CN204115509U - Based on the air conditioner cooling tower system in half-closed space - Google Patents

Abstract

The utility model discloses a kind of air conditioner cooling tower system based on half-closed space, comprise half-closed space and many group cooling tower groups, described half-closed space is provided with the vertical ventilating shaft sending into air to half-closed space, described many group cooling tower groups are arranged along half-closed interior volume periphery, cooling tower in each cooling tower group is equipped with the blower fan for extracting air in half-closed space and the cooling tower exhaust tube for discharging hot blast, each cooling tower group is equipped with the cooling tower air exhaust box to described half-closed outside uniform effluent hot blast, the cooling tower exhaust tube of each cooling tower group is all communicated with described cooling tower air exhaust box.Should have based on the air conditioner cooling tower system in half-closed space to avoid cooling tower to enter air draft short circuit, can improve the advantage of cooling tower operational efficiency.

Description

Air-conditioning cooling tower system based on semi-closed space

technical field

The utility model mainly relates to the field of heating, ventilating and air-conditioning, in particular to an air-conditioning cooling tower system based on a semi-closed space.

Background technique

The cooling tower is an important part of the HVAC system. Its function is to exchange heat between the circulating water carrying waste heat and the air in the tower, transfer the heat of the water to the air and disperse it into the atmosphere, and cool down the circulating water. The operating performance of the cooling tower directly affects the cooling and heating effect of the air conditioning system.

Factors that affect the operation performance of cooling towers include air wet bulb temperature, air flow, water volume, cooling tower layout, etc. Among them, the location and method of cooling tower layout are one of the key factors that affect the performance of cooling towers. Once the cooling tower is unreasonably arranged, it will lead to back mixing of hot and humid air, which will seriously affect the operating performance of the cooling tower. Therefore, in order to reduce the back-mixing of hot and humid air in cooling towers, cooling towers are usually placed outdoors with good ventilation, such as the roof or the ground, and the air outlets and air inlets are required to be unobstructed.

However, if the cooling tower is placed on the roof or on the ground, it will generate a lot of noise and affect the overall appearance of the building. In recent years, people have paid more and more attention to the urban environment, and cooling towers are increasingly placed in relatively closed spaces such as special refrigeration rooms near the outer wall or building transfer floors; in addition, with the increase in the construction area of single buildings Increasingly, the number of cooling towers required is increasing. When a large number of cooling towers are arranged in a semi-closed space, the following problems will be caused: 1. The hot and humid air generated by the heat exchange between air and circulating water cannot be discharged from the semi-closed space well, and the back-mixing rate of hot and humid air 2. The operation of the cooling tower group interferes with each other, the air intake and exhaust of the cooling tower are short-circuited, and the exhaust air is not smooth; 3. The air intake of the cooling tower near the air inlet of the semi-closed space is too large, and the cooling tower in the middle of the semi-closed space The air intake volume of the tower is too small, it is difficult to determine the type of cooling tower fan, and the operating efficiency of the cooling tower is low. These problems prevent cooling towers from operating efficiently under rated conditions, which directly affects the cooling and heating effects of the entire air conditioning system.

At present, the layout of outdoor cooling towers is based solely on engineering experience, and a good cooling effect has been achieved. However, if the layout of the cooling tower group in the semi-closed space is based solely on engineering experience and the layout design method of the outdoor cooling tower group is used, the operating performance of some cooling towers will deteriorate, thereby affecting the performance of the entire air conditioner. Therefore, it is necessary Find another arrangement scheme of cooling towers in a semi-closed space and an optimization scheme to improve the operation performance of cooling towers.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an air-conditioning cooling tower system based on a semi-closed space that can avoid the short circuit of the air intake and exhaust of the cooling tower and can improve the operating efficiency of the cooling tower.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

An air-conditioning cooling tower system based on a semi-closed space, including a semi-closed space and multiple groups of cooling towers, the semi-closed space is provided with a vertical air shaft that sends air into the semi-closed space, and the multiple Groups of cooling towers are set along the inner periphery of the semi-closed space. The cooling towers in each cooling tower group are equipped with fans for extracting air from the semi-closed space and cooling tower exhaust ducts for discharging hot air. Each cooling tower group Each is provided with a cooling tower exhaust box that uniformly discharges hot air to the outside of the semi-closed space, and the cooling tower exhaust ducts of each cooling tower group are connected with the cooling tower exhaust box.

As a further improvement of the above technical solution:

A cooling tower exhaust muffler is arranged in the cooling tower exhaust box.

The cooling tower is provided with a cooling tower demister.

The cooling tower demister is connected to the hot water source of the heat pump chiller.

The semi-closed space is provided with a water supply main pipe and a return water main pipe. The cooling tower is provided with a cooling tower water supply pipe and a cooling tower return water pipe. The cooling tower water supply pipes of each cooling tower are connected to the water supply main pipe in parallel. The cooling tower return pipes of each cooling tower The water pipe is connected in parallel to the return water main.

There are four vertical air shafts, and the four vertical air shafts are respectively arranged at the four corners of the semi-closed space.

Compared with the prior art, the utility model has the advantages of:

The air-conditioning cooling tower system based on the semi-closed space of the utility model is equipped with a vertical air shaft to send air into the semi-closed space in the semi-closed space, which can cool and lower the outside air before flowing into the semi-closed space. Temperature, increase the temperature difference between the heat exchange between air and circulating water in the cooling tower, and improve the operating efficiency of the cooling tower; equipped with a cooling tower exhaust duct and a cooling tower exhaust box, which are used to uniformly discharge the hot and humid air generated after heat exchange , to ensure that the hot and humid air can be smoothly discharged from the semi-closed space, avoiding the return of hot and humid air to the semi-closed space and then entering the cooling tower, avoiding the short circuit of the cooling tower's intake and exhaust air, and also avoiding mutual interference between the operations of the cooling tower group, further improving Cooling tower operating efficiency.

