CN104833042A - Control method of fan coil reversing valve and fan coil system - Google Patents
Control method of fan coil reversing valve and fan coil system Download PDFInfo
- Publication number
- CN104833042A CN104833042A CN201410049336.7A CN201410049336A CN104833042A CN 104833042 A CN104833042 A CN 104833042A CN 201410049336 A CN201410049336 A CN 201410049336A CN 104833042 A CN104833042 A CN 104833042A
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- valve
- valve port
- fan coil
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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)
- Multiple-Way Valves (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention provides a control method of a fan coil reversing valve and a fan coil system. A three-way valve is arranged on a water inlet pipe of a fan coil, and a four-way valve is arranged at a water outlet pipe of the fan coil. The control method comprises the following steps: conducting a second valve port of the three-way valve and a third valve port of the three-way valve and closing a first valve port of the three-way valve and a third valve port of the three-way valve when the fan coil is changed from a cooling mode to a heating mode; and closing a first valve port of the four-way valve and a third valve port of the four-way valve, conducting a third valve port of the four-way valve and a fourth valve port of the four-way valve, discharging chilled water of the fan coil out of a fourth valve port of the four-way valve, detecting the water outlet pipe temperature T of the fourth valve port of the four-way valve in real time, and conducting the third valve port of the four-way valve and a second valve port of the four-way valve when the water outlet pipe temperature T reaches a first set temperature range. By virtue of the control method of the fan coil reversing valve, a cooling coil and a heating coil are controlled to share the reversing valve of the fan coil; the water in the former state in the coil can be effectively discharged; the loss of the energy caused by offset of the cold and the heat can be reduced.
Description
Technical field
The present invention relates to refrigerating field, particularly relate to a kind of control method and fan coil system of fan coil reversal valve.
Background technology
Existing coil pipe of 4-pipe blower as shown in Figure 1, sharing of hot and cold coil pipe is achieved by triple valve, only a coil pipe 1 is installed in fan coil, cold and hot reversing three-way valve F1, F2 is had between coil pipe 1 and external air-conditioning water pipe, external air-conditioning water pipe is respectively that chilled water goes out 2, chilled water enters water 3, warm water enters 4, warm water goes out 5, the demand of user's heat supply or cooling is met by the adjustment of triple valve, also only F1 or F2 can be installed, the switching of simple cooling, Heating State can be realized with upper type, but when switching for cold-peace Heating State, energy loss is larger.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of control method and fan coil system of fan coil reversal valve, effectively the water of coil pipe inside can be discharged when freezing and heat switching, reducing the loss of cold and hot amount.For achieving the above object, technical scheme of the present invention is as follows:
A kind of control method of fan coil reversal valve, triple valve and cross valve is provided with between fan coil and external air-conditioning water pipe, described triple valve is arranged on the water inlet pipe place of described fan coil, described cross valve is arranged on the water outlet pipe part of described fan coil, first valve port of described triple valve is chilled water inlet, second valve port of described triple valve is hot water inlet, 3rd valve port of described triple valve connects the entrance of described fan coil, first valve port of described cross valve connects the cold-water return pipe of air-conditioner host, second valve port of described cross valve connects the input warm water return pipe of air-conditioner host, the outlet of the 3rd valve port connecting fan coil pipe of described cross valve, described control method comprises the following steps:
When described fan coil turns to heat supply mode by cooling mode, described triple valve action, the second valve port of described triple valve and the 3rd valve port conducting of described triple valve, close between the first valve port of described triple valve and the 3rd valve port of described triple valve;
Described cross valve action, close between first valve port of described cross valve and the 3rd valve port of described cross valve, 3rd valve port of described cross valve and the 4th valve port conducting of described cross valve, the chilled water of described fan coil is discharged from the 4th valve port of described cross valve, the outlet pipe temperature T of the 4th valve port of the described cross valve of real-time detection, when described outlet pipe temperature T reaches the first design temperature scope, the 3rd valve port of described cross valve and the second valve port conducting of described cross valve.
More preferably, also comprise the steps: before the 3rd valve port of described cross valve and the second valve port conducting of described cross valve
After described outlet pipe temperature T reaches described first design temperature scope, then postpone the first Preset Time and close connection between the 3rd valve port of described cross valve and the 4th valve port of described cross valve.
More preferably, described first design temperature scope is that chilled water designs coolant-temperature gage T1 ± 2 DEG C;
Described first Preset Time is 3-5 second.
