CN206845917U - Bolus injection adjustable valve - Google Patents
Bolus injection adjustable valve Download PDFInfo
- Publication number
- CN206845917U CN206845917U CN201720523866.XU CN201720523866U CN206845917U CN 206845917 U CN206845917 U CN 206845917U CN 201720523866 U CN201720523866 U CN 201720523866U CN 206845917 U CN206845917 U CN 206845917U
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- CN
- China
- Prior art keywords
- transparent pipe
- bolus injection
- tubular shell
- push rod
- adjustable valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of bolus injection adjustable valve, including tubular shell, to silk, transparent pipe, push rod and ball；Tubular shell first end is formed with step, mounting O-shaped sealing ring, annular gasket and to silk successively；Second end of tubular shell is less than transparent bore formed with end cap, end cap internal diameter；Transparent pipe is arranged on inside tubular shell；The inner surface of end cap is provided with internal thread；Push rod top is slotted, and inserts transparent pipe, first annular pad is installed in transparent pipe；Sealed between first annular pad and transparent pipe；One end outer surface of the push rod away from groove is provided with the external screw thread to match with the internal thread on end cap；The space formed between first annular pad, transparent pipe and annular gasket is working chamber, and ball is freely placed in working chamber；The diameter of ball is more than the internal diameter of annular gasket.The bolus injection adjustable valve is combined with existing electromagnetic pump/electric-motor pump, accurate to control single addition, meets that gas station adds the needs of smelly for combustion gas low discharge.
Description
Technical field
Chemicals addition field, particularly natural gas odorization apparatus field are the utility model is related to, is specially a kind of single
Secondary injection adjustable valve.
Background technology
It is mechanical that natural gas odorization equipment belongs to chemicals addition, according to national standard, need to add per square gaseous natural gas
Add 20~25 milligrams of thiophanes as smelly dose.Natural gas is colorless and odorless, and it is to play alarm function to add odorant.At present,
Into natural gas plus smelly equipment is mainly：1) electromagnetic pump used in gaseous state (low pressure) state；2) in liquid (high pressure) shape
Electric-motor pump is used during state.Electromagnetic pump or electric-motor pump are all made from multiple components, and each part exists in process of production
Dimensional tolerance, therefore the bolus injection amount of finished product electric-motor pump or electromagnetic pump all has differences, and does not ensure that completely the same.
Pump is before dispatching from the factory, and Membrane Electro-Megnetic Pump can change range by being added gasket after pumping diaphragm, to reduce bolus injection
Amount, plunger type motor pump can reduce bolus injection amount by changing connecting rod.Electromagnetic pump is difficult change single injection rate after dispatching from the factory；
Though electric-motor pump can change the frequency by frequency conversion, and then adjust bolus injection amount, electric-motor pump can manually adjust connecting rod
Bolus injection amount is adjusted, range is between 50mg-500mg, but the frequency of electric-motor pump is very high, and flow per minute is also bigger,
It also is difficult to reach the requirement of small injection rate after adjustment.
Natural gas is mainly used in resident's combustion gas, vehicle gas, heat supply.Usage amount has peak and low ebb.Resident uses combustion gas
It is mainly used in cooking, early, middle and late, other time usage amount is seldom on peak.Enterprise's production adds smelly equipment single injection rate most
It is low in 200mg~500mg, and be only 20~25mg per the odorizing amount of square natural gas.It is 200mg according to bolus injection amount
Electromagnetic pump, to reach standard of odorizing, i.e., per square natural gas 25mg, then need to meet gas consumption per minute more than 8 sides, once
Gas consumption per minute is less than 8 side's gas, then is either not plus smelly or be excessive plus smelly.According to be bolus injection
Amount is 500mg electromagnetic pump, according to standard of odorizing per square gas 25mg；Gas consumption per minute should be more than 20 side's gas；Once every point
When the gas consumption of clock is less than 20 side's gas, electromagnetic pump can not add smelly or excessive plus smelly.When electric-motor pump is in 50Hz, the frequency one of pump
As for 135 times it is per minute, in 12Hz at 50 times or so, bolus injection amount is minimum to be adjustable to 50 times or so, it is also difficult to is adapted to
The requirement of low discharge.It is making gas ordorous in order to more be accurately controlled, it is strict to control single addition to become in the urgent need to address
The problem of.
The control system single-chip microcomputer or PLC of odorization machine, generally there are three kinds of working conditions, the first segmentation, early, middle and late three
The timing of individual period plus smelly, second of fixed frequency, the frequency for setting pump work per minute adds smelly, and the third is automatic, the stream of natural gas
Gauge provides signal (4-20ma electric currents, 0-10V voltages, 4-32V voltages) according to flow, and flow signal connects single-chip microcomputer or PLC
The frequency of controlling pump.Undoubtedly the third is most accurate, and does not have to manual operation, but odorization machine does not have low discharge, natural
It is that can not set automatically in the case that throughput is small.Likewise, chemical reagent charging field also faces the problem of identical.
The content of the invention
In order to solve the problems, such as that it is smelly that combustion gas low discharge adds, the utility model provides a kind of bolus injection adjustable valve, its with
Existing electromagnetic pump/electric-motor pump combines, accurate to control single addition, meets that gas station adds the needs of smelly for combustion gas low discharge.
Therefore, the technical solution of the utility model is as follows：
A kind of bolus injection adjustable valve, including tubular shell, to silk, transparent pipe, push rod and ball；
The tubular shell first end is provided with screw thread, silk is matched with described formed with step, its inwall, the step
Locate mounting O-shaped sealing ring, annular gasket successively and to silk；It is described that silk is connected with the delivery outlet of electric-motor pump/electromagnetic pump；
Second end of the tubular shell is less than transparent bore formed with end cap, the end cap internal diameter；The transparent pipe
Inside the tubular shell；The inner surface of the end cap is provided with internal thread；
The push rod top fluting, the transparent pipe is inserted, first annular pad is installed in transparent pipe；It is described first annular
The hollow position of pad is corresponding with the position of the groove of the push rod, is penetrated with transparent tube cavity；First annular pad with it is transparent
Sealed between pipe；One end outer surface of the push rod away from groove is provided with the outer spiral shell to match with the internal thread on the end cap
Line；
The space formed between the first annular pad, transparent pipe and annular gasket is working chamber, and the ball is freely put
In the working chamber；The diameter of ball is more than the internal diameter of the annular gasket.
Further, the bolus injection adjustable valve also includes secondary sealer, and the secondary sealer includes three
Logical, shell and latex film；The tubular shell is divided into two sections, is sealingly mounted at the horizontal level of the threeway respectively, and described three
Logical another port installation shell, the latex film are arranged in the shell, form sealing.
Further, the tubular shell is locally provided with observation window, it can be seen that motion of the ball in transparent pipe.
Further, the inwall chamfering of the first annular pad, matches with the shape of ball.
Further, the push rod sets the end face of male end to be provided with handle or disk, facilitates rotating push rod to adjust
The volume of working chamber.
Further, the first annular pad and annular gasket are teflon gasket.
The bolus injection adjustable valve then controls bolus injection amount, simply by rotating push rod adjustment work chamber volume
The micro control of bolus injection amount can be achieved in operation；The bolus injection adjustable valve is come with a kind of passive reciprocating device
Adjust the bolus injection amount of reciprocating pump class.The device, which can also be used for reference, is used in chemical reagent addition field.
Brief description of the drawings
Fig. 1 is the cross-sectional view of bolus injection adjustable valve in embodiment 1；
Fig. 2 is the cross-sectional view of bolus injection adjustable valve in embodiment 2.
Embodiment
The technical solution of the utility model is described in detail below in conjunction with drawings and examples.
Embodiment 1
A kind of bolus injection adjustable valve, including tubular shell 3, to silk 4, transparent pipe 2, push rod 1 and ball 6；
The first end of tubular shell 3 is provided with screw thread formed with step, its inwall, with matching to silk 4, is installed successively at step
O-ring seal, annular gasket 5 and to silk 4；Silk 4 is connected with the delivery outlet of electric-motor pump/electromagnetic pump；
Second end of tubular shell 3 is less than the internal diameter of transparent pipe 2 formed with end cap, end cap internal diameter；Transparent pipe 2 is arranged on
Inside tubular shell 3；The inner surface of end cap is provided with internal thread；
The top of push rod 1 fluting 102, transparent pipe 2 is inserted, first annular pad 7 is installed in transparent pipe 2；First annular pad 7
Hollow position it is corresponding with the position of the groove 102 of push rod 1, with the inner chamber of transparent pipe 2 penetrate；First annular pad 7 and transparent pipe 2
Between seal；One end outer surface of the push rod 1 away from groove 102 is provided with the external screw thread to match with the internal thread on end cap；Push rod 1
Set the end face of male end to be provided with handle or disk 101, facilitate rotating push rod 1 with the volume of adjustment work chamber；
The space formed between first annular pad 7, transparent pipe 2 and annular gasket 5 is working chamber, and ball 6 is freely placed on work
Make intracavitary；The diameter of ball 6 is more than the internal diameter of annular gasket 5.It is preferred that the inwall chamfering of first annular pad 7, the shape with ball 6
Match, improve sealing.First annular pad 7 and annular gasket 5 are teflon gasket.
