CN104689648A - Medical smoke absorption machine - Google Patents

Abstract

The invention provides a medical smoke absorption machine, which is composed of a smoke absorption pipe, a pretreatment device, a filter core, a dust absorption fan and a control system. Parameter requirements of a filter material in the filter core of the medical smoke absorption machine and two filter core structures of the medical smoke absorption machine are provided; the effective area S of the filter material in the filter core is greater than or equal to 800cm<2> and smaller than or equal to 10,000cm<2>; and the effective volume V of the filter material is greater than or equal to 2,500cm<3> and smaller than or equal to 12,000cm<3>. The filter material of the filter core conforms to specific parameter design requirements and structures, and the optimal smoke filtering and purifying effects can be obtained under the condition of conforming to the volume requirements of surgical equipment.

Description

A kind of medical smoking machine

Technical field

The invention belongs to medical smoking machine technology.

Background technology

Medical smoking machine belongs to the environmental protection equipment in operating room, for removing the smog in operation.When utilizing laser, electric knife or ultrasonic operation, a large amount of smog can be produced, containing a large amount of activated virom crosomes of harmful chemical, flue dust, oil droplet and tool in these smog, all have great harm to patient and medical worker.In order to reduce these harm, people have invented medical smoking machine and correlation technique, document CN90200112.4, CN91226202.8, CN201020600891.1, CN201120374229.3, CN201020117116.0 have done some to smoking machine entirety and have described, and document CN91226202.8, CN201110459659, CN201120488667.2, CN201220421687.2 are just for the improvement of knife head for surgical.All not to the most important parts of smoking machine in these documents above-mentioned---the technical requirement of filter core provides relevant discussion with improvement.

The basic structure of existing medical smoking machine as shown in Figure 1.In Fig. 1,1 is Smoking pipe, and 2 is pretreatment unit, and 3 is filter core, and 4 is dust absorption fan, and 5 is control system.The smog that Smoking pipe absorbs enters filter core 3 after pretreatment unit 2, and the gas filtered through filter core 3 is extracted out by dust absorption fan 4, and 5 is control system, for controlling the opening of blower fan, stop, air quantity and the detection etc. to gas componant.

Because medical smoking machine is for removing poisonous smog in operation, therefore, following several requirements must be met: can toxic gas and various particulate (good filtration effect) effectively in filter smoke, noise is low, suction is large, volume little (being convenient to be arranged on by operating table).

In medical smoking machine, filter core is core component, directly affects filter effect, simultaneously also extremely important for the noise and reduction volume that reduce smoking machine.

Summary of the invention

The present invention is directed to the deficiency that prior art exists, a kind of medical smoking machine is proposed, provide medical smoking machine filter core technical parameter and two kinds of filter cartridge constructions, can meet and be issued to effect than the toxic gas in the better filter smoke of prior art and various particulate at limited volume.

Technical scheme of the present invention is as follows:

A kind of medical smoking machine, it is made up of Smoking pipe, pretreatment unit, filter core, dust absorption fan and control system.The present invention provides the technical parameter of filter material in medical smoking machine filter core: the effective area 10000cm of filter material ²>=S>=800cm ², effective volume 12000cm ³>=V>=2500cm ³.Obtaining of this parameter is according to following analysis and experiment:

Fig. 2 is filter material schematic diagram in filter core.Gas evenly enters filter core after Smoking pipe and pretreatment unit, if its current density is v, filter material effective admission surface area is S ₁, area of effectively giving vent to anger is S ₂, average effective area

$S=\frac{S_1+S_2}{2}$

Filter material thickness is D, then the flow M=Sv of gas, the volume V=SD of filter material

In order to obtain best filter material parameter, the present invention has done a large amount of tests, and concrete grammar is as follows: use co ₂smog in the smoke simulation surgical procedure that laser or the fresh pigskin of electric knife calcination produce, change the parameter of filter material and filter material kind, the average effective area S of filter material, the volume V of filter material, the thickness D of filter material, aim at smog with the smoking head of Smoking pipe one end to adsorb, observe its noise situation of change to the Scavenging activity of smog peculiar smell and smoking machine, main result is as follows:

In the existing filter material that can obtain in a large number, with active carbon and goods the best thereof.

In the satisfactory situation of noise, with active carbon and goods thereof the filter core as filter material, under different parameters to the Scavenging activity of smog as following table:

According to testing and analyzing further, in order to guarantee effectively to adsorb the smog in operation and make smoking machine noise, volume in the scope of performing the operation permission, in filter core of the present invention, filter material parameter is:

Filter material effective area 10000cm ²>=S>=800cm ²

The effective volume 12000cm of filter material ³>=V>=2500cm ³

In identical filter material volume situation, effective area S is larger, and namely thickness D is less, then resistance is less, and noise is lower.

