The steam engine opened the first industrial revolution , and the world entered a new era of energy utilization . Its principle is Carnot cycle , which is a way of converting thermal energy into mechanical energy. The energy efficiency is always less than 1. Heat pump has opened a new era of energy conservation. Its principle is reverse Carnot cycle , which uses mechanical energy to convert low-temperature thermal energy into high-temperature thermal energy. The energy efficiency is always greater than 1. Heat pumps are one of the best ways to save energy. one. How does
1.GEHP work?
air source gas engine heat pump (hereinafter referred to as GEHP) is an air-conditioning system that uses natural gas as fuel, and uses the gas engine to drive the compressor to operate to form a vapor compression heat pump cycle, thereby realizing cooling/heating. At the same time, the flue gas waste heat and engine waste heat are recycled through the heat exchanger to generate hot water. The hot water flows into the water tank for storage to achieve energy supply regulation. It has high energy utilization efficiency through the cascade utilization of energy and low-temperature exhaust of flue gas. .
2. Can GEHP be used in northern winter?
The answer is yes. GEHP is different from air conditioners. The heating efficiency of air conditioners is not high, and if the temperature is lower than -5℃, the air conditioner will not work. There is no need to worry about GEHP. Blue Flame Hi-tech GEHP has strong low-temperature heating capabilities. It uses engine cylinder water and flue gas to recover waste heat and use it to make domestic hot water or defrost, achieving intelligent heat removal and multiple frost removal. , No frost will not be removed. -30℃ can also meet heating needs.
Moreover, Lanyan Hi-Tech GEHP independently developed the stepless variable frequency adjustment technology to ensure that the unit can automatically adjust the load according to the return water temperature, ensuring safe and reliable operation of the unit.
3. GEHP must be very powerful and consume gas, right?
On the contrary, GEHP is not only powerful, but also very energy-saving. Blue Flame Hi-Tech GEHP uses air energy, supplemented by a small amount of gas, to achieve heating and cooling. It can adjust the load steplessly according to the return water temperature of the system, reducing wasted work. consumption, and the engine waste heat can be recycled and utilized, making the unit run more efficiently.
4. What is the difference between air source heat pump and air conditioner?
Blue Flame Hi-Tech GEHP has the functions of heating and cooling. It uses air energy and is more energy-saving and environmentally friendly. Although the price is a bit more expensive than air conditioners, the GEHP has a service life of up to 15 years. In the long run, using GEHP is cheaper and more affordable than air conditioning; unlike air conditioning, GEHP uses a water system, and the air during heating is more humid and mild, not as dry as air conditioning.
In addition, GEHP can also be used in combination with other equipment. For example, Blue Flame Hi-Tech GEHP can be combined with a radiator to enhance heating capacity; combined with floor heating to improve heating comfort; combined with a coil duct machine to achieve regional cooling in family rooms. heating. It is very convenient and flexible, which is an advantage that air conditioners cannot match.
5. Advantages of GEHP
air source has many advantages, the most basic ones are safety, high efficiency, energy saving, low nitrogen, environmental protection and convenience. The heat pump is a renewable energy source, and the GEHP primary energy utilization rate is as high as 1.5.
(1) Low operating cost : Outstanding energy saving effect, short return period of investment ; Compared with gas boiler , electric water heater and solar water heater , the annual cost is the lowest, and compared with solar water heater (with auxiliary electric heating) It also saves money. It is about 1/3 of the gas water heater and about 1/4 of the electric water heater. The investment can be recovered in the short term.
(2) Stable performance : It is not easily affected by the environment. The product operates all year round and is not easily affected by bad weather such as night, cloudy days, rain and snow. It can achieve 24 hours a day, 365 days a year. Hot water.
(3) Easy installation and transportation : GEHP occupies a small space and is similar in appearance to an air conditioner outdoor unit. It can be directly connected to an insulated water tank or connected to a heating pipe network. It is suitable for high-rise buildings in large and medium-sized cities. For large central power supply Thermal issues are the best option. There is no need for solar collector panels, which reduces the floor space. Used in conjunction with solar hot water equipment, it can reduce the area of solar collector , save a large amount of solar collector floor space, and reduce the volume of the hot water storage tank.
(4) Good safety performance, no hidden dangers : Unlike electric and gas water heaters, it uses indirect heating to exchange heat with water, and there are no safety hazards such as electric leakage or air leakage. The equipment has stable performance, safe operation, and a high degree of automation.
(5) Multi-group combination installation to establish central hot water system : Multiple groups of heat pump units of the same model can be used in parallel to ensure that the entire group of water heaters work in one, meet the peak demand for hot water, and provide guarantee for large amounts of hot water. . When the amount of hot water used is small, you can only use one of the hot water pump units and shut down the others. During maintenance, you can also shut down one of the heat pump units without affecting the other heat pump units that continue to provide hot water.
(6) Realize the automation of system operation : automatic operation, no need to be on duty, comes with a temperature control device and insulation layer, can automatically replenish water, heat, and cut off power, and can provide hot water 24 hours a day. Users can enjoy hot water at any time under any weather conditions.
Compared with ordinary electric heat pumps and gas or coal-fired boilers, GEHP has three obvious advantages:
(1) Due to the recycling of engine cylinder liner waste heat and flue gas waste heat, the system's heat supply and primary energy utilization rate Significantly improved.
(2) Heating/cooling capacity can be adjusted by changing the engine speed, which can more effectively match load changes.
(3) Since GEHP has higher energy utilization efficiency, GEHP consumes less energy and carbon dioxide emits less when meeting the same heat load. Secondly, GEHP also has the advantages of easy defrosting, improved peak and valley balance of electricity and gas, and easy capacity adjustment.
6. Application adaptability
my country has a vast territory and its climate covers cold, warm and tropical areas. According to my country's " Building Climate Zoning Standard " (GB 50178-93), the country is divided into 7 first-level districts and 20 second-level districts. level area. Accordingly, the design and application methods of GEHP should be different in different regions.
(1) For areas with hot summers and cold winters: The climate characteristics of areas with hot summers and cold winters are sultry summers, the average regional temperature in July is 25-30°C, and the number of days with annual average daily temperatures above 25°C is 40-100; winters are wet and cold , the average temperature in January is 0-10℃, and the number of days with the annual average temperature less than 5℃ is 0-90. The daily temperature range is small, the annual rainfall is large, and the sunshine is relatively small. The climate characteristics of these areas are very suitable for the application of GEHP.
(2) For most of Yunnan, Guizhou, southwestern Sichuan, and a small part of southern Tibet: the average January temperature in these areas is 1-13°C, and the number of days with the annual average daily temperature less than 5°C is 0-90. Under such climate conditions, in the past, buildings generally did not have heating equipment. However, in recent years, with the development of modern buildings and the move towards a well-off living standard, people have become increasingly demanding on the built environment for living and working. Therefore, modern buildings and high-end apartments and other buildings in these areas have also begun to install heating systems. Therefore, in this climate condition, the GEHP system is very suitable.
7. The application prospects of GEHP
The application of GEHP is actually very wide, which can be summarized into two points: heating, domestic hot water and industrial use . Regarding the application performance of GEHP, professionals also have a vision: an energy-saving solution for comfortable living; the most basic requirements for a suitable living include: sufficient hot water, fresh air, safe drinking water, and warm in winter and cool in summer.
