CN210474935U

CN210474935U - Numerical control air supplement type variable air volume ventilation cabinet

Info

Publication number: CN210474935U
Application number: CN201921019404.XU
Authority: CN
Inventors: 赵小明
Original assignee: Xinhaichuang Jiamei (beijing) Engineering Technology Co Ltd
Current assignee: Xinhaichuang Jiamei (beijing) Engineering Technology Co Ltd
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2020-05-08
Anticipated expiration: 2029-06-29

Abstract

The utility model discloses a numerical control air supplement type variable air volume ventilation cabinet, which belongs to the technical field of test equipment and comprises a cabinet body, wherein an exhaust pipe is fixedly arranged at the top of the cabinet body, an exhaust fan is fixedly arranged at one end of the exhaust pipe, which is far away from the cabinet body, and a purification mechanism is arranged on the exhaust pipe; the purification mechanism comprises a smell removing component, an alkaline cleaning component and an acidic cleaning component which are fixedly arranged on the exhaust pipe from the cabinet body to one end of the exhaust fan in sequence; the odor removing component comprises a fixed box fixedly arranged on the exhaust pipe, and a plurality of activated carbon plates are detachably connected in the fixed box; the acid cleaning assembly comprises a containing box fixedly arranged on the exhaust pipe, and a containing box filled with alkaline solution is arranged in the containing box; alkaline clearance subassembly holds the box including setting firmly on the exhaust column, holds the incasement and is provided with the box that holds that is equipped with acidic solution, the utility model discloses have the effect that reduces harmful gas and discharge in the air, reduce air pollution.

Description

Numerical control air supplement type variable air volume ventilation cabinet

Technical Field

The utility model belongs to the technical field of test equipment technique and specifically relates to a numerical control mends wind type variable air volume fume chamber is related to.

Background

In order to ensure that toxic and harmful gases in the working cavity of the fume hood do not overflow to the laboratory environment, the laboratory where the fume hood is located must be kept in a negative pressure state, so that a large amount of gases need to be pumped out of the laboratory environment and discharged out of the room through the fume hood. At present, the laboratory is mainly aired exhaust through two forms with the fume chamber: one type is common constant-frequency air exhaust, namely constant air exhaust amount is used for continuously exhausting air outwards, and in order to ensure that air in a working cavity of the ventilation cabinet does not overflow to an indoor environment outside the cabinet, the air exhaust amount is usually set to be a larger value, so that the air exhaust mode can cause large energy consumption of an indoor air conditioner, noise and overhigh negative pressure of a laboratory; the other is common frequency conversion exhaust, namely the exhaust air volume is changed according to the use condition of the fume hood, compared with the exhaust mode, the mode can reduce certain energy consumption, but when a plurality of fume hoods are connected in parallel into a ventilation system of a building for use, the exhaust air volume and the exhaust noise can not be effectively controlled according to different requirements of the exhaust air of each fume hood, and the existing frequency conversion exhaust fume hood control system is additionally installed on the installation site of the fume hood, so that the working time is consumed, and the product quality consistency is poor.

The prior art can refer to the chinese utility model patent that the grant bulletin number is CN204799657U, and it discloses a numerical control mends wind type variable air volume fume chamber, and the integration has required central processing unit of control system, frequency conversion mends fan, frequency conversion exhaust fan, the controllable mends blast valve of aperture and exhaust valve, wind pressure sensor in this fume chamber to and sliding window displacement sensor. The central processing unit adjusts the power of the air supply and exhaust fan and the opening of the air supply and exhaust valve based on the signals received by the sliding window displacement sensor and the air pressure sensor. The control system of the ventilation cabinet further comprises an infrared sensor and a sliding window driving mechanism, and the ventilation cabinet is provided with a control panel, a foot-touch sliding window switch and an emergency exhaust button to achieve the functions of automatically closing the sliding window when no one is on duty, automatically opening the foot-touch sliding window, starting maximum exhaust in emergency and the like.

