CN205505191U - Type fan coil subassembly prevents frostbite - Google Patents
Type fan coil subassembly prevents frostbite Download PDFInfo
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- CN205505191U CN205505191U CN201521009560.XU CN201521009560U CN205505191U CN 205505191 U CN205505191 U CN 205505191U CN 201521009560 U CN201521009560 U CN 201521009560U CN 205505191 U CN205505191 U CN 205505191U
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Abstract
The utility model provides a type fan coil subassembly prevents frostbite, including at least all the way coil pipe pipeline, with the water installations of the entry intercommunication of all coil pipe pipelines and with the play water installation of the export intercommunication of all coil pipe pipelines, wherein, water installations has the drain cock and is provided with the admission valve and go out the water installation, drain cock and admission valve are followed outside surface cooler temperature optionally and are opened in step or close. The utility model provides a fan coil subassembly of the water during enough automatic evacuation is managed when temperature is lower to prevent fan coil frost crack under the condition of seing aside winter.
Description
Technical field
This utility model 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 uses central air conditioner system.During central air conditioner system is installed and is used, 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, bypasses air through after cold water (hot water) coil pipe cooled (heating), to keep the constant of room temperature.Generally, new wind sends into indoor, to meet the needs of air-conditioned room resh air requirement after being processed by Fresh air handling units.
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, after temperature is down to below zero centigrade, either 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 bigger to furred ceiling and indoor equipment, item spoilage.
Prior art antifreeze fan coil drain valve is hand-operated valve, operates, artificially judges water discharge time by manually carrying out.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 has air intake installation, causes the water discharge in coil pipe slowly or to stop, it is impossible to realizing truly is antifreeze.
Utility model content
For problem present in correlation technique, the purpose of this utility model be to provide a kind of can when temperature is relatively low the anti-freeze type fan coil units of the water in automatic-discharging pipe, with bursting by freezing in the case of preventing fan coil idle in the winter time.
For achieving the above object, this utility model provides a kind of anti-freeze type fan coil units, the water feed apparatus connected with the entrance of all coil pipe pipelines including at least No. one coil pipe pipeline and the discharging device of 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 this utility model, 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 the outlet of open end and entrance and all coil pipe pipelines.
According to this utility model, water feed apparatus has current by pass, and eduction valve is arranged in current by pass.
According to this utility model, current by pass is additionally provided with flow switch.
According to this utility model, current by pass connects with the bottom flow of water feed apparatus.
According to this utility model, exhaust apparatus also includes air bleeding valve, and air bleeding valve and intake valve are arranged at the top of discharging device.
According to this utility model, fan coil units also includes the attemperating unit for sensing surface cooler temperature being connected with eduction valve and intake valve.
According to this utility model, attemperating unit electrically connects with eduction valve and intake valve or is mechanically connected.
According to this utility model, eduction valve is metal structure valve.
According to this utility model, fan coil units also includes the drip tray for accepting the fluid that current by pass flows out.
According to this utility model, intake valve is the electric control valve or manual modulation valve being Tong Bu turned on and off with eduction valve.
The beneficial effects of the utility model are:
In anti-freeze type fan coil units of the present utility model, 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 can be opened with intake valve simultaneously, also improve drainage speed while realizing the Auto-drainage of fan coil, thus prevent the heat exchange coil in fan coil from meeting cold junction and freeze and the coil frost broken that causes；
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 further due to the water of residual and the frost crack pipe that causes in pipeline；
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 shows the axonometric chart of an embodiment according to anti-freeze type fan coil units of the present utility model.
Detailed description of the invention
Now according to specific embodiment, this utility model is described.Fig. 1 shows the schematic diagram of an embodiment according to fan coil of the present utility model.
In the embodiment shown in fig. 1, this fan coil units includes No. three coil pipe pipelines 7, as best shown in scheme, it is respectively a road coil pipe pipeline, b road coil pipe pipeline and n road coil pipe pipeline, it should here be understood that, although showing No. three coil pipe pipelines in the embodiment shown in fig. 1, but it is applied equally to this utility model no less than any number of coil pipe pipeline on a road, depending on this needs according to practical situation, this utility model 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, a pipeline after then this converges is in fluid communication with water feed apparatus；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 each entrance with a road coil pipe pipeline, b road coil pipe pipeline and n road coil pipe pipeline connect 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 the most synchronize can be turned on and off based on surface cooler temperature.Such as, within the temperature range of setting at one, eduction valve 6 all remains off with intake valve 4, and being positioned at the water in coil pipe pipeline will not discharge from eduction valve 6；And within the temperature range of another sets, eduction valve 6 is converted to opening from closed mode with intake valve 4 simultaneously, being positioned at the water in coil pipe pipeline can discharge 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 and only one in intake valve 4 can be according to the unlatching of surface cooler temperature control valve and Guan Bis, and another one connects with its signal or is mechanically connected or electrically connects thus realize synchronization unlatching and the Guan Bi of the two；For another example, eduction valve 6 and intake valve 4 both according to the unlatching of surface cooler temperature control valve and Guan Bi, thus can realize unlatching and the Guan Bi of the synchronization of the two.In fan coil units of the present utility model, 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 can be opened with intake valve simultaneously, also improve drainage speed while realizing the Auto-drainage of fan coil, thus prevent the heat exchange coil in fan coil from meeting cold junction and freeze and the coil frost broken that causes.
