Heating system for improving thermal imbalance of building

Abstract

The invention discloses a heating system for improving thermal imbalance of a building, and relates to the technical field of heating, the heating system comprises a plurality of heating pipelines, the heating pipelines are arranged from the top layer of the building to the bottom layer of the building, a plurality of radiators are connected in series on the heating pipelines, and a radiator is arranged in each floor of the building; the first end of the heating pipeline is connected with a first heating branch and a second warming branch, a first valve is arranged between the first heating branch and the first end of the heating pipeline, and a fourth valve is arranged between the second warming branch and the first end of the heating pipeline. A first valve is arranged between the first end of the heating pipeline and the second end of the heating pipeline, a second end of the heating pipeline is connected with a second heating branch and a first back heating branch, and a second valve is arranged between the second heating branch and the second end of the heating pipeline. Therefore, the heating system can directly supply heat to the floor users which do not reach the heating temperature, and the heating energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heating, in particular to a heating system for improving thermal imbalance of buildings. Background Art

[0002] In existing urban heating, thermal vertical imbalance often occurs. Thermal vertical imbalance not only affects the indoor thermal environment and thermal comfort of residents, but also causes the heating center to overheat some users of the heating system in order to ensure the room temperature of the lowest user. Overheating will cause a large amount of heat loss in the heating system. Therefore, ensuring uniform indoor temperature on each floor of the building can not only improve the indoor thermal environment, but also reduce heating energy consumption.

[0003] Therefore, how to improve the heating quality and reduce the heating energy consumption at the same time has become a technical problem that technical personnel in this field need to solve urgently. Summary of the invention

[0004] The object of the present invention is to provide a heating system for improving thermal imbalance of a building, so as to improve the heating quality and reduce the heating energy consumption at the same time.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a heating system for improving thermal imbalance of a building, the heating system comprising:

[0007] A plurality of heating pipelines, wherein the heating pipelines are arranged from the high floors of the building to the low floors of the building, and a plurality of radiators are connected in series on the heating pipelines, and each user in the building is provided with the radiator;

[0008] The first end of the heating pipeline is respectively connected to a first heating branch and a second return-warming branch, a first valve is provided between the first heating branch and the first end of the heating pipeline, and a fourth valve is provided between the second return-warming branch and the first end of the heating pipeline;

[0009] The second end of the heating pipeline is respectively connected to the second heating branch and the first return-warming branch, a second valve is provided between the second heating branch and the second end of the heating pipeline, and a third valve is provided between the first return-warming branch and the second end of the heating pipeline;

[0010] A heat source, wherein the output port of the heat source is connected to the first heating branch and the second heating branch through a heating trunk line, and the input port of the heat source is connected to the first heating branch and the second heating branch through a heating trunk line, and a delivery pump is provided at the output port;

[0011] When the heating system is in a heating state: turning on the delivery pump;

[0012] The first valve and the third valve are opened, and the second valve and the fourth valve are kept closed. When the heating system reaches the timing of switching between heating supply and heat recovery flow, the second valve and the fourth valve are opened, and the first valve and the third valve are closed;

[0013] Alternatively, the second valve and the fourth valve are opened, and the first valve and the third valve are kept closed; when the heating system reaches the timing for switching the heating and heat recovery flow directions, the first valve and the third valve are opened, and the second valve and the fourth valve are closed.

[0014] Preferably, when the heating system reaches the timing of switching between heating supply and heat recovery flow: the opening time of the first valve exceeds the set time;

[0015] Or, the temperature difference between the users on the upper floors and the users on the lower floors of the building exceeds the set temperature difference;

[0016] Alternatively, the opening time of the first valve exceeds the set time, and one of the high-level users and the low-level users is not lower than the set temperature, and the other is lower than the set temperature;

[0017] Alternatively, the opening time of the first valve exceeds the set time, and the temperatures of the high-level users and the low-level users are both lower than the set temperature, and the temperature difference is greater than the set temperature difference.

[0018] Preferably, a plurality of heat accumulators are provided on the heating pipeline, and the heat accumulators are provided on each floor of the building.

