A test device for testing the hydraulic characteristics of buried pipes in ground source heat pump systems
A technology for testing equipment and hydraulic characteristics, which is applied in the field of ground source heat pumps, can solve problems such as functional and structural differences, and achieve the effect of simple and compact structure, convenient installation and movement, and convenient movement
Inactive Publication Date: 2015-10-28
TONGJI UNIV
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0013] The above-mentioned patents related to the hydraulic characteristic test are used to detect the hydraulic characteristics of the agricultural drip irrigation system and micro-scale flow, which belong to a different field from the hydraulic characteristic detection of the buried pipe system of the ground source heat pump, and there are large differences in function and structure
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.
[0031] The invention aims at the change of the hydraulic characteristics of the pipeline due to improper construction of the buried pipe heat exchanger, such as thermal fusion, particle impurity blockage, etc., thus causing the heat exchange effect of the buried pipe heat exchanger to be far lower in the actual operation process Due to the design value, the system efficiency is reduced or even cannot operate normally. A test device that can conveniently detect its hydraulic characteristics during the construction process of buried pipes is proposed, such as figure 1 A schematic diagram of the device is shown.
[0032] The device includes a replenishing water tank 1, a filter 2, a circulating water pump 3, a frequency converter 4, a first temperature sensor 5, a first stop valve 6, a first pressure sensor 7, a first external interface 8, a secon...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a test device used for hydraulic characteristics of underground pipes of a ground-source heat pump system and belongs to the technical field of ground-source heat pumps. The test device comprises a connecting pipeline, a first external connector, a water pump, a water replenishing tank, a second external connector, a flow meter, a first pressure sensor and a second pressure sensor, wherein the first external connector, the water pump, the water replenishing tank and the second connector are sequentially connected through the connecting pipeline, the flow meter is arranged on the connecting pipeline, the first pressure sensor is installed on the connecting pipeline between the water pump and the first external connector, and the second pressure sensor is installed on the connecting pipeline between the water replenishing tank and the second external connector. The first external connector and the second external connector are matched with an orifice of a tested pipe in shape. The test device is simple and compact in structure and convenient to move and can test hydraulic characteristics of a single underground pipe or underground pipe nest after the underground pipes are assembled with a circuit header before and after pipe laying, thereby judging whether hot-melt protrusions exist and particles and impurities cause blockage or not in the underground pipes or high changes of resistance coefficient due to other factors so that the underground pipes can be treated or replaced in time during construction.
Description
technical field [0001] The invention belongs to the technical field of ground source heat pumps, and relates to a device for testing hydraulic characteristics of pipelines. Background technique [0002] Ground source heat pump technology has developed rapidly in my country in recent years, especially the buried pipe ground source heat pump system has been widely used. It realizes the renewable utilization of energy, improves the primary energy utilization rate and system operation efficiency, and has significant energy saving. benefits and environmental benefits. The buried tube ground source heat pump system needs to bury the buried tube heat exchanger in the ground by backfilling the drilled hole or built into the pile foundation. The heat exchange medium flows in the buried tube heat exchanger tube and exchanges heat with the soil. (absorbing heat from the soil or releasing heat to the soil), this heat exchange process is the key to the operation of the entire buried pipe...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01V9/00
Inventor 周翔张旭武佳琛刘海霞
Owner TONGJI UNIV