CN204637914U - A kind of confined space harmful substance dispels device - Google Patents

Abstract

The utility model discloses a device for removing harmful substances in a confined space, which comprises: a chassis; an air duct passing through the interior of the chassis, and two ports of the air duct are respectively an air inlet and an air outlet; The flow drive device and adsorption removal device in the channel. The device of the utility model is installed in a closed space when used, and the flow drive device starts to work before or when the closed space is opened, and the gas in the closed space is forcibly discharged and adsorbed into the adsorption removal device.

Description

A device for removing harmful substances in a confined space

technical field

The utility model relates to a device for removing harmful substances in a closed space, in particular to a device for removing harmful substances in a closed space combined with a fan control system and an intelligent control system.

Background technique

In the existing furniture, there are a lot of closed spaces, and with the improvement of the quality of life, the sealing of this closed space is getting higher and higher; however, in the furniture production process, it is often necessary to use paint to coat the surface process, and the paint used in this process often contains toxic substances. If it is in a well-enclosed airtight space, such toxic substances often cannot be eliminated naturally in a short period of time, and with the current consumer health Therefore, after the sale of furniture, consumers often use activated carbon adsorption to remove toxic substances to ensure the safety of furniture.

For example, the Chinese invention patent application document with the publication number CN103846000A discloses a closed space air purifier, which includes a liquid storage bottle for containing a liquid air purifier; On the mouth of the liquid storage bottle, a plurality of air inlets and a plurality of air outlets are symmetrically arranged on the side wall of the cover; a driver is arranged under the cover; a stirring shaft is located at the In the liquid bottle, the top of the stirring shaft is fixed to the driver under the cover, a plurality of tapered blades are arranged on the side wall of the bottom end of the stirring shaft, and the stirring shaft is a hollow shaft; the damper, the A plurality of dampers are symmetrically distributed on the inner wall of the liquid storage bottle. The confined space air cleaner also includes a monitoring unit that includes a plurality of sensors and a display.

However, because the current mid-to-high-end furniture is often made of wood, but in the wood industry, formaldehyde is widely used, and formaldehyde is very difficult to remove in an environment without air convection. Therefore, only activated carbon adsorption is used. In the environment where harmful substances are removed by the method, the effect of activated carbon adsorption to remove formaldehyde is often not obvious; especially when the activated carbon is packed inside by packaging materials such as cloth, the activated carbon has almost no formaldehyde removal effect.

Utility model content

The utility model provides a device for removing harmful substances in a confined space, which has a simple structure, is convenient to use, and has a good effect of removing harmful substances.

A device for removing harmful substances in a confined space, comprising: a chassis; an air duct running through the interior of the chassis, the two ports of the air duct are respectively an air inlet and an air outlet; and a flow drive device sequentially arranged in the air duct and adsorption removal device.

The device of the utility model is installed in a closed space when used, and the flow drive device starts to work before or when the closed space is opened, and the gas in the closed space is forcibly discharged and adsorbed into the adsorption removal device.

Preferably, the flow drive device is provided with a power drive switch driven by a magnetic signal, an optical signal or an electric signal. The opening and closing of the power drive switch is controlled by a magnetic signal, an optical signal or an electric signal, thereby controlling the working state of the flow drive device.

Furthermore, when the power-driven switch is driven by a magnetic signal, a spring is arranged on the wire of the power-driven switch, and a magnet is arranged in the corresponding closed space; when the power-driven switch is driven by an optical signal, a photosensitive sensor is arranged on the wire of the power-driven switch Resistor; when the power drive switch is driven by an electric signal, a power switch is provided in the corresponding enclosed space and connected to the power drive switch.

