A dustproof and explosion-proof air conditioner specifically for grain storage

By integrating explosion-proof and dust-proof components into the air conditioning equipment, the dust and explosion-proof problems of the air conditioning equipment in the grain warehouse have been solved, realizing automated dust removal and safe operation, and improving the operating efficiency and safety of the equipment.

CN224434628UActive Publication Date: 2026-06-30SHANGHAI JINGYU FLUID EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI JINGYU FLUID EQUIP CO LTD
Filing Date
2025-07-07
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing air conditioning equipment in grain silos lacks dust and explosion protection, leading to dust accumulation that affects equipment operating efficiency and poses safety hazards.

Method used

A dustproof and explosion-proof air conditioner for grain storage has been designed, which combines explosion-proof and dustproof components, including a nickel-based alloy shell, a stainless steel inner liner, a buffer rubber, a coarse filter and a HEPA filter. It is equipped with a dust extraction fan and a cleaning brush to achieve automated dust removal, and the safety is improved by a one-way air outlet valve and a baffle design.

Benefits of technology

It effectively prevents dust from entering the air conditioner, extends the service life of the equipment, reduces maintenance costs, ensures the safe operation of the air conditioner in high dust environments, and avoids the risk of explosion.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a dustproof and explosion-proof air conditioner specifically for grain silos, relating to the field of air conditioning technology. The utility model includes an explosion-proof component, an air conditioner body, and a dustproof component, with the explosion-proof component fitted onto the surface of the air conditioner body. The coarse filter at the air inlet intercepts large grain dust particles, while the HEPA filter adhered to its surface further adsorbs fine dust, forming a double filtration barrier. This prevents dust from entering the air conditioner body and clogging the heat sink or fan, ensuring stable heat exchange efficiency. A cleaning brush, driven by a screw, moves reciprocally on a slide rail, working in conjunction with a dust-collecting fan to remove accumulated dust from the filter surface in real time. This eliminates the need for manual disassembly and cleaning, reducing maintenance frequency. This automated dustproof design effectively solves the problems of decreased operating efficiency and increased energy consumption caused by dust accumulation in traditional air conditioners, extending equipment lifespan, reducing maintenance costs of grain silo temperature control systems, and providing a continuous and reliable environmental guarantee for grain storage.
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Description

Technical Field

[0001] This utility model belongs to the field of air conditioning technology, and in particular relates to a dustproof and explosion-proof air conditioner for grain storage. Background Technology

[0002] During grain storage, the environmental conditions inside the grain silo are crucial to the quality and safety of the grain. Because grain silos typically store large quantities of grain, they are prone to generating dust, which can potentially trigger explosions under certain conditions. Furthermore, the high temperature and humidity environment inside the grain silo necessitates effective temperature and humidity control to ensure the quality of stored grain.

[0003] Therefore, air conditioning is needed in the grain warehouse. However, the existing air conditioning equipment lacks effective dust prevention measures and cannot completely remove the dust entering the air conditioning system. Long-term accumulation will affect the operating efficiency and service life of the equipment. In addition, the existing air conditioning equipment does not have explosion-proof function and cannot operate safely in environments with high dust concentrations, posing a significant safety hazard.

[0004] To address these issues, we provide a dustproof and explosion-proof air conditioner specifically designed for grain storage facilities. Utility Model Content

[0005] The purpose of this utility model is to provide a dustproof and explosion-proof air conditioner for grain storage. By combining explosion-proof components and dustproof components, it solves the problem that existing air conditioners do not have dustproof and explosion-proof functions.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a dustproof and explosion-proof air conditioner specifically for grain storage, comprising an explosion-proof component, an air conditioner body, and a dustproof component. The explosion-proof component is sleeved on the surface of the air conditioner body, and a dustproof component is fixedly connected to the surface of the explosion-proof component. The explosion-proof component includes an outer shell, a cushioning rubber fixedly connected to the inner wall of the outer shell, an inner liner fixedly connected to the inner wall of the cushioning rubber, a one-way air outlet valve fixedly connected to the top of the outer shell, an air inlet at the bottom of the outer shell, and a heat dissipation vent at the bottom of the back of the outer shell. The dustproof component includes components fixedly connected to the air inlet valve by bolts. The air inlet cavity has a coarse filter screen, and a HEPA filter screen is bonded to the back of the coarse filter screen with adhesive. A cleaning and dust collection brush is provided on the surface of the coarse filter screen and the one-way air outlet valve. A dust collection fan is connected to the surface of the cleaning and dust collection brush through a dust collection pipe. The dust collection fan is fixedly connected to the surface of the outer shell. A slider is fixedly connected to the back of the cleaning and dust collection brush. A slide rail is slidably connected to the surface of the slider. One side of the slide rail is fixedly connected to the surface of the outer shell. A lead screw is threaded into the inner cavity of the slider. One end of the lead screw passes through the outside of the slide rail and is fixedly connected to a drive motor.

