CN203837959U - Lower sampler of back washing tank - Google Patents
Lower sampler of back washing tank Download PDFInfo
- Publication number
- CN203837959U CN203837959U CN201420155881.XU CN201420155881U CN203837959U CN 203837959 U CN203837959 U CN 203837959U CN 201420155881 U CN201420155881 U CN 201420155881U CN 203837959 U CN203837959 U CN 203837959U
- Authority
- CN
- China
- Prior art keywords
- valve
- gear
- back washing
- circulating pump
- source
- 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
Links
Abstract
The utility model discloses a lower sampler of a back washing tank. The lower sampler comprises a sampling valve, an air source pressure regulating valve, an air source switching valve, a back washing circulating pump and a piston type motor. The valve port of the sampling valve is provided with a check valve, the sampling valve is connected with the back washing circulating pump through a pipe, the back washing circulating pump is connected with the air source switching valve through a pipe, the air source switching valve is connected with the air source pressure regulating valve through a pipe, and the back washing circulating pump is fixedly provided with the piston type motor. The lower sampler of the back washing tank has the advantages that the piston type motor is powered by compressed air, thereby being safe and explosion-proof, avoiding static electricity and sparks, being convenient to operate and facilitating repair and maintenance; the back washing circulating pump is sealed in structure and can avoid leakage of pressure oil; a driving gear and a driven gear are mounted inside the back washing circulating pump and can achieve forward and reverse rotation and accordingly achieve a back washing function.
Description
Technical field
The utility model relates to sampling thief field, relates in particular to a kind of recoil cleaning of evaporator down-sampler.
Background technology
At present, some petrochemical enterprises all wants sample examination to want tens of times every day, utilization be all existing pneumatic or manual tank down-sampler.In use, sample man will bleed off raffinate or the gas in valve to pneumatic tank down-sampler when sample samples, and raffinate is directly poured on to floor drain or directly puts into atmosphere, and contaminated environment, also, to personnel's injury, has caused economic loss; In use, while adopting wobble pump, pump draws while pushing away feels heavy especially to manual tank down-sampler, for women, sampling is gruelling, sometimes overexert, cause internal piston to be out of shape, repair and replacement are got up very inconvenient, while adopting pneumatic diaphragm pump, inner diaphragm is consumable accessory, easily aging, therefore says, existing tank down-sampler inconvenient operation, and can cause result of laboratory test inaccurate.Therefore, need a kind of new technical scheme to address the above problem.
Utility model content
The utility model provides a kind of recoil cleaning of evaporator down-sampler.
The technical solution adopted in the utility model: a kind of recoil cleaning of evaporator down-sampler, comprise sample valve, source of the gas pressure regulator valve and source of the gas transfer valve, this sampling thief also comprises backwash return pump and piston type motor, the valve port of sample valve is provided with non-return valve, sample valve is connected with backwash return pump by pipeline, on backwash return pump, by pipeline, be connected with source of the gas transfer valve, source of the gas transfer valve is also connected with source of the gas pressure regulator valve by pipeline, is fixed with piston type motor on backwash return pump.
The backwash return pump that the utility model adopts comprises the pump housing, gear and oil pocket, oil pocket comprises oil sucting cavity and pumping cavity, pump housing inner side is provided with gear, the both sides of gear are respectively oil sucting cavity and pumping cavity, in pumping cavity, be provided with decompression end face groove, gear comprises driving gear and follower gear, driving gear and follower gear engagement.
When backwash return pump is designed, in order to guarantee that gear can rotate flexibly, guarantee again to reveal minimum simultaneously, between gear and the pump housing, to be provided with gap.
The beneficial effects of the utility model: it is power that piston type motor is used pressurized air, and safety anti-explosive, does not produce static, spark, and easy to operate, Maintenance and Repair are simple; Backwash return pump sealing structure, can prevent that pressure oil from leaking; Inner driving gear and the follower gear installed of backwash return pump adopting, can realize the rotating of gear, thereby realize backwashing function.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of backwash return pump.
Wherein, 1, sample valve, 2, non-return valve, 3, pipeline, 4, source of the gas transfer valve, 5, source of the gas pressure regulator valve, 6, backwash return pump, 7, piston type motor, 8, the pump housing, 9, oil sucting cavity, 10, pumping cavity, 11, decompression end face groove, 12, driving gear, 13, follower gear.
Embodiment
As depicted in figs. 1 and 2, a kind of recoil cleaning of evaporator down-sampler, comprise sample valve 1, source of the gas pressure regulator valve 5 and source of the gas transfer valve 4, this sampling thief also comprises backwash return pump 6 and piston type motor 7, the valve port of sample valve 1 is provided with non-return valve 2, and sample valve 1 is connected with backwash return pump 6 by pipeline 3, on backwash return pump 6, by pipeline 3, is connected with source of the gas transfer valve 4, source of the gas transfer valve 4 is also connected with source of the gas pressure regulator valve 5 by pipeline 3, is fixed with piston type motor 7 on backwash return pump 6.
Backwash return pump 6 comprises the pump housing 8, gear and oil pocket, oil pocket comprises oil sucting cavity 9 and pumping cavity 10, the pump housing 8 inner sides are provided with gear, the both sides of gear are respectively oil sucting cavity 9 and pumping cavity 10, in pumping cavity 10, be provided with decompression end face groove 11, gear comprises driving gear 12 and follower gear 13, driving gear 12 and follower gear 13 engagements.
