CN207584922U - A kind of energy-saving type frequency conversion fan coil - Google Patents
A kind of energy-saving type frequency conversion fan coil Download PDFInfo
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- CN207584922U CN207584922U CN201721660016.0U CN201721660016U CN207584922U CN 207584922 U CN207584922 U CN 207584922U CN 201721660016 U CN201721660016 U CN 201721660016U CN 207584922 U CN207584922 U CN 207584922U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model proposes a kind of energy-saving type frequency conversion fan coils, solves the step speed regulation that common fan coil can only carry out high, medium and low third gear, the problem of energy-saving effect is bad, including air-conditioning box, the air-conditioning box is equipped with to the air outlet of indoor blowing and indoor wind is returned to the return air inlet in the air-conditioning box；Chilled water coil in the air-conditioning box, the chilled water coil both ends have been respectively communicated with water inlet pipe and outlet pipe；Air-intaking box at the return air inlet of the air-conditioning box, the air-intaking box is interior to be equipped with centrifugal blower, and the centrifugal blower is driven by direct current variable frequency motor and rotated；DC frequency conversion controller be electrically connected in the air-conditioning box, with the direct current variable frequency motor, the control centrifugal blower velocity of rotation；And in the return air inlet of the air-conditioning box, for sense inlet air temperature signal and to the DC frequency conversion controller send out inductive signal instruction inlet air temperature sensor, reach the energy-saving effect more preferably purpose for making fan coil.
Description
Technical field
The utility model is related to fan coil technical field, more particularly to a kind of energy-saving type frequency conversion fan coil.
Background technology
Fan coil units refer to be mounted in the buildings such as office building, hospital, hotel, restaurant, with Air-Water
Heat exchange circulation system is handled room air temperature, humidity and air quality in a manner of Central Regulation, so as to meet
The end-o f-pipe -control device for the central air conditioner system that people need.
At present, the motor that most of fan coil units use is single-phase ac asynchronous motor, this motor
There are the defects of efficiency is low, power consumption is big, temperature increases, vibration and noise is big, volume is big, weight is heavy and consumptive material is more, especially it is adjusted
Speed can only be carried out the step speed regulation of high, medium and low third gear, best energy-saving effect is not achieved using tapping mode.
Utility model content
The purpose of this utility model is to provide a kind of energy-saving type frequency conversion fan coil, has the advantages that good energy-conserving effect.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of energy-saving type frequency conversion wind
Machine coil pipe, including：Air-conditioning box, the air-conditioning box are equipped with to the air outlet of indoor blowing and return to indoor wind in the air-conditioning box
Return air inlet；Chilled water coil in the air-conditioning box, the chilled water coil both ends have been respectively communicated with water inlet pipe and outlet pipe；
Air-intaking box at the return air inlet of the air-conditioning box, the air-intaking box is interior to be equipped with centrifugal blower, and the centrifugal blower is by direct current
Variable-frequency motor driving rotation；Be electrically connected in the air-conditioning box, with the direct current variable frequency motor, the control centrifugal blower
The DC frequency conversion controller of velocity of rotation；And believe in the return air inlet of the air-conditioning box, for sensing inlet air temperature
Number and to the DC frequency conversion controller send out inductive signal instruction inlet air temperature sensor.
