the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications can be made.
In the above embodiment, the air supply passage 41 constituting the air supply device 40 is branched at a middle portion, and the air supply ports 43a and 43b are disposed in the vicinity of the introduction ports 23a and 23b of the air discharge devices 20a and 20b, but in the present invention, one air supply port may be disposed in the vicinity of any one of the introduction ports 23a and 23 b. In the plurality of air discharging devices 20a and 20b, for example, when the air discharge amount of the air discharging device 20b is larger than the air discharge amount of the air discharging device 20a, the air supply port is preferably disposed in the vicinity of the introduction port 23b of the air discharging device 20 b.
Claims (3)
1. An air supply system includes an air supply member that supplies external air to the inside of a subject room, the air supply member being driven according to a pressure difference between the inside and the outside of the subject room,
the gas supply system is characterized in that,
an exhaust element for discharging the air in the target chamber to the outside is provided in the target chamber,
an air supply port of the air supply element, through which the outside air is blown toward the inside of the target chamber, is disposed in the vicinity of an introduction port of the air discharge element, through which the inside air of the target chamber is introduced.
2. An air supply system as claimed in claim 1,
the air supply port of the air supply element is disposed closer to the introduction port than an air outlet of an air conditioner that performs air conditioning of the internal air of the target chamber.
3. Air supply system according to claim 1 or 2,
when a plurality of the air discharging elements are provided, the air supply port of the air supplying element is disposed in the vicinity of an introduction port of the air discharging element in which the discharge amount of the internal air is largest.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-019199 | 2019-02-05 | ||
| JP2019019199A JP2020125879A (en) | 2019-02-05 | 2019-02-05 | Air supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111520860A true CN111520860A (en) | 2020-08-11 |
Family
ID=71910384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010012661.1A Pending CN111520860A (en) | 2019-02-05 | 2020-01-07 | Gas supply system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2020125879A (en) |
| CN (1) | CN111520860A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001317772A (en) * | 2000-05-11 | 2001-11-16 | Matsushita Refrig Co Ltd | Air conditioning system for stores |
| CN105928123A (en) * | 2015-02-27 | 2016-09-07 | 阿自倍尔株式会社 | Room pressure control system and room pressure control method |
| CN105934636A (en) * | 2014-01-20 | 2016-09-07 | 松下知识产权经营株式会社 | Ventilation system |
| WO2018056191A1 (en) * | 2016-09-26 | 2018-03-29 | パナソニックＩｐマネジメント株式会社 | Heat exchange-type ventilation device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5115728A (en) * | 1990-09-28 | 1992-05-26 | Landis & Gyr Powers, Inc. | System for controlling the differential pressure of a room having laboratory fume hoods |
| JPH08233318A (en) * | 1995-02-23 | 1996-09-13 | Daiwa House Ind Co Ltd | Natural air supplying device from underfloor of kitchen |
| JP2001153441A (en) * | 1999-11-29 | 2001-06-08 | Matsushita Refrig Co Ltd | Air-conditioning system for shop |
| JP2006010269A (en) * | 2004-06-29 | 2006-01-12 | Sanki Eng Co Ltd | Ductless air supply and exhaust system for house |
| JP5207051B2 (en) * | 2008-08-08 | 2013-06-12 | 清水建設株式会社 | Cooling load reduction system and cooling load reduction method |
| JP6775198B2 (en) * | 2017-03-31 | 2020-10-28 | パナソニックＩｐマネジメント株式会社 | Air supply control method, air supply control device, and ventilation system |
-
2019
- 2019-02-05 JP JP2019019199A patent/JP2020125879A/en not_active Withdrawn
-
2020
- 2020-01-07 CN CN202010012661.1A patent/CN111520860A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001317772A (en) * | 2000-05-11 | 2001-11-16 | Matsushita Refrig Co Ltd | Air conditioning system for stores |
| CN105934636A (en) * | 2014-01-20 | 2016-09-07 | 松下知识产权经营株式会社 | Ventilation system |
| CN105928123A (en) * | 2015-02-27 | 2016-09-07 | 阿自倍尔株式会社 | Room pressure control system and room pressure control method |
| WO2018056191A1 (en) * | 2016-09-26 | 2018-03-29 | パナソニックＩｐマネジメント株式会社 | Heat exchange-type ventilation device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020125879A (en) | 2020-08-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200811 |
|
| RJ01 | Rejection of invention patent application after publication |