CN101933447B - Constant temperature heating system of hothouse - Google Patents
Constant temperature heating system of hothouse Download PDFInfo
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- CN101933447B CN101933447B CN2009100876202A CN200910087620A CN101933447B CN 101933447 B CN101933447 B CN 101933447B CN 2009100876202 A CN2009100876202 A CN 2009100876202A CN 200910087620 A CN200910087620 A CN 200910087620A CN 101933447 B CN101933447 B CN 101933447B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 76
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 133
- 239000000284 extract Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000011152 fibreglass Substances 0.000 claims description 3
- 239000008236 heating water Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 239000013589 supplement Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- 238000012271 agricultural production Methods 0.000 description 2
- 238000003287 bathing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention provides a constant temperature heating system of a hothouse, comprising a heat source used for preparing hot water and a pipeline used for transporting the hot water to the hothouse to carry out heating. The constant temperature heating system of the hothouse is characterized by also comprising one or a set of water towers, wherein the water towers are used for storing the prepared hot water and supplying pressure needed by water transportation, the pipeline is a parallel water supply pipeline and comprises a main water feeding pipe and a plurality of branch water feeding pipes, wherein the branch water feeding pipes are all communicated with the main water feeding pipe, hierarchically supply heating to a located shed area and sequentially supplement heating for the branch water feeding pipe at the front according to the sequence of from far to near.
Description
Technical field
The present invention relates to agricultural greenhouse booth constant temperature heating technology.
Background technology
Representative as modern agriculture, polyhouse-based agriculture is produced and has been obtained using fast and widely and developing with its high-efficiency low energy consumption, in order to guarantee that booth has stable temperature, so that can carry out agricultural production efficiently in the four seasons, people are extensive use of various thermals source agricultural greenhouse are carried out heating, guaranteeing having suitable stationary temperature in the booth, thereby improve the efficient of agricultural production.
But, after booth heating at present mainly relies on thermal source to prepare hot water, utilize high-pressure pump that the hot water of preparation is heated to booth with the unidirectional conveying of tandem by metallic conduit.
At first, adopt such mode of movement, on the one hand, high-pressure pump needs continual work, the energy that not only needs consume significant, and the loss of high-pressure pump self is also very big, facts have proved, in such working environment, the service life of high-pressure pump is basically about 2 years, and the high-pressure pump cost is very high, causes the operating cost height, on the other hand, adopt high-pressure pump pumping well water, can produce the shock loading of alternation in the pipeline, this shock loading itself can produce pipeline and corrode, but also can aggravate Corrosion of Pipeline.
Secondly, the unidirectional conveying heating system of this tandem, because hot water radiating and cooling one by one in pipeline is carried, therefore, the temperature difference of each section is obvious before and after the heating pipe network, is unfavorable for controlling each regional heating temperature in the booth, simultaneously, because each section of heating pipe network temperature difference is bigger, also can cause the waste of heat energy.
At last, existing booth heating is limited to the greatest extent and utilizes pipe network to heating in the booth, and its terminal backwater still contains bigger heat energy and can not make full use of, and causes the huge waste of heat energy.
Summary of the invention
The objective of the invention is to: at the defective and the deficiency of existing agricultural greenhouse heating technology existence, a kind of novel heating system is provided,, and utilizes the staged heat-supplying mode to reach efficient heating by change way of supplying water, pipeline structure, cut down the consumption of energy, improve the availability of thermal source.
Technical scheme of the present invention is as follows:
Green house constant temperature heating system, comprise the thermal source for preparing hot water, and in order to carry out the pipeline of heating to the booth delivering hot water, it is characterized in that: described heating system also comprises one or one group of water tower, described water tower is in order to store prepared hot water and to provide water delivery required pressure, described pipeline is a supply channel in parallel, comprise a main water inlet tube and some minutes water inlet pipes, each minute, water inlet pipe all communicated with main water inlet tube, and echelon heats to booth zone, place, and each minute water inlet pipe divide the heating of water inlet pipe to replenish as its place ahead successively according to the order that draws near.
In described each minute water inlet pipe, comprise the heating scope of the branch water inlet pipe that is positioned at thereafter successively near its stringing heating scope of branch water inlet pipe of thermal source direction.
Described pipeline also comprises return pipe, described each minute water inlet pipe all link to each other with return pipe.
It is poor to have certain height between described inlet pipeline and the return pipe.
Described heating system also comprises attemperating unit, and described attemperating unit comprises that when temperature of shed was lower than the lower temperature of setting, temperature-sensing valve was opened in order to the measuring point of monitoring temperature of shed and the temperature-sensing valve that is positioned at branch water inlet pipe front end; When temperature of shed was higher than the temperature upper limit of setting, temperature-sensing valve cut out.
Described return pipe links to each other with the buried pipe heating system in earth culture zone, and the backwater that produces after the booth heating carries out heating once more through the ground pipe laying heating system in earth culture zone.
Described backwater through earth culture heating enters in the cistern, and extracts the heat energy of backwater in the back pool once more by water source heat pump system, with the utilization of preparation hot water circuit.
Described thermal source can be various fire coals or oil burning boiler, also can be apparatus for heating water by solar energy, or the geothermal water of directly exploiting.
When thermal source adopted geothermal water, described pipeline was PE pipe or glass reinforced plastic pipe.
When thermal source adopts geothermal water, comprise the backwater deep-well of adopting depth of water well and backwater in order to recovery of subterranean hot water, after backwater extracts heat through water source heat pump system in the described cistern, evenly recharge to underground by the backwater deep-well.
Technique effect of the present invention is:
The present invention is by being provided with water tower, can with preparation or gather in order to the hot water storage of heating in water tower, utilize the height of water tower to produce the required pressure of water delivery, the present invention utilizes water tower water-feeding to replace existing high-pressure pump to supply water, save the investment and the operating cost of high-pressure pump and relevant device thereof, can significantly reduce the electric energy that the high-pressure pump operation is consumed; And utilizing water tower that water delivery pressure is provided, the hydraulic load that bears in the hydraulic pipeline is steady and even, can significantly improve because of the caused irregular alternate load of high-pressure pump way of supplying water, improves the working life of pipeline.
The present invention utilizes the mode of echelon heating, at first, utilize unidirectional single tube way of supplying water in parallel to the booth heat supply heating, heating hot water is controlled by temperature-sensing valve, can control automatically according to the temperature in the canopy and supply water and backwater, in guaranteeing canopy, in the heating, reduce the consumption of hot water, overcome that existing unidirectional single tube relay pumping mode output is big, temperature of shed is difficult to control, hear rate height, defective that thermal waste is serious, and is obviously energy-saving and cost-reducing; Then, utilize the still bigger characteristics of return water temperature that produced after the booth heat supply, to earth culture zone heating once more, can further improve the thermal efficiency of hot water by the ground pipe laying like this, energy-conservation effect is more remarkable.
In order further to improve the efficiency of utilization of hot water, heating system of the present invention is also extracted its heat once more by the backwater of water source heat pump system after to heat supply, and utilizes prepared hot water used for communal facility, club's bathing.
Description of drawings
Fig. 1 is described to be the structural representation of green house constant temperature heating system of the present invention.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the hot water that utilizes various thermals source to prepare or to gather is delivered in the water tower 1, on the sidewall of water tower 1 heat-insulation layer is housed, to prevent hot water radiating and cooling in the tower, water tower 1 utilizes the liquid height difference in the tower that enough water delivery pressure is provided far above the ground heating pipeline.
The thermal source of green house constant temperature heating system of the present invention can be various fire coals or oil burning boiler, also can adopt solar water heating system, or utilizes the deep mining geothermal water.When adopting geothermal water as thermal source, because geothermal water is rich in the sulphur composition, if adopt the steel pipeline then seriously corroded, its service life is very short, its service life is about 5 years, cause maintenance cost very high, adopt corrosion resistant PE pipe or glass reinforced plastic pipe in the present embodiment, the service life that can improve pipeline significantly.
Owing to adopt water tower water-feeding to supply water to replace existing high-pressure pump, the purchase cost of high-pressure pump and auxiliary facility thereof and operation, maintenance cost had both been saved, a large amount of reductions the consumption of electric energy, can also improve water supply to hydraulic shock that pipeline produced, improved the force-bearing situation of pipeline, improve the service life of pipeline, in the service life of also having improved whole system accordingly, reduced the cost of safeguarding.
Main water inlet tube 5 directly links to each other with water tower 1, some fraction water inlet pipes 6 have been arranged in parallel on the main water inlet tube 5, each fraction water inlet pipe 6 is according to from the close-by examples to those far off principle, echelon is compatible, promptly long more the closer to branch water inlet pipe 6 its cloth length of tube in booth 2 of influent side, the branch water inlet pipe of its rear side all is included within the scope of its heating, and promptly the branch water inlet pipe of next stage is that the heating of fraction water inlet pipe on it replenishes.
Such heating pipe is laid mode, can fully effectively utilize the water inlet heating of each grade, have only, utilize the temperature-sensing valve 8 that is arranged on the branch water inlet pipe when this progressive hydromining is warm can't satisfy the heating requirement time, open next fraction water inlet pipe one by one, to replenish the needs of heating.
Each fraction water inlet pipe all links to each other with return pipe 7, and be provided with temperature-sensing valve 8 on the water return pipeline, when reaching under the design temperature, temperature of shed prescribes a time limit, temperature-sensing valve 8 on the water inlet pipe 6 is (hereinafter to be referred as the water inlet temperature-sensing valve, temperature-sensing valve on the corresponding return pipe abbreviates return water temperature control valve as) open, high-temperature-hot-water enters and carries out heating in the branch water inlet pipe 6 in the main water inlet tube 5, and then temperature of shed raises; Prescribe a time limit when temperature of shed reaches on the design temperature, the water inlet temperature-sensing valve cuts out, and booth is incubated, and thermal water resource like this can avoid waste; When the hot water temperature in minute water inlet pipe 6 was not enough, return water temperature control valve was opened, and the water in the pipe is discharged by return pipe 7.
Backwater in the return pipe 7 can be introduced earth culture booth 3, by being embedded in the buried pipeline in the soil, can utilize backwater in the return pipe 7 to improve and keep the temperature of soil in the earth culture booth, such echelon heating system, can effectively improve the heat energy utilization rate of hot water, have the energy-saving and cost-reducing effect of highly significant.
The backwater that flows out from the earth culture booth directly enters to collect the back pool 4 with heat insulation effect and stores.
Experiment showed, and adopt heating system of the present invention that when hot water temperature in the tower is the inflow temperature in booth heating zone when being 65 ℃, the return water temperature that enters the earth culture booth through return pipe 7 is about 35 ℃, when the earth culture booth is buried ground pipe laying (PEX-DN underground
32), during 40 centimeters of pipe laying depths, soil ground temperature is promoted more than 10 ℃, the leaving water temperature temperature difference of earth culture booth is 10 ℃.
The present invention adopts the echelon heating, can further make full use of the heat of hot water, reaches the purpose of efficient heating.
Smooth and easy in order to guarantee backwater, the position of each water inlet pipe should be higher than return pipe 6.
In order further to improve making full use of of heat energy, can extract the heat of backwater in the back pool 4 to prepare new hot water by water source heat pump system 10, new hot water can be both can for around the resident or communal facility heating or club's bathing of garden used, also can be delivered directly in the water tower 1 recycling.
When utilizing the deep mining geothermal water as thermal source, the backwater in the back pool 4 can evenly recharge to underground by the backwater deep-well after extracting heat once more through water source heat pump system 10.
Claims (10)
1. green house constant temperature heating system, comprise the thermal source for preparing hot water, and in order to carry out the pipeline of heating to the booth delivering hot water, it is characterized in that: described heating system also comprises one or one group of water tower, described water tower is in order to store prepared hot water and to provide water delivery required pressure, described pipeline is a supply channel in parallel, comprise a main water inlet tube and some minutes water inlet pipes, each minute, water inlet pipe all communicated with main water inlet tube, and echelon heats to booth zone, place, and each minute water inlet pipe divide the heating of water inlet pipe to replenish as its place ahead successively according to the order that draws near.
2. green house constant temperature heating system as claimed in claim 1 is characterized in that: in described each minute water inlet pipe, comprise the heating scope of the branch water inlet pipe that is positioned at thereafter successively near its stringing heating scope of branch water inlet pipe of thermal source direction.
3. green house constant temperature heating system as claimed in claim 2, it is characterized in that: described pipeline also comprises return pipe, described each minute water inlet pipe all link to each other with return pipe.
4. green house constant temperature heating system as claimed in claim 3, it is characterized in that: it is poor to have certain height between described inlet pipeline and the return pipe.
5. green house constant temperature heating system as claimed in claim 4, it is characterized in that: described heating system also comprises attemperating unit, described attemperating unit comprises in order to the measuring point of monitoring temperature of shed and the temperature-sensing valve that is positioned at branch water inlet pipe front end, when temperature of shed was lower than the lower temperature of setting, temperature-sensing valve was opened; When temperature of shed was higher than the temperature upper limit of setting, temperature-sensing valve cut out.
