A heating regulation system

Abstract

This utility model discloses a heating regulation system, including a primary water supply side and a secondary water supply side. A heat exchanger is installed between the primary and secondary water supply sides, and both sides are connected to the heat exchanger. A user side is located between the port of the secondary water supply side and the heat exchanger. A mixing device is installed at the inlet of the user side, which can regulate the pressure on the user side. This heating regulation system installs a mixing device at the front of the building, which increases the temperature difference between the supply and return water on the secondary side, improving heat exchange efficiency. It also lowers the system return water temperature, reducing heat loss from the pipe network. Furthermore, the mixing device can directly regulate the pressure on the user side, preventing overheating for nearby users and undercooling for distant users. This reduces the secondary network circulation flow, enabling automatic frequency conversion regulation and reducing pump energy consumption and operating costs. The heat exchanger optimizes heat transfer efficiency, reducing heat loss. The independent connection design of the two networks ensures that the pressures of the primary and secondary networks do not interfere with each other.

Description

Technical Field

[0001] This utility model belongs to the field of heating technology, and in particular relates to a heating regulation system. Background Technology

[0002] In traditional secondary heating systems, hydraulic balance is often achieved by adjusting the opening of pipe valves. However, this method can easily lead to overheating for nearby users and undercooling for distant users. Especially in extremely cold weather, when the heat demand of users increases while the temperature difference between the system's supply and return water remains constant, the required flow rate on the user side increases accordingly. This leads to faster water flow velocity in the pipes, increased frictional resistance, and a significant increase in energy consumption for transmission and distribution, further exacerbating the hydraulic imbalance problem in the network. This not only significantly reduces the heating effect, causing residents in some areas to experience noticeable temperature differences and affecting the overall heating experience, but also directly relates to people's livelihoods. Especially during the cold season, the stability and efficiency of the heating system are crucial to residents' quality of life.

[0003] Therefore, there is an urgent need to design a heating regulation system to solve the problems mentioned above. Utility Model Content

[0004] To address the technical problem mentioned in the background art, which exacerbates hydraulic imbalance in the pipeline network and increases energy consumption in transmission and distribution under extremely cold weather, a heating regulation system is provided.

[0005] To achieve the above objectives, the specific technical solution of the heating regulation system of this utility model is as follows: A heating regulation system includes a primary water supply side and a secondary water supply side, with a heat exchanger installed between the primary and secondary water supply sides and both connected to the heat exchanger. A user side is installed between the port of the secondary water supply side and the heat exchanger, and a mixing device is installed at the inlet end of the user side, which can adjust the pressure on the user side.

[0006] Furthermore, the secondary water supply side includes the secondary water supply pipeline and the secondary water return pipeline. The heat medium enters the user side through the secondary water supply pipeline and is output through the secondary water return pipeline.

[0007] Furthermore, a circulation pump is installed near the heat exchanger on the secondary network return water pipe to drive the secondary network water flow circulation.

[0008] Furthermore, the secondary water supply side also includes a makeup water pump, which is connected to the secondary water return pipeline to maintain pressure stability on the secondary water supply side.

[0009] Furthermore, the user side includes user water supply pipes and user return water pipes. The user water supply pipes are connected to the secondary water supply pipes, and the user return water pipes are connected to the secondary return water pipes.

[0010] Furthermore, the mixing device includes a mixing pump, which is installed on the user's water supply pipeline to regulate the pressure on the user side.

[0011] Furthermore, the mixing device also includes an ultrasonic heat meter, which is installed in the user's water supply pipe and located between the user port and the mixing pump.

[0012] Furthermore, the user side also includes a balancing pipe, which is connected to the user's water supply pipe and the user's return water pipe respectively. The balancing pipe is equipped with an intelligent balancing valve, which is used to adjust the return water flow and control the water supply temperature on the user side.

[0013] Furthermore, the primary water supply side includes a primary water supply pipeline and a primary water return pipeline. The primary water supply pipeline is connected in sequence to the heat exchanger and the secondary water supply pipeline, and the secondary water return pipeline is connected in sequence to the heat exchanger and the secondary water return pipeline.

[0014] Furthermore, at least two user sides are provided, and at least two user sides are connected in parallel to the secondary water supply side.

[0015] The heating regulation system of this utility model has the following advantages: A mixing device is installed in front of the building to increase the temperature difference between the supply and return water on the secondary side, thereby improving heat exchange efficiency. Simultaneously, it lowers the system return water temperature, reducing heat loss from the pipe network. Furthermore, the mixing device can directly regulate the user-side pressure, preventing overheating for nearby users and excessive cooling for distant users. This reduces the secondary network circulation flow, enabling automatic frequency conversion regulation and lowering pump energy consumption and operating costs. The heat exchanger optimizes heat transfer efficiency, reducing heat loss. The independent connection design between the two networks ensures that the pressures of the primary network and the secondary network do not interfere with each other. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the heating regulation system of this utility model.

[0017] Explanation of markings in the diagram: 1. Water supply side of the main water network; 11. Water supply pipeline of the main water network; 12. Water return pipeline of the main water network; 2. Secondary water supply side; 21. Secondary water supply pipeline; 22. Secondary return pipeline; 3. Heat exchanger; 4. User side; 41. User water supply pipe; 42. User return water pipe; 43. Balancing pipe; 5. Mixing device; 51. Mixing pump; 52. Ultrasonic heat exchanger; 6. Circulating pump; 7. Water supply pump. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0020] The following is a reference to the appendix. Figure 1 This invention describes the heating regulation system.

[0021] This embodiment provides a heating regulation system. Figure 1 This is a schematic diagram of the heating regulation system structure in this embodiment, as shown below. Figure 1 As shown, the heating regulation system includes a primary water supply side 1 and a secondary water supply side 2. A heat exchanger 3 is installed between the primary water supply side 1 and the secondary water supply side 2, and both the primary water supply side 1 and the secondary water supply side 2 are connected to the heat exchanger 3. A user side 4 is installed between the port of the secondary water supply side 2 and the heat exchanger 3. A mixing device 5 is installed at the inlet end of the user side 4, and the mixing device 5 can adjust the pressure of the user side 4.

[0022] The heating regulation system has a mixing device 5 installed in front of the building. By increasing the temperature difference between the supply and return water on the secondary side, it improves the heat exchange efficiency and reduces the system return water temperature, thus reducing heat loss from the pipe network. In addition, the mixing device 5 can directly regulate the pressure on the user side 4, avoiding overheating for nearby users and overcooling for distant users. This reduces the circulation flow of the secondary network, enables automatic frequency conversion regulation, and reduces pump energy consumption and operating costs. The heat exchanger 3 optimizes the heat transfer efficiency and reduces heat loss. The independent connection design of the two networks ensures that the pressure of the primary network and the secondary network does not interfere with each other.

[0023] Understandably, the appropriate type of heat exchanger can be selected based on actual conditions. Specifically, existing heat exchangers include plate heat exchangers and tube heat exchangers. Plate heat exchangers transfer heat through plates and consist of a set of parallel rectangular thin metal plates clamped together on a support. Gaskets are placed along the edges of adjacent plates, forming a sealed fluid channel between them after compression. The size of the channel can be adjusted by adjusting the thickness of the gaskets. Each plate has a circular hole at each of its four corners; two of these holes communicate with the flow channels on the plate surface, while the other two are not connected. Their positions are staggered on adjacent plates to form separate channels for the two fluids. Cold and hot fluids flow alternately on both sides of the plates, exchanging heat through the metal plates. It should be noted that the plates are the core component of the plate heat exchanger. To ensure that the fluid flows evenly across the plate surface, increase the heat transfer area, and promote fluid turbulence, the plate surface is often stamped into a corrugated shape with concave and convex surfaces. There are dozens of corrugation shapes, with commonly used corrugation shapes including horizontal corrugations, herringbone corrugations, and arc corrugations. The advantages of plate heat exchangers are their compact structure and large heat transfer area per unit volume; flexible assembly, allowing for adjustment of the heat transfer area by adding or removing plates as needed; complex cross-sectional changes due to the corrugated plate surface, enhancing fluid turbulence and resulting in high heat transfer efficiency; and ease of disassembly and assembly, facilitating maintenance and cleaning. Therefore, a plate heat exchanger is used in this embodiment.

