An air duct device for a vitiated air heat pump system

Abstract

The present invention provides an air duct device for a ventilation air heat pump system, comprising: an air duct main body, which includes a first air duct body, a second air duct body and a third air duct body, and a first heat exchange module and a second heat exchange module are respectively arranged in the first air duct body and the second air duct body; a first matrix deflector is provided at the air inlet of the first air duct body; a second matrix deflector is provided at the connection between the first air duct body and the second air duct body; a matrix type exhaust air passage arranged in the third air duct body; a monitoring unit; wherein, the air duct device is configured to enable the ventilation air from the mine exhaust air wellhead to sequentially pass through the first matrix deflector, the second matrix deflector and the matrix type exhaust air passage, so that the air passing through amount of each cross-section in the longitudinal direction of the air duct main body is the same, thereby making the air passing through amount of the first heat exchange module and the second heat exchange module uniform, and the monitoring unit can monitor and adjust the wind pressure in the first air duct body, the second air duct body and the third air duct body in real time, so as to keep the wind pressure at the air inlet of the air duct device balanced with the wind pressure at the air outlet.

Description

Technical Field

[0001] The present invention belongs to the technical field of exhausted air heat pumps, and particularly relates to an air duct device for an exhausted air heat pump system. Background Art

[0002] An exhausted air heat pump system is a heating system that uses the exhaust air from a mine (11°C - 20°C) as a heat source. In existing exhausted air heat pump systems, an exhausted air chamber (static pressure chamber) is usually made above the exhaust outlet, and an evaporator is installed on the wall of the exhausted air chamber to extract heat. This setting method has some problems. For example, due to the limitations of the static pressure chamber structure and space, it is almost impossible to achieve turbulent flow, which results in uneven air flow rates through each evaporator. As a result, the evaporator with a small air flow rate has insufficient heat extraction and is prone to frosting, while the evaporator with a large air flow rate cannot fully utilize the exhausted air heat energy, causing energy waste. In addition, since the static pressure chamber is above the exhausted air outlet, the risk of condensate backflow increases. In practical applications, accidents frequently occur where the main fan of the blower freezes due to condensate backflow, resulting in damage to the motor. Moreover, the inconsistent air flow rates at different parts of the evaporator will verify and affect the normal operation of the heat exchange function of the evaporator. In addition, the on-site construction of the exhausted air static pressure chamber is difficult, with a long construction period and high cost, increasing the construction cost. Summary of the Invention

[0003] Aiming at the above-mentioned technical problems, the present invention aims to provide an air duct device for an exhausted air heat pump system. The air duct device for the exhausted air heat pump system can keep the inlet air volume and the outlet air volume unchanged, and can make the air flow rates through the cross-sections at all longitudinal positions of the air duct consistent. At the same time, it can perform constant-temperature dehumidification treatment on the passing air, so as to effectively avoid or reduce frosting of the second heat exchange module, keep the air duct device in a heating state throughout the process, which is very beneficial for energy conservation and improving the utilization rate of exhausted air heat energy.

[0004] To this end, according to the present invention, a duct device for a mine ventilation heat pump system is provided, including: a duct main body for connecting to the mine exhaust air inlet, which includes a first duct body, a second duct body, and a third duct body connected in sequence, and a first heat exchange module and a second heat exchange module are respectively arranged inside the first duct body and the second duct body; a first matrix deflector arranged at the air inlet of the first duct body; a second matrix deflector arranged at the connection between the first duct body and the second duct body; a matrix exhaust duct arranged inside the third duct body; and a monitoring unit; wherein, the duct device is configured to enable the exhausted air from the mine exhaust air inlet to pass through the first matrix deflector, the second matrix deflector, and the matrix exhaust duct in sequence, so that the air passing through each cross-section in the longitudinal direction of the duct main body remains the same, thereby making the air passing through the first heat exchange module and the second heat exchange module uniform, and the monitoring unit can monitor and adjust the air pressure inside the first duct body, the second duct body, and the third duct body in real time, so as to keep the air pressure at the air inlet of the duct device balanced with the air pressure at the air outlet.

