CN203808045U - Freezer for coaxial liquid supply pipe and liquid return pipe - Google Patents
Freezer for coaxial liquid supply pipe and liquid return pipe Download PDFInfo
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- CN203808045U CN203808045U CN201420196262.5U CN201420196262U CN203808045U CN 203808045 U CN203808045 U CN 203808045U CN 201420196262 U CN201420196262 U CN 201420196262U CN 203808045 U CN203808045 U CN 203808045U
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Abstract
A freezer for a coaxial liquid supply pipe and liquid return pipe comprises the liquid supply pipe, the liquid return pipe and a freezing pipe, wherein the liquid supply pipe and the liquid return pipe are both made of polyethylene plastics or polyvinyl chloride, the liquid supply pipe and the liquid return pipe are coaxially inserted in a freezing pipe, the diameter of the liquid return pipe is larger than the diameter of the liquid supply pipe, the liquid return pipe is arranged outside the liquid supply pipe in a sleeved mode, the part, extending out of the freezing pipe, of the liquid return pipe is provided with a first liquid return valve, a second liquid return valve is arranged at the outer side of the upper end of the freezing pipe, a first sealing plate surrounding the liquid supply pipe and sealing the liquid return pipe is arranged at the top end of the liquid return pipe, and a second sealing plate surrounding the liquid return pipe and sealing the freezing pipe is arranged at the top end of the freezing pipe. According to the freezer for the coaxial liquid supply pipe and liquid return pipe, the space positions of the liquid supply pipe and the liquid return pipe in the freezing pipe are changed, on the premise of not increasing the diameter of the freezing pipe and the saline water flow amount, the pressure of saline water in the liquid supply pipe can be effectively reduced, cold flow transmission is controlled, and the cold transmission efficiency is improved.
Description
Technical field
The utility model relates to the technical field of manually freezing, and relates in particular to a kind of coaxial for liquid back pipe frigo.
Background technology
Freezing process originates from weather freezing, due to development and the application of artificial cooling technology, has produced manually and has freezed.Traditionally, more general manually freezing is to use the indirect refrigeration method of salting liquid, be exactly salt (as CaCl2) solution is freezing by freon (or ammonia) refrigeration compressor after, reduce to cryogenic fluid, set it as in the pipeline that refrigerant buries underground in the soil body and circulate, carry out interchange of heat with the soil body, absorbent earth body heat content, increases self sensible heat, by continuous circularly cooling, surrounding soil is freezed, reach the object of reinforcing and the stable soil body.Adopt artificial refrigeration soil mass consolidation (freezing process), can make the most of water freezing in the soil body, this has not only improved native intensity, has strengthened stability and the globality of the soil body, and can reach the incomparable water isolating of other water-stopping method.Compared with other construction technology, it can effectively strengthen soil body stability, reduces distortion, completely cut off underground water.
Freeze-wellboring is one of main specific process of shaft building in caving ground.Before pit shaft is dug; by the method for artificial cooling, pit shaft rock-soil layer is around frozen into cylinder---the frost wall of sealing, to resist water, soil pressure; completely cut off the contact of underground water and pit shaft, then under the protection of frost wall, dig a kind of special sinking method of block work.
The freezing process history of existing more than 140 year.Wales, Britain south in 1862, in construction foundation working, has first been used artificial cooling method to reinforce soil.German engineer Bo Cishu (F.H.Poetsch) in 1883, in German Alba colliery, having dug the degree of depth by freezing process is the pit shaft of 103 meters, has obtained freeze-wellboring technical patent.Adopt in the world the more country of freeze-wellboring as Germany, Britain, Poland, Canada and the former Soviet Union etc., maximum frozen depth has all exceeded 600m, and wherein the Bo Er of Britain has reached 930m than the sylvite ore depth of frost penetration.Colliery, the walnut valley auxiliary shaft freezing engineering that at present the deep frozen shaft in the world is China, the depth of frost penetration is 950m.
Present stage, coal remained the main energy sources of China.Along with the rapid growth of national economy, the demand of coal is increasing, and especially in recent years, in economically developed and comparatively developed regions, energy shortage problem started again manifest and be on the rise.And on the other hand, along with the exploitation energetically of coal resources, owing to being located in or closing on China developed area and compare Bao coalfield, alluvium, the overwhelming majority is fully developed, wherein the resource in many coalfields is exhausted, can not meet the energy demand that China increases at present day by day, thereby in order to meet national product demand, extremely need on the one hand to develop the coalfield of special thick alluvium under covering; Shift to western Soft Rock Area the Yi You eastern region, main battle ground of coal in China exploitation on the other hand, and under existing situation, freezing technology faces some new problems:
1) in shaft building process is freezed in Te Hou alluvium, eastern region, complete dark freezing technology still can meet the needs of current freezing engineering on technological layer, but consider from economic aspect, there is the problem of cold serious waste, incompatible with the current national strategy of sustainable development.
2) in the shaft building process of western Soft Rock Area, due to west area engineering geology and hydrogeological understanding and experience relative deficiency, well verify hydrogeologic data is inaccurate, well yield grave fault in the prediction inflow of water providing and actual tunneling process, the well accident of flooding causing is of common occurrence, and the pit shaft going wrong substantially all needs to adopt freezing process to carry out next step construction.In this type of engineering frozen construction, top molded borehole wall section closure of freezing wall water shutoff, frost wall thinner thickness; Bottom freeze section need to be resisted Water And Earth Pressures, and frost wall thickness is thicker, and existing complete dark freezing technology easily by freezing the molded top borehole wall, produces second accident in this type of freezing engineering of processing.
Partial insulation frigo conventional in current engineering is as Fig. 1, it comprises the liquid back pipe 10 that feed pipe 1, freezing pipe 3, liquid back pipe valve 5, upper sealing plate 2, lower shrouding 8, base cone 9 and plastic material PE that plastic material PE makes make, its work structuring and principle are: freezing pipe 3, upper sealing plate 6, lower shrouding 8 and base cone 9 form an entirety by welding, inside there are feed pipe 1 and liquid back pipe 10, hypothermic saline flows into by feed pipe 1, along freezing pipe 3 inwalls to upper reaches, cold is passed to stratum by freezing pipe 3, and salt solution flows out freezing pipe 3 by liquid back pipe valve 5.
There is following defect in this frigo: feed pipe 1 and liquid back pipe 10 are placed side by side in freezing pipe, along with the increase of the depth of frost penetration and top need the increase of soaking zone, the length of feed pipe 1 and liquid back pipe 10 all needs to increase, under the constant precondition of frigo flow, pressure in feed pipe 1 and liquid back pipe 10 will increase, exceeding its voltage endurance capability destroys, if reduce flow, reduce pressure and do not reach again expection freezing efficiency, reduce overpressure if increase the caliber of feed pipe 1 and liquid back pipe 10, need the diameter of freezing pipe 3 to increase, cause rolled steel dosage to increase, and increase and freezed pore-creating difficulty, increase engineering cost, the subject matter of its existence is in Frozen Deep engineering, to use the freezing pipe diameter needing to increase, and causes rolled steel dosage to increase, and has increased and freeze pore-creating difficulty, increases engineering cost.
For this reason, designer of the present utility model is because above-mentioned defect, by concentrating on studies and designing, is comprehensively engaged in for a long time experience and the achievement of related industry for many years, and research and design goes out a kind of coaxial for liquid back pipe frigo, to overcome above-mentioned defect.
Utility model content
The technical problems to be solved in the utility model is: the frigo of prior art uses the freezing pipe diameter needing to increase in Frozen Deep engineering, causes rolled steel dosage to increase, and has increased and freeze pore-creating difficulty, increases engineering cost.
For addressing the above problem, the utility model discloses a kind of coaxial liquid back pipe frigo that supplies, comprise feed pipe, liquid back pipe and freezing pipe, it is characterized in that:
Described feed pipe, liquid back pipe are made by vinyon or igelite;
Described feed pipe and liquid back pipe are coaxially inserted in described freezing pipe, and the diameter of described liquid back pipe is greater than the diameter of described feed pipe and is sleeved on outside described feed pipe,
The part that described liquid back pipe stretches out freezing pipe is provided with fluid valve first time, the outside, upper end of described freezing pipe is provided with fluid valve second time, the top of described liquid back pipe is provided with the first shrouding that surrounds described feed pipe and seal described liquid back pipe, and the top of described freezing pipe is provided with the second shrouding that surrounds described liquid back pipe and seal described freezing pipe.
Wherein: described freezing pipe is hollow circle tube, and its bottom is sealed by lower shrouding, and the lower end of described lower shrouding is also provided with base cone.
Wherein: the 1/6-1/4 of the diameter that the diameter of described feed pipe is freezing pipe, the 1/3-2/3 that the diameter of described liquid back pipe is freezing pipe.
Wherein: the diameter of described feed pipe is freezing pipe 1/5, the diameter of described liquid back pipe is freezing pipe 3/5.
Wherein: the 2/3-2 of the diameter that the distance between the bottom of described feed pipe and the bottom of described freezing pipe is feed pipe is size doubly, and the distance that described liquid back pipe inserts in described freezing pipe is the 1/3-1/2 of freezing pipe length.