[0019] Preferably, the radiator comprises a first interface, a second interface, a third interface and a fourth interface, all of which are connected to the heating pipeline and are interconnected, the first interface, the second interface, the third interface and the fourth interface are arranged in sequence from the first end of the heating pipeline toward the second end of the heating pipeline, the heat accumulator is arranged between the second interface and the third interface, and the heat accumulator is respectively connected to the second interface and the third interface;

[0020] In the lower area of ​​the heating pipeline, a first one-way valve is provided between the second interface and the heat accumulator, and the first one-way valve is used to prevent the heating medium from continuing to flow toward the lower area, and the temperature of the heating medium flowing from the high area into the lower area is not higher than the temperature of the lower users;

[0021] In the high-rise area of ​​the heating pipeline, a second one-way valve is provided between the second interface and the heat accumulator, and the second one-way valve is used to prevent the heating medium from continuing to flow toward the high-rise area. The temperature of the heating medium flowing from the low-rise area into the high-rise area is not higher than the temperature of the high-rise users.

[0022] Preferably, the heating system further comprises a plurality of temperature sensors, and users on each floor are connected to the temperature sensors.

[0023] Preferably, the heating system further comprises a controller, and the first valve, the second valve, the third valve, the fourth valve, and the temperature sensor are all connected to the controller by signal;

[0024] When the heating system is in the heating state, the controller turns on the delivery pump;

[0025] The heating system opens the first valve and the third valve, and closes the second valve and the fourth valve. When the heating system reaches the timing of switching between heating supply and heat recovery flow, the controller opens the second valve and the fourth valve, and closes the first valve and the third valve.

[0026] Alternatively, the heating system opens the second valve and the fourth valve, and closes the first valve and the third valve. When the heating system reaches the timing for switching the heating and heat recovery flow directions, the controller opens the first valve and the third valve, and closes the second valve and the fourth valve.

[0027] Compared with the prior art, the present invention has achieved the following technical effects:

[0028] The heating system of the present invention comprises: a plurality of heating pipelines, the heating pipelines are arranged from the top floor of the building to the bottom floor of the building, a plurality of radiators are connected in series on the heating pipelines, and a radiator is arranged in each floor of the building; the first end of the heating pipeline is respectively connected with the first heating branch and the second return-warming branch, a first valve is arranged between the first heating branch and the first end of the heating pipeline, and a fourth valve is arranged between the second return-warming branch and the first end of the heating pipeline; the second end of the heating pipeline is respectively connected with the second heating branch and the first return-warming branch, a second valve is arranged between the second heating branch and the second end of the heating pipeline, and a third valve is arranged between the first return-warming branch and the second end of the heating pipeline; a heat source, the output port of the heat source is connected through the heat supply The heating trunk line is connected with the first heating branch line and the second heating branch line respectively, the input port of the heat source is connected with the first heating branch line and the second heating branch line respectively through the heating trunk line, and a delivery pump is provided at the output port; when the heating system is in the heating state: the delivery pump is turned on; wherein, the first valve and the third valve are turned on, and the second valve and the fourth valve are kept closed, and when the heating system reaches the timing of switching the heating and heat recovery flow directions, the second valve and the fourth valve are turned on, and the first valve and the third valve are closed; or, the second valve and the fourth valve are turned on, and the first valve and the third valve are kept closed, and when the heating system reaches the timing of switching the heating and heat recovery flow directions, the first valve and the third valve are turned on, and the second valve and the fourth valve are closed;

[0029] Among them, because the heating system in the present invention switches the heating supply and heat recovery flow directions when the time for switching the heating supply and heat recovery flow directions is reached, the heating system in the present invention will not always supply heat and recover heat in one direction, and can directly provide heat to users on the floor whose heating temperature has not reached, thereby avoiding the problem of always supplying heat and recovering heat in one direction, and increasing heat output and / or extending heating time to ensure the heating quality of all users in the building, thereby reducing the heat dissipated on the transmission path and reducing heating energy consumption. In short, the present invention effectively reduces heating energy consumption while ensuring the heating quality of users in the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 Schematic diagram of the heating system for improving thermal imbalance in buildings;

