CN102049466B - Method for cooling sand temperature regulator cooling water through earth cooling - Google Patents
Method for cooling sand temperature regulator cooling water through earth cooling Download PDFInfo
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- CN102049466B CN102049466B CN200910221792A CN200910221792A CN102049466B CN 102049466 B CN102049466 B CN 102049466B CN 200910221792 A CN200910221792 A CN 200910221792A CN 200910221792 A CN200910221792 A CN 200910221792A CN 102049466 B CN102049466 B CN 102049466B
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Abstract
The invention relates to the technical field of temperature regulation for foundry recycled sand, in particular to a method for cooling recycled water for sand regeneration by utilizing underground low-temperature soil, which is a method for cooling sand temperature regulator cooling water through earth cooling. Foundry sand can meet the use requirement only by temperature regulation after being recycled. In the prior art, one way is to adopt a cooling tower to cool a circulating water system, the temperature of recycled water cooled in this way in summer is still higher, and the temperature of the recycled sand can not be lowered to be in the range required in the process and can only be regulated by adding running water, while the discharge of superfluous water of the system causes the waste of water resources; and the other way is to purchase cooling equipment for cooling, which results in large investment and more electricity consumption. In the invention, a sand temperature regulator cooling and circulating water system is connected to a running water main pipeline in parallel according to the principle of earth cooling, and sealed one-way circulation is carried out by utilizing running water as a cooling medium of the sand temperature regulator. Water absorbing heat transfers the heat to the earth through a buried running water pipeline, thereby the aims of no water consumption and energy resource saving can be achieved.
Description
Technical field
The present invention relates to cast the adjustment technical field of reclaimed sand, specifically a kind of method of utilizing the cold but sand temperature modulator cooling water in ground.
Background technology
In the Foundry Production operation, adjustment must be carried out behind the casting old-sand regeneration, just instructions for use can be reached.At present, domestic foundry enterprise sand temperature modulator generally with water as cooling medium, the coil heat exchanger of current in sand temperature modulator, the heat that absorbs sand makes the reclaimed sand temperature satisfy technological requirement to reduce the reclaimed sand temperature.Carry out the water of heat from sand temperature modulator, generally recycle after handling cooling.In the prior art; Water-cooled but has two kinds of methods: the one, with special cooling tower cooling circulating water system; This mode summer cooled circulating water temperature still higher; Can't the reclaimed sand temperature be reduced to the scope of technological requirement, must add the lower running water of temperature and regulate, water temperature just can reach instructions for use.And the unnecessary water of system has just emitted, and causes water resource waste; The 2nd, to buy special refrigeration plant and cool off, the one-time investment of equipment is big, and power consumption is many, and the man power and material of labor is wanted in operation and maintenance.This dual mode all causes resource, the energy and waste economically.
Summary of the invention
The purpose of this invention is to provide a kind of method of utilizing the cold but sand temperature modulator cooling water in ground, to overcome the defective of existing conventional art.
The technical solution adopted for the present invention to solve the technical problems is: sand temperature modulator cool cycles waterpipe is parallelly connected with the running water trunk line, and connect and to be distributed in underground heat exchange pipeline, make it become closed cycle system; Utilize underground cold energy source that casting reclaimed sand cooling circulating water is lowered the temperature;
Described sand temperature modulator cool cycles waterpipe is made up of four parts with the closed cycle system of the parallelly connected formation of running water trunk line; Part 1 is made up of first gate valve, second gate valve, first ball-and-seat and the 3rd gate valve; From the outdoor dual circuit that connects a parallel connection the supply mains road of going up; One the tunnel installs first gate valve, and first ball-and-seat is installed on another road, in the first ball-and-seat both sides second gate valve and the 3rd gate valve is installed; Part 2 is made up of the 4th gate valve, first circulating pump, the 5th gate valve, second ball-and-seat, the 6th gate valve, second circulating pump, the 7th gate valve and the 3rd ball-and-seat; From the outdoor dual circuit that connects a parallel connection the supply mains road of going up; In two pipelines wherein a pipeline first circulating pump is installed; Another pipeline is installed second circulating pump; The influent side of first circulating pump is installed the 4th gate valve, water outlet side is installed the 5th gate valve, and the influent side of second circulating pump is installed the 6th gate valve, water outlet side is installed the 7th gate valve, one the 3rd ball-and-seat of installed beside of one second ball-and-seat of the installed beside of the 5th gate valve water outlet side and the 7th gate valve water outlet side; The 3rd part is made up of the 8th gate valve, sand temperature modulator and the 9th gate valve, and at part 2 water outlet side series connection sand temperature modulator, part does not connect the 8th gate valve and the 9th gate valve on the pipeline of access and outflow sand temperature modulator; The 4th part is made up of the tenth gate valve, and the tenth gate valve is installed between the 3rd part water outlet side, part 1 water outlet side; The 2nd, 3,4 parts after the above-mentioned series connection are parallelly connected with part 1.