However, the above utility model has the following disadvantages: the air exhaust channel directly exhausts the gas in the laboratory to the atmosphere, and the toxic and harmful gas is exhausted in the laboratory, so that air pollution is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a numerical control mends wind type variable air volume fume chamber is provided with the exhaust column at the top of the cabinet body, is provided with purification mechanism on the exhaust column, and purification mechanism can purify the gas that the exhaust column was taken out to reduce harmful gas and discharge in the air, reduce air pollution.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a numerical control air supplement type variable air volume ventilation cabinet comprises a cabinet body, wherein an exhaust pipe is fixedly arranged at the top of the cabinet body, an exhaust fan is fixedly arranged at one end of the exhaust pipe, which is far away from the cabinet body, and a purification mechanism is arranged on the exhaust pipe; the purification mechanism comprises a smell removing component, an alkaline cleaning component and an acidic cleaning component which are fixedly arranged on the exhaust pipe from the cabinet body to one end of the exhaust fan in sequence; the odor removing component comprises a fixed box fixedly arranged on the exhaust pipe, and a plurality of activated carbon plates are detachably connected in the fixed box; the acid cleaning assembly comprises a positioning box fixedly arranged on the exhaust pipe, and an accommodating box filled with alkaline solution is arranged in the positioning box; the alkaline cleaning assembly comprises a positioning box fixedly arranged on the exhaust pipe, and an accommodating box filled with acidic solution is arranged in the positioning box.

Through adopting above-mentioned scheme, the exhaust pipe outwards takes out the waste gas that the internal production of cabinet, the outside convulsions of air exhauster on the exhaust pipe, the air current in the air exhauster is in proper order through the active carbon plate in the fixed box, hold alkaline solution and acid solution in the box, the pungent smell etc. in the air current in the exhaust pipe can be absorbed to the active carbon plate, reduce odorous gas's emission, acid solution can take place the reaction with the acid gas in the air current, reduce acid gas's emission, alkaline solution can take place the reaction with the alkaline gas in the air current, reduce alkaline gas's emission, thereby reduce during harmful gas discharges the air, reduce air pollution.

The utility model discloses further set up to: the top of the fixed box is inserted with a cover plate, the two sides of the inner wall of the fixed box are symmetrically and fixedly provided with positioning blocks, one opposite sides of the positioning blocks are provided with clamping grooves, and the activated carbon plate is inserted in the clamping grooves.

By adopting the scheme, when the activated carbon plate needs to be exchanged, the cover plate is opened, the activated carbon plate is taken out from the fixed box, and the activated carbon plate is inserted into the slot of the positioning block, so that the activated carbon plate can be conveniently replaced and installed.

The utility model discloses further set up to: the accommodating box is detachably connected in the positioning box.

Through adopting above-mentioned scheme, hold the dismantlement that the box can follow in the locating box and get off, be convenient for change the acid solution or alkaline solution in holding the box.

The utility model discloses further set up to: one side of the positioning box is provided with a box door, one side of the box door is hinged with the positioning box, and a positioning piece is arranged between the other side of the box door and the positioning box.

By adopting the scheme, the box door can be opened from one side of the positioning box, the accommodating box can be taken out from one side of the positioning box conveniently, and the alkaline solution or the acidic solution in the accommodating box can be replaced conveniently.

The utility model discloses further set up to: the setting element including set firmly in the location case keep away from with the stopper of chamber door hinged end, seted up the internal thread on the stopper, set firmly on the chamber door with stopper complex fixed block, seted up the through-hole on the fixed block, after the bolt passed the through-hole on the fixed block with stopper threaded connection.

Through adopting above-mentioned scheme, the bolt passes behind the through-hole on the fixed block with stopper threaded connection, can be fixed chamber door and location case, the opening and closing of the chamber door of being convenient for can be convenient for will hold the box and take out from the location incasement.

The utility model discloses further set up to: one end of the positioning box is provided with an air inlet for the air exhaust pipe to enter, and the end part of the air exhaust pipe extending into the positioning box through the air inlet is fixedly provided with a limiting disc.

Through adopting above-mentioned scheme, spacing dish can prevent that the exhaust column from breaking away from air intake and location case, need will hold the box and outwards take out or when installing, need upwards stimulate the exhaust column, make the exhaust column with hold the box and break away from, make the exhaust column not influence and hold the dismantlement and the installation of box.

The utility model discloses further set up to: a position, close to the air inlet, of the top of the positioning box is fixedly provided with a limiting piece for fixing the exhaust pipe and the positioning box; the locating part is including setting firmly the screw rod in location case top, and threaded connection has a cardboard on the screw rod, and the top circumference that the exhaust column is located the location case has set firmly the spacing ring, and the cardboard is rotatable to cardboard butt in the top of spacing ring.

