CN202332785U - Heating device for ion sources - Google Patents
Heating device for ion sources Download PDFInfo
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- CN202332785U CN202332785U CN2011204675559U CN201120467555U CN202332785U CN 202332785 U CN202332785 U CN 202332785U CN 2011204675559 U CN2011204675559 U CN 2011204675559U CN 201120467555 U CN201120467555 U CN 201120467555U CN 202332785 U CN202332785 U CN 202332785U
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- gas
- heater
- ionogenic
- gas passage
- heating
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Abstract
The utility model discloses a heating device for ion sources. The heating device comprises a body and a ceramic element, wherein a heating cavity is defined in the body, the first end of the body is provided with a heating end part, a first gas passage and a gas inlet are formed on the first side surface of the heating end part, the ceramic element comprises a body section and a ceramic end part, the body section is in gap matching in the heating cavity, a second gas passage is defined between the body section and the body, the second gas passage and the first air passage are communicated through a plurality of gas notches. According to the heating device provided by the utility model, a sufficient space is provided for the flowing of air in the formed and communicated first gas passage and the second gas passage, so the sufficient heat exchange among the gas, the body and the ceramic element is convenient, the heat loss is reduced, the gas heating efficiency is greatly improved, further, the mass spectrometry ionization efficiency is improved in the mass spectrometry process, and the product cost is effectively reduced.
Description
Technical field
The utility model relates to field of mass spectrometry, relates in particular to a kind of heater that is used for mass spectrum intermediate ion source.
Background technology
Ion source is mass spectral important component part.Ionogenic effect is that the ionized sample molecule of being analyzed is become charged ions, and makes these ions under the effect of ion optics, accumulates the ion beam with certain geometrical shape and certain energy, and it is separated to get into mass analyzer then.
Ionogenic structure and performance and mass spectral sensitivity and resolution have confidential relation.It is a lot of to influence the Ionized factor of ion source, and dry gas is a very important factor.It is in the opposite direction that dry gas and charged ion flow; Its effect is to make drop further disperse the evaporation with accelerated solvent; Be beneficial to separating of analyte and solvent, reduce the molecule-ionic polymerization that is promoted just as too fast evaporating solvent and aerosol rapid diffusion.Under the effect of the dry gas that heats, the solvent in the drop is reached better ionization effect by evaporation rapidly.
Heating cavity temperature and dry gas temperature directly have influence on the effect of desolvating.When generally speaking these two temperature were high more, the effect of desolvating was good more, because the temperature high solvent gasifies easily, can improve the rate of desolvating significantly, and cavity temperature and dry gas temperature can be so that the effect of desolvating spatially do not have big difference uniformly.In order to satisfy these demands, this just requires when heater is arranged, also to need the path structure that flows to of gas.
The gas of using on traditional ion source mainly is to be incorporated into the ion source the inside through gathering four fluorine tube or other tracheaes, can bring other impurity in the gas of feasible heating, influences the performance of instrument, and potential problems such as pipeline is aging, gas leakage are arranged; Simultaneously tracheae exposed badly influences the attractive in appearance of complete machine.
The utility model content
The utility model is intended to solve at least one of technical problem that exists in the prior art.For this reason, a purpose of the utility model is to propose a kind of ionogenic heater that is used for, and said heater has prolonged the gas circuit of dry gas, and gas temperature can be improved fast, thereby reaches better ionization effect.
The ionogenic heater that is used for according to the utility model embodiment; Comprise: body; Limit columniform heated chamber in the said body; First end of said body has the heating termination, is formed with first gas passage and the gas access that is communicated with said first gas passage of annular on first side surface of said heating termination, and second end of said body is provided with and is suitable for the port that links to each other with temperature detect switch (TDS); Ceramic member; Said ceramic member comprises main paragraph and the ceramic termination that is connected second side of said main paragraph; Said main paragraph matched in clearance in said heated chamber and second side surface of said ceramic termination prop up first side surface of said heating termination; Limit second gas passage of annular between said main paragraph and the said body, wherein, a plurality of gas breach of said second gas passage and said first gas passage first side surface through being formed on said heating termination are connected.
According to the ionogenic heater that is used for of the utility model, through being formed with in first gas passage and second gas passage that communicates, for gas flow provides adequate space; To make things convenient for the sufficient heat exchange of gas and body and ceramic member; Reduce thermal loss, improved the efficient of gas heated greatly, and then in the mass spectrum process; Improve the Ionized efficient of mass spectrum, and reduced the cost of product effectively.In addition; Because first gas passage is to limit through heating termination and ceramic termination, and second gas passage is by limiting between main paragraph and the body, not having the participation of tracheae in this design; First gas passage and second gas passage have then played the tracheae effect; Make gas fully contact with body and ceramic member, the heat that has efficiently utilized heater to provide makes gas temperature enough high.Gas flows to heating cavity inside along first gas passage and second gas passage of annular, has weakened air-flow, has avoided the influence to ion flow.
In addition, the ionogenic heater that is used for according to the utility model also has following additional technical feature:
According to an embodiment of the utility model, said first gas passage is the groove that is formed on the annular on first side surface of said heating termination.
Alternatively, said groove is a deep-slotted chip breaker.
Perhaps alternatively, said groove is a square groove.
According to an embodiment of the utility model, said gas breach is three or more than three.
According to an embodiment of the utility model, saidly be used for ionogenic heater and further comprise: sealing ring, said sealing ring are located between first side surface of second side surface and said heating termination of said ceramic termination to guarantee air-tightness.
According to an embodiment of the utility model, saidly be used for ionogenic heater and further comprise: go into orotracheal tube, saidly go into orotracheal tube and link to each other with said gas access and need heated gas in said gas access, to infeed.
It is alternatively, said that to go into orotracheal tube be metal tracheae and place, the gas access that is welded on said heating termination.
An embodiment according to the utility model is formed with spiral path groove in the outside of said body.
Alternatively, said path groove is a square groove.
Additional aspect of the utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the practice of the utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the explosive view that is used for ionogenic heater according to the utility model embodiment; And
Fig. 2 is the cutaway view that is used for ionogenic heater according to the utility model embodiment.
Embodiment
Describe the embodiment of the utility model below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the utility model, and can not be interpreted as restriction the utility model.
In the description of the utility model; It will be appreciated that; Term " orientation or the position relation of indication such as " center ", " left side ", " right side ", " interior ", " outward " is for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the utility model, rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction to the utility model.In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In the description of the utility model, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.In addition, in the description of the utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
Describe according to the utility model embodiment a kind of with reference to figure 1 and Fig. 2 below and be used for ionogenic heater.
According to the ionogenic heater that is used for of the utility model embodiment, comprise body 1 and ceramic member 2.As depicted in figs. 1 and 2; Limit columniform heated chamber 10 in the body 1; First end of body 1 (the for example right-hand member among Fig. 1) has heating termination 11; Be formed with first gas passage 111 of annular and the gas access 112 that is communicated with first gas passage 111 on first side (like the right side among Fig. 1 and Fig. 2) surface of heating termination 11, as shown in Figure 2.Second end of body 1 (the for example left end among Fig. 1) is provided with and is suitable for the port one 2 that links to each other with temperature detect switch (TDS) (scheming not shown); Wherein temperature detect switch (TDS) can be connected with heater strip, and the outside that heater strip is located at body 1 for example is that nitrogen heats with the gas to circulation in heated chamber 10.Because temperature detect switch (TDS) and heater strip are known by the one of ordinary skilled in the art, repeat no more at this.
As shown in Figure 1, ceramic member 2 comprises main paragraph 21 and the ceramic termination 22 that is connected second side of main paragraph 21.As shown in Figure 2; Main paragraph 21 matched in clearance are in heated chamber 10; Limit second gas passage 23 of annular thus between main paragraph 21 and the body 1, wherein second gas passage 23 and first gas passage 111 are connected through a plurality of gas breach 113 that are formed on first side surface that heats termination 11.In addition, second side surface of ceramic termination 22 first side surface that props up heating termination 11 is with air tight during gas flow in first gas passage 111 of first side surface that guarantees to be located at heating termination 11.
Thus, gas is 112 entering from the gas access, shown in arrow among Fig. 2; Enter into first gas passage 111 of annular then, demultiplexing air-flow from a plurality of gas breach 113 then, and flow into respectively in second gas passage 23; And flow in the heated chamber 10 along second gas passage 23; Prolong gas circuit thus, increased the heating surface area of gas significantly, impelled the temperature of gas to raise rapidly.
According to the ionogenic heater that is used for of the utility model, through being formed with in first gas passage 111 and second gas passage 23 that communicates, for gas flow provides adequate space; To make things convenient for the sufficient heat exchange of gas and body 1 and ceramic member 2; Reduce thermal loss, improved the efficient of gas heated greatly, and then in the mass spectrum process; Improve the Ionized efficient of mass spectrum, and reduced the cost of product effectively.In addition; Because first gas passage 111 is to limit through heating termination 11 and ceramic termination 22, and second gas passage 23 is by limiting between main paragraph 21 and the body 1, not having the participation of tracheae in this design; First gas passage 111 and second gas passage 23 have then played the tracheae effect; Make gas fully contact with body 1 and ceramic member 2, the heat that has efficiently utilized heater to provide makes gas temperature enough high.Gas flow to heating cavity inside along first gas passage 111 and second gas passage 23 of annular, has weakened air-flow, has avoided the influence to ion flow.
In an embodiment of the utility model, first gas passage 111 is the groove of the annular on first side surface that is formed on heating termination 11.Alternatively, groove is a deep-slotted chip breaker.Perhaps alternatively, groove is a square groove.
In an embodiment of the utility model, gas breach 113 is three or more than three.For example as shown in fig. 1, gas breach 113 is four.
In an embodiment of the utility model, be used for ionogenic heater and further comprise: sealing ring 3, sealing ring 3 are located between first side surface of second side surface and heating termination 11 of ceramic termination 22 to guarantee air-tightness.
Alternatively, be used for ionogenic heater and also further comprise: go into orotracheal tube 4, go into orotracheal tube 4 and link to each other with gas access 112 in gas access 112, to infeed the heated gas of need.Alternatively, go into orotracheal tube 4 and be metal tracheae and 112 places, gas access that are welded on heating termination 11, as shown in Figure 2.
In an embodiment of the utility model; Be formed with spiral path groove 13 in the outside of body 1; Wherein heater strip can be located in the path groove 13, and when gas flowed in heated chamber 10, the external heated silk that is spirally wound on body 1 can evenly heat gas thus.Alternatively, path groove 13 is square groove, and is as shown in Figure 1.
According to the utility model embodiment be used for ionogenic heater other for example constitute temperature detect switch (TDS) and heater strip etc. and operation all is known for those of ordinary skills, be not described in detail here.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained among at least one embodiment or example of the utility model.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described the embodiment of the utility model; Those having ordinary skill in the art will appreciate that: under the situation of principle that does not break away from the utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, the scope of the utility model is limited claim and equivalent thereof.
Claims (10)
1. one kind is used for ionogenic heater, it is characterized in that, comprising:
Body; Limit columniform heated chamber in the said body; First end of said body has the heating termination; Be formed with first gas passage and the gas access that is communicated with said first gas passage of annular on first side surface of said heating termination, second end of said body is provided with and is suitable for the port that links to each other with temperature detect switch (TDS);
Ceramic member; Said ceramic member comprises main paragraph and the ceramic termination that is connected second side of said main paragraph; Said main paragraph matched in clearance in said heated chamber and second side surface of said ceramic termination prop up first side surface of said heating termination; Limit second gas passage of annular between said main paragraph and the said body, wherein
A plurality of gas breach of said second gas passage and said first gas passage first side surface through being formed on said heating termination are connected.
2. according to claim 1ly be used for ionogenic heater, it is characterized in that, said first gas passage is the groove that is formed on the annular on first side surface of said heating termination.
3. according to claim 2ly be used for ionogenic heater, it is characterized in that said groove is a deep-slotted chip breaker.
4. according to claim 2ly be used for ionogenic heater, it is characterized in that said groove is a square groove.
5. according to claim 1ly be used for ionogenic heater, it is characterized in that, said gas breach is three or more than three.
6. according to each describedly is used for ionogenic heater among the claim 1-5, it is characterized in that, further comprise:
Sealing ring, said sealing ring are located between first side surface of second side surface and said heating termination of said ceramic termination to guarantee air-tightness.
7. according to claim 6ly be used for ionogenic heater, it is characterized in that, further comprise: go into orotracheal tube, saidly go into orotracheal tube and link to each other with said gas access and need heated gas in said gas access, to infeed.
8. according to claim 7ly be used for ionogenic heater, it is characterized in that, said to go into orotracheal tube be metal tracheae and place, the gas access that is welded on said heating termination.
9. according to claim 1ly be used for ionogenic heater, it is characterized in that, be formed with spiral path groove in the outside of said body.
10. according to claim 9ly be used for ionogenic heater, it is characterized in that said path groove is a square groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204675559U CN202332785U (en) | 2011-11-22 | 2011-11-22 | Heating device for ion sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204675559U CN202332785U (en) | 2011-11-22 | 2011-11-22 | Heating device for ion sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202332785U true CN202332785U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204675559U Expired - Lifetime CN202332785U (en) | 2011-11-22 | 2011-11-22 | Heating device for ion sources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202332785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206499A (en) * | 2015-10-14 | 2015-12-30 | 中国烟草总公司郑州烟草研究院 | Two-area reverse airflow atmospheric pressure chemical ionization source |
-
2011
- 2011-11-22 CN CN2011204675559U patent/CN202332785U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206499A (en) * | 2015-10-14 | 2015-12-30 | 中国烟草总公司郑州烟草研究院 | Two-area reverse airflow atmospheric pressure chemical ionization source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |