CN204228470U - A kind of tank down-sampler - Google Patents
A kind of tank down-sampler Download PDFInfo
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- CN204228470U CN204228470U CN201420640873.4U CN201420640873U CN204228470U CN 204228470 U CN204228470 U CN 204228470U CN 201420640873 U CN201420640873 U CN 201420640873U CN 204228470 U CN204228470 U CN 204228470U
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Abstract
The utility model relates to a kind of tank down-sampler, and comprise sample can body and be arranged on this external sampling box of sample can, described sampling box comprises casing and is arranged on the magnetic drive pump for driving sample solution to circulate in casing; The entrance of described magnetic drive pump is connected in series a sample lines, outlet serial connection one return line; Described sample lines comprises upper, middle and lower sampling adapter and circulation adapter, and the sampling adapter of these upper, middle and lower is connected in series in Y type is respectively formed by upper, middle and lower feed tube and upper, middle and lower drain pipe of sampling of sampling respectively; The input end of described upper, middle and lower sampling feed tube is connected in series with upper, middle and lower sampling pipe in sample can body respectively.The utility model has the advantage of: the sample lines compact conformation of tank down-sampler of the present utility model, achieve tank down-sampler zero leakage requirement, improve the security performance of filling with down-sampler.
Description
Technical field
The utility model belongs to petrochemical industry, relates to a kind of tank down-sampler, particularly relates to the tank down-sampler of a kind of pot liquid sampling.
Background technology
Tank down-sampler is confession under directions pot liquid sampling use, for gathering the tank down-sampling facility of oil product sample, comprising and being located at the outer part (comprising connecting tube, pump and valve etc.) of sampling pipe in tank and annex and tank.This kind of sampling thief does not go up tank deck and the facility producing " automatically " or " semi-automatic " to meet oil sampling.Tank down-sampler helps primarily of up-sampling pipe, middle sampling pipe, down-sampling pipe, floating drum ball float, flexible connecting pipe, manual pump, fixed mount and paving and supports composition.
The patent No. is the utility model patent of CN 201247166Y, a kind of tank down-sampler is by ball float, stay pipe, top sampling pipe, middle part sampling pipe, bottom sampling pipe and sampling box composition, ball float, stay pipe, upper, middle and lower three sampling pipes are contained in tank, upper, middle and lower three sampling pipes are banded on stay pipe, sampling box is contained in the outer position near bottom of tank, the lower end of three sampling pipes is all stretched in sampling box, sampling box is by casing, panel, each adapter, ball valve, two direction changeover valves and wobble pump composition, each adapter, upper, middle and lower three sampling pipes in two direction changeover valves and wobble pump and tank are connected, wobble pump is by cylinder body, piston, connecting rod, crank and liquid in-out pipe, liquid in-out mouth forms, piston is contained in cylinder body, connecting rod one end and piston are connected, the other end and and rocking arm be connected, cylinder body one end and turnover oil pipe are connected, the other end and oil inlet and outlet are connected.
In above-mentioned patent, wobble pump resistant material welding manufacture in sampling box forms, the sealing of pump, adopt No leakage profile of tooth fiberfill as seal, its shortcoming is: adopt wobble pump as ebullator, the seal form of pump is packing seal in motive seal, because packing seal is a kind of contact sealing, therefore friction and wear problem is certainly existed, and the size of friction and wearing and tearing, depend mainly on the snap-in force of gland, pressure can improve greatly sealing effectiveness, but the wearing and tearing of power consumption and axle sleeve can be strengthened, otherwise then can produce comparatively gross leak.
Therefore, can ensure that the filling down-sampler of zero leakage is imperative when researching and developing a kind of compact conformation, use.Through retrieval related documents, do not find the same or analogous technical scheme with the utility model.
Utility model content
The technical problems to be solved in the utility model is to provide the tank down-sampler of a kind of compact conformation, good sealing effect, guarantee zero leakage.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of tank down-sampler, comprise a sample can body and and be arranged on this external sampling box of sample can, sampling pipe in tank that one stay pipe and three are respectively used to sample can internal upper part, middle part and lower liquid is installed in described sample can body, in this tank, sampling pipe is fixed on stay pipe, described stay pipe upper end chain sling one ball float, seat supports is restrained in the bottom of sample can body by one in lower end; Described sampling box is fixed on the bottom outside sample can body by flange;
Its innovative point is: described sampling box comprises a casing and to be arranged in this casing and magnetic drive pump for driving sample solution to circulate; The entrance of described magnetic drive pump is connected in series a sample lines, serial connection one return line in outlet;
Described sample lines comprises the sampling bye-pass that a global cycle be connected with magnetic drive pump entrance is taken over and three are connected in parallel on this global cycle and take over, each sampling bye-pass is serially connected in these two logically switches ball valve input ends and the sampling feed tube be connected with sampling pipe in corresponding tank and two are serially connected in these two the logical sampling drain pipes switching ball valve two output terminals is respectively in series and forms primarily of one or two the one logical ball valve, that switches, a wherein sampling drain pipe access global cycle adapter, another sampling drain pipe is used for sampling; Described each sampling feed tube also installs a straight-through valve;
Described return line comprises a recirculatory pipe, and the input end of this recirculatory pipe is connected with magnetic force delivery side of pump, and output terminal extends in sample can body, also installs one jiao of pass ball valve on the return line.
Further, described magnetic drive pump adopts pneumatic magnetic pump, and is equipped with air filtration pressure regulator valve at the air intake opening place of its correspondence.
The utility model has the advantage of:
Tank down-sampler of the present utility model, in sampling box, pipeline is a closed circuit be made up of sample lines and return line, when to tank body internal upper part liquid sample, first the straight-through valve of sampling feed tube is opened, regulate two one logical switching ball valves, liquid is made to enter in circulation adapter, and be pumped to return line by pump, in final inflow tank, pot liquid is circulated to be entered in sample lines and return line, when after circulation for several times, make the sample in sample lines fresh, now regulate two one logical switching ball valves, the sampling drain pipe being used in sampling is communicated with, now sample, this sampling process is simple to operate, and the convenient work controlling each pipeline is in tank, in, the liquid of bottom carries out cycle sampling, ensure to take out fresh liquid, pipeline structure is compact, and should for adopting magnetic drive pump by traditional wobble pump, the movable sealing structure easily revealed is converted into the static seal structure of zero leakage, achieve tank down-sampler zero leakage requirement, improve the security performance of filling with down-sampler,
Magnetic drive pump of the present utility model adopts pneumatic magnetic pump, be equipped with air filtration pressure regulator valve at air intake opening place, facilitate the work of regulation and control pneumatic magnetic pump, better to control the flow velocity of liquid in sample lines and return line, simple to operate, and convenient, fast.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model tank down-sampler.
Fig. 2 is the structural representation for sampling box in the utility model tank down-sampler.
Fig. 3 is A direction view in Fig. 2.
Embodiment
Embodiment 1
As Figure 1-3, the utility model discloses a kind of tank down-sampler, comprise a sample can body 1 and and be arranged on this external sampling box 2 of sample can, sampling pipe 4 in tank that one stay pipe 3 and three are respectively used to sample can internal upper part, middle part and lower liquid is installed in sample can body 1, in this tank, sampling pipe 4 is fixed on stay pipe 3, stay pipe 3 upper end chain sling one ball float, lower end is supported on the bottom of sample can body 1 by a tube bank bearing 5; Sampling box 2 is fixed on the bottom outside sample can body 1 by flange 6.
Sampling box 2 comprises a casing 7 and to be arranged in this casing 7 and magnetic drive pump 8 for driving sample solution to circulate; The entrance of magnetic drive pump 8 is connected in series a sample lines, serial connection one return line in outlet.In the present embodiment,
In order to meet tank down-sampler zero leakage requirement, improve the security performance of filling with down-sampler, the flow velocity of liquid in better control sample lines and return line, magnetic drive pump 8 adopts pneumatic magnetic pump, and air filtration pressure regulator valve 17 is equipped with at the air intake opening place of its correspondence, the movable sealing structure easily revealed is converted into the static seal structure of zero leakage, achieves tank down-sampler zero leakage requirement.
Sample lines comprises a global cycle adapter 9 be connected with magnetic drive pump 8 entrance and three sampling bye-passes be connected in parallel in this global cycle adapter 9, each sampling bye-pass is serially connected in these two logically switches ball valve 10 input ends and the sampling feed tube 11 be connected with sampling pipe in corresponding tank 4 and two are serially connected in these two the logical sampling drain pipes 12,13 switched on ball valve 10 two output terminals is respectively in series and forms primarily of one or two the one logical ball valve 10, that switches, drain pipe 12 of wherein sampling accesses global cycle adapter 9, and sampling drain pipe 13 is for sampling; Each sampling feed tube 11 is also installed a straight-through valve 14.
Return line comprises a recirculatory pipe 15, and the input end of this recirculatory pipe 15 is connected with the outlet of magnetic drive pump 8, and output terminal extends in sample can body 1, also installs one jiao of pass ball valve 16 on the return line.
Principle of work:
When in tank body during liquid sample, first open the straight-through valve of sampling feed tube, regulate two one logical switching ball valves, make liquid enter in circulation adapter, and be pumped to return line by pump, in final inflow tank, pot liquid is circulated and enters in sample lines and return line, when after circulation for several times, sample in sample lines is fresh, now regulate two one logical switching ball valves, the sampling drain pipe being used in sampling is communicated with, and now samples; In, the sampling order of bottom sample is all like this.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a tank down-sampler, comprise a sample can body and and be arranged on this external sampling box of sample can, sampling pipe in tank that one stay pipe and three are respectively used to sample can internal upper part, middle part and lower liquid is installed in described sample can body, in this tank, sampling pipe is fixed on stay pipe, described stay pipe upper end chain sling one ball float, seat supports is restrained in the bottom of sample can body by one in lower end; Described sampling box is fixed on the bottom outside sample can body by flange;
It is characterized in that: described sampling box comprises a casing and to be arranged in this casing and magnetic drive pump for driving sample solution to circulate; The entrance of described magnetic drive pump is connected in series a sample lines, serial connection one return line in outlet;
Described sample lines comprises the sampling bye-pass that a global cycle be connected with magnetic drive pump entrance is taken over and three are connected in parallel on this global cycle and take over, each sampling bye-pass is serially connected in these two logically switches ball valve input ends and the sampling feed tube be connected with sampling pipe in corresponding tank and two are serially connected in these two the logical sampling drain pipes switching ball valve two output terminals is respectively in series and forms primarily of one or two the one logical ball valve, that switches, a wherein sampling drain pipe access global cycle adapter, another sampling drain pipe is used for sampling; Described each sampling feed tube also installs a straight-through valve;
Described return line comprises a recirculatory pipe, and the input end of this recirculatory pipe is connected with magnetic force delivery side of pump, and output terminal extends in sample can body, also installs one jiao of pass ball valve on the return line.
2. tank down-sampler according to claim 1, is characterized in that: described magnetic drive pump adopts pneumatic magnetic pump, and is equipped with air filtration pressure regulator valve at the air intake opening place of its correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420640873.4U CN204228470U (en) | 2014-10-31 | 2014-10-31 | A kind of tank down-sampler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420640873.4U CN204228470U (en) | 2014-10-31 | 2014-10-31 | A kind of tank down-sampler |
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| Publication Number | Publication Date |
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| CN204228470U true CN204228470U (en) | 2015-03-25 |
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| CN201420640873.4U Active CN204228470U (en) | 2014-10-31 | 2014-10-31 | A kind of tank down-sampler |
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Cited By (3)
| 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 |
| CN105300741A (en) * | 2015-11-30 | 2016-02-03 | 湖北万安环保石化设备有限公司 | Under-pot adherence sampler |
| CN109813570A (en) * | 2019-02-19 | 2019-05-28 | 中储粮镇江粮油有限公司 | One vegetable oil automatic sampler |
-
2014
- 2014-10-31 CN CN201420640873.4U patent/CN204228470U/en active Active
Cited By (4)
| 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 |
| CN105300741A (en) * | 2015-11-30 | 2016-02-03 | 湖北万安环保石化设备有限公司 | Under-pot adherence sampler |
| CN109813570A (en) * | 2019-02-19 | 2019-05-28 | 中储粮镇江粮油有限公司 | One vegetable oil automatic sampler |
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