More preferably, when described fan coil turns to cooling mode by heat supply mode, described triple valve action, closes between the second valve port of described triple valve and the 3rd valve port of described triple valve, the first valve port of described triple valve and the 3rd valve port conducting of described triple valve;
Described cross valve action, close between 3rd valve port of described cross valve and the second valve port of described cross valve, 3rd valve port of described cross valve and the 4th valve port conducting of described cross valve, the hot water of described fan coil is discharged from the 4th valve port of described cross valve, the outlet pipe temperature T of the 4th valve port of the described cross valve of real-time detection, when described outlet pipe temperature T reaches design temperature scope, the 3rd valve port of described cross valve and the first valve port conducting of described cross valve.
More preferably, also comprise the steps: before the 3rd valve port of described cross valve and the first valve port conducting of described cross valve
After described outlet pipe temperature T reaches described second design temperature scope, then postpone the second Preset Time and close connection between the 3rd valve port of described cross valve and the 4th valve port of described cross valve.
More preferably, described second design temperature scope is Hot water system design leaving water temperature T2 ± 2 DEG C;
Described second Preset Time is 3-5 second.
More preferably, the control method of described fan coil reversal valve also comprises exhaust mode, under described exhaust mode, and the 3rd valve port of described cross valve and the 4th valve port conducting of described cross valve.
Also relate to a kind of fan coil system, apply the control method of the fan coil reversal valve of above-mentioned arbitrary technical scheme, triple valve and cross valve is provided with between fan coil and external air-conditioning water pipe, described triple valve is arranged on the water inlet pipe place of described fan coil, described cross valve is arranged on the water outlet pipe part of described fan coil, first valve port of described triple valve is chilled water inlet, second valve port of described triple valve is hot water inlet, 3rd valve port of described triple valve connects the entrance of described fan coil, first valve port of described cross valve connects the cold-water return pipe of air-conditioner host, second valve port of described cross valve connects the input warm water return pipe of air-conditioner host, the outlet of the 3rd valve port connecting fan coil pipe of described cross valve.
The invention has the beneficial effects as follows:
The control method of fan coil reversal valve of the present invention and fan coil system, control the reversal valve that cold and hot coil pipe shares fan coil; Cross valve, according to the outlet pipe pipe temperature state action detected, when changing when between heat supply and cooling, detects water pipe Guan Wen, when Guan Wen reaches the deviation range of design temperature, and cross valve late commutation; Effectively can control the water getting rid of laststate in coil pipe, reduce the counteracting of cold and hot amount and the energy loss that causes.
Accompanying drawing explanation
Fig. 1 is the coil pipe of 4-pipe blower schematic diagram of prior art;
The four-way fan coil schematic diagram that the control method that Fig. 2 is fan coil reversal valve of the present invention controls;
Fig. 3 is the control method control flow schematic diagram of fan coil reversal valve of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the control method of fan coil reversal valve of the present invention and fan coil system are further elaborated.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
As shown in Figure 2, in fan coil system one embodiment of the present invention, fan coil is provided with triple valve F1 and cross valve F2 with being connected between external air-conditioning water pipe, cross valve F1 and cross valve F2 supports the use, triple valve F1 is arranged on the water inlet pipe place of fan coil, cross valve F2 is arranged on the water outlet pipe part of fan coil, the first valve port A of triple valve F1 is chilled water inlet, the second valve port B of triple valve F1 is hot water inlet, the entrance of the 3rd valve port C connecting fan coil pipe of triple valve F1, the first valve port A of cross valve F2 connects the cold-water return pipe of air-conditioner host, the second valve port B of cross valve F2 connects the input warm water return pipe of air-conditioner host, the outlet of the 3rd valve port C connecting fan coil pipe of cross valve F2.
With reference to Fig. 3, the control method of fan coil reversal valve, comprises the following steps:
When fan coil turns to heat supply mode by cooling mode, triple valve F1 action, the second valve port B of triple valve F1 and the 3rd valve port C conducting of triple valve F1, close between the first valve port A of triple valve F1 and the 3rd valve port C of triple valve F1; Cross valve F2 action, close between the first valve port A of cross valve F2 and the 3rd valve port C of cross valve F2, the 3rd valve port C of cross valve F2 and the 4th valve port D conducting of cross valve F2, the chilled water of fan coil is discharged from the 4th valve port D of cross valve F2, the outlet pipe temperature T of the 4th valve port D of real-time detection cross valve F2, when the outlet pipe temperature T of the 4th valve port D of cross valve F2 reaches the first design temperature scope, the 3rd valve port C of cross valve F2 and the second valve port B conducting of cross valve F2.
As a kind of embodiment, also comprise the steps: before the 3rd valve port C of cross valve F2 and the F2 second valve port D conducting of cross valve
After the outlet pipe temperature T of the 4th valve port D of cross valve F2 reaches described first design temperature scope, then postpone the connection between the 3rd valve port C of the first Preset Time closedown cross valve F2 and F2 the 4th valve port D of cross valve.Preferably, the first design temperature scope is that chilled water designs coolant-temperature gage T1 ± 2 DEG C, and the first Preset Time is 3-5 second, preferably 3 seconds.
As a kind of embodiment, when fan coil turns to cooling mode by heat supply mode, triple valve F1 action, closes between the second valve port B of triple valve F1 and the 3rd valve port C of triple valve F1, the first valve port A of triple valve F1 and the 3rd valve port C conducting of triple valve F1;
Cross valve F2 action, close between the 3rd valve port C of cross valve F2 and the second valve port B of cross valve F2, the 3rd valve port C of cross valve F2 and the 4th valve port D conducting of cross valve F2, the hot water of fan coil is discharged from the 4th valve port D of cross valve F2, the outlet pipe temperature T of the 4th valve port D of real-time detection cross valve F2, when the outlet pipe temperature T of the 4th valve port D of cross valve F2 reaches the second design temperature scope, the 3rd valve port C of cross valve F2 and the first valve port A conducting of cross valve F2.
As a kind of embodiment, also comprise the steps: before the 3rd valve port C of cross valve F2 and the first valve port A conducting of cross valve F2
After the outlet pipe temperature T of the 4th valve port D of cross valve F2 reaches the second design temperature scope, then postpone the connection between the 3rd valve port C of the second Preset Time closedown cross valve F2 and the 4th valve port D of cross valve F2.Second design temperature scope is Hot water system design leaving water temperature T2 ± 2 DEG C, and the second Preset Time is 3-5 second, preferably 3 seconds.
As a kind of embodiment, the control method of fan coil reversal valve also comprises exhaust mode, under described exhaust mode, and the 3rd valve port C of cross valve F2 and the 4th valve port D conducting of cross valve F2.
The control method of the fan coil reversal valve of above embodiment and fan coil system, control the reversal valve that cold and hot coil pipe shares fan coil; Cross valve, according to the outlet pipe pipe temperature state action detected, when changing when between heat supply and cooling, detects water pipe Guan Wen, when Guan Wen reaches the deviation range of design temperature, and cross valve late commutation; Effectively can control the water getting rid of laststate in coil pipe, reduce the counteracting of cold and hot amount and the energy loss that causes.One path of four-way change-over valve is used for discharging water, and this road can be used as venting simultaneously, saves the vent valve of conventional wind dish.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. the control method of a fan coil reversal valve, it is characterized in that, triple valve and cross valve is provided with between fan coil and external air-conditioning water pipe, described triple valve is arranged on the water inlet pipe place of described fan coil, described cross valve is arranged on the water outlet pipe part of described fan coil, first valve port of described triple valve is chilled water inlet, second valve port of described triple valve is hot water inlet, 3rd valve port of described triple valve connects the entrance of described fan coil, first valve port of described cross valve connects the cold-water return pipe of air-conditioner host, second valve port of described cross valve connects the input warm water return pipe of air-conditioner host, the outlet of the 3rd valve port connecting fan coil pipe of described cross valve, described control method comprises the following steps:
When described fan coil turns to heat supply mode by cooling mode, described triple valve action, the second valve port of described triple valve and the 3rd valve port conducting of described triple valve, close between the first valve port of described triple valve and the 3rd valve port of described triple valve;
Described cross valve action, close between first valve port of described cross valve and the 3rd valve port of described cross valve, 3rd valve port of described cross valve and the 4th valve port conducting of described cross valve, the chilled water of described fan coil is discharged from the 4th valve port of described cross valve, the outlet pipe temperature T of the 4th valve port of the described cross valve of real-time detection, when described outlet pipe temperature T reaches the first design temperature scope, the 3rd valve port of described cross valve and the second valve port conducting of described cross valve.
2. the control method of fan coil reversal valve according to claim 1, is characterized in that, also comprises the steps: before the 3rd valve port of described cross valve and the second valve port conducting of described cross valve
After described outlet pipe temperature T reaches described first design temperature scope, then postpone the first Preset Time and close connection between the 3rd valve port of described cross valve and the 4th valve port of described cross valve.
