Enhanced air source condensation evaporator

Abstract

The invention belongs to the technical field of heat pumps and air conditioners, and particularly relates to an enhanced air source condensation evaporator which comprises a main body tube fin type heat exchanger, a drawer type mounting position, a summer enhanced module, a winter enhanced module and a fan, and the main body tube fin type heat exchanger and the drawer type mounting position are combined into an integrated structure. The drawer type installation positions are located on the two sides of the main body tube fin type heat exchanger respectively. According to climate characteristics of different seasons, a heat exchange enhancing technology and switching of functional modules are adopted, the condensing temperature can be reduced in summer, and the evaporating temperature can be increased in winter, so that the annual comprehensive energy efficiency of a refrigeration / heat pump unit is remarkably improved; the main body structure is simple and easy to manufacture and install due to the combination of integration and integration; the drawer type design enables daily maintenance such as cleaning and replacement of the wet film or the polymer fiber core material to be simple and easy, and maintenance cost and time can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat pumps and air conditioners, in particular to an enhanced air source condensing evaporator. BACKGROUND

[0002] The energy efficiency of the existing air source water chiller / heat pump unit is severely restricted by the ambient temperature. In summer, the condenser needs to discharge heat to the air, and the unit efficiency decreases sharply with the increase of ambient temperature. In winter, the evaporator needs to absorb heat from the air, and the unit efficiency decreases sharply with the decrease of ambient temperature.

[0003] Traditional technology usually uses a single structure of tube fin heat exchanger to consider both working conditions, which leads to a great weakening of the unit efficiency under extreme temperature. To solve this problem, some enhancement technologies have emerged, such as adding a spraying system in front of the condenser to reduce the inlet air temperature in summer. However, these technologies are mostly fixed devices, which have the following defects: 1. Single function, unable to achieve optimal performance throughout the year. Currently, there is no integrated device that can strengthen the heat exchange scheme according to the condensing / evaporating two different working conditions.

[0004] 2. Complex system, excessive cost increase. For example, the spraying system needs to add a water pump, and the spray head needs to be replaced or cleaned regularly. The fixed installation method makes it difficult to maintain and operate.

[0005] 3. The humidification and cooling device in summer is completely useless in winter, and may even be damaged due to icing, requiring additional anti-freezing measures or disassembly.

[0006] Therefore, there is an urgent need for an integrated heat exchange device that can switch working modes according to seasonal working conditions and is easy to maintain. SUMMARY

[0007] The purpose of the present application is to provide an enhanced air source condensing evaporator to solve the problems raised in the background art.

[0008] To achieve the above purpose, the present application provides the following technical scheme: an enhanced air source condensing evaporator, comprising a main tube fin heat exchanger, a drawer type installation site, a summer enhancement module, a winter enhancement module, a fan and a system water supply pipeline, the main tube fin heat exchanger and the drawer type installation site are combined into an integrated structure, the drawer type installation site is located on both sides of the main tube fin heat exchanger, the drawer type installation site internally replaces and fixes the summer enhancement module and the winter enhancement module, the fan is fixed above the integrated structure, and the upper and lower ends of the winter enhancement module are provided with connectors connected with the system refrigerant main pipeline.

[0009] Preferably, the summer enhancement module is a filter humidifier unit, including a filter humidifier, a water distributor, a water collection tank, an electric control valve, and a humidity controller; the water distributor is located above the filter humidifier, the water collection tank is located at the bottom of the filter humidifier, the electric control valve is fixed on the system water supply pipeline, and the humidity probe of the humidity controller is located between the filter humidifier and the main tube-fin heat exchanger.

[0010] Preferably, the winter enhancement module is a tube-fin deep subcooling heater, and the upper and lower ends of the front side of the tube-fin deep subcooling heater are respectively provided with a refrigerant inlet quick connector and a refrigerant outlet quick connector, which are respectively connected to the system's main refrigerant pipeline.

[0011] Preferably, the drawer-type mounting position includes a guide rail.

[0012] Preferably, the summer enhancement module and the winter enhancement module have the same external mounting dimensions.

[0013] Preferably, the inlet of the system's water supply pipeline is connected to a water source, and its outlet is connected to the water supply port of the water distributor.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1) High efficiency throughout the year: By adopting enhanced heat exchange technology and switching of functional modules to address the climate characteristics of different seasons, it is possible to "lower condensing temperature in summer and raise evaporating temperature in winter", which can significantly improve the overall energy efficiency of the refrigeration / heat pump unit throughout the year; 2) Simple structure: The combination of integration and one-piece design makes its main structure simple and easy to manufacture and install; 3) Easy maintenance: The drawer-type design makes routine maintenance such as cleaning and replacing the wet film or polymer fiber core material simple and easy, reducing maintenance costs and time; 4) Wide adaptability: It is particularly suitable for climate zones with significant seasonal temperature differences. Attached Figure Description

[0015] Figure 1 This is an isometric schematic diagram of the summer mode of the present invention; Figure 2 This is an isometric schematic diagram of the winter mode of the present invention; Figure 3 This is a schematic diagram showing the state of the summer enhancement module or the winter enhancement module when they are removed. Figure 4 This is a front view of the summer enhancement module.

[0016] In the diagram: 10. Main tube-fin heat exchanger; 20. Drawer-type mounting position; 30. Summer enhancement module; 40. Winter enhancement module; 50. Fan; 60. System water supply pipeline; 70. Integrated frame. 21. Guide rail; 31. Filter humidifier; 32. Water distributor; 33. Water collection tank; 34. Electric control valve; 35. Humidity controller; 41. Tube-finned deep subcooling heater; 42. Refrigerant inlet quick-connect fitting; 43. Refrigerant outlet quick-connect fitting. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] Example: Please see Figures 1-4 The present invention provides a technical solution: An enhanced air-source condenser-evaporator includes a main tube-fin heat exchanger 10, a drawer-type mounting position 20, a summer enhancement module 30, a winter enhancement module 40, a fan 50, and a system water supply pipeline 60. The main tube-fin heat exchanger 10 and the drawer-type mounting position 20 are combined into an integrated structure 70. The drawer-type mounting positions 20 are located on both sides of the main tube-fin heat exchanger 10. The drawer-type mounting positions 20 internally accommodate and fix the summer enhancement module 30 and the winter enhancement module 40. The fan 50 is fixed on top of the integrated structure 70. The upper and lower ends of the winter enhancement module 40 are provided with connectors that connect to the system refrigerant main pipeline.

[0020] This invention addresses the climatic characteristics of different seasons and the operating characteristics of air-source chiller / heat pump units. By employing wet-film evaporative cooling technology and deep subcooling and heat recovery technology of high-temperature, high-pressure refrigerants, it provides an integrated, switchable, enhanced air-source condenser / evaporator to lower the unit's condensing temperature in summer and increase its evaporating temperature in winter. Furthermore, this invention utilizes a drawer-type structure to achieve functional switching of the enhanced unit, significantly improving the overall annual energy efficiency ratio of the air-source heat pump unit while ensuring convenient operation and maintenance.

[0021] The summer enhancement module 30 is a filter humidifier unit, including a filter humidifier 31, a water distributor 32, a water collection tank 33, an electric control valve 34, and a humidity controller 35. The water distributor 32 is located above the filter humidifier 31, the water collection tank 33 is located at the bottom of the filter humidifier 31, the electric control valve 34 is fixed on the system water supply pipeline 60, and the humidity measuring probe of the humidity controller 35 is located between the filter humidifier 31 and the main tube-fin heat exchanger 10.

[0022] The winter enhancement module 40 is a tube-fin deep subcooling heater 41. The upper and lower ends of the front side of the tube-fin deep subcooling heater 41 are respectively provided with a refrigerant inlet quick connector 42 and a refrigerant outlet quick connector 43. The refrigerant inlet quick connector 42 and the refrigerant outlet quick connector 43 are respectively connected to the system refrigerant main pipeline.

[0023] The drawer-type mounting position 20 includes a guide rail 21.

[0024] Summer enhancement module 30 and winter enhancement module 40 have the same external mounting dimensions.

[0025] The inlet of the system water supply pipeline 60 is connected to the water source, and its outlet is connected to the water supply port of the water distributor 32. The system water supply pipeline 60 is equipped with an electric control valve 34, which automatically replenishes water to the wet film humidifier 31 in a timely manner under the control of the humidity controller 35.

[0026] This air source condenser-evaporator consists of four main parts: the main heat exchange unit, the switchable enhanced heat exchange unit, the water supply and drainage system and the fan that are matched with the filter humidifier 31 in the enhanced heat exchange unit.

[0027] (1) Main heat exchange unit: The main heat exchange unit is a conventional main tube-fin heat exchanger 10, which serves as the basic condenser / evaporator component of the system. In summer, it functions as a condenser, and in winter, it functions as an evaporator.

[0028] (2) Enhanced heat exchange unit with switchable functions: This is a separate two-function module, installed upstream of the airflow of the main heat exchange unit via a drawer-type structure, and is seasonally replaced by two enhancers.

[0029] Summer (refrigeration condition) enhancer: This enhancer is a filtering humidifier 31, which uses a wet film or polymer fiber as the base material. Its function is to utilize the heat absorption of water evaporation to reduce the dry bulb temperature of the air entering the main condenser, thereby reducing the system condensation pressure and improving the refrigeration efficiency. Winter (heat pump condition) enhancer: This enhancer is a finned deep subcooling heater 41, whose refrigerant pipeline is connected to the high-pressure liquid pipeline after condensation in the main system. Its function is to utilize the low-temperature outdoor air to deeply subcool the high-temperature and high-pressure refrigerant coming out of the condenser, that is, to further cool the liquid refrigerant; at the same time, utilize the heat released by the high-temperature and high-pressure refrigerant during the deep subcooling process to heat the air at the inlet of the evaporator, thereby increasing the system evaporation temperature and improving the system heating efficiency.

[0030] The enhanced heat exchange unit with switchable functions is placed in a "drawer-type" structure that is integrated with the frame of the main heat exchanger. Guide rails 21 are provided at the lower part of the "drawer-type" structure. The filtering humidifier 31 and the finned deep subcooling heater 41 have the same external dimensions. Users or maintenance personnel can slide them along the guide rails 21 and insert them into the working position or withdraw them from the working position like pushing and pulling a drawer without tools or only with simple tools.

[0031] In summer, the filtering humidifier 31 with cooling function is placed in the drawer-type structure, and in winter, it is replaced by the finned deep subcooling heater 41 and placed in it.

[0032] (3) Water supply and drainage system supporting the filtering humidifier: The water supply and drainage system supporting the filtering humidifier 31 consists of its water distributor 32, water collection tank 33, electric control valve 34 and humidity controller 35. Its electric control valve 34 is arranged in front of the water replenishment port of the water distributor 32. The water distributor 32 is arranged above the filtering humidifier 31. The water collection tank 33 is arranged below the filtering humidifier 31. The sensor of the humidity controller 35 is arranged between the filtering humidifier 31 and the main finned heat exchanger 10.

[0033] (4) Fan: The fan 50 arranged above the integrated integrated overall frame 70 provides the power to drive air to flow through the enhanced heat exchange unit to the main heat exchange unit.

[0034] Working principle: As Figure 1In summer cooling mode, the summer enhancement module 30 is fully pushed into and fixed in the drawer-type mounting position 20 via the guide rail 21 inside its outer frame. The electric control valve 34 is connected to an external water source. During operation, the external water source supplies water to the water distributor 32, and the water flow evenly wets the filter humidifier 31. The fan 50 drives the air to flow in the direction of the arrow in the figure. The air first passes through the wetted filter humidifier 31, undergoes evaporative cooling, and after the temperature drops, it enters the main tube-fin heat exchanger 10, which serves as the condenser, for efficient heat exchange.

