CN201672607U - A central air conditioner used in conjunction with the floor radiant cooling system to replace the air supply terminal - Google Patents

Abstract

A central air-conditioning replacement air supply terminal used in conjunction with a floor radiation cooling system, including a replacement air supply port protruding from the floor, a fan coil is arranged on the top of the replacement air supply port, and a partition is used to separate the replacement air supply port from the fan coil unit, and The air outlet of the replacement air supply port and the air outlet of the fan coil are at the same vertical side position; the utility model sends low-humidity fresh air close to the ground into the room through the replacement air supply port located below, and the fan located above the replacement air supply port The coil performs a simple cooling process on the indoor circulating air without dehumidification to supplement the indoor cooling capacity, and can maintain the low humidity of the indoor air near the ground, thus forming a good protection for the floor from the two aspects of the humidity of the air supply and the organization of the airflow. The risk of condensation on the floor is avoided; at the same time, the supplementary cooling capacity through the fan coil can also realize the comfortable control of the indoor temperature and adjust it according to the load change.

Description

A central air conditioner used in conjunction with the floor radiant cooling system to replace the air supply end

technical field

The utility model relates to a central air-conditioning terminal, in particular to a central air-conditioning replacement air-supply terminal used in conjunction with a floor radiation cooling system.

Background technique

The central air conditioner used in conjunction with the floor radiant cooling system to replace the air supply end has to complete three functions: one is to supply indoor fresh air that can meet hygienic requirements; Control the indoor air humidity, especially the indoor air humidity close to the ground to prevent condensation on the floor surface.

The existing central air conditioner used in conjunction with the floor radiant cooling system replaces the air supply end, and its replacement air supply port only has the function of a floor-standing air supply port. When used in conjunction with the floor radiant cooling system, there are the following problems: The cooling load is large, and the cooling capacity of the floor radiant cooling system alone is limited, and the replacement of the air supply terminal must bear insufficient cooling capacity, which requires a large air volume, which far exceeds the hygienic requirement for fresh air entering from the outside In this way, the indoor high-humidity air return air is cooled down, and then mixed with low-humidity fresh air and then sent into the room by the replacement air supply port that only has the function of a floor-type air supply port, although it supplements the cooling capacity of the floor radiant cooling system. Insufficient, but this process increases the humidity of the air supply, which makes it impossible for the central air conditioner to realize the function of controlling the indoor air humidity at the replacement air supply end; at the same time, due to the aesthetics and land occupation requirements, the replacement air supply end can only be designed as a narrow and high The shape of the protruding floor surface makes the supply air flow poorly organized when the above-mentioned required air volume increases, which directly leads to the low-humidity supply air not being sent close to the ground, and the indoor air humidity close to the ground cannot be controlled. Therefore, from the two aspects of air supply humidity and air flow organization, the floor cannot be well protected, resulting in the danger of condensation on the floor.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned prior art, the purpose of this utility model is to provide a central air-conditioning replacement air-supply end used in conjunction with the floor radiant cooling system. Insufficient cooling capacity of fresh air and supplementary radiant floor can also maintain low humidity of the indoor air close to the ground, so from the aspects of supply air humidity and air flow organization, the floor can be well protected and the danger of condensation on the floor can be avoided .

In order to achieve the above object, the technical solution adopted in the utility model is:

A replacement air supply end of a central air conditioner used in conjunction with a floor radiant cooling system, including a replacement air supply port 1 protruding from the floor 11, a fan coil unit 2 is arranged on the top of the replacement air supply port 1, and a space between the replacement air supply port 1 and the fan coil unit 2 Separated by a partition 3, and the air outlet 4 of the replacement air outlet 1 and the air outlet 5 of the fan coil unit 2 are at the same vertical side position.

The fan 10 of the fan coil unit 2 is a three-speed variable speed fan.

The fan 10 of the fan coil unit 2 is an axial flow fan.

The coil 6 of the fan coil 2 and the floor radiant coil manifold 9 of the floor radiant cooling system 8 share the water supply and return pipe 7 .

