CN219934098U

CN219934098U - Energy-saving type heating system for public building

Info

Publication number: CN219934098U
Application number: CN202321327488.XU
Authority: CN
Inventors: 郭忠平; 马岳龙; 刘新杰; 张慧霞; 赵渊; 张可君
Original assignee: Shanxi Shiqingyuan Energy Saving Technology Co ltd
Current assignee: Shanxi Shiqingyuan Energy Saving Technology Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-10-31
Anticipated expiration: 2033-05-29

Abstract

The utility model belongs to the technical field of heating network control systems, and discloses an energy-saving heating system for public buildings. The energy-saving heating system is characterized in that a water supply bypass pipe and a water return bypass pipe are newly added between a water supply pipeline and a water return pipeline of an original heating pipe network, an electric regulating valve is arranged on the water supply bypass pipe, a water mixing pump and a pressure gauge are arranged on the water return bypass pipe, and a check valve is arranged on the water return bypass pipe at one side of the water supply pipeline to prevent medium from flowing backwards; in addition, the newly added water supply bypass pipe and return water bypass pipe respectively realize cutting-off and throttling control of the whole modified pipe network by the second flange butterfly valve and the third flange butterfly valve; according to the intelligent heat cloud platform, the electric control valve and the water mixing pump realize automatic switching of different control modes by executing the control instruction sent by the intelligent heat cloud platform and combining the water supply temperature and the water return pressure respectively collected by the temperature sensor and the pressure sensor according to the requirements of seasons and working time, so that the aim of saving energy is achieved.

Description

Energy-saving type heating system for public building

Technical Field

The utility model belongs to the technical field of heating network control systems, and particularly relates to an energy-saving heating system for public buildings.

Background

At present, china has poor energy management foundation in a heat supply pipe network of a public building, high energy consumption and great energy saving potential. According to the statistics of related reports published on the network, the energy consumption of people per country is 5-7 times higher than that of developed countries and 10-20 times higher than that of common civil buildings, and the heat supply energy consumption of public buildings in China accounts for 36% of the energy consumption of the whole buildings. Therefore, reducing the energy consumption of public buildings becomes an extremely important and difficult task in the whole social energy-saving and emission-reducing work.

Under the existing heating mode, in order to ensure that the heating meets the standard, and simultaneously achieve economic operation, a heating operation unit needs to perform scientific operation adjustment on a heating system. On the supply side, the heat supply flow of a heat supply pipe network is always constant flow regulation; however, on the user side, the heating load changes at any time along with weather changes, sunlight intensity and user adjustment, and certain peak changes exist, so that the two contradictions between supply and demand are formed on the operation mode. For example, public buildings, especially office buildings, have more than ten hours of unmanned time for working every day, have no work for holidays such as Saturday, spring festival and the like, and the time periods are full-load heating, so that a large amount of energy consumption is wasted.

Therefore, according to the use characteristics of the building and the heat consumption habits of users, the method strives for reflow surplus heat on the premise of ensuring the heat supply effect, and simultaneously ensures that the flow of the household network is unchanged and the water supply temperature of the household network is not reduced. How to design a heating energy-saving control system capable of meeting the above requirements for application in public buildings has become a problem to be solved.

Disclosure of Invention

Aiming at the problem that the prior heating mode has heat waste aiming at the use characteristics of buildings and the heat consumption habit of users in the background technology, the utility model performs related energy-saving transformation based on the prior heating pipe network structure and provides an energy-saving heating system for public buildings.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an energy-saving heating system for public building, includes heat supply unit end and heat utilization user end, connects through supply line, wet return line respectively between the two to this circulation transportation that realizes the heat source supply line and wet return line's both ends are provided with first flange butterfly valve respectively, and the fourth is mainly played and is cut off and throttle effect, still be provided with temperature sensor on supply line and wet return line's both ends respectively, be located heat utilization user end one side supply line and wet return line are provided with pressure sensor respectively, temperature sensor and pressure sensor's output is connected with wisdom heat utilization cloud platform's input interface through the data line respectively be provided with water supply bypass pipe, bypass pipe return water between supply line and the wet return line respectively, the intelligent water supply system is characterized in that an electric regulating valve is arranged on the water supply bypass pipe, a water mixing pump is arranged on the water return bypass pipe, pressure gauges are respectively arranged on the water return bypass pipes on two sides of the water mixing pump, the two pressure gauges are respectively used for measuring medium pressure in the water return bypass pipe and displaying the medium pressure on site, the electric regulating valve and the water mixing pump are connected with an output interface of the intelligent heat cloud platform through wires, the electric regulating valve and the water mixing pump respectively execute regulating instructions sent by the intelligent heat cloud platform, and the temperature sensor and the pressure sensor are combined according to requirements of seasons and working time to realize automatic switching of different regulating modes of water supply, water return temperature and pressure respectively collected by the temperature sensor, so that the aim of saving energy is achieved.

As further explanation and limitation of the technical scheme, the water mixing pump is arranged on the backwater bypass pipe through two soft rubber connections, and the two soft rubber connections play a role in shock resistance and noise reduction for the operation of the water mixing pump.

As a further supplementary explanation of the above technical solution, two ends of the water supply bypass pipe are respectively provided with a second flange butterfly valve, and the two second flange butterfly valves mainly play roles of cutting off and throttling the medium in the water supply bypass pipe; and the two ends of the backwater bypass pipe are respectively provided with a third flange butterfly valve, and the two third flange butterfly valves mainly play roles of cutting off and throttling the medium in the backwater bypass pipe.

As a further supplementary explanation of the technical scheme, an ultrasonic heat meter is arranged on the water return line at one side of the heat utilization user end, the output end of the ultrasonic heat meter is connected with the input interface of the intelligent heat utilization cloud platform through a data line, and the heat utilization amount of the measurement user is uploaded to the intelligent heat utilization cloud platform, so that the heat utilization amount of the measurement user can be monitored conveniently in different seasons and working hours.

As a further supplementary explanation of the above technical solution, a filter is provided on the water supply line at one side of the heating unit end, and the filter is used for removing solid impurities in the heating medium, preventing the pipeline and the equipment from being blocked, thereby affecting the heating effect.

As a further supplementary illustration of the above solution, a return water bypass pipe on the side of the water supply line is provided with a check valve for preventing backflow of the medium.

Compared with the heating mode without energy-saving pipe network transformation, the heating mode after energy-saving transformation by adopting the utility model has the following advantages:

1. according to the utility model, a water supply bypass pipe and a water return bypass pipe are added between an original water supply pipeline and a water return pipeline, wherein an electric regulating valve is arranged on the water supply bypass pipe, a water mixing pump is arranged on the water return bypass pipe, pressure gauges are respectively arranged on the water return bypass pipes on two sides of the water mixing pump, the two pressure gauges are used for measuring medium pressure in the water return bypass pipe and displaying the medium pressure on site, the electric regulating valve and the water mixing pump are connected with an output interface of an intelligent heat cloud platform through an electric wire, and execute regulating instructions sent by the intelligent heat cloud platform, and realize automatic switching of different regulating modes according to requirements of seasons and working time by combining water supply, water return temperatures and pressures respectively collected by a temperature sensor and a pressure sensor, so that the aim of saving energy is achieved.

2. The utility model respectively arranges the second flange butterfly valve at two ends of the water supply bypass pipe, and the third flange butterfly valve at two ends of the backwater bypass pipe, the newly added water supply bypass pipe and backwater bypass pipe respectively arrange the second flange butterfly valve and the third flange butterfly valve to realize the cutting-off and the throttling control of the whole reconstruction pipe network, and simultaneously, the backwater bypass pipe at one side of the water supply pipeline is provided with a check valve for preventing the medium from flowing backwards.

3. According to the intelligent heat cloud platform, the ultrasonic heat meter is arranged on the water return line at one side of the heat user side, and the ultrasonic heat meter uploads the heat of the user to the intelligent heat cloud platform, so that the heat consumption of the user can be monitored in different seasons and working hours.

4. The filter is arranged on the water supply pipe at one side of the heat supply unit end and is used for removing larger solid impurities in the heat supply medium, and the blockage of water supply and return pipelines, a mixing pump and electric regulating headlight equipment is prevented, so that the heat supply effect is influenced.

Drawings

Fig. 1 is a schematic diagram of a system of the present utility model.

In the figure: the heat supply unit end 100, the heat utilization user end 200, the water supply pipeline 300, the water return pipeline 400, the water supply bypass pipe 500 and the water return bypass pipe 600.

The device comprises a first flange butterfly valve 1, a filter 2, an electric regulating valve 3, a water mixing pump 4, a rubber flexible connection 5, a check valve 6, a pressure gauge 7, a wave heat meter 8, a temperature sensor 9, a pressure sensor 10, a second flange butterfly valve 11 and a third flange butterfly valve 12.

Detailed Description

In order to further explain the technical scheme of the utility model, the utility model is further described by four embodiments according to the site improvement construction condition with reference to the system principle of fig. 1.

As shown in fig. 1, an energy-saving heating system for public building comprises a heating unit end 100 and a heat utilization user end 200, wherein the two ends are respectively connected through a water supply pipeline 300 and a water return pipeline 400, so as to realize the circulation and transportation of a heat source, the two ends of the water supply pipeline 300 and the water return pipeline 400 are respectively provided with a first flange butterfly valve 1, the four ends mainly play roles of cutting off and throttling, the two ends of the water supply pipeline 300 and the water return pipeline 400 are respectively provided with a temperature sensor 9, the water supply pipeline 300 and the water return pipeline 400 positioned at one side of the heat utilization user end 200 are respectively provided with a pressure sensor 10, and the output ends of the temperature sensor 9 and the pressure sensor 10 are respectively connected with an input interface of an intelligent heat utilization cloud platform through data lines.

Example 1

The following modifications are performed in the original pipe network: the water supply pipeline 300 and the water return pipeline 400 are respectively provided with a water supply bypass pipe 500 and a water return bypass pipe 600, the water supply bypass pipe 500 is provided with an electric regulating valve 3, the water return bypass pipe 600 is provided with a water mixing pump 4, the water mixing pump 4 is arranged on the water return bypass pipe 600 through two soft rubber connections 5, and the two soft rubber connections 5 play a role in vibration resistance and noise reduction for the operation of the water mixing pump 4. The two pressure gauges 7 are respectively arranged on the backwater bypass pipes 600 on two sides of the water mixing pump 4, the two pressure gauges 7 are respectively used for measuring the medium pressure in the backwater bypass pipes 600 and displaying the medium pressure on site, the electric regulating valve 3 and the water mixing pump 4 are connected with the output interface of the intelligent heat cloud platform through wires, the electric regulating valve 3 and the water mixing pump 4 respectively execute regulating instructions sent by the intelligent heat cloud platform, and the electric regulating valve and the water mixing pump are combined with the water supply, backwater temperature and pressure respectively collected by the temperature sensor 9 and the pressure sensor 10 according to the requirements of seasons and working time to realize different regulating modes to realize automatic switching, so that the energy saving purpose is achieved.

Example two

In order to ensure that the whole modified heat supply pipe network can normally and safely run, the following implementation modes are supplemented: (2) Two ends of the water supply bypass pipe 500 are respectively provided with a second flange butterfly valve 11, and the two second flange butterfly valves 11 mainly play roles of cutting off and throttling the medium in the water supply bypass pipe 500; third flange butterfly valves 12 are respectively arranged at two ends of the return water bypass pipe 600, and the two third flange butterfly valves 12 mainly play roles of cutting off and throttling the medium in the return water bypass pipe 600. (2) We provide a check valve 6 on the return water bypass pipe 600 on the side of the water supply line 300, the check valve 6 being used to prevent backflow of the medium.

Example III

In order to intuitively monitor the energy-saving effect of the transformed heat through the intelligent heat cloud platform, in the first embodiment and the second embodiment, the ultrasonic heat meter is connected with the intelligent heat cloud platform, and the specific implementation mode is as follows: the ultrasonic heat meter 8 is arranged on the water return pipeline 400 on one side of the heat utilization user end 200, the output end of the ultrasonic heat meter 8 is connected with the input interface of the intelligent heat utilization cloud platform through a data line, and the heat utilization amount of a measurement user is uploaded to the intelligent heat utilization cloud platform, so that the heat utilization amount can be conveniently monitored in different seasons and under different working hours.

Example IV

Because larger solid impurities are easy to exist in water supply of a heat supply unit, if the solid impurities are not removed, the normal operation of the whole pipe network can be influenced. Therefore, we provide a filter 2 on the water supply line 300 at the side of the unit end 100 for heating, the filter 2 is used to remove solid impurities in the heating medium, and prevent the blockage of the line and the equipment, thereby affecting the heating effect.

The intelligent heat cloud platform which is independently developed by Taiyuan three-sword automation technology limited company is combined with the four embodiments, the working and working hours and the heat habit of a public building system are comprehensively considered, time-sharing and partition temperature control is achieved, and accurate regulation and control are implemented according to different outdoor temperatures, different users and different heat supply terminals, so that the purpose of saving energy is achieved.

According to the improved heating pipe network, several regulation modes and operation modes are provided.

1. Regulation mode

(1) Operating time regulation mode: monday through Friday (08:00-22:00); (2) non-operating time Regulation mode: monday to Friday (22:00-08:00), saturday, sunday, and legal holidays; (3) Special mode students during cold and false periods and other special conditions (i.e. minimum heat supply mode).

The intelligent automatic control requirement of the heat cloud platform is as follows: the working time regulation mode and the non-working time regulation mode are automatically switched according to time, and the special mode can be manually switched according to actual conditions.

2. Mode of operation

(1) Operating time regulation mode: the regulation and control target is that the temperature is changed in stages, namely the average temperature of the water supply and return at the side of a household network is changed in stages, and the regulation and control strategy is as follows:

the operation mode of the water mixing pump in different time periods is as follows:

；

the setting of the electric regulating valve is as follows according to the average temperature automatically regulated aperture of different backwater that the outdoor temperature corresponds to:

。

(2) Non-operating time regulation mode: the regulation and control target is antifreeze, the regulation and control strategy is that the water mixing pump intermittently operates, and the electric regulating valve keeps a certain opening degree;

。

(3) Special mode: the regulation and control targets are the maximum or minimum heating quantity, and the regulation and control strategy is as follows:

。

therefore, the improved pipe network can not only respectively control and monitor the input heat of the whole public building and the input heat of each building in the public building group (realize time-division heat control), but also reasonably switch different control strategies according to the requirements of seasons and working time (realize climate and time compensation).

Energy consumption comparison analysis table unit before and after energy saving regulation of certain school: GJ

The energy consumption comparison analysis table is used for controlling heat after pipe network transformation of a certain school. According to the data of the comparison table, under the condition that the cooling and flow reducing rate is adopted during the cold and fake period of the school, the system is controlled to run for 8 hours (10:00-18:00) each day, the average daily heat consumption can be saved by 10%, the whole heating season is controlled according to the heat consumption rule of the building, and the energy saving rate is expected to reach 15% -20%.

While the principal features and advantages of the present utility model have been shown and described, it will be apparent to those skilled in the art that the detailed description of the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics of the utility model, and the inventive concept and design concept of the utility model shall be equally included in the scope of the utility model disclosed in the appended claims. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides an energy-saving heating system for public building, is including heat supply unit end (100) and heat utilization user end (200), is connected through supply line (300) between the two respectively, wet return line (400) to this circulation that realizes the heat source is provided with first flange butterfly valve (1) respectively on the both ends of supply line (300) and wet return line (400), and the fourth mainly plays cutting off and throttle effect still be provided with temperature sensor (9) respectively on the both ends of supply line (300) and wet return line (400), be located be provided with pressure sensor (10) respectively on supply line (300) and wet return line (400) of heat utilization user end (200) one side, the output of temperature sensor (9) and pressure sensor (10) are connected with the input interface of wisdom heat utilization cloud platform through the data line respectively, its characterized in that: be provided with water supply by-pass pipe (500), return water by-pass pipe (600) respectively between water supply pipe (300) and return water pipe (400) be provided with electric control valve (3) on water supply by-pass pipe (500) be provided with water mixing pump (4) on return water by-pass pipe (600), be located be provided with manometer (7) on return water by-pass pipe (600) of water mixing pump (4) both sides respectively, two manometer (7) are used for measuring respectively medium pressure in return water by-pass pipe (600) and demonstration on spot, electric control valve (3) and water mixing pump (4) are connected with the output interface of wisdom heat cloud platform through the electric wire, and its two respectively carry out the regulation command that wisdom heat cloud platform sent to combine water supply, return water temperature and pressure that temperature sensor (9) and pressure sensor (10) gathered respectively according to the requirement of season and operating time realize different regulation and control mode automatic switch, with this purpose that reaches energy-conservation.

2. An energy efficient heating system for public buildings as defined in claim 1, wherein: the water mixing pump (4) is arranged on the backwater bypass pipe (600) through two soft rubber connections (5), and the two soft rubber connections (5) play a role in shock resistance and noise reduction for the running of the water mixing pump (4).

3. An energy efficient heating system for public buildings as defined in claim 1, wherein: two ends of the water supply bypass pipe (500) are respectively provided with a second flange butterfly valve (11), and the two second flange butterfly valves (11) mainly cut off and throttle the medium in the water supply bypass pipe (500); and the two ends of the backwater bypass pipe (600) are respectively provided with a third flange butterfly valve (12), and the two third flange butterfly valves (12) mainly cut off and throttle the medium in the backwater bypass pipe (600).

4. An energy efficient heating system for public buildings according to any one of claims 1 to 3, wherein: be located return line (400) of heat user end (200) one side is last to be provided with ultrasonic heat meter (8), the output of ultrasonic heat meter (8) is connected with wisdom heat cloud platform's input interface through the data line to will measure user's heat to use on the heat cloud platform to wisdom, be convenient for use the monitoring of heat under different seasons and the operating time.

5. An energy efficient heating system for public buildings as defined in claim 4, wherein: the water supply pipeline (300) positioned at one side of the heat supply unit end (100) is provided with a filter (2), and the filter (2) is used for removing solid impurities in a heat supply medium and preventing the pipeline and equipment from being blocked, thereby influencing the heat supply effect.

6. An energy efficient heating system for public buildings as defined in claim 5, wherein: a return water bypass pipe (600) positioned on one side of the water supply pipeline (300) is provided with a check valve (6), and the check valve (6) is used for preventing medium from flowing back.