A sand settling filter device and air intake system

Abstract

The present invention provides a sand settling and filtering device and an air intake system, wherein the sand settling and filtering device includes a gravity sand settling unit and a dust collection unit. The gravity sand settling unit includes a sand settling housing, an air inlet pipe, an air outlet pipe, and a dust blocking assembly. The bottom of the sand settling housing is connected to the dust collection unit. The air inlet pipe and the air outlet pipe are respectively connected to the two sides of the sand settling housing, and the horizontal height of the air inlet pipe is lower than that of the air outlet pipe. The dust blocking assembly is arranged inside the sand settling housing to block dust from the air introduced into the sand settling housing. The height difference between the air inlet pipe and the air outlet pipe allows some sand and gravel to fall directly into the dust collection unit. Combined with the dust blocking assembly, it further blocks the dust, effectively improving the filtering effect.

Description

Technical Field

[0001] The present invention relates to the field of heating and ventilation, and in particular to a sand settling and filtering device and an air intake system. Background Art

[0002] HVAC is an integral part of a building, encompassing heating, ventilation, and air conditioning. Ventilation, in particular, involves using fans and ducts to improve the indoor air quality through ventilation. Currently, ventilation systems also incorporate filters to condition the incoming air, particularly in windy and dusty areas. This prevents outdoor wind from carrying dust and fine sand particles into the ducts, where they enter the fans and related equipment, potentially impacting the efficiency of HVAC equipment and indoor air quality. For example, fans can become stuck, shortening their service life. Larger sand particles can erode and wear the duct surface, causing noise. Dust entering the room through the air intake system can also degrade indoor air quality, causing discomfort and harming the health of those inside.

[0003] Currently, filters are installed in air ducts to filter outdoor air. However, once the filters are covered with sand and dust, they will block the passage of outdoor air. At this time, the air duct needs to be dismantled to replace the filters, which is not only inconvenient to use but also increases maintenance costs. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a sand filter device and air intake system that is maintenance-free, easy to operate, and has a wide range of applications. It can effectively reduce sand and dust, extend the service life of equipment, fans and air ducts, avoid working noise, optimize indoor air quality, and reduce the difficulty of operation and maintenance.

[0005] In accordance with one purpose of the present invention, the present invention provides a sand settling and filtering device, including a gravity sand settling unit and a dust collecting unit, the gravity sand settling unit including a sand settling shell, an air inlet pipe, an air outlet pipe and a dust blocking assembly, the bottom of the sand settling shell is connected to the dust collecting unit, the air inlet pipe and the air outlet pipe are respectively connected to the two sides of the sand settling shell, and the horizontal height of the air inlet pipe is lower than the horizontal height of the air outlet pipe, and the dust blocking assembly is arranged inside the sand settling shell to block the dust from the wind introduced into the sand settling shell.

[0006] As a preferred embodiment, the air inlet pipe has an upper air inlet edge and a lower air inlet edge connected to the sand settling shell, the dust blocking assembly is connected to the upper air inlet edge, an air inlet slope is formed between the lower air inlet edge and the sand settling shell, and the air inlet slope is opposite to the dust blocking assembly.

[0007] As a preferred embodiment, the dust blocking assembly includes an air inlet dust blocking plate and an air inlet power member, the air inlet dust blocking plate is rotatably connected to the upper edge of the air inlet, and the air inlet power member is transmission-connected to the air inlet dust blocking plate to drive the air inlet dust blocking plate to rotate.

[0008] As a preferred embodiment, the air outlet pipe has an air outlet lower edge connected to the sand settling shell, the dust blocking component is connected to the air outlet lower edge, and the sand settling shell has an air outlet slope located below the air outlet lower edge and opposite to the dust blocking component.

[0009] As a preferred embodiment, the dust-blocking assembly includes an air outlet dust-blocking plate and an air outlet power component, the air outlet dust-blocking plate is rotatably connected to the lower edge of the air outlet, and the air outlet power component is transmission-connected to the air outlet dust-blocking plate to drive the air outlet dust-blocking plate to rotate.

