CN206600911U - A kind of air conditioning cooling water heat recovery system - Google Patents
A kind of air conditioning cooling water heat recovery system Download PDFInfo
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- CN206600911U CN206600911U CN201621269110.9U CN201621269110U CN206600911U CN 206600911 U CN206600911 U CN 206600911U CN 201621269110 U CN201621269110 U CN 201621269110U CN 206600911 U CN206600911 U CN 206600911U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 55
- 239000000498 cooling water Substances 0.000 title claims abstract description 43
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 6
- 239000002918 waste heat Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Abstract
本实用新型涉及一种空调冷却水热回收系统，包括冷水机组、冷却塔、换热器和空调箱组，其特征在于：冷水机组的出水端连通冷却塔的进水端及通过电动水阀连通换热器的进水端，冷却塔的出水端连通冷却水泵的进水端，换热器的出水端之一连通冷却塔的出水端与冷却水泵进水端的连接处，形成热交换循环回路之一；所述空调箱组由若干个空调箱并联构成，换热器的出水端之二连通冷空调箱组的进水端，所述空调箱组的出水端通过循环水泵连通换热器的回水端，构成形成热交换循环回路之二；由二条热交换循环回路构成空调冷却水热回收系统。具有通过对冷水机组的热量进行利用与空调箱的冷水进行热量交换，再把该热量利用到空气处理机或新风处理机发热盘预热的特点。
The utility model relates to an air-conditioning cooling water heat recovery system, which comprises a water chiller, a cooling tower, a heat exchanger and an air conditioning box group, and is characterized in that: the water outlet of the chiller is connected to the water inlet of the cooling tower and is connected to the water inlet through an electric water valve. The water inlet end of the heat exchanger and the water outlet end of the cooling tower are connected to the water inlet end of the cooling water pump, and one of the water outlet ends of the heat exchanger is connected to the connection between the water outlet end of the cooling tower and the water inlet end of the cooling water pump to form a heat exchange loop. 1. The air-conditioning box group is composed of several air-conditioning boxes connected in parallel, the second water outlet of the heat exchanger is connected to the water inlet of the cold air-conditioning box group, and the water outlet of the air-conditioning box group is connected to the return of the heat exchanger through a circulating water pump. The water end constitutes the second heat exchange loop; the air conditioning cooling water heat recovery system is formed by two heat exchange loops. It has the characteristics of using the heat of the chiller to exchange heat with the cold water of the air conditioning box, and then using the heat to preheat the heating plate of the air handler or fresh air handler.
Description
技术领域technical field
本实用新型涉及一种冷却水回收系统，特别是涉及一种空调冷却水热回收系统。属于暖通空调领域技术领域。The utility model relates to a cooling water recovery system, in particular to an air conditioner cooling water heat recovery system. The utility model belongs to the technical field of the heating, ventilating and air-conditioning field.
背景技术Background technique
空调设备是逆卡诺循环的一种应用，通过输入做功，热介质从低温吸热，并到高温放热，达到制冷的效果。Air-conditioning equipment is an application of the reverse Carnot cycle. Through the input of work, the heat medium absorbs heat from low temperature and releases heat to high temperature to achieve the cooling effect.
现有技术中，水冷式集中空调采用冷却塔，通过冷却水将热量散发到空气中，从而达到散热的效果。这种通过冷却水将热量散发到空气中的方式存在如下问题：(1)不能将空调排放的冷热量回收利用，从而导致能源极大浪费。(2)冷热量排放在空气中，容易造成空气污染和温室效应，既不环保也造成了运作成本的增加。In the prior art, the water-cooled central air conditioner adopts a cooling tower to dissipate heat into the air through cooling water, thereby achieving the effect of heat dissipation. This way of distributing heat into the air through cooling water has the following problems: (1) the cold heat discharged from the air conditioner cannot be recycled, resulting in a great waste of energy. (2) Cold and heat are discharged in the air, which is likely to cause air pollution and greenhouse effect, which is neither environmentally friendly nor increases operating costs.
为此，需要提供一种空调冷却水热回收系统。For this reason, it is necessary to provide an air-conditioning cooling water heat recovery system.
实用新型内容Utility model content
本实用新型的目的，是为了解决现有技术通过冷却水将热量散发到空气中的方式存在能源极大浪费、容易造成空气污染和温室效应的问题，提供一种空调冷却水热回收系统。具有节约能源、减少废热排放和保护空气环境的特点。The purpose of this utility model is to provide an air conditioner cooling water heat recovery system in order to solve the problems of great waste of energy, air pollution and greenhouse effect in the existing method of dissipating heat into the air through cooling water. It has the characteristics of saving energy, reducing waste heat emission and protecting the air environment.
本实用新型的目的可以通过采取以下技术方案实现：The purpose of this utility model can be realized by taking the following technical solutions:
一种空调冷却水热回收系统，包括冷水机组、冷却塔、换热器和空调箱组，其结构特点在于：冷水机组的出水端连通冷却塔的进水端及通过电动水阀连通换热器的进水端，冷却塔的出水端连通冷却水泵的进水端，换热器的出水端之一连通冷却塔的出水端与冷却水泵进水端的连接处，形成热交换循环回路之一；所述空调箱组由若干个空调箱并联构成，换热器的出水端之二连通冷空调箱组的进水端，所述空调箱组的出水端通过循环水泵连通换热器的回水端，构成形成热交换循环回路之二；由二条热交换循环回路构成空调冷却水热回收系统。An air-conditioning cooling water heat recovery system, including a chiller, a cooling tower, a heat exchanger and an air-conditioning box group. The water inlet end of the cooling tower is connected to the water inlet end of the cooling water pump, and one of the water outlet ends of the heat exchanger is connected to the connection between the water outlet end of the cooling tower and the water inlet end of the cooling water pump to form one of the heat exchange loops; The air-conditioning box group is composed of several air-conditioning boxes connected in parallel, the second water outlet end of the heat exchanger is connected to the water inlet end of the cold air-conditioning box group, and the water outlet end of the air-conditioning box group is connected to the return water end of the heat exchanger through a circulating water pump. The second heat exchange loop is formed; the air conditioner cooling water heat recovery system is formed by two heat exchange loops.
本实用新型的目的还可以通过采取以下技术方案实现：The purpose of this utility model can also be realized by taking the following technical solutions:
进一步地，所述换热器可以由板式换热器构成。Further, the heat exchanger may be constituted by a plate heat exchanger.
进一步地，所述板式换热器可以由若干波纹形状的换热片叠装后通过夹板、螺栓紧固而成，所述各换热片之间形成薄矩形通道，通过半片进行热量交换。Further, the plate heat exchanger can be formed by stacking several corrugated heat exchange fins and fastening them with splints and bolts. Thin rectangular passages are formed between the heat exchange fins, and heat exchange is performed through half sheets.
进一步地，所述空调箱组可以由2-5台空调箱并联构成。Further, the air-conditioning box group may be composed of 2-5 air-conditioning boxes connected in parallel.