Description of drawings

Fig. 1 is a schematic structural view of the air-conditioning cooling tower system based on the semi-closed space of the present invention.

Each label in the figure means:

1. Semi-closed space; 11. Vertical air shaft; 2. Cooling tower; 21. Cooling tower exhaust duct; 22. Cooling tower exhaust box; 23. Cooling tower exhaust muffler; 24. Cooling tower demister ; 3. Water supply main pipe; 4. Return water main pipe.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 shows the embodiment of the air-conditioning cooling tower system based on the semi-closed space of the present invention. The vertical air shaft 11 that sends air into the semi-closed space 1, and multiple groups of cooling towers are arranged along the inner periphery of the semi-closed space 1, and the cooling towers 2 in each cooling tower group are all equipped with a fan for extracting the air in the semi-closed space 1. Fan and cooling tower exhaust duct 21 for discharging hot air, each cooling tower group is equipped with a cooling tower exhaust box 22 that uniformly discharges hot air to the outside of the semi-closed space 1, the cooling tower exhaust duct 21 of each cooling tower group They are all connected to the cooling tower exhaust box 22. The semi-closed space 1 is provided with a water supply main pipe 3 and a return water main pipe 4. The cooling tower 2 is provided with a cooling tower water supply pipe and a cooling tower return water pipe. The cooling tower water supply pipes of each cooling tower 2 The pipes are connected in parallel to the water supply main pipe 3, and the cooling tower return pipes of each cooling tower 2 are connected in parallel to the return water main pipe 4. The air-conditioning and cooling tower system based on the semi-closed space of the present utility model is provided with a vertical air shaft 11 for sending air into the semi-closed space 1 in the semi-closed space 1, so that outside air can flow into the semi-closed space 1 before Cooling, lowering the temperature, increasing the temperature difference between the heat exchange between the air and the circulating water in the cooling tower 2, and improving the operating efficiency of the cooling tower 2; equipped with a cooling tower exhaust duct 21 and a cooling tower exhaust box 22 for exchanging heat The hot and humid air generated in the end is uniformly discharged to ensure that the hot and humid air can be smoothly discharged from the semi-closed space 1, avoiding the return of the hot and humid air to the semi-closed space 1 and then entering the cooling tower 2, avoiding the short circuit of the cooling tower 2, and also avoiding The operation of the cooling tower group is prevented from interfering with each other, and the operating efficiency of the cooling tower 2 is further improved.

In this embodiment, a cooling tower exhaust muffler 23 is provided inside the cooling tower exhaust box 22 to reduce the noise generated by the hot and humid air flowing in the cooling tower exhaust box 22 . The cooling tower 2 is equipped with a cooling tower demister 24, which is connected to the hot water source of the heat pump chiller, and when the ambient temperature is low, the cooling tower demister 24 is started to heat the hot and humid air, which can avoid the cooling tower exhaust box 22 exits produce white mist.

In this embodiment, four vertical air shafts 11 are provided, and the four vertical air shafts 11 are respectively arranged at the four corners of the semi-closed space 1, so that the air sent into the semi-closed space 1 can be distributed more evenly. The operating efficiency of each cooling tower group can be operated efficiently under rated working conditions.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art, without departing from the scope of the technical solution of the present utility model, can use the technical content disclosed above to make many possible changes and modifications to the technical solution of the utility model, or modify it into an equivalent change, etc. effective example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical proposal of the present invention. the

Claims (7)

1. the air conditioner cooling tower system based on half-closed space, comprise half-closed space (1) and many group cooling tower groups, it is characterized in that: described half-closed space (1) is provided with the vertical ventilating shaft (11) sending into air to half-closed space (1), described many group cooling tower groups are arranged along half-closed space (1) interior periphery, cooling tower (2) in each cooling tower group is equipped with the blower fan for extracting half-closed space (1) interior air and the cooling tower exhaust tube (21) for discharging hot blast, each cooling tower group is equipped with the cooling tower air exhaust box (22) to the outside uniform effluent hot blast of described half-closed space (1), the cooling tower exhaust tube (21) of each cooling tower group is all communicated with described cooling tower air exhaust box (22).

2. the air conditioner cooling tower system based on half-closed space according to claim 1, is characterized in that: be provided with cooling tower air-discharge silencer (23) in described cooling tower air exhaust box (22).

3. the air conditioner cooling tower system based on half-closed space according to claim 1, is characterized in that: described cooling tower (2) is provided with cooling tower demister (24).

4. the air conditioner cooling tower system based on half-closed space according to claim 3, is characterized in that: described cooling tower demister (24) connects the thermal water source of heat pump handpiece Water Chilling Units.

5. the air conditioner cooling tower system based on half-closed space according to any one of claim 1 to 4, it is characterized in that: in described half-closed space (1), be provided with water main (3) and return main (4), cooling tower (2) is provided with cooling tower feed pipe and cooling tower return pipe, the cooling tower feed pipe of each cooling tower (2) is connected in parallel to water main (3), and the cooling tower return pipe of each cooling tower (2) is connected in parallel to return main (4).

6. the air conditioner cooling tower system based on half-closed space according to any one of claim 1 to 4, is characterized in that: described vertical ventilating shaft (11) is provided with four, and four vertical ventilating shafts (11) are divided into four bights in half-closed space (1).

7. the air conditioner cooling tower system based on half-closed space according to claim 5, is characterized in that: described vertical ventilating shaft (11) is provided with four, and four vertical ventilating shafts (11) are divided into four bights in half-closed space (1).