As an improvement to the present embodiment, tubular shell 3 is local to be provided with observation window 301, it can be seen that ball 6 is transparent
Motion in pipe 2.
In use, being connected to silk 4 with the delivery outlet of electric-motor pump/electromagnetic pump, gas enters working chamber to silk 4, passes through tune
Save the volume that push rod 1 controls working chamber；Then the control of bolus injection amount is controlled；When push rod 1 is shifted onto, ball 6 blocks annular
The hollow position of pad 5, that is, realize that electric-motor pump/electromagnetic pump works by the former course of work.
Embodiment 2
Difference with bolus injection adjustable valve in embodiment 1 is, in addition to secondary sealer 8, secondary seal dress
Putting 8 includes threeway 801, shell 802 and latex film 803；Tubular shell 3 is divided to the water for for two sections, being sealingly mounted at threeway 801 respectively
Prosposition is put, and the another port installation shell of threeway 801, latex film 803 is arranged in shell 802, forms sealing.
In use, being connected to silk 4 with the delivery outlet of electric-motor pump/electromagnetic pump, gas enters working chamber to silk 4, then leads to
Cross first annular pad and groove into transparent pipe, in secondary sealer 8, realize the control of single input quantity.
Claims (6)
- A kind of 1. bolus injection adjustable valve, it is characterised in that：Including tubular shell (3), to silk (4), transparent pipe (2), push rod And ball (6) (1)；Tubular shell (3) first end is provided with screw thread formed with step, its inwall, and silk (4) is matched with described, described Mounting O-shaped sealing ring, annular gasket (5) and to silk (4) successively at rank；Second end of the tubular shell (3) is less than the internal diameter of transparent pipe (2) formed with end cap, the end cap internal diameter；It is described It is internal that bright pipe (2) is arranged on the tubular shell (3)；The inner surface of the end cap is provided with internal thread；Push rod (1) top is slotted (102), inserts the transparent pipe (2), first annular pad is installed in transparent pipe (2) (7)；The hollow position of the first annular pad (7) is corresponding with the position of the groove (102) of the push rod (1), with transparent pipe (2) inner chamber penetrates；Sealed between first annular pad (7) and transparent pipe (2)；Outside the one end of the push rod (1) away from groove (102) Surface is provided with the external screw thread to match with the internal thread on the end cap；The space formed between the first annular pad (7), transparent pipe (2) and annular gasket (5) is working chamber, the ball (6) freely it is placed in the working chamber；The diameter of ball (6) is more than the internal diameter of the annular gasket (5).
- 2. bolus injection adjustable valve as claimed in claim 1, it is characterised in that：Also include secondary sealer (8), described two Secondary sealing device (8) includes threeway (801), shell (802) and latex film (803)；The tubular shell (3) is divided into two sections, point The horizontal level of the threeway (801) is not sealingly mounted at, and the another port installation shell (802) of the threeway (801) is described Latex film (803) is arranged in the shell (802), forms sealing.
- 3. bolus injection adjustable valve as claimed in claim 1 or 2, it is characterised in that：The tubular shell (3) is locally provided with and seen Examine window (301), it can be seen that motion of the ball (6) in transparent pipe (2).
- 4. bolus injection adjustable valve as claimed in claim 1 or 2, it is characterised in that：The inwall of the first annular pad (7) Chamfering, match with the shape of ball (6).
- 5. bolus injection adjustable valve as claimed in claim 1 or 2, it is characterised in that：The push rod (1) sets male end End face is provided with handle or disk (101).
- 6. bolus injection adjustable valve as claimed in claim 1 or 2, it is characterised in that：The first annular pad (7) and annular Pad (5) is teflon gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720523866.XU CN206845917U (en) | 2017-05-12 | 2017-05-12 | Bolus injection adjustable valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720523866.XU CN206845917U (en) | 2017-05-12 | 2017-05-12 | Bolus injection adjustable valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845917U true CN206845917U (en) | 2018-01-05 |
Family
ID=60795155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720523866.XU Expired - Fee Related CN206845917U (en) | 2017-05-12 | 2017-05-12 | Bolus injection adjustable valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206845917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013687A (en) * | 2017-05-12 | 2017-08-04 | 莫中振 | Bolus injection adjustable valve |
-
2017
- 2017-05-12 CN CN201720523866.XU patent/CN206845917U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013687A (en) * | 2017-05-12 | 2017-08-04 | 莫中振 | Bolus injection adjustable valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20200512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |