CN205175479U - Be used for low temperature medium process parameter measuring restricted aperture board conversion flange - Google Patents
Be used for low temperature medium process parameter measuring restricted aperture board conversion flange Download PDFInfo
- Publication number
- CN205175479U CN205175479U CN201520125014.6U CN201520125014U CN205175479U CN 205175479 U CN205175479 U CN 205175479U CN 201520125014 U CN201520125014 U CN 201520125014U CN 205175479 U CN205175479 U CN 205175479U
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- China
- Prior art keywords
- aperture
- diameter
- head piece
- cryogenic media
- low temperature
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- Withdrawn - After Issue
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Abstract
The utility model discloses a be used for low temperature medium process parameter measuring restricted aperture board conversion flange, restricted aperture board conversion flange is provided with the head piece of getting that is connected with upper reaches low temperature medium pipeline, relative opposite side is provided with the drilling of diameter for the setting value with getting the head piece, the setting value is less than the diameter of getting the head piece, the aperture of getting between head piece and the drilling is linear type symmetry aperture, this aperture divide into first sector hole footpath and second sector hole footpath, the diameter in first sector hole footpath equals to get the diameter of head piece, the diameter in second sector hole footpath equals the setting value, upper reaches low temperature medium pipeline inserts first sector hole footpath and forms sealing connection, the length that upper reaches low temperature medium pipeline inserted first sector hole footpath is greater than first sector hole length directly, drilling between taking things from the mouth of pipe to the low reaches pipe connection that inserts first sector hole upper reaches low temperature medium pipeline directly, form the restricted aperture board here, the low reaches pipeline passes through flange and restricted aperture board conversion flange joint, the low temperature medium is sent to low reaches through the restricted aperture board and is used for process parameter measuring instrument.
Description
Technical field
The utility model relates to petrochemical field, in particular to a kind of restriction orifice crossover flange measured for cryogenic media procedure parameter.
Background technology
For some medium and small petroleum chemical enterprises and the petrochemical equipment far away apart from ethylene production plant, for the ease of using and transporting, the accumulating of liquid ethylene has realistic meaning.In addition, domestic from improving energy structure and environmental protect situation angle, positive develop actively liquefied natural gas (LNG) (LNG) technology is that LNG receiving station project or natural gas liquefaction project all start one after another in various places.
Involved main technique medium is liquid ethylene and LNG, and ethylene temperature is-104 DEG C ~-102.35 DEG C; LNG temperature is-161.9 DEG C ~-158.7 DEG C.According to prior art, the detection bellows of pressure, differential flow instrument, fluid level transmitter all cannot adapt to the temperature range of low temperature like this.How to enable measurement instrument measure such cryogenic liquid be in engineering design must in the face of and the problem that must solve.
The abb. vocabulary related in the utility model is always as follows:
LEG: liquid ethylene
BOG: boil-off gas
EG: ethylene gas
LNG: liquefied natural gas (LNG)
Liquid ethylene temperature is-104 DEG C ~-102.35 DEG C, mainly forms in table 1:
Table 1
The temperature of LNG is-161.9 DEG C ~-158.7 DEG C, mainly forms in table 2:
Table 2
Because the bellows resistance to low temperature of transmitter is poor, so can only take measures the temperature of cryogenic media (as liquid ethylene, LNG etc.) is increased to bellows allowable temperature scope.The way that can expect is heated up by connecting pipe heat exchange, and connecting pipe is equivalent to Tube Sheet of Heat Exchanger, and the cryogenic media (as liquid ethylene, LNG etc.) in pipe and the air heat-exchange outside pipe, carry out gasification and heat up.The key of this method is the flow entering connecting pipe, and the flow entering connecting pipe is large, does not have heat transfer effect; Flow is little, measures unstable.
Utility model content
The utility model provides a kind of restriction orifice crossover flange measured for cryogenic media procedure parameter, in order to the temperature range of cryogenic media to be increased to the temperature range detecting bellows and adapt to.
For achieving the above object, the utility model provides a kind of restriction orifice crossover flange measured for cryogenic media procedure parameter, described restriction orifice crossover flange be provided be connected with upstream cryogenic media pipeline get head piece, the described relative opposite side of head piece of getting is provided with the boring that diameter is setting value, the diameter of head piece is got described in described setting value is less than, described aperture of getting between head piece and described boring is the symmetrical aperture of linear pattern, this aperture is divided into first paragraph aperture and second segment aperture, the diameter of head piece is got described in the diameter in described first paragraph aperture equals, the diameter in described second segment aperture equals described setting value, upstream cryogenic media pipeline inserts described first paragraph aperture and is formed and is tightly connected, the length that upstream cryogenic media pipeline inserts described first paragraph aperture is greater than the length in described first paragraph aperture, hole between downstream line junction from the mouth of pipe of the upstream cryogenic media pipeline inserting described first paragraph aperture, restriction orifice is formed at this, downstream line is connected with restriction orifice crossover flange by flange, cryogenic media is used for the instrument of procedure parameter measurement by restriction orifice fed downstream.
Further, described upstream cryogenic media pipeline is stainless-steel tube, adopts welded seal between described stainless-steel tube and described first paragraph aperture.