本实用新型具有如下突出的有益效果：The utility model has the following outstanding beneficial effects:
1、本实用新型通过冷水机组的出水端连通冷却塔的进水端及通过电动水阀连通换热器的进水端，冷却塔的出水端连通冷却水泵的进水端，换热器的出水端之一连通冷却塔的出水端与冷却水泵进水端的连接处，形成热交换循环回路之一；所述空调箱组由若干个空调箱并联构成，换热器的出水端之二连通冷空调箱组的进水端，所述空调箱组的出水端通过循环水泵连通换热器的回水端，构成形成热交换循环回路之二；由二条热交换循环回路构成空调冷却水热回收系统；因此能够解决现有技术通过冷却水将热量散发到空气中的方式存在能源极大浪费、容易造成空气污染和温室效应的问题，具有节约能源、减少废热排放和保护空气环境的特点和有益效果。1. The utility model communicates with the water inlet of the cooling tower through the water outlet of the chiller and the water inlet of the heat exchanger through the electric water valve, the water outlet of the cooling tower is connected with the water inlet of the cooling water pump, and the water outlet of the heat exchanger One of the ends is connected to the connection between the water outlet end of the cooling tower and the water inlet end of the cooling water pump to form one of the heat exchange loops; the air conditioning box group is composed of several air conditioning boxes connected in parallel, and the second water outlet end of the heat exchanger is connected to the cold air conditioner The water inlet end of the box group, the water outlet end of the air conditioning box group is connected to the return water end of the heat exchanger through the circulating water pump, forming the second heat exchange cycle loop; the air conditioning cooling water heat recovery system is formed by the two heat exchange cycle loops; Therefore, it can solve the problems of great waste of energy, air pollution and greenhouse effect in the prior art of dissipating heat into the air through cooling water, and has the characteristics and beneficial effects of saving energy, reducing waste heat discharge and protecting the air environment.
2、本实用新型通过电动水阀能够控制分管道一进入换热器的水流量，对热量交换可根据需要随时控制，当不需要加热时可关闭电动水阀，当需要加大换热量时，可调节最大换热量，人工可控，适合各种场合。2. The utility model can control the flow of water entering the heat exchanger through the electric water valve, and the heat exchange can be controlled at any time according to the needs. When heating is not needed, the electric water valve can be closed, and when the heat exchange needs to be increased , adjustable maximum heat transfer, manual controllable, suitable for various occasions.
3、本实用新型具有调配空调冷水与冷水机组的热水进行换热，通过将空调冷却水和原本需要通过冷却塔排走的部分废热有效利用于空气处理机或新风处理机发热盘的预热，降低暖通空调系统的整体能耗的特点。3. The utility model has the ability to deploy the cold water of the air conditioner and the hot water of the chiller for heat exchange, and effectively utilize the cooling water of the air conditioner and part of the waste heat that originally needs to be drained through the cooling tower to preheat the heating plate of the air handler or fresh air handler , features that reduce the overall energy consumption of the HVAC system.
4、本实用新型能够对冷水机组的热量进行利用与空调箱的冷水进行热量交换，再把该热量利用到空气处理机或新风处理机发热盘预热的效果。4. The utility model can use the heat of the chiller to exchange heat with the cold water of the air conditioning box, and then use the heat to preheat the heating plate of the air handler or fresh air handler.
附图说明Description of drawings
图1是本实用新型具体实施例的结构示意图。Fig. 1 is the structural representation of the specific embodiment of the utility model.
具体实施方式detailed description
以下结合附图1及实施例对本实用新型作进一步的详细描述：Below in conjunction with accompanying drawing 1 and embodiment the utility model is described in further detail:
具体实施例1：Specific embodiment 1:
参照图1，本实施例包括冷水机组1、冷却塔3、换热器4和空调箱组，冷水机组1 的出水端连通冷却塔3的进水端及通过电动水阀5连通换热器4的进水端，冷却塔3 的出水端连通冷却水泵2的进水端，换热器4的出水端之一连通冷却塔3的出水端与冷却水泵2进水端的连接处，形成热交换循环回路之一；所述空调箱组由若干个空调箱7 并联构成，换热器4的出水端之二连通冷空调箱组的进水端，所述空调箱组的出水端通过循环水泵6连通换热器4的回水端，构成形成热交换循环回路之二；由二条热交换循环回路构成空调冷却水热回收系统。Referring to Fig. 1, the present embodiment includes a water chiller 1, a cooling tower 3, a heat exchanger 4 and an air-conditioning box group, the water outlet of the chiller 1 is connected to the water inlet of the cooling tower 3 and the heat exchanger 4 is connected through an electric water valve 5 The water inlet of the cooling tower 3 is connected to the water inlet of the cooling water pump 2, and one of the water outlets of the heat exchanger 4 is connected to the connection between the water outlet of the cooling tower 3 and the water inlet of the cooling water pump 2 to form a heat exchange cycle One of the loops; the air-conditioning box group is composed of several air-conditioning boxes 7 connected in parallel, the second water outlet of the heat exchanger 4 is connected to the water inlet of the cold air-conditioning box group, and the water outlet of the air-conditioning box group is communicated through the circulating water pump 6 The return water end of the heat exchanger 4 constitutes the second heat exchange loop; the two heat exchange loops form the air conditioner cooling water heat recovery system.