[0005] In one embodiment, the first matrix deflector, the second matrix deflector, and the matrix exhaust duct are configured to have the same matrix structure.

[0006] In one embodiment, a variable frequency explosion-proof fan signal-connected to the monitoring unit is installed at the outlet of the matrix exhaust duct, and the monitoring unit can control the operation of the variable frequency explosion-proof fan to adjust the air pressure inside the duct main body.

[0007] In one embodiment, a dehumidification area is provided between the first duct body and the second duct body, and a dehumidification module is provided in the dehumidification area. The dehumidification module can perform constant-temperature dehumidification treatment on the exhausted air from the first duct body.

[0008] In one embodiment, the monitoring unit includes: a plurality of detection elements respectively arranged at the air inlet of the first duct body, the first heat exchange module, the dehumidification module, the second heat exchange module, and the air inlet of the third duct body; a control center signal-connected to each detection element; wherein, the control center is signal-connected to the variable frequency explosion-proof fan, and the control center can control the operation of the variable frequency explosion-proof fan according to the detection signals of each detection element to adjust the air pressure.

[0009] In one embodiment, the first duct body and the second duct body respectively form an α angle and a β angle with the horizontal plane, so that the first duct body and the second duct body are connected in a V shape.

[0010] In one embodiment, a condensate water channel is provided at the bottom of the first duct body and the second duct body, and a water-gas isolation element is provided above the condensate water channel.

[0011] In one embodiment, a water guide groove is provided at the lower ends of the first air duct body and the second air duct body, a diversion hole is provided at the connection between the first air duct body and the second air duct body, and the condensate water channel communicates with the water guide groove through the diversion hole.

[0012] In one embodiment, the air outlet of the third air duct body is arranged perpendicular to the outlet end of the second air duct body.

[0013] Compared with the prior art, the advantages of the present application are as follows:

[0014] According to the air duct device for a ventilation air heat pump system of the present invention, through the matrix diversion plate and the matrix type exhaust air channel, laminar flow in the horizontal and vertical directions can be formed at each vertical section of the air duct main body for the ventilation air, so that the air flow rate at each section in the longitudinal direction of the air duct main body remains the same, which is very beneficial to ensuring the same air volume at each point of the first heat exchange module and the second heat exchange module, and ensuring the normal operation of the first heat exchange module and the second heat exchange module. The air duct device can adjust the operation of the corresponding fans of the first air duct body, the second air duct body and the third air duct body in real time through the monitoring unit to compensate for the wind pressure loss caused by the first heat exchange module, the second heat exchange module and the air duct, so as to ensure that the air inlet wind pressure and the air outlet wind pressure of the air duct device are equal, and keep the wind pressure balanced, which can effectively guarantee the underground production and the safety of personnel. In addition, the air duct device performs constant temperature dehumidification treatment on the passing air through the dehumidification module to ensure that the ventilation air is nearly dry air in the later stage of passing, effectively avoiding or reducing frosting of the second heat exchange module, enabling the air duct device to be in a heating state throughout the whole process, being very beneficial to energy conservation, and significantly improving the utilization rate of ventilation air heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be described below with reference to the accompanying drawings.

[0016] Figure 1 Schematically shows the structure of the air duct device for a ventilation air heat pump system according to the present invention.

[0017] Figure 2 Schematically shows Figure 1 the structures of the first air duct body and the second air duct body in the shown air duct device for a ventilation air heat pump system.

[0018] Figure 3 Schematically shows the schematic diagram of the principle of the monitoring unit.

[0019] Figure 4 is Figure 1 the sectional view along line A-A in (i.e., the schematic diagram of the structure of the air outlet of the matrix type exhaust air channel).

[0020] Figure 5 is Figure 1Cross-sectional view along line B-B (C-C, D-D) of the middle section (i.e., schematic diagram of the matrix exhaust duct and matrix deflector).