In an optional embodiment, intake valve 4 can be the electric control valve or manual modulation valve being Tong Bu turned on and off with eduction valve 6.It is understood that intake valve 4 and eduction valve 6 in this utility model are not limited to any one or more valve, any suitable valve all can be applied in this utility model.
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, this flow switch 8 can be configured to the switch connecting with flow meter signal and being mechanically connected with eduction valve 6, and when during effusion meter detects 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, i.e. when the water in coil pipe pipeline 7 has drained, 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 fan coil of the present utility model 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 fan coil of the present utility model 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, fan coil of the present utility model 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 the temperature for detecting outside, eduction valve 6 electrically connects with this attemperating unit 5 with intake valve 4, when temperature-sensing probe detects surface cooler temperature less than zero degree, this attemperating unit 5 sends the signal of telecommunication to eduction valve 6 and intake valve 4 makes it open, thus realize intake valve 4 and carry out draining with eduction valve 6 automatically turning on when temperature is less 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 less than zero degree, attemperating unit 5 drives eduction valve 6 to open with intake valve 4 by mechanical drives, it is achieved this fan coil Auto-drainage when temperature is less than zero degree.It should be understood, of course, that the zero degree of indication is only the optional temperature of an embodiment herein, depending on this temperature can be according to specifically used situation in other embodiments, higher than zero degree or less than zero degree be all feasible, this utility model 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 vary 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, also include the drip tray 9 for accepting the fluid that current by pass flows out according to fan coil of the present utility model.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (11)
1. an anti-freeze type fan coil units, it is characterised in that include at least No. one coil pipe pipeline
(7) entrance with all described coil pipe pipelines (7) connects water feed apparatus and with all institutes
State the discharging device of the outlet of coil pipe pipeline (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) optionally synchronize out with surface cooler temperature
Open or close.
Anti-freeze type fan coil units the most according to claim 1, it is characterised in that described in enter
Water device has water inlet (1) and outlet, and the water inlet (1) of described water feed apparatus is configured to open wide
End and outlet connect with the entrance of all described coil pipe pipelines (7),
Described discharging device has entrance and outlet (2), the outlet (2) of described discharging device
It is configured to the outlet of open end and entrance and all described coil pipe pipelines (7).
Anti-freeze type fan coil units the most according to claim 1 and 2, it is characterised in that institute
Stating water feed apparatus and have current by pass, described eduction valve (6) is arranged in described current by pass.
Anti-freeze type fan coil units the most according to claim 3, it is characterised in that described in let out
Circulation road is additionally provided with flow switch (8).
Anti-freeze type fan coil units the most according to claim 3, it is characterised in that described in let out
Circulation road connects with the bottom flow of described water feed apparatus.
Anti-freeze type fan coil units the most according to claim 1, it is characterised in that described in go out
Water device also includes air bleeding valve (3), and described air bleeding valve (3) and described intake valve (4) are all provided with
Put the top at described discharging device.
Anti-freeze type fan coil units the most according to claim 1, it is characterised in that also include
Be connected with described eduction valve (6) and described intake valve (4) for sensing described surface cooler temperature
Attemperating unit (5).
Anti-freeze type fan coil units the most according to claim 7, it is characterised in that described temperature
Control device (5) electrically connects with described eduction valve (6) and described intake valve (4) or is mechanically connected.
Anti-freeze type fan coil units the most according to claim 1, it is characterised in that described in let out
Stream valve (6) is metal structure valve.
Anti-freeze type fan coil units the most according to claim 3, it is characterised in that also wrap
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 being Tong Bu turned on and off with described eduction valve (6) or manually adjusts
Joint valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009560.XU CN205505191U (en) | 2015-12-04 | 2015-12-04 | Type fan coil subassembly prevents frostbite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009560.XU CN205505191U (en) | 2015-12-04 | 2015-12-04 | Type fan coil subassembly prevents frostbite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205505191U true CN205505191U (en) | 2016-08-24 |
Family
ID=56720257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521009560.XU Active CN205505191U (en) | 2015-12-04 | 2015-12-04 | Type fan coil subassembly prevents frostbite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205505191U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674394A (en) * | 2015-12-04 | 2016-06-15 | 任春雷 | Anti-freezing fan coil assembly |
| CN107179011A (en) * | 2017-05-15 | 2017-09-19 | 珠海格力电器股份有限公司 | Freeze box and water heater |
-
2015
- 2015-12-04 CN CN201521009560.XU patent/CN205505191U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674394A (en) * | 2015-12-04 | 2016-06-15 | 任春雷 | Anti-freezing fan coil assembly |
| CN107179011A (en) * | 2017-05-15 | 2017-09-19 | 珠海格力电器股份有限公司 | Freeze box and water heater |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |