CN203742962U - Metering pump with function of buffering and stabilizing liquid - Google Patents
Metering pump with function of buffering and stabilizing liquid Download PDFInfo
- Publication number
- CN203742962U CN203742962U CN201320893058.4U CN201320893058U CN203742962U CN 203742962 U CN203742962 U CN 203742962U CN 201320893058 U CN201320893058 U CN 201320893058U CN 203742962 U CN203742962 U CN 203742962U
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- China
- Prior art keywords
- metering pump
- buffering
- communicated
- transfer tube
- pump body
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- Expired - Lifetime
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- 230000003139 buffering effect Effects 0.000 title claims abstract description 43
- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 21
- 239000003381 stabilizer Substances 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 16
- 230000006641 stabilisation Effects 0.000 claims description 6
- 238000011105 stabilization Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model relates to the technical field of metering pumps and discloses a metering pump with a function of buffering and stabilizing liquid. The metering pump comprises a metering pump body. A liquid inlet and a liquid outlet are formed in the metering pump body. An adjusting valve is arranged in the liquid outlet and used for controlling on and off of the liquid. The adjusting valve and the metering pump body are communicated by an adapting pipe. A buffering and stabilizing liquid device is communicated with the upper end of the adapting pipe and used for buffering and stabilizing liquid. The lower end of the adapting pipe is communicated with the liquid outlet of the metering pump body. The adapting pipe is communicated with the adjusting valve. Since the buffering and stabilizing liquid device is arranged between the metering pump body and the adjusting valve, water hammer effect is effectively avoided, damage caused by intermittent shaking is prevented, maintenance cost of the device is reduced, continuity and uniformity of an outlet flow of the device is guaranteed, and accuracy of the outlet flow is improved.
Description
Technical field
The utility model relates to the technical field of metering pump, relates in particular to a kind of metering pump with buffering flow stabilizing function.
Background technique
Water hammer effect, claims again Water hammer effect." water hammer " refers to, and having a power failure suddenly, when the situation such as valve closing is too fast, pump body to-and-fro motion, due to the inertia of pressure flow, produces rivers shock wave, as hammer beats, so be water hammer.The power that rivers shock wave produces back and forth, very large sometimes, thus destroy valve, pipeline and water pump; In the time of electric water pump full voltage starting, within the time less than 1s, can accelerate to rated speed from state of rest, the flow in pipeline is increased to rated flow from zero, because fluid has momentum and compressibility to a certain degree, so, sharply changing of flow will cause pressure overvoltage or too low impact in pipeline, and occur " cavitation " phenomenon, the impact of pressure will make tube wall stressed and produce noise, just as hammer knocks pipe, be called " water hammer effect ".
Water hammer effect has great destructiveness: in the time that pressure is too high, will cause breaking of pipeline, otherwise the too low collapsing that can cause again pipeline of pressure, also can damage valve and fixed block; While shutdown when cutting off the electricity supply, the potential energy of pumping system will overcome the inertia of motor and command system stops sharp, and this can cause impact and the water hammer effect of pressure too.
At present, metering pump is mostly reciprocating motion type displacement pump, in the time that metering pump inside moves back and forth, the flow of its output, pressure are also intermittent, cause like this pipeline content of metering pump to be prone to " water hammer effect ", and then cause the intermittence shake of pipeline, and output flow is interrupted and inhomogeneous, not only have a strong impact on the accuracy of output flow, and easily damaged pipeline, increased maintenance cost.
Model utility content
The purpose of this utility model is to provide a kind of metering pump with buffering flow stabilizing function, is intended to solve in prior art, and what traditional metering pump adopted is reciprocating motion type displacement pump, and it exists following defect:
When metering pump inside moves back and forth, the flow of its output, pressure are intermittent, thereby easily cause occurring water hammer effect in the pipeline of metering pump, and then cause the intermittent shake of pipeline, and output flow is interrupted, inhomogeneous, have a strong impact on the accuracy of output flow.
The utility model is to realize like this, a kind of metering pump with buffering flow stabilizing function, comprise metering pump body, on described metering pump body, there is liquid entering hole and liquid outlet, described liquid outlet place is provided with the modulating valve for controlling fluid break-make, between described modulating valve and described metering pump body, be provided with the transfer tube of perforation, the upper end of described transfer tube is communicated with the buffering constant-current stabilizer for cushioning current stabilization, the lower end of described transfer tube is communicated with the liquid outlet of described metering pump body, and described transfer tube is communicated with described modulating valve.
Preferably, described buffering constant-current stabilizer comprises the body of hollow, is plugged in the pipe cap of described body upper end, and connects in the reducer union of described body lower end.
Further, the two ends of described reducer union arrange opening, and its upper end bore is greater than its lower end bore, and the top and bottom of described reducer union are tightly connected with the lower end of described body and the upper end of described transfer tube respectively.
Closer, described buffering constant-current stabilizer is communicated with described transfer tube by movable joint.
Nearly step ground again, described movable joint comprises upper connection, lower contact, and is arranged at the portion that screws between described upper connection and lower contact, and the lower ending opening of described upper connection and described reducer union is connected, and described lower contact and described transfer tube are connected.
Preferably, the liquid entering hole place on described metering pump body is communicated with the intake pipe for feed liquor, is communicated with the outlet pipe for fluid on described modulating valve.
Preferably, described modulating valve adopts and regulates ball valve.
Compared with prior art, a kind of metering pump with buffering flow stabilizing function the utility model proposes, by be provided with the buffering constant-current stabilizer for cushioning current stabilization between metering pump body and modulating valve, effectively avoid the generation of water hammer effect, thereby prevent the damage that the intermittent shake of pipeline causes, reduce the maintenance cost of device, and ensured continuity and the uniformity of device output flow, thereby improved the accuracy of output flow.
Brief description of the drawings
The metering pump structural representation with buffering flow stabilizing function that Fig. 1 provides for the utility model embodiment;
Fig. 2 for the utility model embodiment provide have buffering flow stabilizing function metering pump in cushion constant-current stabilizer partial cutaway schematic.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with specific embodiment, realization of the present utility model is described in detail.
As shown in Fig. 1～2, the preferred embodiment providing for the utility model.
The present embodiment provides a kind of metering pump with buffering flow stabilizing function, comprise pipe-line system, and be arranged on metering pump body 1 in this pipe-line system, modulating valve 2, buffering constant-current stabilizer 3, and transfer tube 4, wherein, pipe-line system does not all draw in the accompanying drawings, metering pump body 1 is fixedly mounted on base 5, on this metering pump body 1, have liquid entering hole 11 and liquid outlet 12, liquid entering hole 11 is arranged on the lower end of metering pump body 1, and liquid outlet 12 is arranged on the upper end of metering pump body 1, modulating valve 2 is arranged on the right side of metering pump body 1, and transfer tube 4 is arranged between metering pump body 1 and modulating valve 2, and herein, what transfer tube 4 adopted is three-way pipe, certainly, also can adopt the pipe of other structures, the upper end of transfer tube 4, lower end and middle part offer respectively upper end-hole, lower end mouth and central port, and each port of this transfer tube 4 is all mutually to connect, the lower end mouth of transfer tube 4 is communicated with the liquid outlet 12 of metering pump body 1, the upper end-hole of transfer tube 4 is communicated with buffering constant-current stabilizer 3, the central port of transfer tube 4 is communicated with modulating valve 2, herein, the effect of buffering constant-current stabilizer 3 is, to cushioning current stabilization from the fluid of metering pump body 1 interior outflow, fluid after buffering current stabilization is opened and is exported by the control of modulating valve 2, here, the effect of modulating valve 2 is break-makes of controlling by the fluid of metering pump body 1 interior output.
The above-mentioned metering pump with buffering flow stabilizing function has following features:
Adopt buffering constant-current stabilizer 3, it is arranged between above-mentioned metering pump body 1 and above-mentioned modulating valve 2, this buffering constant-current stabilizer 3, effectively avoid the interior water hammer effect that occurs of pipeline of dosing pump assembly, thereby prevent the damage that the intermittent shake of pipeline causes, reduce maintenance cost, and ensured continuity and the uniformity of output flow, thereby improved the accuracy of output flow.
In the present embodiment, above-mentioned buffering constant-current stabilizer 3 comprises body 31, pipe cap 32 and reducer union 33, and wherein, what body 31 adopted is the hollow columnar pvc pipe of both ends open, and in other embodiments, body 31 also can adopt the hollow tube of other materials; Pipe cap 32 is arranged on the upper end of body 31, and by the upper end open shutoff sealing of body 31, reducer union 33 is sealedly connected on the lower end of body 31, and be communicated with body 31, certainly, in other embodiments, according to actual conditions and demand, buffering constant-current stabilizer 3 can be also other forms of structure, is not limited to the structural type in the present embodiment.
The working principle of above-mentioned buffering constant-current stabilizer 3 is: when before the work of this dosing pump assembly, in the body 31 of above-mentioned buffering constant-current stabilizer 3, only have air, in the time that this dosing pump assembly is worked, because the resistance of pipe-line system moment is greater than the pressure of the air in above-mentioned body 31, now, segment fluid flow can flow and compress the air in it toward this body 31 is interior, air in body 31 can produce reaction force in by the process of fluid compression, this reaction force can buffer fluid and resistance and the effect of pulse impact force to pipeline of pipe-line system, the vibrations of whole pipe-line system are alleviated, herein, the resistance of pipe-line system refers to, pipeline in pipe-line system, the pipeline parts such as above-mentioned modulating valve 2 and above-mentioned transfer tube 4 and fluid are because of friction and stop the resistance producing, in the time of this dosing pump assembly intermittence, fluid in pipeline lost pressure and stops flowing because of moment, now, pressure in body 31 is greater than the pressure in pipe-line system, the interior compressed air release pressure of body 31, and then fluid in promotion pipe-line system continues to flow, thereby realize continuously, flow output uniformly.
The two ends of above-mentioned reducer union 33 have opening, and its upper end bore is greater than its lower end bore, the effect of this structure is, can play buffer function for the gas that enters and go out from its upper end from the lower end of reducer union 33, particularly, the upper end of reducer union 33 is connected and seals with the lower ending opening of above-mentioned body 31, and in addition, the lower end of reducer union 33 is connected and seals with the upper end-hole of above-mentioned transfer tube 4.
Between above-mentioned buffering constant-current stabilizer 3 and above-mentioned transfer tube 4, form and be connected by movable joint 6, this movable joint 6 comprises upper connection 61, lower contact 62 and screw portion 63, wherein, upper connection 61 is connected with the lower ending opening of above-mentioned reducer union 33, lower contact 62 is connected and sealing with the upper end-hole of above-mentioned transfer tube 4, in addition, screwing portion 63 is arranged between upper connection 61 and lower contact 62, turn screws portion 63 can control upper connection 61 and above-mentioned reducer union 33, the degree of tightness being connected between lower contact 62 and above-mentioned transfer tube 4, certainly, in other embodiments, movable joint 6 can be also other forms of structure, or can also form and be connected by other means between above-mentioned buffering constant-current stabilizer 3 and above-mentioned transfer tube 4.
In the present embodiment, the liquid entering hole 11 of above-mentioned metering pump body 1 goes out by connecting base to be communicated with the intake pipe 7 for feed liquor, the outer end of above-mentioned modulating valve 2 is communicated with the outlet pipe 8 for fluid by connecting base, like this, in whole dosing pump assembly, the path of flowing through of fluid is, fluid is entered by intake pipe 7, enter above-mentioned metering pump body 1 inside through above-mentioned liquid entering hole 11, then flow out from above-mentioned liquid outlet 12, then, the fluid cushioning after current stabilization through above-mentioned buffering constant-current stabilizer 3 enters the modulating valve 2 of unlatching through above-mentioned transfer tube 4, follow again, flow out through outlet pipe 8.
What above-mentioned modulating valve 2 adopted is regulates ball valve, and certainly, in other embodiments, as the case may be and demand, modulating valve 2 also can adopt the valve of other types.
In the present embodiment, in pipe-line system between liquid outlet 12 and the above-mentioned modulating valve 2 of above-mentioned metering pump body 1, above-mentioned buffering constant-current stabilizer 3 is installed, by this device, in the time that 1 to-and-fro motion of metering pump body makes liquid in pipeline accelerate to flow, resistance and liquid in pipe-line system accelerate to produce under the acting in conjunction of pulse impact force while flowing, the air cushioning in pipe-line system in constant-current stabilizer 3 can be compressed, to form damping buffering, reduced the water hammer effect that pipe-line system produces; In the reciprocating batch process of metering pump body 1, pipeline pressure can reduce, fluid in corresponding pipeline system slows down, now cushioning the interior compressed air of constant-current stabilizer 3 is discharged, discharge the liquid that pressure that compressed air forms can promote in pipe-line system and continue to flow, thus realize metering pump continuously, flow output uniformly.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. one kind has the metering pump of buffering flow stabilizing function, comprise metering pump body, on described metering pump body, there is liquid entering hole and liquid outlet, described liquid outlet place is provided with the modulating valve for controlling fluid break-make, it is characterized in that, between described modulating valve and described metering pump body, be provided with the transfer tube of perforation, the upper end of described transfer tube is communicated with the buffering constant-current stabilizer for cushioning current stabilization, the lower end of described transfer tube is communicated with the liquid outlet of described metering pump body, and described transfer tube is communicated with described modulating valve.
2. the metering pump with buffering flow stabilizing function as claimed in claim 1, is characterized in that, described buffering constant-current stabilizer comprises the body of hollow, is plugged in the pipe cap of described body upper end, and connects in the reducer union of described body lower end.
3. the metering pump with buffering flow stabilizing function as claimed in claim 2, it is characterized in that, the two ends of described reducer union arrange opening, and its upper end bore is greater than its lower end bore, the top and bottom of described reducer union are tightly connected with the lower end of described body and the upper end of described transfer tube respectively.
4. the metering pump with buffering flow stabilizing function as claimed in claim 3, is characterized in that, described buffering constant-current stabilizer is communicated with described transfer tube by movable joint.
5. the metering pump with buffering flow stabilizing function as claimed in claim 4, it is characterized in that, described movable joint comprises upper connection, lower contact, and be arranged at the portion that screws between described upper connection and lower contact, the lower ending opening of described upper connection and described reducer union is connected, and described lower contact and described transfer tube are connected.
6. the metering pump with buffering flow stabilizing function as described in claim 1～5 any one, is characterized in that, the liquid entering hole place on described metering pump body is communicated with the intake pipe for feed liquor, is communicated with the outlet pipe for fluid on described modulating valve.
7. the metering pump with buffering flow stabilizing function as claimed in claim 6, is characterized in that, described modulating valve adopts and regulates ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893058.4U CN203742962U (en) | 2013-12-31 | 2013-12-31 | Metering pump with function of buffering and stabilizing liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893058.4U CN203742962U (en) | 2013-12-31 | 2013-12-31 | Metering pump with function of buffering and stabilizing liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742962U true CN203742962U (en) | 2014-07-30 |
Family
ID=51342770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893058.4U Expired - Lifetime CN203742962U (en) | 2013-12-31 | 2013-12-31 | Metering pump with function of buffering and stabilizing liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742962U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107875925A (en) * | 2017-12-18 | 2018-04-06 | 重庆市沃利克环保设备有限公司 | Chemicals dosing plant |
| CN108854536A (en) * | 2017-05-15 | 2018-11-23 | 中国科学院上海有机化学研究所 | A kind of complexes of extracting and enriching lithium isotope |
| CN112343783A (en) * | 2020-11-05 | 2021-02-09 | 常州拓川泵业科技有限公司 | Metering pump with buffering and current stabilizing functions |
| CN113791001A (en) * | 2021-09-13 | 2021-12-14 | 重庆科技学院 | Device and method for testing internal resistance of viscoelastic fluid in porous medium |
-
2013
- 2013-12-31 CN CN201320893058.4U patent/CN203742962U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854536A (en) * | 2017-05-15 | 2018-11-23 | 中国科学院上海有机化学研究所 | A kind of complexes of extracting and enriching lithium isotope |
| CN107875925A (en) * | 2017-12-18 | 2018-04-06 | 重庆市沃利克环保设备有限公司 | Chemicals dosing plant |
| CN112343783A (en) * | 2020-11-05 | 2021-02-09 | 常州拓川泵业科技有限公司 | Metering pump with buffering and current stabilizing functions |
| CN113791001A (en) * | 2021-09-13 | 2021-12-14 | 重庆科技学院 | Device and method for testing internal resistance of viscoelastic fluid in porous medium |
| CN113791001B (en) * | 2021-09-13 | 2023-10-20 | 重庆科技学院 | Device and method for testing internal resistance of viscoelastic fluid in porous medium |
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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: 20140730 |