CN201034355Y - Large temperature difference draught fan coil pipe - Google Patents
Large temperature difference draught fan coil pipe Download PDFInfo
- Publication number
- CN201034355Y CN201034355Y CNU2007200695858U CN200720069585U CN201034355Y CN 201034355 Y CN201034355 Y CN 201034355Y CN U2007200695858 U CNU2007200695858 U CN U2007200695858U CN 200720069585 U CN200720069585 U CN 200720069585U CN 201034355 Y CN201034355 Y CN 201034355Y
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- China
- Prior art keywords
- water
- heat exchanger
- temperature difference
- fan coil
- air
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- Expired - Lifetime
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Disclosed is a fan-coil unit with a large temperature difference. The component structure comprises a fan, a motor, a box body, a heat exchanger and an air outlet. The heat exchanger is provided with a plurality of cooling pipes and is divided into no more than two circuits. The cooling pipes of each circuit are arranged into at least two rows and are connected in series into a water channel. One end of the water channel is a water inlet and the other end is a water outlet. The water inlet is arranged at a far end of an air flow direction and the water outlet is arranged at a near end of the air flow direction. The utility model increases the length of single water circuit under the condition of water resistance being increased a little. A water flow inside the heat exchanger reversely to the air flow direction from far to near, thus the heat exchange of the water flow and the air is fuller and more complete. Without changing other component structure, the temperature difference of water in and out can reach 7 degree. For the same building load, the water flow of system is reduced, reducing the relative pipeline and equipment configuration, saving the initial investment cost of the project and reducing the electric consumption of the pump of the system.
Description
[technical field]
The utility model relates to a kind of end equipment of central air conditioner system, is a kind of fan coil specifically.
[background technology]
Fan coil is a kind of equipment that utilizes water to carry out heat exchange as refrigerant by heat exchanger and room air, generally is made up of box body, 1 to 4 typhoon machine, 1 to 2 motor, 1 coil pipe, air outlet.Fan coil in the HVAC industry has 5 ℃ of temperature difference designs by 12 ℃ of water outlets of 7 ℃ of water inlets of standard condition at present, the heat exchanger of fan coil adopts the structure of three loop Inlet and outlet waters usually, each loop is arranged by some water pipe being aligneds, respectively there are a water inlet and a delivery port in three loops, cooling water divides three rows to be an angle of 90 degrees and to flow to other end delivery port from an end water inlet with airflow direction abreast, see that Fig. 4 cathetus takes the lead shown in.We found through experiments the bigger Inlet and outlet water temperature difference can bring more benefit, but limited by multiple comprehensive factor, and the modular construction that is difficult to the present fan coil of change reaches the effect that improves the temperature difference.
[summary of the invention]
The purpose of this utility model be to change the fan coil heat exchange device cooling water the flow direction and reach the effect that improves the temperature difference, make that the heat exchange of current and air is more abundant, thus saves energy.
The technical solution of the utility model is: a kind of big temperature difference fan coil, and modular construction comprises blower fan, motor, box body, heat exchanger, air outlet, arranges several cooling water pipes in the heat exchanger and is divided into no more than two loops; It is characterized in that the cooling water pipe in each loop is arranged in two rows at least and is connected into a water channel, an end of water channel is a water inlet, and the other end is a delivery port; Water inlet is positioned at the far-end of airflow direction, and delivery port is positioned at the near-end of airflow direction.
By test and on-the-spot application, under the situation that slightly increases water resistance, the extended length in single current loop of the utility model, current are by far away and near and the reverse convection current of airflow direction in the heat exchanger, thereby make that the heat exchange of current and air is more fully thorough, under the condition that does not change other modular constructions, the Inlet and outlet water thermal gradient energy reaches 7 ℃.Its economic benefit is embodied in: (1) can reduce the system water flow to the same building load, thereby reduces corresponding pipeline and equipment configuration, has saved the initial outlay expense of engineering project for the user; (2) reduce discharge relatively, thereby can reduce system's water pump power consumption.
[description of drawings]
Fig. 1 is the utility model fan coil pipe structure outline drawing.
Fig. 2 is the heat exchanger structure schematic diagram of fan coil.
Fig. 3 is a water loop structural representation in the heat exchanger of the present utility model.
Fig. 4 is the heat exchanger water loop structural representation of existing fan coil.
[specific embodiment]
Be described further below in conjunction with embodiment of the present utility model and accompanying drawing.
Consult Fig. 1 to big temperature difference fan coil shown in Figure 3, comprise 1,1 to 2 motors 2 of 1 to 4 typhoon machine, 3,1 heat exchanger 4 of box body, air outlet 5, these assemblies and existing fan coil are basic identical, and present embodiment has been continued to use these structures, are convenient to combine and apply with prior art.Characteristics of the present utility model are to arrange several cooling water pipes in the heat exchanger and be divided into no more than two loops that the cooling water pipe in each loop is arranged in two rows at least and is connected into a water channel.Present embodiment adopts three drainpipes to be connected into two S shape loops, forms two water channels, shown in Fig. 3 middle polyline is taken the lead.One end of water channel be water inlet 7 and 7 ', the other end be delivery port 8 and 8 '; Water inlet 7 and 7 ' be positioned at the far-end of airflow direction, delivery port 8 and 8 ' be positioned at the near-end of airflow direction, the water channel in two current loops converges into a water channel (as shown in Figure 2) at in-out end.Cooling water can by 6 ℃ advance, 13 ℃ go out, keep 7 ℃ of temperature difference.
Below be the test comparison data of this fan coil and existing fan coil:
| National normal value | Existing fan coil | Big temperature difference fan coil | |
| Cold W | 3600 | 3708 | 3665 |
| Discharge L/H | / | 652 | 460 |
Under the situation that the cold value remains unchanged substantially, the discharge of this fan coil reduces many, obtains many benefits thus.
Claims (1)
1. one kind big temperature difference fan coil, modular construction comprises blower fan, motor, box body, heat exchanger, air outlet, arranges in the heat exchanger that several cooling water pipes also are divided into no more than two loops; It is characterized in that the cooling water pipe in each loop is arranged in two rows at least and is connected into a water channel, an end of water channel is a water inlet, and the other end is a delivery port; Water inlet is positioned at the far-end of airflow direction, and delivery port is positioned at the near-end of airflow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200695858U CN201034355Y (en) | 2007-04-29 | 2007-04-29 | Large temperature difference draught fan coil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200695858U CN201034355Y (en) | 2007-04-29 | 2007-04-29 | Large temperature difference draught fan coil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201034355Y true CN201034355Y (en) | 2008-03-12 |
Family
ID=39195246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200695858U Expired - Lifetime CN201034355Y (en) | 2007-04-29 | 2007-04-29 | Large temperature difference draught fan coil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201034355Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846463A (en) * | 2010-04-14 | 2010-09-29 | 付长智 | Self-service circulating temperature exchange machine |
| CN101825313B (en) * | 2009-09-18 | 2013-03-06 | 何宏瑜 | Energy-saving constant-humidity low-temperature coil device |
| CN110230845A (en) * | 2018-03-02 | 2019-09-13 | 江苏雅佳空调设备制造有限公司 | Ultrathin low-noise fan coil pipe unit |
-
2007
- 2007-04-29 CN CNU2007200695858U patent/CN201034355Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825313B (en) * | 2009-09-18 | 2013-03-06 | 何宏瑜 | Energy-saving constant-humidity low-temperature coil device |
| CN101846463A (en) * | 2010-04-14 | 2010-09-29 | 付长智 | Self-service circulating temperature exchange machine |
| CN110230845A (en) * | 2018-03-02 | 2019-09-13 | 江苏雅佳空调设备制造有限公司 | Ultrathin low-noise fan coil pipe unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080312 |
|
| CX01 | Expiry of patent term |