The present invention has following beneficial effect:
1, can sand temperature drop to technological requirement scope have been solved a difficult problem that influences production and product quality summer because of the sand temperature drop does not get off.
2, the design is reasonable, and investment is few, compares than the design of traditional water cooling recirculation system, and this water-cooled but circulatory system does not have any water consumption, energy savings; Utilize the ground cold waste that efficiently solves hydroelectric resources, economic benefit and obvious social benefit.
Description of drawings
Fig. 1: be that sand temperature modulator cooling system of the present invention utilizes the cold new design sketch map in ground.
The specific embodiment
Among the figure: 1, first gate valve, 2, second gate valve, 3, first ball-and-seat, the 4, the 3rd gate valve; 5, the 4th gate valve, 6, first circulating pump, the 7, the 5th gate valve, 8, second ball-and-seat; 9, the 6th gate valve, 10, second circulating pump, the 11, the 7th gate valve, the 12, the 3rd ball-and-seat; 13, the 8th gate valve, 14, sand temperature modulator, the 15, the 9th gate valve, the 16, the tenth gate valve.
Sand temperature modulator cool cycles waterpipe is parallelly connected with the running water trunk line, and connect and to be distributed in underground heat exchange pipeline, make it become closed cycle system; Utilize underground cold energy source that casting reclaimed sand cooling circulating water is lowered the temperature.
Described sand temperature modulator cool cycles waterpipe is made up of four parts with the closed cycle system of the parallelly connected formation of running water trunk line; Part 1 is made up of first gate valve 1, second gate valve 2, first ball-and-seat 3 and the 3rd gate valve 4; From the outdoor dual circuit that connects a parallel connection the supply mains road of going up; One the tunnel installs first gate valve 1, and first ball-and-seat 3 is installed on another road, in first ball-and-seat, 3 both sides second gate valve 2 and the 3rd gate valve 4 is installed; Part 2 is made up of the 4th gate valve 5, first circulating pump 6, the 5th gate valve 7, second ball-and-seat 8, the 6th gate valve 9, second circulating pump 10, the 7th gate valve 11 and the 3rd ball-and-seat 12; From the outdoor dual circuit that connects a parallel connection the supply mains road of going up; In two pipelines wherein a pipeline first circulating pump (6) is installed; Another pipeline is installed second circulating pump 10; The influent side of first circulating pump is installed the 4th gate valve 5, water outlet side is installed the 5th gate valve 7; The influent side of second circulating pump is installed the 6th gate valve 9, water outlet side is installed one second ball-and-seat 8 of installed beside of the 7th gate valve 11, the five gate valves 7 water outlet sides and one the 3rd ball-and-seat 12 of installed beside of the 7th gate valve 11 water outlet sides; The 3rd part is made up of the 8th gate valve 13, sand temperature modulator 14 and the 9th gate valve 15, at part 2 water outlet side series connection sand temperature modulator 14, is inserting and is flowing out that part does not connect the 8th gate valve 13 and the 9th gate valve 15 on the pipeline of sand temperature modulator 14; The 4th part is made up of the tenth gate valve 16, and the tenth gate valve 16 is installed between the 3rd part water outlet side, part 1 water outlet side; The 2nd, 3,4 parts after the above-mentioned series connection are parallelly connected with part 1.
Concrete design: utilize plant area have water supply pipe, the reclaimed sand circulating cooling system is parallelly connected with the running water main water supply pipe casting, and running water is flowed through return the running water trunk line behind the sand temperature modulator coil pipe.Because pipeline and water circulation system are sealed, avoided producing and polluted.The running water that heats after the sand temperature modulator heat exchange is got back to the running water pipe network, supplies other user's use through the cooling back that contacts of underground piping and soil.
As shown in Figure 1, connect the circulation pipe of two DN50 on outdoor on the supply mains (specification DN100), connect part 1 and part 2 pipeline respectively.2nd, parallelly connected after 3,4 parts are cascaded with part 1, form the core content that invention designs.
