阅读说明：本技术 一种有毒有害气体捕集装置 (Poisonous and harmful gas trapping device ) 是由 于金宁 武珊珊 张昌运 刘波 赵盛 何春宏 孔飞 于 2020-05-28 设计创作，主要内容包括：本发明公开了一种捕集有毒有害气体的装置,涉及有毒有害气体收集技术领域,包括上下相对设置的排风体和送风体,送风体朝上设置,用于将有毒有害气体向上吹送,排风体朝下设置,用于收集有毒有害气体并从顶部的排风管排出,在排风体、送风体之间通过送风、排风气流形成包绕有毒有害气体泄露生产设备的稳定吹吸气流。本发明的有益效果是,下部送风罩与上部排风罩相组合的方式,二者形成的稳定吹吸气流对逸散有毒有害物质进行有效捕集,使得有毒有害物质的逸散范围小,捕集效率可达90％,实现了对多泄漏点、大体积设备逸散的有毒有害气体的控制和高效捕集,相较于传统的局部伞形上通风罩,达到同等或者相似效果能耗降低30％以上,能耗大大降低。(The invention discloses a device for trapping poisonous and harmful gas, which relates to the technical field of poisonous and harmful gas collection, and comprises an air exhaust body and an air supply body which are oppositely arranged up and down, wherein the air supply body is arranged upwards and used for blowing the poisonous and harmful gas upwards, the air exhaust body is arranged downwards and used for collecting the poisonous and harmful gas and discharging the poisonous and harmful gas from an exhaust pipe at the top, and a stable blowing and sucking air flow surrounding poisonous and harmful gas leakage production equipment is formed between the air exhaust body and the air supply body through air supply and exhaust air flows. The invention has the advantages that the lower air supply hood and the upper exhaust hood are combined, the stable blowing and sucking airflow formed by the lower air supply hood and the upper exhaust hood can effectively capture the dissipated toxic and harmful substances, the dissipation range of the toxic and harmful substances is small, the capture efficiency can reach 90%, the control and the high-efficiency capture of the toxic and harmful gases dissipated by equipment with multiple leakage points and large volume are realized, compared with the traditional local umbrella-shaped upper ventilation hood, the energy consumption is reduced by more than 30% under the same or similar effect, and the energy consumption is greatly reduced.)

1. The toxic and harmful gas trapping device is characterized by comprising an air exhaust body and an air supply body which are oppositely arranged from top to bottom, wherein the air supply body is arranged upwards and used for blowing toxic and harmful gas upwards, the air exhaust body is arranged downwards and used for collecting the toxic and harmful gas and discharging the toxic and harmful gas from an exhaust pipe at the top, and stable blowing and sucking air flow surrounding toxic and harmful gas leakage production equipment is formed between the air exhaust body and the air supply body through air supply and exhaust air flow.

2. The poisonous and harmful gas trapping device of claim 1, wherein the blowing body includes an air inlet pipe, a blowing hood and a plurality of blowing ports, the air inlet pipe is fixedly connected to the blowing hood, and the plurality of blowing ports are uniformly formed on the upper surface of the blowing hood.

3. The poisonous and harmful gas trapping device as claimed in claim 2, wherein the blower housing is of a one-piece structure of a clip or a ring, and is set according to the actual situation of the poisonous and harmful gas leakage production facility.

4. A poisonous and harmful gas trapping device as claimed in claim 3, wherein the blower housing is connected to an air inlet pipe, the air inlet pipe is connected to a blower, and the air from the blower enters and is conveyed along the inner cavity of the blower housing and is supplied upwards through the air outlet of the blower housing.

5. The poisonous and harmful gas trapping device of claim 4, wherein a baffle is further provided in the cavity inside the blast hood to ensure uniform wind velocity of each blast port.

6. The poisonous and harmful gas trap as claimed in claim 5, wherein the air delivery ports are all the same size and are designed in a long strip shape.

7. The poisonous and harmful gas catching device as in claim 1, wherein the exhaust body comprises an exhaust hood, a collection chamber, an exhaust duct, an exhaust port and an exhaust chamber, the bottom of the exhaust hood is connected with the collection chamber, the top of the exhaust hood is connected with the exhaust duct, and a plurality of exhaust ports are further provided inside the collection chamber.

