A dual cold source DC variable frequency dehumidification fresh air air conditioning unit

Abstract

The utility model discloses a dual cold source type DC variable frequency dehumidification fresh air air conditioning unit, which relates to the field of air conditioning technology. It is composed of a DC variable frequency outdoor host and a fresh air air conditioning indoor unit. The DC variable frequency outdoor host delivers fresh air to the fresh air air conditioning indoor unit. The fresh air air conditioning indoor unit includes a fresh air section, a primary filter section, a medium-efficiency filter section, a medium-temperature water meter cold section, an intermediate section, a DC variable frequency evaporator section, a humidification section, a fan section and an air outlet section, which are arranged in sequence from the air inlet direction to the air outlet direction. The utility model solves the problem of using dual-temperature chilled water in the independent temperature and humidity control system of the fresh air fan independent dehumidification and dry coil temperature adjustment, which is caused by high cost in the first investment and low energy efficiency of the chilled water air conditioning host. The cold water host directly uses a medium-temperature water type cold water host, which greatly improves the energy efficiency ratio of the cold water host. By using this utility patent technology, the fresh air dehumidification fresh air fan can directly use medium-temperature chilled water, reduce the energy consumption of the secondary circulation water pump, and save operating power consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a double-cold-source direct current variable frequency dehumidification fresh air air conditioning unit. Background Art

[0002] In the market application of the independent humidity control system of clean room using fresh air in constant temperature and humidity clean room combined with dry coil, dual-temperature chilled water is required in the system, resulting in a double circulation system of the system, with a large initial investment cost. Since 7°C chilled water is required to be supplied to the fresh air fan for dehumidification, the air conditioner host has low energy efficiency. At the same time, the utility model patented technology can also be widely used in the transformation of projects that cannot meet the humidity requirements of the controlled environment due to the high temperature of the chilled water. From the needs of primary investment and energy saving, and from the market demand, there is huge room for product development. Therefore, a dual cold source DC variable frequency dehumidification fresh air air conditioning unit is proposed here. Utility Model Content

[0003] Technical issues solved

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a dual-cold-source direct current variable-frequency dehumidification fresh air air conditioning unit.

[0005] Technical Solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-cold-source DC variable frequency dehumidification fresh air air-conditioning unit, which is composed of a DC variable frequency outdoor host and a fresh air air-conditioning indoor unit. The DC variable frequency outdoor host conveys fresh air to the fresh air air-conditioning indoor unit, and is characterized in that: the fresh air air-conditioning indoor unit comprises a fresh air section, a primary filter section, a medium-efficiency filter section, a medium-temperature water table cooling section, an intermediate section, a DC variable frequency evaporator section, a humidification section, a fan section and an air outlet section, which are arranged in sequence from the air inlet direction to the air outlet direction, and solves the problem of independent dehumidification of the fresh air fan and independent temperature and humidity control system of the dry coil temperature regulation. The use of dual-temperature chilled water results in a high initial investment cost and low energy efficiency of the chilled water air-conditioning host. The chilled water host directly adopts the medium-temperature water chilled water host, which greatly improves the energy efficiency ratio of the chilled water host. By adopting this practical patented technology, the fresh air dehumidification fresh air fan can directly use medium-temperature chilled water, which is the same temperature as the medium-temperature water used in the dry coil. Not only does it not need the investment and maintenance management caused by the secondary heat exchange of the plate heat exchanger, but it also does not need the secondary circulation water pump and the secondary chilled water system, which greatly reduces the initial investment, reduces the energy consumption of the secondary circulation water pump, and saves operating power consumption.

[0007] Preferably, a flow equalizing section is provided between the fan section and the air outlet section.

[0008] Preferably, a sub-high efficiency filtering section is further provided between the fan section and the air outlet section.

[0009] Preferably, the sub-high efficiency filtration section is located at the rear end of the flow equalization section.

[0010] Preferably, the fresh air delivered by the DC frequency conversion outdoor host to the fresh air air conditioner indoor unit enters from the fresh air section.

[0011] Preferably, the medium-temperature water meter cooling section adopts a medium-temperature water type cold water main unit.

[0012] Beneficial effects:

[0013] Compared with the existing technology, this dual cold source DC variable frequency dehumidification fresh air air conditioning unit has the following features:

[0014] Beneficial effects:

[0015] 1. The utility model solves the problem of using dual-temperature chilled water in the independent temperature and humidity control system of the fresh air fan independent dehumidification and dry coil temperature regulation, which has the characteristics of high one-time investment cost and low energy efficiency of the chilled water air-conditioning host. The chilled water host directly adopts the medium-temperature water type chilled water host, which greatly improves the energy efficiency ratio of the chilled water host.

[0016] 2. By adopting this practical patented technology, the fresh air dehumidification fresh air fan can directly use medium-temperature chilled water, which is the same temperature as the medium-temperature water used when using dry coils. Not only does it not require the investment and maintenance management caused by secondary heat exchange using a plate heat exchanger, but it also does not require a secondary circulation water pump and a secondary chilled water system, greatly reducing the initial investment, and also reducing the energy consumption of the secondary circulation water pump and saving operating power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a system composition structure diagram of the utility model;

[0018] Figure 2 This is a system composition structure diagram of another embodiment of the utility model;

[0019] Figure 3 This is a system composition structure diagram of another embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the utility model.

[0021] In the figure:

[0022] 1. Fresh air section; 2. Primary filtration section; 3. Medium efficiency filtration section; 4. Medium temperature water table cooling section; 5. Middle section; 6. DC variable frequency evaporator section; 7. Humidification section; 8. Fan section; 9. Flow equalization section; 10. Sub-high efficiency filtration section; 11. Air outlet section. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 to Figure 4 As shown, the utility model provides a technical solution: a dual-cold source DC variable frequency dehumidification fresh air air-conditioning unit, which is composed of a DC variable frequency outdoor host and a fresh air air-conditioning indoor unit. The DC variable frequency outdoor host conveys fresh air to the fresh air air-conditioning indoor unit. The fresh air air-conditioning indoor unit includes a fresh air section 1, a primary filter section 2, a medium-efficiency filter section 3, a medium-temperature water meter cooling section 4, an intermediate section 5, a DC variable frequency evaporator section 6, a humidification section 7, a fan section 8 and an air outlet section 11 which are arranged in sequence from the air inlet direction to the air outlet direction.

[0025] Please pay attention to Figure 2 , which is one of the embodiments of the present application. In this embodiment, a flow balancing section 9 is provided between the fan section 8 and the air outlet section 11. The setting of the flow balancing section 9 makes the air outlet more uniform.

[0026] Please pay attention to Figure 3 This is one of the embodiments of the present application. In this embodiment, a flow equalizing section 9 and a sub-high efficiency filtration section 10 are arranged between the fan section 8 and the air outlet section 11. The sub-high efficiency filtration section 10 is located at the rear end of the flow equalizing section 9. The arrangement of the flow equalizing section 9 and the sub-high efficiency filtration section 10 makes the air outlet more uniform and the blown air cleaner.

[0027] The fresh air delivered by the DC variable frequency outdoor host to the fresh air air conditioner indoor unit enters from the fresh air section 1, and the medium-temperature water meter cooling section 4 adopts a medium-temperature water type cold water host.

[0028] In summary, the utility model solves the problem of high initial investment cost and low energy efficiency of the chilled water air-conditioning host caused by the use of dual-temperature chilled water in the independent temperature and humidity control system of the fresh air fan for independent dehumidification and the dry coil temperature adjustment. The chilled water host directly adopts the medium-temperature water type chilled water host, which greatly improves the energy efficiency ratio of the chilled water host. By adopting the utility model patented technology, the fresh air dehumidification fresh air fan can directly use medium-temperature chilled water, which is the same temperature as the medium-temperature water used in the dry coil. Not only does it not need the investment and maintenance management caused by the secondary heat exchange of the plate heat exchanger, but it also does not need the secondary circulation water pump and the secondary chilled water system, which greatly reduces the initial investment, reduces the energy consumption of the secondary circulation water pump, and saves operating power consumption.

[0029] The utility model can also be widely used in the transformation of projects that cannot meet the requirements of controlled environmental humidity due to the high temperature of the chilled water. From the needs of primary investment and energy saving, from the market demand, the product development space is for low-investment, low-energy consumption energy-saving, practical patented technology air-conditioning products.

[0030] This practical patented DC frequency conversion system has the function of refrigeration and heat pump conversion. In winter and transitional seasons, the required mode can be set to flexibly change the fresh air combination air conditioner into pure dehumidification mode, constant temperature and humidity mode, and heating and humidification mode, greatly adapting to various application needs on the basis of energy saving.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual cold source type DC variable frequency dehumidification fresh air air conditioning unit, consisting of a DC variable frequency outdoor host and a fresh air air conditioner indoor unit, the DC variable frequency outdoor host delivers fresh air to the fresh air air conditioner indoor unit, characterized in that: The fresh air air conditioner indoor unit comprises a fresh air section (1), a primary filter section (2), a medium filter section (3), a medium temperature water table cooling section (4), an intermediate section (5), a DC variable frequency evaporator section (6), a humidifying section (7), a fan section (8) and an air outlet section (11) which are arranged in sequence from the air inlet direction to the air outlet direction.

2. A dual cold source type DC variable frequency dehumidification fresh air air conditioning unit according to claim 1, characterized in that: A flow balancing section (9) is provided between the fan section (8) and the air outlet section (11).

3. A dual cold source type DC variable frequency dehumidification fresh air air conditioning unit according to claim 1 or 2, characterized in that: A sub-high efficiency filtering section (10) is also provided between the fan section (8) and the air outlet section (11).

4. A dual cold source type DC variable frequency dehumidification fresh air air conditioning unit according to claim 3, characterized in that: The sub-high efficiency filtering section (10) is located at the rear end of the flow equalizing section (9).

5. A dual cold source type DC variable frequency dehumidification fresh air air conditioning unit according to claim 1, characterized in that: The fresh air delivered by the DC frequency conversion outdoor host to the fresh air air conditioner indoor unit enters from the fresh air section (1).

6. A dual cold source type DC variable frequency dehumidification fresh air air conditioning unit according to claim 1, characterized in that: The medium-temperature water meter cooling section (4) adopts a medium-temperature water type cooling water main unit.

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