Part 1: change the outdoor single tube of going up the supply mains into parallel connection two-tube.Go up for one a gate valve is installed; A ball-and-seat is installed on another root, a gate valve respectively is installed in its both sides, break off pipeline when being used to change ball-and-seat.Effect is: regulate the trunk line discharge size here, the control water (flow) direction.
When sand temperature modulator need use the running water cooling, with first gate valve, 1 closure, main line is broken off, tap water flows sand temperature modulator cooling system plays the effect of cooling sand temperature; When not needing the cooling of sand temperature to regulate, gate valve is opened, and running water directly flows through from main line.The effect of ball-and-seat: the flow direction of control trunk line running water, it can only be flowed to a direction, avoid flowing in gate valve, ball-and-seat both sides and flowing out, form short-circuit cycle.
When the water temperature that gets into sand reclaimed sand temperature regulator does not reach requirement, when the running water flow can not satisfy sand temperature cooling needs, the flow of ON cycle pump increase running water.When a circulating pump used, another was as subsequent use.
Sand temperature modulator in the 3rd part is according to the equipment of producing the actual selection typing of using, on the DN50 welded tube of access and outflow sand temperature modulator, respectively connects a gate valve, breaks off pipeline when being used to overhaul sand temperature modulator.
The 4th part is one the tenth gate valve 16, in the time need not using the running water cooling to regulate, circulation pipe and running water trunk line is broken off.
The core of the present invention design is: under the prerequisite that guarantees safe handling, substitute the effect that cooling tower recirculated water cools off with the closed cycle of running water.
Job step: open intake the 8th gate valve 13 and water pump of sand temperature modulator circulation and import and export the 4th gate valve 5, the 5th gate valve 7 (or the 6th gate valve 9, the 7th gate valve 11), the trunk line running water gets into sand temperature modulator 14 circulations; Open sand temperature modulator water outlet the 9th gate valve 15 again, open the tenth gate valve 16, running water is flowed through and is got back to trunk line again behind the sand temperature modulator 14; Regulate (or closing) running water trunk line valve 1, make sand temperature modulator recirculated water ability Automatic Cycle.When sand temperature modulator 14 needs to use the running water cooling, with gate valve 1 closure, main line is broken off, tap water flows sand temperature modulator 14 cooling systems play the effect of cooling sand temperature; When not needing the cooling of sand temperature to regulate, gate valve 1 is opened, and running water directly flows through from main line; The flow through discharge of gate valve 1 of adjusting, control sand temperature.Do not reach instructions for use like sand temperature modulator 14 circulating water temperatures, open first circulating pump 6 (or second circulating pump 10), strengthen the flow of running water.Water temperature increase behind actual measurement tap water flows sand temperature modulator 14 is no more than 2 ℃, and temperature is returned again and fallen 1.5 ℃ after mixing with trunk line water, and in fact comparing with mixed running water temperature in trunk line has only increased by 0.5 ℃.Longer because of outdoor buried pipeline, mixed running water through contacting of pipeline and soil, is passed to the earth to heat, has dropped to original temperature very soon again.Because the sand temperature modulator cooling water system is totally-enclosed, have no pollution problem through chemical examination after the running water circulation, do not influence the normal use of running water.
Cooling water recirculation system shown in Figure 1 is two water sources: running water main entrance 1 and running water main entrance 2, the present invention also can be used for the cooling water recirculation system at a water source.
Above-mentioned embodiment is not to be unique, and pipeline of the present invention connects can also have other embodiment, but all should fall in protection scope of the present invention.
