CN101571336B - Method and apparatus for determining gas compositions - Google Patents
Method and apparatus for determining gas compositions Download PDFInfo
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- CN101571336B CN101571336B CN 200910006599 CN200910006599A CN101571336B CN 101571336 B CN101571336 B CN 101571336B CN 200910006599 CN200910006599 CN 200910006599 CN 200910006599 A CN200910006599 A CN 200910006599A CN 101571336 B CN101571336 B CN 101571336B
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- 239000000203 mixture Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000002745 absorbent Effects 0.000 claims abstract description 12
- 239000002250 absorbent Substances 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 155
- 238000003825 pressing Methods 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 18
- 230000008676 import Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000000740 bleeding effect Effects 0.000 description 59
- 239000001257 hydrogen Substances 0.000 description 28
- 229910052739 hydrogen Inorganic materials 0.000 description 28
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 25
- 238000010586 diagram Methods 0.000 description 20
- 238000005086 pumping Methods 0.000 description 20
- 238000004458 analytical method Methods 0.000 description 17
- 230000009471 action Effects 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 230000006870 function Effects 0.000 description 10
- 230000033228 biological regulation Effects 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 8
- 239000000470 constituent Substances 0.000 description 7
- 239000006096 absorbing agent Substances 0.000 description 6
- 239000003595 mist Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- JQVALDCWTQRVQE-UHFFFAOYSA-N dilithium;dioxido(dioxo)chromium Chemical compound [Li+].[Li+].[O-][Cr]([O-])(=O)=O JQVALDCWTQRVQE-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- NMHMDUCCVHOJQI-UHFFFAOYSA-N lithium molybdate Chemical compound [Li+].[Li+].[O-][Mo]([O-])(=O)=O NMHMDUCCVHOJQI-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000519996 Teucrium chamaedrys Species 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The aim of the present invention is to provide an absorption refrigerating machine or absorption water cooling/heating device having an apparatus for judging compositions of a non-condensable gas simply and capable of deciding a necessary maintenance by itself. The residual non-condensable gas of a device for transferring heat by the absorption of an absorbent of the absorption refrigerating machine and the like is guided into a first seal container, a seal second container is vacuum, a pipeline for connecting the first container (1) and the second container (2) and having a orifice (3) is switched on to communicate the first container (1) and the second container (2) to measure a duration time until the pressures of the first container (1) and the second container (2).
Description
Technical field
The present invention relates to judge the gas componant decision method of composition of the on-condensible gases such as the hydrogen that remains in absorption refrigerating machine, absorption chilled and hot water apparatus, absorption heat pump etc. carry out heat by the absorption of absorbent the device of movement, air and the composition decision maker of gas.
Background technology
Absorption refrigerating machine is made of regenerator, condensed device, evaporimeter, absorber and pipe arrangement section of linking them etc., as absorption liquid (absorbent), can react with the metal of equipment component etc. in absorption cycle and produce hydrogen with lithium bromide water solution (the lithium bromide aqueous solution) etc. as cold-producing medium as water.In addition, although absorption refrigerating machine is in high vacuum state, be difficult to prevent that fully Atmospheric components (air) are from intrusions such as apertures.
Because these hydrogen or air remain in absorption refrigerating machine as on-condensible gas, thereby cause pressure rise in machine, result makes the hydraulic performance decline of refrigerator., by utilizing injector etc., on-condensible gas is extracted into the tank of bleeding from absorber for this reason, comes the hydraulic performance decline of freezing-inhibiting machine.In addition, also possess in absorption refrigerating machine by will the bleed on-condensible gas that stores in tank of automatic operation and be discharged to air extracting function outside machine.
Yet, if the resist in refrigerator (for example, lithium chromate, lithium molybdate, lithium nitrate etc.) quantity not sufficient or have defective in the air tight construction of refrigerator, in the time of can causing invading a large amount of on-condensible gases in refrigerator, if there is no the refrigerator of air extracting function, performance can decline to a great extent immediately, even if the refrigerator of air extracting function is arranged, also can discharge because of on-condensible gas frequently and causes decrease in efficiency.
When producing this unfavorable condition, analyze the composition of on-condensible gas and carry out correspondence at this point, namely, if the hydrogen composition is main, adjust the amount of the resist in refrigerator, if composition of air is main, as the defective of air tight construction, the be full of cracks of weld part is confirmed, repaired.In gas analysis in the past, the composition decision maker of gas has used gas chromatograph especially, but gas chromatograph device itself is difficult to more greatly conveyance, and therefore, the gas sample that must take out from the tank of bleeding of refrigerator is transported to the facility with analytical equipment.Therefore, need for a long time before the constituent analysis result of on-condensible gas obtaining, and be difficult in this case take suitable counter-measure for the emergent maintenance personal of this situation etc.In addition, therefore possible entrained air when sample gas is imported gas chromatograph can bring error to the air that should measure and the ratio between hydrogen.
Identical problem does not occur over just in absorption refrigerating machine, absorption chilled and hot water apparatus, absorption heat pump etc. utilize the absorption of absorbent carry out heat movement other the device in also can produce.
Patent documentation 1: Japanese kokai publication hei 11-118301
Summary of the invention
The present invention In view of the foregoing makes, its purpose is to provide a kind of composition decision method and device of gas, it can on-the-spot judge the composition that carries out the on-condensible gas of hydrogen residual in the device of movement of heat, air etc. by the absorption of the absorbent of absorption refrigerating machine, absorption chilled and hot water apparatus, absorption heat pump etc., and can promptly take suitable bad counter-measure for absorption refrigerating machine or absorption chilled and hot water apparatus.
In addition, the object of the invention is to provide a kind of composition decision maker of gas that has transportable size and can judge easily the composition of on-condensible gas.
In addition, the object of the present invention is to provide a kind of composition decision maker that possesses the gas that the composition that can judge easily on-condensible gas is arranged and can oneself judgement safeguard absorption refrigerating machine or the absorption chilled and hot water apparatus of necessity.
In order to reach above-mentioned purpose, the composition decision method that the first mode of the present invention is a kind of on-condensible gas, it is characterized in that, in will residual on-condensible gas imports to the first airtight container in the absorption of the absorbent by absorption refrigerating machine etc. is carried out the device of movement of heat, make airtight second container form vacuum, open connecting above-mentioned the first container and pipeline above-mentioned second container, that have throttle orifice, above-mentioned the first container and above-mentioned second container are communicated with, measure the pressure of above-mentioned the first container and the above-mentioned second container time till identical.
The following principle of analysis and utilization of the on-condensible gas composition in the present invention: because the molecular weight of gas can be according to composition and different, therefore the translational speed of gas has the difference principle under identical condition.If namely the composition of the hydrogen in on-condensible gas is more, fixed gas cognition moves to second container from the first container quickly, therefore the isostasy of the first container and second container time used is shorter, if the composition of the air in on-condensible gas is more, on-condensible gas will move to second container from the first container lentamente, therefore, the isostasy of the first container and second container time used is longer.
according to the present invention, the pressure (first pressing) of having obtained in advance when on-condensible gas is imported the first airtight container reaches the balanced time used with the pressure of the first container and second container, and the relation between the component ratio in analytical gas, therefore, pressure (first pressing) when detection imports to the first airtight container with on-condensible gas, the pipeline that then will have a throttle orifice is opened and is made on-condensible gas import to second container from the first container, and the pressure of measuring the first container and second container reaches the balanced time used, thereby can judge the component ratio of on-condensible gas.In the present invention, during the pressure that mentions the first container and second container identical (isostasy of the first container and second container), be not limited to reach identical pressure, also comprise the situation of the less pressure differential that reaches regulation.Name a person for a particular job about this and narrate in the back.
In addition, in the present invention, throttle orifice is not limited to fixed orifice, except variable orifice, the structure that flows that also comprises the structure (valve, pressure regulator valve, tubule etc.) that tightens flow and can limit, control gas is to estimate quantitatively the first pressing of fluid and the general name of the device of the relation that arrives the time till all pressing.
In the present invention, when on-condensible gas is imported the first container, preferably, after making the first container and second container form vacuum together, on-condensible gas is imported the first container.
The composition decision method that the second mode of the present invention is a kind of on-condensible gas, it is characterized in that, make gas-tight container take out the formation vacuum, the device that carries out the movement of heat for the absorption of the absorbent by absorption refrigerating machine etc., the container and the pipeline above-mentioned gas-tight container and that have throttle orifice that connect in the residual device that on-condensible gas arranged are opened, container and above-mentioned gas-tight container in said apparatus are communicated with, the time till the container in the measurement said apparatus is identical with the pressure of above-mentioned gas-tight container.
The second mode of the present invention has been omitted the first container in the first mode of the present invention, and the container in the devices such as the tank of bleeding of absorption refrigerating machine is used as the container suitable with the first container.
Third Way of the present invention is a kind of composition decision maker of gas, it is characterized in that possessing: airtight and the first container and second container that can be connected with vavuum pump respectively; Connect pipe arrangement above-mentioned the first container and above-mentioned second container, that have open and close valve and throttle orifice; And measure above-mentioned the first container pressure piezometry mechanism and measure the piezometry mechanism of pressure of above-mentioned second container or the pressure reduction of measuring the pressure reduction between above-mentioned the first container and above-mentioned second container is measured mechanism.
According to the present invention, the absorption of the absorbent by absorption refrigerating machine etc. is carried out in the device of movement of heat, residual on-condensible gas imports the first airtight container, and make airtight second container form vacuum, and open and connect the first container and pipeline second container, that have throttle orifice is communicated with the first container and second container, the pressure of measuring the first container and second container reaches the balanced time used, judges thus the component ratio of on-condensible gas.
Cubic formula of the present invention is a kind of composition decision maker of gas, it is characterized in that, possesses: the gas-tight container that can be connected with vavuum pump; Pipe arrangement with open and close valve and throttle orifice, this pipe arrangement can connect above-mentioned gas-tight container and the absorption of absorbent by absorption refrigerating machine etc. and carry out the residual container that on-condensible gas is arranged among the device of movement of heat; And piezometry mechanism, measure respectively the pressure of above-mentioned gas-tight container and from the pressure of the pipe arrangement of the residual vessel side of the on-condensible gas of above-mentioned throttle orifice.
Cubic formula of the present invention has been omitted the first container in Third Way of the present invention, and the container in the devices such as the tank of bleeding of absorption refrigerating machine is used as the container suitable with the first container.
Optimal way of the present invention is a kind of composition decision maker of gas, it is characterized in that, also possesses control part, above-mentioned control part stored various pressure and reach all time of advent used till pressing and the component ratio of gas between relation, and control the switching of above-mentioned open and close valve, take the detected pressures of above-mentioned pressure detection mechanism, automatically the component ratio of measurement gas.
In addition, control part automatically proceed to measure reach all press the time used till, based on all the pressure time determines that component ratio is to be waited by attendant to utilize chart shown in Figure 2 (aftermentioned) manually to carry out.
The 5th mode of the present invention is absorption refrigerating machine or the absorption chilled and hot water apparatus that possesses the composition decision maker of above-mentioned gas.
The 6th mode of the present invention is the air extractor that possesses the composition decision maker of above-mentioned gas.
The present invention plays the following effect of enumerating.
1) midget plant that utilizes simple method and can transport can on-the-spot carry out the constituent analysis of on-condensible gas, and can promptly take suitable bad counter-measure for absorption refrigerating machine or absorption chilled and hot water apparatus.
2) do not need to possess the equipment such as gas chromatograph, the analysis that has solved external agency relies on, and therefore can reduce the expense that maintenance produces.
3) can judge the necessity of maintenance due to self, therefore can prevent absorption refrigerating machine or absorption chilled and hot water apparatus continuous running under the state of inefficiency.
Description of drawings
Fig. 1 means the skeleton diagram of the composition decision maker of the gas that the first embodiment of the present invention relates to.
Fig. 2 means for the various concentration under drying regime, the H of pressure
2Gas and N
2The mist of gas is obtained the figure of the result of time of the first pressing of the first container and mensuration and the relation between the hydrogen concentration in analytical gas by test.
Fig. 3 adds to the tank of bleeding by prototype the figure that result and the result under before drying regime of the situation of steam compare to mist.
Fig. 4 means the skeleton diagram that the variation of filter or drier is installed again on the composition decision maker of the gas that the first embodiment of the present invention relates to.
Fig. 5 means the skeleton diagram that the embodiment of pressure regulator valve and vavuum pump is installed again on the composition decision maker of the gas that the first embodiment of the present invention relates to.
Fig. 6 means the control part that the composition decision maker integral body of controlling gas is set and the skeleton diagram of automatically analyzing the embodiment of operation.
Fig. 7 means the skeleton diagram of the composition decision maker of the gas that the second embodiment of the present invention relates to.
Fig. 8 means the skeleton diagram of the composition decision maker of the gas that the 3rd embodiment of the present invention relates to.
Fig. 9 means the skeleton diagram of an example of the air extractor that possesses the discharge function in the tank of bleeding.
Figure 10 means the skeleton diagram that the present invention is applicable to the embodiment in air extractor shown in Figure 9.
Figure 11 means to possess the skeleton diagram of other examples that the tank of bleeding is discharged from the air extractor of function.
Figure 12 means the skeleton diagram that the present invention is applicable to the embodiment in air extractor shown in Figure 11.
Symbol description is as follows:
1... the first container; 2... second container; 3... throttle orifice; 5... pressure sensor; 6... vavuum pump; 7... pipe arrangement; The tank 8... bleed (purge tank); 10... control part; 11... refrigerator (refrigerator main body); 12... control part; 13... filter; 14... drier; 15... pressure regulator valve; 16... vavuum pump; 20... air extractor; 21... vavuum pump; 22... container; 23... pipe arrangement; 24... pipe arrangement; 25... control part; 26... vacuum switch; 28... pipe arrangement; 29... pipe arrangement; V1... valve; V2, V3... valve (magnetic valve); V4... vacuum pumping valve; V5... three-way valve (three-way solenoid valve); V11, V13... magnetic valve; V12, V14... three-way solenoid valve.
The specific embodiment
Below, the gas componant decision method that explanation the present invention relates to reference to Fig. 1～Figure 12 and the embodiment of device.In addition, in Fig. 1 to Figure 12, for identical or suitable inscape, also description thereof is omitted for the symbol that mark is identical.
Fig. 1 means the skeleton diagram of the composition decision maker of the gas that the first embodiment of the present invention relates to.As shown in Figure 1, the composition decision maker of gas possesses two airtight containers, namely, the first container (tank A) 1 and second container (tank B) 2.And between the first container 1 and second container 2, pipe arrangement 4 connections of being connected with throttle orifice by having valve V3 to be opened/closed.In the present embodiment, the same container of the first container 1 and second container 2 use capacity 10 liters (L) (if consider accuracy and the conveyance of measurement, can say that the size of the first container 1 and second container 2 is proper at several liters～20 lift degree).Valve V3 is preferably the valve that can open and close as quickly as possible, can use ball valve or magnetic valve.In addition, throttle orifice 3 uses the hole of paths in order to suppress the error that the impact because of pipe arrangement or valve produces, and makes in the movement of gas between container and spend time enough.In the present embodiment, the diameter of throttle orifice 3 is 0.3mm.
In addition, in the first container 1 and second container 2, also be provided with separately pressure sensor 5 as the pressure measxurement mechanism that measure to grasp pressure in container.
As shown in Figure 1, be connected with vavuum pump (VP) 6 on the composition decision maker of gas.Namely, the first container 1 is connected with second container and is connected with vavuum pump 6 via the pipe arrangement 7 that possesses valve V1 to be opened/closed, V2 respectively.In addition, in Fig. 1, be the example of split although the composition decision maker of vavuum pump itself and gas is shown, vavuum pump also can be integrated with the composition decision maker of gas.
The composition decision maker of the gas that so consists of is used under the tank of bleeding (purge tank) 8 states that are connected of the first container 1 via vacuum pumping valve V4 and refrigerator.
Then, the analysis sequence of the composition decision maker of gas shown in Figure 1 described.
At first, open valve V1, V2, shut off valve V4 makes vavuum pump 6 starts, and the first container 1 and second container 2 are vacuumized.After with the first container 1 and second container 2 vacuum pumpings, shut off valve V1, V2, V3.Then, open vacuum pumping valve V4, in the tank 8 of bleeding, on-condensible gas imports the first container 1, closes afterwards vacuum pumping valve V4.Under this state, open the valve V3 between the first container 1 and second container 2, be measured to the time till the equalization of pressure of the first container 1 and second container 2, thereby carry out the analysis of gas componant.
Reach time till balanced and the relation between the hydrogen concentration in analytical gas owing to obtaining in advance the pressure of opening the first container 1 before valve V3 and the pressure of the first container 1 and second container 2, therefore know the composition of on-condensible gas.If the constituent analysis result is judged the hydrogen composition in on-condensible gas for example and is the low hydrogeneous rate of regulation, judge that there is defective in the air tight construction of refrigerator, thus specific Gas leak position.In addition, if judge that the hydrogen composition in on-condensible gas for example is the high hydrogeneous rate of regulation, be judged as the deficiency of resist (for example, lithium chromate, lithium molybdate, lithium nitrate etc.), safeguard to append the mode of throwing in resist.If the hydrogen component content in on-condensible gas is in the middle of this, namely, judge that the hydrogen composition in on-condensible gas surpasses the low hydrogeneous rate of regulation, and lower than the high hydrogeneous rate of stipulating, can't with reason specific which is, take again residual on-condensible gas to be analyzed after tank (purgetank) the 8 interior vacuum pumpings of bleeding, or consider that the possibility ground of the reason (leakage of gas and the deficiency of resist) of two aspects safeguards.
According to above-mentioned analysis sequence, need to obtain in advance the pressure of opening the first container 1 before valve V3 and the pressure of the first container 1 and second container 2 and reach time till balanced and the relation between the hydrogen concentration in analytical gas.
Fig. 2 be with transverse axis as the pressure of opening the first container (tank A) 1 before valve V3, the longitudinal axis is reached time till equilibrium as the pressure of the first container 1 and second container 2, for the H of dry (dry) state
2Gas and N
2The mist of gas makes hydrogen concentration from 0% to 100% carry out various variation and the chart of testing resulting result is shown.In Fig. 2, be first pressing (kPa abs) with the pressure representative of opening the first container 1 before valve V3, it is the time of advent (sec) that the pressure of the first container 1 and second container 2 is reached balanced time representation used.The first container 1 and second container 2 all use the container of 10L, and what throttle orifice 3 used is the hole of 0.3mm diameter.
In Fig. 2, be 0[sec the time of advent of first pressing 1kPa], this be because: the time of measuring not is the time that reaches complete equilibrium, but the moving source of gas and the differential pressure between moving target reach the 1kPa time used.In this manual, in the situation that there is no special suggestion, mention all press in, be not confined to reach fully unified pressure, the situation that also comprises the less pressure differential that reaches regulation, but need following two aspects are in harmonious proportion mutually, namely, one side when the actual measurement on-condensible gas to measure to the pressure differential of what degree; On the other hand in mensuration process in advance, in order to obtain the suitable data of Fig. 2 to measure to the pressure differential of what degree.
If pressure reduction is less and near 0, the power that gas is moved is less, therefore can produce error because of external interference.Therefore,, can more correctly and stably measure as benchmark by the time till the less pressure differential that will reach regulation.
Here, there is cold-producing medium (water) in the tank of bleeding due to the refrigerator of reality, therefore, also contains steam in the gas of bleeding.Fig. 3 uses above-mentioned H
2Gas and N
2The mist of gas is enclosed in the tank of bleeding of prototype, and adds in mist steam to compare with the result under before drying regime with the situation that reaches moist (wet) state figure.Hydrogen concentration is in zone lower below 50%, both results almost do not have difference, and in hydrogen concentration higher zone, poorly more or less become large (can consider the little cause because the difference of the molecular weight of nitrogen and steam is compared with the difference of the molecular weight of steam and hydrogen).
In the present embodiment, therefore the problem owing to not having to use is used for figure shown in Figure 2 the constituent analysis of on-condensible gas.
In Fig. 2 and experiment shown in Figure 3, although what use is not air but nitrogen mainly contains aerobic except nitrogen in the air of reality.Wherein, because the molecular weight of oxygen is compared more molecular weight near nitrogen with the molecular weight of hydrogen, therefore, even if use the result of Fig. 2 as present embodiment, also or can judge fully.Can the poor of several seconds occur with the experimental result of using nitrogen in the experiment of using actual air, but because Measuring Time reaches near hundred seconds even hundreds of seconds, therefore the difference of this degree does not have problems.
In addition, also can obtain in advance the pressure (first pressing) of opening the first container 1 before valve V3 and the pressure of the first container 1 and second container 2 with the air of reality or the gas that contains steam and reach relation between hydrogen concentration in balanced time used (time of advent) and analytical gas.
In the present embodiment, although be provided with the sensor (pressure measxurement mechanism) 5 of the pressure separately of measuring the first container 1 and second container 2, as long as but can measure the first pressing of the first container and the pressure differential of two containers, therefore also can constitute, only on the first container, pressure sensor is set, and the pressure sensor that differential pressure measurement mechanism take the differential pressure pick-up of the differential pressure of measuring two containers as representative replaces second container is set.Namely, can constitute, pressure sensor 5 only is arranged on the first container 1, and the differential pressure measurement mechanism take the differential pressure pick-up of the differential pressure of measuring the first container 1 and second container 2 as representative is set.
In the present embodiment, only be provided with vacuum pumping valve V4 bleeding of refrigerator between tank 8 and the first container 1, yet by between vacuum pumping valve V4 and the first container 1, pressure regulator valve being set, the pressure that imports to the gas of bleeding in the first container 1 can be controlled to be the force value of regulation.So, relation shown in Figure 2 need not to obtain in advance with various force value, as long as obtain for the force value of the regulation of wish adjustment (regulate).In addition, in the situation that pressure regulator valve is set, also between pressure regulator valve and the first container 1, valve be set.
Fig. 4 means the skeleton diagram that the variation of filter and drier is set again on the composition decision maker of the gas that the first embodiment of the present invention relates to.
For the time that pressure is reached equilibrium remained on more than tens of seconds, must significantly tighten the gas flow of throttle orifice.Therefore, the stream diameter footpath of throttle orifice becomes very little.On the other hand, sometimes also sneaked into the tiny rubbish particle such as dust, iron filings (below, claim rubbish) the on-condensible gas of discharging from the tank of bleeding.Therefore, throttle orifice might be blocked.Before arriving throttle orifice at this rubbish, it is caught, as shown in Figure 4, filter 13 can be set at the entrance side of the first container 1.Thereby can prevent the obstruction of throttle orifice 3, carry out stable composition and judge.
In addition, in the situation that use mist under drying regime shown in Figure 2 all press relation between time and component ratio, as shown in Figure 4, drier hygroscopic materials such as () molecular sieves 14 can be set at the entrance side of the first container 1 also.Thus, gas is in drying regime, has therefore improved the precision that composition is judged.Can also use filter and the integrated Filter dryer of drier.
In addition, also may sneak into rubbish owing to having considered in the first container, therefore as shown in phantom in Figure 4, can be between the first container 1 and second container 2, and in the front of throttle orifice 3, filter 13 is set.At this moment, the relation between time and component ratio of all pressing that Fig. 2 is suitable is preferably the relation under filter state of being provided with of obtaining in advance.In this case, also can use Filter dryer.
In addition, the setting position of filter and drier can be separated.Particularly, drier can be arranged on the entrance side of the first container 1, and filter can be arranged on the front of throttle orifice 3.Like this, only have dry on-condensible gas to be imported into the first container 1, and remove rubbish etc. by the filter that the front at throttle orifice 3 arranges, therefore can further improve the stability of measurement, the precision of judgement.
The throttle orifice that uses in the present invention is less because of diameter, therefore easily causes obstruction, therefore the following anti-clogging countermeasure of preferred enforcement.
The throttle orifice contact pipe arrangement that 1) will link the first container 1 and second container 2 is arranged on than the first container 1 high position, and rubbish is stayed in the first container 1.Wherein, make the structure that can clean the rubbish in the first container 1.
2) at the first vessel side of the throttle orifice contact pipe arrangement that links the first container 1 and second container 2, baffle plate is set rubbish is stayed the first vessel side.Wherein, make the structure that can clean the rubbish of the first container 1 side.
3) primary side at throttle orifice arranges the mesh filter less than throttle orifice diameter.Wherein, even if selected filter slightly has the obstruction also can be to the filter of capacity that passes through to bring impact of gas.
4) by a plurality of throttle orifices are set, can confirm with other throttle orifice the result of measuring with a throttle orifice, thereby can confirm the unfavorable conditions such as obstruction of throttle orifice.
5) by throttle orifice being made the structure of being convenient to remove, can easily carry out cleaning, inspection, replacing to throttle orifice.
6) when carrying out automatic analysis, detecting in the situation that has surpassed stipulated time (for example, being equivalent to hydrogen 0%), send the alarm (arrange in the embodiment of filter in the front of throttle orifice, be the plugged filter alarm) that throttle orifice stops up.
Fig. 5 means the skeleton diagram that the variation of pressure regulator valve and vavuum pump is installed again on the composition decision maker of the gas that the first embodiment of the present invention relates to.As shown in Figure 5, in the present embodiment, between vacuum pumping valve V4 and the first container 1, pressure regulator valve (RE) 15 is set, vavuum pump (VP) 16 is set between vacuum pumping valve V4 and pressure regulator valve 15.The suction side of vavuum pump 16 is connected with the tank side of bleeding, and the exhaust side of vavuum pump 16 is connected with the pressure regulator valve side.By this structure, be discharged to the first container 1 by vavuum pump 16 gas of bleeding from the tank 8 of bleeding, thus, more than the pressure of the first container 1 can being brought up to the pressure of the tank 8 of bleeding.Usually, the capacity of the tank 8 of bleeding is 20 liters～100 liters front and back, and is larger than the first container 1, therefore, the first container 1 can be set as higher pressure.As can be seen from Figure 2, the first pressing of the first container 1 is higher to a certain extent, and the difference of the time of advent that causes because of the difference of hydrogen concentration is just larger, therefore, can judge more exactly.In addition, the vavuum pump 16 between vacuum pumping valve V4 and pressure regulator valve 15 can share with vavuum pump 6 by transfer valve etc. is set.
in addition, in the embodiment of Fig. 1～shown in Figure 5, the first container (tank A) 1 and second container (tank B) 2 are made identical capacity, as long as but pre-determine capacity, can obtain relation shown in Figure 2, therefore also can not constitute identical capacity, the diameter of throttle orifice also is not limited to 0.3mm, if but according to setting in the mode more than about 100 seconds the time of advent that the zone of (with regard to the difference that reaches all the pressure differential of pressing for more than 1kPa) more than just being pressed in 2kPa arrives till all pressing, measure error diminishes, can grasp fully component ratio.In addition, all press the mode that be controlled at about 500 seconds the time of advent used to set if arrive according to the zone that just is pressed in (similarly below 9kPa) below 10kPa, just can complete analysis in the short time about 10 minutes.
Fig. 6 means the control part that the composition decision maker integral body of controlling gas is set and the skeleton diagram of automatically analyzing the embodiment of operation.As shown in Figure 6, the composition decision maker of gas possesses control part 10, and each equipment is controlled by control part 10.Control part 10 possesses microcomputer, and pre-stored in this microcomputer have a relation shown in Figure 2.In addition, the measured signal of pressure sensor 5 is sent to control part 10.Valve V1, V2, V3 are made of magnetic valve, and can carry out open and close controlling by control part 10.In addition, control part 10 running that can also control vavuum pump 6 stops.Control part 10 possesses action button 10a and display part 10b.
In the composition decision maker of gas shown in Figure 6, be connected with the tank 8 of bleeding of refrigerator if will install via vacuum pumping valve V4, and starting device, can automatically open valve V1, V2, starting vavuum pump 6 carries out the first container 1 and second container 2 are vacuumized.Then, if control part 10 is confirmed to vacuumize thoroughly to complete by pressure sensor 5, stop vavuum pump 6, make valve V1, V2, V3 be in the turning off standby state.Here, if open vacuum pumping valve V4, the gas of bleeding imports the first container 1 and again closes vacuum pumping valve V4, and again makes the device starting, control part 10 is opened valve V3, measures the first container 1 and second container 2 based on the detected value of pressure sensor 5 and reaches and all press the time used.Then, based on the time of measuring and the relation that is stored in the Fig. 2 in control part 10, judge hydrogen concentration, and this be the results are shown on the display part 10b of control part 10.In addition, in the situation that be provided with pressure regulator valve, be positioned at vavuum pump in front of it, transfer valve etc., control part 10 also can be controlled them.
In addition, control part 10 automatically perform measure the first container 1 and second container 2 reach all press the time used till, and determine that based on equal pressure time this work of component ratio can manually be carried out by chart shown in Figure 2 by the attendant.
Fig. 7 means the skeleton diagram of the composition decision maker of the gas that the second embodiment of the present invention relates to.The composition decision maker of the gas of the second embodiment is based on the composition decision maker of the gas of the first embodiment and therefrom omitted the first container 1, and the tank self of bleeding of refrigerator is used as the container that is equivalent to the first container.In the present embodiment, also omitted valve V1 except the first container 1, pressure sensor 5 is arranged between vacuum pumping valve V4 and valve V3, measures the pressure of the tank side of bleeding.In addition, between valve V3 and pressure sensor 5, be connected with an end of the pipe arrangement 7 that possesses valve V5, the other end of pipe arrangement 7 is connected with vavuum pump 6.In the present embodiment, second container (tank B) is described as gas-tight container 2.
Then, the analysis sequence of the composition decision maker of gas shown in Figure 7 described.
At first, shut off valve V5, shut off valve V3 opens valve V2, after utilizing vavuum pump 6 with gas-tight container 2 vacuum pumpings, shut off valve V2.Then, open vacuum pumping valve V4, be at pressure sensor 5 under the state of the pressure that can measure the tank 8 of bleeding, open valve V3, measure bleed tank 8 and the pressure of gas-tight container 2 and reach time till balanced.Owing to having obtained in advance the pressure (first pressing) of opening the tank 8 of bleeding before valve V3 and the relation between the hydrogen concentration in the time of measuring and analytical gas, therefore, can come thus to determine the composition of on-condensible gas.It is the same with the first embodiment that ratio by the hydrogen composition changes this situation of maintenance content.In addition, Yi Bian continuing the running of refrigerator, Yi Bian analyze in the situation of on-condensible gas, need to temporarily stop the bleeding from absorber of being undertaken by jet pump etc.After measure finishing, open valve V5, the on-condensible gas that utilizes vavuum pump 6 will bleed in tank 8 is discharged.
Although need to obtain in advance as illustrated in fig. 2 the pressure (first pressing) of opening the tank 8 of bleeding before valve V3 and the relation between the hydrogen concentration in the time of measuring and analytical gas, but the tank of bleeding of refrigerator has many types because machine is different, therefore, as long as obtain relation shown in Figure 2 based on the capacity of each tank of bleeding in advance.In addition, if corresponding machine is more, must prepare a plurality of relations shown in Figure 2, therefore, preferably, the control part 10 that illustrates in the first embodiment is set, come the relation of the hydrogen concentration in pre-stored a plurality of analytical gas.
In this wise, owing to having omitted the first container, can make analytical equipment miniaturization more, thereby can improve handlability.
In addition, in the present embodiment, also can be the same with embodiment shown in Figure 4, filter and drier are set.At this moment, preferably from bleeding tank 8 towards the pipeline of gas-tight container (tank B) 2 midway, particularly the position, front of throttle orifice 3 arranges filter and drier.
Fig. 8 means the skeleton diagram of the composition decision maker of the gas that the 3rd embodiment of the present invention relates to.
Also there is the device that possesses the air extracting function that the on-condensible gas in the tank of bleeding is discharged automatically among refrigerator.Be typically, possess vavuum pump in the tank of bleeding, starting vavuum pump when the pressure rise of the tank of bleeding is above to a certain extent, or start at regular intervals vavuum pump, the on-condensible gas in the tank of bleeding is discharged to outside machine.
Fig. 8 represents the present invention is applicable to possess example in the refrigerator of this air extracting function, as the second embodiment, possesses the composition decision maker of the gas of the form of having omitted the first container 1.The composition decision maker part that the composition decision maker of the gas of the 3rd embodiment is different from the gas of the second embodiment is, has omitted vacuum pumping pump V4, and pressure sensor 5 is set directly on the tank 8 of bleeding.Namely, in the 3rd embodiment, also omitted valve V1 except the first container 1, and pressure sensor 5 be arranged on the tank 8 of bleeding.In addition, be provided with three-way solenoid valve V5 between tank 8 and magnetic valve V3 bleeding.The interface of three-way solenoid valve V5 is connected with vacuum valve 6.In addition, three-way solenoid valve V5 can be replaced to two two to magnetic valve 2.Also that second container (tank B) is illustrated as gas-tight container 2 in the 3rd embodiment.
The composition decision maker of gas shown in Figure 8 is controlled by the control device 12 of controlling refrigerator (refrigerator main body) 11, and analysis sequence is as described below.
When common running, three-way solenoid valve V5 is switched to and makes gas-tight container 2 be connected the direction that connects with vacuum valve, and the tank 8 of bleeding is cut off with the analytical equipment side.If the pressure that is detected in the tank 8 of bleeding by pressure sensor 5 surpasses setting, begin the action of bleeding, carry out simultaneously the constituent analysis of on-condensible gas.At first, shut electromagnetic valve V3 switches to three-way solenoid valve V5 the tank 8 of only bleeding and is connected with gas-tight container 2.Then, after opening magnetic valve V2 and utilizing vacuum valve 6 with gas-tight container 2 vacuum pumpings, shut electromagnetic valve V2.Then, temporarily stop by jet pump etc. carry out from the bleeding of absorber, open magnetic valve V3 under this state, measure bleed tank 8 and gas-tight container 2 and reach time till all pressing.Owing to having obtained in advance the pressure (first pressing) of opening the tank 8 of bleeding before magnetic valve V3 and the relation between the hydrogen concentration in the time of measuring and analytical gas, and be stored in the control part 12 of refrigerator 11, therefore, by comparing with it to analyze the composition of on-condensible gas.
In addition, judge in the process of needed time at composition, because the rate of air sucked in required from absorber is very little, therefore, judge even if carry out composition under the state of not bleeding with stopping, also can enough precision judge.In this case, do not need for once stopping air-extractor, program, therefore device is easier.
After measure finishing, three-way solenoid valve V5 is switched to make bleed tank 8 and the direction that vavuum pump 6 is connected, utilize the vavuum pump 6 interior on-condensible gas discharge of tank 8 of bleeding.Then, again carry out bleeding from absorber by jet pump.After finishing exhaust, stop vavuum pump 6, and three-way solenoid valve V5 is switched to as original make gas-tight container 2 be connected the direction that connects with vavuum pump.The component ratio of measured on-condensible gas is stored in control part 12 as resume, when component ratio produces larger variations, just judges that what has occured is abnormal etc., can grasp when safeguarding in the variation of state of refrigerator and be applied in a flexible way.In addition, in the situations such as running of remote monitoring refrigerator, monitor the variation of component ratio constantly, judge thus the necessity of maintenance.
In addition; the number of times of the discharging operation of bleeding of control part 12 record unit times of refrigerator 11 (for example passing by a day); be judged as when setting is above when this number of times and occur extremely; based on the component ratio of at this moment condensing gas, just can send the airtight abnormal or not enough abnormal alarm of resist of refrigerator.
In addition, in the present embodiment, although the primary components analysis is namely carried out in the action of often once bleeding, also can carry out arbitrarily constituent analysis constantly by operating in of attendant etc.In addition, for the record situation of number of times of action within the unit interval of bleeding, also can only surpass setting at this number of times, be judged as and occur carrying out constituent analysis in abnormal situation.
In addition, in the present embodiment, as the composition decision maker of gas, although the device identical with the second embodiment has been installed, also the device identical with the first embodiment that also possesses the first container (tank A) 1 can be installed on refrigerator.
Above embodiment is to be illustrated as an example of absorption refrigerating machine example, but as the form of absorption refrigerating machine, and alone, double-purpose etc. is arranged, and also have in addition and the many types such as stream, crossfire, and the present invention can be suitable for any form.In addition, also not necessarily absorption refrigerating machine be to be confined to, absorption-type cold-hot water dispenser, absorption heat pump etc. also gone for.
Then, the embodiment that is applicable to air extractor for the composition decision maker with gas of the present invention describes.
Do not have at existing absorption refrigerating machine itself in the situations such as Automatic-bleeding function, for residual on-condensible gas in the tank of bleeding is discharged to outside machine, used to possess the air extractor of on-condensible gas from the tank discharge function of bleeding.
Fig. 9 means the skeleton diagram of an example of the air extractor that possesses the function of discharging on-condensible gas from the tank of bleeding.As shown in Figure 9, air extractor 20 possesses: oily rotary vacuum pump (VP) 21, in the situation that the container 22 that oil is collected from vavuum pump 21 adverse currents, connect bleed tank 8 and the container 22 and possess pipe arrangement 23, connecting container 22 and the vavuum pump 21 of magnetic valve V11 and possess the pipe arrangement 24 of three-way solenoid valve V12 and the control part 25 of controlling vavuum pump 21 and two magnetic valve V11, V12 such as refrigerator.In addition, also be provided with the vacuum switch 26 that start occurs on container 22 when the pressure in container 22 reaches the vacuum of regulation.In addition, be provided with open and close valve V10 between tank 8 and air extractor 20 bleeding.
The air extractor that consists of as shown in Figure 9 with the tank connected state of bleeding such as refrigerator under action as follows.
At first, shut electromagnetic valve V11 switches to three-way solenoid valve V12 and makes the air-breathing to atmosphere opening of vavuum pump 21, carries out the warm-operation of vavuum pump 21.After warm-operation finishes, three-way solenoid valve V12 is switched to the direction that container 22 is connected with vavuum pump connect, be in enough vacuum states (lower than the pressure of the tank of bleeding at least pressure) in making container 22 after, open magnetic valve V11, the on-condensible gas in the tank 8 of bleeding is discharged to outside machine.If vacuum switch 26 actions, the discharge of control part 25 judgement on-condensible gases finishes, shut electromagnetic valve V11, and stop vavuum pump 21.
Figure 10 means the skeleton diagram that the present invention is applicable to the embodiment in air extractor shown in Figure 9.In embodiment shown in Figure 10, container 22, magnetic valve V11 and three-way solenoid valve V12, under formation shown in Figure 9, to have appended another container be gas-tight container (tank B) 2, possess pipe arrangement 4 that magnetic valve V3 is connected with throttle orifice, connect gas-tight container 2 and vavuum pump 21 and have the pipe arrangement 28 of magnetic valve V13, and vacuum switch 26 is replaced to pressure sensor 5.And the pressure sensor 5 of magnetic valve V3, magnetic valve V13, each container is connected with control part 25.The formation of this air extractor equates substantially with the formation of appending magnetic valve V11 on the formation of the composition decision maker of gas shown in Figure 6, the action action as shown in Figure 6 of device is the same, and the on-off action of the vacuum pumping valve V4 of the on-off action of magnetic valve V11 and Fig. 6 is suitable.
In addition, as air extractor, except the device that uses oily rotary vacuum pump, also there is the form of using dry vacuum or jet pump.Figure 11 means the skeleton diagram of formation of the air extractor 20 of the vavuum pump that uses dry vacuum or jet pump etc.In air extractor shown in Figure 11 20, do not need to collect the oil of adverse current, therefore, (VP) 21 such as the vavuum pump of dry vacuum or jet pump etc. directly is connected by the pipe arrangement 23 with magnetic valve V11 with the tank 8 of bleeding of refrigerator etc.In addition, be provided with vacuum switch 26 on this pipe arrangement 23, can confirm the state of exhaust.In this air extractor 20, after starting vavuum pump 21 under the state of shut electromagnetic valve V11, open magnetic valve V11 and discharge on-condensible gas.
Figure 12 means the skeleton diagram that the present invention is applicable to the embodiment in air extractor shown in Figure 11.
At embodiment shown in Figure 12, to append two containers on formation shown in Figure 11, namely, the first container 1 and second container 2, and appended connect the first container 1 are connected with vavuum pump and possess three-way solenoid valve V14 pipe arrangement 29, connect the first container 1 and second container 2 and have magnetic valve V3 and the pipe arrangement 4 of throttle orifice 3, and connect second container 2 and vavuum pump 21 and have the pipe arrangement 28 of magnetic valve V13.The formation of air extractor shown in Figure 12 is identical with device shown in Figure 10, the action, the effect also the device with shown in Figure 10 is the same.
Above, embodiments of the present invention are illustrated, but the present invention is not limited to above-mentioned embodiment, can carry out various distortion in the scope of the technological thought that claim scope and specification, accompanying drawing are put down in writing.
Claims (6)
1. the composition decision method of an on-condensible gas, is characterized in that,
In will residual on-condensible gas imports to the first airtight container in the absorption of the absorbent by absorption refrigerating machine, absorption chilled and hot water apparatus or absorption heat pump is carried out the device of movement of heat,
Make airtight second container form vacuum,
Open connecting above-mentioned the first container and pipeline above-mentioned second container, that have throttle orifice, above-mentioned the first container and above-mentioned second container be communicated with,
Measure the pressure of above-mentioned the first container and the above-mentioned second container time till identical.
2. the composition decision method of an on-condensible gas, is characterized in that,
Make gas-tight container form vacuum,
The device that carries out the movement of heat for the absorption of the absorbent by absorption refrigerating machine, absorption chilled and hot water apparatus or absorption heat pump, the container and the pipeline above-mentioned gas-tight container and that have throttle orifice that connect in the residual said apparatus that on-condensible gas arranged are opened, container and above-mentioned gas-tight container in said apparatus are communicated with
Time till container in the measurement said apparatus is identical with the pressure of above-mentioned gas-tight container.
3. the composition decision maker of a gas is characterized in that possessing:
Airtight and difference can be connected with vavuum pump the first container and second container;
Connect pipe arrangement above-mentioned the first container and above-mentioned second container, that have open and close valve and throttle orifice;
Measure above-mentioned the first container pressure piezometry mechanism and measure the piezometry mechanism of pressure of above-mentioned second container or the pressure reduction of measuring the pressure reduction between above-mentioned the first container and above-mentioned second container is measured mechanism; And
Control part,
Above-mentioned control part stored various pressure and reach all time of advent used till pressing and the component ratio of gas between relation, and control the switching of above-mentioned open and close valve, take the pressure of measuring above-mentioned the first container piezometry mechanism detected pressures and the pressure of measuring above-mentioned second container piezometry mechanism detected pressures or take the pressure reduction of detected pressures and above-mentioned pressure reduction mensuration mechanism of the piezometry mechanism of the pressure of measuring above-mentioned the first container, the component ratio of measurement gas automatically.
4. the composition decision maker of a gas is characterized in that possessing:
The gas-tight container that can be connected with vavuum pump;
Pipe arrangement with open and close valve and throttle orifice, this pipe arrangement can connect above-mentioned gas-tight container and the absorption of absorbent by absorption refrigerating machine, absorption chilled and hot water apparatus or absorption heat pump and carry out the residual container that on-condensible gas is arranged among the device of movement of heat;
Piezometry mechanism measures respectively the pressure of the pipe arrangement of the residual vessel side of the on-condensible gas of the pressure of above-mentioned gas-tight container and above-mentioned throttle orifice; And
Control part,
Above-mentioned control part stored various pressure and reach all time of advent used till pressing and the component ratio of gas between relation, and control the switching of above-mentioned open and close valve, take the detected pressures of above-mentioned piezometry mechanism, automatically the component ratio of measurement gas.
5. an absorption refrigerating machine or absorption chilled and hot water apparatus, is characterized in that possessing the composition decision maker of claim 3 or 4 described gases.
6. an air extractor, is characterized in that, possesses the composition decision maker of claim 3 or 4 described gases.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| JP2008117154A JP5202088B2 (en) | 2008-04-28 | 2008-04-28 | Gas component determination method and apparatus |
| JP2008117154 | 2008-04-28 | ||
| JP2008-117154 | 2008-04-28 |
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| CN101571336A CN101571336A (en) | 2009-11-04 |
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| JP7204308B2 (en) * | 2020-08-17 | 2023-01-16 | 矢崎エナジーシステム株式会社 | judgment device |
| JP2023043360A (en) * | 2021-09-16 | 2023-03-29 | パナソニックＩｐマネジメント株式会社 | Absorber unit, heat exchange unit, and absorption refrigerator |
| CN115615065B (en) * | 2022-12-05 | 2023-03-28 | 安徽普泛能源技术有限公司 | Equipment for recovering outlet gas of safety valve and purifying non-condensable gas and application of equipment |
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| JP3532586B2 (en) * | 1993-01-20 | 2004-05-31 | トキコテクノ株式会社 | Gas filling equipment |
| JP2001041614A (en) * | 1999-07-26 | 2001-02-16 | Sanyo Electric Co Ltd | Absorption refrigerating machine |
| JP2002295929A (en) * | 2001-03-28 | 2002-10-09 | Tokyo Gas Co Ltd | Absorption refrigerating machine and its operating method |
| JP3655569B2 (en) * | 2001-09-06 | 2005-06-02 | 大陽日酸株式会社 | Gas component concentration measuring method and apparatus |
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| JP5202088B2 (en) | 2013-06-05 |
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