[0032] Among them, 1. Heating pipeline; 2. First heating branch; 3. Second heating branch; 4. Heating main line; 5. First heating branch; 6. Second heating branch; 7. Heating main line; 8. First valve; 9. Second valve; 10. Third valve; 11. Fourth valve; 12. First check valve; 13. Second check valve; 14. Temperature sensor; 15. Radiator; 16. Heat accumulator; 17. Controller. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1As shown, the present invention discloses a heating system for improving thermal imbalance of a building, the heating system comprising: a plurality of heating pipelines 1, the heating pipelines 1 are arranged from the high floors of the building to the low floors of the building, a plurality of radiators 15 are connected in series on the heating pipelines 1, and a radiator 15 is arranged in each floor of the building; a first end of the heating pipeline 1 is respectively connected to a first heating branch 2 and a second warming branch 6, a first valve 8 is arranged between the first heating branch 2 and the first end of the heating pipeline 1, and a fourth valve 8 is arranged between the second warming branch 6 and the first end of the heating pipeline 1 Valve 11; the second end of the heating pipeline 1 is respectively connected to the second heating branch 3 and the first return-warming branch 5, a second valve 9 is provided between the second heating branch 3 and the second end of the heating pipeline 1, and a third valve 10 is provided between the first return-warming branch 5 and the second end of the heating pipeline 1; a heat source, the output port of the heat source is respectively connected to the first heating branch 2 and the second heating branch 3 through the heating trunk 4, the input port of the heat source is respectively connected to the first return-warming branch 5 and the second return-warming branch 6 through the return-warming trunk 7, and a delivery pump is provided at the output port;

[0036] When the heating system is in the heating state: turn on the delivery pump; wherein, open the first valve 8 and the third valve 10, keep the second valve 9 and the fourth valve 11 closed, when the heating system reaches the timing of switching the heating and heat recovery flow directions, open the second valve 9 and the fourth valve 11, and close the first valve 8 and the third valve 10; or, open the second valve 9 and the fourth valve 11, keep the first valve 8 and the third valve 10 closed, when the heating system reaches the timing of switching the heating and heat recovery flow directions, open the first valve 8 and the third valve 10, and close the second valve 9 and the fourth valve 11.

[0037] Among them, because the heating system in the present invention switches the heating supply and heat recovery flow directions when the time for switching the heating supply and heat recovery flow directions is reached, the heating system in the present invention will not always supply heat and recover heat in one direction, and can directly provide heat to users on the floors that have not reached the heating temperature, thereby achieving homogenization of the heating temperature in the building, avoiding the problem of increasing heat output and / or extending heating time due to always supplying heat and recovering heat in one direction and ensuring the heating quality for all users in the building, thereby reducing the heat lost on the transmission path and reducing heating energy consumption; in short, the present invention effectively reduces heating energy consumption while ensuring the heating quality of users in the building.

[0038] When the heating system has not reached the timing for switching the flow direction of heating and heat recovery, the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11 are kept in the open and closed state.

[0039] Among them, several of the several heating pipelines 1 are ≥ 1, and the specific number of heating pipelines 1 is determined according to the actual working conditions; the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11 on different heating pipelines 1 can be in the same opening and closing state or in different opening and closing states. The heat source is specifically a device that can generate a heating medium; the heating medium can specifically be a medium that can store and transfer heat, such as liquid water, steam or thermal oil. The radiator 15 is located at the user on each floor, and the heat carried by the heating medium is released to the user through the radiator 15. The first end of the heating pipeline 1 and the second end of the heating pipeline 1 can be set from the high floor of the building to the low floor of the building. At this time, the first valve 8 and the third valve 10 are opened, and the heating system is in the upper supply and lower return mode, that is, the heating medium enters from the top of the building and flows out from the bottom of the building; or, the first end of the heating pipeline 1 and the second end of the heating pipeline 1 can also be set from the low floor of the building to the high floor of the building. At this time, the first valve 8 and the third valve 10 are opened, and the heating system is in the lower supply and upper return mode, that is, the heating medium enters from the bottom of the building and flows out from the top of the building. High-level users are users on the upper half of the building, and high-level users may include or exclude users on the top floor; low-level users are users on the lower half of the building, and low-level users may include or exclude users on the bottom floor. The high-level user temperature refers to the lowest temperature among high-level users. The low-level user temperature refers to the lowest temperature among low-level users. The input port of the heat source is not only connected to the reheating trunk line 7, but is also connected to a device that can add new heating medium to the heat source.

[0040] Furthermore, when the heating system reaches the timing for switching the heating and heat recovery flow directions: the opening time of the first valve 8 exceeds the set time; or, the temperature difference between the high-rise users and the low-rise users in the building exceeds the set temperature difference; or, the opening time of the first valve 8 exceeds the set time, and one of the high-rise users and the low-rise users is not lower than the set temperature, and the other is lower than the set temperature; or, the opening time of the first valve 8 exceeds the set time, and the temperature of both the high-rise users and the low-rise users is lower than the set temperature, and the temperature difference is greater than the set temperature difference. The set temperature is the temperature required for heating the user. The set time is the time required for the high-rise users or the low-rise users to reach the set temperature. When the temperature difference between the high-rise users and the low-rise users reaches the set temperature difference, the temperature of one of the high-rise users and the low-rise users is not lower than the set temperature, and the temperature of the other is lower than the set temperature.

[0041] By controlling the switching time of heating and heat recovery flow, the heating system can not only directly transfer heat to floors that have not reached the heating temperature, thereby improving the heating efficiency, but also effectively solve the problem of excessive temperature difference between high-rise users and low-rise users, making the heating quality of all users in the building more balanced and able to reach the required heating temperature, improving the user experience; it also prevents excessive heat loss during long-distance transmission, reduces the heat lost on the transmission path, reduces unnecessary heat output and cycle time, and reduces the heating energy consumption of the heating system.

[0042] The switching of the heat supply and heat recovery flow directions of the heating system in the present invention is specifically described as follows:

[0043] When the heating system's heat supply and heat recovery flow directions are switched by the timing method, the delivery pump is turned on after the heating system is in the heating state;

[0044] Subsequently, the first valve 8 and the third valve 10 are opened, and the second valve 9 and the fourth valve 11 are kept closed. When the opening time of the first valve 8 and the third valve 10 does not exceed the set time, the opening and closing states of the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11 are maintained; when the opening time of the first valve 8 and the third valve 10 exceeds the set time, the first valve 8 and the third valve 10 are closed, and the second valve 9 and the fourth valve 11 are opened;

[0045] Alternatively, open the second valve 9 and the fourth valve 11, keep the first valve 8 and the third valve 10 closed, and when the opening time of the second valve 9 and the fourth valve 11 does not exceed the set time, keep the opening and closing states of the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11; when the opening time of the second valve 9 and the fourth valve 11 exceeds the set time, close the second valve 9 and the fourth valve 11, and open the first valve 8 and the third valve 10.

[0046] Among them, when the first valve 8 and the third valve 10 are opened, the heating medium flows in from the top and flows out from the bottom, that is, the upper supply and lower return, and the set time is the time for the high-rise users to reach the required temperature for heating; when the first valve 8 and the third valve 10 are opened, the heating medium flows in from the bottom and flows out from the top, that is, the lower supply and upper return, and the set time is the time for the low-rise users to reach the required temperature for heating.

[0047] When switching the heating supply and heat recovery flow directions of the heating system is performed by the temperature difference method, after the heating system is in the heating state, the delivery pump is turned on;

[0048] Open the first valve 8 and the third valve 10, keep the second valve 9 and the fourth valve 11 closed, when the temperature difference between the high-rise users and the low-rise users does not exceed the set temperature difference, keep the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11 open and closed; when the temperature difference between the high-rise users and the low-rise users exceeds the set temperature difference, close the first valve 8 and the third valve 10, and open the second valve 9 and the fourth valve 11;

[0049] Alternatively, the second valve 9 and the fourth valve 11 are opened, and the first valve 8 and the third valve 10 are kept closed. When the temperature difference between the high-rise users and the low-rise users does not exceed the set temperature difference, the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11 are kept open and closed; when the temperature difference between the high-rise users and the low-rise users exceeds the set temperature difference, the second valve 9 and the fourth valve 11 are closed, and the first valve 8 and the third valve 10 are opened;

[0050] When the temperature difference between high-level users and low-level users exceeds the set temperature difference, this means that the temperature of one of the high-level users and the low-level users is not lower than the temperature required for heating, and the temperature of the other is lower than the temperature required for heating, and the heating and heat recovery flow directions need to be switched.

