CN107044680A - Pressure equaliser in cooling, heating system - Google Patents
Pressure equaliser in cooling, heating system Download PDFInfo
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- CN107044680A CN107044680A CN201710295797.6A CN201710295797A CN107044680A CN 107044680 A CN107044680 A CN 107044680A CN 201710295797 A CN201710295797 A CN 201710295797A CN 107044680 A CN107044680 A CN 107044680A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 46
- 238000001816 cooling Methods 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims description 33
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 26
- 239000000243 solution Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims 2
- 239000012080 ambient air Substances 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000003570 air Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
本发明供冷、供热系统中的压力平衡装置涉及节能建筑供冷供热系统。其目的是为了提供一种密封好、系统压力稳定、便于观察、结构简单、成本低的供冷、供热系统中的压力平衡装置。本发明供冷、供热系统中的压力平衡装置，包括连接在管路上的连通管、所述连通管上连接有平衡箱、所述平衡箱的顶端连接有自动泄压阀和自动平衡阀；所述平衡箱内压力升高，所述自动泄压阀打开，所述平衡箱内的气体自动流出；所述平衡箱内压力降低，所述自动平衡阀打开，环境空气自动向所述平衡箱流动。
The pressure balance device in the cooling and heating system of the invention relates to an energy-saving building cooling and heating system. The purpose is to provide a pressure balance device in cooling and heating systems with good sealing, stable system pressure, easy observation, simple structure and low cost. The pressure balance device in the cooling and heating system of the present invention includes a communication pipe connected to the pipeline, a balance box is connected to the communication pipe, and an automatic pressure relief valve and an automatic balance valve are connected to the top of the balance box; When the pressure in the balance box rises, the automatic pressure relief valve opens, and the gas in the balance box flows out automatically; when the pressure in the balance box decreases, the automatic balance valve opens, and the ambient air automatically flows into the balance box flow.
Description
技术领域technical field
本发明涉及节能建筑供冷供热系统，特别是涉及一种供冷、供热系统中的压力平衡装置。The invention relates to an energy-saving building cooling and heating system, in particular to a pressure balance device in the cooling and heating system.
背景技术Background technique
节能建筑是遵循气候、节能和建筑结构的基本原理设计的低能耗建筑，为住户提供舒适、环保、节能的空间。节能建筑的供冷、供热系统，受供冷、供热过程特性的影响，环境温度变化会影响管路内流体的压力变化，进而影响管路的完全和稳定性。Energy-saving buildings are low-energy buildings designed in accordance with the basic principles of climate, energy conservation and building structure, and provide residents with comfortable, environmentally friendly and energy-saving spaces. The cooling and heating systems of energy-saving buildings are affected by the characteristics of the cooling and heating processes. Changes in ambient temperature will affect the pressure changes of the fluid in the pipeline, which in turn will affect the integrity and stability of the pipeline.
在供热系统的管路系统中，由于管路中的液体温度变化会导致其体积发生变化，而液体的体积发生微小变化时会导致管路系统的压力发生重大变化，甚至会让管路系统无法承受而破裂。In the pipeline system of the heating system, the volume of the liquid in the pipeline will change due to the change of temperature, and a small change in the volume of the liquid will cause a major change in the pressure of the pipeline system, and even make the pipeline system Unbearable and broken.
通常的供热系统的解决方案是设置一个膨胀水箱，膨胀水箱中会有一个较大的空气囊，通过空气囊的收缩、膨胀来平衡管路内气压变化。但是，当管路系统中的液体温度升高而体积变大时，多余的液体进入膨胀水箱从而压缩水箱中空气的体积，水箱中的空气压强随着占用体积缩小而增大，但变化幅度比较小，管路系统可以承受这样的压强变化。反之，当管路系统中的液体温度降低时，其体积缩小，液体从膨胀水箱回流到管路系统中。The usual solution for the heating system is to set up an expansion tank, in which there will be a larger air bag, and the air pressure change in the pipeline will be balanced by the contraction and expansion of the air bag. However, when the temperature of the liquid in the pipeline system increases and the volume becomes larger, the excess liquid enters the expansion tank to compress the volume of the air in the tank, and the air pressure in the tank increases as the occupied volume shrinks, but the range of change is relatively small. Small, the piping system can withstand such pressure changes. Conversely, when the temperature of the liquid in the piping system decreases, its volume shrinks and the liquid flows back from the expansion tank into the piping system.
