CN116582990A - Static electricity eliminating system, glove box and static electricity eliminating method - Google Patents

Abstract

The application relates to a static electricity eliminating system, which comprises a main body, wherein the main body comprises a cavity, the cavity comprises a first area, a second area and a static electricity eliminating area, the first area is communicated with the second area, and gas flowing through the second area can flow back to the first area through the static electricity eliminating area; the heating device is arranged in the first zone and used for heating the gas in the first zone, and the heated gas in the first zone can flow to the second zone; the refrigerating device is arranged in the second area and used for cooling the gas in the second area, and the cooled gas in the second area can flow to the static removing area; and the ion generating device is arranged in the chamber and is used for enabling the gas flowing to the static removing area to carry positive and negative ions. The motion space of the gas in the static elimination system is matched with the whole cavity, the flowing gas and the static elimination area have larger contact area, the gas flow velocity is uniform, the wind force is smaller, and the static elimination system can adapt to various static elimination working conditions.

Description

Static electricity eliminating system, glove box and static electricity eliminating method

Technical Field

The application relates to the field of glove boxes, in particular to a static electricity eliminating system, a glove box and a static electricity eliminating method.

Background

A glove box is a laboratory apparatus in which a high-purity inert gas is filled into a box body and active substances therein are circularly filtered. The glove box can provide an anhydrous, anaerobic and dust-free ultrapure environment for production or experiments, is an ideal device for carrying out scientific experiments, and is widely applied to the fields of biochemistry, metallurgy, electronics, chemical industry, geology, mineral products, medicine and the like. The glove box has the advantages of high tightness, long pressure maintaining time, simplicity in operation and the like, and has the defects that static electricity is easy to generate in the glove box, dust is easy to adsorb in an operation area, and experimental precision and effect are affected.

At present, most common static electricity eliminating methods adopt gun type, fan type and bar type static electricity eliminating equipment, and a large amount of generated positive and negative charged air clusters are blown to a target area for static electricity elimination. However, when the static eliminating equipment is applied to devices such as glove boxes, the static eliminating equipment has some defects, for example, the area of a static treatment area is smaller, static protection dead angles can be left, and the hidden danger of static damage exists; the wind strength is not easy to adjust, the adaptability of the wind power generator is weak facing different working condition demands, and the use demands of a static removing area and the static removing efficiency can be possibly influenced.

Disclosure of Invention

Based on the above, in order to solve the above technical problems, a novel static electricity eliminating system, glove box and static electricity eliminating method are provided, which not only can realize static electricity elimination in a large area, but also can adapt to various static electricity eliminating working conditions, and have better adaptability.

The first aspect of the present application provides a static electricity eliminating system comprising: the main body comprises a cavity, the cavity comprises a first area, a second area and a static removing area, the first area is communicated with the second area, and gas flowing through the second area can flow back to the first area through the static removing area; the heating device is arranged in the first zone and used for heating the gas in the first zone, and the heated gas in the first zone can flow to the second zone; the refrigerating device is arranged in the second area and used for cooling the gas in the second area, and the cooled gas in the second area can flow to the static removing area; and the ion generating device is arranged in the chamber and is used for enabling the gas flowing to the static removing area to carry positive and negative ions. The motion space of the gas in the static elimination system is matched with the whole cavity, the flowing gas and the static elimination area have larger contact area, the gas flow velocity is uniform, the wind force is smaller, and the static elimination system can adapt to various static elimination working conditions.

In one embodiment, the chamber comprises a heat insulating device, the heat insulating device is arranged between the first area and the second area, and an air inlet channel is arranged on the heat insulating device and is used for enabling air to enter the first area. The heat insulation device is more beneficial to gas circulation, so that mutual interference between heated gas in the first zone and cooling gas in the second zone is reduced, and good gas flow is realized between the first zone and the second zone.

In one embodiment, the chamber includes a flow guide means for guiding the gas from the first zone into the second zone. The arrangement of the flow guiding device enables heated gas in the first area to flow to the second area more smoothly, effectively controls the flowing direction of the heated gas, and can guide the heated gas in the first area to the second area at different positions, so that the applicability of the static electricity eliminating system is improved.

In one embodiment, the chamber further includes a cold gas channel for allowing the gas cooled by the second region to enter the de-static region. The channel can enable the cooled gas to effectively flow to the static removing area, is beneficial to gas circulation and realizes static removal.

In one embodiment, the ion generating device is disposed on a side of the refrigeration device adjacent to the destaticizing zone. The device can better control the circulating flow of the gas with the positive and negative ions and improve the static electricity removing effect.

In one embodiment, the ion generating device and the refrigerating device are connected through a cooling pipeline. The cool air output by the refrigerating device can flow through the cooling pipeline to cool the ion generating device. The refrigerating device cools the ion generating device, so that ascending heated gas can be cooled under the combined action of the refrigerating device and the ion generating device, and the descending movement of the gas with positive and negative ions is better ensured. The cooled ion generating device can be used as the contact surface between the refrigerating device and the gas through a certain installation layout, so that the structural volume and the number of parts of the static electricity eliminating system are effectively reduced, and the manufacturing cost is reduced.

In one embodiment, the heating device comprises at least 2 electric heating wires, and the at least 2 electric heating wires are arranged in the same plane at intervals. The heating wires arranged on the same plane not only have larger heating area, but also can be fully contacted with the gas, so that the heating effect of the gas is improved.

In one embodiment, the ion generating device comprises a tip discharger. The contact area between the tip discharger and the gas can be increased, the number of positive and negative ions is increased, and a good static electricity removing effect is realized.

The second aspect of the present application provides a glove box comprising the above-described static electricity eliminating system, the main body being box-shaped. The static electricity eliminating system is applied to a glove box, the box body of the glove box is used as a main body of the static electricity eliminating system, and the operation area of the glove box is used as a static electricity eliminating area of the static electricity eliminating system. The glove box can effectively realize static electricity removal and improve experimental precision and effect.

In a third aspect, the present application provides a method of static elimination, comprising: providing a chamber with a first area, a second area and a static removing area, wherein the first area is communicated with the second area, and the gas in the second area can flow back to the first area through the static removing area; heating the gas in the first zone such that the heated gas flows to the second zone; cooling the gas flowing into the second area, and enabling the gas to carry positive and negative ions by utilizing an ion generating device; and (3) returning the gas in the second zone to the first zone through the static removing zone so as to remove static electricity from the object to be removed, which is arranged in the static removing zone, when the gas flows through the static removing zone. The static electricity elimination is realized by utilizing the gas flow with positive and negative ions in the cavity to flow through the static electricity elimination area, the gas flow velocity is uniform and the wind force is smaller, so that the method can adapt to various static electricity elimination working conditions, the adaptability of the method is improved, and the gas flow velocity can be controlled to improve the static electricity elimination efficiency.

Drawings

Fig. 1 is a schematic diagram of a static elimination system in some embodiments of the application.

Fig. 2 is a flow chart of a method of static elimination in some embodiments of the application.

Fig. 3 is a schematic diagram of a glove box in some embodiments of the application.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1 and 3, some embodiments of the present application provide an electrostatic eliminating system, which includes a main body 1, a heating device 2, a cooling device 3, and an ion generating device 4. The main body 1 comprises a chamber, wherein the chamber comprises a first area 11, a second area 12 and a static eliminating area 13, specifically, the first area 11 is a gas heating area, the second area 12 is a gas cooling area, and the static eliminating area 13 is a static eliminating area. The first zone 11 is in communication with the second zone 12, and the gas flowing through the second zone 12 may flow back to the first zone 11 through the destaticizing zone 13.

The heating device 2 is disposed in the first zone 11, and is configured to heat the gas flowing into the first zone 11, and the heated gas exhibits an ascending motion, and the heated gas in the first zone 11 flows to the second zone 12. The heating device 2 can adopt a direct heating mode or an indirect heating mode to heat the gas, such as heating rod heating, infrared heating, electromagnetic heating and the like.

The refrigerating device 3 is arranged in the second area 12 and is used for cooling the gas in the second area 12, the gas is cooled and then moves downwards due to the increased density, and the cooled gas in the second area can flow to the static removing area. The refrigerating apparatus 3 may provide cooling, such as an apparatus for lowering a temperature by evaporation of a refrigerant, or the like.

The ion generating device 4 is disposed in the chamber for causing the gas flowing to the destaticizing zone 13 to be positively and negatively ionized. In a possible embodiment, the ion generating device 4 generates negative ions by using a method of boosting the power frequency voltage to a required voltage by using a high voltage transformer, and releases the negative ions into the gas so that the gas flowing to the static electricity removing region 13 is carried with the negative ions. In one embodiment, the ion generating device 4 may use an external electric field or a high frequency induction electric field to make the gas conduct electricity to generate positive and negative ions, so that the gas flowing to the static electricity removing region 13 is provided with the positive and negative ions.

The static electricity eliminating system realizes static electricity elimination by utilizing the flow of gas in the cavity, the movement space of the gas is matched with the whole cavity, the gas and the static electricity eliminating area 13 can generate larger contact surface, the gas flow velocity is uniform and the wind force is smaller, the static electricity eliminating system can adapt to various static electricity eliminating working conditions, and the adaptability of the static electricity eliminating system is improved.

In some embodiments, the heating device 2 generates heat by means of electric heating wires, comprising at least 2 electric heating wires, at least 2 electric heating wires being arranged in the same plane at intervals. A certain gap exists between adjacent electric heating wires so as to facilitate the passage of gas. The heating wires arranged on the same plane not only have larger heating area, but also can be fully contacted with the gas, so that the heating effect on the gas is improved.

In some embodiments, the ion generating device 4 is disposed on a side of the refrigeration device 3 proximate to the destaticizing zone 13. The device can better control the movement of positive and negative ions and improve the static electricity removing effect. The rising heated gas will have a greater density when it encounters the refrigerating device 3 and will move downwards under the action of gravity and the pressure difference of the flowing gas. In the descending process, the gas passes through the ion generating device 4, so that positive and negative ions are fully carried in the descending gas, and the positive and negative ions are carried to the static eliminating area 13 of the chamber by the gas, thereby realizing the static eliminating effect.

Further, in the embodiment, the ion generating device 4 is connected with the refrigerating device 3 through a cooling pipeline, and the cool air output by the refrigerating device 3 can flow through the cooling pipeline to cool the ion generating device 4. The refrigerating device 3 cools the ion generating device 4, so that ascending heated gas can be cooled under the combined action of the refrigerating device 3 and the ion generating device 4, and the descending movement of the gas with positive and negative ions is better ensured. The arrangement can adjust the installation layout of the two in the second area 12, so that the rising heated gas is directly cooled by the ion generating device 4, namely the cooled ion generating device 4 can be used as the contact surface between the refrigerating device 3 and the gas, thereby effectively reducing the structural volume and the number of parts of the static electricity eliminating system and reducing the manufacturing cost.

In some embodiments, the ion generating device 4 comprises a tip discharger, such as a metal-faced-array conical tip discharger. The contact area between the tip discharger and the gas can be increased, a large amount of positive and negative ions can be generated through the tip discharger, and the static eliminating effect of the static eliminating system is improved.

In some embodiments, the chamber further comprises a heat insulation means 5, the heat insulation means 5 being arranged between the first zone 11 and the second zone 12, the heat insulation means 5 being provided with an inlet channel 51, the inlet channel 51 being arranged for letting gas into the first zone 11. The heated gas and the cooled gas can be separated in a certain area under the action of the heat insulation device 5. The heat insulation device 5 enables gas to enter the first zone 11 through the gas inlet channel 51, so that mutual interference between heated gas in the first zone 11 and cooling gas in the second zone 12 is reduced, and good gas circulation effect is achieved between the first zone 11 and the second zone 12.

In the static electricity eliminating system, the chamber also comprises a flow guiding device 6, and the flow guiding device 6 is used for guiding the gas to enter the second zone 12. The flow guiding device 6 is disposed between the first region 11 and the second region 12, so that the heated gas in the first region 11 can smoothly flow to the second region 12, and the flow direction of the heated gas is effectively controlled. In addition, when a plurality of second regions 12 exist in the static electricity eliminating system, the flow guiding device 6 can guide the heated gas of the first region 11 to the second regions 12 at different positions, so that the adaptability of the static electricity eliminating system is improved.

The static electricity eliminating system in the embodiment of the application comprises a main body 1, a heating device 2, a refrigerating device 3 and an ion generating device 4 which are in a cavity structure, so that gas in the cavity flows, and static electricity elimination is realized by utilizing the neutralization of positive and negative ions in the gas and charges in a static electricity eliminating area 13.

The static eliminating system has larger contact area with the static object to be removed in the static removing area, improves the static removing effect, has uniform gas flow speed and smaller wind force in the static removing process, can adapt to various working conditions, such as static removing working conditions containing powder, and has better adaptability.

Referring to fig. 2, according to the above-mentioned static electricity eliminating system, the present application further provides a static electricity eliminating method in some embodiments, which specifically includes the following steps: s100, providing a chamber with a first zone 11, a second zone 12 and a static removing zone 13, wherein the first zone 11 is communicated with the second zone 12, and the gas in the second zone 12 can flow back to the first zone 11 through the static removing zone 13; s200 heating the gas of the first zone 11 so that the heated gas flows to the second zone 12; s300, cooling the gas flowing into the second area 12, and enabling the gas to carry positive and negative ions by utilizing the ion generating device 4; s400, the gas in the second region 12 is returned to the first region 11 through the static eliminating region 13, so as to eliminate static electricity of the object to be removed placed in the static eliminating region 11 when the gas flows through the static eliminating region 11.

The heating device 2 is used for heating the gas in the first region 11, the gas is heated and then moves upwards due to the density reduction, a pressure difference is generated between the heated gas and the unheated gas in other regions, and the heated gas flows to the second region 12 of the chamber under the action of the pressure difference. The second zone 12 is provided with a refrigerating device 3, the refrigerating device 3 cools the heated gas flowing into the second zone 12, the gas is cooled and then moves downwards due to the increased density, and the cooled gas flows back to the first zone 11 due to the pressure difference, namely, the gas flow is formed between the first zone 11 and the second zone 12. The gas flowing to the static electricity removing area 13 is provided with positive and negative ions by the ion generating device 4, so that the static electricity of the static electricity removing area 13 is prepared.

When the static removing area 13 receives the gas with the positive and negative ions, the positive and negative ions in the gas and the charges of the static removing area 13 are neutralized, and the static elimination of the static removing object placed in the static removing area 13 is completed. The gas flowing through the destaticizing zone 13 flows back again to the first zone 11 by flowing, restarting the process.

The gas with positive and negative ions can have larger contact area with the object to be removed in the static removing area 13, so that the object to be removed can be fully contacted with the gas with positive and negative ions, and the static removing effect is effectively improved. In the process of eliminating static electricity, the static electricity elimination is realized by utilizing the gas with positive and negative ions formed in the cavity to flow through the static electricity eliminating area 13, the gas flow velocity is uniform and the wind power is smaller, so that the device can adapt to various static electricity eliminating working conditions, such as the static electricity eliminating working condition containing powder, the application adaptability is improved, the gas flow velocity can be controlled, and the working efficiency is ensured.

Further, in the static electricity removing process, the temperature in the cavity can be adjusted, and the heating power of the heating device 2 and the refrigerating power of the refrigerating device 3 are respectively adjusted through program linkage, so that the accurate control of the temperature in the cavity is realized, and the experimental precision and effect can be improved.

Referring to fig. 3, fig. 3 shows a schematic diagram of a glove box in some embodiments of the application. The glove box comprises the static electricity eliminating system so as to realize static electricity elimination in the glove box. A glove box with the static elimination system, the box body of which is configured as a main body 1, and the operation area of the glove box is configured as a static elimination area 13, the static elimination system can be fully fused with the glove box, and can be adapted to glove boxes with various structural types (such as glove boxes comprising a single operation area, glove boxes comprising a plurality of operation areas, and the like).

In some embodiments, the glove box comprises two operation areas, the box body (main body 1) of the glove box comprises a first area 11, two second areas 12 and two operation areas (static electricity removing areas 13), the first area 11 is arranged between the two second areas 12, the two operation areas are respectively arranged in the two second areas 12, and the two second areas 12 are respectively arranged at two sides in the box cavity.

A flow guiding device 6 is arranged in the upper area of the first area 11 in the box body and is used for guiding the heated gas of the first area 11 to the second areas 12 at two sides; the heating device 2 is arranged in the area below the first area 11 in the box body, the heating device 2 is a plurality of electric heating wires arranged on the same plane, and enough gaps are reserved among the electric heating wires to enable gas to pass through.

The two second areas 12 in the box body are arranged in the same structure, a refrigerating device 3, an ion generating device 4 and a cold gas channel 41 are sequentially arranged in the upper area of the second areas 12 in the box body from top to bottom, and the discharger on the ion generating device 4 is a metal surface array type conical tip discharger; an operating zone is provided in the lower region of the second zone 12 in the tank.

