CN216844949U

CN216844949U - Energy-efficient heat pump new trend all-in-one

Info

Publication number: CN216844949U
Application number: CN202121982785.9U
Authority: CN
Inventors: 谢剑宁; 冯永坚; 郭锦棠; 邱桂花
Original assignee: Foshan Guangteng New Energy Co ltd
Current assignee: Foshan Guangteng New Energy Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-06-28
Anticipated expiration: 2031-08-23

Abstract

An efficient energy-saving heat pump and fresh air integrated machine comprises a main box body, wherein a partition plate is arranged in the main box body, the main box body is divided into an air inlet channel and a return air channel, an air inlet blower and a return air blower are respectively installed in the air inlet channel and the return air channel in series, an outdoor air inlet and an indoor air outlet are formed in the top of the main box body and are communicated with two ends of the air inlet channel, an indoor return air inlet and an outdoor return air inlet are formed in the top of the main box body and are communicated with two ends of the return air channel, and a compressor is further arranged in the main box body and is connected with an evaporator arranged in the air inlet channel and a condenser arranged in the return air channel through a four-way valve. The utility model has the advantages that: the fresh air system can adsorb energy in the exhaust air through the heat pump system in the ventilation process, so that energy recovery is realized, the fresh air system is used for heat treatment of fresh air, the working energy consumption is reduced, and the working efficiency of the system is improved.

Description

Energy-efficient heat pump new trend all-in-one

Technical Field

The utility model relates to a heat pump specifically is a high-efficient energy-conserving heat pump new trend all-in-one.

Background

The quality of indoor air is affected by various pollutants released by building materials, decorations, furniture, articles, kitchens, toilets and human bodies, and serious pollution can be caused under the condition that fresh air (fresh air) is not introduced into the room. Since indoor pollution is a superposition of indoor and outdoor pollutants, indoor pollution is more serious than outdoor pollution. The more people in the room consume more oxygen, the more CO2, odor and other gases are generated, and the work, study and health are seriously affected by oxygen deficiency and air pollution. Monitoring results show that indoor air pollution is very prominent, the concentration of the pollution indicator CO2 in a certain meeting room and a certain classroom rapidly rises along with time, reaches 0.7 percent and 0.5 percent respectively in 1 hour, 50 minutes and 45 minutes, the meeting room exceeds the national standard by 6 times, and the classroom exceeds by more than 2 times.

The national standard of the existing indoor air quality in China has definite regulations on the concentration of pollutants such as CO2, formaldehyde, ammonia, volatile organic compounds, particulate matters and the like in the air, and long-term research and practice at home and abroad prove that the most economical and effective method for reaching the standard is ventilation, so that the method also provides that adults need to provide fresh air at a rate of 30m3 per hour, and students in middle and primary schools need to provide fresh air at a rate of 19m3 per hour. Considering that the outdoor atmospheric environment is polluted to different degrees, the fresh air needs to be purified. In order to maintain the original indoor temperature during the heating and air-conditioning refrigeration periods, temperature compensation and energy-saving measures are required. Therefore, to meet the standard requirements, a fresh air system consisting of air supply and exhaust, purification treatment, heat recovery and temperature compensation must be established.

In the epidemic period of 2020, experts generally think that increasing indoor fresh air volume and wearing a mask play an important role in preventing cross infection. According to the prediction of the world health organization, the epidemic situation can be like various influenza viruses, and the prevention measures need to be taken in a normalized mode in the next decade. Therefore, in a dense place, people need to take fresh air as an important normalized prevention measure, so that viruses are discharged from the room as soon as possible to prevent concentration accumulation, and the fresh air can also relieve the feeling of suffocation when wearing the mask in a closed environment. At present, the following problems still exist in a fresh air system for treating indoor air pollution and preventing virus cross infection:

1. the central air conditioners of high-level buildings are all provided with fresh air systems, but some central air conditioners are not good enough in operation, and the main problems are that the fresh air volume is insufficient, the purification treatment effect is poor, the energy consumption is high particularly during heating and refrigerating, indoor and outdoor noises are large, ventilation pipelines are difficult to clean and disinfect, and the like.

2. Other public places are less likely to adopt fresh air systems, but schools are the most likely places to adopt. Teenagers are in the future of the country and are in the important stage of learning knowledge and body growth, students concentrate on classrooms for a long time and are key groups of cross infection, and the country has long made clear stipulations on various indexes of the fresh air standard, but the standards cannot meet the requirements due to no major breakthrough on the related technology, so the teenagers are not popularized. In the severe haze period of 2015, a local education department calls for parents, part of schools demonstrate and install fresh air systems, and finally pause due to incapability of reaching standards and other technical problems, so that the existing main problems include the problems of low heat recovery amount, no temperature compensation and the like except that the fresh air amount is seriously insufficient, the air quality is unqualified and the noise exceeds the standard.

3. The fresh air quantity is seriously insufficient. According to the standard, the fresh air volume of a classroom of a primary school is 855m3 per hour, the fresh air volume of a middle school is 950m3, but the air volume of the existing fresh air system is mostly only about 300m3, which is far from each other, and the reason is that the indoor air quality does not reach the standard. The existing fresh air system is a small and complete independent system, if a large-air-volume fan is selected, the volume of related equipment such as a heat exchanger and a filtering purifier is increased due to high air pressure and high noise, and if a plurality of sets of low-noise fresh air systems are selected, the space of the classroom is limited.

4. The indoor air quality does not reach the standard. The fresh air volume is a main factor influencing the indoor air quality, but the large air volume is used for meeting the standard beyond the requirement, so that great cost is paid, and a ventilation replacement mode with high replacement efficiency is adopted in a scientific method. The indoor CO2 concentration standard is used as a comparison condition, the ratio of the standard fresh air volume to the actual fresh air volume is specified as the replacement efficiency of the classroom fresh air, the larger the ratio is, the higher the replacement efficiency of the fresh air system is, the smaller the fresh air volume reaching the air quality standard is, and the great benefits are achieved in reducing noise and saving energy. Research shows that the through type replacement of the fresh air in the classroom uses 30% less fresh air than the common top air outlet and top air return replacement, because under the condition of small air exchange space, part of the outlet air can form short circuit to enter the return air, and the replacement effect is not exerted. The factor that influences replacement efficiency still has the cluster wind and the air leakage of new trend system, because each unit in the current new trend host computer adopts extrusion connection mostly, hardly accomplishes sealedly, and it is indoor that air exhaust and indoor air most probably cluster into or leak into the new trend and return to indoor. And because the air outlet positioned outdoors is closer to the fresh air inlet, part of fresh air can be mixed. Above condition all can all influence the replacement efficiency of new trend system to different extents, need bigger fresh air volume just can reach standard.

5. The heat recovery amount is small. The heat exchanger mode is mostly adopted in the current new trend system exhaust heat recovery, and the heat exchange efficiency who detects under specific conditions is higher, nevertheless receives the volume space restriction in view of in the new fan, and the heat exchange efficiency of in-service use can not exceed 50%. In the aspect of heat recovery, less exhaust air is caused by air leakage, so that the heat recovery is less, and the heat loss is increased because the replacement efficiency is low and the air volume needs to be increased. In summary, the heat recovery efficiency of the existing fresh air system cannot represent the heat recovery amount, and the actually recovered and exerted heat amount is much less than 50%.

6. Most of the existing classroom fresh air systems have no temperature compensation. According to the existing fresh air system, the influence of the temperature reduction of 1-2 ℃ on the room temperature is not great, if the air quantity is increased by 2 times or even more according to the standard air quantity, the room temperature is obviously reduced, heat is required to be provided for temperature compensation, so that the equipment is increased, the volume is increased, the cost and the energy consumption are increased, and therefore, the air quantity needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming that prior art exists, providing a simple structure, convenient to use can realize energy recuperation, reduces the energy consumption of work a high-efficient energy-conserving heat pump new trend all-in-one.

The utility model discloses the purpose is realized with following mode: an efficient energy-saving heat pump and fresh air integrated machine comprises a main box body, wherein a partition plate is arranged in the main box body, the main box body is divided into an air inlet channel and a return air channel, an air inlet blower and a return air blower are respectively installed in the air inlet channel and the return air channel in series, an outdoor air inlet and an indoor air outlet are arranged at the top of the main box body, two ends of the air inlet channel are communicated with the air inlet channel, an indoor return air inlet and two ends of the return air channel are communicated with the outdoor return air inlet, a compressor is further arranged on the main box body, the compressor is connected with an evaporator arranged in the air inlet channel through a four-way valve and is connected with a condenser arranged in the return air channel, a bypass channel which is communicated with each other is further arranged between the indoor return air inlet and the outdoor return air inlet, and an electric control valve is arranged in the bypass channel, so that the bypass channel can be closed and opened.

The electric control valve comprises a valve plate and a driving motor, the valve plate is hinged in the side channel, the driving motor is arranged outside the side channel, and the control system controls the opening and closing of the side channel by controlling the driving motor.

The air inlet duct and the air return duct are internally provided with filter screens, and the filter screens are arranged in the air duct in a triangular shape.

The main box body is internally provided with a relatively independent control box and a press box, the electric control system is arranged in the control box, and the compressor is arranged in the press box.

The filter screen is a HEPA and active carbon composite screen.

The utility model has the advantages that: 1. simple structure, low production cost and improved market competitiveness. 2. The fresh air system can adsorb the energy in the exhaust air through the heat pump system in the process of realizing ventilation, thereby realizing energy recovery and being used for the heat treatment of the fresh air, thereby reducing the working energy consumption and improving the working efficiency of the system.

Drawings

Fig. 1 and 2 are schematic diagrams of the structure behind the hidden side plate of the present invention.

Fig. 3 is the structure schematic diagram of the hidden side plate and the top plate of the present invention.

Fig. 4 is the structure schematic diagram of the hidden side plate, the top plate and the baffle of the present invention.

Fig. 5 is a schematic view of the structure of the middle bypass channel of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. An efficient energy-saving heat pump fresh air all-in-one machine comprises a main box body 1, a partition plate 2 is arranged in the main box body 1, the main box body 1 is divided into an air inlet channel 3 and a return air channel 4, an air inlet blower 5 and a return air blower 6 are respectively installed in the air inlet channel 3 and the return air channel 4 in series, an outdoor air inlet 7 and an indoor air outlet 8 are arranged at the top of the main box body 1 and are communicated with two ends of the air inlet channel 3, an indoor return air inlet 9 and an outdoor return air inlet 10 are further arranged at the top of the main box body 1 and are communicated with two ends of the return air channel 4, a compressor 11 is further arranged in the main box body 1, the compressor 11 is connected with an evaporator 13 arranged in the air inlet channel 3 through a four-way valve 12 and is connected with a condenser 14 arranged in the return air channel 4, a bypass channel 15 communicated with each other is further arranged between the indoor return air inlet 9 and the outdoor return air inlet 10, and an electric control valve is arranged in the bypass channel 15, the closing and opening of the bypass channel 15 is achieved.

The electric control valve comprises a valve plate 16 which is hinged in the bypass passage 15 and a driving motor 17 which is arranged outside the bypass passage 15, and the control system controls the opening and closing of the bypass passage 15 by controlling the driving motor 17.

A filter screen 18 is arranged in the air inlet duct 3 and the air return duct 4, and the filter screen 18 is arranged in the air duct in a triangular shape.

The main box body 1 is internally provided with a relatively independent control box 19 and a press box 20, an electric control system 21 is arranged in the control box 19, and the compressor 11 is arranged in the press box 20.

The filter screen 18 is a HEPA and active carbon composite screen.

The working principle is as follows: when being installed, the all-in-one machine in the scheme can be used by being connected with each air port through a pipeline. When the system works, outdoor air is filled into a room through the air inlet duct through the work of the blower, and indoor air is discharged outwards through the air return duct, so that the inside and outside circulation of air is realized, and the freshness of indoor air is ensured.