上述方案中，管路系统的压力变化在可控范围内，就需要维持一个大型膨胀水箱和相应的补水系统，而通常的住宅供暖系统中，往往不具备安置大型膨胀水箱的空间。In the above solution, if the pressure change of the pipeline system is within a controllable range, it is necessary to maintain a large expansion tank and a corresponding water supply system. However, in the usual residential heating system, there is often no space for a large expansion tank.
在新型节能建筑中，采用热泵供热供冷，同一管路需兼顾冬天供热和夏天供冷的功能，为了解决管路中溶液的防冻问题，同时避免热泵反复启动，管路内不能再采用传统的乙二醇溶液。采用其他溶液进行供冷、供暖，一般溶液都具有一定挥发性，现有的膨胀水箱不能承受溶液挥发导致的压力的变化、不能保证管路系统的密封性能。In new energy-saving buildings, heat pumps are used for heating and cooling. The same pipeline needs to take into account the functions of heating in winter and cooling in summer. Traditional glycol solution. Other solutions are used for cooling and heating. Generally, the solutions have certain volatility. The existing expansion tank cannot withstand the pressure change caused by the volatilization of the solution, and cannot guarantee the sealing performance of the pipeline system.
发明内容Contents of the invention
本发明要解决的技术问题是提供一种密封好、系统压力稳定、便于观察、结构简单、成本低的供冷、供热系统中的压力平衡装置。The technical problem to be solved by the present invention is to provide a pressure balance device in cooling and heating systems with good sealing, stable system pressure, easy observation, simple structure and low cost.
本发明供冷、供热系统中的压力平衡装置，包括连接在管路上的连通管、所述连通管上连接有平衡箱、所述平衡箱的顶端连接有自动泄压阀和自动平衡阀；所述平衡箱内压力升高，所述自动泄压阀打开，所述平衡箱内的气体自动流出；所述平衡箱内压力降低，所述自动平衡阀打开，环境空气自动向所述平衡箱流动。The pressure balance device in the cooling and heating system of the present invention includes a communication pipe connected to the pipeline, a balance box is connected to the communication pipe, and an automatic pressure relief valve and an automatic balance valve are connected to the top of the balance box; When the pressure in the balance box rises, the automatic pressure relief valve opens, and the gas in the balance box flows out automatically; when the pressure in the balance box decreases, the automatic balance valve opens, and the ambient air automatically flows into the balance box flow.
本发明供冷、供热系统中的压力平衡装置，其中所述平衡箱上设有液位计。The pressure balance device in the cooling and heating system of the present invention, wherein the balance box is provided with a liquid level gauge.
本发明供冷、供热系统中的压力平衡装置，其中所述液位计连接在控制系统上，所述控制系统上连接有警报装置。In the pressure balance device in the cooling and heating system of the present invention, the liquid level gauge is connected to a control system, and an alarm device is connected to the control system.
本发明供冷、供热系统中的压力平衡装置，其中所述控制系统上连接有显示器。The pressure balance device in the cooling and heating system of the present invention, wherein the control system is connected with a display.
本发明供冷、供热系统中的压力平衡装置，其中所述显示器设为液晶显示器。In the pressure balance device in the cooling and heating system of the present invention, the display is a liquid crystal display.
本发明供冷、供热系统中的压力平衡装置，其中所述平衡箱上连接有注水口。The pressure balance device in the cooling and heating system of the present invention, wherein the balance box is connected with a water injection port.
本发明供冷、供热系统中的压力平衡装置，其中所述管路内填充的溶液为乙醇溶液，所述平衡箱内注入乙醇溶液。In the pressure balance device in the cooling and heating system of the present invention, the solution filled in the pipeline is ethanol solution, and the ethanol solution is injected into the balance tank.
