A zeolite-based harmful gas removal machine for vegetable cold storage

Abstract

The invention discloses a harmful gas remover for vegetable cold storage based on zeolite, comprising a box body, an air guide channel is arranged in the box body, air inlet fans and exhaust fans are arranged at both ends of the air guide channel respectively, a plurality of columnar filter material modules, a first sterilization module, a second sterilization module and a plurality of honeycomb filter material modules are sequentially arranged along the air guide channel in the box body, the air guide channel comprises a plurality of air guide pipes and a plurality of conical air guide covers, the large end of the conical air guide cover covers the air outlet side of the module, and the small end is connected to the air guide pipe or the exhaust fan, the air guide pipe runs through the center of the module to the air outlet side of the module; electric valves are installed in the air guide pipes passing through the center of the module; the air guide pipes on the front side of the air inlet side of the module are provided with reversing devices, and the reversing devices comprise a plurality of valve sheets hinged to the air guide pipe; the invention can realize the access selection of the filter material module through the air guide reversing structure, and is suitable for the use of various types of vegetable cold storages; it is convenient for the centralized removal of harmful gases in different cold storages, and the use is flexible and convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of cabin cold storage air purification equipment, and in particular relates to a zeolite-based vegetable cold storage harmful gas remover. Background Art

[0002] Vegetables are rich in vitamins, minerals and proteins needed by the human body and are an indispensable food for humans. Since vegetables are seasonal products, increasing their storage and preservation time is of great practical significance for improving economic benefits, solving long-distance storage and transportation problems, and improving life in ocean, mountain and island areas.

[0003] There are many harmful gases in the storage environment of shipboard vegetable cold storage, such as ethylene, acetaldehyde, ethanol, hydrogen sulfide, formaldehyde, sulfur dioxide, etc. Most domestic ships are not equipped with special harmful gas removal devices. Some ship cold storages are equipped with ethylene removers or ozone generators, and both devices have certain limitations in removing harmful gases. Some foreign countries have installed ethylene removers with potassium permanganate as an oxidant in cold storage, but there are obvious disadvantages: first, the burning gas produced after oxidation by potassium permanganate will destroy the quality of fruits and vegetables; second, the filter material needs to be replaced after absorbing moisture, the service life is short, and it is not easy to regenerate, and the maintenance cost is high. The ozone generated by the ozone generator is highly oxidizing. Although it can kill bacteria, the loss of nutrition to fruits and vegetables cannot be ignored. Moreover, the gradual accumulation of ozone concentration in the closed cabin seriously endangers human health. It has been banned from use in places where people move.

[0004] At present, the air purification scheme for confined spaces basically adopts the purification scheme with activated carbon as the main filter material. However, since activated carbon is mostly an amorphous porous structure with a wide pore size distribution, it lacks selectivity for adsorbed substances and has no ion exchange capacity. Once the adsorption is saturated or the concentration of harmful gases adsorbed by itself is higher than the ambient concentration, it will release the inhaled gas. It must be replaced frequently and has high maintenance costs.

[0005] The invention patent with publication number CN111467927A is a zeolite-based harmful gas remover, which provides equipment that uses zeolite, activated carbon and sterilization equipment to remove harmful gases from ship cold storage. The remover relies on the excellent performance of zeolite to remove harmful gases, thereby extending the shelf life of fruits and vegetables; improving the air quality of ship cabins and protecting the physical and mental health of crew members. However, the remover needs to use and install different filter materials according to different cold storages and different fruit and vegetable varieties stored in the cold storages, and adopts various types and models of equipment, so the scope of application is small; according to the distance and season of the ship's ocean voyage, the number of fruit and vegetable varieties stored in the ship's cold storage is different, and it cannot meet the requirements of harmful gas removal from different fruits and vegetables, nor is it suitable for the requirements of harmful gas removal from different cold storage environments on the same ship. It has a fixed structure, a single function, is inconvenient to use, and has a limited scope of application. Summary of the invention