[0051] When switching the heating and heat recovery flow directions of the heating system is performed by the room temperature time method, after the heating system is in the heating state, the delivery pump is turned on;

[0052] Then, first open the first valve 8 and the third valve 10, and keep the second valve 9 and the fourth valve 11 closed;

[0053] When the opening time of the first valve 8 and the third valve 10 is less than the set time, the opening and closing states of the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11 are maintained;

[0054] When the opening time of the first valve 8 and the third valve 10 exceeds the set temperature, but the temperature of the high-rise users and the low-rise users, i.e., all users in the building, reaches the set temperature, the first valve 8, the second valve 9, the third valve 10, and the fourth valve 11 are kept open and closed;

[0055] When the opening time of the first valve 8 and the third valve 10 exceeds the set time, and the temperature of the upper user is lower than the set temperature, the temperature of the lower user is lower than the set temperature, and the temperature difference between the upper user temperature and the lower user temperature is less than the set temperature difference, the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11 are kept open and closed;

[0056] When the opening time of the first valve 8 and the third valve 10 exceeds the set time, and the temperature of the upper user is lower than the set temperature, and the temperature of the lower user reaches the set temperature, the first valve 8 and the third valve 10 are closed, and the second valve 9 and the fourth valve 11 are opened;

[0057] When the opening time of the first valve 8 and the third valve 10 exceeds the set time, the temperature of the upper user is higher than the set temperature, and the temperature of the lower user is lower than the set temperature, the first valve 8 and the third valve 10 are closed, and the second valve 9 and the fourth valve 11 are opened;

[0058] When the opening time of the first valve 8 and the third valve 10 exceeds the set time, the high-level user temperature and the low-level user temperature are both lower than the set temperature, and the difference between the high-level user temperature and the low-level user temperature is greater than the set difference, the first valve 8 and the third valve 10 are closed, and the second valve 9 and the fourth valve 11 are opened.

[0059] Alternatively, first open the second valve 9 and the fourth valve 11, and keep the first valve 8 and the third valve 10 closed;

[0060] When the opening time of the second valve 9 and the fourth valve 11 is less than the set time, the opening and closing states of the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11 are maintained;

[0061] When the opening time of the second valve 9 and the fourth valve 11 exceeds the set temperature, but the temperature of the high-rise users and the low-rise users, i.e., all users in the building, reaches the set temperature, the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11 are kept open and closed;

[0062] When the opening time of the second valve 9 and the fourth valve 11 exceeds the set time, and the temperature of the upper user is lower than the set temperature, the temperature of the lower user is lower than the set temperature, and the temperature difference between the upper user temperature and the lower user temperature is less than the set temperature difference, the first valve 8, the second valve 9, the third valve 10 and the fourth valve 11 are kept open and closed;

[0063] When the opening time of the second valve 9 and the fourth valve 11 exceeds the set time, and the temperature of the upper users is lower than the set temperature, and the temperature of the lower users reaches the set temperature, the second valve 9 and the fourth valve 11 are closed, and the first valve 8 and the third valve 10 are opened;

[0064] When the opening time of the second valve 9 and the fourth valve 11 exceeds the set time, the temperature of the upper user is higher than the set temperature, and the temperature of the lower user is lower than the set temperature, the second valve 9 and the fourth valve 11 are closed, and the first valve 8 and the third valve 10 are opened;

[0065] When the opening time of the second valve 9 and the fourth valve 11 exceeds the set time, the high-level user temperature and the low-level user temperature are both lower than the set temperature, and the difference between the high-level user temperature and the low-level user temperature is greater than the set difference, the second valve 9 and the fourth valve 11 are closed, and the first valve 8 and the third valve 10 are opened.

[0066] The specific method to be used is the temperature difference method, the timing method, or the room temperature time method, depending on the working conditions.