本发明供冷、供热系统中的压力平衡装置，其中所述自动泄压阀和所述自动平衡阀设为气管单向阀。The pressure balance device in the cooling and heating system of the present invention, wherein the automatic pressure relief valve and the automatic balance valve are set as air pipe check valves.
本发明供冷、供热系统中的压力平衡装置与现有技术不同之处在于：本发明供冷、供热系统中的压力平衡装置，包括连接在管路上的连通管、连通管上连接有平衡箱、平衡箱的顶端连接有自动泄压阀和自动平衡阀；供暖过程中，乙醇溶液受热膨胀，平衡箱内液面上升、压力升高，压力增大到高压临界值时，自动泄压阀打开，平衡箱内的气体自动流出；供暖结束或供冷过程中，乙醇溶液降温收缩，平衡箱内液面降低、压力降低，压力降低至低压临界值时，自动平衡阀打开，环境空气向自动平衡阀施压且流入平衡箱；整个过程安全环保，泄压过程排出的气体既不污染环境，又能保证管路内压力平衡，符合节能建筑环保、节能的理念。The pressure balance device in the cooling and heating system of the present invention is different from the prior art in that the pressure balancing device in the cooling and heating system of the present invention includes a connecting pipe connected to the pipeline, and a connecting pipe connected to the connecting pipe. The balance box and the top of the balance box are connected with an automatic pressure relief valve and an automatic balance valve; during the heating process, the ethanol solution is heated and expanded, the liquid level in the balance box rises, the pressure rises, and when the pressure increases to the high pressure critical value, the pressure is automatically released When the valve is opened, the gas in the balance box will flow out automatically; at the end of heating or during the cooling process, the ethanol solution will cool down and shrink, the liquid level in the balance box will drop, and the pressure will drop. When the pressure drops to the low pressure critical value, the automatic balance valve will open and the ambient air will The automatic balance valve applies pressure and flows into the balance box; the whole process is safe and environmentally friendly, and the gas discharged during the pressure relief process does not pollute the environment, but also ensures the pressure balance in the pipeline, which is in line with the concept of energy-saving building environmental protection and energy saving.
下面结合附图对本发明的供冷、供热系统中的压力平衡装置作进一步说明。The pressure balance device in the cooling and heating system of the present invention will be further described below in conjunction with the accompanying drawings.
附图说明Description of drawings
图1为本发明供冷、供热系统中的压力平衡装置的结构示意图。Fig. 1 is a structural schematic diagram of the pressure balance device in the cooling and heating system of the present invention.
附图标注：1、连通管；2、平衡箱；3、注水口；4、自动泄压阀；5、自动平衡阀；6、液位计；7、控制系统；8、显示器；9、警报装置。Drawings: 1. Connecting pipe; 2. Balance box; 3. Water injection port; 4. Automatic pressure relief valve; 5. Automatic balance valve; 6. Liquid level gauge; 7. Control system; 8. Display; 9. Alarm device.
具体实施方式detailed description
节能建筑相对于传统建筑更加节能、环保、健康，因此，节能建筑将供热管路改为供冷、供热管路，为了解决传统建筑供热管路有毒的问题，将管路内有毒的乙二醇溶液改进为无毒的乙醇溶液，使管路内的溶液更加健康环保。基于乙醇溶液易挥发的特性，本发明供冷、供热系统中的压力平衡装置，在保证管路密封性能的基础上，保证管路内的压力平衡和稳定运行。Compared with traditional buildings, energy-saving buildings are more energy-saving, environmentally friendly, and healthier. Therefore, energy-saving buildings change heating pipelines into cooling and heating pipelines. In order to solve the problem of toxic heating pipelines in traditional buildings, toxic The ethylene glycol solution is improved to a non-toxic ethanol solution, which makes the solution in the pipeline more healthy and environmentally friendly. Based on the volatile characteristics of ethanol solution, the pressure balance device in the cooling and heating system of the present invention can ensure the pressure balance and stable operation in the pipeline on the basis of ensuring the sealing performance of the pipeline.
如图1所示，本发明供冷、供热系统中的压力平衡装置，包括连接在管路上的连通管1、连通管1上连接有平衡箱2、平衡箱2的顶端连接有自动泄压阀4和自动平衡阀5。平衡箱2、连通管1等耐压结构均选用不锈钢材料，提高装置的强度和耐压能力。As shown in Figure 1, the pressure balance device in the cooling and heating system of the present invention includes a communication pipe 1 connected to the pipeline, a balance box 2 connected to the communication pipe 1, and an automatic pressure relief device connected to the top of the balance box 2 Valve 4 and automatic balancing valve 5. The pressure-resistant structures such as the balance box 2 and the connecting pipe 1 are all made of stainless steel to improve the strength and pressure-resistant capacity of the device.
供暖过程中，乙醇溶液受热膨胀，平衡箱2内液面上升、压力升高，压力增大到高压临界值时，自动泄压阀4打开，平衡箱2内的气体自动排出；供暖结束或供冷过程中，乙醇溶液降温收缩，平衡箱2内液面降低、压力降低，压力降低至低压临界值时，自动平衡阀5打开，环境空气向自动平衡阀5施压，环境空气流入平衡箱2。通过自动泄压阀4和自动平衡阀5配合作用，既能在压力升高时，迅速稳定泄压，还能在压力降低时，及时填充气体，保证管路内压力均衡；平衡箱2泄压时，排出的气体通过自动泄压阀4流出，当平衡箱2内压力降低时，环境空气自动流入平衡箱2内，整个过程安全环保，泄压过程排出的气体既不污染环境，又能保证管路内压力平衡，符合节能建筑环保、节能的理念。During the heating process, the ethanol solution is heated and expands, the liquid level in the balance box 2 rises, and the pressure rises. When the pressure increases to a high pressure critical value, the automatic pressure relief valve 4 is opened, and the gas in the balance box 2 is automatically discharged; During the cold process, the ethanol solution cools down and shrinks, the liquid level in the balance box 2 decreases, and the pressure decreases. When the pressure drops to the low pressure critical value, the automatic balance valve 5 opens, and the ambient air pressurizes the automatic balance valve 5, and the ambient air flows into the balance box 2 . Through the cooperation of the automatic pressure relief valve 4 and the automatic balance valve 5, it can not only release the pressure quickly and stably when the pressure rises, but also fill the gas in time when the pressure drops to ensure the pressure balance in the pipeline; the balance box 2 releases pressure , the exhausted gas flows out through the automatic pressure relief valve 4, and when the pressure in the balance box 2 decreases, the ambient air automatically flows into the balance box 2. The whole process is safe and environmentally friendly. The pressure balance in the pipeline is in line with the concept of energy-saving building environmental protection and energy saving.
自动泄压阀4和自动平衡阀5均选用气管单向阀，安装简便、成本低、体积小。自动泄压阀4和自动平衡阀5的最小开启压力为10Pa，当自动泄压阀4和自动平衡阀5两端压力差大于10Pa时，平衡箱2自动泄压或进气，对压力变化敏感度高，便于及时调节平衡箱2内压力的变化。Both the automatic pressure relief valve 4 and the automatic balance valve 5 use air pipe check valves, which are easy to install, low in cost and small in size. The minimum opening pressure of the automatic pressure relief valve 4 and the automatic balance valve 5 is 10Pa. When the pressure difference between the two ends of the automatic pressure relief valve 4 and the automatic balance valve 5 is greater than 10Pa, the balance box 2 will automatically release pressure or intake air, which is sensitive to pressure changes. The pressure is high, which is convenient for adjusting the change of the pressure in the balance box 2 in time.
平衡箱2上设有液位计6，液位计6的接口靠近平衡箱2的底端面，液位计6监测平衡箱2内的液位参数，便于工作人员监测到平衡箱2内液位变化时，及时进行应急处理。管路中液体通过管道屏蔽泵循环，使用空气源热泵制冷制热，液位计6可防止管路出现泄漏时液位过低空气倒流进入管路循环损坏空气源热泵和管道屏蔽泵，或者管道内进气导致液位过高，液体从泄压阀喷出。A liquid level gauge 6 is provided on the balance box 2, and the interface of the liquid level gauge 6 is close to the bottom end surface of the balance box 2. The liquid level gauge 6 monitors the liquid level parameters in the balance box 2, so that the staff can monitor the liquid level in the balance box 2 When there is a change, carry out emergency treatment in time. The liquid in the pipeline is circulated through the pipeline shielded pump, and the air source heat pump is used for cooling and heating. The liquid level gauge 6 can prevent the liquid level from being too low when the pipeline leaks. The internal air intake caused the liquid level to be too high, and the liquid was ejected from the pressure relief valve.
液位计6连接到控制系统7上，控制系统7对管路内液位进行监测，控制系统7上设有警报装置9，当液位计6测得的液位高于最高液位设定值或低于最低液位设定值时，警报装置9报警，提醒工作人员及时进行检测处理。控制系统7上还设有显示器8，显示器8设为液晶显示器，液位计6检测的液位数据通过显示器8显示在控制系统7上，便于操作人员直观观察。警报装置9与显示器8相互独立，当警报装置9或显示器8其中一个出现故障时，另外一个还能正常显示或报警，双重保障。The liquid level gauge 6 is connected to the control system 7. The control system 7 monitors the liquid level in the pipeline. The control system 7 is provided with an alarm device 9. When the liquid level measured by the liquid level gauge 6 is higher than the maximum liquid level setting value or lower than the minimum liquid level setting value, the alarm device 9 will give an alarm to remind the staff to carry out detection and processing in time. The control system 7 is also provided with a display 8, the display 8 is a liquid crystal display, and the liquid level data detected by the liquid level gauge 6 is displayed on the control system 7 through the display 8, which is convenient for the operator to observe directly. The alarm device 9 and the display 8 are independent of each other, and when one of the alarm device 9 or the display 8 breaks down, the other one can also display normally or give an alarm, double guarantee.
平衡箱2上还设有注水口3，装置安装后，通过注水口3向平衡箱2内注入乙醇溶液，保证管路内溶液充足；乙醇溶液充注完成后，将注水口3封闭，防止乙醇溶液挥发。The balance box 2 is also provided with a water injection port 3. After the device is installed, inject ethanol solution into the balance box 2 through the water injection port 3 to ensure that the solution in the pipeline is sufficient; after the ethanol solution is filled, the water injection port 3 is closed to prevent ethanol from The solution evaporated.
本发明供冷、供热系统中的压力平衡装置，自动平衡管路内压力，保证管路安全，适应周围环境变化，提高管路的安全性，并且达到环保节能的效果；可以在多个管路上分别设置，对全部管路的压力进行平衡调节，同时，控制系统对整个系统进行监控，安全便捷。The pressure balance device in the cooling and heating system of the present invention automatically balances the pressure in the pipeline, ensures the safety of the pipeline, adapts to changes in the surrounding environment, improves the safety of the pipeline, and achieves the effect of environmental protection and energy saving; The roads are set separately to balance and adjust the pressure of all pipelines. At the same time, the control system monitors the entire system, which is safe and convenient.
以上所述的实施例仅仅是对本发明的优选实施方式进行描述，并非对本发明的范围进行限定，在不脱离本发明设计精神的前提下，本领域普通技术人员对本发明的技术方案作出的各种变形和改进，均应落入本发明权利要求书确定的保护范围内。The above-mentioned embodiments are only descriptions of preferred implementations of the present invention, and are not intended to limit the scope of the present invention. Variations and improvements should fall within the scope of protection defined by the claims of the present invention.
Claims (8)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026316A (en) * | 2019-04-29 | 2019-07-19 | 佛山市南海科日超声电子有限公司 | A kind of micropore atomization device with check valve |
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