By using above-mentioned technical proposal, indoors one timing of load, it is certain, room to need to the cold blast rate that interior is sent
For interior wind facies for outdoor wind, summer temp is generally relatively low, some indoor wind is returned into air-conditioning box using return air inlet, with a small amount of room
After exogenous wind mixing, interior is sent into after becoming cold wind by the refrigeration of chilled water coil, relative to all with outdoor wind refrigeration wind
For, it can be more effectively energy saving.Be arranged on inlet air temperature sensor at return air inlet be used to sense at return air inlet into wind-warm syndrome
Signal is spent, and inlet air temperature signal designation is sent out to DC frequency conversion controller, DC frequency conversion controller is by the inlet air temperature signal
It is compared with indoor preset temperature value, when inlet air temperature signal designation temperature is more than that indoor preset temperature value is more, direct current
The velocity of rotation of frequency-variable controller control direct current variable frequency motor increases, and air volume is returned so as to increase centrifugal blower；Work as air inlet
When temperature signal instruction temperature is close to indoor preset temperature value, the rotation speed of DC frequency conversion controller control direct current variable frequency motor
Degree slows down, and air volume is returned so as to reduce centrifugal blower；Reaching needs that centrifugal blower is controlled to return air force according to interior
Purpose, compared with the mode of the centrifugal blower definite value return air of common fan coil, energy-saving effect is more preferably.
The further setting of the utility model, the water inlet pipe be equipped be electrically connected with the DC frequency conversion controller,
The ratio adjusting valve of the flow of inlet water aperture in the water inlet pipe is controlled to adjust by the DC frequency conversion controller.
By using above-mentioned technical proposal, inlet air temperature sensor is defeated by the inlet air temperature signal at the return air inlet sensed
Be sent to DC frequency conversion controller, DC frequency conversion controller compares the inlet air temperature signal and indoor preset temperature value, when into
When air temperature signal designation temperature is more than that indoor preset temperature value is more, DC frequency conversion controller control ratio adjusting valve tunes up
The aperture of water inlet pipe so as to increase the inflow of chilled water coil, accelerates refrigeration effect of the chilled water coil to return air；Work as inlet air temperature
When signal designation temperature is close to indoor preset temperature value, DC frequency conversion controller control ratio adjusting valve turns opening for water inlet pipe down
Degree so as to reduce the inflow of chilled water coil, reduces refrigeration effect of the chilled water coil to return air；Reach needs to control according to interior
Valve in the aperture size of ratio adjusting valve, the purpose that indoor temperature is adjusted, with the water inlet pipe of common fan coil
The mode that can only be turned on or off is compared, and energy-saving effect is more preferable.
The further setting of the utility model, the inlet air temperature sensor are thermocouple temperature sensor.
By using above-mentioned technical proposal, thermocouple temperature sensor is become using the resistance value of conductor or semiconductor with temperature
The principle changed and changed carries out thermometric, has performance stabilization, using flexible, high reliability.
The further setting of the utility model, the interior a pair that is equipped with of the air-conditioning box are located at air outlet air-flow flowing respectively
The tube sheet of direction both sides, the chilled water coil is serpentine-like to be arranged between two tube sheets.
By using above-mentioned technical proposal, the serpentine-like structure setting being arranged between two tube sheets of chilled water coil makes cold
The contact area of water coil and return air is larger, also more preferable to the refrigeration effect of return air.
The further setting of the utility model is equipped with along the densely arranged aluminium of air draft direction in the chilled water coil and sticks up
Piece.
By using above-mentioned technical proposal, since aluminium fin has a good heat conductivility in itself, the aluminium in chilled water coil
Fin can further increase the contact area and refrigeration effect with return air.
The further setting of the utility model is equipped with the grid being mounted on the air-conditioning box at the air outlet.
By using above-mentioned technical proposal, the windage of grid is small, makes the air permeability at air outlet good；And attractive appearance,
Design specification gives the modern of whole smoothness and feels.
The further setting of the utility model is equipped with filter screen at the return air inlet of the air-intaking box.
By using above-mentioned technical proposal, filter screen can absorb the dust in return air, reduce the wound that dust brings human body
Evil；It can prevent dust from entering in air-conditioning box simultaneously, influence the velocity of rotation of centrifugal blower and the refrigeration effect of chilled water coil.
The further setting of the utility model, the air-conditioning box lower section is provided with to be condensed for accepting in the chilled water coil
Condensed water drip tray, the drip tray is communicated with drainpipe.
