CN219390009U

CN219390009U - Sterilizable static pressure box based on thermal coupling corona discharge technology

Info

Publication number: CN219390009U
Application number: CN202223290506.XU
Authority: CN
Inventors: 乔彬; 孙丽颖; 贺征; 黄梦琪; 金星河; 李程珂
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-07-21
Anticipated expiration: 2032-12-08

Abstract

The utility model provides a sterilizable static pressure box based on a thermal coupling corona discharge technology, which comprises a static pressure box and a sterilizing device based on the thermal coupling corona discharge technology, wherein the inner surface of the top of the static pressure box is fixed with the sterilizing device. The static pressure box is of a box body structure with an air inlet and an air outlet; the sterilizing device based on the thermal coupling corona discharge technology comprises an array wire electrode, an array plate electrode, a bracket and a heating rod; the array line electrodes and the array plate electrodes are respectively connected with positive and negative alternating currents, and the array line electrodes and the array plate electrodes are distributed in a staggered manner; heating rods are arranged at the two ends of the array plate electrode in a penetrating way; the array line electrode and the array plate electrode are fixed on the inner side of the bracket; the bracket is a U-shaped bracket formed by three stainless steel plates, and the left side and the right side of the bracket are provided with through holes which are matched with the array wire electrode and the heating rod penetrating through the array plate electrode. The utility model enables the static pressure box to have the functions of pressure stabilization and air purification in the air conditioning ventilation system, and relieves the pressure of indoor disinfection and sterilization.

Description

Sterilizable static pressure box based on thermal coupling corona discharge technology

Technical Field

The utility model belongs to the technical field of air sterilization and purification, and particularly relates to a sterilizable static pressure box based on a thermal coupling corona discharge technology.

Background

When the air conditioning ventilation pipeline is mixed with the spray carrying the virus, the air conditioning ventilation pipeline is also possible to be a path for transmitting the virus, so that an air disinfection device which can be applied to an air conditioning ventilation system is developed, and the air conditioning has ventilation and disinfection effects, thus being very necessary.

The static pressure box is a common device in an air conditioning ventilation system, and has the functions of reducing dynamic pressure loss, increasing static pressure, stabilizing air flow and the like.

The disinfection devices commonly used in the market can be divided into adsorption, plasma, photocatalysis and the like in principle, but the phenomenon of secondary pollution caused by desorption and overflow of gas pollutants from an adsorption material may occur in adsorption, the purification capability of the photocatalysis is weaker, and the plasma technology may generate harmful intermediate products and the technology is not mature enough.

The utility model patent 'an aerosol propagation virus inactivating device based on a thermal effect synergistic corona discharge technology' comprises a bottom plate, a first electrode frame and a second electrode frame, realizes the organic combination of a high-voltage electric field, corona and heating, can greatly improve the defects of the traditional single virus inactivating mode, and enhances the virus inactivating efficiency. Therefore, the device can be applied to the static pressure box and is optimized, so that the static pressure box has the functions of stabilizing air flow and sterilizing.

Disclosure of Invention

The utility model aims to provide a sterilizable static pressure box based on a thermal coupling corona discharge technology.

The aim of the utility model is realized by the following technical scheme:

a sterilizable static pressure box based on a thermal coupling corona discharge technology comprises a static pressure box and a sterilizing device based on the thermal coupling corona discharge technology, wherein the inner surface of the top of the static pressure box is fixed with the sterilizing device;

the static pressure box is of a box body structure with an air inlet and an air outlet;

the sterilizing device based on the thermal coupling corona discharge technology comprises an array wire electrode, an array plate electrode, a bracket and a heating rod; the array line electrodes and the array plate electrodes are respectively connected with positive and negative alternating currents, and the array line electrodes and the array plate electrodes are distributed in a staggered manner; heating rods are arranged at the two ends of the array plate electrode in a penetrating way; the array line electrode and the array plate electrode are fixed on the inner side of the bracket; the bracket is a U-shaped bracket formed by three stainless steel plates, and the left side and the right side of the bracket are provided with through holes which are matched with the array wire electrode and the heating rod penetrating through the array plate electrode.