[0024] A tubular heat exchanger comprises a shell, a tube bundle, and tube boxes at both ends. The shell contains several parallel tubes, through which fluid flows and exchanges heat via the tube walls. The tube bundle can be arranged in a single-pass or multi-pass configuration to increase the heat transfer area and improve heat exchange efficiency. The advantages of tubular heat exchangers include simple structure, strong adaptability, and large processing capacity, making them suitable for high-temperature and high-pressure conditions. Therefore, in some embodiments, the aforementioned plate heat exchanger can be replaced with a tube-to-tube heat exchanger; no specific limitation is made here.

[0025] Furthermore, the secondary water supply side 2 includes a secondary water supply pipeline 21 and a secondary water return pipeline 22. The heat medium enters the user side 4 through the secondary water supply pipeline 21 and is output through the secondary water return pipeline 22. The secondary water supply and return pipelines are designed separately to facilitate flow monitoring and independent adjustment.

[0026] During use, the heating medium enters from the second water supply pipe 21 and goes directly to the user side 4. After the heating is finished, it is output through the second return water pipe 22.

[0027] Furthermore, a circulation pump 6 is installed on the secondary network return water pipe 22 near the heat exchanger 3 to drive the circulation of water in the secondary network. This circulation of water in the secondary network addresses the problem of increased pipe resistance caused by increased flow demand in extremely cold weather, thereby reducing energy consumption in transmission and distribution.

[0028] Furthermore, the secondary water supply side 2 also includes a makeup water pump 7, which is connected to the secondary water return pipe 22 to maintain stable pressure on the secondary water supply side. Maintaining stable pressure in the secondary network prevents system pressure imbalance caused by flow fluctuations on the user side 4, reducing the risk of pipe bursts.

[0029] Furthermore, the user side 4 includes a user water supply pipe 41 and a user return water pipe 42. The user water supply pipe 41 is connected to the secondary water supply pipe 21, and the user return water pipe 42 is connected to the secondary water return pipe 22. Specifically, the mixing device 5 includes a mixing pump 51, which is installed on the user water supply pipe 41 and is used to regulate the pressure on the user side 4. Dynamically regulating the water supply pressure on the user side 4 enables on-demand heat distribution and improves user comfort.

[0030] Furthermore, the mixing device 5 also includes an ultrasonic heat meter 52, which is installed in the user's water supply pipe 41 and located between the user port and the mixing pump 51. This accurately measures the user's heat consumption, providing data support for billing and system adjustment.

[0031] Furthermore, the user side 4 also includes a balancing pipe 43, which is connected to the user water supply pipe 41 and the user return water pipe 42 respectively. The balancing pipe 43 is equipped with an intelligent balancing valve to regulate the return water flow and control the supply water temperature of the user side 4. By regulating the return water flow and supply water temperature through the balancing pipe 43, hydraulic imbalance is further eliminated, which is especially suitable for multi-user parallel scenarios.

[0032] Furthermore, the primary water supply side 1 includes a primary water supply pipe 11 and a primary water return pipe 12. The primary water supply pipe 11 is sequentially connected to the heat exchanger 3 and the secondary water supply pipe 21, and the secondary water return pipe 22 is sequentially connected to the heat exchanger 3 and the secondary water return pipe 22. The primary and secondary water supply pipes are efficiently isolated by the heat exchanger 3, preventing the high temperature and high pressure of the primary network from directly impacting the secondary network and extending the equipment life. The series design of the heat exchangers 3 simplifies the pipeline layout and reduces installation and maintenance costs.

[0033] It is understood that the aforementioned pipes (including) can be aluminum-plastic composite pipes, copper-aluminum-plastic composite pipes, and thin-walled stainless steel pipes. The unique advantage of aluminum-plastic composite pipes is their ability to block gas penetration. When applied to closed-loop hot water systems, they can prevent oxygen infiltration and avoid oxidation and corrosion in the system. Copper pipes can withstand extremely cold and hot temperatures, are safe and reliable, and are harder, more shock-resistant, pressure-resistant, and freeze-resistant than plastic pipes. They also contain no modifiers or added chemicals, and due to the presence of copper ions, they can provide antifouling and sterilization effects. Thin-walled stainless steel pipes are characterized by high strength, strong corrosion resistance, good toughness, excellent vibration and shock resistance, and do not become brittle at low temperatures. They are safe and hygienic, ensuring the purity of the water during water transmission. Therefore, in practical applications, appropriate pipes can be selected according to the actual situation. For example, copper pipes can be used near the user side to assist in sterilization and improve the cleanliness of the water supply. For heating systems with hot water pipes laid on the ground, aluminum-plastic composite pipes can be used to prevent hot water leakage and gas infiltration. Therefore, this embodiment does not make specific limitations.