By using above-mentioned technical proposal, the condensation water collection that is generated in chilled water coil process of refrigerastion is on drip tray and leads to
Cross drainpipe discharge.
In conclusion the utility model has the advantages that：
One sets an inlet air temperature sensor at return air inlet, and inlet air temperature sensor is used to sense at return air inlet
Inlet air temperature signal, and send out inlet air temperature signal designation to DC frequency conversion controller, DC frequency conversion controller enters the wind this
Temperature signal is compared with indoor preset temperature value, the velocity of rotation of direct current variable frequency motor is controlled, so as to reach according to indoor need
Centrifugal blower is controlled to return the purpose of air force, compared with common fan coil, energy-saving effect is more preferably；
Secondly, ratio adjusting valve according to indoor temperature needs, by the aperture of DC frequency conversion controller control ratio adjusting valve
Size, and indoor temperature is adjusted, the side that can only be turned on or off with the valve on the water inlet pipe of common fan coil
Formula is compared, and energy-saving effect is more preferable.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model embodiment；
Fig. 2 is the structure diagram after the air-conditioning upper box part of fan coil in the utility model embodiment is partly cut away.
Reference numeral：1st, air-conditioning box；2nd, air outlet；3rd, return air inlet；4th, chilled water coil；
5th, air-intaking box；6th, direct current variable frequency motor；7th, DC frequency conversion controller；8th, inlet air temperature sensor；9th, proportion adjustment
Valve；10th, tube sheet；11st, aluminium fin；12nd, grid；13rd, filter screen；14th, drip tray；15th, drainpipe.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability
Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but
As long as it is all protected in the right of the utility model by Patent Law.
A kind of energy-saving type frequency conversion fan coil as depicted in figs. 1 and 2, including air-conditioning box 1, cold water is equipped in air-conditioning box 1
Coil pipe 4, the both ends of chilled water coil 4 connect respectively with water inlet pipe and outlet pipe, and air-conditioning box 1, which is equipped with, is located at chilled water coil 4 opposite two
The air outlet 2 of side and return air inlet 3, indoor wind are returned in air-conditioning box 1 by return air inlet 3 and after the refrigeration of chilled water coil 4 from going out
Air port 2 is blown out.One timing of load indoors, it is certain to need to the cold blast rate that interior is sent, and indoor wind facies carrys out outdoor wind
It says, summer temp is generally relatively low, returns some indoor wind into air-conditioning box 1 using return air inlet 3, after a small amount of outdoor wind mixing, passes through
The refrigeration of chilled water coil 4 is sent into interior after becoming cold wind, and for the wind that all freezed with outdoor wind, energy-saving effect is more
It is good.
Air-intaking box 5 is provided at the return air inlet 3 of air-conditioning box 1, centrifugal blower is provided in air-intaking box 5, centrifugal blower is by straight
The driving rotation of variable-frequency motor 6 is flowed, is additionally provided on air-conditioning box 1 and is electrically connected with direct current variable frequency motor 6 and centrifugal blower is controlled to rotate
The DC frequency conversion controller 7 of speed is equipped at the return air inlet 3 of air-conditioning box 1 to become for sensing inlet air temperature signal and to direct current
Frequency controller 7 sends out the inlet air temperature sensor 8 of inductive signal instruction.Inlet air temperature sensor 8 will sense at return air inlet 3
Inlet air temperature signal is sent to DC frequency conversion controller 7, and DC frequency conversion controller 7 is preset by the inlet air temperature signal and interior
Temperature value compares, and when inlet air temperature signal designation temperature is more than that indoor preset temperature value is more, DC frequency conversion controller 7 is controlled
The velocity of rotation of direct current variable frequency motor 6 processed increases, and increases the return air amount of centrifugal blower；When inlet air temperature signal designation temperature approaches
During indoor preset temperature value, DC frequency conversion controller 7 controls the velocity of rotation of direct current variable frequency motor 6 to slow down, and reduces centrifugation wind
The return air amount of machine；Achieve the purpose that be needed that centrifugal blower is controlled to return air force, the centrifugation with common fan coil according to interior
The mode of wind turbine definite value return air is compared, and energy-saving effect is more preferably.
Inlet air temperature sensor 8 is thermocouple temperature sensor, and thermocouple temperature sensor utilizes conductor or semiconductor
The principle that resistance value is varied with temperature and changed carries out thermometric, has performance stabilization, using flexible, high reliability.
Grid 12 is installed, the windage of grid 12 is small, makes the air permeability at air outlet 2 good at the air outlet 2 of air-conditioning box 1
It is good；And attractive appearance, design specification give the modern of whole smoothness and feel.
Filter screen 13 is installed, filter screen 13 can absorb the dust in return air, reduce dust at the return air inlet 3 of air-intaking box 5
It brings damage to the human body, while can prevent dust from entering in air-conditioning box 1, influence the velocity of rotation and chilled water coil of centrifugal blower
4 refrigeration effect.
1 lower section of air-conditioning box is provided with the drip tray 14 for accepting the condensed water condensed in chilled water coil 4, and drip tray 14 connects
It is connected with drainpipe 15, the condensation water collection generated in 4 process of refrigerastion of chilled water coil is on drip tray 14 and passes through 15 row of drainpipe
Go out.
The ratio adjusting valve 9 being electrically connected with DC frequency conversion controller 7 is installed, ratio adjusting valve 9 is by direct current on water inlet pipe
The control of frequency-variable controller 7 adjusts the size of the flow of inlet water aperture in water inlet pipe.Inlet air temperature sensor 8 will be at return air inlet 3
The inlet air temperature signal sensed is transported to DC frequency conversion controller 7, and DC frequency conversion controller 7 is by the inlet air temperature signal and room
Interior preset temperature value comparison, when inlet air temperature signal designation temperature is more than that indoor preset temperature value is more, DC frequency-changing
Controller 7 controls ratio adjusting valve 9 to tune up the aperture of water inlet pipe, increases the inflow of chilled water coil 4, it is right to accelerate chilled water coil 4
The refrigeration effect of return air；When inlet air temperature signal designation temperature is close to indoor preset temperature value, DC frequency conversion controller 7 is controlled
Ratio adjusting valve 9 processed turns the aperture of water inlet pipe down, so as to reduce the inflow of chilled water coil 4, reduces chilled water coil 4 to return air
Refrigeration effect；Achieve the purpose that need to control the aperture size of ratio adjusting valve 9 according to interior, indoor temperature be adjusted,
Compared with the mode that the valve on the water inlet pipe of common fan coil can only be turned on or off, energy-saving effect is more preferable.
A pair of tube sheet 10 for being located at 2 air current flow direction both sides of air outlet respectively, chilled water coil 4 are fixed in air-conditioning box 1
Serpentine-like to be arranged between two tube sheets 10, the chilled water coil 4 and the contact area of return air of this structure setting are larger, to return air
Refrigeration effect it is also preferable.
It is equipped in chilled water coil 4 along the densely arranged aluminium fin 11 of air draft direction, since aluminium fin 11 itself is with good
Good heat conductivility, the aluminium fin 11 in chilled water coil 4 can further increase the contact area and refrigeration effect with return air.
The course of work and principle：One inlet air temperature sensor 8 is set at return air inlet 3, and inlet air temperature sensor 8 is used for
The inlet air temperature signal at return air inlet 3 is sensed, and inlet air temperature signal designation, DC frequency-changing are sent out to DC frequency conversion controller 7
Controller 7 compares the inlet air temperature signal and indoor preset temperature value, controls the velocity of rotation and ratio of direct current variable frequency motor 6
The aperture size of example regulating valve 9,4 cooling rate speed of air force and chilled water coil is controlled back so as to reach according to indoor needs
And to the purpose that indoor temperature is adjusted, compared with common fan coil, energy-saving effect is more preferably.
