Hydraulic-driven modular cabinet terminal and air conditioning system

Abstract

This application provides a hydraulically driven combined cabinet terminal and an air conditioning system. The driven combined cabinet terminal includes: a cabinet having an air inlet, an air outlet, and an air duct disposed between the air inlet and the air outlet; a surface cooler disposed within the air duct, including heat exchange tubes, configured to cool the air within the air duct; a hydraulic fan including a blower impeller and a turbine, the blower impeller being configured to drive air from the air inlet through the air duct and then out of the cabinet from the air outlet, the turbine being configured to drive the blower impeller to rotate, including a working chamber, an inlet and an outlet communicating with the working chamber, and a drive impeller disposed within the working chamber, the drive impeller being drivenly connected to the blower impeller; and a water system connecting the heat exchange tubes of the surface cooler and the working chamber of the turbine in series to provide chilled water for heat exchange to the heat exchange tubes of the surface cooler and to provide chilled water for impinging and driving the impeller to rotate to the working chamber of the turbine.

Description

Technical Field

[0001] This application relates to air conditioning equipment, and more particularly to a hydraulically driven combined cabinet terminal and air conditioning system. Background Technology

[0002] Coal plays a crucial role in my country's economic development. With the increasing depth of coal mining in my country, high-temperature heat hazards underground have become a significant factor restricting coal mining operations. To eliminate the impact of mine heat hazards and improve the working environment for coal miners, localized underground cooling and air conditioning systems have been widely used in Chinese mines. These systems effectively solve the problem of high-temperature heat hazards in deep mines, contributing to ensuring mine safety and improving production efficiency.

[0003] In underground localized cooling and air conditioning systems, explosion-proof electric fans are typically used as the air outlet equipment. However, the use of explosion-proof electric fans in underground localized cooling and air conditioning systems suffers from poor adaptability and a tendency to malfunction. Furthermore, due to the high temperature and humidity environment, high levels of dust and coal ash, and the risk of falling debris damaging the protective structure, the operation of the fans while they are energized increases safety hazards.

[0004] The above statements are for the purpose of providing background information in relation to this application only, and do not necessarily constitute prior art. Summary of the Invention

[0005] The purpose of this application is to provide a hydraulically driven terminal unit and air conditioning system that uses a hydraulically driven fan to solve the problems caused by electrically driven fans.

[0006] The first aspect of this application provides a hydraulically driven combined cabinet terminal, comprising:

[0007] The cabinet has an air inlet, an air outlet, and an air duct disposed between the air inlet and the air outlet;

[0008] A surface cooler, disposed within the air duct, includes heat exchange tubes and is configured to cool the air within the air duct;

[0009] A hydraulic fan, comprising an air supply impeller and a water turbine, wherein the air supply impeller is configured to drive air to flow from the air inlet through the air duct and then out of the housing from the air outlet, and the water turbine is configured to drive the air supply impeller to rotate, comprising a working chamber, an inlet and an outlet communicating with the working chamber, and a drive impeller disposed within the working chamber, the drive impeller being drivenly connected to the air supply impeller; and

[0010] A water system is connected in series with the heat exchange tubes of the surface cooler and the working chamber of the water turbine to provide chilled water for heat exchange to the heat exchange tubes of the surface cooler and chilled water for driving the impeller to rotate to the working chamber of the water turbine.

[0011] In the end of the hydraulically driven combination cabinet described in some embodiments,

[0012] Along the flow direction of the chilled water within the water system, the heat exchange tubes of the surface cooler are located upstream of the working chamber of the water turbine; or

[0013] Along the flow direction of the chilled water within the water system, the heat exchange tube of the surface cooler is located downstream of the working chamber of the water turbine.

[0014] In some embodiments of the hydraulically driven combination cabinet, the water system includes a first inlet water path, a connecting water path, and a first outlet water path, wherein...

[0015] The first inlet water flow path is connected to the inlet of the heat exchange tube and is configured to introduce chilled water into the heat exchange tube for heat exchange. The connecting water flow path is connected to the outlet of the heat exchange tube and the inlet of the turbine and is configured to introduce the chilled water flowing out of the heat exchange tube into the turbine to drive the impeller to rotate. The first outlet water flow path is connected to the outlet of the turbine and is configured to draw the chilled water after it has done work out of the turbine; or

[0016] The first inlet water flow path is connected to the inlet of the water turbine and is configured to introduce the chilled water into the water turbine to drive the impeller to rotate. The connecting water flow path is connected to the outlet of the water turbine and the inlet of the heat exchange tube and is configured to introduce the chilled water flowing out of the water turbine into the heat exchange tube for heat exchange. The first outlet water flow path is connected to the outlet of the heat exchange tube and is configured to lead the chilled water after heat exchange out from the heat exchange tube.

[0017] In the end of the hydraulically driven combination cabinet described in some embodiments,

[0018] The water system further includes a first inlet valve, which is disposed on the first inlet flow path and configured to regulate the flow rate of the first inlet flow path; or

[0019] The water system also includes a first outlet valve, which is disposed on the first outlet flow path and configured to regulate the flow rate of the first outlet flow path.

[0020] In some embodiments of the hydraulically driven combined cabinet, the water system further includes a second inlet flow path, which connects the first inlet flow path and the connecting flow path, and is configured to introduce chilled water into the heat exchange tubes without passing through the water turbine; or...

[0021] The water system further includes a second outlet water path, which connects the connecting water path and the first outlet water path, and is configured to draw chilled water out from the heat exchange tube without passing through the water turbine.

[0022] In the end of the hydraulically driven combination cabinet described in some embodiments,

[0023] The water system further includes a second inlet valve, which is disposed on the second inlet flow path and configured to regulate the flow rate of the second inlet flow path; or

[0024] The water system also includes a second outlet valve, which is disposed on the second outlet flow path and configured to regulate the flow rate of the second outlet flow path.

[0025] In some embodiments of the hydraulically driven combined cabinet terminal, the hydraulically driven combined cabinet terminal includes two or more sets of the aforementioned surface coolers connected in parallel; wherein...

[0026] The first inlet water flow path includes a main inlet water path and two or more inlet water branch paths arranged in parallel downstream of the main inlet water path. The inlets of the heat exchange tubes of the two or more sets of surface coolers are respectively connected to the outlets of the two or more inlet water branch paths. The connecting water flow path includes a connecting main path and two or more connecting branch paths arranged in parallel upstream of the connecting main path. The two or more connecting branch paths are respectively connected to the outlets of the heat exchange tubes of the two or more sets of surface coolers; or

[0027] The connecting water flow path includes a main connecting road and two or more connecting branches connected in parallel downstream of the main connecting road. The two or more connecting branches are respectively connected to the inlet of the heat exchange tubes of the two or more sets of surface coolers. The first outlet water flow path includes two or more outlet water branches arranged in parallel and an outlet water main road connected downstream of the two or more outlet water branches. The outlet of the heat exchange tubes of the two or more sets of surface coolers are respectively connected to the inlet of the two or more outlet water branches.

[0028] In some embodiments, the hydraulically driven combination cabinet end includes two hydraulic fans, with two air supply impellers of the two hydraulic fans arranged coaxially and back to back. The surface cooler is located between the two air supply impellers along their axial direction.

[0029] In the end of the hydraulically driven combination cabinet described in some embodiments,

[0030] The hydraulically driven combination cabinet includes two hydraulic fans at its end;

[0031] The water system also includes a connecting pipeline, through which the working chambers of the two turbines of the two hydraulic fans are connected in series or in parallel.

[0032] In some embodiments of the hydraulically driven combination cabinet, the cabinet body includes:

[0033] Framework; and

[0034] A sealing plate, connected to the frame, is used to form the wall of the air duct. The sealing plate includes a double-layered metal plate spaced apart and an insulation plate disposed between the double-layered metal plates.

[0035] In some embodiments, the water system at the end of the hydraulically driven combination cabinet further includes a drain valve located at the bottom of the water system and configured to draw out accumulated water from the water system.

[0036] In some embodiments of the hydraulically driven combination cabinet, the air inlet is located on the side of the cabinet body parallel to the axial direction of the air supply impeller, and the air outlet is located on the end face of the cabinet body perpendicular to the axial direction of the air supply impeller.

[0037] A second aspect of this application provides an air conditioning system, comprising:

[0038] Multiple hydraulically driven modular cabinet ends, wherein the hydraulically driven modular cabinet ends are the hydraulically driven modular cabinet ends described in the first aspect of this application;

[0039] The main inlet pipe, and the multiple first inlet flow paths at the ends of the plurality of hydraulically driven combination cabinets are connected to the main inlet pipe; and

[0040] The main water outlet pipe is connected to the main water outlet pipe, and the multiple first water outlet paths at the ends of the multiple hydraulically driven combination cabinets are connected to the main water outlet pipe.

[0041] In some embodiments of the air conditioning system, the ends of the plurality of hydraulically driven combination cabinets are arranged at intervals along the axial direction of the hydraulic fan.

[0042] Based on the hydraulically driven combined cabinet terminal provided in this application, chilled water flowing into the surface cooler through a water system passes through the turbine of a hydraulic fan. This achieves heat exchange with the air in the duct, and the mechanical energy of the chilled water drives the turbine's impeller to rotate. The turbine then drives the fan of the hydraulic fan, converting the mechanical energy of the chilled water into the kinetic energy of the fan, which then blows the air out of the duct. Especially when the hydraulically driven combined cabinet terminal is used underground in mines, the chilled water transported from the surface to the mine converts a large amount of potential energy into kinetic energy during its descent. The chilled water entering the turbine through the water system has a high flow velocity, directly driving the turbine's impeller. Within the heat exchange tubes of the surface cooler, the chilled water exchanges heat with the air flowing into the duct from the air inlet, cooling the air in the duct. The cooled air is then discharged from the air outlet by the fan. The chilled water, after heat exchange with the air and having performed work, flows out of the hydraulically driven combined cabinet terminal through the first outlet path of the water system. Therefore, the hydraulic drive combination cabinet in this application embodiment can use the mechanical energy of chilled water to drive the impeller on the one hand, and use the low temperature performance of chilled water to cool the air on the other hand, so that there is no need to provide electricity or other energy specifically for driving the fan to rotate, so as to make full and rational use of water resources and facilitate energy conservation and emission reduction.

[0043] The air conditioning system of this application embodiment has the advantages of the hydraulically driven combined cabinet terminal of this application embodiment.

[0044] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0045] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0046] Figure 1 This is a schematic diagram of the end of a hydraulically driven combination cabinet according to an embodiment of this application.

[0047] Figure 2 To and Figure 1 The schematic diagram shown corresponds to a three-dimensional structural diagram of the end of the hydraulically driven combination cabinet in some embodiments of this application.

[0048] Figure 3 for Figure 2 The diagram shows the main view of the end of the hydraulically driven combination cabinet.

[0049] Figure 4 for Figure 2 The diagram shows a top view of the end of the hydraulically driven combination cabinet.

[0050] Figure 5 for Figure 2 The diagram shows the left view of the end of the hydraulically driven combination cabinet.

[0051] Figure 6 for Figure 2 The diagram shows the right view of the end of the hydraulically driven combination cabinet.

[0052] Figure 7 for Figure 2 The diagram shows a three-dimensional structure of the hydraulically driven combination cabinet with some parts of the structure removed.

[0053] Figure 8 for Figure 2 The diagram shows a three-dimensional structure of the hydraulically driven combination cabinet with some parts of the structure removed.

[0054] Figure 9 for Figure 2 The diagram shows a three-dimensional structure of the hydraulic fan at the end of the hydraulic drive unit and the water system pipeline connected to the hydraulic fan.

[0055] Figure 10 for Figure 2 The diagram shows the airflow direction at the end of the hydraulically driven combination cabinet.

[0056] Figure 11 This is a schematic diagram of the end of a hydraulically driven combination cabinet according to some embodiments of this application.

[0057] Figure 12 for Figure 11 The diagram shows the main view of the end of the hydraulically driven combination cabinet.

[0058] Figure 13 for Figure 11 The diagram shows a top view of the end of the hydraulically driven combination cabinet.

[0059] Figure 14 for Figure 11 The diagram shows the left view of the end of the hydraulically driven combination cabinet. Detailed Implementation

[0060] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0061] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0062] In the description of this application, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0063] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0064] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0065] like Figures 1 to 14 As shown, this application provides a hydraulically driven combined cabinet terminal and an air conditioning system.

[0066] The hydraulically driven combined cabinet includes a cabinet body 1, a surface cooler 2, a hydraulic fan 3, and a water system 4. The cabinet body 1 has an air inlet 1A, an air outlet 1B, and an air duct between the air inlet 1A and the air outlet 1B. The surface cooler 2, located within the air duct, includes heat exchange tubes and is configured to cool the air within the air duct. The hydraulic fan 3 includes a blower impeller 31 and a turbine 32. The blower impeller 31 is configured to drive air from the air inlet 1A through the air duct and out of the cabinet body 1 from the air outlet 1B. The turbine 32 is configured to drive the blower impeller 31 to rotate and includes a working chamber, an inlet and an outlet communicating with the working chamber, and a drive impeller located within the working chamber. The drive impeller is drivenly connected to the blower impeller 31. Water system 4 connects the heat exchange tubes of surface cooler 2 and the working chamber of water turbine 32 in series to provide chilled water for heat exchange to the heat exchange tubes of surface cooler 2 and chilled water for impulsive drive of impeller rotation to the working chamber of water turbine 32.

[0067] At the end of the hydraulically driven combination cabinet in this embodiment, the chilled water entering the surface cooler 2 flows through the water turbine 32 of the hydraulic fan 3 via the water system 4. On the one hand, it achieves heat exchange with the air in the duct. On the other hand, the mechanical energy of the chilled water drives the drive impeller of the water turbine 32 to rotate. The water turbine 32 drives the air delivery impeller 31 of the hydraulic fan 3 to rotate, thereby converting the mechanical energy of the chilled water into the kinetic energy of the air delivery impeller 31, and then blowing the air in the duct out through the air delivery impeller 31. Especially when the hydraulically driven combined cabinet is used underground, the chilled water transported from the ground to the mine converts a large amount of potential energy into kinetic energy during its descent. The chilled water entering the turbine 32 through the water system 4 has a high flow velocity, which can directly drive the turbine impeller of the turbine 32. The chilled water in the heat exchange tubes of the surface cooler 2 can exchange heat with the air flowing into the duct from the air inlet 1A, cooling the air in the duct. The cooled air is then discharged from the air outlet 1B through the air supply impeller 31. The chilled water, after exchanging heat with the air and performing work, flows out of the hydraulically driven combined cabinet terminal through the first water outlet path 43 of the water system 4. Therefore, the hydraulically driven combined cabinet terminal of this embodiment can utilize the mechanical energy of the chilled water to drive the impeller, and can also utilize the low-temperature performance of the chilled water to cool the air. This eliminates the need to provide electricity or other energy sources specifically for driving the air supply impeller 31, allowing for the full and rational utilization of hydraulic resources and promoting energy conservation and emission reduction.

[0068] like Figures 1 to 10 As shown, in some embodiments, at the end of the hydraulically driven combination cabinet, along the flow direction of the chilled water in the water system 4, the heat exchange tube of the surface cooler 2 is located upstream of the working chamber of the turbine 32.

[0069] The heat exchange tubes of the surface cooler 2 are located upstream of the working chamber of the turbine 32, which is conducive to making full use of the cooling capacity of the chilled water.

[0070] like Figures 11 to 14As shown, in some embodiments, at the end of the hydraulically driven combination cabinet, along the flow direction of the chilled water in the water system 4, the heat exchange tube of the surface cooler 2 is located downstream of the working chamber of the turbine 32.

[0071] The heat exchange tubes of the surface cooler 2 are located downstream of the working chamber of the turbine 32, which is conducive to making full use of the kinetic energy of the chilled water.

[0072] like Figures 1 to 10 As shown, in some embodiments of the hydraulically driven combined cabinet, the water system 4 includes a first inlet water flow path 41, a connecting water flow path 42, and a first outlet water flow path 43. The first inlet water flow path 41 is connected to the inlet of the heat exchange tube and is configured to introduce chilled water into the heat exchange tube for heat exchange. The connecting water flow path 42 is connected to the outlet of the heat exchange tube and the inlet of the water turbine 32 and is configured to introduce chilled water flowing out of the heat exchange tube into the water turbine 32 to drive the impeller to rotate. The first outlet water flow path 43 is connected to the outlet of the water turbine 32 and is configured to draw the chilled water after work from the water turbine 32.

[0073] With the above arrangement of the water system 4, the heat exchange tubes of the surface cooler 2 can be arranged upstream of the working chamber of the turbine 32.

[0074] like Figures 11 to 14 As shown, in some embodiments of the hydraulically driven combined cabinet, the water system 4 includes a first inlet flow path 41, a connecting flow path 42, and a first outlet flow path 43. The first inlet flow path 41 is connected to the inlet of the turbine 32 and is configured to introduce chilled water into the turbine 32 to drive the impeller to rotate. The connecting flow path 42 is connected to the outlet of the turbine 32 and the inlet of the heat exchange tube and is configured to introduce chilled water flowing out of the turbine 32 into the heat exchange tube for heat exchange. The first outlet flow path 43 is connected to the outlet of the heat exchange tube and is configured to lead the chilled water after heat exchange out of the heat exchange tube.

[0075] With the above arrangement of the water system 4, the heat exchange tubes of the surface cooler 2 can be arranged downstream of the working chamber of the turbine 32.

[0076] like Figures 11 to 14 As shown, in some embodiments, the water system 4 further includes a first inlet valve 47 at the end of the hydraulically driven combination cabinet. The first inlet valve 47 is disposed on the first inlet flow path 41 and is configured to regulate the flow rate of the first inlet flow path 41.

[0077] In some embodiments, the water system at the end of the hydraulically driven combination cabinet also includes a first outlet valve, which is disposed on a first outlet flow path and configured to regulate the flow rate of the first outlet flow path.

[0078] Setting a first inlet valve 47 or a first outlet valve allows for the regulation of the water flow into the turbine 32 and the surface cooler 2 by adjusting the opening degree of the first inlet valve 47 or the first outlet valve. This allows for the adjustment of the turbine 32's rotational speed and the surface cooler 2's heat exchange capacity, thereby regulating the air volume and air temperature at the end of the hydraulic drive unit.

[0079] like Figures 11 to 14 As shown, in some embodiments, at the end of the hydraulically driven combination cabinet, the water system 4 further includes a second water inlet flow path 45, which connects the first water inlet flow path 41 and the connecting water flow path 42, and is configured to introduce chilled water into the heat exchange tube for heat exchange without passing through the water turbine 32.

[0080] In some embodiments not shown, at the end of the hydraulically driven combination cabinet, the water system further includes a second outlet water path, which connects the connecting water path and the first outlet water path 43, and is configured to draw chilled water out from the heat exchange tubes without passing through the water turbine.

[0081] By setting up a second inlet water flow path 45 or a second outlet water flow path, chilled water can be directly introduced into the heat exchange tubes of the surface cooler 2 through the second inlet water flow path 45, or chilled water can be directly drawn out from the surface cooler 2 without passing through the water turbine 32 through the second outlet water flow path. This reduces the correlation between the surface cooler 2 and the water turbine 32, improves the adjustability of the heat exchange capacity of the surface cooler 2, and facilitates better regulation of the air temperature in the space at the end of the hydraulic drive combination cabinet.

[0082] like Figures 11 to 14 As shown, in some embodiments, the water system 4 further includes a second inlet valve 48 at the end of the hydraulically driven combination cabinet. The second inlet valve 48 is disposed on the second inlet flow path 45 and is configured to regulate the flow rate of the second inlet flow path 45.

[0083] In some embodiments, at the end of the hydraulically driven combination cabinet, the water system further includes a second outlet valve, which is disposed on the second outlet flow path and configured to regulate the flow rate of the second outlet flow path.

[0084] The heat exchange capacity of the surface cooler 2 can be adjusted independently by adjusting the opening degree of the second inlet valve 48 or the second outlet valve, which facilitates the independent adjustment of the air temperature without adjusting the air volume.

[0085] like Figures 1 to 10As shown, in some embodiments of the hydraulically driven combined cabinet terminal, the hydraulically driven combined cabinet terminal includes two or more sets of surface coolers 2 connected in parallel. The first inlet water flow path 41 includes a main inlet water path and two or more inlet water branches arranged in parallel downstream of the main inlet water path. The inlets of the heat exchange tubes of the two or more sets of surface coolers 2 are respectively connected to the outlets of the two or more inlet water branches. The connecting water flow path 42 includes a connecting main path and two or more connecting branches connected in parallel upstream of the connecting main path. The two or more connecting branches are respectively connected to the outlets of the heat exchange tubes of the two or more sets of surface coolers 2.

[0086] like Figures 11 to 14 As shown, in some embodiments of the hydraulically driven combined cabinet terminal, the hydraulically driven combined cabinet terminal includes two or more sets of surface coolers 2 connected in parallel. The connecting water flow path 42 includes a connecting main path and two or more connecting branches connected in parallel downstream of the connecting main path, and the two or more connecting branches are respectively connected to the inlet of the heat exchange tubes of the two or more sets of surface coolers 2; the first outlet water flow path 43 includes two or more outlet water branches arranged in parallel and an outlet water main path connected downstream of the two or more outlet water branches, and the outlet of the heat exchange tubes of the two or more sets of surface coolers 2 are respectively connected to the inlet of the two or more outlet water branches.

[0087] The hydraulically driven combination cabinet has multiple sets of surface coolers at the end, which helps to improve the air handling capacity of the hydraulically driven combination cabinet.

[0088] like Figures 1 to 10 As shown, in some embodiments, the hydraulically driven combination cabinet end includes two hydraulic fans 3, and the two air supply impellers 31 of the two hydraulic fans 3 are arranged coaxially and opposite to each other. In the axial direction of the two air supply impellers 31, the surface cooler 2 is located between the two air supply impellers 31.

[0089] Setting up two hydraulic fans 3 helps to improve the air handling capacity of the hydraulically driven combination cabinet at the end.

[0090] like Figures 1 to 10 As shown, in some embodiments, the hydraulic drive combination cabinet end includes two hydraulic fans 3; the water system 4 also includes a connecting pipe 44, and the working chambers of the two water turbines 32 of the two hydraulic fans 3 are connected in series or in parallel through the connecting pipe 44.

[0091] The two water turbines 32 can be driven to rotate simultaneously by the connecting pipe 44 through chilled water, which is conducive to the synchronous and coordinated operation of the two water turbines 32 and helps to reduce the complexity and length of the water system 4.

[0092] In some embodiments of the hydraulically driven combination cabinet, the cabinet 1 includes a frame 11 and a sealing plate 12. The sealing plate 12 is connected to the frame 11 and forms the wall of the air duct. The sealing plate 12 includes spaced-apart double-layer metal plates and an insulation plate disposed between the double-layer metal plates.

[0093] The sealing plate 12 is designed with a double-layer metal plate and an insulation board sandwich structure, which facilitates the insulation of the air inside the air duct and also provides flame retardant and anti-static functions. The insulation board can be, for example, a polyurethane board.

[0094] In some embodiments, at the end of the hydraulically driven combination cabinet, the water system 4 also includes a drain valve 46, which is located at the bottom of the water system 4 and is configured to draw out accumulated water from the water system 4.

[0095] The drain valve 46 allows for the drainage of accumulated water in the water system 4 during maintenance, facilitating the maintenance work. Additionally, when the air conditioning system is not in use, the drain valve 46 can also drain the water from the water system 4, preventing corrosion caused by water accumulation.

[0096] In some embodiments, at the end of the hydraulically driven combination cabinet, the air inlet 1A is located on the side of the cabinet 1 parallel to the axial direction of the air supply impeller 31, and the air outlet 1B is located on the end face of the cabinet 1 perpendicular to the axial direction of the air supply impeller 31.

[0097] By properly positioning the air inlet 1A and air outlet 1B, the flow rate of the air processed at the end of the hydraulically driven combination cabinet can be increased.

[0098] This application embodiment also provides an air conditioning system, which includes multiple hydraulically driven modular cabinet terminals. The hydraulically driven modular cabinet terminals are those described in this application embodiment. The air conditioning system also includes an inlet main pipe and an outlet main pipe. Multiple first inlet flow paths 41 of the multiple hydraulically driven modular cabinet terminals are connected to the inlet main pipe. Multiple first outlet flow paths 43 of the multiple hydraulically driven modular cabinet terminals are connected to the outlet main pipe.

[0099] This air conditioning system can supply chilled water to the terminals of multiple hydraulically driven combination cabinets located in different positions through the same inlet and outlet water mains, thereby reducing the water pipes required for water intake and exhaust from the air conditioning system, which helps to save costs and reduce operation.

[0100] In some embodiments of the air conditioning system, multiple hydraulically driven combination cabinets are arranged at intervals along the axial direction of the hydraulic fan 3. This arrangement facilitates the placement of the air conditioning system in narrow spaces. For example, the air conditioning system can be placed along the mine tunnel, reducing the lateral space occupied by the air conditioning system and thus facilitating passage and operations.

[0101] The following combination Figures 1 to 14 The hydraulically driven combined cabinet terminal and air conditioning system of some embodiments of this application will be further described. For parts not described in the following embodiments, please refer to the relevant descriptions in other parts of this application.

[0102] Figures 1 to 10 The diagram illustrates the end of a hydraulically driven modular cabinet according to some embodiments of this application. The hydraulically driven modular cabinet mainly includes a cabinet body 1, a surface cooler 2, a hydraulic fan 3, and a water system 4. This hydraulically driven modular cabinet can be used for cooling air in mines and is suitable for environments with high temperature, high humidity, high dust, and high coal ash content. The hydraulically driven modular cabinet and air conditioning system utilize chilled water supplied from the surface to the mine to cool the air and use the gravitational potential energy of the chilled water to drive the hydraulic fan 3 to deliver air. The frame 11 of the cabinet body 1 is an integrally welded frame 11. The frame 11 is welded from multiple upper and lower horizontal beams, multiple upper and lower longitudinal beams, and multiple columns. A water collection tray 14 for receiving condensate is provided at the bottom of the frame 11. A drain outlet is provided along the edge of the water collection tray 14. A drain pipe 6 is connected to the drain outlet and is located at the lower rear side of the frame 11. The drain pipe 6 guides the water in the water collection tray 14 to the desired location. Lifting lugs 15 for hoisting the cabinet body 1 are provided on the outside of the frame 11. To improve the strength of cabinet 1, reinforcing beams can also be installed locally.

[0103] All parts of the cabinet 1 that do not have air inlets 1A and air outlets 1B are equipped with sealing plates 12 or access doors. The sealing plates 12 or access doors are installed on the frame 11. The sealing plates 12 are double-layered metal with an internal polyurethane insulation layer. The sealing plates 12 are used to seal the internal air duct of the cabinet 1, protect the components inside the air duct, and also have flame-retardant, anti-static and heat-insulating properties.

[0104] The turbine 32 is mounted on the turbine mounting beam 111. The turbine 32 includes a turbine casing, a drive impeller, bearings, a drive shaft, a mechanical shaft seal, a safety valve, etc.

[0105] The air supply impeller 31 includes multiple blades, which are mounted on the drive shaft of the water turbine 32 and located at the air outlet 1B of the cabinet 1. The power output from the drive shaft drives the air supply impeller 31 to rotate, thereby driving the airflow in the air duct.

[0106] A shroud 13 is installed outside the air supply impeller 31. The shroud 13 is mounted on the frame 11 and coaxially assembled with the air supply impeller 31. The shroud 13 can be formed by spinning. By reasonably setting the spinning angle of the shroud 13, the airflow can be organized in a reasonable manner, the flow field can be optimized, and the overall heat exchange efficiency can be improved.

[0107] A mesh cover 16 is installed on the side of the fairing 13 away from the frame 11. The mesh cover 16 can protect the fan blades.

[0108] exist Figures 1 to 10 In the embodiment shown, the end of the hydraulically driven combination cabinet includes two hydraulic fans 3, which are coaxially arranged opposite each other at both ends of the cabinet 1 where an air outlet 1B is located. Figures 2 to 4The air outlet 1B is located on the left and right ends of the cabinet 1. The first water inlet path 41, the connecting water path 42, and the first water outlet path 43 of the water system 4 are all arranged at the end where the hydraulic fan 3 is located.

[0109] The surface cooler 2 includes heat exchange tubes, fins, branch mains, and an outer structural frame 11. The surface cooler 2 is installed within the frame 11 to achieve air-water heat exchange. Two sets of surface coolers 2 are arranged side-by-side. Along the flow direction of the chilled water within the water system 4, the heat exchange tubes of the surface cooler 2 are located upstream of the working chamber of the turbine 32. The water system 4 can be connected to the heat exchange tubes via branch mains.

[0110] like Figures 1 to 10 As shown, the water system 4 includes a first inlet water flow path 41, a connecting water flow path 42, a first outlet water flow path 43, and a connecting pipe 44.

[0111] The first water inlet path 41 is connected to the inlet of the heat exchange tube via a branch main pipe. In this embodiment, two sets of surface coolers 2 are arranged opposite each other on both sides of the cabinet 1 at the location of the air inlet 1A, and both sets of surface coolers 2 are parallel to the axis of the hydraulic fan 3. The first water inlet path 41 includes a main water inlet path and two water inlet branches arranged in parallel downstream of the main water inlet path. The inlets of the branch main pipes of the two sets of surface coolers 2 are respectively connected to the outlets of the two water inlet branches.

[0112] The water flow path 42 is connected to the outlet of the heat exchange tubes and the inlet of the turbine 32. The water flow path 42 includes a main flow path and two connecting branches connected in parallel upstream of the main flow path. The two connecting branches are respectively connected to the outlets of the heat exchange tubes of the two sets of surface coolers 2. The main flow path is connected to the turbine 32 of the two hydraulic fans 3. Figures 7 to 10 The working chambers of the two water turbines 32 (on the left side) are connected. The working chambers of the two water turbines 32 are connected in series through the connecting pipe 44 of the water system 4. The connecting pipe 44 is connected to one of the two water turbines 32 (on the left side). Figures 7 to 10 The exit on the left and another ( Figures 7 to 10 Between the imports on the right side.

[0113] First water outlet path 43 and water turbine 32 ( Figures 7 to 10 The exit connection is on the right side.

[0114] The water system 4 is installed on the frame 11 by multiple supports 5, which realizes the function of fixing and restraining the water system 4 pipeline, and helps to avoid fatigue fracture of the pipeline due to vibration displacement caused by excessive cantilever length.

[0115] The water system 4 includes a drain valve 46. The drain valve 46 is installed at the bottom of the water system 4 to drain the water inside the water system 4 when the system is stopped. In this embodiment, the drain valve 46 is located below the middle of the connecting pipe 44 between the two hydraulic fans 3.

[0116] In an alternative embodiment of this example, a first inlet valve may be provided on the first inlet flow path, and / or a first outlet valve may be provided on the first outlet flow path.

[0117] In an alternative embodiment of this invention, the water system may further include a second outlet water path, which connects the connecting water path and the first outlet water path, to draw chilled water out from the heat exchange tubes without passing through the water turbine. A second outlet valve may also be provided on the second outlet water path.

[0118] Figures 11 to 14 The illustrated embodiments and Figures 1 to 10 The main difference in the illustrated embodiments is that Figures 11 to 14 The illustrated embodiment includes a hydraulic fan 3. Furthermore, along the flow direction of the chilled water within the water system 4, the heat exchange tubes of two sets of surface coolers 2 are connected in parallel and located downstream of the working chamber of the turbine 32.

[0119] like Figures 11 to 14 As shown, in some embodiments, the water system 4 at the end of the hydraulically driven combination cabinet includes a first inlet water flow path 41, a connecting water flow path 42, a first outlet water flow path 43, and a second inlet water flow path 45.

[0120] The first water inlet flow path 41 is connected to the inlet of the water turbine 32.

[0121] The outlet of the water flow path 42 and the inlet of the heat exchange tubes of the surface cooler 2 are connected via a branch main pipe. For example... Figure 11 As shown, the connecting water flow path 42 includes a main connecting path and two connecting branches connected in parallel downstream of the main connecting path. The two connecting branches are respectively connected to the inlet of the heat exchange tubes of the two sets of surface coolers 2.

[0122] The first water outlet path 43 is connected to the outlet of the heat exchange tubes of the surface cooler 2. The first water outlet path 43 includes two water outlet branches arranged in parallel and a main water outlet path connected downstream of the two water outlet branches. The outlets of the heat exchange tubes of the two sets of surface coolers 2 are respectively connected to the inlet of the two water outlet branches.

[0123] The second water inlet path 45 connects the first water inlet path 41 and the connecting water inlet path 42.

[0124] like Figure 11 As shown, the water system 4 also includes a first inlet valve 47 and a second inlet valve 48. The first inlet valve 47 is disposed on the first inlet flow path 41, and the second inlet valve 48 is disposed on the second inlet flow path 45 and is configured to regulate the flow rate of the second inlet flow path 45.