[0008] The present invention is further configured such that a baffle plate is fixedly connected to the top of the inner cavity of the outer shell, and air supply pipes are connected to both sides of the outer shell and above and below the baffle plate. The other end of the air supply pipes is connected to the bottom of the inner cavity of the outer shell. The baffle plate and the air supply pipes can deliver cold air to the space where the air conditioner body is located to cool the air conditioner body and improve the explosion-proof effect.

[0009] The present invention is further configured such that mounting holes are provided at the bottom of both sides of the outer shell, and the inner cavity of the mounting holes is fixedly connected to the ground by bolts. The mounting holes at the bottom of the outer shell are fixed to the ground by bolts, which enhances the stability of equipment installation, adapts to the vibration environment such as forklift movement and grain loading and unloading in the grain warehouse, and avoids the air conditioner from becoming loose or the filter shifting due to vibration.

[0010] The present invention is further configured such that a dustproof mesh is fixedly connected to the inner cavity of the heat dissipation vent by bolts, the outer shell is made of nickel-based alloy, and the inner liner is made of stainless steel. The dustproof mesh prevents dust from entering the interior of the outer shell and ensures the normal operation of the heat dissipation system. The combination of the nickel-based alloy outer shell and the stainless steel inner liner has high strength, corrosion resistance and explosion-proof characteristics, and is suitable for the complex environment of grain silos with humidity and high dust.

[0011] The present invention is further configured such that a cleaning port is provided on one side of the surface of the vacuum blower, and a cleaning door is movably connected to the surface of the cleaning port through a hinge. The cleaning port of the vacuum blower facilitates the regular removal of internal dust, maintains the suction stability of the vacuum system, and ensures that the cleaning and vacuuming function is effective for a long time.

[0012] The present invention is further configured such that an air outlet is provided on the back of the vacuum cleaner fan, and a three-way valve is connected to the air inlet of the vacuum cleaner fan. The upper and lower ends of the three-way valve are connected to the vacuum pipe. The three-way valve design allows the vacuum cleaner fan to be connected to multiple vacuum pipes at the same time, thereby improving the coverage and cleaning efficiency of the dustproof components.

[0013] The present invention is further configured such that one end of the lead screw is fixedly connected to the inner wall of the slide rail through a bearing, and the inner cavity of the slider is provided with a threaded hole for use with the lead screw. The threaded engagement between the lead screw and the slider ensures that the cleaning and dust-collecting brush moves accurately and stably, and the bearing support reduces the rotational resistance of the lead screw, ensuring the long-term reliable operation of the dustproof component.

[0014] The present invention is further configured such that a mounting plate is fixedly connected to the back of the drive motor, and one side of the mounting plate is fixedly connected to the surface of the outer shell. The drive motor is fixed to the surface of the outer shell through the mounting plate to ensure stable power output, avoid motor displacement or screw transmission misalignment caused by vibration, and ensure the reliability of the sweeping mechanism.

[0015] The present invention has the following beneficial effects.

[0016] 1. The coarse filter at the air inlet of this utility model can intercept large grain dust particles, and the HEPA filter adhering to its surface further adsorbs fine dust, forming a double filtration barrier to prevent dust from entering the air conditioner body and clogging the heat sink or fan, ensuring stable air conditioner heat exchange efficiency. The cleaning and dust removal brush is driven by a screw to move back and forth on the slide rail, working with the dust removal fan to remove the dust accumulated on the filter surface in real time. No manual disassembly and cleaning is required, reducing maintenance frequency. This automated dust prevention design effectively solves the problem of decreased operating efficiency and increased energy consumption caused by dust accumulation in traditional air conditioners, extends the service life of the equipment, reduces the maintenance cost of the grain silo temperature control system, and provides a continuous and reliable environmental guarantee for grain storage.

[0017] 2. This utility model's explosion-proof component, through layered structural design and material optimization, significantly enhances the safety of the air conditioner in dust explosion risk environments. The outer shell is made of nickel-based alloy, and the inner liner is made of stainless steel. The two layers are filled with buffer rubber, which can absorb external impacts and isolate electrical sparks, preventing internal circuit sparks from igniting dust. The one-way exhaust valve automatically releases gas when the internal pressure rises abnormally, avoiding explosive impact. The heat dissipation vent is equipped with a dustproof screen, which not only ensures heat dissipation efficiency but also prevents dust from entering the inner cavity of the outer shell. The design of the baffle plate and the gas pipe guides the cold airflow into the inner cavity of the air conditioner for cooling, further reducing the risk of explosion. This explosion-proof design complies with the safety regulations for high-dust environments such as grain silos, providing a safety guarantee for the long-term stable operation of the air conditioning system and avoiding safety accidents caused by equipment failure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a 3D diagram of a dustproof and explosion-proof air conditioner specifically designed for grain storage.

[0020] Figure 2 This is a bottom view schematic diagram of a dustproof and explosion-proof air conditioner specifically designed for grain storage.

[0021] Figure 3 This is a schematic diagram of the connection structure between a coarse filter and a HEPA filter in a grain storage-specific dustproof and explosion-proof air conditioner.

[0022] Figure 4 This is a schematic diagram of the connection structure between the outer shell and the inner liner of a dustproof and explosion-proof air conditioner specifically designed for grain storage.

[0023] Figure 5 This is a partial structural cross-sectional view of a dustproof and explosion-proof air conditioner specifically designed for grain storage.

[0024] In the attached diagram: 1. Explosion-proof components; 11. Outer shell; 12. Buffer rubber; 13. Inner liner; 14. One-way air outlet valve; 15. Baffle plate; 2. Air conditioner main body; 3. Dustproof components; 31. Coarse filter; 32. HEPA filter; 33. Cleaning and vacuuming brush; 34. Vacuum fan; 35. Slider; 36. Slide rail; 37. Lead screw; 38. Drive motor. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5 This utility model is a dustproof and explosion-proof air conditioner for grain storage, including an explosion-proof component 1, an air conditioner body 2, and a dustproof component 3. The explosion-proof component 1 is sleeved on the surface of the air conditioner body 2, and the dustproof component 3 is fixedly connected to the surface of the explosion-proof component 1. The explosion-proof component 1 includes a shell 11, a buffer rubber 12 fixedly connected to the inner wall of the shell 11, an inner liner 13 fixedly connected to the inner wall of the buffer rubber 12, a one-way air outlet valve 14 fixedly connected to the top of the surface of the shell 11, an air inlet at the bottom of the surface of the shell 11, and a heat dissipation vent at the bottom of the back of the shell 11. The dustproof component 3 includes a coarse filter fixedly connected to the inner cavity of the air inlet by bolts. A HEPA filter 32 is bonded to the back of a coarse filter 31 with an adhesive. A cleaning brush 33 is provided on the surface of the coarse filter 31 and the one-way exhaust valve 14. A vacuum cleaner 34 is connected to the surface of the cleaning brush 33 through a vacuum pipe. The vacuum cleaner 34 is fixedly connected to the surface of the housing 11. A slider 35 is fixedly connected to the back of the cleaning brush 33. A slide rail 36 is slidably connected to the surface of the slider 35. One side of the slide rail 36 is fixedly connected to the surface of the housing 11. A lead screw 37 is threaded into the inner cavity of the slider 35. One end of the lead screw 37 passes through the outside of the slide rail 36 and is fixedly connected to a drive motor 38.

[0028] Specifically: The outer shell 11, made of nickel-based alloy, the buffer rubber layer 12 attached to its inner wall, and the stainless steel inner liner 13 are bonded together by a vulcanization process to form an impact-resistant, spark-proof explosion-proof cavity. The air inlet has a funnel-shaped outward expansion design, and the inner wall has a guide slope to guide the airflow evenly through the coarse filter 31 and the HEPA filter 32. The cleaning brush 33 is an elastic silicone brush body that can conform to the surface curve of the coarse filter 31 and the one-way exhaust valve 14.

[0029] Example 2

[0030] Please see Figure 1-5Based on Embodiment 1, a baffle plate 15 is fixedly connected to the top of the inner cavity of the outer shell 11. Air supply pipes are connected to both sides of the outer shell 11 and above and below the baffle plate 15. The other end of the air supply pipes is connected to the bottom of the inner cavity of the outer shell 11. Mounting holes are opened at the bottom of both sides of the outer shell 11. The inner cavity of the mounting holes is fixedly connected to the ground by bolts. A dustproof net is fixedly connected to the inner cavity of the heat dissipation vent by bolts. The outer shell 11 is made of nickel-based alloy, and the inner liner 13 is made of stainless steel. A cleaning port is opened on one side of the surface of the vacuum cleaner 34. A cleaning door is movably connected to the surface of the cleaning port by a hinge. An air outlet is opened on the back of the vacuum cleaner 34. A three-way valve is connected to the air inlet of the vacuum cleaner 34, and the upper and lower ends of the three-way valve are connected to the vacuum pipe. One end of the lead screw 37 is fixedly connected to the inner wall of the slide rail 36 by a bearing. A threaded hole for use with the lead screw 37 is opened in the inner cavity of the slider 35. A mounting plate is fixedly connected to the back of the drive motor 38. One side of the mounting plate is fixedly connected to the surface of the outer shell 11.

[0031] Specifically: the baffle plate 15 and the air supply pipe can deliver cold air to the space where the air conditioning unit 2 is located to cool the air conditioning unit 2 and improve the explosion-proof effect. The mounting holes at the bottom of the outer shell 11 are fixed to the ground with bolts to enhance the stability of the equipment installation and adapt to the vibration environment such as forklift movement and grain loading and unloading in the grain silo. This prevents the air conditioning components from loosening or the filter from shifting due to vibration. The dustproof net prevents dust from entering the interior of the outer shell 11 and ensures the normal operation of the heat dissipation system. The combination of the nickel-based alloy outer shell 11 and the stainless steel inner liner 13 has high strength, corrosion resistance and explosion-proof characteristics, adapting to the complex environment of the grain silo with humidity and high dust. The dust extraction fan 3 The cleaning port 4 facilitates regular removal of internal dust, maintains the suction stability of the vacuum system, and ensures long-term effectiveness of the cleaning and vacuuming function. The three-way valve design allows the vacuum blower 34 to connect to multiple vacuum lines simultaneously, improving the coverage and cleaning efficiency of the dustproof component 3. The threaded engagement between the lead screw 37 and the slider 35 ensures precise and stable movement of the cleaning and vacuuming brush 33. The bearing support reduces the rotational resistance of the lead screw 37, ensuring the long-term reliable operation of the dustproof component 3. The drive motor 38 is fixed to the surface of the housing 11 by the mounting plate, ensuring stable power output and preventing motor displacement or lead screw 37 transmission misalignment caused by vibration, thus ensuring the reliability of the cleaning mechanism.