[0021] In this application, all the drawings are schematic drawings, only used to illustrate the principle of the present invention, and are not drawn to actual scale. Detailed implementation manners

[0022] The present invention will be introduced below with reference to the drawings.

[0023] In this application, it should be noted that the directional terms or qualifiers such as "upper", "lower", etc. used in this application are all with reference to the attached Figure 1 drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0024] Figure 1 Schematically shows the structure of the air duct device 100 for a mine ventilation heat pump system according to the present invention. As Figure 1 shown, the air duct device 100 includes an air duct main body for communicating with the mine exhaust air inlet. The air duct main body is sequentially connected to a first air duct body 1, a second air duct body 2, and a third air duct body 3. A first heat exchange module 11 is provided inside the first air duct body 1, and a second heat exchange module 21 is provided inside the second air duct body 2. A matrix exhaust duct 31 is provided inside the third air duct body 3. The air duct device 100 further includes a dehumidification area 4 and a monitoring unit 5. The dehumidification area 4 is formed between the first air duct body 1 and the second air duct body 2, and a dehumidification module 41 is provided in the dehumidification area 4.

[0025] During the actual working process, the exhausted air from the mine exhaust air inlet sequentially passes through the first air duct body 1, the second air duct body 2, and the third air duct body 3 and then is discharged. The air duct device 100 is configured to enable the exhausted air from the mine exhaust air inlet to sequentially pass through the first matrix deflector 6a, the second matrix deflector 6b, and the matrix exhaust duct 31, so that the air flow rate of each cross-section in the longitudinal direction of the air duct main body remains the same, thereby making the air flow rate of the first heat exchange module 11 and the second heat exchange module 21 uniform. At the same time, the monitoring unit 5 can monitor and adjust the air pressure in the first air duct body 1, the second air duct body 2, and the third air duct body 3 in real time, so as to keep the air pressure P1 at the air inlet and the air pressure P2 at the air outlet of the air duct device 100 balanced. During the exhausted air passing process, the exhausted air is sequentially cooled by heat exchange through the first heat exchange module 11 and the second heat exchange module 21. Thus, the first heat exchange module 11 and the second heat exchange module 21 can obtain the heat of the exhausted air and supply it to other devices, realizing the utilization of the heat of the exhausted air. And when the exhausted air passes through the dehumidification area 4, it is subjected to constant-temperature dehumidification treatment by the dehumidification module 41 to ensure that the exhausted air is nearly dry air in the later-stage passing process, effectively avoiding or reducing frosting of the second heat exchange module 21.

[0026] Inside the first air duct body 1, a plurality of first heat exchange modules 11 are provided. The plurality of first heat exchange modules 11 are evenly spaced apart along the axial direction of the first air duct body 1, and each first heat exchange module 11 is installed at the central position of the cross-section of the first air duct body 1, which can effectively ensure the heat exchange efficiency of the first heat exchange module 11. Similarly, inside the second air duct body 2, a plurality of second heat exchange modules 21 are provided. The plurality of second heat exchange modules 21 are evenly spaced apart along the axial direction of the second air duct body 2, and each second heat exchange module 21 is installed at the central position of the cross-section of the second air duct body 2, which can effectively ensure the heat exchange efficiency of the second heat exchange module 21. In Figure 1 the illustrated embodiment, 3 first heat exchange modules 11 are provided inside the first air duct body 1, and 3 second heat exchange modules 21 are provided inside the second air duct body 2. The first heat exchange module 11 and the second heat exchange module 21 are, for example, evaporators.

[0027] According to the present invention, as Figure 2 shown, at the air inlet of the first air duct body 1, a first matrix deflector 6a is provided, and at the connection between the first air duct body 1 and the second air duct body 2, a second matrix deflector 6b is provided. The first matrix deflector 6a is formed with a plurality of matrix-distributed flow-through channels for the exhausted air to pass through. The first matrix deflector 6a, the second matrix deflector 6b, and the matrix-type exhaust air channel 31 in the third air duct body 3 are configured into the same matrix structure. Figure 5 Schematically shows the cross-sectional shapes of the first matrix deflector 6a, the second matrix deflector 6b, and the matrix-type exhaust air channel 31. Thus, through the design of the first matrix deflector 6a, the second matrix deflector 6b, and the matrix-type exhaust air channel 31 inside the air duct main body, laminar flow in the horizontal and vertical directions can be formed in each vertical section inside the air duct main body, so that the air passing volume of each section in the longitudinal direction of the air duct main body remains the same, ensuring that the exhaust air volume is not affected. This makes the air volume at each point of the first heat exchange module 11 and the second heat exchange module 21 consistent, ensuring uniform ventilation volume. This not only effectively avoids frosting of the first heat exchange module 11 and the second heat exchange module 21, guarantees the normal operation of the first heat exchange module 11 and the second heat exchange module 21, but also ensures that the first heat exchange module 11 and the second heat exchange module 21 can make full use of the exhausted air heat energy and avoid energy waste.

[0028] According to an embodiment of the present invention, a variable-frequency explosion-proof fan 32 is installed at the outlet of the matrix-type exhaust air channel 31 (see Figure 4 ), and the variable-frequency explosion-proof fan 32 is signal-connected to the monitoring unit 5. As Figure 4As shown, there are multiple variable-frequency explosion-proof fans 32, which are respectively installed at the respective outlets of the matrix distribution at the outlet end of the matrix-type exhaust air duct 31. For example, the variable-frequency explosion-proof fans 32 can be installed at the central positions of the respective outlets of the matrix distribution through brackets. The functions of the variable-frequency explosion-proof fans 32 will be introduced in detail below.

[0029] In a preferred embodiment, the air outlet of the third air duct body 3 is arranged perpendicular to the outlet end of the second air duct body 2. In this way, the exhausted air of the air duct device 100 is discharged upward through the third air duct body 3, thereby avoiding the influence of other wind directions on the air outlets of the matrix-type exhaust air duct 31, which is very beneficial to ensuring the balance between the air inlet pressure P1 and the air outlet pressure P2 of the air duct device 100.

[0030] According to the present invention, as Figure 3 shown, the monitoring unit 5 includes a plurality of detection elements 51 and a control center 52 that is signal-connected to each detection element 51. Each detection element 51 is respectively arranged at the air inlet position of the first air duct body 1, the position of the first heat exchange module 11, the position of the dehumidification module 41, the position of the second heat exchange module 21, and the air inlet position of the third air duct body 3. The control center 52 is signal-connected to the variable-frequency explosion-proof fans 32 arranged at the outlets of the matrix-type exhaust air duct 31. The detection element 51 includes a wind pressure sensor and a humidity sensor, and the wind pressure and humidity at the corresponding positions in the air duct main body can be detected in real time through the detection element 51. The control center 52 is, for example, a computer. Each detection element 51 can detect the relevant parameters at the corresponding positions in the air duct main body in real time and send the detection information to the control center 52. The control center 52 can receive the data information transmitted by the detection element 51 in real time and process it, and then control the operation of the corresponding variable-frequency explosion-proof fan 32 according to the detection signal, thereby adjusting the wind pressure in the air duct main body to keep the ventilation volume of the air duct device 100 unchanged.

[0031] As Figure 4 shown, a plurality of variable-frequency explosion-proof fans 32 are respectively installed at the outlet end of the matrix-type exhaust air duct 31, thus forming a matrix distribution. The detection element 51 is arranged at the inlet end of the matrix-type exhaust air duct 31. Preferably, a wind pressure sensor is respectively provided at the inlet of each unit of the matrix-type exhaust air duct 31. Thus, the wind pressure sensors at the inlets of the respective sub-unit ducts in the matrix-type exhaust air duct 31 correspond to the variable-frequency explosion-proof fans 32 at the outlets of the units. During the working process, each wind pressure sensor detects the wind pressure at the inlet of each unit of the matrix-type exhaust air duct 31 in real time, and the control center 52 controls the corresponding variable-frequency explosion-proof fan 32 in real time according to the wind pressure information at the inlet of the corresponding unit detected by the corresponding wind pressure sensor. Each variable-frequency explosion-proof fan 32 is independent of each other, and the control center 52 separately controls the operation of each variable-frequency explosion-proof fan 32.