[0125] In an alternative embodiment of this example, a first outlet valve may also be provided in the first outlet flow path. Figures 11 to 14For any parts not described in the illustrated embodiments, please refer to the relevant content in the rest of this application.

[0126] An embodiment of the air conditioning system of this application uses multiple (e.g., 2, 4, 5, or 6) hydraulically driven combination cabinet terminals arranged at intervals along the axial direction of the hydraulic fan 3, which are combined with an inlet main pipe and an outlet main pipe. Each first inlet flow path 41 of the multiple hydraulically driven combination cabinet terminals is connected to the inlet main pipe. Each first outlet flow path 43 of the multiple hydraulically driven combination cabinet terminals is connected to the outlet main pipe.

[0127] like Figures 1 to 14 As shown, the inlet 4A and outlet 4B of the water system 4 are located at the inlet end of the first inlet flow path 41 and the outlet end of the first outlet flow path 43, respectively. Both are located outside the front side of the frame 1, and the inlet end of the inlet flow path 41 and the outlet end of the first outlet flow path 43 are respectively provided with flanges for connecting to the inlet main pipe and the outlet main pipe.

[0128] Multiple modular hydraulically driven combination cabinets can be combined as needed to form an air conditioning system. The spacing between the hydraulically driven combination cabinets can be appropriately set to meet the different air temperature regulation needs of different locations in a narrow area.

[0129] In this embodiment of the application, during operation of the hydraulically driven combined cabinet terminal and air conditioning system, chilled water from the ground flows towards the coal face. Due to the significant drop between the ground and the coal face, the gravitational potential energy of the chilled water is converted into kinetic energy, forming a chilled water flow with a certain velocity. The chilled water enters the heat exchange tubes of the surface cooler 2 and the working chamber of the turbine 32 through the first inlet flow path 41. The chilled water entering the working chamber drives the drive impeller of the turbine 32 to rotate. The drive impeller drives the fan blades on the air supply impeller 32 connected to the drive shaft to move in the same direction and at the same speed as the drive impeller, thereby guiding the air in the environment of the hydraulically driven combined cabinet terminal into the air duct of the cabinet 1 through the air inlet 1A, and performing forced convection with the surface cooler 2 in the air duct. The flow inside the heat exchange tubes of the surface cooler 2 consists of chilled water after passing through the turbine 32 and chilled water flowing directly into the heat exchange tubes. The air outside the heat exchange tubes exchanges heat with the chilled water inside the heat exchange tubes, through, for example... Figure 10 The air is transported in the direction shown, and finally cold air is output from the air outlet 1B, so as to reduce the temperature of the area around the end of the hydraulically driven combination cabinet.

[0130] As can be seen from the above description, the hydraulically driven combined cabinet terminal and air conditioning system of the present application embodiment have at least one of the above advantages:

[0131] The integrated design of the hydraulically driven modular cabinet terminal allows multiple hydraulically driven modular cabinet terminals to be assembled into an air conditioning system, reducing engineering complexity and easily meeting various cooling needs.

[0132] The hydraulically driven terminal unit and air conditioning system achieve power-free operation, which helps reduce the risk of explosion, is safer and more reliable, and meets the safety requirements of areas with low wind risk and no power supply.

[0133] When installing in the coal mining area, there is no need to install the hydraulically driven combination cabinet terminal or air conditioning system in the fresh air area for safety reasons.

[0134] Chilled water can be transported from the ground, converting the gravitational potential energy of the previously unused chilled water into energy to drive the water turbine. This not only makes reasonable use of resources but also eliminates the need for additional electricity or other energy to drive the turbine, thus saving energy and reducing emissions.

[0135] The hydraulically driven combined cabinet and air conditioning system have air outlets at one or both ends and side air intakes, with forced heat exchange. The air supply impeller is driven to rotate by the gravitational potential energy of the chilled water, which is suitable for the narrow environment of the mine tunnel.

[0136] The second outlet or inlet water flow path enables the surface cooler's heat exchange capacity to be adjusted independently of the drive impeller and the air supply impeller.

[0137] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features, all of which should be covered within the scope of the technical solutions claimed in this application.

Claims

1. A hydraulically driven combined cabinet end, characterized in that, include: The cabinet (1) has an air inlet (1A), an air outlet (1B) and an air duct disposed between the air inlet (1A) and the air outlet (1B); A surface cooler (2) is disposed in the air duct and includes heat exchange tubes, and is configured to cool the air in the air duct; A hydraulic fan (3) includes an air supply impeller (31) and a water turbine (32). The air supply impeller (31) is configured to drive the air to flow from the air inlet (1A) through the air duct and then out of the cabinet (1) from the air outlet (1B). The water turbine (32) is configured to drive the air supply impeller (31) to rotate. The fan includes a working chamber, an inlet and an outlet communicating with the working chamber, and a drive impeller disposed in the working chamber. The drive impeller is drivenly connected to the air supply impeller (31). and A water system (4) is connected in series with the heat exchange tubes of the surface cooler (2) and the working chamber of the water turbine (32) to provide chilled water for heat exchange to the heat exchange tubes of the surface cooler (2) and chilled water for driving the impeller to rotate to the working chamber of the water turbine (32). The water system (4) includes a first inlet flow path (41), a connecting flow path (42), and a first outlet flow path (43). Along the flow direction of the chilled water in the water system (4), the heat exchange tube of the surface cooler (2) is located upstream of the working chamber of the water turbine (32). The first inlet water flow path (41) is connected to the inlet of the heat exchange tube and is configured to introduce the chilled water into the heat exchange tube for heat exchange. The connecting water flow path (42) is connected to the outlet of the heat exchange tube and the inlet of the water turbine (32) and is configured to introduce the chilled water flowing out of the heat exchange tube into the water turbine (32) to drive the impeller to rotate. The first outlet water flow path (43) is connected to the outlet of the water turbine (32) and is configured to draw the chilled water after work from the water turbine (32). The water system also includes a second outlet water flow path, which connects the connecting water flow path and the first outlet water flow path and is configured to draw the chilled water out from the heat exchange tube without passing through the water turbine. or Along the flow direction of the chilled water in the water system (4), the heat exchange tube of the surface cooler (2) is located downstream of the working chamber of the turbine (32). The first inlet flow path (41) is connected to the inlet of the turbine (32) and is configured to introduce the chilled water into the turbine (32) to stimulate the drive impeller to rotate. The connecting flow path (42) is connected to the outlet of the turbine (32) and the inlet of the heat exchange tube and is configured to draw water from the turbine... The chilled water flowing out of the turbine (32) is introduced into the heat exchange tube for heat exchange. The first outlet water flow path (43) is connected to the outlet of the heat exchange tube and is configured to lead the chilled water after heat exchange out from the heat exchange tube. The water system (4) also includes a second inlet water flow path (45), which is connected to the first inlet water flow path (41) and the connecting water flow path (42) and is configured to introduce the chilled water into the heat exchange tube for heat exchange without passing through the turbine (32).