6. green house constant temperature heating system as claimed in claim 5 is characterized in that: described return pipe links to each other with the buried pipe heating system in earth culture zone, and the backwater that produces after the booth heating carries out heating once more through the ground pipe laying heating system in earth culture zone.
7. green house constant temperature heating system as claimed in claim 6 is characterized in that: described backwater through earth culture heating enters in the cistern, and extracts the heat energy of backwater in the back pool once more by water source heat pump system, with the utilization of preparation hot water circuit.
8. green house constant temperature heating system as claimed in claim 1 is characterized in that: described thermal source can be various fire coals or oil burning boiler, also can be apparatus for heating water by solar energy, or the geothermal water of directly exploiting.
9. green house constant temperature heating system as claimed in claim 8 is characterized in that: when thermal source adopted geothermal water, described pipeline was PE pipe or glass reinforced plastic pipe.
10. green house constant temperature heating system as claimed in claim 9, it is characterized in that: when thermal source adopts geothermal water, comprise the backwater deep-well of adopting depth of water well and backwater in order to recovery of subterranean hot water, after backwater extracts heat through water source heat pump system in the described cistern, evenly recharge to underground by the backwater deep-well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100876202A CN101933447B (en) | 2009-07-01 | 2009-07-01 | Constant temperature heating system of hothouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100876202A CN101933447B (en) | 2009-07-01 | 2009-07-01 | Constant temperature heating system of hothouse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101933447A CN101933447A (en) | 2011-01-05 |
| CN101933447B true CN101933447B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100876202A Expired - Fee Related CN101933447B (en) | 2009-07-01 | 2009-07-01 | Constant temperature heating system of hothouse |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102428849A (en) * | 2011-09-21 | 2012-05-02 | 常州润海花木有限公司 | Greenhouse temperature control system |
| CN103477919B (en) * | 2013-09-23 | 2015-08-12 | 句容市植保植检站 | A kind of physical regulating method of preventing crop edge freeze injury in booth |
| CN104460380B (en) * | 2014-12-14 | 2017-05-03 | 衢州市煜鑫农产品加工技术开发有限公司 | Control circuit with terrestrial heat utilized |
| CN105104021A (en) * | 2015-07-07 | 2015-12-02 | 新疆汉源机械制造有限公司 | Solar warming system for facility cultivation |
| CN105157088B (en) * | 2015-09-25 | 2018-11-09 | 华北电力大学（保定） | A kind of power plant's warm water discharge utilization system |
| CN109601202A (en) * | 2018-11-30 | 2019-04-12 | 安徽欧瑞达电器科技有限公司 | A kind of air energy agricultural greenhouse part constant temperature system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87105447A (en) * | 1987-08-12 | 1988-03-09 | 石河子工业技术开发研究中心 | Small stream irrigating system with plastic hose |
| US6036104A (en) * | 1998-12-18 | 2000-03-14 | Shih; Chao-Chang | Irrigation system |
| CN201260325Y (en) * | 2008-09-25 | 2009-06-24 | 天津滨海大顺花卉科技发展股份有限公司 | Greenhouse floor heating system |
-
2009
- 2009-07-01 CN CN2009100876202A patent/CN101933447B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87105447A (en) * | 1987-08-12 | 1988-03-09 | 石河子工业技术开发研究中心 | Small stream irrigating system with plastic hose |
| US6036104A (en) * | 1998-12-18 | 2000-03-14 | Shih; Chao-Chang | Irrigation system |
| CN201260325Y (en) * | 2008-09-25 | 2009-06-24 | 天津滨海大顺花卉科技发展股份有限公司 | Greenhouse floor heating system |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-80653A 2005.03.31 |
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Owner name: BEIJING ZHONGLV ENVIRONMENTAL + ENERGY TECHNOLOGY Free format text: FORMER OWNER: GERUINA CIRCULAR ENERGY TECHNOLOGY CO., LTD., BEIJING Effective date: 20120207 |
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Effective date of registration: 20170504 Address after: 100086, Room 802, Qingyun contemporary building, No. 43 West Third Ring Road, Haidian District, Beijing Patentee after: Beijing Green Environment Energy Technology Co.,Ltd. Address before: 100086, room 704, Qingyun contemporary building, No. 43 West Third Ring Road, Haidian District, Beijing Patentee before: Beijing green ring technology LLC |
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