[0006] The purpose of the present invention is to provide a zeolite-based vegetable cold storage harmful gas remover, which can realize the access selection of filter material modules through the air guide reversing structure, and is suitable for use in various types of fruit and vegetable cold storages; it is convenient for centralized removal of harmful gases in different cold storages, and is flexible and convenient to use.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a zeolite-based vegetable cold storage harmful gas remover, comprising a box body, an air guide channel is arranged in the box body, an air inlet fan and an exhaust fan are arranged at both ends of the air guide channel, the air inlet fan and the exhaust fan are respectively installed on two opposite side walls of the box body, a plurality of columnar filter material modules, a first sterilization module, a second sterilization module and a plurality of honeycomb filter material modules are sequentially arranged along the air guide channel in the box body, the air guide channel comprises a plurality of air guide pipes and a plurality of conical air guide covers, the air guide pipes and the conical air guide covers are alternately arranged, and the conical air guide pipes and the conical air guide covers are alternately arranged. The hood corresponds one-to-one to the above-mentioned modules, the large end of the conical air guide hood covers the air outlet side of the module, and the small end is connected to the air guide duct or the exhaust fan, and the air guide duct runs through the center of the module to the air outlet side of the module; the air guide duct passing through the center of the module is installed with an electric valve; the air guide duct on the front side of the air inlet side of the module is provided with a reversing device, the reversing device includes a plurality of valve plates hinged to the air guide duct, the circumference of the valve plates is evenly distributed on the outside of the air guide duct, the air guide duct is provided with air exchange holes corresponding to the valve plates, an annular frame is provided on the outside of the air guide duct, an electric telescopic rod is hinged between the annular frame and the valve plate, and the electric telescopic rod corresponds one-to-one to the valve plate.

[0008] Furthermore, the side wall of the box body outside the air inlet fan is provided with silk floss.

[0009] Furthermore, the columnar filter material module includes a plurality of columnar filter materials arranged in an array; the number of the columnar filter material modules and the honeycomb filter material modules arranged along the air guide channel are both three.

[0010] Furthermore, the columnar filter material module is filled with zeolite particles; and the honeycomb filter material module is filled with zeolite particles or a mixture of zeolite particles and activated carbon particles.

[0011] Furthermore, the first sterilization module is an ultraviolet sterilization lamp; the second sterilization module is an electrostatic dust removal module or an electrocoagulation module.

[0012] Furthermore, the air guide pipe at one end of the box body is connected to the air inlet fan, and the small end of the conical air guide cover at the other end is connected to the exhaust fan.

[0013] Furthermore, the outer sides of both ends of the box body are respectively connected to an air inlet pipe and an air exhaust pipe, and the air inlet pipe and the air exhaust pipe are respectively connected to an air inlet fan and an air exhaust fan.

[0014] Furthermore, the number of air guide channels arranged in the box is not less than two. The air guide channels are independent of each other; a partition is arranged in the box, and the partition makes the air guide channels and their auxiliary modules ventilated independently without interfering with each other.

[0015] The beneficial effects of the present invention are as follows:

[0016] The harmful gas removal machine of the present invention can effectively remove the harmful gases such as ethylene, acetaldehyde, hydrogen sulfide and other ripening gases, as well as harmful chemical substances such as aldehydes, ketones, esters and alcohols in the shipboard cold storage, thereby extending the shelf life of fruits and vegetables; it can effectively kill harmful bacteria in the cold storage, play an air protection role, and prevent the spread of epidemics; and it has the function of electrostatic dust removal;

[0017] The present invention is provided with a plurality of columnar filter material modules, a plurality of honeycomb filter material modules and a double sterilization module. Through the main air channel and the reversing device, the selection of each module being connected to or not connected to the air guide channel can be realized, so that the filtering of harmful gases is more diversified and more adaptable, and can be adapted to the removal of harmful gases in different types of fruit and vegetable cold storages;

[0018] The present invention can not only ensure the removal rate of harmful gases and meet the air purification requirements through the alternating use of modules, but also greatly extend the maintenance cycle of the equipment and the replacement cycle of the filter material, extend the shelf life of fruits and vegetables, improve the air quality, ensure the physical and mental health of the crew, and is easy to use, saving time and effort.

[0019] The present invention facilitates the arrangement of multiple groups of air guide channels, and simultaneously independently completes the removal of harmful gases in multiple different cold storages, thereby meeting diverse needs, achieving centralized control, facilitating management, and saving space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram of the local structure of the air guide channel of the present invention.

[0022] Figure 3 This is a schematic diagram of the integrated structure of multiple air guide channels according to the second embodiment of the present invention.

[0023] In the figure: 1. box body, 2. air guide channel, 3. first sterilization module, 4. second sterilization module, 5. columnar filter material module, 6. honeycomb filter material module, 7. conical air guide cover, 8. electric valve, 9. valve plate, 10. electric telescopic rod, 11. ring frame, 12. air inlet fan, 13. exhaust fan, 14. silk cotton, 15. air guide duct. DETAILED DESCRIPTION

[0024] 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.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Embodiment 1

[0027] See also Figure 1-2 The present embodiment provides a zeolite-based vegetable cold storage harmful gas removal machine, including a box body 1, wherein an air guide channel 2 is arranged in the box body 1, and an air inlet fan 12 and an exhaust fan 13 are respectively arranged at both ends of the air guide channel 2, and the air inlet fan 12 and the exhaust fan 13 are respectively installed on two opposite side walls of the box body 1, and a plurality of columnar filter material modules 5, a first sterilization module 3, a second sterilization module 4 and a plurality of honeycomb filter material modules 6 are sequentially arranged along the air guide channel 2 in the box body 1, and the air guide channel 2 includes a plurality of air guide pipes 15 and a plurality of conical air guide covers 7, and the air guide pipes 15 and the conical air guide covers 7 are alternately arranged, and the conical air guide covers 7 correspond to the above modules one by one. The large end of the conical air guide cover 7 covers the air outlet side of the module, and the small end is connected to the air guide duct 15 or the exhaust fan 13. The air guide duct 15 runs through the center of the module to the air outlet side of the module; the air guide duct 15 passing through the center of the module is installed with an electric valve 8; the air guide duct 15 on the front side of the air inlet side of the module is provided with a reversing device, which includes a plurality of valve plates 9 hinged to the air guide duct 15, and the valve plates 9 are evenly distributed on the outside of the air guide duct 15. The air guide duct 15 is provided with air exchange holes corresponding to the valve plates 9, and an annular frame 11 is provided on the outside of the air guide duct 15. An electric telescopic rod 10 is hinged between the annular frame 11 and the valve plates 9, and the electric telescopic rod 10 corresponds to the valve plates 9 one by one.

[0028] In this embodiment, a silk floss 14 is provided on the side wall of the box body 1 outside the air inlet fan 12 .

[0029] In this embodiment, the columnar filter material module 5 includes a plurality of columnar filter materials arranged in an array; the number of the columnar filter material modules 5 and the honeycomb filter material modules 6 arranged along the air guide channel 2 are both three.

[0030] In this embodiment, the columnar filter material module 5 is filled with zeolite particles; and the honeycomb filter material module 6 is filled with zeolite particles or a mixture of zeolite particles and activated carbon particles.

[0031] In this embodiment, the first sterilization module 3 is an ultraviolet sterilization lamp; the second sterilization module 4 is an electrostatic dust removal module or an electrocoagulation module.

[0032] In this embodiment, the air guide duct 15 at one end of the box body 1 is connected to the air inlet fan 12 , and the small end of the conical air guide cover 7 at the other end is connected to the exhaust fan 13 .

[0033] In this embodiment, the outer sides of both ends of the box body 1 are respectively connected to an air inlet pipe and an air exhaust pipe, and the air inlet pipe and the air exhaust pipe are respectively connected to an air inlet fan 12 and an air exhaust fan 13.

[0034] Embodiment 2

[0035] See also Figure 1 , 2 3. This embodiment provides a zeolite-based vegetable cold storage harmful gas remover, including a box body 1, wherein an air guide channel 2 is arranged in the box body 1, and an air inlet fan 12 and an exhaust fan 13 are respectively arranged at both ends of the air guide channel 2, and the air inlet fan 12 and the exhaust fan 13 are respectively installed on two opposite side walls of the box body 1, and a plurality of columnar filter material modules 5, a first sterilization module 3, a second sterilization module 4 and a plurality of honeycomb filter material modules 6 are sequentially arranged along the air guide channel 2 in the box body 1, and the air guide channel 2 includes a plurality of air guide pipes 15 and a plurality of conical air guide covers 7, and the air guide pipes 15 and the conical air guide covers 7 are alternately arranged, and the conical air guide covers 7 are one-to-one with the above modules. The large end of the conical air guide cover 7 covers the air outlet side of the module, and the small end is connected to the air guide duct 15 or the exhaust fan 13. The air guide duct 15 runs through the center of the module to the air outlet side of the module; the air guide duct 15 passing through the center of the module is installed with an electric valve 8; the air guide duct 15 on the front side of the air inlet side of the module is provided with a reversing device, which includes a plurality of valve plates 9 hinged to the air guide duct 15, and the valve plates 9 are evenly distributed on the outside of the air guide duct 15. The air guide duct 15 is provided with air exchange holes corresponding to the valve plates 9, and an annular frame 11 is provided on the outside of the air guide duct 15. An electric telescopic rod 10 is hinged between the annular frame 11 and the valve plates 9, and the electric telescopic rod 10 corresponds to the valve plates 9 one by one.

[0036] In this embodiment, the number of air guide channels 2 provided in the box body 1 is not less than two. The air guide channels 2 are independent of each other; a partition is provided in the box body 1, and the partition makes the air guide channels 2 and their auxiliary modules ventilated independently without interfering with each other.

[0037] In this embodiment, a silk floss 14 is provided on the side wall of the box body 1 outside the air inlet fan 12 .

[0038] In this embodiment, the columnar filter material module 5 includes a plurality of columnar filter materials arranged in an array; the number of the columnar filter material modules 5 and the honeycomb filter material modules 6 arranged along each air guide channel 2 are both three.

[0039] In this embodiment, the columnar filter material module 5 is filled with zeolite particles; and the honeycomb filter material module 6 is filled with zeolite particles or a mixture of zeolite particles and activated carbon particles.

[0040] In this embodiment, the first sterilization module 3 is an ultraviolet sterilization lamp; the second sterilization module 4 is an electrostatic dust removal module or an electrocoagulation module.

[0041] In this embodiment, the air guide duct 15 at one end of the box body 1 is connected to the air inlet fan 12 , and the small end of the conical air guide cover 7 at the other end is connected to the exhaust fan 13 .

[0042] In this embodiment, the outer sides of both ends of the box body 1 are respectively connected to an air inlet pipe and an air exhaust pipe, and the air inlet pipe and the air exhaust pipe are respectively connected to an air inlet fan 12 and an air exhaust fan 13.

[0043] When the present invention is used, the air intake fan 12 and the exhaust fan 13 work to circulate the air in the cold storage through the air guide channel 2. The air passes through the silk cotton 14 to first filter the impurities and dust in the air. According to the switch of the electric valve 8 and the reversing device, it can be adjusted whether the air guide air passes through each module. The electric valve 8 of the air guide duct 15 is closed, the electric telescopic rod 10 of the reversing device is retracted, and the valve plate 9 is opened. The air guide duct 15 is no longer ventilated at this place. The air enters the outside of the air guide duct 15 from the air exchange hole of the air guide duct 15 and passes through the module outside the air guide duct 15 to perform corresponding air filtration. On the air outlet side of the module, the air is collected by the conical air guide cover 7 and enters the next air guide duct 15. On the contrary, when the electric valve 8 of the air guide duct 15 is opened, the electric telescopic rod 10 is extended, and the valve plate 9 closes the air exchange hole, the air directly passes through the air guide duct 15, no longer passes through the module outside the air guide duct 15, and enters the next air guide duct 15 through the next conical air guide cover 7, skipping the module.

[0044] In the present invention, the electric telescopic rod 10 can be replaced by a spring telescopic rod. When the electric valve 8 corresponding to the wind direction downstream of the reversing device is closed, the pressure in the air duct at that location increases, and the air pressure pushes the valve plate 9 from the inside to the outside. The hinged valve plate 9 compresses the spring telescopic rod, so that the valve 9 automatically opens, and the air passes through the module for filtering. On the contrary, when the electric valve 8 is opened, the air directly passes through the air duct 15, so that the pressure in the air duct 15 is normal, and the valve plate 9 is closed under the elastic force of the spring telescopic rod, and the module at that location is not filtered.

[0045] The housing 1 of the present invention adopts a high-strength waterproof and impact-proof shell with an IP56 protection grade; the zeolite filter material can be reused, and the filter material has a long service life and a long maintenance cycle; the filter material is a mixture of zeolite particles and activated carbon particles, and the activated carbon can partially fill the gaps between the zeolite particles to prevent air leakage and affect the adsorption effect. The most important thing is that after adding activated carbon, the instantaneous removal ability of the filter material is greatly enhanced. Although the activated carbon will release the adsorbed toxic and harmful gases in reverse after saturation, the released toxic and harmful gases can be adsorbed and solidified in the pores by the zeolite particles to avoid secondary pollution from the activated carbon.