[0067] like Figure 1 As shown, in the present invention, a plurality of heat accumulators 16 are provided on the heating pipeline 1, and a heat accumulator 16 is provided on each floor of the building. The heat accumulator 16 can absorb part of the heat in the heating pipeline 1 and release it to the user, thereby improving the continuity of the user's temperature being maintained at a temperature not lower than that required for heating and reducing the heating energy consumption. The heat accumulator 16 is specifically a structure that can store and release heat, such as a steam container. The heat accumulator 16 can absorb part of the heat of the heating medium in the heating pipeline 1 and release the heat to the user.

[0068] like Figure 1 As shown, the radiator 15 includes a first interface, a second interface, a third interface and a fourth interface, which are all connected to the heating pipeline 1 and interconnected. The first interface, the second interface, the third interface and the fourth interface are arranged in sequence from the first end of the heating pipeline to the second end of the heating pipeline. A heat accumulator 16 is arranged between the second interface and the third interface, and the heat accumulator 16 is respectively connected to the second interface and the third interface; in the low-rise area of ​​the heating pipeline 1, a first one-way valve 12 is arranged between the second interface and the heat accumulator 16, and the first one-way valve 12 is used to prevent the heating medium from continuing to flow toward the low-rise area, and the temperature of the heating medium flowing from the high-rise area to the low-rise area is not higher than the temperature of the low-rise users; in the high-rise area of ​​the heating pipeline 1, a second one-way valve 13 is arranged between the second interface and the heat accumulator 16, and the second one-way valve 13 is used to prevent the heating medium from continuing to flow toward the high-rise area, and the temperature of the heating medium flowing from the low-rise area to the high-rise area is not higher than the temperature of the high-rise users.

[0069] This ensures that the heating medium for upper supply and lower return or lower supply and upper return will not flow through the heat accumulator 16 after reaching a lower temperature, but will flow out from the radiator 15, so that the heat stored in the heat accumulator 16 can provide heating for users, avoiding the problem of lower temperature heating medium flowing through the heat accumulator 16, taking away the heat stored in the heat accumulator 16, and increasing heating energy consumption.

[0070] The heating system also includes a plurality of temperature sensors 14. Each user on each floor is connected to a temperature sensor 14. The temperature of the users on each floor is detected by the temperature sensor 14, and the temperature of the users on the upper floors and the users on the lower floors is fed back. In addition to the temperature sensor 14, a differential pressure sensor, a flow sensor or an infrared thermal imaging device can also be used to detect the temperature of the users on each floor.

[0071] The switching of the heating and reheating flow directions of the heating system can be realized manually by the operator, or can be realized automatically by the controller 17. When the automatic switching of the heating and reheating flow directions of the heating system is realized, the heating system further includes the controller 17, the first valve 8, the second valve 9, the third valve 10, the fourth valve 11, and the temperature sensor 14 are all connected to the controller 17 by signal; when the heating system is in the heating state, the controller 17 starts the delivery pump; the heating system opens the first valve 8 and the third valve 10, closes the second valve 9 and the fourth valve 11, and when the heating system reaches the timing of switching the heating and reheating flow directions, the controller 17 opens the second valve 9 and the fourth valve 11, and closes the first valve 8 and the third valve 10; or, the heating system opens the second valve 9 and the fourth valve 11, closes the first valve 8 and the third valve 10, and when the heating system reaches the timing of switching the heating and reheating flow directions, the controller 17 opens the first valve 8 and the third valve 10, and closes the second valve 9 and the fourth valve 11.

[0072] The first valve 8 , the second valve 9 , the third valve 10 and the fourth valve 11 may specifically be electric regulating valves.

[0073] In this article, "and / or" refers to the text content before and / or, and the text content after and / or can exist at the same time or separately. For example, "A and / or B" includes the situation where only A or B exists, and the situation where both A and B exist at the same time. The usage of "and / or" is the same as that of "and / or", so we will not repeat it here.

[0074] The present invention discloses multiple technical solutions, but does not provide any contrary technical inspiration.

