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Temperature adjustment system for sunlight greenhouses

A technology of temperature regulation system and solar greenhouse, applied in the field of solar greenhouse temperature regulation system, can solve the problems of difficulty in recovery and high energy consumption, and achieve the effects of saving operating costs, reducing heat transfer temperature and improving efficiency

Inactive Publication Date: 2013-07-31
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

("Application of Heating System and Its Equipment in Modern Greenhouses") The ground source heat pump system has the advantages of system operation, low maintenance cost, long service life and environmental friendliness, but there are also disadvantages: its initial investment is higher than ordinary The air conditioning of commercial and residential buildings is much higher; when used for greenhouse cooling in summer, the system consumes more energy than wet curtain and fan cooling systems; if the ground source heat pump system runs at full load for a long time, the ground water or the soil around the buried pipe will The temperature is difficult to recover in a short time ("Discussion on the Application of Ground Source Heat Pump Technology in Greenhouse Facilities in China")
However, the application of solar heat pumps in solar greenhouses in Northwest my country has not been reported, and it is urgent to propose an advanced solar greenhouse energy-saving technology suitable for the specific conditions of Northwest my country

Method used

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  • Temperature adjustment system for sunlight greenhouses
  • Temperature adjustment system for sunlight greenhouses
  • Temperature adjustment system for sunlight greenhouses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0038] Implementation Case 1 is the process in which the solar heat collector (1) collects solar energy and stores the heat in the underground heat storage tank (2) under sunny conditions. That is: the water in the water tank (2) is sent to the solar collector (1) by the submersible pump (3) through the water supply pipe (G1) of the water collector to be heated, and then passes through the return pipe of the collector return pipe ( G2) get back in the underground heat storage tank (2). Such circulation, the water in the underground hot water storage tank (2) is constantly heated, and heat is stored.

[0039] see figure 2 , is the second embodiment of the present invention.

[0040] The second implementation case is the same as the first implementation case in that: the system in the implementation case 1 continues to run, that is: the solar heat collector (1) continues to heat the water in the underground water storage tank (2). The difference is that greenhouses have the ...

Embodiment example 3

[0043] The structural components of implementation case 3 include: underground heat storage tank (2); secondary circulation pump (54); soil layer radiation coil (78); second electromagnetic two-way valve (25), fourth electromagnetic two-way valve Valve (27), fifth electromagnetic two-way valve (28), sixth electromagnetic two-way valve (29); second electromagnetic three-way valve (37), third electromagnetic three-way valve (38), fourth electromagnetic three-way valve Valve (39); the first ball valve (74), the second ball valve (75); the second check valve (40), the third check valve (42), the tenth check valve (76); the expansion pipe (59 ); the second filter (60); the third temperature sensor (T3), the fourth temperature sensor (T4), the fifth temperature sensor (T5), the seventh temperature sensor (A2); the first controller (K1); The first water supply pipe (G5), the third water supply pipe (G7), the fourth water supply pipe (G15), the fifth water supply pipe (G21), the soil ...

Embodiment example 4

[0047] The difference between implementation case 4 and implementation case 3 is that in implementation case 4, the thirteenth electromagnetic two-way valve (61), the sixteenth electromagnetic two-way valve (64), the seventeenth electromagnetic two-way valve ( 65), the seventh electromagnetic three-way valve (70), a circulation pump (53), the first sub-catchment (57), the first exhaust valve (72), the rear wall radiation coil (77). The access fifth water supply pipe (G21) is closed.

[0048] At this time, the hot water in the underground hot water storage tank (2) flows to the eighth electromagnetic three-way valve (71), and no longer flows through the fifth water supply pipe (G21) of the pipeline, but along the fourth water supply pipe ( G15), after being pressurized by the primary circulation pump (53), it flows into the water separator of the first sub-catchment (57) through the radiant coil water supply pipe (G13) on the rear wall, and after being diverted by the water sep...

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Abstract

The invention discloses a temperature adjustment system for sunlight greenhouses, and the system is composed of a solar energy collection circulating system (I), a dual-heat-source heat pump system (II), an indoor heating circulating system (III) and a control system (IV). The temperature adjustment system for the sunlight greenhouses disclosed by the invention mainly comprises the solar energy collection circulating system, the dual-heat-source heat pump system and the indoor heating circulating system. The temperature adjustment system for the sunlight greenhouses belongs to the filed of energy utilization based on solar energy-heat pump combination and underground heat storage technologies. In addition, the system is designed for sunlight greenhouses in northwest areas, therefore, the system also belongs to the filed of agricultural buildings and facilities.

Description

technical field [0001] The invention relates to a solar greenhouse temperature adjustment system based on composite energy-saving technology, which is mainly composed of a solar heat collection circulation system, a dual heat source heat pump system and an indoor side heating circulation system. It belongs to the field of energy utilization of combined solar heat pump and underground heat storage technology. In addition, this system is designed for solar greenhouses in Northwest China, so it also belongs to the field of agricultural buildings and facilities. technical background [0002] In the development process of modern agriculture, facility agriculture, as a new agricultural production technology system, has important strategic significance for changing the mode of agricultural growth, getting rid of the constraints of the natural environment, and realizing the leapfrog development of agriculture. However, the dependence of facility agriculture on energy has become a m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G9/26
CPCY02A40/25Y02P60/12Y02P60/14
Inventor 毕胜山任海霞
Owner XI AN JIAOTONG UNIV