CN204140975U - The non-return filtering mechanism of flow automatic control device - Google Patents
The non-return filtering mechanism of flow automatic control device Download PDFInfo
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- CN204140975U CN204140975U CN201420578915.6U CN201420578915U CN204140975U CN 204140975 U CN204140975 U CN 204140975U CN 201420578915 U CN201420578915 U CN 201420578915U CN 204140975 U CN204140975 U CN 204140975U
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- way valve
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- filtering mechanism
- control device
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Abstract
The utility model discloses a kind of non-return filtering mechanism of flow automatic control device, this flow automatic control device includes modulating valve and magnetoelectric flowmeter, described magnetoelectric flowmeter includes testing pipes, described modulating valve includes valve body, valve body is provided with inlet pipeline, described testing pipes is connected setting with inlet pipeline input, non-return filtering mechanism is provided with between testing pipes and inlet pipeline, this non-return filtering mechanism includes from testing pipes to the one-way valve of inlet pipeline one-way conduction and and is arranged at the filter core in liquid feeding end direction of one-way valve.The utility model has the advantages that and can prevent medium impurity from entering modulating valve, thus the emery wheel of modulating valve is protected, also there is the function of counterflow-preventing simultaneously.
Description
Technical field
The utility model relates to flow automatic control device, specifically refers to a kind of non-return filtering mechanism of flow automatic control device.
Background technique
Flow automatic control device is integrated in one at flowmeter, modulating valve and actuator and intelligent control, the metering of flow fine adjustment can be automatically carried out in very wide range of flow, user can according to actual demand flow value, automatic adjustment remains that the flow of setting is constant, greatly reduces artificial labor intensity.
Existing flow automatic control device is as shown in Chinese ZL201220020911.7, include modulating valve, actuator and magnetoelectric flowmeter etc., the outlet end of the testing pipes of magnetoelectric flowmeter is connected with the valve body inlet pipeline of modulating valve, described modulating valve includes valve body, valve rod, emery wheel, emery wheel comprises the dynamic emery wheel and quiet emery wheel that cooperatively interact, the inlet passage conducting of the passage on described driving wheel and valve body, outlet passage conducting on quiet passage of taking turns and valve body, valve rod drives dynamic emery wheel to rotate and realizes dynamic relatively rotating between emery wheel and quiet emery wheel, thus the through hole realized on dynamic emery wheel and the through hole on quiet emery wheel are misplacing completely and are switching between conducting completely.
But there are following defects in existing flow automatic control device:
(1) liquid medium enters in modulating valve after the testing pipes of magnetoelectric flowmeter is passed through, and there is impurity in liquid medium can cause wear damage to the emery wheel of modulating valve;
(2) when modulating valve side pressure is excessive, liquid medium easily flows backwards, thus have impact on the testing precision of magnetoelectric flowmeter.
Summary of the invention
The purpose of this utility model is the shortcoming and defect existed to overcome prior art, and provides a kind of energy liquid medium to flow backwards and can prevent impurity in liquid medium from damaging the non-return filtering mechanism of the flow automatic control device of the emery wheel of modulating valve.
For achieving the above object, the technical solution of the utility model is that this flow automatic control device includes modulating valve and magnetoelectric flowmeter, described magnetoelectric flowmeter includes testing pipes, described modulating valve includes valve body, valve body is provided with inlet pipeline, described testing pipes is connected setting with inlet pipeline input, be provided with non-return filtering mechanism between testing pipes and inlet pipeline, this non-return filtering mechanism includes from testing pipes to the one-way valve of inlet pipeline one-way conduction and and is arranged at the filter core in liquid feeding end direction of one-way valve.
Further setting is that described one-way valve includes check valve body, nonreturn valve core, valve core reseting spring and one-way valve base, one-way valve runner and the one-way valve seat being arranged at one-way valve tunnel inlets side is provided with in described check valve body, described one-way valve base is fixedly installed on the one-way valve runner exit side of check valve body, this one-way valve base is provided with the base runner communicated with one-way valve runner, described one-way valve base center is provided with slippage cylinder, the outer end slippage of described nonreturn valve core is arranged in slippage cylinder, and the inner of this nonreturn valve core forms the one-way sealing pair be sealed and matched with one-way valve seat, described valve core reseting spring is arranged in slippage cylinder, the two ends of this valve core reseting spring abut with nonreturn valve core and the effect of one-way valve base respectively.
Further setting is that described one-way valve base is fixed in check valve body by fastening screw trip bolt.
Further setting be the outlet side relative to one-way valve seat of described check valve body outer wall on be provided with multiple flow through hole.
Further setting is described filter core is taper filter core, and the bottom of this taper filter core is fixedly installed on outside the entrance point of check valve body, and this taper filter core arranges multiple contaminant filter hole.
The utility model has the advantages that:
1, set up one-way valve, when oil well internal pressure is excessive, prevent liquid medium from flowing backwards to magnetoelectric flowmeter from modulating valve, improve flow measurement precision;
2, arrange filter core in the liquid feeding end direction of one-way valve, prevent the impurity in liquid medium from entering modulating valve, protection emery wheel is not damaged, improves its working life.
Below in conjunction with specification drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 the utility model application structure schematic diagram;
Fig. 2 the utility model embodiment one-way valve and filter core cooperating structure schematic diagram.
Embodiment
Below by embodiment, the utility model being specifically described, only for being further described the utility model, the restriction to the utility model protection domain can not being interpreted as.
Embodiment of the present utility model as shown in Figure 1-2, flow automatic control device includes modulating valve 1 and magnetoelectric flowmeter 2, described magnetoelectric flowmeter 2 includes testing pipes 21, described modulating valve 1 includes valve body 11, valve body is provided with inlet pipeline 111, described testing pipes 21 is connected setting with inlet pipeline 111 input, testing pipes 21 described in the present embodiment seals docking with inlet pipeline 111 by clip connected part 41 and is connected, this testing pipes 21 of certain the utility model and inlet pipeline 111 can also adopt other modes such as Flange joint to dock connection.
In addition, non-return filtering mechanism 3 is provided with between the present embodiment testing pipes 21 and inlet pipeline 111, this non-return filtering mechanism 3 include one-way valve from from testing pipes 21 to inlet pipeline one-way conduction 31 and and be arranged at the filter core 32 in liquid feeding end direction of one-way valve 31, filter core 32 described in the present embodiment is taper filter core, the bottom of this taper filter core is fixedly installed on outside the entrance point of check valve body 311, and this taper filter core arranges multiple contaminant filter hole 321.
The utility model one-way valve 31 can adopt the one-way valve of various ways, this one-way valve 31 of the present embodiment includes check valve body 311, nonreturn valve core 312, valve core reseting spring 313 and one-way valve base 314, one-way valve runner 315 and the one-way valve seat 316 being arranged at one-way valve runner 315 import side is provided with in described check valve body 311, the one-way valve runner 315 that described one-way valve base 314 is fixedly installed on check valve body 311 exports side, this one-way valve base 314 is provided with the base runner 3141 communicated with one-way valve runner 315, described one-way valve base 314 center is provided with slippage cylinder 3142, the outer end slippage of described nonreturn valve core 312 is arranged in slippage cylinder 3142, and the inner of this nonreturn valve core 312 forms the one-way sealing pair 3121 be sealed and matched with one-way valve seat 316, described valve core reseting spring 313 is arranged in slippage cylinder 3142, the two ends of this valve core reseting spring 313 act on nonreturn valve core 312 and one-way valve base 316 respectively and abutting.
One-way valve base 314 described in the present embodiment is fixed in check valve body 311 by fastening screw trip bolt 317, in addition, the outer wall of the outlet side relative to one-way valve seat 316 of described check valve body 311 is provided with multiple flow through hole 3111.
Claims (5)
1. the non-return filtering mechanism of a flow automatic control device, this flow automatic control device includes modulating valve and magnetoelectric flowmeter, described magnetoelectric flowmeter includes testing pipes, described modulating valve includes valve body, valve body is provided with inlet pipeline, described testing pipes is connected setting with inlet pipeline input, it is characterized in that: between testing pipes and inlet pipeline, be provided with non-return filtering mechanism, this non-return filtering mechanism includes from testing pipes to the one-way valve of inlet pipeline one-way conduction and and is arranged at the filter core in liquid feeding end direction of one-way valve.
2. the non-return filtering mechanism of a kind of flow automatic control device according to claim 1, it is characterized in that: described one-way valve includes check valve body, nonreturn valve core, valve core reseting spring and one-way valve base, one-way valve runner and the one-way valve seat being arranged at one-way valve tunnel inlets side is provided with in described check valve body, described one-way valve base is fixedly installed on the one-way valve runner exit side of check valve body, this one-way valve base is provided with the base runner communicated with one-way valve runner, described one-way valve base center is provided with slippage cylinder, the outer end slippage of described nonreturn valve core is arranged in slippage cylinder, and the inner of this nonreturn valve core forms the one-way sealing pair be sealed and matched with one-way valve seat, described valve core reseting spring is arranged in slippage cylinder, the two ends of this valve core reseting spring abut with nonreturn valve core and the effect of one-way valve base respectively.
3. the non-return filtering mechanism of a kind of flow automatic control device according to claim 2, is characterized in that: described one-way valve base is fixed in check valve body by fastening screw trip bolt.
4. the non-return filtering mechanism of a kind of flow automatic control device according to claim 2, is characterized in that: the outer wall of the outlet side relative to one-way valve seat of described check valve body is provided with multiple flow through hole.
5. the non-return filtering mechanism of a kind of flow automatic control device according to claim 1, it is characterized in that: described filter core is taper filter core, the bottom of this taper filter core is fixedly installed on outside the entrance point of check valve body, and this taper filter core arranges multiple contaminant filter hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578915.6U CN204140975U (en) | 2014-10-08 | 2014-10-08 | The non-return filtering mechanism of flow automatic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578915.6U CN204140975U (en) | 2014-10-08 | 2014-10-08 | The non-return filtering mechanism of flow automatic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140975U true CN204140975U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420578915.6U Active CN204140975U (en) | 2014-10-08 | 2014-10-08 | The non-return filtering mechanism of flow automatic control device |
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| CN (1) | CN204140975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738265A (en) * | 2022-03-09 | 2022-07-12 | 安徽士必达液压器材有限公司 | Liquid inlet one-way valve of high-pressure pump |
-
2014
- 2014-10-08 CN CN201420578915.6U patent/CN204140975U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738265A (en) * | 2022-03-09 | 2022-07-12 | 安徽士必达液压器材有限公司 | Liquid inlet one-way valve of high-pressure pump |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 198, Hualian Road, industrial park, Lingxi Town, Cangnan County, Wenzhou City, Zhejiang Province 325800 Patentee after: ZHEJIANG TANCY INSTRUMENT SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 325000 No.1 Industrial Park, Lingxi Town, Cangnan County, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG TANCY INSTRUMENT SCIENCE & TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |