CN105674394A - Anti-freezing fan coil assembly - Google Patents
Anti-freezing fan coil assembly Download PDFInfo
- Publication number
- CN105674394A CN105674394A CN201510896364.7A CN201510896364A CN105674394A CN 105674394 A CN105674394 A CN 105674394A CN 201510896364 A CN201510896364 A CN 201510896364A CN 105674394 A CN105674394 A CN 105674394A
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- valve
- fan coil
- type fan
- coil units
- units according
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an anti-freezing fan coil assembly. The anti-freezing fan coil assembly comprises at least one coil pipeline, a water inlet device and a water outlet device, wherein the water inlet device communicates with inlets of all the coil pipelines, and the water outlet device communicates with outlets of all the coil pipelines. The water inlet device is provided with a venting valve, and the water outlet device is provided with an air inlet valve. The venting valve and the air inlet valve are selectively and synchronously opened or closed along with the temperature of an external surface air cooler. According to the fan coil assembly, water in a coil can be automatically drained completely when the air temperature is low, and thus the fan coil can be protected against frost cracks under the condition that the fan coil is not in use in winter.
Description
Technical field
The present invention relates to HVAC system regions, more particularly, to a kind of anti-freeze type fan coil units.
Background technology
China is in Rapid development stage, and in existing building, the overwhelming majority adopts central air conditioner system. Install and in use procedure in central air conditioner system, fan coil is the end prod of central air-conditioning, by heat exchange coil, water pipe, filter, fan, drip tray, air bleeding valve, supports etc. form, its operation principle is the air in constantly room, recirculation place in unit, is cooled (heating), to keep the constant of room temperature after bypassing air through cold water (hot water) coil pipe. Generally, new wind sends into indoor after being processed by Fresh air handling units, to meet the needs of air-conditioned room resh air requirement.
Generally, the hot media in air conditioning unit heat exchanger is water (table is cold: 7～12 DEG C; Heat 50 60 DEG C or have steam to heat). The winter in the north, when temperature is down to after below zero centigrade, no matter it is purification air-conditioning, business air conditioner, domestic air conditioning or fresh air conditioner, the operation of machine room and management standby must add attention, the careless slightly bursting by freezing that tail end air conditioner equipment heating coil Surface cooling coil etc. will occur, owing to fan coil units is arranged in furred ceiling more, once bursting by freezing is leaked furred ceiling and indoor equipment, item spoilage is bigger.
The antifreeze fan coil drain valve of prior art is hand-operated valve, by being manually operated, artificially judging water discharge time. Existing common anti-freeze type fan coil, is only changed coil arrangement and installs drain valve in water inlet position, but can not the residual water in coil pipe thoroughly be drained, still having the risk that coil pipe is damaged by frost. Because HVAC chilled water system is closed system, existing anti-frostbite disc apparatus does not have air intake installation, causes the water discharge in coil pipe slowly or to stop, it is impossible to what realize truly is antifreeze.
Summary of the invention
For Problems existing in correlation technique, it is an object of the invention to provide a kind of can the anti-freeze type fan coil units of the water in automatic-discharging pipe, bursting by freezing when to prevent fan coil from leaving unused in the winter time when temperature is relatively low.
For achieving the above object, the invention provides a kind of anti-freeze type fan coil units, the discharging device of the water feed apparatus connected with the entrance of all coil pipe pipelines including at least one road coil pipe pipeline and the outlet with all coil pipe pipelines, wherein, water feed apparatus has eduction valve and discharging device is provided with intake valve, eduction valve and intake valve and optionally synchronizes to be turned on and off with surface cooler temperature.
According to the present invention, water feed apparatus has water inlet and outlet, the water inlet of water feed apparatus is configured to open end and outlet connects with the entrance of all coil pipe pipelines, discharging device has entrance and outlet, and the outlet of discharging device is configured to open end and entrance and the outlet of all coil pipe pipelines.
According to the present invention, water feed apparatus has current by pass, and eduction valve is arranged in current by pass.
According to the present invention, current by pass is additionally provided with flow switch.
According to the present invention, current by pass connects with the bottom flow of water feed apparatus.
According to the present invention, exhaust apparatus also includes air bleeding valve, and air bleeding valve and intake valve are arranged at the top of discharging device.
According to the present invention, fan coil units also includes the attemperating unit for sensing surface cooler temperature being connected with eduction valve and intake valve.
According to the present invention, attemperating unit electrically connects with eduction valve and intake valve or is mechanically connected.
According to the present invention, eduction valve is metal structure valve.
According to the present invention, fan coil units also includes the drip tray for accepting the fluid that current by pass flows out.
According to the present invention, intake valve is the electric control valve or manual modulation valve that are Tong Bu turned on and off with eduction valve.
The beneficial effects of the present invention is:
In the anti-freeze type fan coil units of the present invention, compared with prior art, fan coil units is provided with and optionally synchronizes, with surface cooler temperature, the eduction valve and the intake valve that are turned on and off, when surface cooler temperature is relatively low, eduction valve and intake valve can be opened simultaneously, realize the self-draining of fan coil and also improve drainage speed simultaneously, thus the coil frost broken preventing the heat exchange coil chance cold junction in fan coil from freezing and causing;
Further, by eduction valve being arranged on the bottom of water feed apparatus and air bleeding valve being arranged on the top of exhaust apparatus so that this fan coil units draining is more thorough, prevent due to the water of residual and the frost crack pipe that causes in pipeline further;
Additionally, by arranging flow switch in current by pass, when the water in fan coil drains, flow switch is automatically switched off eduction valve so that system pipeline valve recovers initial condition automatically, it is simple to the recovery of duty during system start-up.
Accompanying drawing explanation
Fig. 1 illustrates the axonometric chart of an embodiment of the anti-freeze type fan coil units according to the present invention.
Detailed description of the invention
Now according to specific embodiment, the present invention is described. Fig. 1 illustrates the schematic diagram of an embodiment of the fan coil according to the present invention.
In the embodiment shown in fig. 1, this fan coil units includes No. three coil pipe pipelines 7, as best shown in scheme, respectively a road coil pipe pipeline, b road coil pipe pipeline and n road coil pipe pipeline, it should here be understood that, although illustrating No. three coil pipe pipelines in the embodiment shown in fig. 1, but it is applied equally to the present invention no less than any number of coil pipe pipeline on a road, these needs are determined according to practical situation, and the present invention is not limited to this; This fan coil units also includes the water feed apparatus being in fluid communication with each entrance of above-mentioned No. three coil pipe pipelines (that is: a road coil pipe pipeline, b road coil pipe pipeline and n road coil pipe pipeline), in other words, three entrances of a road coil pipe pipeline of this fan coil units, b road coil pipe pipeline and n road coil pipe pipeline are respectively connecting to water feed apparatus, or its three entrances first converge to a pipeline, then this converge after a pipeline and water feed apparatus fluid communication; Additionally, this fan coil units also includes the discharging device of the communication with all above-mentioned coil pipe pipelines 7. Similar with water feed apparatus, this air intake installation can directly with the connection of each entrance of a road coil pipe pipeline, b road coil pipe pipeline and n road coil pipe pipeline; Or this air intake installation can also connect with each entrance of a road coil pipe pipeline, b road coil pipe pipeline and n road coil pipe pipeline indirectly, that is: each entrance of a road coil pipe pipeline, b road coil pipe pipeline and n road coil pipe pipeline first converges to a pipeline, then this air intake installation of this pipeline communication.
Wherein, water feed apparatus is provided with eduction valve 6 and on exhaust apparatus, is provided with intake valve 4, and eduction valve 6 and intake valve 4 optionally synchronize can be turned on and off based on surface cooler temperature. Such as, in a temperature range set, eduction valve 6 and intake valve 4 all remain off, and the water being arranged in coil pipe pipeline will not be discharged from eduction valve 6; And in the temperature range of another setting, eduction valve 6 is converted to opening from closed mode with intake valve 4 simultaneously, the water being arranged in coil pipe pipeline can be discharged from eduction valve 6, it is achieved the automatic drainage function based on surface cooler temperature of this fan coil. Wherein, eduction valve 6 and intake valve 4 are kept opening and closing simultaneously and can be realized by following embodiment: such as, eduction valve 6 can according to the unlatching of surface cooler temperature control valve and Guan Bi with only one in intake valve 4, and another one connects with its signal or is mechanically connected or electrically connects thus realizing synchronization unlatching and the Guan Bi of the two; For another example, eduction valve 6 and intake valve 4 both can according to the unlatching of surface cooler temperature control valve and Guan Bi, thus realizing unlatching and the Guan Bi of the synchronization of the two. In the fan coil units of the present invention, compared with prior art, fan coil units is provided with and optionally synchronizes, with surface cooler temperature, the eduction valve and the intake valve that are turned on and off, when surface cooler temperature is relatively low, eduction valve and intake valve can be opened simultaneously, realize the self-draining of fan coil and also improve drainage speed simultaneously, thus the coil frost broken preventing the heat exchange coil chance cold junction in fan coil from freezing and causing.
In an optional embodiment, intake valve 4 can be the electric control valve or manual modulation valve that are Tong Bu turned on and off with eduction valve 6. It is understood that intake valve 4 and eduction valve 6 in the present invention are not limited to any one or more valve, any suitable valve all can be applied in the present invention.
Further, as it is shown in figure 1, water feed apparatus has inlet port 1 and outlet, and water inlet 1 is configured to open end, and outlet connects with the entrance of all coil pipe pipelines 7. It is to say, the entrance of all coil pipe pipelines 7 in this fan coil units is communicated to the water supply installation of outside by being configured to the water inlet 1 of the water feed apparatus of open end. Similarly, discharging device has entrance and outlet 2, and outlet 2 is configured to the outlet of open end, entrance and all coil pipe pipelines 7. It is to say, the outlet of all coil pipe pipelines 7 in this fan coil units is communicated to outside water recovery apparatus by being configured to the discharging device outlet 2 of open end.
In the embodiment shown in fig. 1, the water feed apparatus of this fan coil have for carrying the current by pass from the water in coil pipe pipeline 7, eduction valve 6 arranges and is arranged in this current by pass, controls whether to allow to flow out from current by pass from the water in coil pipe pipeline 7 by the unlatching of eduction valve 6 and Guan Bi.
In a preferred embodiment, being provided with flow switch 8 as it is shown in figure 1, also set up in current by pass, this flow switch 8 can selectively open or close eduction valve 6 according to the flow of water in current by pass. Such as, the switch that this flow switch 8 can be configured to connect with flow meter signal and be mechanically connected with eduction valve 6, when effusion meter detects that in current by pass, the flow of water is not zero, flow switch 8 allows eduction valve 6 to stay open so that water continues to discharge to outside; When flow skill detects that in passage, the flow of water is zero, namely when the water in coil pipe pipeline 7 all drains, flow switch 8 drives eduction valve 6 to be automatically switched off. In this embodiment, by arranging flow switch 8 in current by pass, when the water in fan coil drains, flow switch is automatically switched off eduction valve so that system pipeline valve recovers initial condition automatically, it is simple to the recovery of duty during system start-up.
It is further preferred that the current by pass in the fan coil of the present invention can be connected with the bottom flow of water feed apparatus. In such structure, owing to current by pass is arranged on the bottom of water feed apparatus, therefore can be more thorough when draining. Additionally, the discharging device in the fan coil of the present invention also includes air bleeding valve 3, and preferably, air bleeding valve 3 and intake valve 4 are arranged at the top of discharging device. By eduction valve being arranged on the bottom of water feed apparatus and air bleeding valve being arranged on the top of exhaust apparatus so that this fan coil units draining is more thorough, prevent further due to the water of residual and the frost crack pipe that causes in pipeline.
Further, in a preferred embodiment, the fan coil of the present invention also includes the attemperating unit 5 for sensing surface cooler temperature being connected with eduction valve 6 and intake valve 4, as shown in Figure 1, the temperature-sensing probe of attemperating unit 5 is arranged in extraneous air for detecting the temperature of outside, eduction valve 6 electrically connects with this attemperating unit 5 with intake valve 4, when temperature-sensing probe detects surface cooler temperature lower than zero degree, this attemperating unit 5 sends the signal of telecommunication to eduction valve 6 and intake valve 4 makes it open, thus realizing intake valve 4 to carry out draining with eduction valve 6 automatically turning on when temperature is lower than zero degree. certainly, eduction valve 6 and intake valve 4 also can be mechanically connected with attemperating unit 5, when temperature-sensing probe detects surface cooler temperature lower than zero degree, attemperating unit 5 drives eduction valve 6 and intake valve 4 to open by mechanical drives, it is achieved this fan coil Auto-drainage when temperature is lower than zero degree. it should be understood, of course, that the zero degree of indication is only the optional temperature of an embodiment herein, this temperature can be determined according to specifically used situation in other embodiments, and higher than zero degree or be all feasible lower than zero degree, the present invention is not limited to this.
In another preferred embodiment, eduction valve 6 can be configured to the customized valve being made up of metal material, in this embodiment, owing to eduction valve 6 is metal structure valve, therefore can varying with temperature and expand with heat and contract with cold, and can realize when temperature reaches subzero, valve automatically opens up and carries out draining.
Additionally, as it is shown in figure 1, the fan coil according to the present invention also includes the drip tray 9 for accepting the fluid that current by pass flows out.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (11)
1. an anti-freeze type fan coil units, it is characterized in that, the discharging device of the water feed apparatus connected with the entrance of all described coil pipe pipelines (7) including at least one road coil pipe pipeline (7) and the outlet with all described coil pipe pipelines (7)
Wherein, described water feed apparatus has eduction valve (6) and described discharging device is provided with intake valve (4), described eduction valve (6) and described intake valve (4) and optionally synchronizes to be turned on and off with surface cooler temperature.
2. anti-freeze type fan coil units according to claim 1, it is characterized in that, described water feed apparatus has water inlet (1) and outlet, the water inlet (1) of described water feed apparatus is configured to open end and outlet connects with the entrance of all described coil pipe pipelines (7)
Described discharging device has entrance and outlet (2), and the outlet (2) of described discharging device is configured to open end and entrance and the outlet of all described coil pipe pipelines (7).
3. anti-freeze type fan coil units according to claim 1 and 2, it is characterised in that described water feed apparatus has current by pass, and described eduction valve (6) is arranged in described current by pass.
4. anti-freeze type fan coil units according to claim 3, it is characterised in that be additionally provided with flow switch (8) in described current by pass.
5. anti-freeze type fan coil units according to claim 3, it is characterised in that described current by pass connects with the bottom flow of described water feed apparatus.
6. anti-freeze type fan coil units according to claim 1, it is characterized in that, described discharging device also includes air bleeding valve (3), and described air bleeding valve (3) and described intake valve (4) are arranged at the top of described discharging device.
7. anti-freeze type fan coil units according to claim 1, it is characterised in that also include the attemperating unit (5) for sensing described surface cooler temperature being connected with described eduction valve (6) and described intake valve (4).
8. anti-freeze type fan coil units according to claim 7, it is characterised in that described attemperating unit (5) electrically connects with described eduction valve (6) and described intake valve (4) or is mechanically connected.
9. anti-freeze type fan coil units according to claim 1, it is characterised in that described eduction valve (6) is metal structure valve.
10. anti-freeze type fan coil units according to claim 3, it is characterised in that also include the drip tray (9) for accepting the fluid that described current by pass flows out.
11. anti-freeze type fan coil units according to claim 3, it is characterised in that described intake valve (4) is the electric control valve or manual modulation valve that are Tong Bu turned on and off with described eduction valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510896364.7A CN105674394A (en) | 2015-12-04 | 2015-12-04 | Anti-freezing fan coil assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510896364.7A CN105674394A (en) | 2015-12-04 | 2015-12-04 | Anti-freezing fan coil assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105674394A true CN105674394A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510896364.7A Pending CN105674394A (en) | 2015-12-04 | 2015-12-04 | Anti-freezing fan coil assembly |
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| CN (1) | CN105674394A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642543A (en) * | 2016-11-28 | 2017-05-10 | 无锡同方人工环境有限公司 | Combined anti-freezing device of air-conditioning water system in cold region |
| CN107655071A (en) * | 2017-06-21 | 2018-02-02 | 蔡红军 | Kitchen fan coil pipe special |
| CN110986281A (en) * | 2019-11-04 | 2020-04-10 | 珠海格力电器股份有限公司 | Automatic anti-freezing control method for multi-connected cold-hot water heat pump unit and air conditioning system thereof |
| CN113218020A (en) * | 2021-05-19 | 2021-08-06 | 济南朗仕环境科技有限公司 | Automatic temperature control system that opens of intelligent new trend system |
| CN113654131A (en) * | 2021-07-21 | 2021-11-16 | 西臣仕(江苏)空调冷冻设备有限公司 | Combined air treatment unit |
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| JPS6237692A (en) * | 1985-08-12 | 1987-02-18 | Hitachi Ltd | Heat exchanger |
| CN2310956Y (en) * | 1997-04-14 | 1999-03-17 | 刘宗源 | Anti-freezing surface air cooler |
| CN203190860U (en) * | 2013-02-02 | 2013-09-11 | 无锡宇诺冷却设备制造有限公司 | Closed cooling tower inclined anti-freezing heat exchange coil pipe |
| CN203364255U (en) * | 2013-06-09 | 2013-12-25 | 青岛奥利凯中央空调有限公司 | Anti-freezing fan coil |
| CN203837233U (en) * | 2014-02-28 | 2014-09-17 | 广东美的暖通设备有限公司 | Coil heat exchanger and fan coil unit |
| CN205505191U (en) * | 2015-12-04 | 2016-08-24 | 任春雷 | Type fan coil subassembly prevents frostbite |
-
2015
- 2015-12-04 CN CN201510896364.7A patent/CN105674394A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237692A (en) * | 1985-08-12 | 1987-02-18 | Hitachi Ltd | Heat exchanger |
| CN2310956Y (en) * | 1997-04-14 | 1999-03-17 | 刘宗源 | Anti-freezing surface air cooler |
| CN203190860U (en) * | 2013-02-02 | 2013-09-11 | 无锡宇诺冷却设备制造有限公司 | Closed cooling tower inclined anti-freezing heat exchange coil pipe |
| CN203364255U (en) * | 2013-06-09 | 2013-12-25 | 青岛奥利凯中央空调有限公司 | Anti-freezing fan coil |
| CN203837233U (en) * | 2014-02-28 | 2014-09-17 | 广东美的暖通设备有限公司 | Coil heat exchanger and fan coil unit |
| CN205505191U (en) * | 2015-12-04 | 2016-08-24 | 任春雷 | Type fan coil subassembly prevents frostbite |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642543A (en) * | 2016-11-28 | 2017-05-10 | 无锡同方人工环境有限公司 | Combined anti-freezing device of air-conditioning water system in cold region |
| CN107655071A (en) * | 2017-06-21 | 2018-02-02 | 蔡红军 | Kitchen fan coil pipe special |
| CN110986281A (en) * | 2019-11-04 | 2020-04-10 | 珠海格力电器股份有限公司 | Automatic anti-freezing control method for multi-connected cold-hot water heat pump unit and air conditioning system thereof |
| CN110986281B (en) * | 2019-11-04 | 2021-02-02 | 珠海格力电器股份有限公司 | Automatic anti-freezing control method for multi-connected cold-hot water heat pump unit and air conditioning system thereof |
| CN113218020A (en) * | 2021-05-19 | 2021-08-06 | 济南朗仕环境科技有限公司 | Automatic temperature control system that opens of intelligent new trend system |
| CN113654131A (en) * | 2021-07-21 | 2021-11-16 | 西臣仕(江苏)空调冷冻设备有限公司 | Combined air treatment unit |
| CN113654131B (en) * | 2021-07-21 | 2023-02-14 | 西臣仕(江苏)空调冷冻设备有限公司 | Combined air treatment unit |
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Application publication date: 20160615 |