CN206074333U - A kind of series and parallel water scavenging system - Google Patents

Abstract

The utility model discloses a kind of series and parallel water scavenging system, including：One-level water removal body；Two grades of water removal bodies, the one-level water removal body and two grades of water removal bodies are in parallel, and the one end after parallel connection is connected with burner, with the mixed gas produced after receiving the burner burning；Third class de-watering mechanism, the third class de-watering mechanism are connected with the other end of the one-level water removal body and two grades of water removal bodies after parallel connection so that third class de-watering mechanism is in series with one-level water removal body, two grades of water removal bodies respectively.This utility model realize in detection process produced by mixed gas in moisture fully, effectively remove, it is ensured that the accuracy of detection.

Description

A kind of series and parallel water scavenging system

Technical field

This utility model belongs to detection technique field, more particularly to a kind of series and parallel water scavenging system.

Background technology

The measure of full nitrogen/protein content is widely used in milk product, food, animal feed, corn, fertilizer, Nicotiana tabacum L., plant The detection of the products such as thing, traditional detection meanss are Kjeldahl's method, it as industrial standard executed for many years, but using corrosion Property soda acid, operating procedure is complicated, time-consuming and environmental pollution is seriously difficult to meet the needs for detecting development now.Specifically, It is, under conditions of having catalyst, organic nitrogen to be all transformed into inorganic ammonium salt with concentrated sulphuric acid sample digestion, then in alkaline bar Ammonium salt is converted into into ammonia under part, is distillated with vapor and is absorbed for excessive acid solution, then with standard acidometric titration, so as to calculate sample Nitrogen content in product, that is, predominantly detect process to clear up → distilling → titrate.However, setting for total nitrogen analysis of the prior art It is standby, how the moisture in the mixed gas in detection process by produced by burner is carried out fully, effectively remove, to protect The accuracy of card detection, always urgent need to solve the problem.

Utility model content

This utility model provides a kind of series and parallel water scavenging system, solves or partly solves of the prior art above-mentioned Technical problem.

According to one side of the present utility model, there is provided a kind of series and parallel water scavenging system, wherein, total nitrogen analytical equipment Including burner；The series and parallel water scavenging system includes water trap, and the water trap includes：One-level water removal body；Two Level water removal body, the one-level water removal body and two grades of water removal bodies are in parallel, and the one end after parallel connection and the burning Device connects, with the mixed gas produced after receiving the burner burning；Third class de-watering mechanism, the third class de-watering mechanism It is connected with the other end of the one-level water removal body and two grades of water removal bodies after parallel connection so that the third class de-watering mechanism It is in series with the one-level water removal body, two grades of water removal bodies respectively, to pass through the third class de-watering authorities through described One-level water removal body and two grades of water removal bodies are except the mixed gas after water process.

Optionally：The burner is temperature control 1100 DEG C of combustion furnace.

Optionally：The one-level water removal body includes：First glass physical condenser, the first electronic cooling dehydrater and One adsorbent；The first glass physical condenser is connected with the burner and the first electronic cooling dehydrater respectively Connect；First adsorbent is connected with the first electronic cooling dehydrater.

Optionally：Two grades of water removal bodies include：Second glass physical condenser, the second electronic cooling dehydrater and Two adsorbents；The second glass physical condenser is connected with the burner and the second electronic cooling dehydrater respectively Connect；Second adsorbent is connected with the second electronic cooling dehydrater.

Optionally：The third class de-watering mechanism includes：3rd glass physical condenser, the 3rd electronic cooling dehydrater and Three adsorbents；The 3rd glass physical condenser respectively with first adsorbent, second adsorbent and the described 3rd Electronic cooling dehydrater connects；The 3rd electronic cooling dehydrater and the 3rd adsorbent connection；3rd adsorbent It is connected with the reduction apparatus.

Optionally：The first glass physical condenser is third generation double-tee glass condenser, the first electronics system Cold dehydrater is semiconductor cooler, and first adsorbent is silica gel, activated alumina or activated carbon.

Optionally：The second glass physical condenser is third generation double-tee glass condenser, the second electronics system Cold dehydrater is semiconductor cooler, and second adsorbent is silica gel, activated alumina or activated carbon.

Optionally：The 3rd glass physical condenser is third generation double-tee glass condenser, the 3rd electronics system Cold dehydrater is semiconductor cooler, and the 3rd adsorbent is silica gel, activated alumina or activated carbon.

A kind of series and parallel water scavenging system that this utility model embodiment is provided, by one-level water removal body, two grades of water removing machines Structure and third class de-watering mechanism, the mixed gas exported to burner carry out eliminating water, realize in detection process produced by Moisture in mixed gas fully, is effectively removed, it is ensured that the accuracy of detection.

Description of the drawings

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Needed for accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to this A little accompanying drawings obtain other accompanying drawings.

The structural schematic block diagram one for total nitrogen analytical equipment that Fig. 1 is provided for this utility model embodiment；

The structural schematic block diagram two for total nitrogen analytical equipment that Fig. 2 is provided for this utility model embodiment；

The structural schematic block diagram three for total nitrogen analytical equipment that Fig. 3 is provided for this utility model embodiment；

Structural schematic block diagrams of the Fig. 4 for the burner in Fig. 2；

Structural schematic block diagrams of the Fig. 5 for the sampling processing meanss in Fig. 2；

Structural schematic block diagrams of the Fig. 6 for the water trap in Fig. 2；

Structural schematic block diagrams of the Fig. 7 for the reduction apparatus in Fig. 2；

Structural schematic block diagrams of the Fig. 8 for the purifier in Fig. 2；

Structural schematic block diagrams of the Fig. 9 for the detection means in Fig. 2；

The schematic flow sheet one of the method for the measure nitrogen content that Figure 10 is provided for the another embodiment of utility model；

The schematic flow sheet two of the method for the measure nitrogen content that Figure 11 is provided for the another embodiment of utility model；

Figure 12 is the schematic flow sheet of water removal phase in Figure 11；

Figure 13 is the schematic flow sheet of purifying step in Figure 11；

Figure 14 is the schematic flow sheet of reduction step in Figure 11；

The overall structure diagram for total nitrogen analytical equipment that Figure 15 is provided for this utility model embodiment.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole Embodiment.Based on the embodiment in this utility model, the every other embodiment obtained by those of ordinary skill in the art all belongs to In the scope of this utility model protection；Involved "and/or" key word wherein in this enforcement, represent and, or two kinds of situations, change Sentence is talked about, and the A and/or B mentioned by this utility model embodiment illustrates A and B, two kinds of situations of A or B, describe A and B and deposited Three kinds of states, such as A and/or B, represent：Only including A does not include B；Only including B does not include A；Including A and B.

