CN111425978A

CN111425978A - Energy supply device of two-combined-supply system and control method thereof

Info

Publication number: CN111425978A
Application number: CN202010353139.XA
Authority: CN
Inventors: 敖剑锋; 黄元躬; 熊卫
Original assignee: Zhejiang Ama & Hien Technology Co ltd
Current assignee: Zhejiang Ama & Hien Technology Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-07-17

Abstract

The invention relates to the technical field of two-combined-supply systems, in particular to an energy supply device of the two-combined-supply system and a control method thereof. Two ally oneself with confession system energy supply device includes: a host; the main pipeline is connected with the host at two ends and provided with a first pump body; and the plurality of groups of branch pipelines are arranged on the main pipeline in parallel, a plurality of user ends are arranged on the branch pipelines in parallel, and the branch pipelines are provided with second pump bodies. The first pump body arranged on the main pipeline is matched with the second pump bodies arranged on the branch pipelines to extract energy supply media from the host computer to the user terminals, and the second pump bodies are utilized to supply energy to different user terminals respectively, so that the lifts of the second pump bodies are reduced, and the energy consumption of the second pump bodies in the working process is reduced; many tributary pipelines set up in parallel simultaneously, when the user on certain tributary pipeline during stop work, correspond the second pump body on the tributary pipeline and can the bring to rest and do not influence other tributary pipeline's normal operating, greatly reduced the energy consumption of two antithetical couplet confession system energy supply device in the operation process.

Description

Energy supply device of two-combined-supply system and control method thereof

Technical Field

The invention relates to the technical field of two-combined-supply systems, in particular to an energy supply device of the two-combined-supply system and a control method thereof.

Background

The water system of the water-cooled central air-conditioning system comprises a cold water system and a hot water system, and generally adopts a single pipe system, wherein cold water circulates in summer and hot water circulates in winter. The outdoor main machine of the two-combined central air conditioner generates chilled water in summer, and the chilled water exchanges heat at the fan coil through the circulating system to blow out cold air; in winter, hot water is generated and flows in the special pipeline in a circulating way to heat the decorative layer of the ground, and the ground is heated by heat transfer of ground radiation and convection.

The circulating water system consists of a main machine pump, indoor equipment, a circulating pipeline and the like. Circulating water flowing out of the main machine evaporator is pressurized by the main machine pump and sent into the circulating pipeline, enters the indoor for heat exchange, and finally returns to the main machine evaporator. The indoor equipment comprises an indoor fan and a geothermal pipe, and the indoor fan blows air through the chilled water pipeline in summer to reduce the air temperature; in winter, the heat of the circulating water is transferred to the ground through the geothermal pipe, so that the ground is heated.

The height and the width of the current building are differentiated to a certain extent, and the loop resistances of the tail ends in the circulating water system are different. Traditional single water pump circulating water system is at the during operation, in order to satisfy the temperature regulation in whole building, the lift of water pump needs to satisfy the normal work of the biggest loop of resistance in whole building, because the work energy consumption of water pump is directly proportional rather than the lift of during operation, when the inside branch equipment during operation of building, the work lift of water pump is far greater than the required lift of equipment normal work in the building, leads to central air conditioning system energy consumption too high, causes very big waste.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect of high energy consumption of the circulating water system of the two-combined-supply system in the prior art, so as to provide an energy supply device for the two-combined-supply system and a control method thereof.

In order to solve the above technical problem, the present invention provides an energy supply device for a two-combined supply system, including:

a host;

the main pipeline is connected with the host at two ends and provided with a first pump body;

and the plurality of groups of branch pipelines are arranged on the main pipeline in parallel, a plurality of user ends are arranged on the branch pipelines in parallel, and the branch pipelines are provided with second pump bodies.

Preferably, the main pipeline comprises a main flow supply pipe and a main return pipe, an outlet of the main flow supply pipe is communicated with an inlet of the main return pipe, the inlet of the main flow supply pipe and the outlet of the main return pipe are both connected with the host, and the first pump body is installed on the main return pipe.

Preferably, the branch pipeline comprises a secondary flow supply pipe and a secondary return pipe, an inlet of the secondary flow supply pipe is connected with the main flow supply pipe, an outlet of the secondary return pipe is connected with the main return pipe, an outlet of the secondary flow supply pipe and an inlet of the secondary return pipe are both connected with the user side, and the second pump body is installed at a position, close to the main pipeline, of the secondary flow supply pipe.

Preferably, the main pipeline further comprises a collecting pipe, an inlet of the collecting pipe is connected with an outlet of the at least one secondary return pipe, and an outlet of the collecting pipe is connected with an inlet of the main return pipe.

Preferably, an auxiliary tank is mounted on the main return pipe for temporarily storing the energizing medium in the main return pipe.

Preferably, the first pump body is installed between the auxiliary tank and the main machine.

Preferably, the outlet end of the main supply pipe is fitted with a pressure differential valve.

The invention also provides a control method of the energy supply device of the two-combined-supply system, which comprises the following steps:

energy supply media in the host machine are pumped to corresponding branch pipelines through the main pipeline under the action of the first pump body and the second pump body, and are distributed to corresponding user sides through the branch pipelines;

the energy supply medium used by the user side returns to the branch pipeline and returns to the host after being collected to the main pipeline.

Preferably, the method further comprises the following steps: when the user side starts to work, controlling a second pump body on the branch pipeline corresponding to the user side which starts to work to start to work; and when all the user ends on the same branch pipeline stop working, controlling the second pump body on the branch pipeline to stop working.

Preferably, the method further comprises the following steps: the main pipeline comprises a main flow supply pipe and a main return pipe which are connected in a switching mode, and when all the second pump bodies stop working, the main flow supply pipe and the main return pipe are controlled to be communicated; when the second pump body works and stops working with at least one user end on the corresponding branch pipeline, the main flow supply pipe is controlled to be communicated with the main return pipe; when the second pump body works and all the user ends on the corresponding branch pipelines work, the main flow supply pipe and the main return pipe are controlled to be disconnected.

The technical scheme of the invention has the following advantages:

1. the invention provides a two-combined-supply system energy supply device, which comprises: a host; the main pipeline is connected with the host at two ends and provided with a first pump body; and the plurality of groups of branch pipelines are arranged on the main pipeline in parallel, a plurality of user ends are arranged on the branch pipelines in parallel, and the branch pipelines are provided with second pump bodies.

Through installing the first pump body on the main line and cooperating a plurality of second pump bodies of installing on the branch pipeline and drawing the energy supply medium to the user side from the host computer, utilize a plurality of second pump bodies to give the user side energy supply of difference respectively, reduced the lift of a plurality of second pump bodies, reduced the energy consumption of second pump body in the course of the work. Meanwhile, one branch pipeline is provided with a second pump body, the second pump bodies with different lifts can be installed on different branch pipelines according to the lifts required by the branch pipelines, and the second pump bodies are distributed according to requirements so as to reduce the energy consumption of the energy supply device of the two-combined-supply system. Many branch pipelines set up in parallel, when the user on the branch pipeline during operation, correspond the work of the second pump body on the branch pipeline, when the user on certain branch pipeline during stop work, correspond the second pump body on the branch pipeline and can the bring to rest and do not influence the normal operating of other branch pipelines, further reduced the energy consumption of the two antithetical couplet confession system energy supply device in operation process.

2. The invention provides an energy supply device of a two-combined supply system, wherein a main pipeline comprises a main flow supply pipe and a main return pipe, an outlet of the main flow supply pipe is communicated with an inlet of the main return pipe, the inlet of the main flow supply pipe and the outlet of the main return pipe are both connected with a main engine, and a first pump body is arranged on the main return pipe. The energy supply medium of the user side is pumped to the host by the first pump body, the host adjusts the temperature of the energy supply medium, the energy supply medium is pumped to the secondary flow supply pipe through the main flow supply pipe, and the energy supply medium is further distributed to the user side through the second pump body. Utilize first pump body and second pump body stage regulation, utilize a second pump body to carry out the distribution of energy supply medium for a plurality of clients of same level simultaneously to make the second pump body can by make full use of.