[0034] High-temperature water from the heat source flows through the primary water supply pipeline 11 to the regional heat exchange station (wherein, heat exchanger 3 is installed inside the heat exchange station). Low-temperature water from the user side 4 is collected through the user return water pipeline 42 into the secondary return water pipeline 22, and flows to the regional heat exchange station. The high-temperature water from the heat source and the low-temperature water from the user exchanger exchange heat at the heat exchanger 3. After heat exchange, the high-temperature water flows out through the primary return water pipeline 12, and the heated low-temperature water is supplied to the user end through the secondary water supply pipeline 21. The heated low-temperature water flows from the secondary water supply pipeline 21 to the user water supply pipeline 41, mixes with the low-temperature water from the user return water pipeline 42, and is pressurized by the mixing pump 51 in front of each building to supply heat to the user side 4.

[0035] After the low-temperature water from the secondary water supply pipe 22 is heated, it flows from the secondary water supply pipe 21 into the user water supply pipe 41. Therefore, the water flowing from the secondary water supply pipe 21 into the user water supply pipe 41 has a higher temperature, while the water from the user return pipe 42 has a lower temperature. After the water from the secondary water supply pipe 21 and the water from the user return pipe 42 are mixed, they are pressurized by the mixing pump 51 and flow into the user side 4 through the user water supply pipe 41 for heating. The low-temperature water after heating is collected in the secondary water supply pipe 22 through the user return pipe 42.

[0036] Furthermore, at least two user-side units 4 are provided, and at least two user-side units 4 are connected in parallel to the secondary water supply unit 2. Multiple user-side units 4 can operate in parallel, and each user branch can be independently adjusted through a mixing device 5 and an intelligent balancing valve to meet the heating needs of large communities or commercial areas. The system has strong scalability and requires no additional modifications to the main pipeline network.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A heating regulation system, characterized in that, It includes a primary water supply side and a secondary water supply side. A heat exchanger is installed between the primary and secondary water supply sides, and both the primary and secondary water supply sides are connected to the heat exchanger. A user side is installed between the port of the secondary water supply side and the heat exchanger. A mixing device is installed at the inlet end of the user side, which can adjust the pressure on the user side.

2. The heating conditioning system of claim 1, wherein, The secondary water supply side includes the secondary water supply pipeline and the secondary water return pipeline. The heat medium enters the user side through the secondary water supply pipeline and is output through the secondary water return pipeline.

3. The heating regulation system according to claim 2, characterized in that, A circulation pump is installed near the heat exchanger on the secondary network return water pipe to drive the secondary network water flow circulation.

4. The heating conditioning system of claim 2, wherein, The secondary water supply side also includes a makeup water pump, which is connected to the secondary water return pipeline to maintain pressure stability on the secondary water supply side.

5. The heating conditioning system of claim 2, wherein, The user side includes user water supply pipes and user return water pipes. The user water supply pipes are connected to the secondary water supply pipes, and the user return water pipes are connected to the secondary return water pipes.

6. The heating conditioning system of claim 5, wherein, The mixing device includes a mixing pump, which is installed on the user's water supply pipeline to regulate the pressure on the user's side.

7. The heating conditioning system of claim 6, wherein, The mixing device also includes an ultrasonic heat meter, which is installed in the user's water supply pipe and located between the user port and the mixing pump.

8. The heating regulation system of claim 5, wherein, The user side also includes a balancing pipe, which connects to the user's water supply pipe and the user's return water pipe. The balancing pipe is equipped with an intelligent balancing valve, which is used to regulate the return water flow and control the water supply temperature on the user side.

9. The heating conditioning system of claim 2, wherein, The primary water supply network includes a primary water supply pipeline and a primary water return pipeline. The primary water supply pipeline is connected to the heat exchanger and the secondary water supply pipeline in sequence, and the secondary water return pipeline is connected to the heat exchanger and the secondary water return pipeline in sequence.

10. The heating regulation system according to any one of claims 1-9, characterized in that, There are at least two user-side facilities, and at least two user-side facilities are connected in parallel to the secondary water supply network.

Images