本实施例中：In this example:
所述换热器4由常规技术的板式换热器构成。所述板式换热器由若干波纹形状的换热片叠装后通过夹板、螺栓紧固而成，所述各换热片之间形成薄矩形通道，通过半片进行热量交换。The heat exchanger 4 is composed of a plate heat exchanger of conventional technology. The plate heat exchanger is formed by stacking several corrugated heat exchange fins and fastening them with splints and bolts. Thin rectangular channels are formed between the heat exchange fins, and heat is exchanged through half sheets.
所述空调箱组由3台空调箱7并联构成。The air-conditioning box group is composed of three air-conditioning boxes 7 connected in parallel.
本实施例的原理如下：The principle of this embodiment is as follows:
参照图1，冷水机组1的冷却水由冷却水输出管道引出后分成两路，分管道之一接至换热器4，分管道之二接至冷却塔3，分管道之一通过换热器4后、分管道之二通过冷却塔3后汇集，并由冷却水泵2加压后进入冷水机组1。Referring to Figure 1, the cooling water of the chiller 1 is led out from the cooling water output pipe and then divided into two paths, one of the sub-pipes is connected to the heat exchanger 4, the second of the sub-pipes is connected to the cooling tower 3, and one of the sub-pipes passes through the heat exchanger After 4, the second sub-pipe passes through the cooling tower 3 and then gathers, and is pressurized by the cooling water pump 2 and then enters the chiller 1.
接至换热器4的分管道之一安装电动水阀5，从而可控制该支路的水流量。本实施例中的换热器4为板式换热器，板式换热器的另一侧为循环水管道，水流依次流经循环水泵6、换热器4、空调箱7的换热盘管附近，再重新回到循环水泵6，形成循环水路。An electric water valve 5 is installed on one of the sub-pipes connected to the heat exchanger 4, so as to control the water flow of the branch. The heat exchanger 4 in this embodiment is a plate heat exchanger, and the other side of the plate heat exchanger is a circulating water pipe, and the water flows through the circulating water pump 6, the heat exchanger 4, and the vicinity of the heat exchange coil of the air conditioning box 7 in sequence. , and then return to the circulating water pump 6 to form a circulating waterway.
当冷水机组1开启时，冷水机组1内的冷凝器余热由冷却水经过冷却塔3和换热器4分别换热散失带走热量。电动水阀5控制通过换热器4的冷却水水量。该部分换热器 4的换热量，继而通过循环水泵6所在的循环水路，将热量送至空调箱7的换热盘管，对空调箱7的空气进行加热。When the chiller 1 is turned on, the waste heat of the condenser in the chiller 1 is lost by the cooling water passing through the cooling tower 3 and the heat exchanger 4 through the heat exchange, and the heat is taken away. The electric water valve 5 controls the amount of cooling water passing through the heat exchanger 4 . The exchanging heat of this part of the heat exchanger 4 is then sent to the heat exchange coil of the air-conditioning box 7 through the circulating water circuit where the circulating water pump 6 is located, and the air in the air-conditioning box 7 is heated.
