CN205177255U - Produce gas speed presentation device - Google Patents
Produce gas speed presentation device Download PDFInfo
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- CN205177255U CN205177255U CN201520934446.1U CN201520934446U CN205177255U CN 205177255 U CN205177255 U CN 205177255U CN 201520934446 U CN201520934446 U CN 201520934446U CN 205177255 U CN205177255 U CN 205177255U
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- gas
- metering device
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- reaction
- production rate
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Abstract
The utility model provides a produce gas speed presentation device, presentation device wholly becomes airtight setting, presentation device includes two at least gas reaction devices and two at least gaseous metering device that set up rather than the correspondence, the gas reaction device is used for holding the gaseous material of production and the reaction liquid of different concentration, gaseous metering device with the gas reaction device is linked together, all hold the liquid that marks that is in same horizontal plane among two at least gaseous metering device. The utility model discloses a produce gas speed presentation device can carry on two more than the experiment in step, not only can relatively produce gaseous speed, produces gaseous speed in can directly calculating different gas reaction devices moreover, clear, and sense organ nature is strong, promotes the learner to the understanding of chemical reaction speed notion, the experiment effect of results ideal, in addition, the reactant quantity is few, has both saved the medicine and has also shortened the run time.
Description
Technical field
The utility model relates to technical field of experiment equipment, in particular to a kind of gas production rate apparatus for demonstrating.
Background technology
The experiment (as: experiment of zinc and sulfuric acid reaction speed is measured in the arrangement of Ren Jiaoban regular senior secondary school " chemistry " (taking as an elective course 4) teaching material chapter 2 first segment) of the measurement zinc in current regular senior secondary school " chemistry " and sulfuric acid reaction speed, be intended to need the different time by producing equal-volume hydrogen, with the expression of the chemical reaction rate of experimental result explanation the most intuitively, make student produce perceptual knowledge, thus promote the understanding to chemical reaction rate concept.
But there is following problem in this apparatus for demonstrating: drug dosage is many, and the reaction time is long; Complicated operation, needs 2 covering device experiments successively to react; And because the hydrogen produced upwards can recoil sulfuric acid from separating funnel spilling, and cause measuring error large.
Utility model content
Given this, the utility model provides a kind of gas production rate apparatus for demonstrating, and be intended to solve existing gas production rate apparatus for demonstrating drug dosage many, the reaction time is long, complicated operation, the technical matters that test error is large.
The utility model provides a kind of gas production rate apparatus for demonstrating, described apparatus for demonstrating entirety becomes airtight setting, described apparatus for demonstrating comprises at least two gas reaction devices and at least two gas-metering device arranging corresponding to it, and described gas reaction device produces the material of gas and the reactant liquor of variable concentrations for holding; Described gas-metering device and described gas reaction device its be connected, be all contained with the mark liquid being in same level in described at least two gas-metering device.
Further, in above-mentioned gas production rate apparatus for demonstrating, institute's gas reaction device comprises airtight reactor, described airtight reactor is provided with mark liquid regulating device, described mark liquid regulating device is connected with described gas-metering device, and the mark liquid at least two gas-metering device described in regulating is in same level.
Further, in above-mentioned gas production rate apparatus for demonstrating, described gas reaction device also comprises reactant liquor input media, and described reactant liquor input media is used for the reactant liquor of variable concentrations to input in airtight reactor, and described airtight reactor produces the material of gas for holding.
Further, in above-mentioned gas production rate apparatus for demonstrating, described reactor comprises reaction vessel, support vessels is arranged with outside described reaction vessel, the described material for generation of gas is placed in described reaction vessel, described reactant liquor input media is located at one end of described reaction vessel, and described gas-metering device is connected with the other end of described reaction vessel.
Further, in above-mentioned gas production rate apparatus for demonstrating, described reactant liquor input media and described mark liquid regulating device are all located at the top of described airtight reactor, described gas-metering device is located at the below of described airtight reactor and is communicated with it, described reactant liquor input media is located at the top of described reaction vessel, and the bottom of described reaction vessel is resisted against the inwall of described gas-metering device.
Further, in above-mentioned gas production rate apparatus for demonstrating, described reaction vessel is resisted against the inwall of described gas-metering device by the projection of at least two bottom it.
Further, in above-mentioned gas production rate apparatus for demonstrating, described mark liquid regulating device is also provided with first liquid enclosed switch.
Further, in above-mentioned gas production rate apparatus for demonstrating, described apparatus for demonstrating also comprises removal waste fluid device, and described at least two gas-metering device are connected, and is connected with described removal waste fluid device by floss hole.
Further, in above-mentioned gas production rate apparatus for demonstrating, described apparatus for demonstrating comprises two gas reaction devices and two gas-metering device, and described two gas-metering device are connected into U-shaped, and described two gas-metering device are connected with described removal waste fluid device by floss hole.
Further, in above-mentioned gas production rate apparatus for demonstrating, the integral formula of described two gas-metering device is arranged, or described two gas-metering device are connected by web member.
Further, in above-mentioned gas production rate apparatus for demonstrating, described web member is three-way pipe, and the both sides of described three-way pipe are connected with two gas-metering device respectively, and the bottom of described three-way pipe is connected with described floss hole.
Further, in above-mentioned gas production rate apparatus for demonstrating, described floss hole is provided with second liquid enclosed switch.
Further, in above-mentioned gas production rate apparatus for demonstrating, described apparatus for demonstrating also comprises support body, and described two gas reaction devices and two gas-metering device are located at the both sides of described support body in couples.
Gas production rate apparatus for demonstrating of the present utility model, the gas reaction device producing the material of gas and the reactant liquor of variable concentrations is held by least two, and each gas reaction device correspondence is provided with coupled logical gas-metering device, fills the design of the consistent mark liquid of surface level in gas-metering device; Mark is carried out in advance at the initial liquid level of gas reaction device and the terminal for reacting, at least two reaction units generated reactive gas respectively, gas comes downwards to and makes the mark liquid in gas-metering device descending, indicate in meter gaseous measuring apparatus that liquid comes downwards to the time of the terminal for reaction, and the amount that mark liquid is descending, can directly calculate the speed producing gas in gas with various reaction unit, the speed producing gas can also be compared, simple and clear, by force aesthetic, promote that student is to the understanding of chemical reaction rate concept, gathers in the crops desirable experiment effect; And only need a set of equipment, the reactant liquor of needs is few, the gas generation apparatus of contrast can synchronously carry out simultaneously, not only more directly perceived, and saves time.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and is not thought restriction of the present utility model.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
The one-piece construction schematic diagram of the gas production rate apparatus for demonstrating that Fig. 1 provides for the utility model embodiment;
The structural representation of the gas reaction device in the gas production rate apparatus for demonstrating that Fig. 2 provides for the utility model embodiment;
Structural representation when gas-metering device in the gas production rate apparatus for demonstrating that Fig. 3 provides for the utility model embodiment is L-type test tube.
Embodiment
Below with reference to accompanying drawings exemplary embodiment of the present disclosure is described in more detail.Although show exemplary embodiment of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment set forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
Unless specifically stated otherwise, reagent used in following examples and instrument all can be commercially available from regular channel.
The embodiment of gas production rate apparatus for demonstrating:
See Fig. 1 to Fig. 3, there is shown the preferred structure of the gas production rate apparatus for demonstrating that the utility model embodiment provides.As shown in the figure, the gas production rate apparatus for demonstrating that the present embodiment provides, apparatus for demonstrating entirety becomes airtight setting, comprising: at least two gas reaction devices 1 and at least two gas-metering device 2 that arrange corresponding to it.
Wherein: gas reaction device 1 produces the material of gas and the reactant liquor of variable concentrations for holding; Gas-metering device 2 is connected with gas reaction device 1, is contained with the mark liquid being in same level at least two gas-metering device 2.Preferably, gas-metering device 2 to be located at below gas reaction device 1 and coupled logical, is about to liquid discharge under being convenient to gas, accurate measurement.During concrete enforcement, the solution that mark liquid can be red or blue; The material producing gas can be aluminium, zinc, magnesium or iron etc., and reacts oxygenous catalyzer with hydrogen peroxide, and the reactant liquor of variable concentrations can be watery hydrochloric acid, dilute sulfuric acid, acetic acid and hydrogen peroxide etc.
See Fig. 2, in above-described embodiment, gas reaction device 1 comprises airtight reactor 3, and airtight reactor 3 is provided with mark liquid regulating device 4, mark liquid regulating device 4 is connected with gas-metering device 2, and regulates the mark liquid at least two gas-metering device 2 to be in same level.Regulated the mark liquid in gas with various measuring apparatus 2 by mark liquid regulating device 4, make it be in same level, be convenient to the reaction rate controlling contrast gas.
In above-described embodiment, gas reaction device 1 also comprises reactant liquor input media 5, and reactant liquor input media 5 is for inputting in airtight reactor 3 by the reactant liquor of variable concentrations, airtight reactor 3 produces the material of gas for holding.During concrete enforcement, reactant liquor input media 5 can be transfusion device with a scale or drop bottle, the convenient input quantity controlling the reactant liquor of variable concentrations, thus calculates the reaction rate of gas more easily.
In above-described embodiment, reactor 3 reaction vessel 13, is arranged with support vessels outside reaction vessel 13, and the material for generation of gas is placed in reaction vessel 13, reactant liquor input media 5 is located at one end of reaction vessel 13, and gas-metering device 2 is connected with the other end of reaction vessel 13.
In above-described embodiment, reactant liquor input media 5 and mark liquid regulating device 4 are all located at the top of airtight reactor 3, gas-metering device 2 is located at the below of airtight reactor 3 and coupled logical, reactant liquor input media 5 is located at the top of reaction vessel 13, and the bottom of reaction vessel 13 is resisted against the inwall of gas-metering device 2.Reactant liquor input media 5 is located at the top of reaction vessel 13, convenient by the reactant liquor of variable concentrations input reaction vessel.
In above-described embodiment, reaction vessel 13 is resisted against the inwall of gas-metering device 2 by the projection of at least two bottom it 14.Preferably, reaction vessel 13 is resisted against gas-metering device 2 inwall by the projection of three bottom it 14.During concrete enforcement, support vessels or reaction vessel 13 all can be test tube, conduit or graduated cylinder.During concrete enforcement, support vessels can be conical flask or test tube, and the top of support vessels is provided with single hole plug, mark liquid regulating device 4 can be conduit or test tube, mark liquid regulating device 4 is through single hole plug, and indicate that the end of liquid regulating device 4 is positioned at reaction vessel 13 top, thus be convenient to indicate the liquid level indicating liquid in the pressure adjustments of gas measuring apparatus 2 of liquid regulating device 4 by the generation of extruding air, and the distance between reaction vessel 13 top and single hole plug is about 1cm, three projections (bearing) are provided with bottom reaction vessel 13, by being resisted against on the inwall of gas-metering device three projections, larger space is also had between whole reaction vessel 13, when test tube parts 13 put into gas-metering device 2, larger space is had between each several part of reaction vessel 13 and gas-metering device 2, be beneficial to the gas that in reaction vessel 13, reaction produces and enter gas-metering device, gas-metering device 2 internal gas pressure is increased, promote solution and enter removal waste fluid device 7 downwards.
In above-described embodiment, mark liquid regulating device 4 is also provided with first liquid enclosed switch 6.After liquid level in convenient adjustment gas with various measuring apparatus 2 is in same plane, closes and make whole apparatus for demonstrating be in locking device, can not leak gas in the reaction, and produce error.During concrete enforcement, first liquid enclosed switch 6 can be tongs or spring clamp, first liquid enclosed switch 6 is connected with mark liquid regulating device 4 by the first rubber tube 11, by pressing, the air pressure produced causes the mark liquid in gas-metering device 2 descending, thus makes the mark liquid in gas with various measuring apparatus 2 be in same plane.
In above-described embodiment, this apparatus for demonstrating also comprises removal waste fluid device 7, and at least two gas-metering device 2 are connected, and is connected with removal waste fluid device 7 by same floss hole 8.Can the space of economy system, thus make whole apparatus for demonstrating more compact small and exquisite.During concrete enforcement, removal waste fluid device 7 can be sesame seed cake or graduated cylinder.
In above-described embodiment, this apparatus for demonstrating comprises two gas reaction devices 1 and two gas-metering device, 2, two gas-metering device 2 are connected into U-shaped, and two gas-metering device 2 are connected with removal waste fluid device 7 by floss hole 8.Two complete equipments can compare the speed of the reactant liquor generated reactive gas of variable concentrations, and intuitively, easy to understand, can also save lab space, save consersion unit.
In above-described embodiment, two integral formulas of gas-metering device 2 are arranged, or two gas-metering device 2 are connected by web member.Can select different modes as required, the setting of integral type can make whole apparatus for demonstrating more compact small and exquisite.
Further, in above-mentioned gas production rate apparatus for demonstrating, web member is three-way pipe, and the both sides of three-way pipe are connected with two gas-metering device 2 respectively, and the bottom of three-way pipe is connected with floss hole 8.During concrete enforcement, gas-metering device 2 can be L-type pipe with a scale, and be communicated with into U-shaped by two gas-metering device by three-way pipe 10, L-type pipe comprises body 201 with a scale, body 201 is provided with connector 202, when L-type pipe is connected with reaction unit, the bottom of the support vessels in reactor 3 is inserted on the connector 202 of L-type pipe, the projection 14 of the bottom of reaction vessel 13 is resisted against on L-type inside pipe wall, make reaction vessel 13 and L-type pipe contact site have space, the convenient gas produced is descending.
In above-described embodiment, floss hole 8 is provided with second liquid enclosed switch 9.Can close second liquid enclosed switch 9 during mark liquid in adjustments of gas measuring apparatus 2, this second liquid enclosed switch 9 of outwarding winding after regulating, facilitates real-time adjustment marks liquid, easy to use.During concrete enforcement, second liquid enclosed switch 9 can be tongs or spring clamp, and second liquid enclosed switch 9 is connected with removal waste fluid device 7 by the second rubber tube 12.
In above-described embodiment, this apparatus for demonstrating also comprises support body 12, and described two gas reaction devices 1 and two gas-metering device 2 are located at the both sides of support body 12 in couples, and removal waste fluid device 7 is located at the bottom of support body 12.
To sum up, gas production rate apparatus for demonstrating of the present utility model, the gas reaction device 1 producing the material of gas and the reactant liquor of variable concentrations is held by least two, and each gas reaction device 1 correspondence is provided with coupled logical gas-metering device 2, fills the design of the consistent mark liquid of surface level in gas-metering device 2; Mark is carried out in advance at the initial liquid level of gas reaction device 1 and the terminal for reacting, at least two gas reaction devices 1 generated reactive gas respectively, gas comes downwards to and makes the mark liquid in gas-metering device 2 descending, indicate in meter gaseous measuring apparatus 2 that liquid comes downwards to the time of the terminal for reaction, and the amount that mark liquid is descending, can directly calculate the speed producing gas in gas with various reaction unit 1, simple and clear, by force aesthetic, promote that student is to the understanding of chemical reaction rate concept, gathers in the crops desirable experiment effect; And only need a set of equipment, the reactant liquor of needs is few, the gas generation apparatus of contrast can synchronously carry out, not only more directly perceived, and saves time.
Mode below by way of specific embodiment illustrates how gas reaction speed apparatus for demonstrating of the present utility model carries out the demonstration of gas reaction speed:
Embodiment 1
As added red solution in L-type test tube, liquid level is at 0 scale; In vitro add the magnesium rod of equivalent respectively, in syringe, add the sulfuric acid solution of 1ml variable concentrations respectively; Observe two ends liquid level equal, close the tongs of mark liquid regulating device 4, open the tongs on the floss hole 8 of removal waste fluid device 7 again, can see that two ends liquid level declines simultaneously, a small amount of water flows into removal waste fluid device 7 (beaker), after current stop, and record two ends liquid level scale, approximately all at 0.8ml place, then mark at 0.8ml and the 6.8ml place of two L-type test tubes (making marks on L-type test tube by bungee) respectively; Then, sulfuric acid solution is clamp-oned in reactor (test tube) 3, start timing, record two ends liquid level arrives the 6.8ml time used, and one is 12 seconds, and another is 34 seconds.Record data as described in Table 1:
Table 1
| Institute's reagent adding | Reaction time (s) | Reaction rate (ml/s) |
| 0.4mol/L | 34 | 5/34 |
| 0.6mol/L | 12 | 5/12 |
Know by analyzing, V hydrogen=V fixed-V beginning-V acid=6.8-0.8-1=5ml, wherein, V hydrogen: represent hydrogen reaction speed, V is fixed: the volume representing the terminal for reaction, and V begins: the volume representing beginning flag liquid, V acid: the volume representing the sulfuric acid added, reaction rate can be calculated divided by the time used respectively and be respectively 5/36ml/s, 5/12ml/s.
The above results illustrates, gas production rate apparatus for demonstrating of the present utility model, can complete at least two experiments, easy and simple to handle, visual phenomenon simultaneously, directly measures the reaction rate of hydrogen; Adopt drainage to collect gas, experimental error is little, the experiment used time is short; Combination of qualitative and quantitative analysis, both can compare and produce gas speed, also can measure generation gas velocity; Applied range, be applicable to liquid and between liquid or solid and liquid, react the contrast experiment having gas to produce, as compared the catalytic effect of hydrogen peroxide under different catalysts effect, the experiments such as the severe degree that stronger and weaker electrolyte hydrochloric acid, acetic acid and magnesium rod react.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (10)
1. a gas production rate apparatus for demonstrating, described apparatus for demonstrating entirety becomes airtight setting, it is characterized in that, described apparatus for demonstrating comprises at least two gas reaction devices (1) and at least two gas-metering device (2) that arrange corresponding to it, and described gas reaction device (1) produces the material of gas and the reactant liquor of variable concentrations for holding; Described gas-metering device (2) is connected with described gas reaction device (1), is all contained with the mark liquid being in same level in described at least two gas-metering device (2).
2. gas production rate apparatus for demonstrating according to claim 1, it is characterized in that, institute's gas reaction device (1) comprises airtight reactor (3), described airtight reactor (3) is provided with mark liquid regulating device (4), described mark liquid regulating device (4) is connected with described gas-metering device (2), and the mark liquid at least two gas-metering device (2) described in regulating is in same level.
3. gas production rate apparatus for demonstrating according to claim 2, it is characterized in that, described gas reaction device (1) also comprises reactant liquor input media (5), described reactant liquor input media (5) is for inputting in airtight reactor (3) by the reactant liquor of variable concentrations, described airtight reactor (3) produces the material of gas for holding.
4. gas production rate apparatus for demonstrating according to claim 3, it is characterized in that, described reactor (3) comprises reaction vessel (13), described reaction vessel is arranged with support vessels outside (13), the described material for generation of gas is placed in described reaction vessel (13), described reactant liquor input media (5) is located at one end of described reaction vessel (13), and described gas-metering device (2) is connected with the other end of described reaction vessel (13).
5. gas production rate apparatus for demonstrating according to claim 4, it is characterized in that, described reactant liquor input media (5) and described mark liquid regulating device (4) are all located at the top of described airtight reactor (3), and described gas-metering device (2) is located at the below of described airtight reactor (3) and is communicated with it; Described reactant liquor input media (5) is located at the top of described reaction vessel (13), and the bottom of described reaction vessel (13) is resisted against the inwall of described gas-metering device (2).
6. gas production rate apparatus for demonstrating according to claim 5, is characterized in that, described reaction vessel (13) is resisted against the inwall of described gas-metering device (2) by the projection of at least two bottom it (14).
7. the gas production rate apparatus for demonstrating according to any one of claim 2 to 6, is characterized in that, described mark liquid regulating device (4) is also provided with first liquid enclosed switch (6).
8. the gas production rate apparatus for demonstrating according to any one of claim 2 to 6, it is characterized in that, described apparatus for demonstrating also comprises removal waste fluid device (7), described at least two gas-metering device (2) are connected, and be connected with described removal waste fluid device (7) by floss hole (8), described floss hole (8) is provided with second liquid enclosed switch (9).
9. gas production rate apparatus for demonstrating according to claim 8, it is characterized in that, described apparatus for demonstrating comprises two gas reaction devices (1) and two gas-metering device (2), described two gas-metering device (2) are connected into U-shaped, and described two gas-metering device (2) are connected with described removal waste fluid device (7) by floss hole (8).
10. gas production rate apparatus for demonstrating according to claim 9, is characterized in that, the integral formula of described two gas-metering device (2) is arranged, or described two gas-metering device (2) are connected by web member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934446.1U CN205177255U (en) | 2015-11-20 | 2015-11-20 | Produce gas speed presentation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934446.1U CN205177255U (en) | 2015-11-20 | 2015-11-20 | Produce gas speed presentation device |
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| CN205177255U true CN205177255U (en) | 2016-04-20 |
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| CN201520934446.1U Expired - Fee Related CN205177255U (en) | 2015-11-20 | 2015-11-20 | Produce gas speed presentation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110288867A (en) * | 2019-06-28 | 2019-09-27 | 徐州工业职业技术学院 | A kind of imitative experimental appliance of chemical production line Detection & Controling |
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2015
- 2015-11-20 CN CN201520934446.1U patent/CN205177255U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110288867A (en) * | 2019-06-28 | 2019-09-27 | 徐州工业职业技术学院 | A kind of imitative experimental appliance of chemical production line Detection & Controling |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20171120 |