3. The invention provides an energy supply device of a two-combined supply system, which further comprises a collecting pipe, wherein the inlet of the collecting pipe is connected with the outlet of at least one secondary return pipe, and the outlet of the collecting pipe is connected with the inlet of a main return pipe. Utilize the collecting pipe to collect back rethread main return pipe with the energy supply medium of user, when all user's stop work, the host computer is got back to in can directly following the main return pipe to the energy supply medium in the main supply pipe, avoid the energy supply medium to enter into again in the export of secondary return pipe for the quantity of the energy supply medium that need be taken out from secondary collecting pipe increases, leads to the energy consumption increase of the first pump body and the second pump body.

4. The invention provides an energy supply device of a two-combined-supply system, wherein a pressure difference valve is arranged at the outlet end of a main flow supply pipe. The flow of the energy supply medium at the outlet of the main flow supply pipe is controlled through the differential pressure valve, so that the flow flowing into a user side is controlled, and energy waste caused by the fact that the energy supply medium directly flows back to the main return pipe from the outlet of the main flow supply pipe is avoided; meanwhile, the damage to the user side caused by excessive amount of energy supply media flowing into the user side is avoided.

5. The invention provides a control method of an energy supply device of a two-combined supply system, which comprises the following steps: energy supply media in the host machine are pumped to corresponding branch pipelines through the main pipeline under the action of the first pump body and the second pump body, and are distributed to corresponding user sides through the branch pipelines; and the energy supply medium used by the user side flows back to the branch pipeline and is collected to the main pipeline and then returns to the host. Through the graded pumping of the energy supply medium in the host machine by the first pump body and the second pump body, the lift of the first pump body and the second pump body is greatly reduced, and the energy consumption of the first pump body and the second pump body is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a two-combined supply system power supply device provided in an embodiment of the present invention.

Description of reference numerals: 1. a host; 2. a main supply pipe; 3. a main return pipe; 4. a first pump body; 5. a secondary flow supply pipe; 6. a secondary return pipe; 7. a user side; 8. a second pump body; 9. a collector pipe; 10. an auxiliary tank; 11. a controller; 12. a differential pressure valve.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Fig. 1 shows a specific embodiment of the energy supply device for a two-in-one system according to the present invention, which includes: host computer 1, both ends all with the main line that host computer 1 is connected and three groups of branch pipes of installing in parallel on the main line, host computer 1 is used for carrying out temperature regulation to the water as energy supply medium.

The main pipeline comprises a main flow supply pipe 2, a main return pipe 3 and a collecting pipe 9, the outlet of the main flow supply pipe 2 is communicated with the inlet of the main return pipe 3, and the inlet of the main flow supply pipe 2 and the outlet of the main return pipe 3 are connected with the host 1. The outlet of the manifold 9 is also connected to the inlet of the main return pipe 3. An auxiliary tank 10 for temporarily storing the energy supply medium in the main return pipe 3 is mounted on the main return pipe 3, and a first pump body 4 is mounted on the main return pipe 3 between the auxiliary tank 10 and the main machine 1.

The branch pipeline comprises a secondary flow supply pipe 5 and a secondary return pipe 6, the inlet of the three secondary flow supply pipes 5 is connected with the main flow supply pipe 2, the outlet of the secondary return pipe 6 is connected with the inlet of the collecting pipe 9, the other two secondary return pipes 6 are connected in parallel on the collecting pipe 9, the outlet of the secondary flow supply pipe 5 and the inlet of the secondary return pipe 6 are connected with a user side 7, and the second pump body 8 is installed on the position, close to the main pipeline, of the secondary flow supply pipe 5.

The outlet of the main flow supply pipe 2 is provided with a differential pressure valve 12, when the second pump body 8 on each branch pipeline stops working, the energy supply medium can not enter the branch pipeline, and the differential pressure valve is completely opened, so that the energy supply medium can directly flow back to the main return pipe 3. When the second pump body 8 works and the user terminals 7 on the branch pipelines corresponding to the working second pump body 8 all work, the differential pressure valve is completely closed, so that the energy supply media pumped into the branch pipelines by the second pump body 8 are all distributed to the user terminals 7, and the energy carried by the energy supply media can be fully utilized; when at least one user end 7 on the branch pipeline corresponding to the working second pump body 8 stops working, the pressure difference valve is partially opened, the quantity of the energy supply medium pumped by the second pump body 8 is larger than the quantity required by the working user end 7 on the branch pipeline, the excessive energy supply medium directly flows out from the outlet of the main supply flow pipe 2, only the quantity of the energy supply medium required by the working user end 7 on the branch pipeline is provided for the branch pipeline, and the damage to the user end 7 caused by excessive energy supply medium flowing into the user end 7 is prevented.

The host 1, the first pump body 4, the second pump body 8 and the user side 7 are all electrically connected with the controller 11, and the controller 11 is used for controlling the start and the close of the host 1, the first pump body 4, the second pump body 8 and the user side 7. When the indoor temperature of a three-layer villa is regulated by using the two-combined-supply-system energy supply device, each room of the villa is provided with one user end 7, each layer of the villa is provided with one group of branch pipelines, when an air conditioner serving as the user end 7 in one room of a certain layer is opened, the opening signal of the user end 7 is transmitted to the controller 11, the controller 11 controls the first pump body 4 and the second pump body 8 of the layer to start working, the energy supply medium in the host 1 is extracted from the main supply flow pipe 2 to the secondary supply flow pipe 5, the secondary supply flow pipe 5 transmits the energy supply medium to the opened user end 7, and meanwhile, the energy supply medium in the user end 7 is extracted into the host 1 by the first pump body 4 sequentially through the secondary return flow pipe 6, the confluence pipe 9 and the main return pipe 3. Through the required lift of precalculation with energy supply medium pump to different floors to according to the second pump body 8 of the different lifts of calculated lift installation at different floors, distribute as required, avoided the waste of resource, the lift of the rational arrangement second pump body 8, and then reduce the energy consumption of two antithetical couplet confession system energy supply device. Meanwhile, the three branch pipelines are arranged in parallel, when the user end 7 on one branch pipeline works, the second pump body 8 on the branch pipeline works, and when the user end 7 on one branch pipeline stops working, the second pump body 8 on the corresponding branch pipeline can stop running without influencing the normal running of other branch pipelines, so that the energy consumption of the energy supply device of the two-combined-supply system in the running process is greatly reduced.

As an alternative embodiment, when the main engine 1 is far from the branch pipe, the first pump body 4 is also mounted on the main flow supply pipe 2. The first pump body 4 arranged on the main flow supply pipe 2 is used for pumping the energy supply medium to the position near the branch pipeline, and then a plurality of groups of second pump bodies 8 are used for distributing the energy supply medium at different floors. The minimum lift required by all the first pump body 4 and the second pump body 8 can be obtained through calculation, and therefore the energy consumption of the energy supply device of the two-combined-supply system in the working process is reduced.

The invention also provides a specific implementation mode of the control method of the energy supply device of the two-combined supply system, which comprises the following steps: energy supply media in the host machine are pumped to corresponding branch pipelines through the main pipeline under the action of the first pump body and the second pump body, and are distributed to corresponding user sides through the branch pipelines; the energy supply medium used by the user side returns to the branch pipeline and returns to the host after being collected to the main pipeline.

When the user end 7 starts to work, controlling the second pump body 8 on the branch pipeline corresponding to the user end 7 to start to work; when all the user terminals 7 on the same branch pipeline stop working, controlling the second pump body on the branch pipeline to stop working by 8; and when the second pump bodies 8 on the branch pipelines stop working, controlling the first water pump 4 to stop working.

