阅读说明：本技术 一种具有废气吸收净化功能的化学检测仪器及其检测方法 (Chemical detection instrument with waste gas absorption and purification functions and detection method thereof ) 是由 李亮 高剑峰 于 2020-11-26 设计创作，主要内容包括：本发明公开了一种具有废气吸收净化功能的化学检测仪器,包括化学检测仪器本体,所述化学检测仪器本体右侧背面的底部栓接有固定箱,所述固定箱的顶部设置有吸收机构,所述固定箱顶部正面的右侧栓接有控制器,所述固定箱内腔的顶部滑动连接有配合吸收机构使用的水箱,所述水箱两侧顶部的四周均开设有透气孔,所述固定箱内腔底部的右侧设置有净化机构。本发明通过第二气泵、吸气管、分流管、第二吸头和通气管的配合,便于使用者利用第二气泵将废气快速吸收入水箱内,避免废气直接扩散至空气中,对使用者的身体造成伤害,同时水箱内的净水对废气中的灰尘进行吸附沉降,从而对废气进行初步净化。(The invention discloses a chemical detection instrument with waste gas absorption and purification functions, which comprises a chemical detection instrument body, wherein a fixed box is bolted at the bottom of the back surface of the right side of the chemical detection instrument body, an absorption mechanism is arranged at the top of the fixed box, a controller is bolted at the right side of the front surface of the top of the fixed box, a water tank matched with the absorption mechanism is connected to the top of the inner cavity of the fixed box in a sliding manner, air holes are formed in the peripheries of the tops of two sides of the water tank, and a purification mechanism is arranged at the right side of the bottom of the inner cavity of the fixed. The waste gas purification device has the advantages that through the matching of the second air pump, the air suction pipe, the flow dividing pipe, the second suction head and the air pipe, a user can conveniently and quickly suck the waste gas into the water tank by using the second air pump, the waste gas is prevented from being directly diffused into the air to cause damage to the body of the user, and meanwhile, the purified water in the water tank adsorbs and settles dust in the waste gas, so that the waste gas is preliminarily purified.)

1. A chemical detection instrument with waste gas absorption and purification functions comprises a chemical detection instrument body (1), and is characterized in that: the chemical detection instrument comprises a chemical detection instrument body (1), wherein a fixed box (2) is bolted at the bottom of the back of the right side of the chemical detection instrument body (1), an absorption mechanism (3) is arranged at the top of the fixed box (2), a controller is bolted at the front right side of the top of the fixed box (2), a water tank (4) matched with the absorption mechanism (3) for use is connected to the top of the inner cavity of the fixed box (2) in a sliding manner, air holes are formed in the periphery of the tops of two sides of the water tank (4), a water feeding pipe is communicated with the front top of the right side of the water tank (4), a purification mechanism (18) is arranged at the right side of the bottom of the inner cavity of the fixed box (2), a first air pump (14) is bolted at the left side of the bottom of the inner cavity of the fixed box (2), a fixed pipe (15) is communicated with the fixed pipe, an air outlet of the first air pump (14) is communicated with an air outlet pipe (17), and one end, far away from the first air pump (14), of the air outlet pipe (17) penetrates through the fixed box (2) and extends downwards.

2. A chemical detecting instrument with an exhaust gas absorbing and purifying function according to claim 1, wherein: the absorption mechanism (3) comprises a second air pump (31), an air suction pipe (32), a shunt pipe (33), a second suction head (34) and an air pipe (35), the left side of the top of the fixed box (2) is connected with the second air pump (31) in a bolted mode, the air inlet of the second air pump (31) is communicated with the air suction pipe (32), one end, far away from the second air pump (31), of the air suction pipe (32) is communicated with the shunt pipe (33), the front side of the shunt pipe (33) is sequentially communicated with the second suction head (34) from left to right, the bottom of the shunt pipe (33) is connected with the top of the chemical detection instrument body (1) in a bolted mode, the air outlet of the second air pump (31) is communicated with the air pipe (35), one end, far away from the second air pump (31), of the air pipe (35) sequentially penetrates through the fixed box (2) and the water tank, the bottom of the inner cavity of the water tank (4) is filled with purified water.

3. A chemical detecting instrument with an exhaust gas absorbing and purifying function according to claim 1, wherein: purification mechanism (18) include HEPA high efficiency filter (181), activated carbon filter screen (182) and deodorization filter screen (183), first draw-in groove has all been seted up from a left side to the right side in the bottom of fixed case (2) inner chamber in proper order, and the inner chamber of first draw-in groove has HEPA high efficiency filter (181), activated carbon filter screen (182) and deodorization filter screen (183) to the right side in proper order the joint from a left side, HEPA high efficiency filter (181) are located the right side of first suction head (16).

4. A chemical detecting instrument with an exhaust gas absorbing and purifying function according to claim 1, wherein: the both sides of fixed box (2) inner chamber are from last to having bolted first backup pad (10), second backup pad (11) and third backup pad (12) down in proper order, the right side at first backup pad (10) and third backup pad (12) top and the left side at second backup pad (11) top all inlay and be equipped with filter (13), the second draw-in groove that cooperation HEPA high efficiency filter (181), active carbon filter screen (182) and deodorization filter screen (183) used has all been seted up in proper order from a left side to the right side in third backup pad (12) bottom.

5. A chemical detecting instrument with an exhaust gas absorbing and purifying function according to claim 1, wherein: the sliding grooves are formed in the two sides of the top of the inner cavity of the fixed box (2), and sliding blocks matched with the sliding grooves are bolted to the two sides of the top of the water tank (4).

6. The chemical detecting instrument with exhaust gas absorbing and purifying function according to claim 4, wherein: the utility model discloses a spacing water tank, including first backup pad (10), spacing seat (8) are all bolted all around at first backup pad (10) top, the both sides of spacing seat (8) inner chamber bottom are all bolted and are had spring (9), the top of spring (9) is through first mounting panel bolt limited post (7), the bottom bolt of spacing seat (8) and through second mounting panel and water tank (4) is run through at the top of limited post (7).

7. A chemical detecting instrument with an exhaust gas absorbing and purifying function according to claim 1, wherein: arc-shaped guide plates (6) are bolted to two sides of the top of the inner cavity of the fixed box (2), and the water tank (4) is located on one side of the arc-shaped guide plates (6) in the opposite direction.

8. A chemical detecting instrument with an exhaust gas absorbing and purifying function according to claim 1, wherein: dust covers (5) are bolted to the tops of two sides of the water tank (4), and the dust covers (5) are located on the outer sides of the air holes.

9. The chemical detecting instrument with exhaust gas absorbing and purifying function according to claim 4, wherein: the right side of the top of the second supporting plate (11) and the left side of the top of the third supporting plate (12) are both bolted with flow guide blocks, and the front side of the left side of the inner cavity of the water tank (4) is bolted with a water level sensor (19).

10. A detection method of a chemical detection instrument with an exhaust gas absorption and purification function is characterized by comprising the following steps:

s1, when in use, waste gas is generated when the chemical detection instrument body (1) detects an experimental article, at the moment, a user turns on a second air pump (31) through a controller, at the moment, the second air pump (31) provides suction for a second suction head (34), at the moment, the second suction head (34) absorbs the waste gas around the chemical detection instrument body (1), then the second suction head (34) conveys the waste gas to an air suction pipe (32) through a shunt pipe (33) so as to convey the waste gas into a vent pipe (35) through the air suction pipe (32), at the last, the vent pipe (35) conveys the waste gas into a water tank (4), at the moment, clean water in the water tank (4) adsorbs and settles dust in the waste gas, so as to primarily purify the waste gas, then the gas rises and is dissipated out of the water tank (4) through air holes, at the same time, a dust cover (5) further filters the waste gas, at the moment, at the moment, the first air pump (14) pulls the waste gas at the top of the fixed box (2) through the first suction head (16);

s2, the waste gas falls to the surface of a filter plate (13) at the top of a first support plate (10) through an arc guide plate (6) under the action of traction force, at the moment, the filter plate (13) further filters and purifies the waste gas, meanwhile, the filter plates (13) on the surfaces of a second support plate (11) and a third support plate (12) filter the waste gas for multiple times, impurities and harmful substances in the waste gas are further purified by utilizing three groups of filter plates (13), meanwhile, the residence time of the waste gas is prolonged by the first support plate (10), the second support plate (11) and the third support plate (12), so that the waste gas is purified more completely, at the moment, the waste gas continues to move under the action of the traction force until the waste gas descends to the right side of a deodorization filter screen (183), at the moment, a HEPA high-efficiency filter (181), an active carbon filter screen (182) and a deodorization filter screen (183) finally filter and purify suspended particles, so that the waste gas reaches the dischargeable standard, and finally the first air pump (14) discharges the completely purified waste gas through the gas outlet pipe (17).

Technical Field

The invention relates to the technical field of experimental instruments, in particular to a chemical detection instrument with a waste gas absorption and purification function and a detection method thereof.

Background

Experimental apparatus, the instrument that uses when the concrete experiment of natural science, it is mainly physics, chemistry, biology uses, modern commonly used experimental apparatus has the test tube, the beaker, the evaporating dish, the crucible, the alcohol burner, buchner funnel, the gas washing bottle, the drying tube, the tray balance, the graduated flask, the volumetric flask, burette, the measuring apparatus device etc. the instrument that uses among the chemistry experiment is called chemical instrumentation, can measure or react the material, mainly be divided into measuring apparatus and reaction apparatus, make up the constitution device with the instrument with specific mode, realize the experiment purpose.

Chemical detection instrument is when detecting some special materials, can give out a lot of waste gases, contains a lot of harmful substances to the human body in the waste gas, but traditional chemical detection instrument does not have the function of absorbing the purification to waste gas, can't purify waste gas to emission standard, and the experimenter directly inhales unpurified waste gas, can bring irreversible injury to experimenter's health.

Therefore, it is desirable to design a chemical detecting instrument with exhaust absorption and purification functions and a detecting method thereof to solve the above problems.

Disclosure of Invention

The invention aims to provide a chemical detection instrument with an exhaust gas absorption and purification function and a detection method thereof, so as to solve the problem that the traditional chemical detection instrument provided in the background art does not have the exhaust gas absorption and purification function.

In order to achieve the purpose, the invention provides the following technical scheme: a chemical detection instrument with waste gas absorption and purification functions comprises a chemical detection instrument body, the bottom of the back surface of the right side of the chemical detection instrument body is bolted with a fixed box, the top of the fixed box is provided with an absorption mechanism, the right side of the front surface of the top of the fixed box is bolted with a controller, the top of the inner cavity of the fixed box is connected with a water tank matched with the absorption mechanism in a sliding way, the periphery of the top parts of the two sides of the water tank is provided with air holes, the top part of the right front side of the water tank is communicated with a water adding pipe, the right side of the bottom of the inner cavity of the fixed box is provided with a purification mechanism, the left side of the bottom of the inner cavity of the fixed box is connected with a first air pump in a bolt way, the air inlet of the first air pump is communicated with a fixed pipe through a pipeline, the right side of the fixed pipe is sequentially communicated with a first suction head from front to back, the air outlet of the first air pump is communicated with an air outlet pipe, and one end, far away from the first air pump, of the air outlet pipe penetrates through the fixing box and extends downwards.

Preferably, absorption mechanism includes second air pump, breathing pipe, shunt tubes, second suction head and breather pipe, the left side bolt joint at fixed roof portion has the second air pump, the air inlet intercommunication of second air pump has the breathing pipe, the one end intercommunication that the second air pump was kept away from to the breathing pipe has the shunt tubes, the front of shunt tubes all communicates in proper order from a left side to the right side has the second suction head, the bottom of shunt tubes and the top bolt of chemical detection instrument body, the gas outlet intercommunication of second air pump has the breather pipe, the one end that the second air pump was kept away from to the breather pipe runs through fixed case and water tank in proper order and extends to the bottom of water tank inner chamber, the bottom of water tank inner chamber is filled with the water purification.

Preferably, purification mechanism includes HEPA high efficiency filter, active carbon filter screen and deodorization filter screen, first draw-in groove has all been seted up from a left side to the right side in proper order to the bottom of fixed incasement chamber, and the inner chamber of first draw-in groove has HEPA high efficiency filter, active carbon filter screen and deodorization filter screen from a left side to the right side in proper order the joint, HEPA high efficiency filter is located the right side of first suction head.

Preferably, the both sides of fixed box inner chamber have been from last to having bolted connection first backup pad, second backup pad and third backup pad down in proper order, the right side at first backup pad and third backup pad top and the left side at second backup pad top all inlay and be equipped with the filter, the second draw-in groove that cooperation HEPA high efficiency filter, active carbon filter screen and deodorization filter screen used has all been seted up in proper order from a left side to the right side in third backup pad bottom.

Preferably, the sliding grooves are formed in the two sides of the top of the inner cavity of the fixed box, and the sliding blocks matched with the sliding grooves for use are bolted to the two sides of the top of the water box.

Preferably, the periphery of the top of the first supporting plate is bolted with a limiting seat, two sides of the bottom of an inner cavity of the limiting seat are bolted with springs, the top of each spring is bolted with a limiting column through a first mounting plate, and the top of each limiting column penetrates through the limiting seat and is bolted with the bottom of the water tank through a second mounting plate.

Preferably, arc-shaped guide plates are bolted to two sides of the top of the inner cavity of the fixed box, and the water tank is located on one opposite side of the arc-shaped guide plates.

Preferably, the tops of two sides of the water tank are bolted with dust covers, and the dust covers are located on the outer sides of the air holes.

Preferably, the right side of the top of the second supporting plate and the left side of the top of the third supporting plate are both bolted with flow guide blocks, and the front side of the left side of the inner cavity of the water tank is bolted with a water level sensor.

A detection method of a chemical detection instrument with an exhaust gas absorption and purification function comprises the following steps:

s1, when the chemical detection instrument body is used, waste gas is generated when a test object is detected, a user starts a second air pump through a controller, the second air pump provides suction for a second suction head, the waste gas around the chemical detection instrument body is absorbed by the second suction head, the waste gas is conveyed to an air suction pipe through a shunt pipe by the second suction head, the waste gas is conveyed to an air suction pipe through the air suction pipe, the waste gas is conveyed to a water tank by the air suction pipe, the dust in the waste gas is adsorbed and settled by purified water in the water tank, the waste gas is primarily purified, the gas rises and is dissipated out of the water tank through the air holes, meanwhile, the waste gas is further filtered by a dust cover, the user starts a first air pump through the controller, and the waste gas at the top of the fixed tank is pulled by the first air pump through the first suction head;

s2, the waste gas falls down to the surface of the filter plate on the top of the first supporting plate through the arc-shaped guide plate under the action of traction force, at the moment, the filter plate further filters and purifies the waste gas, meanwhile, the filter plates on the surfaces of the second support plate and the third support plate filter the waste gas for a plurality of times, and the impurities and harmful substances in the waste gas are further purified by utilizing the three groups of filter plates, meanwhile, the first support plate, the second support plate and the third support plate prolong the stay time of the waste gas, so that the waste gas is more completely purified, the waste gas continues to move under the action of traction force until the waste gas descends to the right side of the deodorization filter screen, and the HEPA high-efficiency filter, the activated carbon filter screen and the deodorization filter screen finally filter and purify suspended particles and harmful substances in the waste gas, therefore, the waste gas reaches the dischargeable standard, and finally the first air pump discharges the completely purified waste gas through the air outlet pipe.

Compared with the prior art, the invention has the beneficial effects that:

1. the chemical detection instrument with the waste gas absorption and purification functions and the detection method thereof have the advantages that through the matching of the second air pump, the air suction pipe, the shunt pipe, the second suction head and the air pipe, a user can conveniently and quickly absorb waste gas into the water tank by using the second air pump, the waste gas is prevented from being directly diffused into the air and causing damage to the body of the user, meanwhile, the dust in the waste gas is adsorbed and settled by using purified water in the water tank, so that the waste gas is preliminarily purified, through the matching of the first support plate, the second support plate, the third support plate and the filter plates, the user can conveniently and further purify impurities and harmful substances in the waste gas by using the three filter plates, meanwhile, the stay time of the waste gas is prolonged by using the first support plate, the second support plate and the third support plate, so that the waste gas is purified more completely, through the matching of the, the person of facilitating the use carries out final filtration and purification to suspended particles and harmful substance in the waste gas to but make waste gas reach emission standard, further improved the absorption purifying effect of chemical detection instrument body to waste gas, solved traditional chemical detection instrument and not had the problem of absorbing purification performance to waste gas.

2. This chemical detection instrument with waste gas absorbs purification performance and detection method passes through the cooperation of slider and spout, the person of facilitating the use slides spacingly to the water tank, the stability of water tank has been improved, through spacing seat, the cooperation of spring and spacing post, the person of facilitating the use utilizes the elasticity resilience of spring, thereby it is further spacing to carry out the water tank to drive spacing post, the stability of water tank has been improved, cooperation through the arc guide plate, the person of facilitating the use carries out the water conservancy diversion to waste gas, make waste gas can pass through the filter at first backup pad top fast, avoid waste gas to stop at the top of fixed case, influence the purifying effect of waste gas.

3. This chemical detection instrument with waste gas absorbs purification performance and detection method passes through the cooperation of dust cover, the person of facilitating the use further filters the waste gas after water drenches, cooperation through the water conservancy diversion piece, the person of facilitating the use carries out the water conservancy diversion to waste gas, the speed that waste gas flows has been accelerated, the work efficiency of chemical detection instrument body has been improved, cooperation through level sensor, the person of facilitating the use monitors the water level condition in the water tank, prevent that the user from when filling the water purification to the water tank, the water purification overflows via the bleeder vent.

Drawings

FIG. 1 is a front view of a chemical detecting apparatus with exhaust gas absorption and purification functions and a detecting method thereof according to the present invention;

FIG. 2 is a structural cross-sectional view of the holding box of the present invention;

FIG. 3 is a structural sectional view of the water tank of the present invention;

FIG. 4 is a perspective view showing the construction of a first air pump, a fixing tube and a first suction head according to the present invention;

FIG. 5 is a front view of the construction of a second support plate and filter plate of the present invention;

fig. 6 is a cross-sectional view of a shunt tube according to the present invention;

FIG. 7 is a front view of the purification mechanism of the present invention;

FIG. 8 is a cross-sectional view of the spacing block of the present invention.

In the figure: 1. a chemical detection instrument body; 2. a fixed box; 3. an absorbing mechanism; 31. a second air pump; 32. an air intake duct; 33. a shunt tube; 34. a second suction head; 35. a breather pipe; 4. A water tank; 5. a dust cover; 6. an arc-shaped guide plate; 7. a limiting column; 8. a limiting seat; 9. a spring; 10. a first support plate; 11. a second support plate; 12. a third support plate; 13. a filter plate; 14. a first air pump; 15. a fixed tube; 16. a first suction head; 17. an air outlet pipe; 18. A purification mechanism; 181. a HEPA high efficiency filter; 182. an active carbon filter screen; 183. deodorizing and filtering the filter screen; 19. a water level sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1-8, an embodiment of the present invention:

a chemical detection instrument with waste gas absorption and purification functions comprises a chemical detection instrument body 1, a fixed box 2 is bolted at the bottom of the back surface of the right side of the chemical detection instrument body 1, an absorption mechanism 3 is arranged at the top of the fixed box 2, a controller is bolted at the right side of the front of the top of the fixed box 2, a water tank 4 matched with the absorption mechanism 3 for use is slidably connected to the top of the inner cavity of the fixed box 2, air holes are formed in the peripheries of the tops of the two sides of the water tank 4, a water feeding pipe is communicated with the top of the front of the right side of the water tank 4, a purification mechanism 18 is arranged at the right side of the bottom of the inner cavity of the fixed box 2, a first air pump 14 is bolted at the left side of the bottom of the inner cavity of the fixed box 2, an air inlet of the first air pump 14 is communicated with a fixed pipe 15 through a pipeline, the right side of the fixed pipe 15 is sequentially communicated with a first, through the cooperation of the second air pump 31, the air suction pipe 32, the shunt pipe 33, the second suction head 34 and the air pipe 35, the user can utilize the second air pump 31 to quickly suck the waste gas into the water tank 4, thereby avoiding the waste gas from directly diffusing into the air and causing damage to the body of the user, meanwhile, the purified water in the water tank 4 can adsorb and settle the dust in the waste gas, thereby preliminarily purifying the waste gas, through the cooperation of the first support plate 10, the second support plate 11, the third support plate 12 and the filter plate 13, the user can utilize the three groups of filter plates 13 to further purify the impurities and harmful substances in the waste gas, meanwhile, the first support plate 10, the second support plate 11 and the third support plate 12 prolong the retention time of the waste gas, so that the waste gas can be purified more completely, through the cooperation of the HEPA high-efficiency filter 181, the activated carbon filter screen 182 and the deodorization filter screen 183, the user can finally filter and purify the suspended particles and the harmful, thereby make waste gas reach dischargeable standard, further improved the absorption purifying effect of chemical detecting instrument body 1 to waste gas, solved traditional chemical detecting instrument and not had the problem of absorbing purification performance to waste gas.

The absorption mechanism 3 comprises a second air pump 31, an air suction pipe 32, a shunt pipe 33, a second suction head 34 and an air pipe 35, the left side of the top of the fixed box 2 is bolted with the second air pump 31, an air inlet of the second air pump 31 is communicated with the air suction pipe 32, one end of the air suction pipe 32, which is far away from the second air pump 31, is communicated with the shunt pipe 33, the front sides of the shunt pipes 33 are sequentially communicated with the second suction head 34 from left to right, the bottom of the shunt pipe 33 is bolted with the top of the chemical detection instrument body 1, an air outlet of the second air pump 31 is communicated with the air pipe 35, one end of the air pipe 35, which is far away from the second air pump 31, sequentially penetrates through the fixed box 2 and the water tank 4 and extends to the bottom of an inner cavity of the water tank 4, the bottom of the inner cavity of the water tank 4 is filled with purified water, and a user can conveniently and, avoid waste gas direct diffusion to the air in, cause the injury to user's health, the water purification in the water tank 4 adsorbs the dust in to waste gas simultaneously and subsides to carry out preliminary purification to waste gas.

Purification mechanism 18 includes HEPA high efficiency filter 181, activated carbon filter screen 182 and deodorization filter screen 183, first draw-in groove has all been seted up in proper order from a left side to the right side in the bottom of 2 inner chambers of fixed box, and the inner chamber of first draw-in groove has HEPA high efficiency filter 181 from a left side to the right side in proper order the joint, activated carbon filter screen 182 and deodorization filter screen 183, HEPA high efficiency filter 181 is located first suction head 16's right side, through HEPA high efficiency filter 181, activated carbon filter screen 182 and deodorization filter screen 183's cooperation, convenient to use person carries out final filtration and purification to suspended particles and harmful substance in the waste gas, thereby make waste gas reach dischargeable standard, the absorption purifying effect of chemical detection instrument body 1 to waste gas has further been improved.

The both sides of 2 inner chambers of fixed box from last to having bolted connection first backup pad 10 down in proper order, second backup pad 11 and third backup pad 12, the right side at first backup pad 10 and third backup pad 12 top and the left side at second backup pad 11 top all inlay and be equipped with filter 13, cooperation HEPA high efficiency filter 181 has all been seted up in proper order from a left side to the right side in third backup pad 12 bottom, the second draw-in groove that active carbon filter 182 and deodorization filter 183 used, through first backup pad 10, second backup pad 11, the cooperation of third backup pad 12 and filter 13, convenient to use person utilizes three filter 13 of group to go on further purifying to impurity and harmful substance in the waste gas, simultaneously first backup pad 10, second backup pad 11 and third backup pad 12 have prolonged the time that the waste gas stayed, make waste gas purification more complete.

The spout has all been seted up to the both sides at 2 inner chamber tops of fixed box, and the both sides at 4 tops of water tank all are bolted connection to have the slider that the cooperation spout used, and through the cooperation of slider and spout, convenient to use person slides spacingly to water tank 4, has improved the stability of water tank 4.

All bolted connections all around at first backup pad 10 top have spacing seat 8, the equal bolted connection in both sides of spacing seat 8 inner chamber bottom has spring 9, spring 9's top is through first mounting panel bolted connection spacing post 7, spacing seat 8 is run through and the bottom bolted connection through second mounting panel and water tank 4 in the top of spacing post 7, through spacing seat 8, spring 9 and spacing post 7's cooperation, convenient to use person utilizes the elasticity of spring 9 to kick-back, thereby it is spacing to drive spacing post 7 further to carry out water tank 4, the stability of water tank 4 has been improved.

The equal bolt in both sides at 2 inner chamber tops of fixed box has arc guide plate 6, and water tank 4 is located 6 one sides in opposite directions of arc guide plate, and through arc guide plate 6's cooperation, the person of facilitating the use carries out the water conservancy diversion to waste gas, makes waste gas can stop at the top of fixed box 2 at filter 13 at first backup pad 10 top fast, avoids waste gas, influences the purifying effect of waste gas.

The dust cover 5 is bolted to the top of 4 both sides of water tank, and the dust cover 5 is located the outside of bleeder vent, and through the cooperation of dust cover 5, the person of facilitating the use further filters the waste gas after drenching water.

The right side at 11 tops of second backup pad and the equal bolt in left side at 12 tops of third backup pad have a water conservancy diversion piece, the left front bolt in 4 inner chambers of water tank has level sensor 19, cooperation through the water conservancy diversion piece, the person of facilitating the use carries out the water conservancy diversion to waste gas, waste gas flow's speed has been accelerated, the work efficiency of chemical instrumentation body 1 has been improved, cooperation through level sensor 19, the person of facilitating the use monitors the water level condition in the water tank 4, prevent that the user from when filling the water purification to water tank 4, the water purification overflows via the bleeder vent.

A detection method of a chemical detection instrument with an exhaust gas absorption and purification function comprises the following steps:

s1, when the chemical detecting instrument body 1 is used for detecting the experimental article, waste gas is generated, the user turns on the second air pump 31 through the controller, the second air pump 31 provides suction to the second suction head 34, the second suction head 34 absorbs the waste gas around the chemical detecting instrument body 1, then the second suction head 34 transmits the waste gas to the air suction pipe 32 through the shunt pipe 33, thereby being transmitted into the breather pipe 35 through the air suction pipe 32, and finally the breather pipe 35 transmits the waste air into the water tank 4, at the moment, the clean water in the water tank 4 absorbs and settles the dust in the waste air, so as to carry out the preliminary purification of the exhaust gases, which then rise and escape out of the tank 4 via the vent holes, meanwhile, the dust cover 5 further filters the waste gas, at the moment, a user turns on the first air pump 14 through the controller, and at the moment, the first air pump 14 pulls the waste gas at the top of the fixed box 2 through the first suction head 16;

s2, the waste gas falls to the surface of a filter plate 13 on the top of a first support plate 10 through an arc guide plate 6 under the action of traction force, at the moment, the filter plate 13 further filters and purifies the waste gas, meanwhile, the filter plates 13 on the surfaces of a second support plate 11 and a third support plate 12 filter the waste gas for multiple times, three groups of filter plates 13 are utilized to further purify impurities and harmful substances in the waste gas, meanwhile, the first support plate 10, the second support plate 11 and the third support plate 12 prolong the residence time of the waste gas, so that the waste gas is purified more completely, at the moment, the waste gas continues to move under the action of the traction force until the waste gas falls to the right side of a deodorization filter screen, at the moment, a HEPA high-efficiency filter 181, an active carbon filter screen 182 and the deodorization filter screen 183 finally filter and purify suspended particles and harmful substances in the waste gas, finally, the first air pump 14 discharges the completely purified exhaust gas through the outlet pipe 17.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.