When the magnetic signal is driven, through the relative displacement generated by the flow driving device in the confined space, the flow driving device realizes the closing and opening of the flow driving device through the driving of the magnetic signal. Further, a magnet is installed in a corresponding enclosed space such as a drawer, a spring is set on the wire of the power drive switch, and the spring is attracted by the magnet, and then the power supply of the flow drive device is turned on to drive the flow drive device. When the closed space is opened, through After the spring is close to the magnet, it is attracted by the magnet, forming an open circuit, and drives the rotation of the flow drive device to realize the air circulation effect in the confined space.

Optical signal driving can be achieved by setting a corresponding photoresistor on the switch wire of the flow drive device. When the airtight space is opened, the light shines on the photoresistor, so that the electron-hole pairs in the photoresistor are excited to participate in conduction and drive the flow. operation of the drive.

For current signal driving, a corresponding switch is set in the confined space, and the switch is connected with the switch wire of the flow drive device to realize the function of conducting the wire of the flow drive device when the confined space is opened; Conductor function for interrupting flow drives.

The flow driving device is used to start the work before or when the closed space is opened, and force the harmful gas into the adsorption and removal device. Therefore, the flow driving device is air conveying equipment. As a preference, the flow driving device is a fan , vacuum pump, blower or compressor. Flow drive devices include but are not limited to these types, and other devices that can achieve the same function as fans are included in the protection scope of the present invention.

The flow driving device can be arranged upstream of the adsorption removal device along the air flow direction, or can be arranged downstream of the adsorption removal device along the air flow direction. In the present utility model, preferably, the flow driving device is arranged on the adsorption removal device Downstream along the air flow direction, that is, the flow driving device is installed in the air duct near the air outlet.

For the convenience of installation and use, preferably, the flow drive device is configured with a disposable battery or a rechargeable battery as a power supply. Of course, other external power sources such as alternating current can also be connected as the power supply.

The adsorption and removal device is used to adsorb harmful substances in the confined space. As a preference, the adsorption and removal device includes:

Adsorption/absorbents and porous materials arranged sequentially in the air duct along the direction from the air inlet to the air outlet;

And a fixed support net for fixing the porous material and the adsorbent/absorbent and separating the porous material and the adsorbent/absorbent.

Further preferably, the adsorption/absorbent is activated carbon, alkali-treated or acid-treated activated carbon, inorganic solid oxide or a mixture of activated carbon and inorganic solid oxide. The adsorption/absorbent refers to adsorbent or absorber.

Since porous materials and adsorption/absorbents have relatively small volumes and irregular shapes, the utility model uses fixed support nets to fix the position; due to long-term use, harmful substances after air intake are adsorbed on the adsorption or In the absorbent, it affects the effect of use, so it needs to be replaced regularly to ensure that the use effect remains in the best state. For different environments, it is necessary to use the best adsorbent for the environment. In this utility model, a fixed support net is used. The fixed porous material and adsorption/absorbent can be manually replaced at any time by adsorption or absorbent, that is, only one side of the fixed support net can be removed to realize the replacement, making the harmful substance removal device of the present utility model suitable for the current use environment.

Further preferably, the fixed support net is barbed wire. Since there are some holes on the wire mesh, the fixing of the porous material and the adsorption or absorbent through the wire mesh will not have any influence on the air intake state of the utility model when in use.

Preferably, the air duct runs through the case along the length direction of the case, that is, the two sides of the case at both ends in the length direction are opened as air inlets and air outlets.

The cabinet can adopt a conventional box structure, and for convenience of processing and practicality, a box with a cubic structure is preferred.

Compared with the prior art, the utility model has the following beneficial effects:

Aiming at the problem that the existing method for removing harmful substances in a confined space (i.e. activated carbon package adsorption method) cannot flow in the confined space due to the poor effect of adsorption or absorbent on harmful substances, the utility model aims to make the adsorption Or improve the adsorption capacity of the absorbent as much as possible, adopt the fan control system to realize the forced convection of the air in the confined space, to improve the adsorption efficiency of activated carbon, and reduce the resistance of the forced convection air under the premise of ensuring the adsorption or removal capacity of the harmful substances of the absorbent, the present invention Increase the area of the air inlet to make the adsorption or absorbent in the device fully contact with the air. In order to realize the automatic control of the purifier and ensure safety, the utility model operates when the closed space is opened. In order to realize intelligent control, the utility model adopts The method of displacement control, when a closed space such as a drawer is opened, the relative position of the wire on the purifier and the magnet on the drawer will change, and the flow drive device will automatically stop after a certain period of time.

According to the device of the present invention, after the harmful gas in the confined space is treated accordingly, the actual performance of the adsorption and removal devices for harmful substances such as adsorption or absorbent used in the device can be tested accordingly, so that the device of the present invention Realize multi-purpose.

Description of drawings

Fig. 1 is a perspective view of the harmful substance removal device of the present invention;

Fig. 2 is the schematic diagram of Fig. 1 after removing the barbed wire;

Fig. 3 is a schematic structural view of Fig. 1 in the process of absorbing activated carbon in the drawer;

Fig. 4 is a structural schematic diagram of the fan not starting when the drawer is closed;

Fig. 5 is a structural schematic diagram of the working state of the fan when the drawer is opened.

The reference signs shown in the figure are as follows:

1-Flow drive device 2-Porous material 3-Adsorption/Absorbent

4-fixed support net 5-magnet 6-spring

7-chassis 8-power supply 71-rack

72 - Box board.

Detailed ways

As shown in Figures 1 and 2, a device for removing harmful substances in a confined space includes a chassis 7 and an air duct running through the interior of the chassis. Device 1 and the adsorption and removal device, the flow drive device can be installed at the air inlet in the air duct, and can also be installed at the air outlet in the air duct, and the adsorption and removal device is installed in a section of the air duct near the air inlet.

The flow driving device is preferably a fan. The fan can be arranged upstream of the adsorption and removal device along the air flow direction, or can be arranged downstream of the adsorption and removal device along the air flow direction. In this embodiment, the fan is arranged on the downstream of the adsorption and removal device along the air flow direction. That is, it is installed in the air duct near the air outlet. When the fan starts, the air in the confined space is sucked in by the air inlet on the side of the adsorption removal device, flows through the adsorption removal device, the harmful substances in the air are absorbed by the adsorption removal device, and the purified air is discharged from the air outlet on the side of the fan.

The flow driving device can also use equipment such as vacuum pumps, blowers or compressors, and other equipment with flow driving functions.

The chassis 7 includes a frame 71 and a box body plate 72. The frame is a support of a cubic structure. The two sides of the two ends in the length direction of the frame are opened as an air inlet and an air outlet. Both are closed by box panels.

More specifically: that is, box panels are arranged on four sides (upper, lower, front and rear) of the frame, and the left and right sides are respectively used as air inlets and air outlets.

The inside of the chassis is a cavity (cavity formed by the box body plate), and there is an air inlet on the right side of the cavity, and an air outlet on the left side of the cavity; through the space between the air inlet and the air outlet Form an air duct that runs through from right to left. When the fan is started, the inhaled air flows from right to left in the air duct; the fan and the adsorption removal device are arranged in sequence from left to right in the air duct (the left and right here are as follows: The directions in Figures 1 and 2 shall prevail).

In this embodiment, the flow driving device is preferably a blower fan, and what the blower fan adopts is a general-purpose blower fan that is easy to purchase on the market; the adsorption removal device includes a porous material 2 and an adsorption/absorbent 3, and the porous material 2 and the adsorption/absorbent 3 automatically Fans are arranged in sequence from the air inlet (i.e., arranged in the order from left to right in Figures 1 and 2), and fixed after being clamped by the fixed support net 4. In this embodiment, the fixed support net is preferably barbed wire; the adsorption/absorbent 3 It is clamped by the barbed wire on the front and back sides, and the porous material 2 is also clamped by the barbed wire on the front and back sides (a total of three barbed wires, and the two spaces separated by the three barbed wires are respectively porous material 2 and adsorption/absorbent 3); Adsorption /Absorbent 3 includes activated carbon, alkali-treated or acid-treated activated carbon, inorganic solid oxide or a mixture of activated carbon and inorganic solid oxide, such as coconut shell activated carbon used in this embodiment.

For the convenience of controlling the operation of the utility model device, the blower fan is equipped with a power supply 8, and the power supply can adopt a disposable battery or a rechargeable battery or be directly connected to an external power supply such as alternating current, and is provided with a power supply drive switch, which can be controlled by a magnetic signal, Driven by electrical or optical signals.

There are several different ways of driving this power-driven switch as follows:

(1) Magnetic signal drive

As shown in Figure 5, a magnet 5 is installed in a corresponding enclosed space 100 such as a drawer, a spring 6 is arranged on the wire of the power drive switch, the spring 6 is attracted by the magnet 5, and then the power supply 8 is turned on to drive the fan, and the enclosed space 100 is opened. When the spring is close to the magnet, it is attracted by the magnet to form an open circuit and drive the rotation of the fan to realize the air circulation effect in the enclosed space 100, as shown in Figure 3 and Figure 4 or Figure 5 when the enclosed space 100 is used , for this pattern.

(2) Optical signal drive

The optical signal signal can be provided by setting a corresponding photoresistor on the wire of the fan. When the airtight space 100 is opened, the light is irradiated on the photoresistor, so that the electron-hole pairs in the photoresistor are excited to participate in conduction, and drive the operation of the fan. , when the confined space 100 of the mode shown in Fig. 3 is used, it is suitable for this mode, and Fig. 4 or Fig. 5 is not suitable for this mode.

(3) Electric signal drive

The current signal drive is by setting a corresponding switch in the enclosed space 100 and connecting the switch with the wire of the fan power drive switch to realize the function of guiding the wire of the fan when the enclosed space 100 is opened, and when the enclosed space 100 is closed, The function of shutting off the wire of the fan.

In this embodiment, the method of displacement control is adopted. When the drawer is opened, the wires on the device will collide with the magnets on the drawer, and the fan will run. The blower fan also can adopt the time-delay operation mode that automatically stops running after a certain hour such as 10 seconds to 1 hour after the drawer is pulled open.

Because the utility model is suitable for the airtight space in some furniture, and the characteristic of this airtight space is that the space is relatively small, so what the utility model adopts is a simple mode in which the fan cooperates with the porous material and the adsorption or absorbent, and After the porous material and the adsorption or absorbent are clamped through the wire mesh, the volume occupied by the porous material and the adsorption or absorbent can be greatly reduced, and the actual volume of the device of the utility model is greatly reduced, which is suitable for various specifications and volumes. environment.

When in specific use, the cabinet 7 of the present utility model can adopt the specification of length 97mm, width 74mm, height 64mm, and wherein, the specification of fan is that diameter is 60mm, thickness 38mm, and the thickness of porous material can be put or not put according to need; Such a size design can be used in most closed spaces of households, and this shape can minimize the impact on the space capacity of the enclosed space when the utility model is used in the enclosed space.

Shown in Fig. 5 is the schematic diagram of the structure of the harmful substance removal device in the process of absorbing harmful substances in the drawer. 6 Touch the magnet 5 set when the drawer is pulled open, the fan will rotate, and the air inside the drawer 100 will be sucked into the porous material 2 and the adsorption or absorbent 3 held by the wire mesh along the fan, and the air will be absorbed by the porous material 2 And adsorption or absorbent 3 adsorbs the toxic and harmful substances in this part of the air, so that this part of the air is converted into non-toxic and harmless gas; when the drawer is closed, the spring 6 leaves the magnet 5 accordingly, and the fan stops rotating to save power.

The specific implementation steps are as follows:

(1) Design of harmful substance removal device: determine the specifications and dosage of activated carbon, and determine the model of the fan.

