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Single-pipe series-loop heating system with automatic three-way valves and control method of single-pipe series-loop heating system

A technology of a heating system and a control method, which is applied to hot water central heating systems, heating systems, central heating components, etc., can solve the problems of uneven cooling and heating of upper and lower floors, and achieve the effect of reducing power consumption

Active Publication Date: 2017-09-08
哈尔滨哈投投资股份有限公司供热公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the problem of uneven heating and cooling of the upper and lower floors caused by vertical imbalance in the existing single-pipe downstream heating system, and further provides a single-pipe downstream heating system with an automatic three-way valve and its control method

Method used

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  • Single-pipe series-loop heating system with automatic three-way valves and control method of single-pipe series-loop heating system
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  • Single-pipe series-loop heating system with automatic three-way valves and control method of single-pipe series-loop heating system

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specific Embodiment approach 1

[0024] Specific implementation mode one: combine Figure 1 ~ Figure 2 Describe this embodiment, a single-pipe downstream heating system equipped with an automatic three-way valve, which includes a heat exchanger 1, first to fourth pipelines, one end of the first pipeline 2 and the heating system for the lower user One end of the fourth pipeline 4 communicates with the heat supply pipe of the upper user, one end of the second pipeline 3 communicates with one end of the third pipeline 10 through the heat exchanger 1, and the other end of the first pipeline 2 communicates with the The other end of the second pipeline 2 is connected, the other end of the fourth pipeline 4 is connected with the other end of the third pipeline 10, the second pipeline 3 is also provided with a circulating pump 5,

[0025] It also includes the fifth pipeline 6, the sixth pipeline 7, the first three-way valve 8 and the second three-way valve 9, the other end of the first pipeline 2, one end of the sixt...

specific Embodiment approach 2

[0027] Specific implementation mode two: combination Figure 1 ~ Figure 4 Describe this embodiment, the control method of the single-pipe downstream heating system with an automatic three-way valve described in the specific embodiment 1, which includes the following steps:

[0028] Step 1: Make statistics on the buildings heated by the test unit, and select all large cycle users with vertical imbalance that are heated by the unit through the single-pipe heating system to measure the temperature;

[0029] Step 2: The unit is running for a period of time in forward or reverse supply. When the temperature and pressure of the supply and return water of the unit in the station are maintained in a stable state, and before switching the heating mode, measure the temperature of the end user corresponding to the end riser of the building , and recorded in the temperature measurement record table, wherein, when the unit is in normal supply, the end user is the bottom user; when the unit...

specific Embodiment approach 3

[0045] Specific implementation mode three: combination Figure 1 ~ Figure 4 Describe this embodiment, in step 6, in the data obtained after collecting the indoor temperature of the same riser user, each temperature measurement user has at least two temperature measurement points, and after switching the heating mode, the position of the temperature measurement point and the switch The position of the temperature measuring point before the heating mode is the same. This design ensures the accuracy of the collected data. Other compositions and connections are the same as in the second embodiment.

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Abstract

A single-pipe series-loop heating system with automatic three-way valves and a control method of the single-pipe series-loop heating system belong to the technical field of heating systems. The problem of nonuniform cold and heat of upper layers and lower layers due to vertical disorder of a conventional single-pipe series-loop heating system is solved. The single-pipe series-loop heating system provided by the invention is characterized in that the other end of a first pipeline, one end of a sixth pipeline and the other end of a second pipeline are connected through a second three-way valve, the other end of a third pipeline, the other end of a fourth pipeline and one end of a fifth pipeline are connected through a first three-way valve, an original water supply pipe is switched into a water return pipe through controlling the three-way valves, meanwhile, an original water return pipe is switched into a water supply pipe, an original heating mode is obtained through switching after running at determined time, the temperature of an original cold end rises, the temperature of an original hot end cannot be too high, and finally, the daily average temperatures of upper-layer users and lower-layer users of the same vertical tube are more approximate. The single-pipe series-loop heating system is used for balancing the indoor temperature of the upper-layer users and the lower-layer users.

Description

technical field [0001] The invention relates to a single-pipe downstream hot water heating system, in particular to a single-pipe downstream system provided with an automatic three-way valve and a control method thereof, belonging to the technical field of heating systems. Background technique [0002] The single-pipe downstream heating system, that is, the single-pipe downstream hot water heating system, has been widely used in general buildings in China because of its simple form, convenient construction, and low cost. The characteristic of the single-pipe downstream hot water heating system is that all the water in the standpipe flows through the radiators in sequence. Therefore, its most serious defect is that it cannot be adjusted locally, and it is very prone to vertical imbalance, that is, the phenomenon of uneven heating and cooling of the upper and lower layers (the room temperature of the upper layer is obviously higher than that of the lower layer). To ensure the...

Claims

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Application Information

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IPC IPC(8): F24D3/10F24D19/10
CPCF24D3/1058F24D19/1024F24D2220/0235
Inventor 李保国徐欣张黎冯杨洋赵晶巍郭晓涛高帅曹壮高扬董宇张小龙金宇轩
Owner 哈尔滨哈投投资股份有限公司供热公司
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