Claims (2)
- One kind utilize ground cold but sand temperature modulator cooling water method, it is characterized by: sand temperature modulator cool cycles waterpipe is parallelly connected with the running water trunk line, and the connection be distributed in underground heat exchange pipeline, make it become closed cycle system; Utilize underground cold energy source that casting reclaimed sand cooling circulating water is lowered the temperature;Described sand temperature modulator cool cycles waterpipe is made up of four parts with the closed cycle system of the parallelly connected formation of running water trunk line; Part 1 is made up of first gate valve (1), second gate valve (2), first ball-and-seat (3) and the 3rd gate valve (4); From the outdoor dual circuit that connects a parallel connection the supply mains road of going up; One the tunnel installs first gate valve (1), and first ball-and-seat (3) is installed on another road, in first ball-and-seat (3) both sides second gate valve (2) and the 3rd gate valve (4) is installed; Part 2 is made up of the 4th gate valve (5), first circulating pump (6), the 5th gate valve (7), second ball-and-seat (8), the 6th gate valve (9), second circulating pump (10), the 7th gate valve (11) and the 3rd ball-and-seat (12); From the outdoor dual circuit that connects a parallel connection the supply mains road of going up; In two pipelines wherein a pipeline first circulating pump (6) is installed; Another pipeline is installed second circulating pump (10); The influent side of first circulating pump is installed the 4th gate valve (5), water outlet side is installed the 5th gate valve (7); The influent side of second circulating pump is installed the 6th gate valve (9), water outlet side is installed the 7th gate valve (11), one second ball-and-seat of installed beside (8) of the 5th gate valve (7) water outlet side and one the 3rd ball-and-seat of installed beside (12) of the 7th gate valve (11) water outlet side; The 3rd part is made up of the 8th gate valve (13), sand temperature modulator (14) and the 9th gate valve (15), at part 2 water outlet side series connection sand temperature modulator (14), on the pipeline of access and outflow sand temperature modulator (14), connects the 8th gate valve (13) and the 9th gate valve (15) respectively; The 4th part is made up of the tenth gate valve (16), and the tenth gate valve (16) is installed between the 3rd part water outlet side, part 1 water outlet side; The 2nd, 3,4 parts series connection back is parallelly connected with part 1.
- 2. a kind of method of utilizing the cold but sand temperature modulator cooling water in ground as claimed in claim 1 is characterized by: describedly be distributed in underground heat exchange pipeline and be meant on ground below 1.8 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910221792A CN102049466B (en) | 2009-11-10 | 2009-11-10 | Method for cooling sand temperature regulator cooling water through earth cooling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910221792A CN102049466B (en) | 2009-11-10 | 2009-11-10 | Method for cooling sand temperature regulator cooling water through earth cooling |
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| CN102049466A CN102049466A (en) | 2011-05-11 |
| CN102049466B true CN102049466B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910221792A Active CN102049466B (en) | 2009-11-10 | 2009-11-10 | Method for cooling sand temperature regulator cooling water through earth cooling |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105215263B (en) * | 2015-10-10 | 2017-12-19 | 中车长江车辆有限公司 | A kind of heating means and device for roughing sand |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB729644A (en) * | 1951-11-15 | 1955-05-11 | Coleman Wallwork Company Ltd | Improvements relating to the cooling of foundry sand |
| US4177952A (en) * | 1978-04-24 | 1979-12-11 | National Engineering Company | Impact scrubber |
| CN1766443A (en) * | 2004-10-27 | 2006-05-03 | 李德和 | Environment-friendly air condition with quantitative circulating water to absorb underground energy |
| CN2841195Y (en) * | 2005-08-17 | 2006-11-29 | 运城市关铝设备材料有限公司 | Vanishing-die casting moulding-sand cooling apparatus |
| CN201074939Y (en) * | 2007-08-20 | 2008-06-18 | 吴广福 | Resin sand, sand for modeling, device for adjusting sand temperature |
| CN201098722Y (en) * | 2007-10-22 | 2008-08-13 | 齐齐哈尔轨道交通装备有限责任公司 | Casting sand regenerating device |
| CN201231301Y (en) * | 2008-06-24 | 2009-05-06 | 比亚迪股份有限公司 | Molding-sand cooler |
-
2009
- 2009-11-10 CN CN200910221792A patent/CN102049466B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB729644A (en) * | 1951-11-15 | 1955-05-11 | Coleman Wallwork Company Ltd | Improvements relating to the cooling of foundry sand |
| US4177952A (en) * | 1978-04-24 | 1979-12-11 | National Engineering Company | Impact scrubber |
| CN1766443A (en) * | 2004-10-27 | 2006-05-03 | 李德和 | Environment-friendly air condition with quantitative circulating water to absorb underground energy |
| CN2841195Y (en) * | 2005-08-17 | 2006-11-29 | 运城市关铝设备材料有限公司 | Vanishing-die casting moulding-sand cooling apparatus |
| CN201074939Y (en) * | 2007-08-20 | 2008-06-18 | 吴广福 | Resin sand, sand for modeling, device for adjusting sand temperature |
| CN201098722Y (en) * | 2007-10-22 | 2008-08-13 | 齐齐哈尔轨道交通装备有限责任公司 | Casting sand regenerating device |
| CN201231301Y (en) * | 2008-06-24 | 2009-05-06 | 比亚迪股份有限公司 | Molding-sand cooler |
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