The indoor temperature needs to be regulated, so that the fresh air system is required to have a refrigerating or heating function, the indoor air temperature is kept stable at a set value, and the comfort level of a human body is improved.

When the integrated machine needs to heat, the four-way valve switches the flow direction of a refrigerant of the compressor, so that the evaporator 13 heats, and the condenser 14 absorbs heat. Wherein, because the temperature of room air is higher than ambient temperature, if direct with the outside discharge of room air, will certainly lead to the fact the heat waste, consequently, condenser 14 in this case can follow the return air of return air duct, absorbs outside exhaust air heat, and after the conversion of compressor, is used for the evaporimeter heating with corresponding heat to promote the inlet air temperature, make the room temperature rise.

Correspondingly, when the all-in-one machine needs to refrigerate, the four-way valve switches the flow direction of the refrigerant of the compressor, so that the evaporator 13 refrigerates, and the condenser 14 carries out heat dissipation operation. Because the temperature of the indoor air is lower than the ambient temperature, if the indoor cold air is directly discharged outwards, energy waste can be caused, and therefore the condenser 14 can quickly dissipate heat through the cold air in the air return duct, the temperature of the condenser is reduced, and energy circulation is achieved.

Wherein, it is required to be noted that: when the indoor return air temperature is not enough to dissipate heat or absorb heat, the bypass valve in the scheme is opened, so that partial ambient air entering from the air inlet duct enters the return air duct through the bypass duct, heat exchange is carried out on a condenser in the return air duct, and the refrigerating or heating capacity of the system is guaranteed. The opening and closing of the bypass channel and the opening and closing size of the bypass channel can be allocated and controlled by the control system to enable the system to achieve the optimal use state.

In the present case, the ingenious carries out effectual combination with new trend system and heat pump system, when new trend system realized the circulation of indoor outer air flow, the surplus heat of make full use of air inlet and return air carries out the allotment of temperature, and make full use of used heat resource is favorable to reducing the energy consumption, improves air conditioning system work efficiency, so can extensively use widely.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. An efficient energy-saving heat pump fresh air all-in-one machine comprises a main box body (1), a partition plate (2) is arranged in the main box body (1), the main box body (1) is divided into an air inlet channel (3) and an air return channel (4), an air inlet blower (5) and an air return blower (6) are respectively installed in the air inlet channel (3) and the air return channel (4) in series, an outdoor air inlet (7) and an indoor air outlet (8) are arranged at the top of the main box body (1) and are communicated with two ends of the air inlet channel (3), an indoor air return port (9) and an outdoor air return port (10) are further arranged at the top of the main box body (1) and are communicated with two ends of the air return channel (4), a compressor (11) is further arranged in the main box body (1), the compressor (11) is connected with an evaporator (13) arranged in the air inlet channel (3) through a four-way valve (12) and is connected with a condenser (14) arranged in the air return channel (4), and the indoor air return port (9) and the outdoor air return port (4) 10) A bypass channel (15) which is communicated with each other is also arranged between the two channels, and an electric control valve is arranged in the bypass channel (15) to realize the closing and the opening of the bypass channel (15).

2. The high-efficiency energy-saving heat pump and fresh air all-in-one machine as claimed in claim 1, wherein the electric control valve comprises a valve plate (16) which is hinged and installed in the bypass channel (15) and a driving motor (17) which is arranged outside the bypass channel (15), and the control system controls the opening and closing of the bypass channel (15) by controlling the driving motor (17).

3. The high-efficiency energy-saving heat pump and fresh air all-in-one machine as claimed in claim 1, wherein filter screens (18) are further arranged in the air inlet duct (3) and the air return duct (4), and the filter screens (18) are arranged in the air ducts in a triangular shape.

4. The high-efficiency energy-saving heat pump fresh air all-in-one machine as claimed in claim 1, wherein a control box (19) and a press box (20) which are relatively independent are arranged in the main box body (1), an electric control system (21) is arranged in the control box (19), and the compressor (11) is arranged in the press box (20).

5. The high-efficiency energy-saving heat pump and fresh air all-in-one machine as claimed in claim 3, wherein the filter screen (18) is a HEPA and activated carbon composite screen.