Meanwhile, in this utility model embodiment, when component is referred to as " being fixed on " another component, it can be directly another On one component or can also there is component placed in the middle.When a component is considered as " connection " another component, it can be It is directly connected to another component or may be simultaneously present component placed in the middle.When component be considered as " being arranged at " another Component, it can be set directly on another component or may be simultaneously present component placed in the middle.This utility model embodiment Used in term " vertical ", " level ", "left", "right" and similar statement be merely for purposes of illustration, not It is intended to limit this utility model.

A kind of series and parallel water scavenging system that this utility model embodiment is provided, by one-level water removal body, two grades of water removing machines Structure and third class de-watering mechanism, the mixed gas exported to burner carry out eliminating water, realize in detection process produced by Moisture in mixed gas fully, is effectively removed, it is ensured that the accuracy of detection.In order to this utility model is provided string, Water scavenging system in parallel elaborates, to support technical problem to be solved in the utility model, below, this utility model is provided Embodiment in, first total nitrogen analytical equipment is elaborated, then narration total nitrogen analytical equipment during, further The water trap that this utility model is provided is drawn targetedly, to reach purpose that is complete, clear, understanding.

Fig. 1 is referred to specifically, this utility model embodiment provides one kind is used for total nitrogen analytical equipment, at least including burning Device 200, reduction apparatus 400, purifier 500 and detection means 600.Wherein, the burner 200 is also original-pack with described Put 400 connections so that testing sample fully burns in the burner 200, and produces mixed gas.While reduction apparatus 400 are connected with purifier 500 so that produced mixed gas are in purifier 500 through a series of control techniquess institutes Purification.Purity nitrogen molecule, and the purifier 500 and the detection means 600 are comprised only in realizing the gas after final purification Connection so that the content of nitrogen in purified gas, is detected by the detection means.In this utility model embodiment, pass through At least the above burner 200, reduction apparatus 400, purifier 500 and detection means 600 constitute described for total nitrogen analysis Equipment, instead of in conventional art using Kjeldahl's method caused use corrosivity soda acid, operating procedure is complicated, time-consuming And the technological deficiency that environmental pollution is serious.

In order to what this utility model embodiment was provided elaborates for total nitrogen analytical equipment, with reference to Fig. 2-9 Respectively burner 200, reduction apparatus 400, purifier 500 and detection means 600 are elaborated, further to support Technical problem to be solved in the utility model.

For firstly, for burner 200,

As the temperature range and the Temperature Distribution in stove of burning have vital effect to test result. Therefore, the burner 200 described in this utility model embodiment is 1100 DEG C of combustion furnaces, and is uniform constant temperature.

In this utility model embodiment, before testing sample enters burner 200, can also be filled by sample introduction process Put 100 physical treatments for carrying out early stage.Wherein, the early stage physical treatment of the testing sample can be divided into the following two kinds situation：(1) If testing sample is the solid sample of anisotropic, testing sample is pulverized and sieved into process before sample is claimed；(2) if to be measured Sample is liquid and beans class sample, then directly can claim in crucible.Wherein, described in this utility model embodiment, crucible can Reuse, to reach the technique effect without the need for consumptive material.Meanwhile, the crucible required for this utility model embodiment can be following earthenware One kind in crucible：Quartz, ceramics, steel, nickel, platinum etc., to reach the purpose for being suitable for various testing samples.So as to overcome employing When other instruments are analyzed, sample must pressing mold molding and with tinfoil wrap up just can sample introduction analysis, sample preparation is complicated, and tin can is one Secondary property consumptive material, operating cost are high, the more technological deficiency of combustion-supporting gas and carrier gas consumption.Further, due to this utility model reality Apply example to process as digested the chemical reagent with toxicity, so as to eliminate traditional Kjeldahl's method without the need for any extra sample chemical Complex operation, digestion time length, the technological deficiency that environmental pollution is serious, safety coefficient is low.

In this utility model embodiment, the testing sample is directly weighed in the repeatedly used crucible, earthenware Crucible be located at sampler on and can Reusability, the testing sample weigh can with using PC ends automatization record by the way of, That is, sample introduction processing meanss 100 can at least include an electronic weigher, can be weighed in real time by the electronic weigher and be located at The quality of sample in crucible, and weight DBMS in the weight data information transfer for being gathered to PC ends, will be generated and preserved, from And effectively eliminate by manual entry data and the technological deficiency of caused recording error and/or calculation error.

Explanation is needed exist for, in order to be able to data measured in this utility model embodiment are stored and shown Show.Preferably, continuing with referring to Fig. 2, this utility model embodiment is additionally provided with a data storage 800 and a display device 700.Wherein, the data storage 800 carries out signal transmission with the electronic weigher and the detection means respectively, with right The data of reception are stored.Meanwhile, display device is connected and carries out signal transmission with the detection means, to receive the inspection The data message detected by device is surveyed, and the data message is shown.Certainly, display device here can include one Power supply source 701 and a display end 702.The display end 702 is connected with the power supply source 701, with by the power supply source 701 The display end 702 is powered in real time, and the display end 702 is carried out signal transmission with the detection means.It is worth one It is mentioned that, the display end is liquid crystal display.