[0075] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0077] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0078] In the present disclosure, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0080] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0081] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A heating system for improving thermal imbalance in a building, characterized in that: The heating system comprises: A plurality of heating pipelines, wherein the heating pipelines are arranged from the high floors of the building to the low floors of the building, and a plurality of radiators are connected in series on the heating pipelines, and each user in the building is provided with the radiator; The first end of the heating pipeline is respectively connected to a first heating branch and a second return-warming branch, a first valve is provided between the first heating branch and the first end of the heating pipeline, and a fourth valve is provided between the second return-warming branch and the first end of the heating pipeline; The second end of the heating pipeline is respectively connected to the second heating branch and the first return-warming branch, a second valve is provided between the second heating branch and the second end of the heating pipeline, and a third valve is provided between the first return-warming branch and the second end of the heating pipeline; A heat source, wherein the output port of the heat source is connected to the first heating branch and the second heating branch through a heating trunk line, and the input port of the heat source is connected to the first heating branch and the second heating branch through a heating trunk line, and a delivery pump is provided at the output port; When the heating system is in a heating state: turning on the delivery pump; The first valve and the third valve are opened, and the second valve and the fourth valve are kept closed. When the heating system reaches the timing of switching between heating supply and heat recovery flow, the second valve and the fourth valve are opened, and the first valve and the third valve are closed; Alternatively, the second valve and the fourth valve are opened, and the first valve and the third valve are kept closed; when the heating system reaches the timing for switching the heating and heat recovery flow directions, the first valve and the third valve are opened, and the second valve and the fourth valve are closed.

2. The heating system according to claim 1, characterized in that: When the heating system reaches the time of switching between heating supply and heat recovery flow: the opening time of the first valve exceeds the set time; Or, the temperature difference between the users on the upper floors and the users on the lower floors of the building exceeds the set temperature difference; Alternatively, the opening time of the first valve exceeds the set time, and one of the high-level users and the low-level users is not lower than the set temperature, and the other is lower than the set temperature; Alternatively, the opening time of the first valve exceeds the set time, and the temperatures of the high-level users and the low-level users are both lower than the set temperature, and the temperature difference is greater than the set temperature difference.

3. The heating system according to claim 1, characterized in that: A plurality of heat accumulators are arranged on the heating pipeline, and each floor of the building is provided with the heat accumulators.

4. The heating system according to claim 3, characterized in that: The radiator comprises a first interface, a second interface, a third interface and a fourth interface which are all connected to the heating pipeline and are interconnected, the first interface, the second interface, the third interface and the fourth interface are arranged in sequence from the first end of the heating pipeline to the second end of the heating pipeline, the heat accumulator is arranged between the second interface and the third interface, and the heat accumulator is respectively connected to the second interface and the third interface; In the lower area of ​​the heating pipeline, a first one-way valve is provided between the second interface and the heat accumulator, and the first one-way valve is used to prevent the heating medium from continuing to flow toward the lower area, and the temperature of the heating medium flowing from the high area into the lower area is not higher than the temperature of the lower users; In the high-rise area of ​​the heating pipeline, a second one-way valve is provided between the second interface and the heat accumulator, and the second one-way valve is used to prevent the heating medium from continuing to flow toward the high-rise area. The temperature of the heating medium flowing from the low-rise area into the high-rise area is not higher than the temperature of the high-rise users.

5. The heating system according to claim 4, characterized in that: The heating system also includes a plurality of temperature sensors, and users on each floor are connected to the temperature sensors.

6. The heating system according to claim 5, characterized in that: The heating system further comprises a controller, and the first valve, the second valve, the third valve, the fourth valve, and the temperature sensor are all connected to the controller by signal; When the heating system is in the heating state, the controller turns on the delivery pump; The heating system opens the first valve and the third valve, and closes the second valve and the fourth valve. When the heating system reaches the timing of switching between heating supply and heat recovery flow, the controller opens the second valve and the fourth valve, and closes the first valve and the third valve. Alternatively, the heating system opens the second valve and the fourth valve, and closes the first valve and the third valve. When the heating system reaches the timing for switching the heating and heat recovery flow directions, the controller opens the first valve and the third valve, and closes the second valve and the fourth valve.

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