The main pipeline comprises a main flow supply pipe 2 and a main return pipe 3 which are connected in a switching mode, and when all the second pump bodies stop working, the main flow supply pipe 2 and the main return pipe 3 are controlled to be communicated; when the second pump body 8 works and stops working with at least one user end 7 on the corresponding branch pipeline, the main flow supply pipe is controlled to be communicated with the main return pipe 3; when the second pump body 8 works and all the user terminals 7 on the corresponding branch pipelines work, the main supply flow pipe 2 and the main return flow pipe 3 are controlled to be disconnected. By controlling the opening or closing of the outlet of the main supply pipe, energy waste caused by the fact that energy supply media directly flow back to the main return pipe from the outlet of the main supply pipe can be avoided; meanwhile, the damage to the user side caused by excessive amount of energy supply media flowing into the user side is avoided.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The utility model provides a two ally oneself with confession system energy supply device which characterized in that includes:

a host (1);

the two ends of the main pipeline are connected with the main machine (1), and a first pump body (4) is installed on the main pipeline;

the multi-group branch pipelines are arranged on the main pipeline in parallel, a plurality of user ends (7) are arranged on the branch pipelines in parallel, and the branch pipelines are provided with second pump bodies (8).

2. The energy supply device of the two-combined system according to claim 1, wherein the main pipeline comprises a main flow supply pipe (2) and a main return pipe (3), an outlet of the main flow supply pipe (2) is communicated with an inlet of the main return pipe (3), the inlet of the main flow supply pipe (2) and the outlet of the main return pipe (3) are both connected with the main machine (1), and the first pump body (4) is mounted on the main return pipe (3).

3. The energy supply device of two-combined supply system according to claim 2, wherein the branch pipeline comprises a secondary supply pipe (5) and a secondary return pipe (6), the inlet of the secondary supply pipe (5) is connected with the main supply pipe (2), the outlet of the secondary return pipe (6) is connected with the main return pipe (3), the outlet of the secondary supply pipe (5) and the inlet of the secondary return pipe (6) are both connected with the user terminal (7), and the second pump body (8) is installed at the position of the secondary supply pipe (5) close to the main pipeline.

4. The system energy supply arrangement according to claim 3, characterized in that the main line further comprises a manifold (9), the inlet of the manifold (9) being connected to the outlet of at least one secondary return pipe (6), the outlet of the manifold (9) being connected to the inlet of the main return pipe (3).

5. A cogeneration system power supply according to any one of claims 2 to 4, wherein said main return pipe (3) is provided with an auxiliary tank (10) for temporarily storing the power supply medium in the main return pipe (3).

6. The cogeneration system power device according to claim 5, characterized in that said first pump body (4) is mounted between said auxiliary tank (10) and said main machine (1).

7. The cogeneration system power supply according to any one of claims 2 to 4, characterized in that the outlet end of said main supply pipe (2) is fitted with a differential pressure valve (12).

8. A control method of an energy supply device of a two-combined supply system is characterized by comprising the following steps:

energy supply media in the host (1) are pumped to corresponding branch pipelines through the main pipeline under the action of the first pump body (4) and the second pump body (8), and are distributed to corresponding user terminals (7) through the branch pipelines;

the energy supply medium used by the user side (7) flows back to the branch pipeline and returns to the host (1) after being collected to the main pipeline.

9. The control method of the two-combined power supply device according to claim 8, further comprising: when the user side (7) starts to work, the second pump body (8) on the corresponding branch pipeline is controlled to start to work; when all the user ends (7) on the same branch pipeline stop working, the second pump body (8) on the branch pipeline is controlled to stop working.

10. The control method of the two-combined power supply device according to claim 9, further comprising: the main pipeline comprises a main flow supply pipe (2) and a main return pipe (3) which are connected in a switching mode, and when all the second pump bodies (8) stop working, the main flow supply pipe (2) is controlled to be communicated with the main return pipe (3); when the second pump body (8) works and stops working with at least one user end (7) on the corresponding branch pipeline, the main flow supply pipe (2) is controlled to be communicated with the main return pipe (3); when the second pump body (8) works and all the user ends (7) on the corresponding branch pipelines work, the main flow supply pipe (2) and the main return pipe (3) are controlled to be disconnected.