CN208588586U - Fluid delivery system - Google Patents

Abstract

The utility model provides a fluid conveying system, include: the conveying pipeline is provided with sampling holes and backflow holes at intervals along the conveying direction of the fluid; the sampling valve is provided with a first connecting port, a second connecting port and a sampling port, the first connecting port and the second connecting port are communicated through a communicating channel, and the sampling port is provided with an opening state communicated with the communicating channel and a closing state blocked from the communicating channel; and the connecting pipeline comprises a first connecting pipe and a second connecting pipe, the first connecting pipe is connected between the sampling hole and the first connecting port, and the second connecting pipe is connected between the second connecting port and the backflow hole. The technical scheme of the utility model solved effectively among the prior art before the sample need emit the pipeline in remain oil, lead to that working strength is big, inefficiency and influence the problem of sample accuracy.

Description

Fluid delivery system

Technical field

The utility model relates to oil fields to sample field, in particular to a kind of fluid delivery system.

Background technique

At present on crude oil Combined Treatment station or petroleum transferring station, crude oil sampling method is: sample point draws a root canal line, installation One DN15 ball valve.When sampling, operator is first discharged in " dead oil stagnant water " to the sample bucket in sampler pipeline, to guarantee to take The accuracy of sample, the continuous discharge of " dead oil stagnant water " needs 2~3 minutes show different value and synchronous progress according to aqueous instrument Sampling, can just contrast the comparability of artificial analysis data and instrument monitoring data, to verify the standard of instrument measurement in this way True error.The defect of this operating method is: first, often discharge is not thorough when discharge, influencing the accuracy of sample.Second, During " dead oil stagnant water " is discharged in operation, once fault will cause " sump oil sewage " spluttering, environmental pollution is formed；Thirdly emptying Discharge " dead oil stagnant water " causes waste.Fourth, during " dead oil stagnant water " is discharged in sampling, pernicious gas in oil samples Volatilization diffusion, causes harm to the human body, for the employee of long campaigns sample examination work, undoubtedly a kind of slow poisoning Process；Fifth, sample time is long, the labor intensity of employee is added somewhat to.

Utility model content

The utility model is intended to provide a kind of fluid delivery system, to solve to need to release pipeline before sampling in the prior art Middle residual oil leads to great work intensity, low efficiency and influences the problem of sampling accuracy.

To achieve the goals above, one aspect according to the present utility model provides a kind of fluid delivery system, packet Include: transfer pipeline has been positioned apart from sampling hole and return port along fluid conveying direction；Sampling valve has the first connector, the Two connectors and sample tap, the first connector and the second connector are connected to by communicating passage, and sample tap has and communicating passage The open state of connection and the closed state blocked with communicating passage；Connecting line, including the first connecting tube and the second connecting tube, First connecting tube is connected between sampling hole and the first connector, the second connecting tube be connected to the second connector and return port it Between.

Further, sampling valve includes valve body, spool and valve nozzle, and communicating passage runs through valve body, and communicating passage is on valve body Two ports be respectively formed the first connector and the second connector, valve nozzle is arranged on valve body, and sample tap is formed in valve nozzle, Spool is arranged in valve nozzle, and spool has the open position separated with valve nozzle and the closed position contacted with valve nozzle, at spool Sample tap is in the open state when open position, and when spool is in the closed position, sample tap is in close state.

Further, the outer surface of spool and the inner surface of valve nozzle are in the conical surface.

Further, the taper of the outer surface of spool is less than or equal to the taper of the inner surface of valve nozzle.

Further, the taper of the outer surface of spool is in 1:11 between 1:13, and the taper of the inner surface of valve nozzle is in 1:19 To between 1:21.

Further, right on the inner surface of any point and valve nozzle on the outer surface of spool when spool is in the closed position The distance between any answered is less than or equal to 1mm.

Further, valve nozzle is removably disposed on valve body by helicitic texture.

Further, sampling valve further includes connector, and connector is connected on valve body, and spool passes through connector, connector Inner surface be provided with internal screw thread, spool is threaded through the part in connector and is provided with external screw thread, and internal screw thread is mutually fitted with external screw thread With so that spool can move between closed position and open position.

Further, sampling valve further includes driving portion, and one end that spool is pierced by connector is arranged in driving portion.

Further, the downstream of sampling hole is arranged in return port.

Using the technical solution of the utility model, sampling valve is connected in parallel on the sampling hole of transfer pipeline by connecting line and returns Between discharge orifice.When needing to be sampled, staff can be such that sample tap is connected to communicating passage by opening sampling valve, defeated Send the fluid in pipeline that can be discharged from sampling hole through the first connecting tube and communicating passage finally by sample tap.Do not sampling When demand, sample tap and communicating passage are blocked, and the fluid flowed out from sampling hole also can be logical through being connected to by the first connecting tube Road, the second connecting tube and return port flow back to transfer pipeline.Fluid keeps flowing and and delivery pipe in connecting line and sampling valve State consistency in road is avoided and is wasted caused by the preceding discharge " dead oil stagnant water " of sampling, while also ensuring the accurate of sampling Property.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model. In the accompanying drawings:

Fig. 1 shows the structural schematic diagram of the embodiment of fluid delivery system according to the present utility model；

Schematic cross-sectional view when being in close state Fig. 2 shows the sampling valve of the fluid delivery system of Fig. 1；And

Fig. 3 show the fluid delivery system of Fig. 1 sampling valve it is in the open state when schematic cross-sectional view.

Wherein, the above drawings include the following reference numerals:

10, transfer pipeline；11, sampling hole；12, return port；20, sampling valve；21, valve body；22, spool；23, valve nozzle；24, Connector；25, driving portion；26, valve deck；31, the first connecting tube；32, the second connecting tube；91, the first connector；92, second connects Interface；93, sample tap；94, communicating passage.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Below Description only actually at least one exemplary embodiment be it is illustrative, never as to the application and its application or making Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, shall fall in the protection scope of this application.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.

Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached It does not need that it is further discussed in figure.

As shown in Figure 1 to Figure 3, the fluid delivery system of the present embodiment includes transfer pipeline 10, sampling valve 20 and connecting tube Road.Wherein, transfer pipeline 10 has been positioned apart from sampling hole 11 and return port 12 along fluid conveying direction, and sampling valve 20 has the One connector 91, the second connector 92 and sample tap 93.Connecting line include the first connecting tube 31 and the second connecting tube 32, first Connecting tube 31 is connected between sampling hole 11 and the first connector 91, and the second connecting tube 32 is connected to the second connector 92 and reflux Between hole 12.First connector 91 is connected to the second connector 92 by communicating passage 94, and sample tap 93 has and communicating passage The open state of 94 connections and the closed state blocked with communicating passage 94.

Using the technical solution of the present embodiment, sampling valve 20 is connected in parallel on the sampling hole 11 of transfer pipeline 10 by connecting line Between return port 12.When needing to be sampled, staff can by open sampling valve 20 make sample tap 93 be connected to Channel 94 is connected to, the fluid in transfer pipeline 10 can from sampling hole 11 through the first connecting tube 31 and communicating passage 94 finally by Sample tap 93 is discharged.When no sampling demand, sample tap 93 and communicating passage 94 are blocked, the stream flowed out from sampling hole 11 Body also can flow back to transfer pipeline 10 through communicating passage 94, the second connecting tube 32 and return port 12 by the first connecting tube 31.Fluid In connecting line and sampling valve 20 keep flowing and with the state consistency in transfer pipeline 10, that is, avoid sampling before discharge It is wasted caused by " dead oil stagnant water ", while also ensuring the accuracy of sampling.

Table 1

" sample volume " is the volume that sample is taken out from transfer pipeline in table 1, and " chemical examination volume " is that certain body is added The volume of sample to be tested after product necessity solution, " water " are the water content that chemical examination measures, and " instrument shows aqueous " is that measuring instrument is straight The moisture ratio of measurement display is connect, " chemical examination is aqueous " is the moisture ratio chemically examined by sample to be tested.

As shown in table 1, in former fluid delivery system sampling process, error is more than ± 0.05, especially first group of sample This error amount is already close to 1, and which results in former fluid delivery system sampling inaccuracy.And existing sampling method in contrast Using the fluid delivery system of the present embodiment, each set of error values effectively improves sample examination within positive and negative 0.05 Accuracy.

As shown in Figure 1, the downstream of sampling hole 11 is arranged in the return port 12 of the present embodiment, the stream of reflux can be reduced in this way Influence of the body to sample is taken out, improves the accuracy of sample examination.

Preferably, as shown in Figures 2 and 3, the sampling valve 20 of the present embodiment includes valve body 21, spool 22 and valve nozzle 23, is connected Circulation passage 94 runs through valve body 21, and two ports of the communicating passage 94 on valve body 21 are respectively formed the first connector 91 and second and connect Interface 92, valve nozzle 23 are arranged on valve body 21, and sample tap 93 is formed in valve nozzle 23, and spool 22 is arranged in valve nozzle 23, spool 22, with the open position isolated with valve nozzle 23 and the closed position contacted with valve nozzle 23, take when spool 22 is in the open position Sample mouth 93 is in the open state, and when spool 22 is in the closed position, sample tap 93 is in close state.The structure is simple, is easy to It realizes.

Preferably, in the sampling valve of the present embodiment 20, the outer surface of spool 22 and the inner surface of valve nozzle 23 are in the conical surface. When spool 22 is in the open position fluid can space between spool 22 and valve nozzle 23 flow out sample tap 93, realization takes Sample.

As shown in Fig. 2, the taper of the outer surface of the spool 22 of the present embodiment is less than or equal to the inner surface of valve nozzle 23 Taper, so that spool 22 can be moved swimmingly in valve nozzle 23, avoiding spool 22 from being stuck in valve nozzle 23 influences valve opening sampling.It is excellent Selection of land, the taper of the outer surface of the spool 22 of the present embodiment are 1:12, and the taper of the inner surface of valve nozzle 23 is 1:20.In other figures In in unshowned embodiment, the preferred taper of the outer surface of spool in 1:11 between 1:13, the inner surface of valve nozzle it is preferred Taper is in 1:19 between 1:21.When spool 22 is in the closed position, any point and valve nozzle 23 on the outer surface of spool 22 On inner surface it is the distance between more corresponding be less than or equal to 1mm, can make in this way sampling valve 20 neatly switch and The volume of " dead oil stagnant water " when down-sampling valve 20 in off position between valve nozzle 23 and spool 22.

As shown in Figures 2 and 3, the valve nozzle 23 of the present embodiment is removably disposed on valve body 21 by helicitic texture, just In installation.Sampling valve 20 further includes connector 24, and connector 24 is connected on valve body 21, and spool 22 passes through connector 24, connection The inner surface of part 24 is provided with internal screw thread, and the part that spool 22 is threaded through in connector 24 is provided with external screw thread, internal screw thread and outer Screw thread is adapted so that spool 22 can move between closed position and open position.Internal screw thread and external screw thread, which are adapted, makes valve Core 22 can be separated gradually with valve nozzle 23, changed the fluid flow rate in sample tap 93 gentle, reduced splashing when fluid outflow.

The sampling valve 20 of the present embodiment further includes driving portion 25 and valve deck 26, and driving portion 25, which is arranged, is pierced by connection in spool 22 One end of part 24, valve deck 26 are connected to the one end of connector 24 far from valve body 21, as shown in Figures 2 and 3, the driving of the present embodiment Portion 25 is handwheel.

In conclusion being had the effect that in oil field using the fluid delivery system of the present embodiment

1, sampling before to discharge tubing string extension " dead oil stagnant water " can directly sealed discharging to transfer pipeline downstream or In slop tank." dead oil stagnant water " is discharged in slop pail when avoiding emptying, reduces oil gas exposure duration in air；

2, directly opening sampling valve can sample, and oil sample keeps flowing without hydrops in connecting line, guarantees the standard of oil sample True property；

3, sample flow size is convenient for control, good seal performance；

4, the oil gas exposed time is short when sampling, and reduces contact of the operating staff with pernicious gas；

5, it reduces environmental pollution and crude oil wastes.

It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:

Sampling valve is connected in parallel between the sampling hole of transfer pipeline and return port by connecting line.It is needing to be sampled When, staff can be such that sample tap is connected to communicating passage by opening sampling valve, and the fluid in transfer pipeline can be from taking The first connecting tube of sample hole and communicating passage are discharged finally by sample tap.When no sampling demand, sample tap and company Circulation passage blocks, and the fluid flowed out from sampling hole also can be by the first connecting tube through communicating passage, the second connecting tube and return port Flow back to transfer pipeline.Fluid kept in connecting line and sampling valve flowing and with the state consistency in transfer pipeline, that is, avoid It is wasted caused by discharge " dead oil stagnant water " before sampling, while also ensuring the accuracy of sampling.

In the description of the present application, it is to be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, vertical, Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes System is merely for convenience of description the application and simplifies description, and in the absence of explanation to the contrary, these nouns of locality do not indicate that It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage Solution is the limitation to the application protection scope；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.

For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and " in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and And respective explanations are made to the opposite description in space used herein above.

In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this Apply for the limitation of protection scope.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of fluid delivery system characterized by comprising

Transfer pipeline (10) has been positioned apart from sampling hole (11) and return port (12) along fluid conveying direction；

Sampling valve (20) has the first connector (91), the second connector (92) and sample tap (93), first connector (91) it is connected to second connector (92) by communicating passage (94), the sample tap (93) has and the communicating passage (94) open state being connected to and the closed state blocked with the communicating passage (94)；

Connecting line, including the first connecting tube (31) and the second connecting tube (32), first connecting tube (31) are connected to described Between sampling hole (11) and first connector (91), second connecting tube (32) is connected to second connector (92) Between the return port (12).

2. fluid delivery system according to claim 1, which is characterized in that the sampling valve (20) include valve body (21), Spool (22) and valve nozzle (23), the communicating passage (94) run through the valve body (21), and the communicating passage (94) is in the valve Two ports on body (21) are respectively formed first connector (91) and second connector (92), the valve nozzle (23) It is arranged on the valve body (21), the sample tap (93) is formed in the valve nozzle (23), and the spool (22) is arranged in institute It states in valve nozzle (23), the spool (22) has the open position separated with the valve nozzle (23) and contacts with the valve nozzle (23) Closed position, when the spool (22) is in the open position, the sample tap (93) is in the open state, when The spool (22) is in the sample tap (93) when the closed position and is in the closed state.

3. fluid delivery system according to claim 2, which is characterized in that the outer surface of the spool (22) and the valve The inner surface of mouth (23) is in the conical surface.

4. fluid delivery system according to claim 3, which is characterized in that the taper of the outer surface of the spool (22) is small In or be equal to the valve nozzle (23) inner surface taper.

5. fluid delivery system according to claim 4, which is characterized in that the taper of the outer surface of the spool (22) exists 1:11 is between 1:13, and the taper of the inner surface of the valve nozzle (23) is in 1:19 between 1:21.

6. fluid delivery system according to claim 2, which is characterized in that when the spool (22) are in the close stance When setting, any point is the distance between more corresponding on the inner surface of the valve nozzle (23) on the outer surface of the spool (22) Less than or equal to 1mm.

7. fluid delivery system according to claim 2, which is characterized in that the valve nozzle (23) is removable by helicitic texture It is arranged in unloading on the valve body (21).

8. fluid delivery system according to claim 2, which is characterized in that the sampling valve (20) further includes connector (24), the connector (24) is connected on the valve body (21), and the spool (22) passes through the connector (24), the company The inner surface of fitting (24) is provided with internal screw thread, and the part that the spool (22) is threaded through in the connector (24) is provided with outer Screw thread, the internal screw thread and the external screw thread are adapted so that the spool (22) can be in the closed position and the unlatching It is moved between position.

9. fluid delivery system according to claim 8, which is characterized in that the sampling valve (20) further includes driving portion (25), the driving portion (25), which is arranged, is pierced by one end of the connector (24) in the spool (22).

10. fluid delivery system according to claim 1, which is characterized in that return port (12) setting takes described The downstream in sample hole (11).