Dehumidification circulating air air conditioning unit adopting heat pipe type heat recovery

Abstract

The utility model discloses a dehumidification circulating air air conditioning unit adopting heat pipe type heat recovery, which comprises an air inlet filtering section, a heat pipe type heat exchange front section, a surface cooling dehumidification section, a heat pipe type heat exchange rear section, a reheating section, a middle section, a fan section, a noise elimination flow equalizing section, an air supply section and the like, and an electric valve is mounted on the heat exchange coil pipe. Due to the fact that the temperature of air during air inlet is high, and the temperature of the air subjected to surface cooling dehumidification treatment is too low, the heat pipe which is an element with extremely high heat conduction capacity is adopted, and heat in the inlet air is transferred to the air subjected to surface cooling dehumidification for reheating. And meanwhile, the supercooling capacity after surface cooling dehumidification is transferred to the air before surface cooling dehumidification for pre-cooling, so that the energy consumption of surface cooling dehumidification and reheating can be effectively reduced, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dehumidification circulating air air conditioning units, in particular to a dehumidification circulating air air conditioning unit adopting heat pipe type heat recovery. Background Art

[0002] The painting process in the paint shop will produce high-temperature air containing water vapor, which requires circulating air conditioning to cool and dehumidify.

[0003] At present, most processes use air conditioning surface cooling coils to cool and dehumidify circulating air. When the humidity of the air meets the requirements, the temperature is often too low. At this time, the air conditioning hot water coil is used to reheat the air to achieve control of the supply air temperature. The process of cooling first and then heating up has the problem of cold and heat offsetting each other, wasting energy, and is not conducive to energy saving. In order to solve the above problems, the present application proposes a dehumidifying circulating air air conditioning unit using heat pipe heat recovery. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a dehumidification circulating air air-conditioning unit with heat pipe type heat recovery is proposed. Since the air temperature at the time of inlet is relatively high and the air temperature after surface cooling and dehumidification is too low, a heat pipe, which is an element with extremely strong thermal conductivity, is used to transfer the heat in the inlet air to the air after surface cooling and dehumidification for reheating, and at the same time transfer the supercooling after surface cooling and dehumidification to the air before surface cooling and dehumidification for precooling, which can effectively reduce the energy consumption of surface cooling, dehumidification and reheating, thereby achieving energy saving effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dehumidifying circulating air air conditioning unit with heat pipe heat recovery, the unit includes an air inlet filter section, a heat pipe heat exchange front section, a surface cooling dehumidification section, a heat pipe heat exchange rear section, a reheat section, an intermediate section, a fan section, a silencer and flow equalization section, an air supply section, etc. The surface cooling dehumidification section and the reheat section both use surface heat exchange coils, and an electric valve is installed on the heat exchange coil. The air conditioning unit is provided with an air inlet duct and an air outlet duct, and temperature sensors and humidity sensors are installed on the air inlet duct and the air outlet duct.

[0007] Preferably, the heat pipe heat exchange front section and the heat pipe heat exchange rear section constitute a heat pipe heat exchange section, and a heat pipe heat exchanger is installed between the heat pipe heat exchange front section and the heat pipe heat exchange rear section.

[0008] Preferably, the heat pipe type heat exchange front section and the heat pipe type heat exchange rear section are composed of an equipment box, heat pipes and fins, and the heat pipes in the heat pipe type heat exchange front section and the heat pipe type heat exchange rear section are a whole.

[0009] Preferably, the surface cooling and dehumidification section is located between the front section of the heat pipe heat exchange and the rear section of the heat pipe heat exchange.

[0010] Preferably, the circulating air passes through the front section of the heat pipe heat exchange, the surface cooling and dehumidification section, the rear section of the heat pipe heat exchange and the reheating section in sequence.

[0011] Preferably, the heat pipe is a super heat transfer conductor.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model adopts a heat pipe to pre-cool the circulating air before the surface cooling and dehumidification treatment and reheat the air after the surface cooling and dehumidification treatment; the heat pipe itself does not require additional energy consumption and has no moving parts, so there is no excess energy consumption and the reliability is also high.

[0014] 2. The heat pipe heat recovery section in the utility model is divided into two parts, the front section and the rear section. These two sections are located before and after the surface cooling and dehumidification section, and adopt a horizontal layout. They do not require additional space and have a compact structure. The changes to the original air treatment process are small, and they can be applied to new projects or renovation projects.

[0015] To sum up, since the air temperature at the time of inlet is relatively high, the air temperature after surface cooling and dehumidification is too low. The heat pipe, a component with extremely strong thermal conductivity, is used to transfer the heat in the incoming air to the air after surface cooling and dehumidification for reheating. At the same time, the supercooling after surface cooling and dehumidification is transferred to the air before surface cooling and dehumidification for precooling, which can effectively reduce the energy consumption of surface cooling and dehumidification and reheating, thereby achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a dehumidifying circulating air air conditioning unit adopting heat pipe type heat recovery proposed by the utility model;

[0017] Figure 2 This is a control system schematic diagram of a dehumidifying circulating air air conditioning unit using heat pipe type heat recovery proposed by the utility model.

[0018] In the figure: 1 air inlet filtration section, 2 heat pipe heat exchange front section, 3 surface cooling and dehumidification section, 4 heat pipe heat exchange rear section, 5 reheat section, 6 middle section, 7 fan section, 8 silencer and flow equalizing section, 9 air supply section, 10 heat pipe heat exchange section. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 2 A dehumidifying circulating air air conditioning unit using heat pipe heat recovery, the unit includes an air inlet filter section 1, a heat pipe heat exchange front section 2, a surface cooling and dehumidification section 3, a heat pipe heat exchange rear section 4, a reheat section 5, an intermediate section 6, a fan section 7, a silencer and flow equalizing section 8, an air supply section 9, etc.

[0021] The heat pipe heat exchange front section 2 and the heat pipe heat exchange rear section 4 constitute a heat pipe heat exchange section 10 , and a heat pipe heat exchanger is installed between the heat pipe heat exchange front section 2 and the heat pipe heat exchange rear section 4 .

[0022] The heat pipe type heat exchange front section 2 and the heat pipe type heat exchange rear section 4 are composed of an equipment box, heat pipes and fins, and the heat pipes in the heat pipe type heat exchange front section 2 and the heat pipe type heat exchange rear section 4 are a whole.

[0023] The surface cooling and dehumidification section 3 is located between the front section 2 of the heat pipe heat exchange and the rear section 4 of the heat pipe heat exchange. The surface cooling and dehumidification section 3 is mainly used for cooling and dehumidifying the circulating air. The surface cooling and dehumidification section 3 adopts a surface heat exchange coil. The cooling capacity of the coil is adjusted by controlling the cooling medium entering the coil through an electric valve.

[0024] The reheat section 5 is located after the heat pipe heat exchange rear section 4. The reheat section 5 is mainly used to heat up and reheat the circulating air after surface cooling so that the supply air temperature reaches the required level. The reheat section 5 uses a surface heat exchange coil. The heat of the coil is adjusted by controlling the heating medium entering the coil through an electric valve.

[0025] The circulating air passes through the heat pipe heat exchange front section 2, the surface cooling and dehumidification section 3, the heat pipe heat exchange rear section 4 and the reheating section 5 in sequence.

[0026] The heat pipe heat exchange section 10, on the one hand, has the function of recovering the sensible heat in the circulating air, and transferring the heat to the circulating air treated by the surface cooling and dehumidification section 3 through the heat pipe, thereby reducing the reheating energy consumption caused by the surface cooling and dehumidification section 3 causing the supply air temperature to be too low in order to control the supply air humidity, and the need to heat the air through the reheat section 5 before sending it out; the heat pipe heat exchange section 10, on the other hand, has the function of recovering the cold in the treated supply air, and transferring the cold in reverse to the incoming air before treatment by the surface cooling and dehumidification section 3 through the heat pipe, thereby pre-cooling the air to be treated and reducing the energy consumption of the surface cooling and dehumidification section 3.

[0027] The heat pipe is a super heat transfer conductor. The surface cooling and dehumidification section 3 and the reheating section 5 both use surface heat exchange coils. Electric valves are installed on the heat exchange coils. The cooling (heating) capacity of the heat exchange coils is adjusted by controlling the cooling (heating) medium entering the coils through the electric valves.

[0028] The heat pipe heat exchange section 10 is the core component of the utility model. The heat pipe is a device that can quickly transfer heat energy from one point to another. Because it has extraordinary heat conduction ability and almost no heat loss, it is called a super heat transfer conductor. It can transfer a large amount of heat over a long distance through a very small cross-sectional area without external power.

[0029] The air conditioning unit is provided with an air inlet duct and an air outlet duct, on which temperature sensors and humidity sensors are installed for measuring the air temperature and air humidity of the air inlet duct and the air outlet duct of the circulating air air conditioning unit respectively. After comparing the temperature detection value and the humidity detection value with the set value, feedback signals are output to control each electric valve.

[0030] The control objects of the control system of the utility model mainly include the coil electric valve of the surface cooling and dehumidification section 3, the coil electric valve of the heating and reheating section 5, the fan of the air conditioning unit, etc.

Claims

1. A dehumidifying circulating air air conditioning unit using heat pipe heat recovery, characterized in that: The unit comprises an air inlet filter section (1), a heat pipe heat exchange front section (2), a surface cooling and dehumidification section (3), a heat pipe heat exchange rear section (4), a reheat section (5), an intermediate section (6), a fan section (7), a noise reduction and flow equalization section (8), and an air supply section (9). The surface cooling and dehumidification section (3) and the reheat section (5) both adopt surface heat exchange coils, and an electric valve is installed on the heat exchange coil. The air conditioning unit is provided with an air inlet duct and an air outlet duct, and the air inlet duct and the air outlet duct are both installed with a temperature sensor and a humidity sensor.

2. A dehumidifying circulating air conditioning unit using heat pipe heat recovery according to claim 1, characterized in that: The heat pipe heat exchange front section (2) and the heat pipe heat exchange rear section (4) form a heat pipe heat exchange section (10), and a heat pipe heat exchanger is installed between the heat pipe heat exchange front section (2) and the heat pipe heat exchange rear section (4).

3. A dehumidifying circulating air conditioning unit using heat pipe heat recovery according to claim 1, characterized in that: The heat pipe type heat exchange front section (2) and the heat pipe type heat exchange rear section (4) are composed of an equipment box, heat pipes and fins, and the heat pipes in the heat pipe type heat exchange front section (2) and the heat pipe type heat exchange rear section (4) are a whole.

4. The dehumidification circulating air conditioning unit using heat pipe type heat recovery according to claim 1, characterized in that: The surface cooling and dehumidification section (3) is located between the heat pipe type heat exchange front section (2) and the heat pipe type heat exchange rear section (4).

5. The dehumidification circulating air conditioning unit using heat pipe type heat recovery according to claim 1, characterized in that: The circulating air passes through the heat pipe heat exchange front section (2), the surface cooling and dehumidification section (3), the heat pipe heat exchange rear section (4) and the reheating section (5) in sequence.

6. The dehumidification circulating air conditioning unit using heat pipe heat recovery according to claim 1, characterized in that: The heat pipe is a super heat transfer conductor.

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