Through adopting above-mentioned scheme, the cardboard butt of rotation cardboard can be fixed exhaust column and location case in the top of spacing ring, prevents that the exhaust column from extending to the tip that holds in the box and holding the box and break away from, makes the air current in the exhaust column enter into acid solution, and the air outlet has been seted up to the one end that the air intake was kept away from to the location case, and the exhaust column takes out the air current after acid solution absorbs in the location case from the air outlet.

The utility model discloses further set up to: the cabinet is internally provided with an operating platform, and the top of the cabinet body, which is positioned on the operating platform, is fixedly provided with a horizontally arranged object placing table.

By adopting the above scheme, put the thing platform and can be convenient for place some experimental device, the going on of being convenient for experiment.

To sum up, the utility model discloses following beneficial effect has:

1. the odor removing component, the alkaline cleaning component and the acidic cleaning component are fixedly arranged on the exhaust pipe from the cabinet body to one end of the exhaust fan in sequence, the odor removing component comprises a fixed box fixedly arranged on the exhaust pipe, and a plurality of activated carbon plates are detachably connected in the fixed box; the acidic cleaning assembly comprises a fixed box fixedly arranged on the exhaust pipe, and an accommodating box in which alkaline solution is arranged in the fixed box; the alkaline cleaning component comprises a fixed box fixedly arranged on the exhaust pipe, an accommodating box in an acid solution shape is arranged in the fixed box, airflow in the exhaust pipe sequentially passes through an activated carbon plate in the fixed box, an alkaline solution in the accommodating box and the acid solution, the activated carbon plate can absorb pungent smell and the like in the airflow in the exhaust pipe, emission of odorous gases is reduced, the acid solution can react with the acid gases in the airflow, emission of the acid gases is reduced, the alkaline solution can react with the alkaline gases in the airflow, emission of the alkaline gases is reduced, emission of harmful gases to the air is reduced, and air pollution is reduced;

2. the accommodating box can be detachably connected into the positioning box, so that the accommodating box can be detached from the positioning box, and the acid solution or the alkaline solution in the accommodating box can be conveniently replaced;

3. the air inlet that supplies the exhaust column to get into is seted up through the one end at the location case, and the exhaust column has set firmly a spacing dish through the tip that the air inlet extends to the location incasement, and spacing dish can prevent that the exhaust column from breaking away from with the location case from the air inlet, when needing to outwards take out or install holding the box, needs upwards stimulate the exhaust column, makes the exhaust column break away from with holding the box, makes the exhaust column not influence the dismantlement and the installation that hold the box.

Drawings

FIG. 1 is a schematic structural diagram of a numerical control air supplement type variable air volume fume hood;

FIG. 2 is an isometric view of the embodiment;

FIG. 3 is an exploded view of the exhaust and odor removal assembly;

FIG. 4 is an exploded view of the alkaline cleaning assembly;

figure 5 is a cross-sectional view of an alkaline cleaning assembly.

In the figure, 1, a cabinet body; 11. a test platform; 12. a placing table; 13. a baffle plate; 14. an exhaust pipe; 141. an exhaust fan; 142. a limiting ring; 2. a purification mechanism; 21. a smell-removing component; 211. a fixing box; 212. a cover plate; 213. positioning blocks; 214. a card slot; 215. an activated carbon plate; 22. an alkaline cleaning assembly; 221. a positioning box; 222. accommodating the box; 223. an air inlet; 224. an air outlet; 225. a limiting disc; 226. a limiting member; 2261. a screw; 2262. clamping a plate; 227. a box door; 228. a positioning member; 2281. a limiting block; 2282. a fixed block; 2283. a through hole; 23. an acid cleaning assembly.

Detailed Description

The utility model provides a numerical control mends wind type variable air volume fume chamber, refers to fig. 1, including the cabinet body 1, the cabinet body 1 internal test platform 11 that has set firmly, the cabinet body 1 is located the top of test platform 11 and sets firmly the thing platform 12 that puts that the level set up, and the vertical sliding in one side of the cabinet body 1 is connected with baffle 13, and when out of work, baffle 13 can prevent that dust etc. from entering into on the interior test platform 11 of the cabinet body or the supporter. The top of the cabinet body 1 is fixedly provided with an exhaust pipe 14, and the exhaust pipe 14 can discharge waste gas generated in the test and the like outwards.

Referring to fig. 2 and 3, in order to prevent the exhaust gas generated in the test from being directly discharged to the air, the exhaust pipe 14 is provided with a purification mechanism 2 for treating the exhaust gas generated in the test. An exhaust fan 141 is fixedly arranged at one end of the exhaust pipe 14 far away from the cabinet body 1, the exhaust fan 141 can outwards exhaust the waste gas of the cabinet body 1, and the purification mechanism 2 comprises a smell removing component 21, an alkaline cleaning component 22 and an acidic cleaning component 23 which are sequentially fixedly arranged on the exhaust pipe 14 from the cabinet body 1 to one end of the exhaust fan 141. The odor removing component 21 comprises a fixed box 211 fixedly arranged on the exhaust pipe 14, a cover plate 212 is inserted into the top of the fixed box 211, positioning blocks 213 are fixedly arranged on two sides of the inner wall of the fixed box 211 symmetrically, clamping grooves 214 are formed in one opposite sides of the positioning blocks 213, and activated carbon plates 215 are inserted into the clamping grooves 214, so that the activated carbon plates 215 can be detached and installed conveniently, the activated carbon plates 215 can adsorb toxic gas in the exhaust pipe 14, and the gas in the exhaust pipe 14 is purified.

Referring to fig. 2, the acidic cleaning assembly 23 and the alkaline cleaning assembly 22 are configured identically, and only the alkaline cleaning assembly 22 is illustrated here. Referring to fig. 4 and 5, since the gas generated in the laboratory contains acidic gas and alkaline gas, the alkaline cleaning assembly 22 includes a positioning box 221, a containing box 222 containing acidic solution is placed in the positioning box 221, an air inlet 223 for the air exhaust pipe 14 to enter is formed at one end of the positioning box 221, the air exhaust pipe 14 extends from the air inlet 223 to the containing box 222, a limiting disc 225 is fixedly arranged at the end of the air exhaust pipe 14 extending into the positioning box 221 through the air inlet 223, and the limiting disc 225 can prevent the air exhaust pipe 14 from being separated from the air inlet 223 of the positioning box 221; a limiting piece 226 for fixing the exhaust pipe 14 and the positioning box 221 is fixedly arranged at a position, close to the air inlet 223, of the top of the positioning box 221, the limiting piece 226 comprises a screw 2261 fixedly arranged at the top of the positioning box 221, a clamping plate 2262 is connected to the screw 2261 in a threaded manner, a limiting ring 142 is fixedly arranged at the top of the positioning box 221 in the circumferential direction of the exhaust pipe 14, the clamping plate 2262 is rotated until the clamping plate 2262 abuts against the top of the limiting ring 142, so that the exhaust pipe 14 and the positioning box 221 can be fixed, the end, extending into the accommodating box 222, of the exhaust pipe 14 is prevented from being separated from the accommodating box 222, airflow in the exhaust pipe 14 enters the acidic solution, an air outlet 224 is formed in one end, far away from the air inlet 223, of the positioning box 221, and the air outlet 224 is formed in the exhaust pipe.

Referring to fig. 2 and 4, a door 227 is disposed on one side of the positioning box 221, one side of the door 227 is hinged to the positioning box 221, and a positioning member 228 is disposed between the other side of the door 227 and the positioning box 221. The positioning member 228 includes a limiting block 2281 fixedly disposed on the positioning box 221 and far away from the hinge end of the box door 227, an internal thread is disposed on the limiting block 2281, a fixing block 2282 engaged with the limiting block 2281 is fixedly disposed on the box door 227, a through hole 2283 is disposed on the fixing block 2282, and a bolt is threaded to the limiting block 2281 after passing through the through hole 2283 on the fixing block 2282, so that the box door 227 can be fixed to the positioning box 221, and the accommodating box 222 can be conveniently taken out of the positioning box 221.

The use principle is as follows: experiments are carried out on the operation platform 11 of the cabinet body 1, after the experiments, waste gas generated in the cabinet body 1 is extracted through the exhaust pipe 14, the extracted waste gas sequentially passes through the fixed box 211, the accommodating box 222 filled with the acidic solution and the accommodating box 222 filled with the alkaline solution, and the activated carbon plate 215 in the fixed box 211 can remove odor of air flow in the exhaust pipe 14 and reduce the emission of pungent odor; the acidic solution in the housing box 222 can react with the alkaline gas in the gas flow, i.e., can reduce the emission of the alkaline gas, and the alkaline solution in the housing box 222 can react with the acidic gas in the gas flow, i.e., can reduce the emission of the acidic gas, and finally evolves the gas in the exhaust pipe 14.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a numerical control mends wind type variable air volume fume chamber, includes the cabinet body (1), and exhaust column (14) have set firmly at the top of the cabinet body (1), and exhaust column (14) keep away from the one end of the cabinet body (1) and set firmly air exhauster (141), its characterized in that:

the exhaust pipe (14) is provided with a purification mechanism (2);

the purification mechanism (2) comprises a smell removing component (21), an alkaline cleaning component (22) and an acidic cleaning component (23) which are fixedly arranged on the exhaust pipe (14) from the cabinet body (1) to one end of the exhaust fan (141) in sequence;

the smell removing component (21) comprises a fixed box (211) fixedly arranged on the exhaust pipe (14), and a plurality of activated carbon plates (215) are detachably connected in the fixed box (211);

the acidic cleaning component (23) comprises a positioning box (221) fixedly arranged on the exhaust pipe (14), and an accommodating box (222) filled with alkaline solution is arranged in the positioning box (221);

the alkaline cleaning component (22) comprises a positioning box (221) fixedly arranged on the exhaust pipe (14), and a containing box (222) filled with acidic solution is arranged in the positioning box (221).

2. The numerical control air supplement type variable air volume ventilation cabinet according to claim 1, characterized in that: the top of the fixed box (211) is inserted with a cover plate (212), the two sides of the inner wall of the fixed box (211) are symmetrically and fixedly provided with positioning blocks (213), one opposite side of each positioning block (213) is provided with a clamping groove (214), and the activated carbon plate (215) is inserted in the clamping groove (214).

3. The numerical control air supplement type variable air volume ventilation cabinet according to claim 1, characterized in that: the accommodating box (222) is detachably connected to the positioning box (221).

4. The numerical control air supplement type variable air volume ventilation cabinet according to claim 3, characterized in that: a box door (227) is arranged on one side of the positioning box (221), one side of the box door (227) is hinged with the positioning box (221), and a positioning piece (228) is arranged between the other side of the box door and the positioning box (221).

5. The numerical control air supplement type variable air volume ventilation cabinet according to claim 4, characterized in that: the positioning piece (228) comprises a limiting block (2281) fixedly arranged on the positioning box (221) and far away from a hinge end of the box door (227), an internal thread is formed in the limiting block (2281), a fixing block (2282) matched with the limiting block (2281) is fixedly arranged on the box door (227), a through hole (2283) is formed in the fixing block (2282), and a bolt penetrates through the through hole (2283) in the fixing block (2282) and then is in threaded connection with the limiting block (2281).

6. The numerical control air supplement type variable air volume ventilation cabinet according to claim 1, characterized in that: an air inlet (223) for an air exhaust pipe (14) to enter is formed in one end of the positioning box (221), and a limiting disc (225) is fixedly arranged at the end part of the air exhaust pipe (14) extending into the positioning box (221) through the air inlet (223).

7. The numerical control air supplement type variable air volume ventilation cabinet according to claim 6, characterized in that:

a position, close to the air inlet (223), on the top of the positioning box (221) is fixedly provided with a limiting piece (226) for fixing the exhaust pipe (14) and the positioning box (221);

the limiting piece (226) comprises a screw (2261) fixedly arranged at the top of the positioning box (221), the screw (2261) is connected with a clamping plate (2262) in a threaded mode, the circumference of the top, located on the positioning box (221), of the exhaust pipe (14) is fixedly provided with a limiting ring, and the clamping plate (2262) can rotate to abut against the top of the limiting ring, of the clamping plate (2262).

8. The numerical control air supplement type variable air volume ventilation cabinet according to claim 1, characterized in that: an operation platform (11) is arranged in the cabinet body (1), and a horizontally arranged object placing platform (12) is fixedly arranged at the top of the cabinet body (1) which is positioned on the operation platform (11).