Further, the sample introduction processing meanss 100 at least include：Sampler 101, mechanical arm 102, power source 103, Plus/minus speed mechanism, actuating device and bracket institution etc.；Wherein, the sampler 101 is porous plate disc structure.It is intrinsic thereon One crucible 104；Mechanical arm 102 is rotationally fixed on the sampler 101, and the power source 103 is mechanical arm 102 Operation provides power, to drive sampler 101 to be moved by the motion of mechanical arm 102, and then realizes driving crucible 104 to enter Row motion.Here power source 103 can select motor or servomotor as controlled motor.But preferably, this reality With new embodiment from motor as mechanical arm 102 power source 103 so as to control mode flexibly, take up an area face The advantages of product little, low price.Meanwhile, plus/minus speed mechanism, actuating device are connected with mechanical arm 102 respectively so that by plus/ Motion of the reducing gear to mechanical arm 102 is accelerated or is slowed down, bracket institution to mechanical arm 102, acceleration and deceleration mechanism and/ Or actuating device is supported.And actuating device can be ball screw nut transmission, so that the rotation of mechanical arm is transported It is dynamic to be converted to linear motion, to promote the crucible equipped with testing sample to be moved.Wherein, plus/minus speed mechanism and actuating device Frame for movement and motion principle think prior art, here is omitted.

In detail, in this utility model embodiment, 1100 DEG C of combustion furnaces are using unique upper furnace structure and by under And on vertical input mode.That is, body of heater 201 is located at the top of sampler 101.

Wherein, the transmission of the sampler 101 is connected by control using the vertical input mode of linear type from bottom to top The mechanical arm 102 for being connected to the sampler 101 heads into the crucible 104 on sampler 101 in body of heater 201 so that sample After being burnt in combustion furnace completely, mechanical arm 102 is transferred to which on sampler 101 from top to bottom.Sample after ashing is then protected Stay in crucible 104, and the automatic interference-free of sample after ashing can be transferred to into instrument by controlling sampler 101 after analysis Outside device, dust is cleaned without blow-on, need not safeguard；Sample direct injected, need not reach solid with tinfoil parcel, without pressing mold Body, fluid sample test are all obtained accurate result.The design is substantially shorter detection cycle, and can extend thermal cycle part Service life (4-5 times).Determine to determine using the Dumars of the next furnace design in blood urea/nitrogen analyzer so as to effectively overcome tradition Nitrogen instrument sample must pressing mold molding and with tinfoil parcel after just can sample introduction analysis, and in cinder catcher sample ash reach it is a certain amount of The technological deficiency that dust in cinder catcher is removed by necessary craft blow-on afterwards.

This utility model embodiment is solid by using unique upper furnace structure and vertical input mode, realizing The quick detection of body, fluid sample, moreover it is possible to reach the full automation from sample process to assay.Additionally, burning is produced Carrier gas stream can take away automatically sample dust, clean dust without blow-on, need not safeguard, realize multiple samples and simultaneously detect, and And sample-adding can be circulated.This improvement can greatly promote automaticity, shorten sample processing time, improve system effectiveness, and System service life can significantly be extended.

It should be strongly noted that in this utility model embodiment, due to the testing sample and in burner 200 Contain moisture in the product of interior burning, thus from burner 200 gaseous state NOx out need through water trap 300 Carry out except water process.The water trap 300 is connected between the burner 100 and the reduction apparatus 400, specifically may be used As shown in Figures 2 and 3.

Certainly, it should be noted that in sample introduction processing meanss 100 here, the quantity of sampler 101 can also be many Individual, mechanical arm 102 is provided with the multiple lever arms being adapted with 101 quantity of sampler, and one is fixed with each lever arm Corresponding sampler, is fixed with a crucible on each sampler 101.Thus can cause by set by mechanical arm 102 Several lever arms put, while being flexibly controlled to several samplers 101, i.e. realize selectively to sampler Sample in 101 is burnt.

Further, refer to shown in Figure 15, described in this utility model embodiment, water trap 300 includes one-level eliminating water 310, two grades of water removal bodies 320 of mechanism and third class de-watering mechanism 330.Wherein, the one-level water removal body 310 and described two grades are removed Water dispenser structure 320 is in parallel, and using the one-level water removal body 310 after parallel connection and two grades of water removal bodies 320 as an entirety From the point of view of, its one end is connected with the burner, with the mixed gas produced after receiving the burner burning；The other end with The third class de-watering mechanism 330 connects so that the third class de-watering mechanism 330 respectively with 310, two grades of the one-level water removal body Water removal body 320 constitutes the structural relation of series connection, to realize receiving by the third class de-watering mechanism 330 removing through the one-level Water dispenser structure 310 and two grades of water removal bodies 320 are except the mixed gas after water process.

It should be noted that in this utility model embodiment, why water trap 300 is arranged to multistage water removing machine Structure, it is to carry out multistage eliminating water to mixed gas that one side purpose is, is sufficiently removed with the moisture guaranteed in mixed gas.Separately On the one hand by the one-level water removal body 310 and two grades of water removal bodies 320 by the way of being connected in parallel, so that from The mixed gas of burner output are carried out in the receiving terminal of the one-level water removal body 310 and two grades of water removal bodies 320 Mixing, buffering, are balanced with the airflow rate of the mixed gas to being exported by burner, it is to avoid the gaseous mixture bromhidrosis of output Flow excessive velocities and abundant eliminating water cannot be obtained.While the one-level water removal body 310 and two grades of eliminating waters after by parallel connection Mechanism 320, the mixed gas for being exported mix in the outfan of one-level water removal body 310 and two grades of water removal bodies 320, Ran Hou Carry out eliminating water again in flowing into third class de-watering mechanism 330, same principle, this is also caused by one-level water removal body 310 or two grades The airflow rate of mixed gas of the outfan output of water removal body 320 obtained effective buffering, balance, it is to avoid mixing for output After closing gas input third class de-watering mechanism, air velocity is too fast and cannot obtain abundant eliminating water.

Certainly, in this utility model embodiment, 320 phase of the one-level water removal body 310 and two grades of water removal bodies Parallel connection, and using the one-level water removal body 310 after parallel connection and two grades of water removal bodies 320 as one on the whole, its one end It is connected with the burner, with the mixed gas produced after receiving the burner burning；The other end is removed with the three-level Water dispenser structure 330 connects so that the third class de-watering mechanism 330 respectively with 310, two grades of water removal bodies of the one-level water removal body 320 structural relations for constituting series connection, this kind of connected mode can be defined as the connected mode 1 of water removal body.Certainly, the connection Mode 1 is only merely a kind of 310, two grades of connection sides between water removal body 320 and third class de-watering mechanism 330 of one-level water removal body Formula, this utility model embodiment are not limited to.

Words sentence is talked about, for other of 310, two grades of water removal bodies 320 of one-level water removal body and third class de-watering mechanism 330 connect Mode is connect, as long as the technique effect of effective eliminating water can be reached, this utility model embodiment is may also apply to.Such as, for letter Change structure design, this utility model embodiment can adopt the connected mode 2 of water removal body, directly mutually go here and there three water removal bodies Connection, i.e., 310, two grades of water removal bodies 320 of one-level water removal body and third class de-watering mechanism 330 are sequentially connected with, or in order to reduce into This, using the connected mode 3 of water removal body, removes third class de-watering mechanism, by two grades of water removal bodies 320 and one-level water removal body 310 are in series.Again or in order to further reduce manufacturing cost, using the connected mode 4 of water removal body, only removed from one-level Any one water removal body in 310, two grades of water removal bodies 320 of water dispenser structure and third class de-watering mechanism 330, and respectively with burner Connect with reduction apparatus, to reach the technical scheme of the technique effect of eliminating water, also within protection domain of the present utility model.Need It should be noted that 310, the two grades of water removal bodies 320 of one-level water removal body and third class de-watering mechanism in this utility model embodiment " one-level ", " two grades ", " three-level " in 330 is only to carry out coding label to several water removal bodies, to describe convenient description, Namely three water removal bodies are identical in this utility model embodiment.

That is, in this utility model embodiment, the one-level water removal body 310 can include：First glass physical Condenser 301, the first electronic cooling dehydrater 302 and the first adsorbent 303.Two grades of water removal bodies 320 can include：The Two glass physical condensers, the second electronic cooling dehydrater and the second adsorbent；The three-level purification mechanism 330 can include： 3rd glass physical condenser, the 3rd electronic cooling dehydrater and the 3rd adsorbent.

Due to 310, two grades of water removal bodies 320 of one-level water removal body and third class de-watering mechanism in this utility model embodiment 330 completely similarly hereinafter, below only by taking the connected mode 4 of above-mentioned water removal body as an example, to elaborate to this utility model, is placed in 1,2, the 3 non-detailed portion of connected mode of water removal body, and two grades of water removal bodies 320,330 self structures of third class de-watering mechanism Non- detailed portion, sees also the specific descriptions of one-level water removal body 310 in connected mode 4 in water removal body.

Specifically, Fig. 3 is referred to, for the one-level water removal body 310 in the connected mode 4 of water removal body, its Including the first glass physical condenser 301, the first electronic cooling (2 DEG C) dehydrater 302 and the first adsorbent 303.Wherein, exist In the water trap 300, first by 301 eliminating water of the first glass physical condenser, then by the first electronic cooling eliminating water 2 DEG C of eliminating waters of device, adsorb eliminating water finally by the first adsorbent 303.That is, first allowing will combustion by the first glass physical condenser 301 Product after burning carries out physics cooling by vapor is liquefied eliminating water, then further by the first electronic cooling dehydrater 302 Cooling under test gas simultaneously remove vapor again by by vapor liquefaction, moisture is complete finally by the first adsorbent 303 Absorb to reach the purpose of thorough eliminating water, to guarantee that the combustion product vapor is removed completely, so that moisture is completely eliminated to nitrogen The impact of the accuracy of assay.

Preferably, in the water trap 300 of this utility model embodiment offer, the first glass physical condenser 301 can be third generation double-tee glass condenser, be rapidly decreased to 2-3 degree Celsius from high temperature, will be contained in combustion product Then moisture extracted and separated by steam coagulation Cheng Shui.Complete first step eliminating water.It is noted that this practicality is new It is necessary for carry out the first step condensing eliminating water by the first glass physical condenser 301 in type embodiment, by high-temperature combustion product Efficiently significantly lower the temperature so as to be reduced to 2-3 DEG C, provide for follow-up 302 electronic cooling eliminating water of electronic cooling dehydrater then and remove Water condition.

Further, the first electronic cooling dehydrater 302 can be semiconductor cooler, using extraordinary quasiconductor material The P-N junction that material is constituted, formation thermocouple pair, generation Peltier effect (when two kinds of different metals are coupled together and pass to electric current, Have a joint to absorb heat, another joint heat release), i.e., a kind of New Refrigerating method freezed by unidirectional current.Electronic cooling effect Generation is exactly the principle by thermoelectricity, is the cooling piece of a monolithic, and it is made up of two panels potsherd, has N-type and p-type in the middle of which Semi-conducting material (Tellurobismuthite .), this semiconductor element on circuit be with cascade connection constitute.Semiconductor chilling plate Operation principle be：When one piece of N-type semiconductor material and one piece of p-type semiconductor material are coupled to galvanic couple pair, with copper sheet two Individual quasiconductor is coupled together.After connecting DC current in this circuit, the transfer of energy can be just produced, electric current is by N-type element The joint for flowing to p-type element absorbs heat, becomes cold end, flows to the joint release heat of N-type element by p-type element, becomes heat End.The heat in hot junction is taken away by various radiating modes, cold end can just keep lower temperature.The size of heat absorption and heat release is logical The element logarithm of the size and semi-conducting material N, P of overcurrent is determining.Galvanic couple is unified into by up to a hundred inside cooling piece Thermoelectric pile, to reach the effect for strengthening refrigeration, when heat load is zero, most strong refrigeration can reach 80 DEG C of temperature difference.Electronics The temperature difference amplitude of refrigeration is limited, and also further illustrates the necessity that the first step glass physical condenses eliminating water.

And then, due to the water removal phase for having had first two steps, most moisture have been removed by, so only needing to The first a small amount of adsorbent 303 can reach the effect for eliminating moisture well, so as to greatly save the usage amount of adsorbent, Overcome defect of traditional azotometer using a large amount of adsorbent high costs.Preferably, the absorption in this utility model embodiment Agent can be silica gel, activated alumina or activated carbon.

Finally it should be noted that by above-mentioned one-level water removal body 310, effectively ensuring through burner 200 Combustion product vapor afterwards is removed completely, to be completely eliminated impact of the moisture to the accuracy of nitrogen analysis, and can be with Direct analysis fluid sample, so as to substantially reduce the use of adsorbent, reduces operating cost.Certainly, as stated above, herein This utility model enters to the operation principle of water removal body only as a example by only including one-level water removal body 310 in water trap 300 Row description, during actual job, also can be by 310, two grades of water removal bodies 320 of one-level water removal body and third class de-watering mechanism 330 constitute water trap 300 to carry out efficient water-removing according to above-mentioned connected mode 1-3, and this utility model does not limit to, herein Also repeat no more.

Secondly, for reduction apparatus 400,

The reduction apparatus 400 include：Reduction furnace 402, part flow arrangement 401, non-dispersive IR line (NDIR) sensor 403.Wherein, the 302 direct phase of the electronic cooling (2 DEG C) dehydrater in the part flow arrangement 401 and higher level's water trap 300 Even, subsequently it is connected with the reduction furnace 402, is sensed by the NDIR between the reduction furnace 402 and the purifier 500 Device 403 is connected.

Specifically, part flow arrangement 401 described in this utility model embodiment is a kind of accurate gas diverter, is shunted Ratio is 1/35 or 1/80, reduces front Partial flow dilution gas into reduction furnace 402 in gas, saves copper reduction stove so as to reach The consumption of 402 reducing agent and the purpose of the cost of measurement every time is saved, meanwhile, built-in membrane disappears deimpurity interference.Specifically Ground, it is as N (nitrogen) burning conversions are into substantial amounts of gaseous NOx, too high for detector concentration, and reduced During can consume substantial amounts of reducing agent, therefore, will be from the burner 200 out and through three by part flow arrangement 401 Reduction detection after gaseous sample shunting after individual condensing units condensation eliminating water, remaining gas pass through adsorbent adsorption treatment heel row Remove.

The nitrogen oxides that burning is generated are spread using helium as carrier gas after the accurate gas diverter shunting Send, the nitrogen oxides are completely reduced as dinitrogen in 600 DEG C of copper reduction stoves, while the oxygen of excess is combined into oxidation by copper Copper.It is used for controlling the amount of oxygen needed for best combustion using non-dispersive IR line (NDIR) sensor, this can ensure that oxygen Minimum with the consumption of copper, highest can save 95% oxygen consumption.

(non-dispersive IR line) sensor 403 adopted in this utility model embodiment can be measured in mixed gas not With the concentration of gas.Asymmetric double atom and polyatomic gas have selection absorbability to infrared energy.This property is A kind of property that infrared active material has in itself, with uniqueness, such as the DNA of human body, everyone DNA is different, And will not change because of the change of any environmental factorss or condition, therefore material can be carried out according to this property qualitative and fixed Amount analysis.Different gas has different absorption spectrums, and absorption spectrum is made up of the spectral line in the range of certain frequency, is had Certain broadband, in broadband, the absorption intensity of each Frequency point is different.If infrared radiating light spectral limit includes tested The absorption bandses of gas are when infra-red radiation is by the air chamber full of tested gas, strong in the energy of corresponding frequencies infra-red radiation The decay for being actually taken up by gas and causing energy is spent, and gas concentration is bigger, energy attenuation is more severe, by analyzing attenuation It is finally inversed by the concentration of under test gas.

The detection method of non-dispersive IR line (NDIR) the principle sensor 403 can adopt spectral absorption calculus of finite differences Detection.Infrared light is sent through divided beams by light source, after reference channel and tested passage air chamber absorb, optical signal is detected Device carries out processing and amplifying after being converted into the signal of telecommunication.Because of the effect phase of the change to two paths of signals of such environmental effects and infrared light Together, difference detecting method eliminates the impact of these unstable factors, can truly reflect tested gas concentration information.

Again, for purifier 500,

Continuing with referring to Figure 15, purifier 500 described in this utility model embodiment include first class purification mechanism 510, Secondary purification mechanism 520 and three-level purification mechanism 530.Wherein, the first class purification mechanism 510 and the secondary purification mechanism 520 are in parallel, and using the first class purification mechanism 510 after parallel connection and the secondary purification mechanism 520 as one on the whole, its One end is connected with the reduction apparatus 400, with the gas produced after receiving the reduction apparatus reduction；The other end and the three-level Purification mechanism 530 connects so that the three-level purification mechanism 530 respectively with the first class purification mechanism 510, secondary purification mechanism 520 structural relations for constituting series connection, to realize receiving through the first class purification mechanism by the three-level purification mechanism 530 510 and 520 purified treatment of secondary purification mechanism after gas.