Further, the array wire electrode is of a linear electrode structure, the structure is equal-length metal wires which are equidistantly arranged, and the diameter of the tungsten wire is 2mm.

Further, the array plate electrode is of a plate electrode structure, the structure is of metal plates which are arranged at equal intervals, and the thickness of the plates is 2mm.

Further, three stainless steel plates forming the bracket are all 5mm thick, and the upper side of the bracket is fixed on the inner side of the top of the static pressure box.

Further, the array wire electrode is made of tungsten metal, and the array plate electrode is made of aluminum metal.

Further, the array plate electrode is an equidistant electrode formed by 6 plates, the section shape of the electrode plate is 1/4 of a circle, and each plate is concentric.

Further, the width of the electrode plate is 114mm, and the line radius of the section of the electrode plate is 26mm, 36mm, 46mm, 56mm, 66mm and 76mm from small to large.

Further, the array wire electrode is an equidistant electrode consisting of 5 wire electrodes, and the length of the array wire electrode is 114mm.

The utility model has the beneficial effects that:

the utility model ensures that the static pressure box has the functions of pressure stabilization and air purification in an air conditioning ventilation system, has reasonable design, simple structure and convenient use, and the sterilizing device based on the thermal coupling corona discharge technology can carry out sterilizing and purifying treatment on the air sent into a room to the greatest extent.

Drawings

FIG. 1 is a schematic longitudinal cross-sectional view of the present utility model;

FIG. 2 is a schematic view of a disinfection apparatus of the present utility model;

fig. 3 is a schematic diagram of the structure of the array line electrode and the array plate electrode of the present utility model.

FIG. 4 is a line graph of simulation results of a velocity non-uniformity coefficient, static pressure tank pressure drop, electrode plate contact rate, and overall evaluation index for an embodiment of the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The structure of the utility model is as follows: as shown in fig. 1, mainly comprises a static pressure tank 1 and a sterilizing device 2 based on a thermally coupled corona discharge technology.

The static pressure box 1 is a box body structure with two openings, and can be used for connecting a horizontal air supply branch pipe entering a room with a top air supply opening. In order to reduce the space height of the suspended ceiling occupied by the static pressure box, when the air supply quantity of the room is 300-500 m ³ In the case of/h, the dimensions were designed to be 370 mm. Times.370 mm. Times.180 mm and were composed of stainless steel plates. The two openings respectively form an air inlet 3 and an air outlet 4, the size of the air inlet 3 is 160mm multiplied by 140mm (width multiplied by height), and the size of the air outlet 4 is 200mm multiplied by 200mm (neck)The section size), the tuyere is arranged centrally. The top of the inner surface of the static pressure box is fixed with the outer surface of a bracket 7 in the disinfection device 2.

The sterilizing device 2 based on the thermal coupling corona discharge technology comprises an array wire electrode 5, an array plate electrode 6, a bracket 7 and a heating rod 8, as shown in fig. 2. The array wire electrode 5 is formed by equally arranging metal wires with equal length at intervals of 10mm and is used for high-voltage discharge and corona generation to inactivate viruses for the first time. The array plate electrode is formed by equally-wide concentric 1/4 circles with different radiuses and equidistantly arranged at intervals of 10mm, the array wire electrode and the array plate electrode are staggered, the front-back intervals are 25mm, holes are punched in the support 7 and used for assembling the array wire electrode 5 and the heating rod 8 penetrating through the array plate electrode 6, the heating rod is used for collecting viruses and conducting secondary disinfection through heating, and finally clean air is sent into a room, and the array wire-plate structure is shown in figure 3.

In the utility model, the array wire electrode is made of tungsten metal, the array plate electrode is made of aluminum metal, and the bracket and the static pressure box are made of stainless steel.

The working principle of the utility model is as follows:

as shown in fig. 1, air with virus is blown into a static pressure box through an air inlet 3 in an air conditioning ventilation system, corona is generated by high-voltage discharge through an array wire electrode 5, the air is primarily purified, aerosol with virus is adsorbed onto a plate electrode 6 under the action of an electric field through an array plate electrode 6, the virus is eliminated through heating by a heating rod 8, secondary purification is carried out on the air, and finally clean air is blown out of the static pressure box and is sent to a room.

In order to obtain a better design scheme and optimize the comprehensive effects of pressure stabilization and disinfection of the sterilizable static pressure tank, the utility model carries out numerical simulation on the sterilizable static pressure tank, the section shape of the array plate electrode selected in the simulation is a flat plate and a 1/4 round bent plate, the number of the electrode plates is respectively 4 plates, 5 plates, 6 plates and 7 plates, the plate surface widths of the plate electrodes are respectively changed into 71%,83%,100%,120% and 140% of the side length of the square plate under the same area, and 12 working conditions are totally adopted, as shown in table 1, the simulation result is drawn into a line graph as shown in fig. 4. As can be seen from the calculation result, the working condition 11 has the best performance, and the structure can meet the requirement that the contact rate (disinfection efficiency) of the electrode plate reaches 89.4% when the static pressure drop is only 3.38Pa, and the comprehensive evaluation index reaches 0.87, so that the effects of stabilizing the pressure and disinfecting the static pressure box can be achieved.

Table 1:

the above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A sterilizable static pressure box based on a thermal coupling corona discharge technology, which is characterized in that: comprises a static pressure box (1) and a sterilizing device (2) based on a thermal coupling corona discharge technology, wherein the inner surface of the top of the static pressure box (1) is fixed with the sterilizing device (2);

the static pressure box (1) is of a box body structure with an air inlet (3) and an air outlet (4);

the sterilizing device (2) based on the thermal coupling corona discharge technology comprises an array wire electrode (5), an array plate electrode (6), a bracket (7) and a heating rod (8); the array line electrodes (5) and the array plate electrodes (6) are respectively connected with positive and negative alternating currents, and the array line electrodes (5) and the array plate electrodes (6) are distributed in a staggered manner; heating rods (8) are arranged at two ends of the array plate electrode (6) in a penetrating way; the array wire electrode (5) and the array plate electrode (6) are fixed on the inner side of the bracket (7); the bracket (7) is a U-shaped bracket formed by three stainless steel plates, and the left side and the right side of the bracket are provided with through holes which are matched with the array wire electrode (5) and the heating rod (8) penetrating through the array plate electrode (6).

2. A sterilizable static pressure tank based on thermally coupled corona discharge technology as claimed in claim 1, wherein: the array wire electrode (5) is of a linear electrode structure, the structure is equal-length metal wires which are equidistantly arranged, and the diameter of the tungsten wire is 2mm.

3. A sterilizable static pressure tank based on thermally coupled corona discharge technology as claimed in claim 1, wherein: the array plate electrode (6) is of a plate electrode structure, the structure is of metal plates which are arranged at equal intervals, and the thickness of the plates is 2mm.

4. A sterilizable static pressure tank based on thermally coupled corona discharge technology as claimed in claim 1, wherein: the three stainless steel plates forming the bracket (7) are 5mm thick, and the upper side of the bracket (7) is fixed on the inner side of the top of the static pressure box (1).

5. A sterilizable static pressure tank based on thermally coupled corona discharge technology according to claim 2 or 3, characterized in that: the array wire electrode (5) is made of tungsten metal, and the array plate electrode (6) is made of aluminum metal.

6. A sterilizable static pressure tank based on thermally coupled corona discharge technology according to claim 3, characterized in that: the array plate electrode (6) is an equidistant electrode formed by 6 plates, the section shape of the electrode plate is 1/4 of a circle, and each plate is concentric.

7. A sterilizable static pressure tank based on thermally coupled corona discharge technology as claimed in claim 6, wherein: the width of the electrode plate is 114mm, and the radius of the central line of the section of the electrode plate is 26mm, 36mm, 46mm, 56mm, 66mm and 76mm from small to large.

8. A sterilizable static pressure tank based on thermally coupled corona discharge technology as claimed in claim 2, wherein: the array wire electrode (5) is an equidistant electrode consisting of 5 wire electrodes, and the length of the array wire electrode is 114mm.