[0032] Since the mine ventilation air volume is set based on factors such as the underground state of the mine and the types of volatile substances contained in the roadway coal seams, it is an important guarantee for underground production and personnel safety. The prerequisite for utilizing the exhausted air is that the originally set ventilation volume must not be changed. According to the air duct device 100 of the present invention, the corresponding fan operations of the first air duct body 1, the second air duct body 2, and the third air duct body 3 can be adjusted in real time through the monitoring unit 5 to compensate for the wind pressure losses caused by the first heat exchange module 11, the second heat exchange module 21, and the air duct, so as to ensure that the air inlet wind pressure P1 and the air outlet wind pressure P2 of the air duct device 100 are equal, so that the wind pressure is balanced, which can effectively guarantee underground production and personnel safety.

[0033] According to the present invention, as Figure 3 shown, the dehumidification area 4 is arranged at the connection of the first air duct body 1 and the second air duct body 2, and the dehumidification module 41 is arranged in the dehumidification area 4. After the exhausted air is heat-exchanged by the first heat exchange module 11, the temperature of the exhausted air continuously decreases. When the temperature of the exhausted air is below 0 °C, the potential energy released by the condensation and frosting of water vapor in the first heat exchange module 11 is equal to the heat energy required for defrosting. The dehumidification module 41 is installed at the 0 °C area position of the air duct, and can perform constant-temperature dehumidification treatment on the passing air, so as to ensure that the passing air in the subsequent section is nearly dry air, effectively avoiding or reducing the frosting of the second heat exchange module 21. Thus, the air duct device 100 is in a heating state throughout the process, greatly improving the utilization efficiency of the exhausted air heat energy, which is very beneficial to energy conservation. The 0 °C area position here refers to the area in the air duct device 100 where the temperature is 0 °C. Preferably, the dehumidification module 41 is set to dehumidify at 0 °C according to the actual working conditions, so that the air duct device 100 realizes constant-temperature dehumidification treatment on the passing air in the 0 °C area of the air duct.

[0034] According to the present invention, a water guide groove 8 is provided at the lower ends of the first air duct body 1 and the second air duct body 2, and a diversion hole 72 is provided at the connection of the first air duct body 1 and the second air duct body 2. The condensate water channel 7 is communicated with the water guide groove 8 through the diversion hole 72. Preferably, the water guide groove 8 is arranged at a position below the connection of the first air duct body 1 and the second air duct body 2.

[0035] As Figure 3As shown, the first air duct body 1 and the second air duct body 2 respectively form an angle α and an angle β with the horizontal plane, so that the first air duct body 1 and the second air duct body 2 are connected in a V shape. Preferably, both the angle α and the angle β are set to be within the range of 2 to 10 degrees. This structure of the first air duct body 1 and the second air duct body 2 is conducive to the collection of condensed water at the connection of the first air duct body 1 and the second air duct body 2 for discharge through the diversion holes 72, and can effectively avoid the icing of the fan and the damage of the motor caused by the backflow of condensed water. In addition, this angle setting of the first air duct body 1 and the second air duct body 2 does not affect the normal flow of the exhausted air in the first air duct body 1 and the second air duct body 2. In the specific process, the exhausted air is affected by factors such as wind speed and humidity, so the angle α and the angle β can be designed according to the actual working conditions. Preferably, the angle α can be set to be greater than the angle β.