3. the control method of fan coil reversal valve according to claim 2, is characterized in that,
Described first design temperature scope is that chilled water designs coolant-temperature gage T1 ± 2 DEG C;
Described first Preset Time is 3-5 second.
4. the control method of fan coil reversal valve according to claim 1, is characterized in that:
When described fan coil turns to cooling mode by heat supply mode, described triple valve action, closes between the second valve port of described triple valve and the 3rd valve port of described triple valve, the first valve port of described triple valve and the 3rd valve port conducting of described triple valve;
Described cross valve action, close between 3rd valve port of described cross valve and the second valve port of described cross valve, 3rd valve port of described cross valve and the 4th valve port conducting of described cross valve, the hot water of described fan coil is discharged from the 4th valve port of described cross valve, the outlet pipe temperature T of the 4th valve port of the described cross valve of real-time detection, when described outlet pipe temperature T reaches the second design temperature scope, the 3rd valve port of described cross valve and the first valve port conducting of described cross valve.
5. the control method of fan coil reversal valve according to claim 4, is characterized in that, also comprises the steps: before the 3rd valve port of described cross valve and the first valve port conducting of described cross valve
After described outlet pipe temperature T reaches described second design temperature scope, then postpone the second Preset Time and close connection between the 3rd valve port of described cross valve and the 4th valve port of described cross valve.
6. the control method of fan coil reversal valve according to claim 5, is characterized in that:
Described second design temperature scope is Hot water system design leaving water temperature T2 ± 2 DEG C;
Described second Preset Time is 3-5 second.
7. the control method of the fan coil reversal valve according to any one of claim 1 to 6, is characterized in that,
Also comprise exhaust mode, under described exhaust mode, the 3rd valve port of described cross valve and the 4th valve port conducting of described cross valve.
8. a fan coil system, application rights requires the control method of the fan coil reversal valve described in any one of 1-7, it is characterized in that:
Triple valve and cross valve is provided with between fan coil and external air-conditioning water pipe, described triple valve is arranged on the water inlet pipe place of described fan coil, described cross valve is arranged on the water outlet pipe part of described fan coil, first valve port of described triple valve is chilled water inlet, second valve port of described triple valve is hot water inlet, 3rd valve port of described triple valve connects the entrance of described fan coil, first valve port of described cross valve connects the cold-water return pipe of air-conditioner host, second valve port of described cross valve connects the input warm water return pipe of air-conditioner host, the outlet of the 3rd valve port connecting fan coil pipe of described cross valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049336.7A CN104833042B (en) | 2014-02-12 | 2014-02-12 | The control method and fan coil system of fan coil reversal valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049336.7A CN104833042B (en) | 2014-02-12 | 2014-02-12 | The control method and fan coil system of fan coil reversal valve |
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| CN104833042A true CN104833042A (en) | 2015-08-12 |
| CN104833042B CN104833042B (en) | 2019-01-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016469A (en) * | 2016-07-05 | 2016-10-12 | 安徽天大电子科技股份有限公司 | Draught fan coil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07239139A (en) * | 1994-02-25 | 1995-09-12 | Daikin Ind Ltd | Air conditioner |
| JP2001208399A (en) * | 2000-01-25 | 2001-08-03 | Ryobi Ltd | Air conditioning system and its operation control method |
| CN102112816A (en) * | 2008-10-29 | 2011-06-29 | 三菱电机株式会社 | Air conditioner |
| CN102422092A (en) * | 2009-05-08 | 2012-04-18 | 三菱电机株式会社 | Air conditioning device |
| CN202485112U (en) * | 2012-01-16 | 2012-10-10 | 卓旦春 | Fan coil system in central air conditioner |
-
2014
- 2014-02-12 CN CN201410049336.7A patent/CN104833042B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07239139A (en) * | 1994-02-25 | 1995-09-12 | Daikin Ind Ltd | Air conditioner |
| JP2001208399A (en) * | 2000-01-25 | 2001-08-03 | Ryobi Ltd | Air conditioning system and its operation control method |
| CN102112816A (en) * | 2008-10-29 | 2011-06-29 | 三菱电机株式会社 | Air conditioner |
| CN102422092A (en) * | 2009-05-08 | 2012-04-18 | 三菱电机株式会社 | Air conditioning device |
| CN202485112U (en) * | 2012-01-16 | 2012-10-10 | 卓旦春 | Fan coil system in central air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016469A (en) * | 2016-07-05 | 2016-10-12 | 安徽天大电子科技股份有限公司 | Draught fan coil |
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| CN104833042B (en) | 2019-01-29 |
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