Known by said structure, the coaxial liquid back pipe frigo that supplies of the present utility model has following technique effect:
1) locus that has adopted change feed pipe and liquid back pipe to arrange in freezing pipe, is not increasing under the precondition of freezing pipe diameter and brine flow, can effectively reduce feed pipe inner salt water pressure; Improved cooling effect simultaneously;
2) vinyon or polyvinyl chloride for liquid back pipe, has improved the heat-insulating property of liquid back pipe and the heat insulation effect of frigo, reaches the object that improves cold quantity transmission efficiency.
Detailed content of the present utility model can obtain by explanation described later and institute's accompanying drawing.
Brief description of the drawings
Fig. 1 has shown the structural representation of frigo in prior art;
Fig. 2 has shown that the utility model coaxially supplies the structural representation of liquid back pipe frigo;
Fig. 3 A shown A-A in Fig. 2 to sectional view;
Fig. 3 B shown B-B in Fig. 2 to sectional view.
Detailed description of the invention
Referring to Fig. 2 to Fig. 3 A, B, show of the present utility model coaxial for liquid back pipe frigo.
The described coaxial liquid back pipe frigo that supplies comprises feed pipe 11, liquid back pipe 12 and freezing pipe 13.
Wherein, described feed pipe 11 is made up of vinyon or igelite (PE), and described liquid back pipe 12 is made up of vinyon or igelite (PVC).
Described freezing pipe 13 is hollow circle tube, and its bottom is sealed by lower shrouding 18, and the lower end of described lower shrouding 18 is also provided with base cone 19.
Described feed pipe 11 and liquid back pipe 12 are coaxially inserted in described freezing pipe 13 (referring to Fig. 2), the diameter of described feed pipe 11 is the 1/6-1/4 of the diameter of freezing pipe 13, therefore being greater than the diameter of described feed pipe 11, the diameter of described liquid back pipe 12 is sleeved on outside described feed pipe 11, its diameter is the 1/3-2/3 of freezing pipe, to realize better effect, preferably, the diameter of described feed pipe 11 is 1/5 of freezing pipe 13, and the diameter of described liquid back pipe 12 is freezing pipe 3/5.
Wherein, the distance between the bottom of described feed pipe 11 and the bottom of described freezing pipe 13 should ensure fully flowing of fluid, also will ensure the cooling performance of bottom, and preferred distance is the doubly size of 2/3-2 of the diameter of feed pipe 11.
Described liquid back pipe 12 inserts distance in described freezing pipe 13 and is preferably the 1/3-1/2 of freezing pipe 13 length, and the part that liquid back pipe 12 stretches out freezing pipe 13 is provided with fluid valve 15 first time, the outside, upper end of described freezing pipe 13 is provided with fluid valve 17 second time, the top of described liquid back pipe 12 is provided with the first shrouding 14 that surrounds described feed pipe 11 and seal described liquid back pipe 12, the top of described freezing pipe 13 is provided with the second shrouding 16 that surrounds described liquid back pipe 12 and seal described freezing pipe 13, described feed pipe 11 stretches out described liquid back pipe 12 and is provided with feed flow valve (not shown).
Pass through said structure, feed pipe 11, liquid back pipe 12 and freezing pipe 13 in the application coaxially arrange, can realize stable freezing efficiency, flowing out freezing pipe 13 by liquid back pipe 12 can effectively freeze the stratum of freezing pipe 13 bottoms, can effectively freeze the stratum on freezing pipe 13 tops and flow out freezing pipe 13 by second time fluid valve 17, thereby can obtain useful freezing efficiency in the time that deep layer is freezed.
And coaxial setting, can effectively reduce the fluid pressure in feed pipe, the runner of double back liquid also makes heat insulation effect more obvious.
Meanwhile, the special diameter of feed pipe 11 and liquid back pipe 12 and length setting in the application, be that applicant obtains by long-term experiment and creative work, and this set makes the flow regime between feed flow and time liquid more stable, and refrigerating effect is better.
Known by said structure, the utility model has the advantage of:
1) when coaxially can realizing easily the cold quantity transmission control function of frigo for liquid back pipe frigo, improve duty effect;
2) locus that has adopted change feed pipe and liquid back pipe to arrange in freezing pipe, is not increasing under the precondition of freezing pipe diameter and brine flow, can effectively reduce feed pipe inner salt water pressure;
3) vinyon or polyvinyl chloride for liquid back pipe, has improved the heat-insulating property of liquid back pipe and the heat-sinking capability of control freezing device.
It is evident that above description and to record be only for example instead of in order to limit disclosure of the present utility model, application or use.Although described in an embodiment and be described in the drawings embodiment, but the utility model does not limit by accompanying drawing example and the optimal mode thought at present of conduct of describing in an embodiment to implement the specific examples of instruction of the present utility model, scope of the present utility model will comprise any embodiment that falls into manual above and appended claim.
Claims (5)
1. the coaxial liquid back pipe frigo that supplies, comprises feed pipe, liquid back pipe and freezing pipe, it is characterized in that:
Described feed pipe, liquid back pipe are made by vinyon or igelite;
Described feed pipe and liquid back pipe are coaxially inserted in described freezing pipe, and the diameter of described liquid back pipe is greater than the diameter of described feed pipe and is sleeved on outside described feed pipe,
The part that described liquid back pipe stretches out freezing pipe is provided with fluid valve first time, the outside, upper end of described freezing pipe is provided with fluid valve second time, the top of described liquid back pipe is provided with the first shrouding that surrounds described feed pipe and seal described liquid back pipe, and the top of described freezing pipe is provided with the second shrouding that surrounds described liquid back pipe and seal described freezing pipe.
2. as claimed in claim 1 coaxial for liquid back pipe frigo, it is characterized in that: described freezing pipe is hollow circle tube, and its bottom is sealed by lower shrouding, and the lower end of described lower shrouding is also provided with base cone.
3. as claimed in claim 1 coaxial for liquid back pipe frigo, it is characterized in that: the 1/6-1/4 of the diameter that the diameter of described feed pipe is freezing pipe, the 1/3-2/3 that the diameter of described liquid back pipe is freezing pipe.
4. as claimed in claim 3 coaxial for liquid back pipe frigo, it is characterized in that: the diameter of described feed pipe is freezing pipe 1/5, the diameter of described liquid back pipe is freezing pipe 3/5.
5. as claimed in claim 1 coaxial for liquid back pipe frigo, it is characterized in that: the 2/3-2 of the diameter that the distance between the bottom of described feed pipe and the bottom of described freezing pipe is feed pipe is size doubly, and the distance that described liquid back pipe inserts in described freezing pipe is the 1/3-1/2 of freezing pipe length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420196262.5U CN203808045U (en) | 2014-04-22 | 2014-04-22 | Freezer for coaxial liquid supply pipe and liquid return pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420196262.5U CN203808045U (en) | 2014-04-22 | 2014-04-22 | Freezer for coaxial liquid supply pipe and liquid return pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203808045U true CN203808045U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420196262.5U Expired - Fee Related CN203808045U (en) | 2014-04-22 | 2014-04-22 | Freezer for coaxial liquid supply pipe and liquid return pipe |
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| CN (1) | CN203808045U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361038A (en) * | 2018-04-17 | 2018-08-03 | 中国矿业大学(北京) | A kind of energy saving frigo of New Inclined |
| CN109578059A (en) * | 2019-01-18 | 2019-04-05 | 中国矿业大学 | A kind of down-hole coal bed gas pumping method and its liquid nitrogen flow bursting by freezing device used |
| CN110566210A (en) * | 2019-09-04 | 2019-12-13 | 北京中煤矿山工程有限公司 | Horizontal freezer and freezing method for segmented time-staggered space |
| CN115075737A (en) * | 2022-06-06 | 2022-09-20 | 浙江大学 | Self-drilling freezing type composite drilling tool and using method thereof |
-
2014
- 2014-04-22 CN CN201420196262.5U patent/CN203808045U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361038A (en) * | 2018-04-17 | 2018-08-03 | 中国矿业大学(北京) | A kind of energy saving frigo of New Inclined |
| CN109578059A (en) * | 2019-01-18 | 2019-04-05 | 中国矿业大学 | A kind of down-hole coal bed gas pumping method and its liquid nitrogen flow bursting by freezing device used |
| CN109578059B (en) * | 2019-01-18 | 2020-10-09 | 中国矿业大学 | Underground coal bed gas extraction method and liquid nitrogen flowing frost cracking device used by same |
| CN110566210A (en) * | 2019-09-04 | 2019-12-13 | 北京中煤矿山工程有限公司 | Horizontal freezer and freezing method for segmented time-staggered space |
| CN110566210B (en) * | 2019-09-04 | 2020-10-16 | 北京中煤矿山工程有限公司 | Horizontal freezer and freezing method for segmented time-staggered space |
| CN115075737A (en) * | 2022-06-06 | 2022-09-20 | 浙江大学 | Self-drilling freezing type composite drilling tool and using method thereof |
| CN115075737B (en) * | 2022-06-06 | 2023-03-10 | 浙江大学 | Self-drilling freezing type composite drilling tool and using method thereof |
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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: 20140903 Termination date: 20150422 |
|
| EXPY | Termination of patent right or utility model |