[0032] The working principle of this utility model is as follows: external air is filtered by both the coarse filter 31 and the HEPA filter 32 at the air inlet. Large dust particles are intercepted by the coarse filter 31, while fine dust particles are adsorbed by the HEPA filter 32. By periodically starting the drive motor 38, the lead screw 37 is rotated, causing the cleaning brush 33 to move back and forth along the slide rail 36, brushing off the dust on the surface of the filter and the one-way exhaust valve 14. The dust is sucked in and collected by the vacuum fan 34 through the suction pipe, realizing automatic cleaning of the filter. The heat generated by the air conditioner body 2 during operation is discharged through the heat dissipation vent. The dustproof net prevents dust from entering, and at the same time, the air supply pipe diverts a portion of the blown-out cold air to cool down the air conditioner body 2. The buffer rubber layer 12 absorbs external impact and isolates the rigid contact between the inner liner 13 and the outer shell 11, preventing the leakage of electric sparks. The combination of the nickel-based alloy and stainless steel outer shell 11 and inner liner 13 provides a double barrier against the risk of explosion from both structural and material perspectives.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A dustproof and explosion-proof air conditioner for grain storage, comprising an explosion-proof component (1), an air conditioner body (2), and a dustproof component (3), characterized in that: The explosion-proof component (1) is sleeved on the surface of the air conditioner body (2), and a dustproof component (3) is fixedly connected to the surface of the explosion-proof component (1). The explosion-proof component (1) includes a shell (11), a buffer rubber (12) is fixedly connected to the inner wall of the shell (11), an inner liner (13) is fixedly connected to the inner wall of the buffer rubber (12), a one-way air valve (14) is fixedly connected to the top of the surface of the shell (11), an air inlet is provided at the bottom of the surface of the shell (11), and a heat dissipation vent is provided at the bottom of the back of the shell (11). The dustproof assembly (3) includes a coarse filter (31) fixedly connected to the inner cavity of the air inlet by bolts. A HEPA filter (32) is bonded to the back of the coarse filter (31) by adhesive. A cleaning and dust-collecting brush (33) is provided on the surface of the coarse filter (31) and the one-way air outlet valve (14). A dust-collecting fan (34) is connected to the surface of the cleaning and dust-collecting brush (33) through a dust-collecting pipe. The dust-collecting fan (34) is fixedly connected to the surface of the outer shell (11). A slider (35) is fixedly connected to the back of the cleaning and dust-collecting brush (33). A slide rail (36) is slidably connected to the surface of the slider (35). One side of the slide rail (36) is fixedly connected to the surface of the outer shell (11). A lead screw (37) is threadedly connected to the inner cavity of the slider (35). One end of the lead screw (37) extends through to the outside of the slide rail (36) and is fixedly connected to a drive motor (38).

2. The dustproof and explosion-proof air conditioner for grain storage as described in claim 1, characterized in that: A baffle plate (15) is fixedly connected to the top of the inner cavity of the outer shell (11). Gas supply pipes are connected to both sides of the outer shell (11) and above and below the baffle plate (15). The other end of the gas supply pipe is connected to the bottom of the inner cavity of the outer shell (11).

3. The dustproof and explosion-proof air conditioner for grain storage as described in claim 1, characterized in that: Mounting holes are provided on the bottom of both sides of the outer shell (11), and the inner cavity of the mounting holes is fixedly connected to the ground by bolts.

4. The dustproof and explosion-proof air conditioner for grain storage as described in claim 1, characterized in that: The inner cavity of the heat dissipation vent is fixedly connected with a dustproof mesh by bolts. The outer shell (11) is made of nickel-based alloy, and the inner liner (13) is made of stainless steel.

5. A dustproof and explosion-proof air conditioner for grain storage as described in claim 1, characterized in that: The surface of one side of the vacuum blower (34) is provided with a cleaning port, and the surface of the cleaning port is movably connected to a cleaning door by a hinge.

6. The dustproof and explosion-proof air conditioner for grain storage as described in claim 1, characterized in that: The back of the vacuum cleaner (34) has an air outlet, and the air inlet of the vacuum cleaner (34) is connected to a three-way valve, and the upper and lower ends of the three-way valve are connected to the vacuum pipe.

7. A dustproof and explosion-proof air conditioner for grain storage as described in claim 1, characterized in that: One end of the lead screw (37) is fixedly connected to the inner wall of the slide rail (36) through a bearing, and the inner cavity of the slider (35) is provided with a threaded hole for use with the lead screw (37).

8. A dustproof and explosion-proof air conditioner for grain storage as described in claim 1, characterized in that: A mounting plate is fixedly connected to the back of the drive motor (38), and one side of the mounting plate is fixedly connected to the surface of the housing (11).