According to the space size of the confined space to be used, corresponding fans of different powers and control methods (magnetic signal, optical signal or electrical signal) can be selected, and the corresponding selection can be made according to the confined space used, and the most suitable control method can be selected for the corresponding environment.

(2) Assembling the harmful substance removal device: Assemble the harmful substance removal device separately, and select the most suitable harmful substance removal device according to the different confined spaces used; if the adsorption or absorbent is activated carbon, alkali-treated or acid-treated activated carbon, inorganic solids Oxide or a mixture of activated carbon and inorganic solid oxides, or coconut shell activated carbon (due to the small differences in each group of substances, it may cause relatively large differences in the final air purification results, so it is necessary to optimize the environment for use. The selection of the scheme) makes the harmful substance removal device of the present utility model suitable for the current use environment. In this embodiment, coconut shell activated carbon is used; the chassis is bonded with plexiglass with chloroform, and the power drive switch part needs to be fixed and welded to the circuit board.

(3) Installed inside the drawer (closed space 100 ): determine the specific location and fixing method of the harmful substance removal device and the induction switch, and install them in corresponding locations.

(4) Effect display: study the types and generation methods of pollution sources, test the purification effect, try various solutions and choose the most intuitive one.

(5) Determination of purification effect data: determine the actual gas flow through the purifier and the amount of activated carbon required; design a specific experimental plan (test the whole machine or only test for activated carbon, and determine the flow rate and pollutant production amount of the experiment according to the needs, etc.) for experiments After measuring the purification effect by gas chromatography or spectroscopic analysis, determine the amount of activated carbon required under the actual gas flow conditions.

Finally, it should also be noted that what is listed above is only a specific embodiment of the present invention. Apparently, the utility model is not limited to the above embodiments, and many variations are possible. All deformations that a person skilled in the art can derive or associate directly from the content disclosed in the utility model shall be considered as the protection scope of the utility model.

Claims (9)

1. A device for removing harmful substances in a confined space, characterized in that it comprises: Chassis; An air duct running through the inside of the chassis, the two ports of the air duct are respectively an air inlet and an air outlet; And a flow drive device and an adsorption removal device arranged in sequence in the air duct. 2. The device for removing harmful substances in a confined space according to claim 1, wherein the flow drive device is provided with a power drive switch driven by a magnetic signal, an optical signal or an electric signal. 3. The device for removing harmful substances in a confined space according to claim 2, wherein when the power-driven switch is driven by a magnetic signal, a spring is arranged on the wire of the power-driven switch, and a magnet is set in the corresponding confined space; the power-driven switch When the switch is driven by an optical signal, a photoresistor is arranged on the wire of the power-driven switch; when the power-driven switch is driven by an electric signal, a power switch is arranged in the corresponding closed space and connected to the power-driven switch. 4. The device for removing harmful substances in a confined space according to claim 1, wherein the flow driving device is a fan, a vacuum pump, a blower or a compressor. 5. The device for removing harmful substances in confined spaces according to claim 1, wherein the flow drive device is equipped with a disposable battery or a rechargeable battery as a power supply. 6. The device for removing harmful substances in a confined space according to claim 1, wherein the device for removing harmful substances by adsorption comprises: Adsorption/absorbents and porous materials arranged sequentially in the air duct along the direction from the air inlet to the air outlet; And a fixed support net for fixing the porous material and the adsorbent/absorbent and separating the porous material and the adsorbent/absorbent. 7. The device for removing harmful substances in a confined space according to claim 6, wherein the adsorption/absorbent is activated carbon, alkali-treated or acid-treated activated carbon, inorganic solid oxide, or a mixture of activated carbon and inorganic solid oxide. 8 . The device for removing harmful substances in a confined space according to claim 6 , wherein the fixed support net is barbed wire. 9 . The device for removing harmful substances in a confined space according to claim 1 , wherein the air duct runs through the case along the length direction of the case. 10 .