8. The poisonous and harmful gas trap as claimed in claim 7, wherein the hood has a hollow cone-shaped structure, and an upper suction flow is formed to facilitate trapping of poisonous and harmful gas.

9. The poisonous and harmful gas trap as claimed in claim 7, wherein the exhaust chamber is connected to an exhaust outlet for collecting air carrying poisonous and harmful gas from the lower blowing body.

10. The poisonous and harmful gas trapping device of claim 7, wherein the exhaust port, the exhaust cavity and the exhaust duct are all in communication to ensure timely exhaust.

11. The toxic harmful gas trapping device of claim 10, wherein the exhaust duct is further connected to another blower for exhausting the toxic harmful gas trapped in the exhaust duct.

12. The toxic gas trapping device according to claim 10, wherein said exhaust openings are all of the same size and are configured in an elongated configuration.

Technical Field

The invention relates to the technical field of toxic and harmful gas collection, in particular to a toxic and harmful gas trapping device.

Background

The toxic gas is a gaseous or extremely volatile toxic chemical at normal temperature and pressure, is derived from industrial pollution, combustion of coal and petroleum and putrefactive decomposition of biological materials, has stimulation effect on respiratory tract, and is easy to inhale and poison. Including ammonia, ozone, nitrogen dioxide, sulfur dioxide, carbon monoxide, carbon dioxide, hydrogen sulfide, photochemical smog, and the like.

Toxic gases are treated in a variety of ways, including mainly chemically and physically. The chemical method is to react toxic gas with other chemicals, and the toxic gas after the reaction is either non-toxic or becomes a solid substance. The non-toxic gas can avoid the damage to human body, and the solid matter is convenient to collect and can be used for other purposes. However, the treatment of toxic gases by chemical means consumes large amount of money, and the reaction equipment and the like increase the treatment cost. The physical mode is to absorb the toxic gas through water, and the mode is low in price, and the water absorbing the toxic gas is convenient for centralized treatment and purification. However, not all toxic gases can be absorbed, which may cause the escape of toxic gases and air pollution.

Various toxic and harmful substances are generated in the production process of chemical enterprises, and full-closed measures cannot be taken for part of large-scale equipment due to the requirements of the production process, so that the toxic and harmful substances are inevitably diffused, and meanwhile, the equipment has a plurality of toxic leakage points due to leakage, overflow and leakage, and has the characteristics of multiple dissipation sources and diffusion.

In order to control the concentration of toxic and harmful substances in production places and reduce the health damage of the toxic substances to workers, ventilation measures are often adopted to capture the toxic and harmful substances. When the existing umbrella-shaped cover or other local ventilation covers are adopted for ventilation and trapping, because the toxic substances escape from a plurality of points, the complete trapping of the toxic and harmful substances is difficult to realize. In addition, if the efficiency of capturing toxic and harmful substances needs to be improved, the ventilation volume needs to be increased, which not only causes great increase of energy consumption, but also sometimes can not meet the requirement of large ventilation volume due to the limitation of production process.

Therefore, it is urgently needed to develop a device which is suitable for production equipment, has a plurality of dissipation points and can efficiently collect dissipated toxic and harmful substances, and the efficient and timely collection of the toxic and harmful substances can be achieved through a local ventilation mode.

Disclosure of Invention

The invention discloses a toxic and harmful gas trapping device, which aims to solve the technical problems of low efficiency and high energy consumption of the conventional local upper ventilation hood in trapping toxic substances dissipated by conventional equipment with multiple leakage points and large volume.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a poisonous and harmful gas entrapment device, includes the body and the air supply body of airing exhaust that relative up-down set up, wherein, the air supply body sets up upwards for upwards blow poisonous and harmful gas, the body of airing exhaust sets up downwards for collect poisonous and harmful gas and discharge from the exhaust pipe at top air exhaust between body, the air supply body through air supply, air exhaust air current form the stable pressure-vaccum air current that wraps poisonous and reveal production facility.

As a further preferred aspect of the present invention, the air supply body includes an air inlet pipe, a blowing cover and a plurality of blowing ports, the air inlet pipe is fixedly connected to the blowing cover, and the plurality of blowing ports are uniformly arranged on the upper surface of the blowing cover.

As a further preferred aspect of the present invention, the blower cover has an integrated clip structure or a ring structure, and is set according to the actual situation of the toxic and harmful gas leakage production facility.

As a further preferred of the present invention, the blower cover is communicated with an air inlet pipe, the air inlet pipe is connected with a fan, and air delivered by the fan enters and is delivered along the inner cavity of the blower cover and is supplied upwards through an air supply opening on the blower cover.

As a further preferable mode of the present invention, a baffle plate is further disposed in the cavity inside the air supply cover, so as to ensure that the air speed of each air supply outlet is uniform.

In a further preferred embodiment of the present invention, the air blowing ports have the same size and are designed to have a long structure.

As a further preferred aspect of the present invention, the exhaust body includes an exhaust hood, a collection chamber, an exhaust duct, an exhaust port, and an exhaust chamber, the bottom of the exhaust hood is connected to the collection chamber, the top of the exhaust hood is connected to the exhaust duct, and the inner side of the collection chamber is further provided with a plurality of exhaust ports.

As a further preferred aspect of the present invention, the exhaust hood has a hollow conical structure, and an upward suction flow is formed to facilitate trapping of toxic and harmful gases.

As a further preferred aspect of the present invention, the exhaust cavity is communicated with an exhaust outlet, and the exhaust outlet is used for collecting air carrying toxic and harmful gases sent by the lower air supply body.

As a further optimization of the invention, the air outlet, the air exhaust cavity and the air exhaust pipeline are communicated with each other, so that the timely air exhaust is ensured.

As a further preferred of the present invention, the exhaust duct is further connected to another fan for exhausting the toxic and harmful gases trapped in the exhaust duct.

As a further preferred aspect of the present invention, the air outlets have the same size and are designed to have a long strip structure.

The invention has the advantages that the toxic and harmful gas leakage production equipment is arranged at the central position of the air supply hood, the top of the equipment is ensured to be opposite to the upper air exhaust, the fan for supplying air to the air supply body is started, air is supplied to the air supply hood through the air supply pipe, the air is blown upwards through a plurality of air supply ports on the air supply hood, the gas dissipated from the toxic and harmful gas leakage production equipment is blown upwards, the upper hollow conical exhaust hood forms an upper air suction flow to capture the dissipated toxic and harmful gas, and the toxic and harmful gas is exhausted out of the device through another fan through the exhaust pipeline and is sent to the subsequent toxic and harmful gas treatment process for further treatment.

The invention has novel structural design, easy manufacture and low cost, and the stable blowing and sucking airflow formed by the lower air supply hood and the upper exhaust hood can effectively capture the escaped toxic and harmful substances, so that the escaped toxic and harmful substances have small escape range, the capture efficiency can reach 90 percent, the control and the high-efficiency capture of the toxic and harmful gases escaped by equipment with multiple leakage points and large volume are realized, and compared with the traditional local umbrella-shaped upper ventilation hood, the energy consumption is reduced by more than 30 percent to achieve the same or similar effect, and the energy consumption is greatly reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional view of the air discharging body according to the present invention.

Wherein, 1-air supply body; 11-an air inlet pipe; 12-air supply hood; 13-an air supply outlet; 2-an exhaust body; 21-exhaust hood; 22-a collection chamber; 23-an exhaust duct; 24-an air outlet; 25-a venting cavity;

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1

As shown in fig. 1 and 2, a poisonous and harmful gas trapping device comprises an air exhaust body 2 and an air supply body 1 which are oppositely arranged up and down, wherein the air supply body 1 is arranged upwards and used for blowing poisonous and harmful gas upwards, the air exhaust body 2 is arranged downwards and used for collecting the poisonous and harmful gas and discharging the poisonous and harmful gas from an exhaust pipe at the top, and stable blowing and sucking air flow surrounding a poisonous and harmful gas leakage production device is formed between the air exhaust body 2 and the air supply body 1 through air supply and exhaust air flow.

Specifically, the blower body 1 includes an air inlet pipe 11, a blower housing 12 and air outlets 13, the air inlet pipe 11 is fixedly connected to the blower housing 12, and 68 air outlets 13 are uniformly arranged on the upper surface of the blower housing 12.

In particular, the above-mentioned blowing cover 12 is a square-shaped structure, and is set according to the actual condition of the toxic and harmful gas leakage production equipment.

Specifically, the air supply cover 12 is communicated with the air inlet pipe 11, the air inlet pipe 11 is connected with a fan, and air supplied by the fan enters and is conveyed along the inner cavity of the air supply cover 12 and is supplied upwards through an air supply opening 13 on the air supply cover 12.