[0010] As a preferred embodiment, the dust collecting unit includes a dust collecting shell and a dust collecting sensor. The dust collecting shell is connected to the bottom of the sand settling shell. The dust collecting sensor is arranged on the dust collecting shell to sense the dust collection situation in the dust collecting shell.

[0011] As a preferred embodiment, the dust collecting unit further includes a transparent observation window and / or a signal prompt light, the transparent observation window and the signal prompt light are arranged on the dust collecting shell, and the signal prompt light is linked to the dust collecting sensor.

[0012] As a preferred embodiment, it further comprises an automatic sand discharge unit, which is arranged at the bottom of the gravity sand settling unit.

[0013] As a preferred embodiment, the automatic sand removal unit includes a flap.

[0014] According to another object of the present invention, the present invention also provides an air intake system, including the sand settling filtering device of the above embodiment, the air intake system also includes a fan and an air valve, and the fan and the air valve are arranged on the pipe inside the room connected to the air outlet pipe.

[0015] Compared with the existing technology, this technical solution has the following advantages:

[0016] The outdoor wind is introduced into the interior of the sand settling shell through the air inlet pipe, and the dust is blocked by the dust blocking component provided in the sand settling shell, so that the dust-blocked wind is introduced into the room through the air outlet pipe, achieving the purpose of air intake, and the dust blocked by the dust blocking component falls directly into the dust collection unit. Compared with the traditional filter structure, it effectively avoids the defects of difficult disassembly and assembly caused by replacing the filter and high maintenance cost. The height difference between the air inlet pipe and the air outlet pipe allows some sand and gravel to fall directly into the dust collection unit, and is further blocked by the dust blocking component, effectively improving the filtering effect. It avoids the noise and wear caused by the wear of the air duct by particles in the wind, effectively extending the service life of the equipment, fan and air duct, and at the same time has the advantages of optimizing indoor air quality, reducing the difficulty of operation and maintenance, easy installation, maintenance-free, simple operation, and wide application. By providing a rotatable flap at the bottom of the gravity sand settling unit, dust overflow is prevented, and secondary dusting of the dust collection unit during the operation of the air inlet system is avoided. The dust collection unit also includes the transparent observation window, the signal prompt light and the dust collection sensor, which can be used to observe the dust collection situation inside the dust collection unit. The signal prompt light can also be linked with the dust collection sensor to remind the staff to clean up in time, thereby facilitating operation and maintenance management.

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the sand filtering device of the air intake system of the present invention;

[0019] Figure 2 This is a schematic structural diagram of the gravity sedimentation unit of the present invention;

[0020] Figure 3 Schematic diagram of the structure of the dust collection unit of the present invention;

[0021] Figure 4 This is a structural schematic diagram of the automatic sand discharge unit of the present invention. DETAILED DESCRIPTION

[0022] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0023] like Figure 1As shown, the sand settling filtering device 100 includes a gravity sand settling unit 110 and a dust collecting unit 130. The gravity sand settling unit 110 includes a sand settling shell 111, an air inlet pipe 112, an air outlet pipe 113 and a dust blocking component 114. The bottom of the sand settling shell is connected to the dust collecting unit 130. The air inlet pipe 112 and the air outlet pipe 113 are respectively connected to the two sides of the sand settling shell 111, and the horizontal height of the air inlet pipe 112 is lower than the horizontal height of the air outlet pipe 113. The dust blocking component 114 is arranged inside the sand settling shell 111 to block the dust from the wind introduced into the sand settling shell 111.