The principle of work of backwash return pump: when the driving gear 12 of backwash return pump 6 rotates in the direction of the clock, the engagement that is out of gear of oil sucting cavity 9 one sides, the gear teeth of gear exit between cog, sealed volume is increased, form parital vacuum, fluid in fuel tank, under the atmospheric effect in the external world, enters between cog through oil sucting cavity 9.Along with the rotation of gear, the fluid that sucks between cog is brought to opposite side, enters pumping cavity 10.At this moment the gear teeth enter engagement, and sealed volume is reduced gradually, and between gear, the fluid of part is extruded, and has formed the force feed process of backwash return pump 6.During gear engagement, teeth directional osculatory separates oil sucting cavity 9 and pumping cavity 10, works the oil effect of joining.When the driving gear 12 of backwash return pump 6 drives constantly rotation by piston type motor 7, the gear teeth are thrown off a side of engagement, because sealed volume becomes greatly constantly oil suction from fuel tank, the gear teeth enter a side of engagement, because sealed volume reduces constantly oil extraction, the principle of work of Here it is backwash return pump 6.
Beneficial effect: it is power that piston type motor 7 is used pressurized air, and safety anti-explosive, does not produce static, spark, and easy to operate, Maintenance and Repair are simple; Backwash return pump 6 sealing structures, can prevent that pressure oil from leaking; Inner driving gear 12 and the follower gear 13 installed of backwash return pump 6 adopting, can realize the rotating of gear, thereby realize backwashing function.
Claims (1)
1. a recoil cleaning of evaporator down-sampler, comprise sample valve, source of the gas pressure regulator valve and source of the gas transfer valve, it is characterized in that: this sampling thief also comprises backwash return pump and piston type motor, the valve port of described sample valve is provided with non-return valve, described sample valve is connected with backwash return pump by pipeline, on described backwash return pump, by pipeline, be connected with source of the gas transfer valve, described source of the gas transfer valve is also connected with source of the gas pressure regulator valve by pipeline, on described backwash return pump, be fixed with piston type motor, described backwash return pump comprises the pump housing, gear and oil pocket, described oil pocket comprises oil sucting cavity and pumping cavity, described pump housing inner side is provided with gear, the both sides of described gear are respectively oil sucting cavity and pumping cavity, in described pumping cavity, be provided with decompression end face groove, described gear comprises driving gear and follower gear, described driving gear and follower gear engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155881.XU CN203837959U (en) | 2014-04-02 | 2014-04-02 | Lower sampler of back washing tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155881.XU CN203837959U (en) | 2014-04-02 | 2014-04-02 | Lower sampler of back washing tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837959U true CN203837959U (en) | 2014-09-17 |
Family
ID=51515783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420155881.XU Expired - Fee Related CN203837959U (en) | 2014-04-02 | 2014-04-02 | Lower sampler of back washing tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092309A (en) * | 2015-08-31 | 2015-11-25 | 河北晨晓工业自动化设备有限公司 | Pneumatic under-tank sampler free of tank cleaning |
-
2014
- 2014-04-02 CN CN201420155881.XU patent/CN203837959U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092309A (en) * | 2015-08-31 | 2015-11-25 | 河北晨晓工业自动化设备有限公司 | Pneumatic under-tank sampler free of tank cleaning |
| CN105092309B (en) * | 2015-08-31 | 2017-09-19 | 河北晨晓工业自动化设备有限公司 | Exempt from clear tank air-driven type tank down-sampler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203837959U (en) | Lower sampler of back washing tank | |
| CN202578729U (en) | Hand-held type mining pneumatic anchor rope tension machine | |
| CN204076345U (en) | Glued board automatic shearing machine | |
| CN201539678U (en) | Practical hand-operated oil syringe | |
| CN203926236U (en) | Single pump dual-speed hydraulic system | |
| CN202202309U (en) | Manual/electric dual-purpose integrated hydraulic hoist | |
| PH22017000099U1 (en) | Sheet metal forming device | |
| CN203978266U (en) | A kind of coal mine gallery drilling rig all-hydraulic transmission system | |
| CN202612083U (en) | Knobby suction valve | |
| CN204877926U (en) | Double suction unit seals quimby pump | |
| CN102853043B (en) | Non-switching type mechanical reversing device of guide rod mechanism | |
| CN204817655U (en) | Novel piercing press | |
| CN201028991Y (en) | Device for fast sealing hole wall | |
| CN203272086U (en) | Novel pneumatic diaphragm pump for coal mine | |
| CN205117853U (en) | Double pump work switched systems | |
| CN204458280U (en) | The energy-efficient pneumatic diving diaphragm pump of noise free | |
| CN104493471A (en) | Auxiliary disassembly device for disassembly of differentials | |
| CN202360511U (en) | Automatic fuel-loading system of heading machine | |
| CN204371664U (en) | A kind of gear pump combined type bearing | |
| CN205147191U (en) | Simple and easy nail hammer of hydraulic drive | |
| CN204300041U (en) | A kind of compact pumping plant | |
| CN203114643U (en) | Device capable of shortening air exhaust process of sealing-free self-priming pump | |
| CN210239968U (en) | Vacuum pump detection device | |
| CN202091159U (en) | High-pressure mechanical sealing ground driving device of screw pump | |
| CN204458247U (en) | Speed reducer vacuum pumping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20160402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |