A discharge reactor for generating negative ions

Abstract

The discharge reactor for generating negative ions provided by the present invention comprises a discharge reactor body and a plurality of negative ion generators. The negative ion generator is arranged inside a catalyst carrier. When the discharge reactor is working, the negative ion generator is located in the electric field of the discharge reactor. The negative ion generator is provided with power through the conduction of the catalyst carrier. When the negative ion generators are working at the same time, the gas in the fluid channel is always at the same potential. In the process that the gas enters the fluid channel and is first disinfected and sterilized by the discharge reactor, and then flows through the negative ion generator to bring out the negative ions through the airflow, there is no potential difference, the discharge reaction is completely avoided, and the safety factor is improved; and the negative ion generator is arranged inside the discharge reactor, which reduces the space occupied by the negative ion generator and improves the space utilization rate.

Description

Technical Field

[0001] The invention relates to the technical field of high voltage discharge, and in particular to a discharge reactor for generating negative ions. Background Art

[0002] Negative ions are negatively charged gas ions in the air. Some people call negative ions "air vitamins" and believe that, like vitamins in food, they have a very important impact on the life activities of the human body and other organisms. Some even believe that negative ions in the air are related to longevity and call them "longevity factors."

[0003] Therefore, many products on the market place negative ion generators and other sterilization and purification equipment in sequence on the gas flow path, thereby improving the sterilization and disinfection effect. For example, an existing combined disinfection cabinet combines an ozone-free high-voltage discharge reactor with a high-voltage induction negative ion generator and is arranged inside the disinfection cabinet. The fan, high-voltage discharge reactor and high-voltage induction negative ion module are arranged in three layers of stacking intervals, namely, lower, middle and upper layers. The air inside the disinfection cabinet is driven by the fan, first processed by the ozone-free high-voltage discharge reactor, and then the hydrogen and oxygen negative ions generated by the high-voltage induction negative ion generator are brought to the disinfection cabinet to sterilize, deodorize and decompose organic toxic gases.

[0004] However, there are certain problems with the spacing between the high-voltage discharge reactor and the negative ion generator. When the two devices are far apart, the gas potential will gradually decrease in the process of flowing toward the negative ion generator after passing through the high-voltage discharge reactor. After reaching the negative ion generator, a potential difference will be formed between the gas and the high-voltage induction negative ion generator, resulting in the possibility of intermittent discharge, posing a safety hazard. When the settings are close, in order to avoid discharge reactions between the surfaces of the two devices, a strong insulating shell needs to be set up. Both methods will result in a large overall space occupied by the equipment and low space utilization, and there are certain safety hazards. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that a negative ion generator occupies a large space and has certain safety hazards when it is combined with other purification equipment.

[0006] To this end, the present invention provides a discharge reactor for generating negative ions, comprising:

[0007] A discharge reactor body and a number of negative ion generators;

[0008] The discharge reactor body comprises:

[0009] An insulating housing having a mounting cavity with openings at both ends;

[0010] At least one catalyst carrier is a hollow structure with openings at both ends, the inner cavity of the catalyst carrier forms a fluid channel; the fluid channel is connected to the opening of the insulating shell;

[0011] At least one PCB pin board, electrically connected to the catalyst carrier;

[0012] The catalyst carrier and the PCB needle plate are arranged in the installation cavity;

[0013] The negative ion generator is arranged in the fluid channel and fixed on the inner wall of the catalyst carrier.

[0014] Two PCB needle boards are provided, which are arranged in parallel and at intervals in the installation cavity; the discharge surfaces of the two PCB needle boards are arranged in opposite directions;

[0015] Two catalyst carriers are arranged corresponding to the PCB needle plates; one side wall of the catalyst carrier is attached to the discharge surface, and the other side wall facing the catalyst carrier is attached to the inner wall of the insulating shell.

[0016] The edges of the two PCB needle plates and the opening edge of the PCB needle plate and the catalyst carrier are sealed.

[0017] The discharge reactor body also includes:

[0018] The sealing frame strip is arranged between the two catalyst carriers; the sealing frame strip is arranged along the edge of the PCB needle board and fixedly connects the two PCB needle boards.

[0019] Also includes:

[0020] At least one supporting bar is arranged between the two PCB boards.

[0021] The open end faces of the catalyst carrier are all extended out of the discharge surface of the PCB needle board; a notch is provided on the side wall of the catalyst carrier located on one side of the discharge surface; the top of the notch is connected to the opening of the catalyst carrier on the same side, and the bottom is flush with the surface of the sealing frame strip away from the PCB needle board; an installation space is enclosed between the two opposite notches on the catalyst carrier;

[0022] Also includes:

[0023] Two sealing frame plates are arranged corresponding to the openings at both ends of the catalyst carrier; the sealing frame plate is a hollow structure with openings at both ends; the sealing frame plate is arranged in the installation space, and the end surface abuts on the sealing frame strip; the circumferential outer wall surface of the sealing frame plate abuts on the inner wall surfaces of the two catalyst carriers.

[0024] The cross sections of the insulating shell, the catalyst carrier and the sealing frame plate are all square.

[0025] The negative ion generator comprises:

[0026] The mounting structure is fixed on the inner wall surface of the catalyst carrier; the two ends of the mounting structure are provided with fixing parts extending in the same direction; the mounting structure is a conductor; the fixing parts opposite to each other form electrodes;

[0027] The catalyst tube is arranged between the two fixing parts, and both ends are fixed on the corresponding fixing parts respectively;

[0028] A negative ion releasing needle is arranged in the catalyst tube and located on the axis of the catalyst tube;

[0029] The tip of the negative ion releasing needle extends out of the fixing portion.

[0030] It also includes a limiting structure, which is arranged on the fixing portion and is suitable for limiting the radial position of the catalyst tube.

[0031] The limiting structure includes a plurality of limiting parts; the limiting parts are distributed on the fixing part along the circumference of the catalyst tube.

[0032] The limiting structure and the fixing portion are both formed on the mounting structure.

[0033] The negative ion generator is arranged at the outlet of the fluid channel; the tip of the negative ion releasing needle extends out of the surface of the PCB needle board.

[0034] Also includes:

[0035] The spacer bar is arranged on the sealing frame bar at the outlet end of the fluid channel; the spacer bar is arranged higher than the tip of the negative ion releasing needle.

[0036] The technical solution of the present invention has the following advantages:

[0037] 1. The discharge reactor for generating negative ions provided by the present invention comprises a discharge reactor body and a plurality of negative ion generators. The discharge reactor body comprises an insulating shell, at least one catalyst carrier and at least one PCB needle board, the catalyst carrier and the PCB needle board are arranged in the installation cavity of the insulating shell, the catalyst carrier is a hollow structure with openings at both ends, and its inner cavity forms a fluid channel, the fluid channel is connected with the opening of the insulating shell to facilitate gas circulation, and the negative ion generator is arranged in the fluid channel and fixed on the inner wall of the catalyst carrier. The negative ion generator is arranged inside the catalyst carrier, when the discharge reactor is working, the negative ion generator is located in the electric field of the discharge reactor, and the negative ion generator is provided with power through the conduction of the catalyst carrier. When the negative ion generators are working at the same time, the gas in the fluid channel is always at the same potential, and there is no potential difference in the process that the gas enters the fluid channel, is first disinfected and sterilized by the discharge reactor, and then flows through the negative ion generator to bring out the negative ions through the airflow, so that the discharge reaction is completely avoided, and the safety factor is improved. In addition, the negative ion generator is arranged inside the discharge reactor, which reduces the occupied space of the negative ion generator and improves the space utilization rate.

[0038] 2. The discharge reactor for generating negative ions provided by the present invention has two PCB needle plates, and two catalyst carriers are arranged corresponding to the PCB needle plates. One PCB needle plate is electrically connected to one catalyst carrier, and the catalyst carrier has a hollow structure with openings at both ends. When the space size is constant, the surface area of ​​the inner wall provided by arranging two catalyst carriers side by side in the same space is larger, more metal ions are released per unit time, and the working efficiency of the discharge reactor is improved.

[0039] 3. The discharge reactor for generating negative ions provided by the present invention is sealed between the edges of the two PCB needle plates and between the PCB needle plates and the opening edge of the catalyst carrier to prevent the discharge reactor from being disturbed by water vapor when decomposing organic toxic waste gases such as dioxins, thereby affecting the gas decomposition efficiency and even causing the possibility of damaging the discharge reactor.

[0040] 4. The discharge reactor for generating negative ions provided by the present invention has an installation structure in which the electrodes at both ends of the catalyst tube are directly formed by a conductor and a wire connecting the electrodes at both ends is formed, and the wire portion is directly fixed to the inner wall of the catalyst carrier through the wire portion, for example, the wire portion is directly welded to the inner wall of the catalyst carrier, which has a simple structure and high space utilization.

[0041] 5. The discharge reactor for generating negative ions provided by the present invention has a spacer bar arranged on the sealing frame bar at the outlet end of the fluid channel. The spacer bar is higher than the tip of the negative ion releasing needle in the direction of fluid flow to avoid mutual interference between the tips of the negative ion generators in the catalyst carriers on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 This is a schematic diagram of the exploded structure of a discharge reactor for generating negative ions according to the present invention;

[0044] Figure 2 It is a partial structural schematic diagram of a discharge reactor for generating negative ions according to the present invention;

[0045] Figure 3 A schematic diagram of the installation structure of a discharge reactor for generating negative ions according to the present invention;

[0046] Figure 4 It is a schematic structural diagram of a discharge reactor for generating negative ions according to the present invention;

[0047] Figure 5 for Figure 4 Schematic diagram of the middle AA direction.

[0048] Description of reference numerals:

[0049] 1. Insulating shell; 11. Shell; 12. Cover plate; 2. Catalyst carrier; 21. Notch; 3. PCB needle plate; 4. Negative ion generator; 41. Installation structure; 411. Fixing part; 412. Limiting part; 42. Catalyst tube; 43. Negative ion release needle; 5. Sealing frame strip; 6. Support strip; 7. Sealing frame plate; 8. Spacer strip. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] Example 1

[0055] The present embodiment provides a discharge reactor for generating negative ions, comprising a discharge reactor body and a plurality of negative ion generators 4. The discharge reactor body comprises an insulating shell 1, at least one catalyst carrier 2 and at least one PCB pin board 3, wherein the catalyst carrier 2 and the PCB pin board 3 are arranged in the installation cavity of the insulating shell 1, the catalyst carrier 2 is a hollow structure with openings at both ends, and its inner cavity forms a fluid channel, and the fluid channel is connected to the opening of the insulating shell 1 to facilitate gas circulation, and the negative ion generator 4 is arranged in the fluid channel and fixed on the inner wall of the catalyst carrier 2. The catalyst carrier 2 is a conductor, such as a copper body, a steel body, etc.

[0056] In this embodiment, Figure 1 As shown, two PCB needle boards 3 are provided, and two catalyst carriers 2 are provided corresponding to the PCB needle boards 3. One PCB needle board 3 is electrically connected to one catalyst carrier 2. Under the condition of a certain space size, the surface area of ​​the inner wall provided by arranging two catalyst carriers 2 in parallel in the same space is larger, and more metal ions are released per unit time, thereby improving the working efficiency of the discharge reactor. The insulating shell 1 includes a shell 11 and a cover plate 12. The shell 11 and the cover plate 12 are both made of insulating materials. The shell 11 is a square box-shaped structure with openings at both ends. A mounting opening is provided on a side wall surface adjacent to the openings at both ends, so as to facilitate the installation of other components into the mounting cavity of the shell 11. The cover plate 12 is suitable for covering and fixing on the mounting opening of the side wall after the installation is completed.

[0057] like Figure 1 or Figure 2As shown, two PCB needle boards 3 are arranged in parallel and at intervals in the installation cavity, the discharge surfaces of the two PCB needle boards 3 are arranged back to back, a number of support bars 6 are arranged between the two PCB needle boards 3, all the support bars 6 are arranged in parallel and evenly spaced, and sealing frame bars 5 are also arranged along the edges of the two PCB needle boards 3. The sealing frame bars 5 are fixedly pressed against the edges of the PCB needle boards 3, and the opposite side walls of the sealing frame bars 5 are respectively flush with the two discharge surfaces of the two PCB needle boards 3 that are arranged back to back. The catalyst carrier 2 is a hollow structure with openings at both ends, and its cross-section is square. One side wall of the catalyst carrier 2 is attached to the discharge surface of the PCB needle board 3, and the catalyst carrier 2 is energized through the PCB needle board 3. The catalyst carrier 2 and the PCB needle board 3 are installed in the installation cavity of the shell 11. The side wall of the catalyst carrier 2 away from the discharge surface is attached to the inner wall surface of the shell 11 and the inner wall surface of the cover plate 12 to prevent the catalyst carrier 2 and the PCB needle board 3 from moving in the shell 11. The opening edge of the PCB needle board 3 and the catalyst carrier 2 is sealed by sealant or the like to prevent the discharge reactor from being disturbed by water vapor when decomposing organic toxic gases, dioxins and other waste gases to produce discharge, thereby affecting the gas decomposition efficiency and even the possibility of damaging the discharge reactor. The opening end faces of the catalyst carrier 2 are all extended out of the discharge surface of the PCB pin plate 3. A notch 21 is formed on the side wall of the catalyst carrier 2 on the discharge surface side by removing material. The top of the notch 21 is connected to the opening of the catalyst carrier 2 on the same side, and the bottom is flush with the surface of the sealing frame strip 5 away from the PCB pin plate 3. The installation space is enclosed between the two opposite notches 21 on the catalyst carrier 2. Figure 1 As shown, the two sealing frame plates 7 are arranged corresponding to the openings at both ends of the catalyst carrier 2, and the sealing frame plates 7 are hollow structures with openings at both ends, such as Figure 5 As shown, the sealing frame plate 7 is arranged in the installation space surrounded by two opposite notches 21 , and the end surface abuts against the sealing frame strip 5 , and the circumferential outer wall surface of the sealing frame plate 7 abuts against the inner wall surfaces of the two catalyst carriers 2 .

[0058] like Figure 1 As shown, the negative ion generator 4 includes a mounting structure 41, a catalyst tube 42 and a negative ion release needle 43. In this embodiment, the mounting structure 41 is a conductor, such as a galvanized iron plate. Figure 3 As shown, the two ends of the mounting structure 41 are provided with fixing parts 411 extending in the same direction, and the two opposite fixing parts 411 respectively form electrodes. The fixing parts 411 are circular and match the cross-sectional shape of the catalyst tube 42. A limiting structure is also provided on the fixing part 411, and the limiting structure includes a plurality of limiting parts 412, such as Figure 3As shown, three limiting parts 412 are arranged on each fixing part 411, which are distributed along the circumference of the catalyst tube 42. The catalyst tube 42 is arranged between two fixing parts 411, and both ends are respectively fixed on the corresponding fixing parts 411. The limiting parts 412 are bent toward the catalyst tube 42 to form radial limiting for the catalyst tube 42, and the catalyst tube 42 is fixed between the two fixing parts 411. A through hole is provided in the center of the fixing part 411. The negative ion release needle 43 is arranged in the catalyst tube 42 and is located on the axis of the catalyst tube 42. The negative ion release needle 43 is inserted into the through hole in the center of the fixing part 411, and the tip extends out of the fixing part 411. In this embodiment, the fixing part 411 and the limiting part 412 are both formed on the mounting structure 41.

[0059] In this embodiment, four negative ion generators 4 are provided, but five, six, etc. may also be provided, depending on specific needs. Figure 2 or Figure 4 As shown, two negative ion generators 4 are arranged in the fluid channel of each catalyst carrier 2, and the two negative ion generators 4 are distributed on both sides of the fluid channel outlet. The negative ion generators 4 in the two catalyst carriers 2 are symmetrically arranged. In this embodiment, the negative ion generator 4 is directly welded and fixed on the inner wall of the catalyst carrier 2 close to the discharge surface through the mounting structure 41. Of course, it can also be fixed on other inner wall surfaces, depending on specific needs. The mounting structure 41 uses a conductor to directly form the electrodes at both ends of the catalyst tube 42 and form a wire connecting the electrodes at both ends, and is directly fixed on the inner wall of the catalyst carrier 2 through the wire part. The structure is simple and the space utilization rate is high.

[0060] The tip of the negative ion release needle 43 extends out of the surface of the PCB needle board 3, as shown in FIG. Figure 4 or Figure 5 As shown, a spacer bar 8 with a triangular or trapezoidal cross section is arranged on the sealing frame bar 5 between the negative ion release needles 43 of the two catalyst carriers 2, and the spacer bar 8 is arranged higher than the tip of the negative ion release needle 43 to avoid mutual interference between the tips of the negative ion generators 4 in the catalyst carriers 2 on both sides. The negative ion generator 4 is arranged inside the catalyst carrier 2. When the discharge reactor is working, the negative ion generator 4 is located in the electric field of the discharge reactor, and the negative ion generator 4 is provided with power through the conduction of the catalyst carrier 2. The negative ion generator 4 works at the same time, and the gas in the fluid channel is always at the same potential. When the gas enters the fluid channel, it is first disinfected and sterilized by the discharge reactor, and then flows through the negative ion generator 4 to carry out the negative ions through the airflow. There is no potential difference, and the discharge reaction is completely avoided, which improves the safety factor. In addition, the negative ion generator 4 is arranged inside the discharge reactor, which reduces the space occupied by the negative ion generator 4 and improves the space utilization rate.

[0061] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A discharge reactor for generating negative ions, characterized in that: include: A discharge reactor body and a plurality of negative ion generators (4); The discharge reactor body comprises: An insulating housing (1) having a mounting cavity with openings at both ends; At least one catalyst carrier (2) is a hollow structure with openings at both ends, the inner cavity of the catalyst carrier (2) forming a fluid channel; the fluid channel is connected to the opening of the insulating shell (1); At least one PCB needle board (3) electrically connected to the catalyst carrier (2); The catalyst carrier (2) and the PCB needle plate (3) are arranged in the installation cavity; The negative ion generator (4) is arranged in the fluid channel and fixed on the inner wall of the catalyst carrier (2); The mounting structure (41) is fixed on the inner wall surface of the catalyst carrier (2); the two ends of the mounting structure (41) are provided with fixing parts (411) extending in the same direction; the mounting structure (41) is a conductor; the fixing parts (411) opposite to each other form electrodes; The catalyst tube (42) is arranged between the two fixing parts (411), and both ends are respectively fixed on the corresponding fixing parts (411).

2. The discharge reactor for generating negative ions according to claim 1, characterized in that: Two PCB needle boards (3) are provided, which are arranged in parallel and at intervals in the installation cavity; the discharge surfaces of the two PCB needle boards (3) are arranged in opposite directions; Two catalyst carriers (2) are provided corresponding to the PCB needle plates (3); one side wall of the catalyst carrier (2) is attached to the discharge surface, and the other side wall facing the catalyst carrier is attached to the inner wall of the insulating shell (1).

3. The discharge reactor for generating negative ions according to claim 2, characterized in that: The edges of the two PCB needle plates (3) and the edges of the openings of the PCB needle plates (3) and the catalyst carrier (2) are sealed.

4. The discharge reactor for generating negative ions according to claim 2, characterized in that: The discharge reactor body also includes: A sealing frame strip (5) is arranged between the two catalyst carriers (2); the sealing frame strip (5) is arranged along the edge of the PCB needle boards (3) and fixedly connects the two PCB needle boards (3).

5. The discharge reactor for generating negative ions according to claim 4, characterized in that: Also includes: At least one supporting bar (6) is arranged between the two PCB needle boards (3).

6. The discharge reactor for generating negative ions according to claim 4, characterized in that: The open end faces of the catalyst carrier (2) are all arranged to extend beyond the discharge surface of the PCB needle plate (3); a notch (21) is provided on the side wall of the catalyst carrier (2) located on one side of the discharge surface; the top of the notch (21) is arranged to communicate with the opening of the catalyst carrier (2) on the same side, and the bottom is arranged to be flush with the surface of the sealing frame strip (5) away from the PCB needle plate (3); An installation space is formed between the two opposite notches (21) on the catalyst carriers (2); Also includes: Two sealing frame plates (7) are arranged corresponding to the openings at both ends of the catalyst carrier (2); The sealing frame plate (7) is a hollow structure with two ends open; the sealing frame plate (7) is arranged in the installation space, and the end face abuts against the sealing frame strip (5); the circumferential outer wall surface of the sealing frame plate (7) abuts against the inner wall surfaces of the two catalyst carriers (2).

7. The discharge reactor for generating negative ions according to claim 6, characterized in that: The insulating housing (1), the catalyst carrier (2) and the sealing frame plate (7) all have square cross sections.

8. A discharge reactor for generating negative ions according to any one of claims 1 to 7, characterized in that: The negative ion generator (4) comprises: A negative ion releasing needle (43) is arranged in the catalyst tube (42) and is located on the axis of the catalyst tube (42); The tip of the negative ion releasing needle (43) is arranged to extend out of the fixing portion (411).

9. The discharge reactor for generating negative ions according to claim 8, characterized in that: It also includes a limiting structure, which is arranged on the fixing portion (411) and is used to limit the radial position of the catalyst tube (42).

10. The discharge reactor for generating negative ions according to claim 9, characterized in that: The limiting structure comprises a plurality of limiting portions (412); the limiting portions (412) are distributed on the fixing portion (411) along the circumference of the catalyst tube (42).

11. The discharge reactor for generating negative ions according to claim 10, characterized in that: The limiting structure and the fixing portion (411) are both formed on the mounting structure (41).

12. The discharge reactor for generating negative ions according to claim 8, characterized in that: The negative ion generator (4) is arranged at the outlet of any of the fluid channels; the tip of the negative ion releasing needle (43) is arranged to extend out of the surface of the PCB needle board (3).

13. The discharge reactor for generating negative ions according to claim 12, characterized in that: Also includes: The spacer bar (8) is arranged on the sealing frame bar (5) at the outlet end of the fluid channel; the spacer bar (8) is arranged higher than the tip of the negative ion releasing needle (43).

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