[0046] Part of the embodiments of the present invention: Scheme 1: When two columnar filter modules 5 and the first sterilization module 3 are used for filtration and other modules are not used for filtration, the air fluidity is better, the wind pressure is small, energy saving, the removal rate per unit time is better, and the instantaneous removal ability is worse than that of Scheme 2, which is suitable for cold storage with small volume or relatively single dishes; Scheme 2: When two honeycomb filter modules 6 and the first sterilization module 3 are used for filtration and other modules are not used for filtration, the instantaneous removal ability of harmful gases is high, which is suitable for cold storage with mixed fruits and vegetables of various categories; Scheme 3: When one columnar filter module 5, one honeycomb filter module 6 and the first sterilization module 3 are used for filtration and other modules are not used for filtration, the instantaneous removal rate of harmful gases can be improved relative to Scheme 1, and the air fluidity is better increased relative to Scheme 2, which is suitable for cold storage with larger volume; Scheme 4: When three columnar filter modules 5 and the first sterilization module 3 are used for filtration and other modules are not used for filtration, the air fluidity is better, the wind pressure is small, energy saving, and the harmful gas removal rate is higher than that of Scheme 5, and it is also suitable for storing a single Cold storage for dishes; Scheme 5: When three honeycomb filter modules 6 and the first sterilization module 3 are used for filtration and other modules are not used for filtration, the instantaneous removal rate of harmful gases is higher than that of Scheme 4, which is suitable for cold storage that is easy to rot and produces more odor; Scheme 6: When two columnar filter modules 5 and one honeycomb filter module 6 and the first sterilization module 3 are used for filtration and other modules are not used for filtration, the harmful gas removal rate is improved relative to Scheme 4, and the air flow is increased relative to Scheme 5, which is suitable for cold storage with mixed fruits and vegetables of various categories; Scheme 7: When two honeycomb filter modules 6 and one columnar filter module 5 and the first sterilization module 3 are used for filtration and other modules are not used for filtration, the harmful gas removal rate is improved relative to Scheme 4, and the air flow is increased relative to Scheme 5, which is suitable for cold storage with mixed fruits and vegetables of various categories and one category is easy to produce catalytic reaction with other categories; Scheme 8: When two honeycomb filter modules 6 and one columnar filter module 5 and the second sterilization module 4 are used for filtration and other modules are not used for filtration, the performance of electrostatic dust collection is greatly increased. The scheme adjustment settings are flexible and varied, so I will not go into details one by one.

[0047] In the second embodiment of the present invention, three independent air guide channels 2 can simultaneously adopt three schemes to remove harmful gases in cold storages in three occasions, meet diversified needs, centrally control, facilitate management, and save space.

[0048] Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A zeolite-based vegetable cold storage harmful gas remover, comprising a box body, characterized in that: The box body is provided with an air guide channel, and air inlet fans and exhaust fans are respectively provided at both ends of the air guide channel, and the air inlet fans and exhaust fans are respectively installed on two opposite side walls of the box body, and a plurality of columnar filter material modules, a first sterilization module, a second sterilization module and a plurality of honeycomb filter material modules are sequentially arranged along the air guide channel in the box body, and the air guide channel includes a plurality of air guide pipes and a plurality of conical air guide covers, and the air guide pipes and the conical air guide covers are alternately arranged, and the conical air guide covers correspond to the above modules one by one, and the large end of the conical air guide cover covers the module The air outlet side and the small end of the module are connected to the air duct or exhaust fan, and the air duct runs through the center of the module to the air outlet side of the module; the air duct passing through the center of the module is equipped with an electric valve; the air duct on the front side of the air inlet side of the module is equipped with a reversing device, which includes a plurality of valve plates hinged to the air duct, and the circumference of the valve plates is evenly distributed on the outside of the air duct, and the air duct is provided with air exchange holes corresponding to the valve plates, and an annular frame is provided on the outside of the air duct, and an electric telescopic rod is hinged between the annular frame and the valve plates, and the electric telescopic rod corresponds to the valve plates one by one; The columnar filter material module is filled with zeolite particles; the honeycomb filter material module is filled with zeolite particles or a mixture of zeolite particles and activated carbon particles.

2. The zeolite-based vegetable cold storage harmful gas remover according to claim 1, characterized in that: The side wall of the box body outside the air inlet fan is provided with silk floss.

3. The zeolite-based vegetable cold storage harmful gas remover as claimed in claim 2, characterized in that: The columnar filter material module includes a plurality of columnar filter materials arranged in an array; the number of the columnar filter material modules and the honeycomb filter material modules arranged along the air guide channel are both three.

4. The zeolite-based vegetable cold storage harmful gas remover as claimed in claim 3, characterized in that: The first sterilization module is an ultraviolet sterilization lamp; the second sterilization module is an electrostatic dust removal module or an electrocoagulation module.

5. The zeolite-based vegetable cold storage harmful gas remover as claimed in claim 4, characterized in that: The air guide pipe at one end of the box body is connected to the air inlet fan, and the small end of the conical air guide cover at the other end is connected to the exhaust fan.

6. The zeolite-based vegetable cold storage harmful gas remover as claimed in claim 5, characterized in that: The outer sides of the two ends of the box body are respectively connected to an air inlet pipe and an air exhaust pipe, and the air inlet pipe and the air exhaust pipe are respectively connected to an air inlet fan and an air exhaust fan.

7. The zeolite-based vegetable cold storage harmful gas remover according to claim 6, characterized in that: The number of the air guide channels arranged in the box is not less than two.

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