It should be noted that in this utility model embodiment, why purifier 500 is arranged to multistage purification machine Structure, it is to carry out multistage purification to gas that one side purpose is, to guarantee that mixed gas are sufficiently purified.On the other hand will be described First class purification mechanism 510 and the secondary purification mechanism 520 are by the way of being connected in parallel, so that from reduction apparatus 400 The mixed gas of output are carried out mixing, are delayed in the receiving terminal of the first class purification mechanism 510 and the secondary purification mechanism 520 Punching, is balanced with the airflow rate of the mixed gas to being exported by reduction apparatus 400, it is to avoid the mixed gas gas velocity of output Spend fast and cannot be fully purified.While the first class purification mechanism 510 and the secondary purification mechanism after by parallel connection 520, the mixed gas for being exported mix in the outfan of first class purification mechanism 510 and secondary purification mechanism 520, are then flowing into Purified in three-level purification mechanism 530 again, same principle, this is also caused by first class purification mechanism 510 or secondary purification The airflow rate of mixed gas of the outfan output of mechanism 520 obtained effective buffering, balance, it is to avoid the gaseous mixture for exporting After body input three-level purification mechanism 530, air velocity is too fast and cannot be fully purified.

Certainly, in this utility model embodiment, the first class purification mechanism 510 and 520 phase of secondary purification mechanism Parallel connection, and using the first class purification mechanism 510 after parallel connection and the secondary purification mechanism 520 as one on the whole, its one end It is connected with the reduction apparatus 400；The other end is connected with the three-level purification mechanism 530 so that the three-level purification mechanism 530 Constitute the structural relation connected respectively with the first class purification mechanism 510, secondary purification mechanism 520, can be by this kind of connection side Formula is defined as the connected mode 1 of purification mechanism.Certainly, the connected mode 1 is only merely first class purification mechanism 510, secondary purification A kind of connected mode between mechanism 520 and three-level purification mechanism 530, this utility model embodiment are not limited to.

Words sentence talk about, for first class purification mechanism 510, secondary purification mechanism 520 and three-level purification mechanism 530 other Connected mode, as long as the technique effect of effective purification can be reached, may also apply to this utility model embodiment.Such as, in order to Simplify structure design, this utility model embodiment can adopt the connected mode 2 of purification mechanism, directly mutually go here and there three purification mechanisms Connection, i.e., first class purification mechanism 510, secondary purification mechanism 520 and three-level purification mechanism 530 are sequentially connected with, or in order to reduce into This, using the connected mode 3 of purification mechanism, removes three-level purification mechanism, by secondary purification mechanism 520 and first class purification mechanism 510 are in series.It is again or in order to further reduce manufacturing cost, using the connected mode 4 of purification mechanism, only net from one-level Change mechanism 510, any one purification mechanism in secondary purification mechanism 520 and three-level purification mechanism 530, and respectively with reduction apparatus Connect with detection means, to reach the technical scheme of the technique effect of purification, also within protection domain of the present utility model.Need It should be noted that the first class purification mechanism 510, secondary purification mechanism 520 and three-level purification mechanism in this utility model embodiment " one-level ", " two grades ", " three-level " in 530 is only to carry out coding label to several purification mechanisms, to describe convenient description, Namely three purification mechanisms are identical in this utility model embodiment.

That is, in this utility model embodiment, the first class purification mechanism 510 can include：First adsorber 501 With the second adsorber 502.The secondary purification mechanism 520 can include：3rd adsorber and the 4th adsorber.The three-level is net Changing mechanism 530 can include：5th adsorber and the 6th adsorber.

Due to first class purification mechanism 510, secondary purification mechanism 520 and three-level purification mechanism in this utility model embodiment 530 completely similarly hereinafter, below only by taking the connected mode 4 in above-mentioned purification mechanism as an example, to elaborate to this utility model, puts Tie in 1,2, the 3 non-detailed portion of connected mode of purification mechanism, and secondary purification mechanism 520, three-level purification mechanism 530 itself The non-detailed portion of structure, sees also the specific descriptions of first class purification mechanism 510 in connected mode 4 in purification mechanism.

Specifically, continuing with referring to Fig. 3, for the first class purification mechanism 510 in the connected mode 4 of water purification mechanism Speech, which includes the first adsorber 501 and the second adsorber 502, wherein, first adsorber 501 directly with the non-dispersive Property infrared ray sensor 403 be connected, second adsorber 502 is connected with institute detection means 600.Specifically, through reduction After process, except nitrogen molecular in air-flow, also contain other impurities, it is therefore desirable to remove in reducing gas by purifier CO2/SO2, water and halogen, it is ensured that the degree of purity of nitrogen molecular, and then ensure the accurate reliability of test.Gas after reduction passes through First adsorber 501, can remove CO2/SO2 and halogen；Further, then by second adsorber 502, can be with Remove moisture removal.By two step adsorption processes, the removal of impurity can be reached, purify the purpose of gas nitrogen to be detected.Wherein, it is described First adsorber 501 possesses dehalogenation function, can eliminate halogen, effectively prevents the detection means described in halogen into subordinate and makes Into infringement, so as to reach the purpose for protecting the detection means.Preferably, first adsorber 501 is sulfur dioxide/bis- Carbonoxide halogen adsorber；And/or, second adsorber 502 is water adsorber.Certainly, as stated above, this reality herein With it is new only as a example by only including first class purification mechanism 510 in purifier 500 retouching to the operation principle of purification mechanism State, during actual job, also first class purification mechanism 510, secondary purification mechanism 520 and three-level purification mechanism 530 can be pressed Constitute purifier 500 to carry out high-efficient purification according to above-mentioned connected mode 1-3, this utility model does not limit to, herein also not Repeat again.

For finally, for detection means 600,

The detection means 600 includes：TCD thermal conductivity detector (TCD)s 601, mass flowmenter 602.Wherein, the TCD thermal conductivities inspection Survey device 601 to be directly connected with the second adsorber 502 described in upper level purifier 500, the mass flowmenter 602 directly connects After being connected on the TCD thermal conductivity detector (TCD)s 601, it is last device link of sample detection.

Remaining nitrogen in carrier gas stream is detected using the TCD thermal conductivity detector (TCD)s 601.TCD thermal conductivity detector (TCD)s 601 are also known as warm Lead pond or heated filament examines hot device, be a kind of the most frequently used detector of gas chromatography.The operation principle of the thermal conductivity detector (TCD) is base There are different thermal conductivities in gas with various, the sensing element of the detector is heated filament, such as tungsten filament, platinum filament, rhenium silk, and by heat Silk composition electric bridge, in the thermal conductivity detector (TCD) of the new azotometer, uses tungsten filament, also replaces tungsten filament with other heated filaments Can, heated filament has the characteristic that resistance is varied with temperature.When there is a constant dc to pass through the thermal conductivity detector (TCD), heated filament is added Heat.As the conduction of heat of carrier gas makes a part of heat of heated filament be taken away by carrier gas, a part passes to cell body.When heated filament is produced Heat and dissipated heat when reaching balance, hot-wire temperature is just stable in certain numerical value.Now, heated filament resistance is also stabilized in necessarily Numerical value.What is be passed through due to reference cell and measuring cell is all pure carrier gas, and same carrier gas has identical thermal conductivity, therefore the electricity of two-arm Resistance is identical, bridge balance, no signal output, and record system record is straight line.It is when there is sample to enter detector, pure Carrier gas flows through reference cell, and carrier gas carries component air-flow Jing measuring cells, due to carrier gas and component binary mixture to be measured Thermal conductivity is different with the thermal conductivity of pure carrier gas, heat dispersal situations in measuring cell thus change, in making reference cell and measuring cell hole Difference is generated between heater resistance value, electric bridge disequilibrium, detector have voltage signal to export, and monitor draws respective components Chromatographic peak.In carrier gas, the concentration of component to be measured is bigger, and in measuring cell, heat conductivity of gas changes more notable, temperature and resistance value Change also more notable, voltage signal is stronger.The voltage signal for now exporting is directly proportional to the concentration of sample, this exactly thermal conductivity inspection Survey the quantitative basis of device.

Therefore, when with the new azotometer measurement total nitrogen content, in the thermal conductivity detector (TCD), N2 volume contents Cause a kind of electronic measurement signal, by it, then through the independence correction of material, the nitrogen content in sample is just automatically counted Calculate, print and store.Specifically, the standard correction material adopts EDTA or carbamide, and only needs to regular calibration, nothing Must start shooting every time and make blank and standard correction.Possess it is simple to operate, the characteristics of be widely used.

The TCD thermal conductivity detector (TCD)s 601 do not destroy monitored component in detection process, are conducive to the collection of sample, or It is combined with other instruments.The TCD thermal conductivity detector (TCD)s 601 can meet the quantitative requirement of peak height in Industrial Analysis, be suitable for factory Control analysis.Meanwhile, TCD thermal conductivity detector (TCD)s 601 have a broad working range, measurable covering as little as ppm ranks, up to The analysis of the total nitrogen/protein of percentage concentration content.

The mass flowmenter 602 adopts thermal measuring method, i.e., how many by molecular mass that split molecule is taken away So as to measuring flow.Because being measured with thermal, will not because of gas temperature, pressure change so as to having influence on survey The result of amount.Mass flowmenter 602 is a more accurate, quick, reliable, efficient, stable, flexible flow measurement instrument. Mass flowmenter 602 can not control flow, and it can only detect the mass flow of liquid or gas, by analog voltage, electricity Stream or serial communication output flow value.

It should be added that, in this utility model embodiment, the concentration of the combustion gas oxygen being passed through is 99.995%, the concentration of the carrier gas stream helium being passed through is 99.99%, and the flow of the oxygen that is passed through and helium is by matter Amount stream controller is automatically controlled.Wherein, the mass flowmenter 602, is that one kind can be in detection while and can be controlled Instrument.Mass flowmenter 602 itself except measuring part, also with a solenoid valve or piezo electric valve, such quality Flow-control itself constitutes a closed loop system, for controlling the mass flow of fluid.The setting value of mass flowmenter 602 can be with There is provided by analog voltage, analog current, or computer, PLC.

Supplementary notes are needed further exist for, in this utility model embodiment, need to also be set for total nitrogen analysis described Built-in 40 DEG C ± 0.1 DEG C of Thermotank devices in standby, to guarantee system detector, diverter, gas collection system, gas circuit control etc. The temperature constant state of device, it is to avoid as the change of ambient temperature causes the change of gas flow path stability, improve analysis precision and Accuracy.

To sum up, the testing sample is after the physical treatment of early stage and automatic Weighing, in the vertical mechanical sample introduction Enter in the homogeneous combustion furnace of 1100 DEG C of high temperature from the sampler in the presence of arm, fully burn with oxygen, then pass through Combustion product and impurity are carried out cooling de-watering by " condensation of the three steps " device, then are shunted by the gas diverter is accurate Under test gas sample after burning, then helium is passed through as the current-carrying gas of the gaseous sample being diverted, send into together described 600 DEG C of copper reduction stoves, by nitrogen molecular Restore All out, meanwhile, the oxygen needed for best combustion is controlled using NDIR sensors Amount, this can ensure that the consumption of oxygen and copper is minimum, then passes through first adsorber and the second adsorber removes CO2/ SO2, halogen and water, are then passed through pure nitrogen in the TCD thermal conductivity detector (TCD)s, detect the concentration of nitrogen, finally by The mass flowmenter, is detected the mass flow of nitrogen, in conjunction with the nitrogen gas concn surveyed, is calculated by software for calculation automatically Total nitrogen content in the testing sample.

Based on the device embodiment that above-described embodiment is provided, Figure 10-14 are referred to, another embodiment of the present utility model is also It is there is provided a kind of embodiment of the method corresponding with device embodiment, specific as follows：

Another embodiment of the present utility model provides a kind of method for determining nitrogen content, specifically includes as follows：Step 1000, combustion step for burning to testing sample by burner, and produces mixed gas, the combustion step In, the ignition temperature of the burner is 1100 DEG C, and is constant temperature；Step 2000, reduction step, for by reduction apparatus The mixed gas are reduced, in the reduction step, the reduction temperature of the reduction apparatus is 600 DEG C, and be constant temperature； Step 3000, purifying step for being purified to the mixed gas after reduction by purifier, are gone the removal of impurity, are remained Residual air body；Wherein, the impurity at least include it is following in one kind：Water, carbon dioxide or halogen；Step 4000, detection step Suddenly, for being detected to the nitrogen content in the remaining gas by detection means.

Further, another embodiment of the present utility model also includes；Step 5000, sampling procedure, for by sample introduction Processing meanss are sampled, and obtain the testing sample, and the testing sample is sent in the way of vertical sample introduction the combustion Burnt in burning device.Step 6000, water removal phase, for carrying out through the mixed gas produced by the combustion step Except water process, to remove the moisture in the mixed gas.

Wherein, the water removal phase 6000 also includes following sub-step：Step 6001, the first eliminating water sub-step, will be described Mixed gas are sent into glass physical condenser and carry out an eliminating water；Step 6002, the second eliminating water sub-step will be through an eliminating water Mixed gas afterwards carry out secondary eliminating water in sending into electronic cooling dehydrater；The 3rd eliminating water sub-step of step 6003, will be through two Mixed gas after secondary eliminating water carry out three eliminating waters in sending into adsorbent.

Wherein, the purifying step also includes following sub-step：Step 3001, the first purification sub-step, after reduction Mixed gas are sent into sulfur dioxide/carbon dioxide halogen adsorber and carry out primary purification；Step 3002, the second purification sub-step, Mixed gas after primary purification are sent in adsorbent carries out double purification.

Wherein, the reduction step also includes following sub-step：Step 2001, shunts sub-step, for by shunting dress Put and mixed gas are shunted, to be diluted to the mixed gas；Step 2002, goes back atomic step, after shunting Gas is reduced in reduction furnace；Step 2003 flow control sub-step, is carried out for the flow to the oxygen in the reduction furnace Control.

Due to the method for the measure nitrogen content that another embodiment of the present utility model is provided, with above-mentioned device embodiment phase Correspondence, thus it is no longer excessive to embodiment of the method herein repeat, in embodiment of the method, non-detailed portion see device enforcement Example.

Although having been described for preferred embodiment of the present utility model, those skilled in the art once know substantially Creative concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to bag Include preferred embodiment and fall into the had altered of this utility model scope and change.

Obviously, those skilled in the art can carry out various changes and modification without deviating from this practicality to this utility model New spirit and scope.So, if it is of the present utility model these modification and modification belong to this utility model claim and Within the scope of its equivalent technologies, then this utility model is also intended to comprising these changes and modification.

Claims (9)

1. a kind of series and parallel water scavenging system, is applied to total nitrogen analytical equipment, and the total nitrogen analytical equipment includes burner, its It is characterised by, the series and parallel water scavenging system includes：

Water trap, the water trap include：

One-level water removal body；

Two grades of water removal bodies, the one-level water removal body and two grades of water removal bodies are in parallel, and the one end after parallel connection and institute Burner connection is stated, with the mixed gas produced after receiving the burner burning；

Third class de-watering mechanism, the third class de-watering mechanism with it is in parallel after the one-level water removal body and two grades of water removal bodies The other end connection so that the third class de-watering mechanism is in series with the one-level water removal body, two grades of water removal bodies respectively, with It is mixed after the one-level water removal body and two grades of water removal bodies remove water process by the third class de-watering authorities Close gas.

2. series and parallel water scavenging system as claimed in claim 1, it is characterised in that：

The burner is temperature control 1100 DEG C of combustion furnace.

3. series and parallel water scavenging system as claimed in claim 1, it is characterised in that；

The one-level water removal body includes：First glass physical condenser, the first electronic cooling dehydrater and the first adsorbent；Institute State the first glass physical condenser to be connected with the burner and the first electronic cooling dehydrater respectively；Described first inhales Attached dose is connected with the first electronic cooling dehydrater.

4. series and parallel water scavenging system as claimed in claim 3, it is characterised in that；

Two grades of water removal bodies include：Second glass physical condenser, the second electronic cooling dehydrater and the second adsorbent；Institute State the second glass physical condenser to be connected with the burner and the second electronic cooling dehydrater respectively；Described second inhales Attached dose is connected with the second electronic cooling dehydrater.

5. series and parallel water scavenging system as claimed in claim 4, it is characterised in that：

The third class de-watering mechanism includes：3rd glass physical condenser, the 3rd electronic cooling dehydrater and the 3rd adsorbent；Institute State the 3rd glass physical condenser respectively with first adsorbent, second adsorbent and the 3rd electronic cooling eliminating water Device connects；The 3rd electronic cooling dehydrater and the 3rd adsorbent connection.

6. series and parallel water scavenging system as claimed in claim 5, it is characterised in that

The first glass physical condenser is third generation double-tee glass condenser, and the first electronic cooling dehydrater is half Conductor refrigerator, first adsorbent are silica gel, activated alumina or activated carbon.

7. series and parallel water scavenging system as claimed in claim 6, it is characterised in that

The second glass physical condenser is third generation double-tee glass condenser, and the second electronic cooling dehydrater is half Conductor refrigerator, second adsorbent are silica gel, activated alumina or activated carbon.

8. series and parallel water scavenging system as claimed in claim 7, it is characterised in that

The 3rd glass physical condenser is third generation double-tee glass condenser, and the 3rd electronic cooling dehydrater is half Conductor refrigerator.

9. series and parallel water scavenging system as claimed in claim 8, it is characterised in that

3rd adsorbent is silica gel, activated alumina or activated carbon.