In order to adapt to different requirements of operation further, filter material parameter of the present invention can be limited in following value further:

The effective area 2000cm of filter material ²>=S>=800cm ²

The effective area 3500cm of filter material ³>=V>=2500cm ³.

According to above parameter, the present invention provides following preferred filter cartridge construction.Described filter core comprises inner core, gas passage and shell; Described gas passage is provided with n equidistant air admission hole, and n inner core is arranged on n air admission hole respectively, and whole inner core shell covers, and forms a filter core; Described shell has total air inlet, gas passage has total exhaust outlet, flue gas enters in housing through total air inlet, filters, collected by gas passage through each inner core, is discharged by flue gas from total exhaust outlet.

Above-mentioned inner core is following two kinds of versions preferably:

Described inner core is two-sided inner core, comprises interior core crab and filter material; Interior core crab is made up of upper and lower two pieces of parallel transverse slats, middle two pieces of parallel relative risers and two blocks, front and back side plate, and two pieces of middle risers are distributed with steam vent or air discharge duct; There is bar shaped exhaust outlet position on lower cross plate between corresponding two exhaustion plates, overlaps with the air admission hole on gas passage; Filter material is active carbon and goods thereof, is close to the outside of middle two pieces of risers, forms two-sided planar symmetrical structure.

Described inner core is tubular core, comprises interior core crab and filter material; The upper plate that interior core crab is installed by pipe and two ends thereof and lower shoe are formed, and upper plate seals, and lower shoe has a circular hole as steam vent, overlaps with the air admission hole on gas passage; Tube wall is distributed with some apertures or little bar-shaped trough; Filter material is active carbon and goods thereof, is close to the outside of pipe.

Adopt above technical scheme, filter material due to filter core meets specific parameter designing requirement, the structure of filter core can meet the increase of filter material effective area, therefore, it is possible to reach under the condition meeting surgical apparatus volume requirement, obtains optimum smoke filtration clean-up effect.

Accompanying drawing explanation

The structure principle chart of the medical smoking machine of Fig. 1;

Fig. 2 is the schematic diagram of filter material in filter core wherein;

Fig. 3 has the filter cartridge construction schematic diagram of two-sided inner core;

Fig. 4 is the pathway structure of Fig. 3;

The profile of the two-sided inner core of Fig. 5;

Fig. 5 A is the A-A profile of Fig. 5;

Fig. 6 has the filter cartridge construction schematic diagram of tubular core;

Fig. 7 is the pathway structure of Fig. 6;

The profile of Fig. 8 tubular core;

Fig. 8 A is the A-A profile of Fig. 8.

Detailed description of the invention

Structure of the present invention is further illustrated below in conjunction with accompanying drawing:

According to the requirement of the aforementioned filter material to medical smoking machine, embodiment gives two kinds of medical smoking machine filter cores.

Embodiment 1: the filter cartridge construction with two-sided inner core

As shown in Figure 3 and Figure 4, filter core is made up of n two-sided inner core 3-1, a gas passage 6 and a shell 7.

Two-sided inner core 3-1 as shown in figs. 5 and 5, is made up of upper cross plate 3-1-4, lower cross plate 3-1-1, two parallel riser 3-1-2, biside plate 3-1-5 and filter material 3-1-3.Upper cross plate 3-1-4 is parallel up and down with lower cross plate 3-1-1, two parallel riser 3-1-2 are contained between upper cross plate 3-1-4 and lower cross plate 3-1-1, riser 3-1-2 is distributed with steam vent or air discharge duct 3-1-6, the position of lower cross plate 3-1-1 between corresponding two parallel risers has a strip gab 3-1-7 as exhaust outlet, filter material 3-1-3 is active carbon and goods thereof, is close to riser 3-1-2 outer wall.Gas, after filter material 3-1-3 filters, is discharged from the strip gab 3-1-7 of base plate 3-1-1.

Gas passage 6 as shown in Figure 3 and Figure 4, the top of gas passage 6 is provided with equidistant strip gab as air admission hole 6-1, similar with the strip gab 3-1-7 on the lower cross plate of two-sided inner core 3-1, communicate, quantity is identical with the quantity n of filter core two-sided inner core 3-1 used, and the bottom of gas passage 6 is provided with total exhaust outlet 6-2.The gas of discharging through the strip gab 3-1-7 of two-sided inner core 3-1 is all discharged from the steam vent 6-2 the base plate of gas passage 6.

N two-sided inner core 3-1 is arranged on the air admission hole 6-1 of gas passage 6 respectively, then covers with shell 7, shell 7 has total air inlet 7-1, just form two-sided filter core.

As n=1, be the filter core only having a two-sided inner core.

Example: with 2 two-sided inner cores and n=2, its total area S=4096cm ², total volume V=4096cm ³the filter core noise formed meets the requirements, and filter effect is fine, effectively can remove the peculiar smell in smog and smog.Embodiment 2: the filter cartridge construction with tubular core

As shown in Figure 6, Figure 7, this filter core is made up of n tubular core 3-2, a gas passage 6 and a shell 7.

Tubular core 3-2 as shown in figs. 8 and 8 a, pipe 3-2-3 installs at two ends base plate 3-2-4 and lower shoe 3-2-1, upper plate seals, lower shoe has a circular hole 3-2-5 as exhaust outlet, the tube wall of pipe 3-2-3 is distributed with some apertures or air discharge duct 3-2-6, filter material 3-2-2 is around the outer wall of pipe 3-2-3.Pipe 3-2-3 available metal net or other material with aperture or little air drain are formed.Filter material is active carbon and goods thereof.Gas is discharged from the exhaust outlet 3-2-5 of lower shoe 3-2-1 after filter material 3-2-2 filters.

Gas passage as shown in Figure 6 and Figure 7.Gas passage 6 top is provided with n manhole, and as air admission hole 6-1, this manhole is similar with tubular core 3-2 lower shoe steam vent 3-2-5, communicate, and quantity is identical, is provided with total exhaust outlet 6-2 bottom gas passage 6.The gas of discharging from the exhaust outlet 3-2-5 of each tubular core 3-2 is discharged from the base bleed hole 6-2 of gas passage 6.

N tubular core 3-2 is arranged on correspondingly on the air admission hole 6-1 on gas passage 6 top, then covers with shell 7, shell 7 has total air inlet 7-1, then form tubulose filter core.

As n=1, be the tubulose filter core only having a tubular core.

Example: with a S=1508cm ², V=9805cm ³the filter core that forms of tubular core, have that noise is low, the life-span be long, remove the effective feature of smog, meet the requirement of medical smoking machine.

Claims (8)

1. a medical smoking machine, it is made up of Smoking pipe, pretreatment unit, filter core, dust absorption fan and control system, it is characterized in that, the effective area 10000cm of filter material in described filter core ²>=S>=800cm ², effective volume 12000cm ³>=V>=2500cm ³.

2. medical smoking machine according to claim 1, is characterized in that, the effective area 2000cm2 >=S >=800cm2 of described filter material, filter material effective area 3500cm3 >=V >=2500cm3.

3. medical smoking machine according to claim 1, is characterized in that, the effective area S=1508cm of filter material in described filter core ², effective volume V=9805cm ³.

4. medical smoking machine according to claim 1, is characterized in that, the effective area S=4096cm of filter material in described filter core ², total volume V=4096cm ³.

5. medical smoking machine according to any one of claim 1-4, is characterized in that, described filter core (3) comprises inner core, gas passage (6) and shell (7); Described gas passage (6) is provided with n equidistant air admission hole, and n inner core is arranged on n air admission hole respectively, and whole inner core shell (7) covers, and forms a filter core; Described shell (7) there is total air inlet (7-1), (6) have total exhaust outlet to gas passage, flue gas enters in housing (7) through total air inlet, filter through each inner core, collected by gas passage (6), from total exhaust outlet (6-2), flue gas is discharged.

6. medical smoking machine according to claim 5, is characterized in that, described inner core is two-sided inner core (3-1), comprises interior core crab and filter material (3-1-3); Interior core crab is made up of upper and lower two pieces of parallel transverse slats (3-1-4,3-1-1), middle two pieces of parallel relative risers (3-1-2) and two pieces, front and back side plate (3-1-5), and two pieces of middle risers (3-1-2) are distributed with steam vent or air discharge duct (3-1-6); There is bar shaped exhaust outlet (3-1-7) position between upper corresponding two exhaustion plates of lower cross plate (3-1-1), overlaps with the air admission hole (6-1) on gas passage (6); Filter material (3-1-3) is active carbon and goods thereof, is close to the outside of middle two pieces of risers (3-1-2), forms two-sided planar symmetrical structure.

7. medical smoking machine according to claim 5, is characterized in that, described inner core is tubular core (3-2), comprises interior core crab and filter material; The upper plate (3-2-4) that interior core crab is installed by pipe (3-2-3) and two ends thereof is formed with lower shoe (3-2-1), upper plate seals, lower shoe has a circular hole (3-2-5) as steam vent, overlaps with the air admission hole (6-1) on gas passage (6); Pipe (3-2-3) tube wall is distributed with some apertures or little bar-shaped trough (3-2-6); Filter material (3-2-2) is active carbon and goods thereof, is close to the outside of pipe (3-2-3).

8. the medical smoking machine according to claim 6 or 7, is characterized in that, described riser (3-1-2) is made with pipe (3-2-3) available metal net or other material with through hole or little air drain.