[0035] like Figure 2 In winter heating mode, the summer enhancement module 30 is removed and replaced by the winter enhancement module 40. This module is also slidably installed in place via the guide rail 21. Its refrigerant inlet quick-connect connector 42 and refrigerant outlet quick-connect connector 43 are connected to the corresponding connectors on the system's main refrigerant pipeline. At this time, the main tube-fin heat exchanger 10 acts as an evaporator, absorbing heat from the air. The liquid refrigerant from the shell-and-tube condenser / evaporator first enters the winter enhancement module 40 (as a deep subcooler), where it is further cooled by the cold outdoor air, achieving deep subcooling, and then enters the main tube-fin heat exchanger 10 after throttling. During this process, the liquid refrigerant from the shell-and-tube condenser / evaporator not only achieves deep subcooling but also uses the heat released during subcooling to heat the inlet air before the main tube-fin heat exchanger 10, thereby increasing its evaporation temperature.

[0036] like Figure 3 It shows the status during maintenance or seasonal changes. Regardless of which enhancement module it is, it can be easily pulled out like a drawer for cleaning, inspection or replacement.

[0037] In summary, this invention, through its drawer-type modular design, successfully integrates two enhanced heat exchange technologies for different seasons, effectively improving the overall performance and ease of use of the air source chiller / heat pump unit throughout the year.

[0038] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this invention is through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. It should be noted that the electrical components mentioned in this invention have been sorted according to the actual situation during manufacturing, so as not to cause the wire harness to become tangled or affect the operation. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An enhanced air-source condenser-evaporator, comprising a main tube-fin heat exchanger (10), a drawer-type mounting position (20), a summer enhancement module (30), a winter enhancement module (40), a fan (50), and a system water supply pipeline (60), characterized in that, The main tube-fin heat exchanger (10) and the drawer-type mounting position (20) are combined into an integrated structure (70). The drawer-type mounting position (20) is located on both sides of the main tube-fin heat exchanger (10). The drawer-type mounting position (20) is used to replace and fix the summer enhancement module (30) and the winter enhancement module (40). The fan (50) is fixed on the top of the integrated structure (70). The upper and lower ends of the winter enhancement module (40) are provided with connectors connected to the main refrigerant pipeline of the system.

2. The enhanced air-source condenser-evaporator according to claim 1, characterized in that: The summer enhancement module (30) is a filter humidifier unit, including a filter humidifier (31), a water distributor (32), a water collection tank (33), an electric control valve (34), and a humidity controller (35). The water distributor (32) is located above the filter humidifier (31), the water collection tank (33) is located at the bottom of the filter humidifier (31), the electric control valve (34) is fixed on the system water supply pipeline (60), and the humidity probe of the humidity controller (35) is located between the filter humidifier (31) and the main tube-fin heat exchanger (10).

3. The enhanced air-source condenser-evaporator according to claim 1, characterized in that: The winter enhancement module (40) is a tube-fin deep subcooling heater (41). The tube-fin deep subcooling heater (41) is provided with a refrigerant inlet quick connector (42) and a refrigerant outlet quick connector (43) at the upper and lower ends of the front side, respectively. The refrigerant inlet quick connector (42) and the refrigerant outlet quick connector (43) are respectively connected to the system refrigerant main pipeline.

4. An enhanced air-source condenser-evaporator according to claim 1, characterized in that: The drawer-type mounting position (20) includes a guide rail (21).

5. An enhanced air-source condenser-evaporator according to claim 1, characterized in that: The summer enhancement module (30) and the winter enhancement module (40) have the same external mounting dimensions.

6. An enhanced air-source condenser-evaporator according to claim 1, characterized in that: The inlet of the system water supply pipeline (60) is connected to the water source, and its outlet is connected to the water supply port of the water distributor (32).

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