The central air conditioner used in conjunction with the floor radiant cooling system sends low-humidity fresh air close to the ground into the room through the replacement air outlet 1 at the bottom of the central air conditioner. The simple cooling treatment without dehumidification of the circulating air can not only realize the fresh air that guarantees the hygienic requirements and supplement the insufficient cooling capacity of the radiant floor, but also maintain the low humidity of the indoor air near the ground, thus improving the humidity of the air supply and the air flow. In terms of organization, it forms a good protection for the floor and avoids the danger of condensation on the floor. In addition, the fan 10 of the fan coil unit 2 is a three-speed variable-speed fan, which can realize the flexible adjustment of room temperature, and adapt to the uneven local cooling load that may occur at any time. In addition, the fan 10 is an axial flow fan, so that the outflow of air The flow direction does not change to ensure a good airflow organization, and the fan has small head, low noise and low energy consumption; the coil 6 of the fan coil 2 and the floor radiant coil sub-collector 9 of the floor radiant cooling system 8 share a power supply The water return pipe 7 does not take up extra space.

Description of drawings

Fig. 1 is the main cross-sectional view of the utility model, including part of the fresh air duct.

Fig. 2 is a sectional view along line A-A of Fig. 1, including the floor radiant cooling system partially connected thereto.

Fig. 3 is an assembly sectional view of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in more detail.

As shown in Figure 1 and Figure 2, the replacement air supply end of the central air conditioner used with the floor radiant cooling system includes a replacement air supply port 1 protruding from the floor 11, a fan coil unit 2 is installed on the top of the replacement air supply port 1, and a replacement air supply port 1 It is separated from the fan coil unit 2 by a partition 3, and the air outlet 4 of the replacement air supply port 1 and the air outlet 5 of the fan coil unit 2 are at the same vertical side position, wherein the fan coil unit 2 has a fan 10 and a coil unit 6 , the fan 10 is an axial-flow fan with three-speed variable speed, the air intake port of the fresh air duct 12 protrudes into the replacement air supply port 1, and the coil 6 shares the water supply with the floor radiant coil sub-collector 9 of the floor radiant cooling system 8 Return pipe 7.

As shown in FIG. 3 , the replacement air supply end of the central air conditioner used in conjunction with the floor radiant cooling system is connected to the fresh air fan 13 of the central air conditioner through a fresh air duct 12 .

The working principle of the utility model is: when the fresh air blower 13 of the central air conditioner starts to send the fresh air with low temperature and low humidity to the replacement air supply port 1 through the fresh air duct 12, the fan coil unit 2 located above the replacement air supply port 1 also circulates the indoor air simultaneously. The wind is cooled without dehumidification, so that the fresh air is sent to the room through the air outlet 4 of the replacement air outlet 1, and the air outlet 5 of the fan coil unit 2 sends the indoor circulating air that has only been cooled to the room, and is processed by the fan coil unit 2. The temperature and humidity of the final indoor circulating air are higher than that of the fresh air, and the density will be lower than that of the fresh air sent into the room by the replacement air supply port, and the air outlet 4 of the replacement air supply port 1 and the air outlet 5 of the fan coil unit 2 are on the same vertical side This ensures that the fresh air with low humidity can be sent close to the ground, and basically does not mix with the indoor circulating air, so that the low-humidity fresh air can protect the floor from condensation. In addition, the fan 10 of the fan coil unit 2 is a three-speed variable-speed fan, which can realize the flexible adjustment of the room temperature and adapt to the phenomenon of uneven local cooling load that may occur at any time. The fan 10 is an axial flow fan, so that the flow direction of the outflowing air does not change to ensure a good airflow organization, and the fan has little dust, low noise and low energy consumption; the coil 6 of the fan coil 2 and the floor radiant cooling system 8 The floor radiant coil sub-collectors 9 share the water supply and return pipe 7, and do not take up extra space.

Claims (4)

1. A central air-conditioning replacement air supply end used in conjunction with a floor radiant cooling system, including a replacement air supply port (1) protruding from the floor (11), characterized in that: a fan coil ( 2), replace the air outlet (1) and the fan coil unit (2) with a partition (3), and replace the air outlet (4) of the air outlet (1) and the air outlet (5) of the fan coil unit (2) ) at the same vertical side position. 2. A central air-conditioning replacement air supply terminal for use with a floor radiant cooling system according to claim 1, characterized in that: the fan (10) of the fan coil unit (2) is a three-speed variable-speed fan. 3. A central air-conditioning replacement air supply terminal for use with a floor radiant cooling system according to claim 1, characterized in that: the fan (10) of the fan coil unit (2) is an axial fan. 4. A central air-conditioning replacement air supply terminal for use with a floor radiant cooling system according to claim 1, characterized in that: the coil (6) of the fan coil (2) is connected to the floor radiant cooling system The floor radiant coil sub-collectors (9) of the system (8) share the water supply and return pipes (7). the

Images