A circulating water curtain type tunnel cooling and dust removal device

Abstract

The present invention relates to the technical field of tunnel cooling and dust removal, and in particular to a circulating water curtain type tunnel cooling and dust removal device, comprising: a main body support, a plurality of spraying devices, a moisture collection device and a water supply device; the moisture collection device comprises a phase change material interlayer and a cooling water layer, an air inlet is arranged inside the phase change material interlayer, and the cooling water layer covers the outside of the phase change material interlayer; the cooling water layer comprises a cooling water layer inlet and a cooling water layer outlet, and the cooling water layer outlet is connected to the water outlet of the moisture collection device; the water supply device comprises a filter element, a water supply device water inlet is arranged on one side of the filter element, a water supply motor is arranged on the other side of the filter element, and the water supply device water inlet is connected to the water outlet of the moisture collection device; the main body support has a built-in water supply pipeline, and the water supply pipeline connects a plurality of spraying devices and the water supply device. The present invention utilizes tiny water mist to absorb dust and heat, so as to achieve simultaneous cooling and dust removal of the tunnel, without the need for external devices, energy saving and high efficiency, recycling of water, and significant saving of water resources.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel cooling and dust removal, in particular to a circulating water curtain type tunnel cooling and dust removal device. Background Art

[0002] During the construction of subway tunnels, the operation of machines will generate a large amount of dust that fills the confined space. The high concentration of dust in the confined space will create a fire hazard at a certain concentration, accelerate mechanical wear, shorten the service life of large equipment, pollute public places, and have a great adverse effect on the physical and mental health of construction workers. In addition, due to the increase in the temperature of the underground rock and the heat generated by the operation of the machines, the temperature in the tunnel will rise sharply, and the high temperature environment will greatly reduce the construction efficiency. Working in such an unfavorable environment for a long time will cause occupational diseases such as silicosis and pneumoconiosis, which will harm the health of construction workers. Therefore, cooling and dust removal are two major problems that cannot be ignored during tunnel construction.

[0003] At present, it is difficult to achieve the effects of cooling and dust removal at the same time with ordinary technology. Large-scale cooling and dust removal systems will cause a large waste of electricity and have limited effects in small spaces. Summary of the invention

[0004] In order to solve the technical problem that it is difficult to achieve both cooling and dust removal in the tunnel in the prior art, an embodiment of the present invention provides a circulating water curtain type tunnel cooling and dust removal device, the cooling and dust removal device comprising: a main body support with adjustable height,

[0005] A plurality of spray devices are installed on the top of the main frame, and a moisture collection device and a water supply device are arranged at the bottom of the main frame;

[0006] The moisture capture device comprises a phase change material interlayer and a cooling water layer, an air inlet is arranged inside the phase change material interlayer, the cooling water layer covers the outside of the phase change material interlayer, a water storage cavity is arranged at the bottom of the moisture capture device, the air inlet is connected to the water storage cavity, a water outlet of the moisture capture device is arranged in the water storage cavity, and an exhaust fan is arranged in the water storage cavity;

[0007] The cooling water layer comprises a cooling water layer inlet and a cooling water layer outlet, and the cooling water layer outlet is connected to the water outlet of the moisture capture device;

[0008] The water supply device comprises a filter element, the outer side of the filter element is covered with a water filter net, a water inlet of the water supply device is arranged on one side of the filter element, a water supply motor is arranged on the other side of the filter element, and the water inlet of the water supply device is connected to the water outlet of the moisture capture device;

[0009] The main frame has a built-in water supply pipe, which is connected to the plurality of the spraying devices and the water supply device. The water supply motor pumps the water filtered by the water supply device into the water supply pipe and delivers it to the plurality of the spraying devices.

[0010] In a preferred embodiment, the sub-capture device and the water delivery device are cylindrical structures.

[0011] In a preferred embodiment, the phase change material interlayer is filled with high temperature phase change thermal storage material paraffin, and its phase change temperature range is 20°C-90°C.

[0012] In a preferred embodiment, the filter element is filled with activated carbon, and the filling voids are greater than 70%.

[0013] In a preferred embodiment, the spray device includes a small hole throttling device for controlling the spray flow rate of the spray device.

[0014] In a preferred embodiment, the water supply pipe is a height-adjustable water supply pipe.

[0015] In a preferred embodiment, the temperature of the cooling water injected into the cooling water layer inlet of the cooling water layer is less than 20°C.

[0016] In a preferred embodiment, the top surface of the exhaust fan has a symmetrical slope, and the exhaust fan cover is made of hydrophobic material.

[0017] In a preferred embodiment, the water outlet of the moisture collection device is detachably arranged on the outer side of the water storage chamber, forming a distance with the bottom of the water storage chamber, and the water outlet of the moisture collection device is inclined downward;

[0018] The water inlet of the water supply device is detachably arranged on the outer side of the water supply device, forming a distance with the bottom of the water supply device, and the water inlet of the water supply device is inclined upward.

[0019] In a preferred embodiment, the pore size of the water filter is not less than 200 meshes.

[0020] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention include at least:

[0021] The present invention proposes a circulating water curtain type tunnel cooling and dust removal device, which is adapted to tunnels and tunnels of different sizes through an adjustable height main body bracket, and uses the principle of tiny water mist to absorb dust and heat, so as to achieve the purpose of cooling and dust removal in the tunnel at the same time. The tiny water mist is sprayed out through the spray device, and under the action of the exhaust fan, after passing through the air inlet duct surrounding the phase change material, it is deposited in the water storage chamber at the bottom of the moisture capture device, and then combined with the cooling water and transported to the spray device together, which can achieve the recycling of water and greatly save water resources. The heat generated by the liquefaction of the water mist is absorbed by the phase change material, and the cooling water is used to restore the heat absorption capacity. No external device is required, which is energy-saving and efficient.

[0022] The present invention proposes a circulating water curtain type tunnel cooling and dust removal device, which utilizes water in multiple stages and performs cooling and dust removal simultaneously, and has great energy-saving and environmental protection significance for improving the construction environment and recycling water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a front view of a circulating water curtain type tunnel cooling and dust removal device of the present invention.

[0025] Figure 2 It is a stereoscopic diagram of a circulating water curtain type tunnel cooling and dust removal device of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the moisture capture device of the present invention.

[0027] Figure 4 It is a cross-sectional view of the moisture capture device of the present invention.

[0028] Figure 5 It is a cross-sectional view of the water delivery device of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] like Figure 1 The front view of a circulating water curtain type tunnel cooling and dust removal device of the present invention is shown. Figure 2 The three-dimensional diagram of a circulating water curtain type tunnel cooling and dust removal device of the present invention is shown. Figure 3 The schematic diagram of the structure of the moisture capture device of the present invention is shown in FIG. Figure 4 A cross-sectional view of the moisture capture device of the present invention is shown, Figure 5 The cross-sectional view of the water supply device of the present invention is shown. According to an embodiment of the present invention, a circulating water curtain type tunnel cooling and dust removal device includes: a main body bracket 2 with adjustable height.

[0032] A plurality of spray devices 1 are installed on the top of the main support 2, and a moisture collection device 3 and a water supply device 4 are arranged at the bottom of the main support 2. In one embodiment, the main support 2 is a gantry structure, and two groups of moisture collection devices 3 and water supply devices 4 are symmetrically arranged at the bottom of the column support 2.

[0033] According to an embodiment of the present invention, the moisture capture device 3 includes a phase change material interlayer 35 and a cooling water layer 34. An air inlet 36 is provided inside the phase change material interlayer 35, and the cooling water layer 34 covers the outside of the phase change material interlayer 35. The moisture capture device 3 has a water storage cavity at the bottom, and the air inlet 36 is connected to the water storage cavity. The water storage cavity is provided with a moisture capture device water outlet 33, and an exhaust fan 37 is provided in the water storage cavity.

[0034] The exhaust fan 37 draws air, sucking the tiny water mist that absorbs dust and heat in the tunnel into the air inlet duct 36, and then flows into the water storage cavity after being cooled by the phase change material interlayer 35.

[0035] In a preferred embodiment, the exhaust fan 37 is placed at the bottom of the water storage chamber, the top surface of the exhaust fan 37 has a symmetrical slope, and the outer cover of the exhaust fan 37 is made of hydrophobic material. The top surface of the exhaust fan 37 has an angle and uses hydrophobic material to facilitate water drops to roll off.

[0036] The cooling water layer 34 includes a cooling water layer inlet 31 and a cooling water layer outlet 32, and the cooling water layer outlet 32 ​​is connected to the water outlet 33 of the moisture capture device. Cooling water is injected into the cooling water layer inlet 31, and after cooling the phase change material interlayer 35 through the cooling water layer 34, it flows out from the cooling water layer outlet 32, converges to the water outlet 33 of the moisture capture device, and is sent to the water delivery device 4 together with the water flowing out of the water storage chamber.

[0037] In a preferred embodiment, the sub-collection device is a cylindrical structure. The phase change material interlayer 35 is filled with high temperature phase change thermal storage material paraffin, and its phase change temperature range is 20° C.-90° C. The cooling water layer 34, the phase change material interlayer 35 and the air inlet duct 36 are placed concentrically.

[0038] In a preferred embodiment, the temperature of the cooling water injected into the cooling water layer inlet 31 of the cooling water layer 34 is less than 20°C.

[0039] According to an embodiment of the present invention, the water trapping device outlet 33 is detachably arranged on the outer side of the water storage chamber, forming a gap with the bottom of the water storage chamber, and the water trapping device outlet 33 is inclined downward. The water trapping device outlet 33 is detachably arranged to serve as a mud removal port.

[0040] According to an embodiment of the present invention, the water supply device 4 includes a filter element 43, the outer side of the filter element 43 covers a water filter net 42, a water supply device water inlet 41 is arranged on one side of the filter element 43, and a water supply motor 44 is arranged on the other side of the filter element. The water supply device water inlet 41 is connected to the water outlet 33 of the moisture capture device.

[0041] The main frame 2 has a built-in water supply pipe, which is connected to multiple spray devices 1 and a water supply device 4. Water flowing out of the water outlet 33 of the moisture capture device enters the water supply device 4 through the water inlet 41 of the water supply device, and after being filtered by the filter net 42 and the filter element 43, the water filtered by the water supply device 4 is pumped to the water supply pipe by the water supply motor 44 and transported to multiple spray devices 1.

[0042] In a preferred embodiment, the water delivery device 4 is a cylindrical structure. The filter element 43 is filled with activated carbon, and the filling space is greater than 70%. The pore size of the water filter net 42 is not less than 200 meshes.

[0043] In a preferred embodiment, the spray device 1 includes a small hole throttling device for controlling the spray flow of the spray device 1. The water supply pipe is a height-adjustable water supply pipe to adapt to the height adjustment of the main frame 2.

[0044] According to an embodiment of the present invention, a cavity blocked by a water filter net 42 is provided between the water inlet 41 of the water delivery device 4 and the filter element 43, and the water inlet 41 of the water delivery device 4 is detachably arranged on the outer side of the water delivery device 4, forming a gap with the bottom of the water delivery device 4, and the water inlet 41 of the water delivery device is inclined upward. The water inlet 41 of the water delivery device is detachably arranged to serve as a mud removal port.

[0045] The present invention provides a circulating water curtain type tunnel cooling and dust removal device, which utilizes the principle that tiny water mist absorbs dust and heat, and arranges a water curtain structure composed of tiny water mist in a tunnel (such as a subway tunnel or a mine tunnel) to achieve the purpose of tunnel dust and lowering the ambient temperature, creating a suitable working environment, and by adjusting the height of the main support 2, it can adapt to all tunnel construction environments and separate the construction area and the non-construction area.

[0046] The working process of a circulating water curtain type tunnel cooling and dust removal device provided by the present invention is as follows:

[0047] By adjusting the height of the main support 2 to adapt to tunnel sections of different sizes, tiny water mist is sprayed out by multiple spray devices 1 to fully absorb heat and dust in the tunnel. The exhaust fan 37 in the water storage chamber at the bottom of the moisture capture device 3 draws air, and the tiny water mist that absorbs dust and heat in the tunnel is sucked into the air inlet duct 36 wrapped by the phase change material interlayer 35, and flows into the water storage chamber at the bottom of the moisture capture device 3 after being cooled by the phase change material interlayer 35.

[0048] The phase change material interlayer 35 absorbs the heat generated by the liquefaction of the water mist, and is cooled by the cooling water layer 34 covering the outer side of the phase change material interlayer 35. Cooling water is injected into the cooling water layer inlet 31, and after the phase change material interlayer 35 is cooled by the cooling water layer 34, it flows out from the cooling water layer outlet 32, converges to the water outlet 33 of the moisture capture device, and is sent to the water delivery device 4 together with the water flowing out of the water storage chamber.

[0049] The water flowing out of the water outlet 33 of the water collection device 3 enters the water supply device 4 through the water inlet 41 of the water supply device 4, and after being filtered by the filter net 42 and the filter element 43, the water supply motor 44 pumps the filtered water of the water supply device 4 to the water supply pipeline and transports it to multiple spray devices 1.

[0050] The water in the water storage chamber at the bottom of the moisture collection device 3 is sucked into the water by the exhaust fan 37 , undergoes a first sedimentation in the water storage chamber at the bottom of the moisture collection device 3 , flows through the inclined moisture collection device water outlet 33 and reaches the water delivery device 4 .

[0051] There is a cavity blocked by a water filter net 42 between the water inlet 41 of the water supply device 4 and the filter element 43. The water flowing into the cavity through the water inlet 41 of the water supply device 4 completes the second sedimentation, then completes the first filtration through the water filter net 42, and then completes the second filtration through the filter element 43. The water generated after the second filtration is delivered to multiple spray devices 1 through the water supply pipe built into the main frame 2 by the water supply motor 44.

[0052] The muddy water first precipitated in the water storage chamber at the bottom of the moisture trapping device 3 is removed by disassembling the water outlet 33 of the moisture trapping device, and the muddy water second precipitated in the cavity of the water delivery device 4 is removed by disassembling the water inlet 41 of the water delivery device. The filter element 43 is replaced after reaching the service life.

[0053] The present invention provides a circulating water curtain type tunnel cooling and dust removal device, which has good adaptability, obvious cooling and dust removal effect, and circular utilization of water resources, and can be widely used in mine tunnels and subway tunnels.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circulating water curtain type tunnel cooling and dust removal device, characterized in that: The cooling and dust removal device comprises: a main body support with adjustable height, A plurality of spray devices are installed on the top of the main frame, and a moisture collection device and a water supply device are arranged at the bottom of the main frame; The moisture capture device comprises a phase change material interlayer and a cooling water layer, an air inlet is arranged inside the phase change material interlayer, the cooling water layer covers the outside of the phase change material interlayer, a water storage cavity is arranged at the bottom of the moisture capture device, the air inlet is connected to the water storage cavity, a water outlet of the moisture capture device is arranged in the water storage cavity, and an exhaust fan is arranged in the water storage cavity; The cooling water layer comprises a cooling water layer inlet and a cooling water layer outlet, and the cooling water layer outlet is connected to the water outlet of the moisture capture device; The water supply device comprises a filter element, the outer side of the filter element is covered with a water filter net, a water inlet of the water supply device is arranged on one side of the filter element, a water supply motor is arranged on the other side of the filter element, and the water inlet of the water supply device is connected to the water outlet of the moisture capture device; The main frame has a built-in water supply pipeline, the water supply pipeline is connected to the plurality of the spraying devices and the water supply device, and the water supply motor pumps the water filtered by the water supply device to the water supply pipeline and delivers it to the plurality of the spraying devices; After being sprayed by multiple spray devices, the tiny water mist fully absorbs the heat and dust in the tunnel. The exhaust fan in the water storage chamber at the bottom of the moisture capture device draws air, sucking the tiny water mist that absorbs dust and heat in the tunnel into the air inlet duct wrapped by the phase change material interlayer, and then flows into the water storage chamber at the bottom of the moisture capture device after being cooled by the phase change material interlayer; The water flowing out of the water outlet of the moisture collection device enters the water delivery device through the water inlet of the water delivery device, is filtered by the filter net and the filter element, and is then pumped by the water delivery motor to the water delivery pipeline and transported to multiple spray devices.

2. The cooling and dust removal device according to claim 1, characterized in that: The sub-capturing device and the water delivery device are cylindrical structures.

3. The cooling and dust removal device according to claim 1, characterized in that: The phase change material interlayer is filled with high temperature phase change heat storage material paraffin, and its phase change temperature range is 20°C-90°C.

4. The cooling and dust removal device according to claim 1, characterized in that: The filter element is filled with activated carbon, and the filling gap is greater than 70%.

5. The cooling and dust removal device according to claim 1, characterized in that: The spray device comprises a small hole throttling device for controlling the spray flow of the spray device.

6. The cooling and dust removal device according to claim 1, characterized in that: The water supply pipeline is a water supply pipeline with adjustable height.

7. The cooling and dust removal device according to claim 1, characterized in that: The temperature of the cooling water injected into the cooling water layer inlet of the cooling water layer is less than 20°C.

8. The cooling and dust removal device according to claim 1, characterized in that: The top surface of the exhaust fan has symmetrical slopes, and the exhaust fan cover is made of hydrophobic material.

9. The cooling and dust removal device according to claim 1, characterized in that: The water outlet of the moisture collection device is detachably arranged on the outer side of the water storage cavity, forming a distance with the bottom of the water storage cavity, and the water outlet of the moisture collection device is inclined downward; The water inlet of the water supply device is detachably arranged on the outer side of the water supply device, forming a distance with the bottom of the water supply device, and the water inlet of the water supply device is inclined upward.

10. The cooling and dust removal device according to claim 1, characterized in that: The pore size of the water filter is not less than 200 meshes.

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