In particular, a guide plate is arranged in the cavity inside the air supply cover 12 to ensure that the air speed of each air supply outlet 13 is uniform and the airflow velocity is 0.6 m/s.

In particular, the air supply ports 13 are all the same in size and are designed to have a long strip structure.

Specifically, the exhaust body 2 includes an exhaust hood 21, a collection chamber 22, an exhaust duct 23, exhaust ports 24 and an exhaust chamber 25, the bottom of the exhaust hood 21 is connected to the collection chamber 22, the top of the exhaust hood 21 is connected to the exhaust duct 23, and 68 exhaust ports 24 are further provided inside the collection chamber 22.

In particular, the exhaust hood 21 has a hollow conical structure, and an upward suction flow is formed to facilitate the capture of toxic and harmful gases.

In particular, the exhaust cavity 25 is in communication with an exhaust port 24, and the exhaust port 24 is used for collecting air carrying toxic and harmful gases from the lower air supply body 1.

In particular, the air outlet 24, the air exhaust cavity 25 and the air exhaust pipeline 23 are communicated with each other, so that the air exhaust is ensured to be timely.

In particular, the exhaust duct 23 is connected to another fan for exhausting the toxic and harmful gases trapped in the exhaust duct 23.

In particular, the exhaust vents 24 are all the same size and are designed to be long strip-shaped.

The device use:

the central point that the production facility is revealed to poisonous and harmful gas arranges the shape of returning air supply cover 12 in puts the department, and guarantee the top of equipment just to the body 2 of airing exhaust of top, start the fan for the air supply of air supply body 1, supply air to air supply cover 12 through the blast pipe, wind upwards blows through a plurality of supply-air outlets 13 on the air supply cover 12, the gas that will escape on revealing the production facility from poisonous and blow upwards, the hollow toper exhaust hood 21 of top forms the gas suction stream entrapment and dissipates poisonous and harmful gas, pass through another fan with poisonous and harmful gas eduction gear through exhaust duct 23, send into in the follow-up poisonous and harmful gas processing procedure and do further processing.

The exhaust hood 21 commonly used in the field is of an umbrella-shaped structure, the wind speed at the hood opening is not uniform, the wind speed at the center position is high, and the wind speed at the edge position is low. In addition, the mode of combining the lower air supply hood 12 and the upper exhaust hood 21 of the invention realizes the control and the high-efficiency capture of the dissipated toxic and harmful gases, and compared with a pure upper ventilation hood, the energy consumption is greatly reduced.

Example 2

As shown in fig. 1 and 2, a poisonous and harmful gas trapping device comprises an air exhaust body 2 and an air supply body 1 which are oppositely arranged up and down, wherein the air supply body 1 is arranged upwards and used for blowing poisonous and harmful gas upwards, the air exhaust body 2 is arranged downwards and used for collecting the poisonous and harmful gas and discharging the poisonous and harmful gas from an exhaust pipe at the top, and stable blowing and sucking air flow surrounding a poisonous and harmful gas leakage production device is formed between the air exhaust body 2 and the air supply body 1 through air supply and exhaust air flow.

Specifically, the blower 1 includes an air inlet pipe 11, a blower housing 12 and air outlets 13, the air inlet pipe 11 is fixedly connected to the blower housing 12, and 56 air outlets 13 are uniformly arranged on the upper surface of the blower housing 12.

In particular, the above-mentioned blower housing 12 is of an annular structure, and is set according to the actual situation of the toxic and harmful gas leakage production equipment.

Specifically, the air supply cover 12 is communicated with the air inlet pipe 11, the air inlet pipe 11 is connected with a fan, and air supplied by the fan enters and is conveyed along the inner cavity of the air supply cover 12 and is supplied upwards through an air supply opening 13 on the air supply cover 12.

In particular, a guide plate is arranged in the cavity inside the air supply cover 12 to ensure that the air speed of each air supply outlet 13 is uniform and the airflow velocity is 0.8 m/s.

In particular, the air supply ports 13 are all the same in size and are designed to have a long strip structure.

Specifically, the exhaust body 2 includes an exhaust hood 21, a collection chamber 22, an exhaust duct 23, exhaust ports 24 and an exhaust chamber 25, the bottom of the exhaust hood 21 is connected to the collection chamber 22, the top of the exhaust hood 21 is connected to the exhaust duct 23, and 56 exhaust ports 24 are further disposed inside the collection chamber 22.

In particular, the exhaust hood 21 has a hollow conical structure, and an upward suction flow is formed to facilitate the capture of toxic and harmful gases.

In particular, the exhaust cavity 25 is in communication with an exhaust port 24, and the exhaust port 24 is used for collecting air carrying toxic and harmful gases from the lower air supply body 1.

In particular, the air outlet 24, the air exhaust cavity 25 and the air exhaust pipeline 23 are communicated with each other, so that the air exhaust is ensured to be timely.

In particular, the exhaust duct 23 is connected to another fan for exhausting the toxic and harmful gases trapped in the exhaust duct 23.

In particular, the exhaust vents 24 are all the same size and are designed to be long strip-shaped.

The device use:

the central point that production facility was arranged in annular air supply cover 12 to the hazardous gas reveals the production facility puts the department, and guarantee the top of equipment just to the body 2 of airing exhaust of top, start the fan for the air supply of air supply body 1 air supply, through the blast pipe to air supply cover 12 air supply, wind upwards blows through a plurality of supply-air outlets 13 on the air supply cover 12, the gas that will lose from the hazardous gas reveals the production facility upward blows, the hollow toper exhaust hood 21 of top forms the gas suction stream entrapment and dissipates hazardous gas, pass through exhaust duct 23 with hazardous gas eduction gear through another fan, send into and do further processing in the follow-up hazardous gas processing procedure.

The wind speed of the common umbrella-shaped exhaust hood 21 is uneven at the hood opening, the wind speed at the center is high, and the wind speed at the edge is low, and the invention ensures that the collection cavity 22 can reach the required wind speed by arranging the independent exhaust cavity 25 in the upper exhaust body 2. In addition, the mode of combining the lower air supply hood 12 and the upper exhaust hood 21 of the invention realizes the control and the high-efficiency capture of the dissipated toxic and harmful gases, and compared with a pure upper ventilation hood, the energy consumption is greatly reduced.

Application example 1

The vibrating screen is applied to the post-treatment process of a petrochemical rubber production system, the vibrating screen is arranged at the central position of the air supply hood 12 to capture toxic and harmful substances, stable blowing and sucking air flow is formed between the air supply hood 12 and the exhaust hood 21, the air flow velocity is ensured to be more than 0.5m/s at the section position of the blowing and sucking air flow, and the toxic and harmful substances escaped in the vibrating process are effectively captured in time.

The fact proves that compared with a simple umbrella-shaped exhaust hood 21, the efficiency of trapping the toxic and harmful substances in the process by using the device can be improved to more than 98 percent from 50 to 70 percent, and the energy consumption is reduced by about 30 percent compared with that of an umbrella-shaped upper exhaust hood, thereby obviously reducing the energy consumption.

Application example 2

The ammonia trapping device is applied to a belt filter of a catalyst molecular sieve device for trapping ammonia, the belt filter of the catalyst molecular sieve device adopts an ammonium sulfate solution to soak and wash products, and ammonia escapes in the soaking and washing process. The large open area of the belt filter results in an excessively large surface area of the dissipation source, and the effect of local trapping by using a conventional umbrella-shaped hood is very undesirable.

The air supply hood 12 adopts a square-shaped structure, the groove of the belt filter is positioned in the middle of the air supply hood 12, the top of the air supply hood 12 is ensured to be flush with the groove edge of the belt filter, the exhaust hood 21 is arranged at the position of 50-60 cm above the belt filter, the air supply outlet 13 on the air supply hood 12 is ensured to be arranged opposite to the exhaust outlet 24 on the exhaust hood 21, stable blowing and sucking air flow is formed between the air supply hood 12 and the exhaust hood 21, the air flow velocity is ensured to be more than 0.5m/s at the section position of the blowing and sucking air flow, and toxic substances escaping from the belt filter can be effectively captured.

The fact proves that compared with a simple umbrella-shaped exhaust hood 21, the ammonia collecting device is used for collecting ammonia, the collecting efficiency can be improved to more than 90% from 30-60%, the energy consumption is reduced by about 30% -50% compared with the umbrella-shaped exhaust hood, and the purpose of obviously reducing the energy consumption is achieved.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.