Further, described setting value is 2mm.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the restriction orifice crossover flange for the measurement of cryogenic media procedure parameter of the utility model embodiment;
Fig. 2 is that the utility model one is for the tonometric application example schematic diagram of cryogenic liquid.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structural representation of the restriction orifice crossover flange for the measurement of cryogenic media procedure parameter of the utility model embodiment, as shown in the figure, restriction orifice crossover flange be provided be connected with upstream cryogenic media pipeline get head piece, the opposite side relative with getting head piece is provided with the boring that diameter is setting value, setting value is less than the diameter getting head piece, the aperture of getting between head piece and boring is the symmetrical aperture of linear pattern, this aperture is divided into first paragraph aperture and second segment aperture, the diameter in first paragraph aperture equals the diameter getting head piece, the diameter in second segment aperture equals setting value, upstream cryogenic media pipeline inserts first paragraph aperture and is formed and is tightly connected, the length that upstream cryogenic media pipeline inserts described first paragraph aperture is greater than the length in described first paragraph aperture, hole between downstream line junction from the mouth of pipe of the upstream cryogenic media pipeline inserting described first paragraph aperture, restriction orifice is formed at this, downstream line is connected with restriction orifice crossover flange by flange, cryogenic media is used for the instrument of procedure parameter measurement by restriction orifice fed downstream.
Such as, upstream cryogenic media pipeline can be stainless-steel tube, adopts welded seal between stainless-steel tube and first paragraph aperture.
Such as, the setting value of above-mentioned bore diameter is 2mm.
By adopting above-mentioned restriction orifice crossover flange, well solve the problem that cryogenic media is measured, Fig. 2 is that the utility model one is for the tonometric application example schematic diagram of cryogenic liquid.In figure, 015 is restriction orifice crossover flange.
After adopting restriction orifice crossover flange of the present utility model, according to site test, pressure, differential flow instrument, fluid level transmitter are measured highly stable, meet measuring accuracy requirement completely, field instrument easy maintenance.
We are than having selected two schemes, and a kind of is the flow adopting needle valve to control to enter connecting pipe, and another kind adopts restriction orifice of the present utility model.
Project plan comparison is as shown in table 3:
Table 3
| Needle-valve pressure | Restriction orifice | |
| Price | High | Cheap |
| The place of production | Introduce | Domestic |
| Install | Relative difficulty | Simply |
| Cold insulation | Need | Do not need |
| Flow control | Adjustable | Non-adjustable |
| Maintenance | Need | Do not need |
In economy, use this programme can save substantial contribution for project, Cost comparisons is in table 4:
Table 4
Calculated by upper table, needed for single low temperature receiving station, the use amount of restriction orifice crossover flange is about about 300, and single receiving station project is cost-saved to be about 2,500,000 yuan (Renminbi).
As can be seen here, restriction orifice crossover flange of the present utility model all achieves significant effect in advance, practicality and economy.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or flow process might not be that enforcement the utility model is necessary.
One of ordinary skill in the art will appreciate that: the module in the device in embodiment can describe according to embodiment and be distributed in the device of embodiment, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the utility model embodiment technical scheme.
Claims (3)
1. the restriction orifice crossover flange measured for cryogenic media procedure parameter, it is characterized in that, described restriction orifice crossover flange be provided be connected with upstream cryogenic media pipeline get head piece, the described relative opposite side of head piece of getting is provided with the boring that diameter is setting value, the diameter of head piece is got described in described setting value is less than, described aperture of getting between head piece and described boring is the symmetrical aperture of linear pattern, this aperture is divided into first paragraph aperture and second segment aperture, the diameter of head piece is got described in the diameter in described first paragraph aperture equals, the diameter in described second segment aperture equals described setting value, upstream cryogenic media pipeline inserts described first paragraph aperture and is formed and is tightly connected, the length that upstream cryogenic media pipeline inserts described first paragraph aperture is greater than the length in described first paragraph aperture, hole between downstream line junction from the mouth of pipe of the upstream cryogenic media pipeline inserting described first paragraph aperture, restriction orifice is formed at this, downstream line is connected with restriction orifice crossover flange by flange, the instrument that cryogenic media is measured by restriction orifice fed downstream procedure parameter.
2. the restriction orifice crossover flange measured for cryogenic media procedure parameter according to claim 1, it is characterized in that, described upstream cryogenic media pipeline is stainless-steel tube, adopts welded seal between described stainless-steel tube and described first paragraph aperture.
3. the restriction orifice crossover flange measured for cryogenic media procedure parameter according to claim 1, it is characterized in that, described setting value is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520125014.6U CN205175479U (en) | 2015-03-03 | 2015-03-03 | Be used for low temperature medium process parameter measuring restricted aperture board conversion flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520125014.6U CN205175479U (en) | 2015-03-03 | 2015-03-03 | Be used for low temperature medium process parameter measuring restricted aperture board conversion flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205175479U true CN205175479U (en) | 2016-04-20 |
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ID=55739459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520125014.6U Withdrawn - After Issue CN205175479U (en) | 2015-03-03 | 2015-03-03 | Be used for low temperature medium process parameter measuring restricted aperture board conversion flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205175479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807516A (en) * | 2015-03-03 | 2015-07-29 | 中国寰球工程公司 | Restriction orifice crossover flange for measuring low-temperature medium process parameters |
-
2015
- 2015-03-03 CN CN201520125014.6U patent/CN205175479U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807516A (en) * | 2015-03-03 | 2015-07-29 | 中国寰球工程公司 | Restriction orifice crossover flange for measuring low-temperature medium process parameters |
| CN104807516B (en) * | 2015-03-03 | 2018-09-28 | 中国寰球工程公司 | A kind of restriction orifice crossover flange measured for cryogenic media procedure parameter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Two road 100012 Beijing city Chaoyang District high tech Industrial Park, No. 1. Patentee after: China Global Engineering Co. Ltd. Address before: Two road 100012 Beijing city Chaoyang District, high-tech Industrial Park No. 1 building D Room 204. Patentee before: China Huanqiu Engineering Co. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160420 Effective date of abandoning: 20180928 |
|
| AV01 | Patent right actively abandoned |