A heat insulation device 5 is arranged between the first area 11 and the second area 12 in the box body, the upper side of the heat insulation device 5 is connected with the cold air channel 41, an air inlet channel 51 is arranged below the heat insulation device 5, and an electric heating wire is arranged above the air inlet channel 51 so as to heat the air in the first area 11 better.

The glove box heats the gas in the first area 11 by using the heating device 2, the heated gas rises, flows to the area above the second area 12 by the flow guiding device 6, the heated gas is contacted with the ion generating device 4 and is cooled in the contact process, a large amount of gas with positive and negative ions is generated, the density of the gas with positive and negative ions is increased after cooling and falls to the operation area by the cold gas channel 41, the positive and negative ions in the gas and the electric charge in the operation area are subjected to static neutralization, so that static elimination of the operation area is realized, the gas enters the first area 11 by the air inlet channel 41 after flowing through the operation area, and the process is restarted by the heating device 2.

In the whole process of eliminating static electricity in the glove box, the motion space of the gas with positive and negative ions is matched with the whole second area 12, and the gas can have a larger contact area with the operation area, namely, a larger static electricity eliminating area can be generated, so that static electricity elimination of the whole operation surface of the operation area is realized. The glove box can keep a static-free state, and the precision and effect of the experiment are improved.

The glove box forms flowing gas by utilizing the principles of heated rising and cooled falling of gas, has uniform gas flow velocity and smaller wind power, is suitable for various static electricity removing working conditions, has no static electricity protection dead angle, avoids static electricity damage and has good adaptability.

The glove box can generate a chimney effect in the static elimination process, so that the gas circulation can be accelerated, and the static elimination efficiency is improved; meanwhile, the heating device 2 and the refrigerating device 3 are arranged in the box body, so that the temperature in the box body can be accurately controlled in the static electricity removing process, the environment requirements of different operating conditions can be matched, the adaptability of the glove box is further improved, and the experimental precision and the product quality are effectively improved. The glove box reduces the structure and the number of parts, reduces the manufacturing cost, and can also adapt to different operation conditions.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (10)

1. A static elimination system, comprising:

the main body comprises a cavity, wherein the cavity comprises a first area, a second area and a static removing area, the first area is communicated with the second area, and gas flowing through the second area can flow back to the first area through the static removing area;

the heating device is arranged in the first zone and is used for heating the gas in the first zone, and the heated gas in the first zone can flow to the second zone;

the refrigerating device is arranged in the second area and used for cooling the gas in the second area, and the cooled gas in the second area can flow to the static removing area; and

and the ion generating device is arranged in the cavity and is used for enabling the gas flowing to the static removing area to carry positive and negative ions.

2. The static elimination system according to claim 1, further comprising a thermal insulation device in said chamber, said thermal insulation device being disposed between said first zone and said second zone, said thermal insulation device having an air inlet channel disposed thereon for allowing air to enter said first zone.

3. The static elimination system according to claim 1, further comprising flow directing means within said chamber for directing gas from said first zone into said second zone.

4. The static elimination system according to claim 1, further comprising a cold gas channel within said chamber for passing gas cooled by said second zone into said static elimination zone.

5. The static elimination system according to claim 1, wherein said ion generating device is disposed on a side of said refrigeration device adjacent to said static elimination zone.

6. The static elimination system according to claim 5, wherein said ion generating device is connected with said refrigerating device through a cooling pipeline, and cold air outputted from said refrigerating device can flow through said cooling pipeline to cool said ion generating device.

7. The static elimination system according to claim 1, wherein said heating means comprises at least 2 electric heating wires, said at least 2 electric heating wires being disposed in a same plane at intervals.

8. The static elimination system according to claim 1, wherein said ion generating means comprises a tip discharger.

9. A glove box comprising the static elimination system of any of claims 1-8, wherein the body is box-shaped.

10. A method of static elimination comprising:

providing a chamber with a first zone, a second zone and a destaticizing zone, wherein the first zone is communicated with the second zone, and the gas in the second zone can flow back to the first zone through the destaticizing zone;

heating the gas of the first zone such that the heated gas flows to the second zone;

cooling the gas flowing into the second area, and enabling the gas to have positive and negative ions by utilizing an ion generating device;

and returning the gas in the second zone to the first zone through the static removing zone so as to remove static electricity from the object to be removed, which is arranged in the static removing zone, when the gas flows through the static removing zone.