2. The end of the hydraulically driven combined cabinet according to claim 1, characterized in that, The water system (4) further includes a first inlet valve (47), which is disposed on the first inlet flow path (41) and configured to regulate the flow rate of the first inlet flow path (41); or The water system also includes a first outlet valve, which is disposed on the first outlet flow path and configured to regulate the flow rate of the first outlet flow path.

3. The end of the hydraulically driven combined cabinet according to claim 1, characterized in that, The water system (4) further includes a second inlet valve (48), which is disposed on the second inlet flow path (45) and configured to regulate the flow rate of the second inlet flow path (45); or The water system also includes a second outlet valve, which is disposed on the second outlet flow path and configured to regulate the flow rate of the second outlet flow path.

4. The end of the hydraulically driven combined cabinet according to claim 1, characterized in that, The hydraulically driven combination cabinet includes two or more sets of the aforementioned surface coolers (2) connected in parallel at its end; wherein, The first inlet water flow path (41) includes a main inlet water path and two or more inlet water branches arranged in parallel downstream of the main inlet water path. The inlets of the heat exchange tubes of the two or more sets of surface coolers (2) are respectively connected to the outlets of the two or more inlet water branches. The connecting water flow path (42) includes a connecting main path and two or more connecting branches connected in parallel upstream of the connecting main path. The two or more connecting branches are respectively connected to the outlets of the heat exchange tubes of the two or more sets of surface coolers (2); or The connecting water flow path (42) includes a connecting main path and two or more connecting branches connected in parallel downstream of the connecting main path. The two or more connecting branches are respectively connected to the inlet of the heat exchange tubes of the two or more sets of surface coolers (2). The first outlet water flow path (43) includes two or more outlet water branches arranged in parallel and an outlet water main path connected downstream of the two or more outlet water branches. The outlet of the heat exchange tubes of the two or more sets of surface coolers (2) are respectively connected to the inlet of the two or more outlet water branches.

5. The end of the hydraulically driven combined cabinet according to any one of claims 1 to 4, characterized in that, The hydraulically driven combination cabinet includes two hydraulic fans (3) at the end. The two air supply impellers (31) of the two hydraulic fans (3) are arranged coaxially and opposite to each other. The surface cooler (2) is located between the two air supply impellers (31) in the axial direction of the two air supply impellers (31).

6. The end of the hydraulically driven combined cabinet according to any one of claims 1 to 4, characterized in that, The hydraulically driven combination cabinet includes two hydraulic fans (3) at its end; The water system (4) also includes a connecting pipe (44), through which the working chambers of the two water turbines (32) of the two hydraulic fans (3) are connected in series or in parallel.

7. The end of the hydraulically driven combined cabinet according to any one of claims 1 to 4, characterized in that, The cabinet (1) includes: Frame (11); and A sealing plate (12) is connected to the frame (11) and is used to form the wall of the air duct. The sealing plate (12) includes a double-layer metal plate spaced apart and an insulation plate disposed between the double-layer metal plates.

8. The end of the hydraulically driven combined cabinet according to any one of claims 1 to 4, characterized in that, The water system (4) also includes a drain valve (46) located at the bottom of the water system (4) and configured to draw out the water accumulated in the water system (4).

9. The end of the hydraulically driven combination cabinet according to any one of claims 1 to 4, characterized in that, The air inlet (1A) is located on the side of the cabinet (1) parallel to the axial direction of the air supply impeller (31), and the air outlet (1B) is located on the end face of the cabinet (1) perpendicular to the axial direction of the air supply impeller (31).

10. An air conditioning system, characterized in that, include: Multiple hydraulically driven combination cabinet ends, wherein the hydraulically driven combination cabinet ends are the hydraulically driven combination cabinet ends according to any one of claims 1 to 9; The main water inlet pipe is connected to the main water inlet pipe, and the multiple first water inlet flow paths (41) at the ends of the multiple hydraulically driven combination cabinets are connected to the main water inlet pipe; and The main outlet pipe is connected to the main outlet pipe, and the multiple first outlet flow paths (43) at the ends of the multiple hydraulically driven combination cabinets are connected to the main outlet pipe.

11. The air conditioning system according to claim 10, characterized in that, The ends of the plurality of hydraulically driven combination cabinets are arranged at intervals along the axial direction of the hydraulic fan (3).

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