所涉及的板式换热器是用薄金属板压制成具有一定波纹形状的换热板片，然后叠装，用夹板、螺栓紧固而成的一种换热器。各种板片之间形成薄矩形通道，通过半片进行热量交换。工作流体在两块板片间形成的窄小而曲折的通道中流过。冷热流体依次通过流道，中间有一隔层板片将流体分开，并通过此板片进行换热。板式换热器的结构及换热原理决定了其具有结构紧凑、占地面积小、传热效率高、操作灵活性大、应用范围广、热损失小、安装和清洗方便等特点。The involved plate heat exchanger is a kind of heat exchanger formed by pressing thin metal plates into heat exchange plates with a certain corrugated shape, then stacking them, and fastening them with splints and bolts. Thin rectangular channels are formed between the various plates, and heat exchange is performed through the half plates. The working fluid flows through the narrow and tortuous channel formed between the two plates. The hot and cold fluids pass through the flow channel in turn, and there is an interlayer plate in the middle to separate the fluids, and exchange heat through the plates. The structure and heat transfer principle of the plate heat exchanger determine that it has the characteristics of compact structure, small footprint, high heat transfer efficiency, high operational flexibility, wide application range, small heat loss, and convenient installation and cleaning.
分管道之二通过冷却塔顶部附近的开口进入冷却塔并从冷却塔的底部伸出。通过调节电动水阀，冷水机组的热量如不需要进入换热器，则可直接通过冷却塔进行全面冷却。即热量既可以通过换热器进行利用，如无需利用则可直接在冷却塔消耗。Branch two enters the cooling tower through an opening near the top of the cooling tower and emerges from the bottom of the cooling tower. By adjusting the electric water valve, if the heat of the chiller does not need to enter the heat exchanger, it can be directly cooled by the cooling tower. That is, the heat can be utilized through the heat exchanger, or it can be directly consumed in the cooling tower if it is not used.
分管道之一的伸出端与分管道之二的伸出端相汇合后形成回流管道，回流管道经过冷却水泵后重新进入冷水机组的回流水进水口，水进行循环利用达到国家环保的要求。The protruding end of one of the sub-pipes merges with the protruding end of the second sub-pipe to form a return pipe, which re-enters the return water inlet of the chiller after passing through the cooling water pump, and the water is recycled to meet the national environmental protection requirements.
通过循环水管道在换热器内与分管道之一进行换热取得热量，循环水管道在空调箱 7的发热盘管位置，由于循环水管道内的水温高于空气温度，在空气中释放热量从而对空气进行余热，当发热盘管需要发热时，由于周围的气温高，发热盘管由于与空气的热交换小，从而减少发热盘管的功耗，从而达到节能的效果。Heat is obtained by exchanging heat between the circulating water pipe and one of the sub-pipes in the heat exchanger. The circulating water pipe is at the heating coil position of the air-conditioning box 7. Since the water temperature in the circulating water pipe is higher than the air temperature, heat is released in the air so that The waste heat is applied to the air. When the heating coil needs to generate heat, due to the high ambient temperature, the heat exchange between the heating coil and the air is small, thereby reducing the power consumption of the heating coil, thereby achieving the effect of energy saving.
所述空调箱7为三个，循环水管道的一头分别形成若干分道连接各个空调箱7的排水口，循环水管道的另一头于换热器4伸出后分别进入各个空调箱7后延伸至该换热盘管附近并分别于各个空调箱的排水口处重新驳接，循环水管道除两头具有若干分道外中部形成单一汇流管。系统能够同时配合多个空调箱，调配能力强。There are three air-conditioning boxes 7, one end of the circulating water pipeline forms several lanes to connect the drains of each air-conditioning box 7, and the other end of the circulating water pipeline enters each air-conditioning box 7 after the heat exchanger 4 stretches out and then extends To the vicinity of the heat exchange coil and re-joined at the drains of each air-conditioning box, the circulating water pipe forms a single confluence pipe in the middle except for several lanes at both ends. The system can cooperate with multiple air-conditioning boxes at the same time, and has strong deployment ability.