Claims (8)
1. a kind of energy-saving type frequency conversion fan coil, which is characterized in that including：
Air-conditioning box (1), the air-conditioning box (1) return to the air-conditioning box equipped with the air outlet (2) to indoor blowing and by indoor wind
(1) return air inlet (3) in；
Chilled water coil (4) in the air-conditioning box (1), chilled water coil (4) both ends have been respectively communicated with water inlet pipe and have gone out
Water pipe；
Air-intaking box (5) at the return air inlet (3) of the air-conditioning box (1), the air-intaking box (5) is interior to be equipped with centrifugal blower, institute
It states centrifugal blower and rotation is driven by direct current variable frequency motor (6)；
Be electrically connected in the air-conditioning box (1), with the direct current variable frequency motor (6), the control centrifugal blower rotation speed
The DC frequency conversion controller (7) of degree；And
In the return air inlet (3) of the air-conditioning box (1), for sensing inlet air temperature signal and to the DC frequency-changing control
Device (7) processed sends out the inlet air temperature sensor (8) of inductive signal instruction.
2. a kind of energy-saving type frequency conversion fan coil according to claim 1, which is characterized in that the water inlet pipe be equipped with
The DC frequency conversion controller (7) electrical connection, by the DC frequency conversion controller (7) control to adjust in the water inlet pipe into
The ratio adjusting valve (9) of water flow aperture.
A kind of 3. energy-saving type frequency conversion fan coil according to claim 2, which is characterized in that the inlet air temperature sensor
(8) it is thermocouple temperature sensor.
4. a kind of energy-saving type frequency conversion fan coil according to claim 1, which is characterized in that set in the air-conditioning box (1)
There is a pair of tube sheet (10) for being located at the air outlet (2) air current flow direction both sides respectively, the chilled water coil (4) is serpentine-like to wear
Between two tube sheets (10).
5. a kind of energy-saving type frequency conversion fan coil according to claim 4, which is characterized in that on the chilled water coil (4)
It is equipped with along the densely arranged aluminium fin (11) of air draft direction.
6. a kind of energy-saving type frequency conversion fan coil according to claim 1, which is characterized in that set at the air outlet (2)
There is the grid (12) on the air-conditioning box (1).
7. a kind of energy-saving type frequency conversion fan coil according to claim 1, which is characterized in that the air-intaking box (5) is returned
Filter screen (13) is installed at air port (3).
8. a kind of energy-saving type frequency conversion fan coil according to claim 1, which is characterized in that below the air-conditioning box (1)
The drip tray (14) for accepting the condensed water condensed in the chilled water coil (4) is provided with, the drip tray (14) is communicated with
Drainpipe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660016.0U CN207584922U (en) | 2017-12-04 | 2017-12-04 | A kind of energy-saving type frequency conversion fan coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660016.0U CN207584922U (en) | 2017-12-04 | 2017-12-04 | A kind of energy-saving type frequency conversion fan coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207584922U true CN207584922U (en) | 2018-07-06 |
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ID=62735289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721660016.0U Active CN207584922U (en) | 2017-12-04 | 2017-12-04 | A kind of energy-saving type frequency conversion fan coil |
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| CN (1) | CN207584922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686378A (en) * | 2019-09-29 | 2020-01-14 | 珠海格力电器股份有限公司 | Fan coil adjusting device, fan coil and adjusting method thereof |
-
2017
- 2017-12-04 CN CN201721660016.0U patent/CN207584922U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686378A (en) * | 2019-09-29 | 2020-01-14 | 珠海格力电器股份有限公司 | Fan coil adjusting device, fan coil and adjusting method thereof |
| CN110686378B (en) * | 2019-09-29 | 2020-09-22 | 珠海格力电器股份有限公司 | Fan coil adjusting device, fan coil and adjusting method thereof |
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