CN208366394U - A kind of vapour lock flow regulator for elemental analyser - Google Patents
A kind of vapour lock flow regulator for elemental analyser Download PDFInfo
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- CN208366394U CN208366394U CN201820802566.XU CN201820802566U CN208366394U CN 208366394 U CN208366394 U CN 208366394U CN 201820802566 U CN201820802566 U CN 201820802566U CN 208366394 U CN208366394 U CN 208366394U
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- gas circuit
- total
- vapour lock
- flow regulator
- capillary
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Abstract
The utility model discloses a kind of vapour lock flow regulator for elemental analyser, including total gas circuit and control unit, total gas circuit includes point gas circuit of multi-channel parallel setting, includes the switch block and capillary being arranged in series in each point of gas circuit；Described control unit is connected with the switch block in each point of gas circuit respectively, for controlling the on-off of each switch block to control the flow of total gas circuit.The vapour lock flow regulator for elemental analyser of the utility model has many advantages, such as that structure is simple, flow adjusting is accurate and easy access.
Description
Technical field
The utility model relates generally to constituent content analysis technical field in combustible, refers in particular to a kind of for elemental analysis
The vapour lock flow regulator of instrument.
Background technique
In current elemental analyser, oxygen generally is controlled in such a way that two-way valve adds current limiter and precise pressure regulating valve
Then gas output flow and pressure monitor flow in rear end tandem rotor flowmeter.Such mode the degree of automation is low, needs hand
Dynamic to adjust flow and output pressure value, the flow adjusted every time and pressure value difference are big, and consistency is poor, and precise pressure regulating valve at
This height；Another mode is to do vapour lock using sintered type metallic screen.The consistency of this mode is equally poor, and every time more
It is required to be corrected when changing.
Utility model content
The technical problems to be solved in the utility model is that for technical problem of the existing technology, this is practical new
Type provides that a kind of structure is simple, flow is adjusted precisely and the vapour lock flow regulator for elemental analyser of easy access.
In order to solve the above technical problems, the utility model proposes technical solution are as follows:
A kind of vapour lock flow regulator for elemental analyser, including total gas circuit and control unit, total gas circuit
Divide gas circuit including what multi-channel parallel was arranged, includes the switch block and capillary being arranged in series in each point of gas circuit；The control
Unit is connected with the switch block in each point of gas circuit respectively, for controlling the on-off of each switch block to control the stream of total gas circuit
Amount.
As a further improvement of the above technical scheme:
The input terminal or/and output end of total gas circuit are equipped with pressure detecting part, for monitoring total gas circuit both ends in real time
Gas pressure value.
The pressure detecting part is pressure sensor.
The output end of total gas circuit is equipped with flow detection part, for monitoring the gas flow of total gas circuit in real time.
The flow detection part includes total capillary and pressure sensor, and total capillary is connected in total gas circuit, institute
Pressure sensor and total capillary paralleling are stated, for monitoring the pressure difference at total capillary both ends to obtain gas flow.
The output end of total gas circuit is equipped with relief valve, carries out automatic leakage when being more than preset value for the pressure in total gas circuit
Pressure.
Each switch block is two-way valve.
The aperture of capillary is all different in each point of gas circuit.
The quantity of described point of gas circuit is three tunnels.
Compared with the prior art, the advantages of the utility model are:
The vapour lock flow regulator for elemental analyser of the utility model, by starting one or more point of gas circuit
Realize the adjusting of flow；Using aperture and the good capillary of extension consistency in each point of gas circuit, realize flow automatically control and
Stability of flow, and since the vapour lock consistency that the capillary of same apertures generates is good, without being corrected when replacing vapour lock, just
In maintenance；And apparatus structure is simple, easy to operate.
The vapour lock flow regulator for elemental analyser of the utility model is monitored in real time each by pressure detecting part
Whether in the normal range to locate pressure, automatic alarm when admission pressure is not up to standard or when capillary blockage reminds work people
Member's adjustment admission pressure or replacement capillary.In addition, the output end in total gas circuit is equipped with relief valve, for the pressure in total gas circuit
Releasing pressure automatically is carried out when more than preset value.
Detailed description of the invention
Fig. 1 is the schematic diagram of gas circuit of the utility model.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 is the structural schematic diagram of the flow detection part in the utility model.
Figure label indicates: 1, switch block；2, capillary；3, pressure detecting part；4, flow detection part；401, total capillary
Pipe；402, gasket；403, upper sealing panel；404, upper mounted plate；405, bottom plate；406, O-ring；407, pressure sensing
Device；5, relief valve；6, air inlet；7, gas outlet.
Specific embodiment
The utility model is further described below in conjunction with Figure of description and specific embodiment.
As shown in Figure 1, the vapour lock flow regulator for elemental analyser of the present embodiment, including total gas circuit and control
Unit (such as PLC is not shown in the figure), total gas circuit include point gas circuit of multi-channel parallel, wherein including switching group in each point of gas circuit
Part 1 and capillary 2, switch block 1 and capillary 2 are connected in series；Control unit respectively with 1 phase of switch block in each point of gas circuit
Even, for controlling the on-off of each switch block 1, to control the on-off of each branch, the flow of total gas circuit is then controlled.Specifically
The aperture on ground, the capillary 2 in each point of gas circuit is all different, and passes through the different stream of 2 pairs of correspondences of capillary of setting different pore size
Amount realizes the adjusting of flow to open all the way or multiple branches road for different situation selections；Certainly, in other realities
It applies in example, can also set identical for the aperture of capillary 2 in each point of gas circuit, can choose one or more branch path, from
And realize the adjusting of flow.The vapour lock flow regulator for elemental analyser of the utility model, by start all the way or
The adjusting that multichannel divides gas circuit to realize flow；Using the capillary 2 that aperture and extension consistency are good in each point of gas circuit, flow is realized
Automatic control and stability of flow, and since the vapour lock consistency that the capillary of same apertures 2 generates is good, it is not necessarily to when replacing vapour lock
It is corrected.
In the present embodiment, the input terminal and output end of total gas circuit are equipped with pressure detecting part 3(such as pressure sensor), it is used for
Monitor the gas pressure value at total gas circuit both ends in real time.As shown in Figure 1, pressure sensor P1 monitoring input end pressure, pressure sensing
Device P2 monitors the pressure of output end, whether in the normal range to monitor each pressure, and when admission pressure is not up to standard or capillary
Automatic alarm when pipe 2 blocks reminds staff to adjust admission pressure or replacement capillary 2.In addition, in the output end of total gas circuit
Equipped with relief valve 5, releasing pressure automatically is carried out when being more than preset value for the pressure in total gas circuit.
In the present embodiment, the output end of total gas circuit is equipped with flow detection part 4, for monitoring the gas stream of total gas circuit in real time
Amount, and carry out real-time display.Specifically, flow detection part 4 includes total capillary 401 and pressure sensor, and total capillary 401 is gone here and there
It is associated in total gas circuit, pressure sensor is in parallel with total capillary 401, for monitoring the pressure difference at total 401 both ends of capillary to change
Calculation obtains gas flow, realizes the automatic monitoring of flow.As shown in figure 3, flow detection part 4 uses existing conventional differential stream
Meter specifically includes gasket 402, upper sealing panel 403, upper mounted plate 404, bottom plate 405, pressure sensor 407(Fig. 1
Middle P3) and the composition of multiple O-rings 406.
As shown in Fig. 2, each component is mounted in a shell, wherein each switch block 1(such as two-way valve) it is located at shell
Left side, pressure sensor P1, P2 are located at the bottom of shell, and air inlet 6 and gas outlet 7 are located at the top of shell, and relief valve 5 is located at
The right side of shell.
As shown in Figure 1, specifically, dividing the quantity of gas circuit is three tunnels, and corresponding high, normal, basic three kinds of flows are adjusted, corresponding capillary
Pipe 2 is respectively 1#, 2#, 3#, and corresponding two-way valve is respectively SV1, SV2 and SV3, in different experimental states by automatically switching two
The on-off of port valve controls senior middle school's low discharge；
When testing standby mode, two-way valve SV1 is opened, and oxygen is low by the control output of 1# capillary 2 0.5L/min's
Flow oxygen, which flows into experiment gas circuit, rinses experiment pipeline.
During sample combustion, two-way valve SV2 is opened, the middle flow that oxygen passes through the control output of 2# capillary 2 1L/min
Oxygen flows into experiment gas circuit and assists sample combustion.
Burning gases collect process, and two-way valve SV3 is opened, the high stream that oxygen passes through the control output of 3# capillary 2 5L/min
Amount oxygen flows into experiment gas circuit and the gas bleed generated after burning is flowed into collector.
Although the utility model has been disclosed with preferred embodiment as above, it is not intended to limit the utility model.It is any
Those skilled in the art, in the case where not departing from technical solutions of the utility model range, all using the disclosure above
Technology contents many possible changes and modifications are made to technical solutions of the utility model, or be revised as the equivalent of equivalent variations
Embodiment.Therefore, all contents without departing from technical solutions of the utility model, according to the utility model technical spirit to the above reality
Any simple modifications, equivalents, and modifications that example is done are applied, should all be fallen in the range of technical solutions of the utility model protection.
Claims (9)
1. a kind of vapour lock flow regulator for elemental analyser, which is characterized in that including total gas circuit and control unit, institute
Point gas circuit that total gas circuit includes multi-channel parallel setting is stated, includes the switch block (1) being arranged in series and capillary in each point of gas circuit
It manages (2)；Described control unit is connected with the switch block (1) in each point of gas circuit respectively, for controlling the logical of each switch block (1)
The disconnected flow to control total gas circuit.
2. the vapour lock flow regulator according to claim 1 for elemental analyser, which is characterized in that total gas
The input terminal or/and output end on road are equipped with pressure detecting part (3), for monitoring the gas pressure value at total gas circuit both ends in real time.
3. the vapour lock flow regulator according to claim 2 for elemental analyser, which is characterized in that the pressure
Detection piece (3) is pressure sensor.
4. the vapour lock flow regulator as claimed in any of claims 1 to 3 for elemental analyser, feature
It is, the output end of total gas circuit is equipped with flow detection part (4), for monitoring the gas flow of total gas circuit in real time.
5. the vapour lock flow regulator according to claim 4 for elemental analyser, which is characterized in that the flow
Detection piece (4) includes total capillary (401) and pressure sensor, and total capillary (401) is connected in total gas circuit, the pressure
Force snesor is in parallel with total capillary (401), for monitoring the pressure difference at total capillary (401) both ends to obtain gas stream
Amount.
6. the vapour lock flow regulator as claimed in any of claims 1 to 3 for elemental analyser, feature
It is, the output end of total gas circuit is equipped with relief valve (5), carries out automatic leakage when being more than preset value for the pressure in total gas circuit
Pressure.
7. the vapour lock flow regulator as claimed in any of claims 1 to 3 for elemental analyser, feature
It is, each switch block (1) is two-way valve.
8. the vapour lock flow regulator as claimed in any of claims 1 to 3 for elemental analyser, feature
It is, the aperture of capillary (2) is all different in each point of gas circuit.
9. the vapour lock flow regulator according to claim 8 for elemental analyser, which is characterized in that described to divide gas
The quantity on road is three tunnels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820802566.XU CN208366394U (en) | 2018-05-28 | 2018-05-28 | A kind of vapour lock flow regulator for elemental analyser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820802566.XU CN208366394U (en) | 2018-05-28 | 2018-05-28 | A kind of vapour lock flow regulator for elemental analyser |
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| Publication Number | Publication Date |
|---|---|
| CN208366394U true CN208366394U (en) | 2019-01-11 |
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ID=64930432
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820802566.XU Active CN208366394U (en) | 2018-05-28 | 2018-05-28 | A kind of vapour lock flow regulator for elemental analyser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362719A (en) * | 2019-07-25 | 2021-02-12 | 苏州微木智能系统有限公司 | Airflow flow control device and ion mobility spectrometer |
| CN112857503A (en) * | 2021-01-08 | 2021-05-28 | 欧世盛（北京）科技有限公司 | Small-flow gas volume flow measuring device |
-
2018
- 2018-05-28 CN CN201820802566.XU patent/CN208366394U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362719A (en) * | 2019-07-25 | 2021-02-12 | 苏州微木智能系统有限公司 | Airflow flow control device and ion mobility spectrometer |
| CN112362719B (en) * | 2019-07-25 | 2023-08-25 | 苏州微木智能系统有限公司 | Airflow flow control device and ion mobility spectrometer |
| CN112857503A (en) * | 2021-01-08 | 2021-05-28 | 欧世盛（北京）科技有限公司 | Small-flow gas volume flow measuring device |
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