[0036] Preferably, a condensed water channel 7 is provided at the bottom of the first air duct body 1 and the second air duct body 2, and the condensed water channel 7 extends along the flowing direction of the exhausted air. Since a certain angle is formed between the first air duct body 1 and the second air duct body 2 and the horizontal plane, this can ensure that the condensed water flows into the water guide trough 8 along the condensed water channel 7 under the action of gravity, which is very conducive to the overflow of the condensed water. Preferably, a water-vapor isolation element 71 can be provided above the condensed water channel 7. The water-vapor isolation element 71 can be, for example, a shutter. The water-vapor isolation element 71 can effectively isolate the contact between the exhausted air and the water surface of the condensed water, thereby avoiding the secondary evaporation of the condensed water, effectively avoiding the influence on the heat exchange efficiency of the subsequent stage, and ensuring the heat exchange efficiency of the second heat exchange module 21. At the same time, it can avoid the influence on the water flow of the condensed water in the second air duct body 2 to ensure that the condensed water flows into the water guide trough under the action of gravity.

[0037] Preferably, the air duct device 100 is modularly designed, produced in a standardized factory, and assembled on site, which saves time and effort in actual application, greatly reduces the cost, and effectively ensures the quality of the exhausted air heat pump system.

[0038] The working principle of the air duct device 100 for the exhausted air heat pump system according to the present invention is briefly described below. In actual application, the air duct device 100 is connected to the mine exhaust air wellhead through the air inlet of the first air duct body 1.

[0039] First, the mine exhausted air enters the first air duct body 1 and is cooled by heat exchange through the first heat exchange module 11. After the exhausted air is heat-exchanged by the first heat exchange module 11, the temperature of the exhausted air continuously decreases. When the temperature of the exhausted air is below 0 °C, the potential energy released by the condensation and frosting of the water vapor in the first heat exchange module 11 is equal to the heat energy required for defrosting.

[0040] The exhausted air enters the dehumidification area 4 after being heat-exchanged by the first heat exchange module 11 and is subjected to constant-temperature dehumidification treatment through the dehumidification module 41, so as to ensure that the exhausted air passing through approaches dry air.

[0041] After that, the dry exhausted air enters the second air duct body 2 and is further heat-exchanged and cooled through the second heat exchange module 21.

[0042] After that, the exhausted air after heat exchange and dehumidification enters the third air duct body 3 and is discharged through the matrix exhaust air channel 31.

[0043] During the process of the exhausted air passing through the air duct device 100, the exhausted air passes through the first matrix deflector 6a, the second matrix deflector b, and the matrix exhaust air channel 31, so that laminar flow in the horizontal and vertical directions can be formed in each vertical section of the air duct main body. As a result, the air passing volume of each section in the longitudinal direction of the air duct main body remains the same, so that the air passing volumes of the first heat exchange module 11 and the second heat exchange module 21 are uniform, ensuring that the exhaust air volume is not affected. At the same time, the monitoring unit 5 can detect the relevant parameters at each corresponding position in the air duct main body in real time and send the detection information to the control center 52. The control center 52 receives and processes the data information transmitted by the detection element 51 in real time, and then controls the operation of the variable-frequency explosion-proof fan 32 according to the detection signal to compensate for the wind pressure loss caused by the first heat exchange module 11, the second heat exchange module 21, and the air duct, so as to ensure that the air inlet wind pressure P1 and the air outlet wind pressure P2 of the air duct device 100 are equal, so as to keep the wind pressure balanced and keep the ventilation volume of the air duct device 100 unchanged, thereby ensuring the underground production and personal safety. In addition, the air duct device 100 heat-exchanges and cools the exhausted air through the first heat exchange module 11 and the second heat exchange module 21 in sequence, and performs constant-temperature dehumidification treatment through the dehumidification module 41 to ensure that the exhausted air is nearly dry air in the latter section of the air passage, effectively avoiding frosting of the second heat exchange module 21, better utilizing the direct evaporation method for heat exchange, keeping the air duct device 200 in a heating state throughout the whole process, thereby obtaining the heat of the exhausted air, which is very beneficial to energy conservation and significantly improves the heat exchange efficiency of the exhausted air.

[0044] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0046] In addition, in the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] Finally, it should be noted that the above are only the preferred implementation schemes of the present invention and do not constitute any limitation to the present invention. Although the present invention has been described in detail with reference to the foregoing implementation schemes, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air duct device for a ventilation air heat pump system, comprising: An air duct main body for connecting to the mine exhaust air inlet, which includes a first air duct body (1), a second air duct body (2), and a third air duct body (3) connected in sequence. A first heat exchange module (11) and a second heat exchange module (21) are respectively provided inside the first air duct body (1) and the second air duct body (2); A first matrix deflector (6a) arranged at the air inlet of the first air duct body (1); A second matrix deflector (6b) arranged at the connection between the first air duct body (1) and the second air duct body (2); A matrix-type exhaust air passage (31) provided inside the third air duct body (3); And A monitoring unit (5); Wherein, the air duct device is configured to enable the ventilation air from the mine exhaust air inlet to pass through the first matrix deflector (6a), the second matrix deflector (6b), and the matrix-type exhaust air passage (31) in sequence, so that the air flow rate of each cross-section in the longitudinal direction of the air duct main body remains the same, thereby making the air flow rate of the first heat exchange module (11) and the second heat exchange module (21) uniform, and the monitoring unit (5) can monitor and adjust the air pressure inside the first air duct body (1), the second air duct body (2), and the third air duct body (3) in real time, so as to keep the air pressure at the air inlet of the air duct device balanced with the air pressure at the air outlet. A dehumidification area (4) is provided between the first air duct body (1) and the second air duct body (2), and a dehumidification module (41) is provided in the dehumidification area (4). The dehumidification module (41) can perform constant-temperature dehumidification treatment on the ventilation air from the first air duct body (1).

2. The air duct device for a vitiated air heat pump system according to claim 1, characterized in that, The first matrix deflector (6a), the second matrix deflector (6b), and the matrix-type exhaust air passage (31) are configured to have the same matrix structure.

3. The air duct device for a vitiated air heat pump system according to claim 1 or 2, characterized in that, A variable-frequency explosion-proof fan (32) signal-connected to the monitoring unit (5) is installed at the outlet of the matrix-type exhaust air passage (31). The monitoring unit (5) can control the operation of the variable-frequency explosion-proof fan (32) to adjust the air pressure inside the air duct main body.

4. The air duct device for a vitiated air heat pump system according to claim 3, characterized in that, The monitoring unit (5) includes: A plurality of detection elements (51) respectively arranged at the air inlet of the first air duct body (1), the first heat exchange module (11), the dehumidification module (41), the second heat exchange module (21), and the air inlet of the third air duct body (3); A control center (52) signal-connected to each of the detection elements; Wherein, the control center (52) is signal-connected to the variable-frequency explosion-proof fan (32), and the control center (52) can control the operation of the variable-frequency explosion-proof fan (32) according to the detection signals of each detection element (51) to adjust the air pressure.

5. The air duct device for a mine ventilation heat pump system according to claim 4, characterized in that, The detection element (51) includes a wind pressure sensor and a humidity sensor.

6. The air duct device for the exhausted air heat pump system according to claim 1 or 2, characterized in that, The first air duct body (1) and the second air duct body (2) respectively form an α angle and a β angle with the horizontal plane, so that the first air duct body (1) and the second air duct body (2) are connected in a V shape.

7. The air duct device for a vitiated air heat pump system according to claim 1, characterized in that, A condensate water channel (7) is provided at the bottom of the first air duct body (1) and the second air duct body (2), and a water-vapor isolation element (71) is provided above the condensate water channel (7).

8. The air duct device for a vitiated air heat pump system according to claim 7, characterized in that, A water guide groove (8) is provided at the lower ends of the first air duct body (1) and the second air duct body (2), a diversion hole (72) is provided at the connection between the first air duct body (1) and the second air duct body (2), and the condensate water channel (7) is communicated with the water guide groove (8) through the diversion hole (72).

9. The air duct device for a vitiated air heat pump system according to claim 1 or 2, characterized in that, The air outlet of the third air duct body (3) is arranged to be perpendicular to the outlet end of the second air duct body (2).

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