[0024] The outdoor wind is introduced into the interior of the sand settling shell 111 through the air inlet pipe 112, and is dust-blocked by the dust-blocking assembly 114 provided in the sand settling shell 111, so that the dust-blocked wind is introduced into the room through the air outlet pipe 113, achieving the purpose of air intake, and the dust trapped by the dust-blocking assembly 114 falls directly into the dust collecting unit 130. Compared with the traditional filter structure, it effectively avoids the defects of difficulty in disassembly and assembly and high maintenance cost caused by replacing the filter. The height difference between the air inlet pipe 112 and the air outlet pipe 113 allows some sand and gravel to fall directly into the dust collecting unit 130, and is further blocked by the dust-blocking assembly 114, effectively improving the filtering effect. It avoids the noise and wear caused by the wear of the air duct by particles in the wind, effectively prolongs the service life of the equipment, fan and air duct, and has the advantages of optimizing indoor air quality, reducing the difficulty of operation and maintenance, easy installation, maintenance-free, simple operation, and wide application.

[0025] like Figure 1 and Figure 2 As shown, the air inlet pipe 112 has an upper air inlet edge 1121 and an air inlet lower edge 1122 connected to the sand settling shell 111, the dust blocking component 114 is connected to the upper air inlet edge 1121, and an air inlet slope 1111 is formed between the lower air inlet edge 1122 and the sand settling shell 111, and the air inlet slope 1111 is opposite to the dust blocking component 114.

[0026] Air drawn in from the air inlet duct 112 is blocked by the dust blocking assembly 114, allowing the blocked dust to flow directly through the air inlet slope 1111 into the dust collection unit 130, further improving collection efficiency. The air inlet slope 1111 replaces the corner where the lower edge 1122 of the air inlet meets the sand settling housing 111, preventing dust from collecting at the corner and causing low filtration efficiency.

[0027] Specifically, the dust blocking assembly 114 includes an air inlet dust blocking plate 1141 and an air inlet power part 1142. The air inlet dust blocking plate 1141 is rotatably connected to the air inlet upper edge 1121. The air inlet power part 1142 is transmission-connected to the air inlet dust blocking plate 1141 to drive the air inlet dust blocking plate 1141 to rotate.

[0028] The air inlet dust blocking plate 1141 is rotatably connected to the air inlet upper edge 1121, so that it can be operated according to usage requirements. For example, when the outdoor environment is severely dusty, the air inlet power component 1142 drives the bottom of the air inlet dust blocking plate 1141 to block dust; when there is no dust in the outdoor environment, the air inlet power component 1142 drives the air inlet dust blocking plate 1141 to be folded to reduce the air inlet resistance and reduce the energy consumption of the system.

[0029] refer to Figure 2 The air inlet power part 1142 can be an electric limiter, and the air inlet dust blocking plate 1141 can be rotated by pulling the pull rope 1145, wherein the pull rope 1145 can be a galvanized steel core rope to prevent the pull rope from breaking, thereby extending the service life.

[0030] Continue to refer Figure 2 The air inlet dust blocker 1141 comprises two plates 11411, which are arranged at an angle, and the top of the angle is rotatably connected to the air inlet upper edge 1121. The ends of the plates 11411 are connected to the air inlet power member 1142 via a pull rope 1145. The air inlet dust blocker 1141 can be counterweighted to prevent the air inlet dust blocker 1141 from being blown up by high wind speed, thereby avoiding failure.

[0031] like Figure 1 and Figure 2 As shown, the air outlet pipe 113 has an upper air outlet edge 1131 and an air outlet lower edge 1132 connected to the sand settling shell 111, the dust blocking component 114 is connected to the air outlet lower edge 1132, and the sand settling shell 111 has an air outlet slope 1112 located below the air outlet lower edge 1132 and opposite to the dust blocking component 114.

[0032] Since the air outlet pipe 113 is located above the air inlet pipe 112, and the dust blocking component 114 is installed on the lower edge 1132 of the air outlet of the air outlet pipe 113, the wind in the sand settling shell 111 is blocked by the dust blocking component 114 and then introduced into the room through the air outlet pipe 113. The dust blocked by the dust blocking component 114 uses the air outlet slope 1112 to effectively slide into the dust collecting unit 130, further improving the collection efficiency.

[0033] It should be noted that the outlet pipe 113 is located above the air inlet pipe 112, and the dust blocking component 114 is located at the lower edge 1132 of the air outlet of the outlet pipe 113. In this way, the wind introduced from the air inlet pipe 112 enters the outlet pipe 113 from bottom to top. At this time, some sand and gravel fall directly into the dust collecting unit 130, and the dust blocking component 114 located at the lower edge 1132 of the air outlet can effectively block the dust, and make the blocked dust slide into the dust collecting unit 130 using the wind slope 1112.

[0034] refer to Figure 1 and Figure 2 Because the outlet slope 1112 and the inlet slope 1111 are located on the same horizontal plane, the sand settling housing 111 is funnel-shaped. The outlet slope 1112 may be shorter than the inlet slope 1111 to make them asymmetrical, and the inclination between the outlet slope 1112 and the inlet slope 1111 may be greater than 55 degrees.

[0035] Specifically, the dust blocking assembly 114 includes an air outlet dust blocking plate 1143 and an air outlet power part 1144. The air outlet dust blocking plate 1143 is rotatably connected to the air outlet lower edge 1132. The air outlet power part 1144 is transmission-connected to the air outlet dust blocking plate 1143 to drive the air outlet dust blocking plate 1143 to rotate.

[0036] The shape of the outlet air blocking plate 1143 can be consistent with the shape of the inlet air blocking plate 1141. The outlet air power member 1144 and the inlet air power member 1142 can both be electric limiters. A detailed description is omitted here. For details, please refer to the above content. The inlet air blocking plate 1141 can be larger than the outlet air blocking plate 1143 so that the inlet air blocking plate 1141 can adapt to the longer inlet air slope 1111 to achieve a greater dust blocking effect.

[0037] like Figure 1 and Figure 3 As shown, the dust collecting unit 130 includes a dust collecting shell 131 and a dust collecting sensor 132. The dust collecting shell 131 is connected to the bottom of the sand settling shell 111. The dust collecting sensor 132 is arranged on the dust collecting shell 131 for sensing the dust collection condition in the dust collecting shell 131.

[0038] The dust collection housing 131 may be a cylindrical barrel structure to avoid the problem of difficulty in cleaning caused by dust collection in the corners of the barrel. The sand settling housing 111 may be plugged into the dust collection housing 131, and a rubber gasket 135 may be provided between the two to enhance the sealing of the connection between the two and prevent dust leakage. The rubber gasket 135 may adopt a spiral pattern to enhance the anti-slip sealing effect to ensure that the entire device is airtight. The dust collection sensor 132 may be an infrared sensor, which is provided inside the dust collection housing 131 and is used to sense the dust collection situation inside the book collection dust collection housing 131.

[0039] refer to Figure 3 The dust collecting unit 130 further includes a transparent observation window 133 and / or a signal prompt light 134. The transparent observation window 133 and the signal prompt light 134 are arranged on the dust collecting shell 131. The signal prompt light 134 is linked to the dust collecting sensor 132.

[0040] The transparent observation window 133 can be made of glass so that the user can directly observe the internal situation of the dust collection shell 131 through the transparent observation window 133. The transparent observation window 133 can be set with a scale to indicate the corresponding dust collection volume, which is convenient for operation and maintenance personnel to clean later. The signal prompt light 134 is linked to the dust collection sensor 132. When the dust collection sensor 132 senses that the sand and dust in the dust collection shell 131 exceeds the set value (for example, 50% or 70% of the capacity of the dust collection shell 131), the signal prompt light 134 outside the dust collection shell 131 is set to light up and simultaneously send a signal to the staff to prompt cleaning, which is convenient for operation and maintenance management.

[0041] like Figure 1 and Figure 4 As shown, the sedimentation and filtering device 100 further includes an automatic sand discharge unit 120 , which is disposed at the bottom of the gravity sedimentation unit 110 .

[0042] Specifically, the automatic sand discharge unit 120 includes a flap 121, which can be rotatably arranged inside the sand settling shell 111 through a rotating shaft 122, and is located below the air outlet slope 1112 and the air inlet slope 1111. In this way, when sand and dust fall onto the flap 121, the flap 121 rotates around the rotating shaft 122 to allow the sand and dust to pass through and fall into the dust collecting unit 130. When the flap 121 is not restricted by the sand and dust, the flap 121 is horizontal, and the size of the flap 121 is consistent with the cross-sectional size of the sand settling shell 111 where it is located, so as to prevent dust from overflowing and avoid secondary dusting of the dust collecting unit 130 during the operation of the air intake system.

[0043] In summary, the outdoor wind is introduced into the interior of the sand settling shell 111 through the air inlet pipe 112, and the dust is blocked by the dust blocking component 114 arranged in the sand settling shell 111, so that the dust-blocked wind is introduced into the room through the air outlet pipe 113, achieving the purpose of air intake, and the dust blocked by the dust blocking component 114 falls directly into the dust collecting unit 130. Compared with the traditional filter structure, it effectively avoids the defects of difficult disassembly and assembly caused by replacing the filter, high maintenance cost, etc. There is a height difference between the air inlet pipe 112 and the air outlet pipe 113, which allows some sand and gravel to fall directly into the dust collecting unit 130, and is further blocked by the dust blocking component 114, effectively improving the filtering effect. It avoids the noise and wear caused by the wear of the air duct by particles in the wind, effectively prolongs the service life of the equipment, fan and air duct, and has the advantages of optimizing indoor air quality, reducing the difficulty of operation and maintenance, easy installation, maintenance-free, simple operation, and wide application.

[0044] like Figure 1 As shown, the present invention also provides an air intake system, including the sand filtering device 100 of the above embodiment, and the air intake system also includes a fan 200 and an air valve 300, and the fan 200 and the air valve 300 are arranged on the pipe connecting the air outlet pipe 113 to the room.

[0045] The air inlet pipe 112 of the sand filtering device 100 is connected to the outdoors, and the air outlet pipe 113 is connected to the indoors. When the fan 200 is working and the air valve 300 is opened, the outdoor wind enters the sand setting shell 111 through the air inlet pipe 112, and is dust-blocked by the dust-blocking component 114 arranged in the sand setting shell 111, so that the dust-blocked wind is introduced into the room through the air outlet pipe 113, thereby achieving the purpose of air intake, and the dust blocked by the dust-blocking component 114 directly falls into the dust collecting unit 130.

[0046] Since the air intake system adopts the sand filtering device 100 of the above embodiment, the beneficial effects of the air intake system brought about by the sand filtering device 100 can be referred to the above embodiment.

[0047] refer to Figure 1 The air intake system also includes a plug-in filter assembly 400, which is installed on the air outlet duct 113. It can be installed on the air outlet duct 113 by plugging it into the duct using an external handle, making it easy to assemble and disassemble, and easy for staff to replace regularly. Its average filtration efficiency for 0.4μm particles is 80% to 90%, providing excellent filtration effects, further enhancing filtration capacity. The air introduced into the room is first filtered by the sand filter 100, thereby correspondingly extending the service life of the plug-in filter assembly 400.

[0048] In summary, there is a height difference between the air inlet pipe 112 and the air outlet pipe 113, which allows some sand and gravel to fall directly into the dust collection unit 130, and is further blocked by the dust blocking component 114, effectively improving the filtering effect. It avoids the noise and wear caused by the particles in the wind wearing the air duct, effectively prolongs the service life of the equipment, fan and air duct, and has the advantages of optimizing indoor air quality, reducing the difficulty of operation and maintenance, easy installation, maintenance-free, simple operation, and wide application. By providing a rotatable flap 121 at the bottom of the gravity sedimentation unit 110, dust overflow is prevented, and secondary dusting of the dust collection unit 130 during the operation of the air intake system is avoided. The dust collection unit 130 is equipped with a transparent observation window 133, a signal prompt light 134 and a dust collection sensor 132, which can actually observe the dust collection situation inside the dust collection unit 130. The signal raising light 134 can also be used to work in conjunction with the dust collection sensor 132 to remind the staff to clean up in time, thereby facilitating operation and maintenance management.

[0049] The embodiments described above are only used to illustrate the technical ideas and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. The scope of the patent application of the present invention cannot be limited by these embodiments alone. That is, any equivalent changes or modifications made according to the spirit disclosed by the present invention still fall within the patent scope of the present invention.

Claims

1. A sedimentation and filtering device (100), characterized in that: The invention comprises a gravity sand settling unit (110) and a dust collecting unit (130), wherein the gravity sand settling unit (110) comprises a sand settling shell (111), an air inlet pipe (112), an air outlet pipe (113) and a dust blocking component (114); the bottom of the sand settling shell is connected to the dust collecting unit (130); the air inlet pipe (112) and the air outlet pipe (113) are respectively connected to two sides of the sand settling shell (111); the horizontal height of the air inlet pipe (112) is lower than the horizontal height of the air outlet pipe (113); and the dust blocking component (114) is arranged inside the sand settling shell (111) to block dust from the wind introduced into the sand settling shell (111); The air inlet pipe (112) has an air inlet upper edge (1121) and an air inlet lower edge (1122) connected to the sand settling shell (111); the dust blocking component (114) is connected to the air inlet upper edge (1121); an air inlet slope (1111) is formed between the air inlet lower edge (1122) and the sand settling shell (111); and the air inlet slope (1111) is opposite to the dust blocking component (114); The dust blocking assembly (114) comprises an air inlet dust blocking plate (1141) and an air inlet power member (1142), wherein the air inlet dust blocking plate (1141) is rotatably connected to the air inlet upper edge (1121), and the air inlet power member (1142) is transmission-connected to the air inlet dust blocking plate (1141) to drive the air inlet dust blocking plate (1141) to rotate; The air inlet dust blocking plate (1141) comprises two plate bodies (11411), the two plate bodies (11411) are arranged at an angle, and the top of the angle is rotatably connected to the air inlet upper edge (1121), and the ends of the plate bodies (11411) are connected to the air inlet power part (1142) via a pull rope (1145).

2. The sedimentation and filtering device (100) according to claim 1, characterized in that: The air outlet pipe (113) has an air outlet lower edge (1132) connected to the sand settling shell (111), the dust blocking component (114) is connected to the air outlet lower edge (1132), and the sand settling shell (111) has an air outlet slope (1112) located below the air outlet lower edge (1132) and opposite to the dust blocking component (114).

3. The sedimentation and filtering device (100) according to claim 2, characterized in that: The dust blocking assembly (114) comprises an air outlet dust blocking plate (1143) and an air outlet power member (1144); the air outlet dust blocking plate (1143) is rotatably connected to the air outlet lower edge (1132); and the air outlet power member (1144) is transmission-connected to the air outlet dust blocking plate (1143) to drive the air outlet dust blocking plate (1143) to rotate.

4. The sedimentation and filtering device (100) according to claim 1, characterized in that: The dust collecting unit (130) comprises a dust collecting shell (131) and a dust collecting sensor (132), wherein the dust collecting shell (131) is connected to the bottom of the sand settling shell (111), and the dust collecting sensor (132) is arranged on the dust collecting shell (131) and is used to sense the dust collecting condition in the dust collecting shell (131).

5. The sedimentation and filtering device (100) according to claim 4, characterized in that: The dust collection unit (130) further comprises a transparent observation window (133) and / or a signal prompt light (134); the transparent observation window (133) and the signal prompt light (134) are arranged on the dust collection housing (131); and the signal prompt light (134) is linked to the dust collection sensor (132).

6. The sedimentation and filtering device (100) according to claim 1, characterized in that: It also includes an automatic sand discharge unit (120), which is arranged at the bottom of the gravity sand settling unit (110).

7. The sedimentation and filtering device (100) according to claim 6, characterized in that: The automatic sand discharge unit (120) includes a flap (121).

8. An air intake system, characterized in that: The invention comprises a sand filtering device (100) according to any one of claims 1 to 7, wherein the air intake system further comprises a fan (200) and an air valve (300), and the fan (200) and the air valve (300) are arranged on a pipe connecting the air outlet pipe (113) to the room.

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