利用板式换热器进行换热，适合流体之间的换热。The plate heat exchanger is used for heat exchange, which is suitable for heat exchange between fluids.
在实际应用中，从冷水机组1的出水端输出的冷却水支路分两支路，一支接至换热器4，一支接至冷却塔3，两支路汇集后接至冷却水泵2，冷却水支路经过冷却水泵2 加压后进入冷水机组1。接至换热器4的支路上安装电动水阀5，从而可控制该支路的水流量。换热器4的另一侧为循环水管路，水流依次经过循环水泵6、换热器4、空调箱7的换热盘管，再重新回到循环水泵6。In practical applications, the cooling water branch output from the water outlet of the chiller 1 is divided into two branches, one is connected to the heat exchanger 4, the other is connected to the cooling tower 3, and the two branches are connected to the cooling water pump 2 , the cooling water branch enters the chiller 1 after being pressurized by the cooling water pump 2. An electric water valve 5 is installed on the branch connected to the heat exchanger 4, so as to control the water flow of the branch. The other side of the heat exchanger 4 is a circulating water pipeline, and the water flow passes through the heat exchange coils of the circulating water pump 6 , the heat exchanger 4 , and the air-conditioning box 7 in sequence, and then returns to the circulating water pump 6 again.
当冷水机组1开启时，冷凝器的余热通过冷却水经过冷却塔3和换热器4分别换热散失。电动水阀5控制通过换热器4的冷却水水量。该部分换热器4的换热量，继而通过循环水泵6所在的循环水环路，将热量送至空调箱7的换热盘管，对空调箱7的空气进行加热。When the water chiller 1 is turned on, the waste heat of the condenser is lost through heat exchange through the cooling tower 3 and the heat exchanger 4 through the cooling water. The electric water valve 5 controls the amount of cooling water passing through the heat exchanger 4 . The exchanging heat of this part of the heat exchanger 4 is then sent to the heat exchange coil of the air conditioning box 7 through the circulating water loop where the circulating water pump 6 is located, so as to heat the air in the air conditioning box 7 .
具体实施例2：Specific embodiment 2:
本实施实用新型具体实施例2的特点是：所述空调箱组可以由二、四或五台空调箱并联构成。其余同具体实施例1。The feature of embodiment 2 of the utility model is that: the air-conditioning box group can be composed of two, four or five air-conditioning boxes connected in parallel. All the other are with specific embodiment 1.
以上所述,仅为本实用新型较佳的具体实施例,但本实用新型的保护范围并不局限于此,任何熟悉本技术人员在本实用新型揭露的范围内,根据本实用新型技术方案及其实用新型构思加以等同替换或改变,都属于本使用新型的保护范围。The above are only preferred specific embodiments of the utility model, but the scope of protection of the utility model is not limited thereto. Its utility model concept is equivalently replaced or changed, all belong to the scope of protection of this utility model.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524783A (en) * | 2020-12-24 | 2021-03-19 | 江苏盛世华为工程技术有限公司 | An air conditioning cooling water heat recovery system |
| CN114060973A (en) * | 2017-11-29 | 2022-02-18 | 汤姆.阿斯科 | method for air conditioning |
| CN118149398A (en) * | 2024-04-03 | 2024-06-07 | 广东海洋大学 | Double-heat recovery type DOAS air conditioner, system and control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060973A (en) * | 2017-11-29 | 2022-02-18 | 汤姆.阿斯科 | method for air conditioning |
| CN112524783A (en) * | 2020-12-24 | 2021-03-19 | 江苏盛世华为工程技术有限公司 | An air conditioning cooling water heat recovery system |
| CN118149398A (en) * | 2024-04-03 | 2024-06-07 | 广东海洋大学 | Double-heat recovery type DOAS air conditioner, system and control method |
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