Plasma generator capable of controlling ozone amount

Abstract

A plasma generator capable of controlling ozone amount disclosed by the present invention comprises a box body, an inlet air primary filtration device and an exhaust module, the box body is internally divided into a purification cavity and an exhaust buffer cavity, the purification cavity and the exhaust buffer cavity are connected through a pipeline, the inlet air primary filtration device is installed and communicated with the purification cavity, and the exhaust module is installed and communicated with the exhaust buffer cavity. The exhaust module comprises an exhaust pump, an air pumping and exhausting route from the purification cavity to the exhaust buffer cavity is formed by starting the exhaust pump, the purification cavity is correspondingly provided with an ionization device, the top of the box body is provided with an ozone treatment device, and the ozone treatment device is connected to an air pipeline from the purification cavity to the exhaust buffer cavity; according to the ozone treatment device, a zigzag air circulation path is designed in the ozone treatment device, so that the circulation movement stroke of air is enlarged, the air is in full contact with a catalytic plate in the circulation process to decompose ozone, ozone generated by ionization can be well treated, and the ozone discharge amount of plasma generator equipment can be remarkably reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air purification equipment, more particularly, to a plasma generator capable of controlling ozone amount. BACKGROUND

[0002] The plasma generator is a commonly used air purification equipment, the plasma generator utilizes electrodes to generate high-voltage electric field, so that air molecules are ionized in the electric field environment to generate plasma, the ionization of air can promote air to be disinfected and sterilized, thereby achieving the effect of air purification, ozone is a byproduct (formed by ionization of oxygen components in air) in the air purified by the plasma generator, the better the ionization effect of the plasma generator, the more the ozone generated, low-concentration ozone has an auxiliary role in sterilization, but as the ozone concentration increases, the emission of high-concentration ozone will not only cause human discomfort, but also adversely affect human health, and even affect the service life of the equipment, therefore, how to control the emission amount of ozone has become the design focus of the plasma generator equipment, and the present application is thus born. SUMMARY

[0003] The present application aims to solve the above-mentioned needs of the prior art, and provides a plasma generator capable of controlling ozone amount, the present application designs an ozone treatment device to treat the ionized ozone, a zigzag air flow path is designed in the ozone treatment device to increase the travel distance of air flow, and the air flow is fully contacted with the catalytic plate to decompose ozone, the present application can well treat the ionized ozone, and can significantly reduce the ozone emission amount of the plasma generator equipment.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] A plasma generator capable of controlling ozone amount, comprising a box body, an air inlet preliminary filtering device and an exhaust module, a purification cavity and an exhaust buffer cavity are formed in the box body, the purification cavity and the exhaust buffer cavity are connected through a pipeline, the air inlet preliminary filtering device is installed to communicate with the purification cavity, the exhaust module is installed to communicate with the exhaust buffer cavity, the exhaust module comprises an exhaust pump, the exhaust pump is started to form an air exhaust route from the purification cavity to the exhaust buffer cavity, the purification cavity is correspondingly installed with an ionization device, an ozone treatment device is installed on the top of the box body, and the ozone treatment device is connected to the air pipeline from the purification cavity to the exhaust buffer cavity.

[0006] Further, the ionization device comprises an electrode rod installed on the inner side of the purification cavity, the electrode rod is installed above the air inlet preliminary filtering device, and the air outlet of the purification cavity is arranged on the top of the purification cavity.

[0007] Further, the air inlet preliminary filtering device comprises a total air inlet pipe orifice, a filter disc and an air inlet cover, the total air inlet pipe orifice is connected to the purification cavity in a through manner, a step is formed inside the total air inlet pipe orifice, the filter disc is installed against the step, the air inlet cover is threadedly connected to the total air inlet pipe orifice, a pressing disc flange is connected to the air inlet cover, the pressing disc flange is adapted to be inserted into the total air inlet pipe orifice and to press and fix the filter disc, and a plurality of grid holes are arranged on the cover surface of the air inlet cover.

[0008] Further, the ozone treatment device comprises a treatment box and catalytic plate pieces, the treatment box is embeddedly installed from the top of the box body, the treatment box is respectively connected with a treatment air inlet and a treatment air outlet at the left and right ends, a plurality of catalytic plate pieces are arranged in the left and right directions and installed in the treatment box, and a plurality of catalytic plate pieces are alternately installed in the up and down directions to form a wavy air flow path in the treatment box.

[0009] Further, the catalytic plate piece comprises a skeleton plate, the skeleton plate is fixedly connected to the inner side of the treatment box, and catalytic plates are fixedly installed on the front and rear plate surfaces of the skeleton plate.

[0010] Further, the catalytic plate piece is installed in an inclined manner, and adjacent catalytic plate pieces form a conical flow space.

[0011] Further, the exhaust module further comprises an ozone concentration detector installed in the exhaust buffer cavity, and the ozone concentration detector is linked to control the ionization device.

[0012] The beneficial effects of the present application are as follows:

[0013] The present application designs an ozone treatment device to treat the ozone generated by ionization, a zigzag air flow path is designed in the ozone treatment device to enlarge the flow movement stroke of air, and the air flow sufficiently contacts the catalytic plate piece to form the decomposition of ozone. The present application improves the ozone treatment effect by reasonably arranging the catalytic plate piece, can well treat the ozone generated by ionization, can significantly reduce the ozone emission of the plasma generator device, and meets the safety use requirement of the plasma generator. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional external shape diagram of the plasma generator capable of controlling ozone amount in the embodiment;

[0015] Figure 2 It is an internal structure sectional view of the plasma generator capable of controlling ozone amount in the embodiment;

[0016] Figure 3 It is a structure sectional view of the ozone treatment device in the embodiment;

[0017] Figure 4 It is Figure 2An enlarged view of A in FIG. 1.

[0018] Reference signs: box 1, purification cavity 11, exhaust buffer cavity 12, intake preliminary filtering device 2, total intake pipe 21, step 22, filter disc 23, intake cover 24, pressure disc flange 241, grid hole 242, exhaust module 3, exhaust pump 31, ozone concentration detector 32, ionization device 4, electrode rod 41, ozone treatment device 5, treatment box 51, treatment intake port 52, treatment exhaust port 53, catalytic plate 54, skeleton plate 541, catalytic plate 542, air flow path 55, flow space 56. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] As Figures 1-4The ozone amount controllable plasma generator shown comprises a box body 1, an air inlet primary filter device 2 and an exhaust module 3, the box body 1 is divided to form a purification cavity 11 and an exhaust buffer cavity 12, the purification cavity 11 and the exhaust buffer cavity 12 are connected through a pipeline, the exhaust module 3 is installed to communicate with the exhaust buffer cavity 12, the exhaust module 3 comprises an exhaust pump 31, the exhaust pump 31 is used for pumping and exhausting air, so that the air in the box body 1 can flow, the air pumping and exhausting route from the purification cavity 11 to the exhaust buffer cavity 12 is formed by starting the exhaust pump 31, the air enters from the purification cavity 11 and is finally pumped and exhausted from the exhaust buffer cavity 12, the air inlet primary filter device 2 is installed to communicate with the purification cavity 11, the purification cavity 11 serves as the first station for the air entering the box body 1 of the plasma generator, the air inlet primary filter device 2 plays a filtering role when the air enters, and is used for processing large-particle impurities in the air, the purification cavity 11 is correspondingly installed with an ionization device 4, the ionization device 4 comprises an electrode rod 41 installed on the inner side of the purification cavity 11, the electrode rod 41 generates a high-voltage electric field by electrification, the electrode rod 41 is installed at a position above the air inlet primary filter device 2, the air outlet of the purification cavity 11 is arranged at the top of the purification cavity 11, the air sucked into the purification cavity 11 moves from bottom to top, the air passes through the high-voltage electric field generated by the electrode rod 41 to form the disinfection and sterilization effect of the air, the air after ionization is mixed with ozone by-products, in order to reduce the ozone content in the air exhausted from the plasma generator, the ozone treatment device 5 is designed and installed at the top of the box body 1, the ozone treatment device 5 is connected to the air pipeline from the purification cavity 11 to the exhaust buffer cavity 12, the air after ionization output from the purification cavity 11 first enters the ozone treatment device 5 to complete the treatment of the ozone component, and then is pumped and exhausted to the exhaust buffer cavity 12 to wait for output, the ozone treatment device 5 can decompose and treat the ozone component, and ensures that the ozone content exhausted from the plasma generator is kept in a low concentration state (the ideal state is that no ozone component is exhausted, and all the ozone components are decomposed).

[0021] The plasma generator of the present application is generally used in an indoor environment, and large-particle impurities may be mixed in indoor air, which is not conducive to directly entering the purification cavity 11 for ionization operation, therefore, the air inlet primary filter device 2 is designed and installed at the air inlet of the purification cavity 11 to meet the air inlet filtering requirement, such as Figure 2 and Figure 4As shown, the air inlet primary filter device 2 comprises a total air inlet pipe 21, a filter disc 23 and an air inlet cover 24, the total air inlet pipe 21 is fixedly installed on the outer wall of the box body 1, the total air inlet pipe 21 is connected to the purification cavity 11 in a through manner, the total air inlet pipe 21 is used for air input, the total air inlet pipe 21 has a through hole inside, a step 22 is formed in the through hole, the filter disc 23 is installed against the step 22, the outer wall of the total air inlet pipe 21 is provided with threads, the air inlet cover 24 is threadedly connected to the total air inlet pipe 21, the air inlet cover 24 is connected with a pressure disc flange 241, after the air inlet cover 24 is threadedly connected, the pressure disc flange 241 is adapted to be inserted into the total air inlet pipe 21 and make the filter disc 23 be tightly fixed, the cover surface of the air inlet cover 24 is provided with a plurality of grid holes 242, the grid of the air inlet cover 24 is designed to block large pieces of garbage in the air, prevent it from directly entering the air inlet primary filter device 2 to block the filter disc 23, the filter disc 23 is used for filtering air, blocking large particle impurities in the air from entering the purification cavity 11 (blocking large particles above 0.5 microns), with the continuous use of the present application, the large particle impurities blocked on the filter disc 23 will definitely be more and more, the filter disc 23 can be taken out after the air inlet cover 24 is screwed off, cleaned and reused.

[0022] As shown in Figure 2 and Figure 3 , the ozone treatment device 5 comprises a treatment box 51 and a catalytic plate 54, the ozone treatment device 5 adopts a modular design, the treatment box 51 is integrally embedded and installed from the top of the box body 1, to ensure the appearance beauty of the plasma generator, the treatment box 51 is connected with a treatment air inlet 52 and a treatment air outlet 53 at the left and right ends respectively, as shown in Figure 2 , the purification cavity 11 is on the right side, the exhaust buffer cavity 12 is on the left side, therefore the treatment air inlet 52 of the treatment box 51 is on the right side and connected with the pipeline of the purification cavity 11, the treatment air outlet 53 of the treatment box 51 is on the left side and connected with the pipeline of the exhaust buffer cavity 12, air passes through the treatment box 51 from right to left, as shown in Figure 3As shown, several catalytic plate members 54 are arranged in a left-right direction in the processing box 51, and the catalytic plate members 54 have two installation modes, one is that the upper end is closed and the bottom is provided with an air flow gap, which is referred to as upward installation, and the other is that the lower end is closed and the top is provided with an air flow gap, which is referred to as downward installation, and the several catalytic plate members 54 are arranged in an alternating mode, so that a wave-shaped air flow path 55 is formed in the processing box 51, the wave-shaped air flow path 55 can increase the air flow distance and promote the contact time of the air with the catalytic plate members 54, which is beneficial to the sufficient decomposition of the ozone components in the air, and the catalytic plate members 54 of the present application include a skeleton plate 541 made of metal, which is convenient for welding connection to the inner side of the processing box 51, and the skeleton plate 541 is used to bear the installation of catalytic plates 542, the catalytic plates 542 are flat and fixedly installed on the plate surface of the skeleton plate 541, and the catalytic plates 542 are fixedly installed on the front and rear plate surfaces of the skeleton plate 541, and the catalytic plates 542 are made of MINSLITE-B catalyst, which is a catalyst composed of copper and manganese, and after the air contacts the catalytic plates 542, the ozone components in the air are catalytically decomposed into oxygen by the catalyst, realizing pollution-free emission, in order to further improve the ozone treatment effect, the catalytic plate members 54 are designed to be inclined as shown Figure 3 As shown, several catalytic plate members 54 are arranged in a left-right direction in the processing box 51, and the catalytic plate members 54 have two installation modes, one is that the upper end is closed and the bottom is provided with an air flow gap, which is referred to as upward installation, and the other is that the lower end is closed and the top is provided with an air flow gap, which is referred to as downward installation, and the several catalytic plate members 54 are arranged in an alternating mode, so that a wave-shaped air flow path 55 is formed in the processing box 51, the wave-shaped air flow path 55 can increase the air flow distance and promote the contact time of the air with the catalytic plate members 54, which is beneficial to the sufficient decomposition of the ozone components in the air, and the catalytic plate members 54 of the present application include a skeleton plate 541 made of metal, which is convenient for welding connection to the inner side of the processing box 51, and the skeleton plate 541 is used to bear the installation of catalytic plates 542, the catalytic plates 542 are flat and fixedly installed on the plate surface of the skeleton plate 541, and the catalytic plates 542 are fixedly installed on the front and rear plate surfaces of the skeleton plate 541, and the catalytic plates 542 are made of MINSLITE-B catalyst, which is a catalyst composed of copper and manganese, and after the air contacts the catalytic plates 542, the ozone components in the air are catalytically decomposed into oxygen by the catalyst, realizing pollution-free emission, in order to further improve the ozone treatment effect, the catalytic plate members 54 are designed to be inclined as shown

[0023] In order to prevent the occurrence of continuous misarrangement high concentration ozone air, the exhaust module 3 of the present application also includes an ozone concentration detector 32 designed to be installed in the exhaust buffer cavity 12, which is the last stop before the air is discharged from the plasma generator, and the ozone concentration detector 32 can monitor the ozone concentration of the exhaust buffer cavity 12 in real time. The present application designs an upper limit value and a safety valve value for the ozone concentration of the exhaust air. The upper limit value is the highest control value of the ozone concentration of the exhaust air, and if it exceeds the upper limit value, the entire plasma generator needs to be stopped for use. The safety valve value is set to 70%-80% of the upper limit value, which is a device operating state adjustment value. According to the monitoring data of the ozone concentration detector 32, the ionization device 4 needs to be controlled in linkage. When the ozone concentration monitored by the ozone concentration detector 32 approaches the safety valve value, the ionization device 4 needs to be controlled in linkage to reduce the electric field voltage and reduce ozone emission. This may be due to the upper limit of the processing capacity of the ozone treatment device 5. If the ozone concentration continues to rise after the ionization device 4 reduces the electric field voltage, it may also be due to the long-term use of the ozone treatment device 5, which causes the catalyst activity to deteriorate. Subsequent maintenance may require replacement of a new ozone treatment device 5 (the entire box is replaced), as shown in Figure 1 The present application installs a movable door on the front of the box 1, which can be opened for pipe connection and equipment maintenance. The control panel of the present application is installed above the ionization device to facilitate wiring.

[0024] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution that belongs to the idea of the present application is within the protection scope of the present application. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present application are also considered to be within the protection scope of the present application.

Claims

1. A plasma generator capable of controlling the amount of ozone, characterized in that, The device includes a housing (1), an air intake pre-filter (2), and an exhaust module (3). The housing (1) is divided into a purification chamber (11) and an exhaust buffer chamber (12). The purification chamber (11) and the exhaust buffer chamber (12) are connected by a pipeline. The air intake pre-filter (2) is installed and connected to the purification chamber (11). The exhaust module (3) is installed and connected to the exhaust buffer chamber (12). The exhaust module (3) includes an exhaust pump (31). By starting the exhaust pump (31), an air extraction route is formed from the purification chamber (11) to the exhaust buffer chamber (12). An ionization device (4) is installed in the purification chamber (11). An ozone treatment device (5) is installed on the top of the housing (1). The ozone treatment device (5) is connected to the air pipeline from the purification chamber (11) to the exhaust buffer chamber (12).

2. The plasma generator capable of controlling ozone levels according to claim 1, characterized in that, The ionization device (4) includes an electrode rod (41) installed inside the purification chamber (11). The electrode rod (41) is installed above the air intake pre-filter (2). The air outlet of the purification chamber (11) is located at the top of the purification chamber (11).

3. The plasma generator capable of controlling ozone levels according to claim 1, characterized in that, The air intake pre-filtration device (2) includes a main air intake port (21), a filter disc (23) and an air intake hood (24). The main air intake port (21) is connected to the purification chamber (11). A step (22) is formed inside the main air intake port (21). The filter disc (23) is installed against the step (22). The air intake hood (24) is threaded to the main air intake port (21). The air intake hood (24) is connected to a pressure plate flange (241). The pressure plate flange (241) is adapted to be inserted into the main air intake port (21) and presses the filter disc (23) tightly. The surface of the air intake hood (24) is provided with several grid holes (242).

4. A plasma generator capable of controlling ozone levels according to claim 1, characterized in that, The ozone treatment device (5) includes a treatment box (51) and catalyst plates (54). The treatment box (51) is installed by embedding from the top of the housing (1). The treatment box (51) is connected to a treatment air inlet (52) and a treatment air outlet (53) at its left and right ends, respectively. Several catalyst plates (54) are installed in the treatment box (51) in a left-right arrangement. Several catalyst plates (54) are installed alternately up and down to form a wave-shaped airflow path (55) in the treatment box (51).

5. A plasma generator capable of controlling ozone levels according to claim 4, characterized in that, The catalyst plate (54) includes a skeleton plate (541), which is fixedly connected to the inside of the processing box (51). Catalyst plates (542) are fixedly installed on both the front and rear sides of the skeleton plate (541).

6. A plasma generator capable of controlling ozone levels according to claim 4, characterized in that, The catalyst plate (54) is installed at an angle, and adjacent catalyst plates (54) form a conical flow space (56).

7. A plasma generator capable of controlling ozone levels according to claim 1, characterized in that, The exhaust module (3) also includes an ozone concentration detector (32) installed in the exhaust buffer chamber (12), and the ozone concentration detector (32) is linked to the ionization device (4).

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