Brand-new gradient cascade comfortable radiation five-constant system
By adopting a brand-new gradient superimposed comfort radiant five-constant system, combined with an air source heat pump, a fresh air unit, and floor coil terminals, the problem of condensation in summer of existing five-constant systems has been solved, realizing dual functions of cooling and heating, reducing maintenance and construction difficulty, and improving the system's ease of use and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RICHU DONGFANG SOLAR ENERGY
- Filing Date
- 2024-08-29
- Publication Date
- 2026-05-19
AI Technical Summary
The existing five constant temperature system cannot provide direct cooling in summer. Condensation easily forms at the ends of the capillary radiant plates, leading to damage to pipes and the ground. Maintenance is difficult, costly, and requires high construction standards.
It adopts a brand-new gradient superimposed comfort radiant five-constant system, including an air source heat pump, a fresh air unit and floor coil terminals. Through a hydraulic distribution center and a variable water temperature device, combined with floor heating water supply pump, fan water supply pump, thermostatic valve and temperature control valve, it realizes dual functions of cooling and heating, and is automatically controlled by a micro water meter to avoid condensation.
It achieves constant temperature and humidity control of the ground, avoids the risk of condensation, reduces maintenance difficulty and construction costs, and improves the ease of use and economy of the system.
Smart Images

Figure CN224261814U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a five-constant system, and more particularly to a novel gradient superimposed comfort radiation five-constant system. Background Technology
[0002] Currently, the five-constant systems on the market mainly consist of heat pumps, dual-cold-source or direct-expansion fresh air systems, capillary radiant panel terminals, and automatic control systems. Current underfloor heating systems can only provide heating, not direct cooling. Every summer, the water temperature inside the capillary radiant panel terminals is low, making it prone to condensation on the pipes, causing damage to the pipes and the floor. Once the pipes and floor are damaged, repairing the capillary radiant panel terminals is difficult, time-consuming, costly, and prone to leaks that are difficult to repair, placing extremely high demands on interior design and construction. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a new gradient superimposed comfort radiation five-constant system that is reasonably designed, easy to use, and has both cooling and heating functions, in order to overcome the shortcomings of the existing technology.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A novel gradient superimposed comfort radiant five-constant system, comprising an air source heat pump, a fresh air unit, and a ground coil terminal, characterized in that a hydraulic distribution center for temperature regulation is provided between the air source heat pump and the ground coil terminal.
[0006] The hydraulic distribution center includes a closed outer casing and a variable temperature device installed inside the outer casing. The variable temperature device is fixed inside the outer casing by a support mechanism. The variable temperature device is equipped with a buffer water tank, on which are installed a primary heat pump supply pipe, a primary heat pump return pipe, a floor heating supply pipe, and a floor heating return pipe. A mixing pipe connects the floor heating return pipe and the floor heating supply pipe. One end of the mixing pipe is connected to the floor heating return pipe through a three-way valve, and the other end is connected to the floor heating supply pipe through a thermostatic valve. The primary heat pump supply pipe and the primary heat pump return pipe are connected to the air source heat pump to form water circulation pipe I. The floor heating supply pipe and the floor heating return pipe are connected to the end of the floor heating coil to form water circulation pipe II. A floor heating supply pump for regulating water volume and temperature is installed on the floor heating supply pipe. The thermostatic valve can be a mechanical proportional valve. The floor temperature is regulated by the water pump and the mechanical proportional valve.
[0007] The technical problem to be solved by this utility model can also be achieved through the following technical solution: a water supply pipe is connected to the lower part of the buffer water tank, and a water supply valve with a filter is installed on the water supply pipe.
[0008] The technical problem to be solved by this utility model can also be achieved by the following technical solution: the support mechanism includes a support base at the bottom of the outer box and a positioning sleeve above the support base. The upper surface of the support base is provided with a positioning groove that cooperates with the bottom of the buffer water tank. The positioning sleeve is fitted on the top of the buffer water tank. A diagonal brace is hinged to the support base on the outer periphery of the positioning groove. The diagonal brace is inclined toward the center of the positioning sleeve. The outer edge of the positioning sleeve is provided with a groove that cooperates with the diagonal brace. The support mechanism is easy to assemble and disassemble.
[0009] The technical problem to be solved by this utility model can also be achieved through the following technical solution: at least two diagonal braces are provided and are evenly arranged along the circumference of the positioning sleeve.
[0010] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the buffer water tank is also provided with a fan water supply pipe and a fan return water pipe that are connected to the fresh air unit. The fan water supply pipe and the fan return water pipe form a water circulation pipeline III. A fan water supply pump is installed on the fan water supply pipe.
[0011] The technical problem to be solved by this utility model can also be achieved through the following technical solution: a three-in-one valve integrating a pressure gauge, an exhaust valve, and a safety valve is installed on the top of the buffer water tank.
[0012] The technical problem to be solved by this utility model can also be achieved through the following technical solution: a temperature control valve is installed on the primary side heat pump water supply pipe and the primary side heat pump water return pipe, and a heat pump water supply pump is installed on the primary side heat pump water supply pipe to facilitate water supply to the buffer water tank.
[0013] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the end of the ground coil is divided into zones, and a micro water meter for detecting the humidity of the gas at the end of the ground coil is installed in each zone. The micro water meter is connected to the water pumps of the hydraulic distribution center, such as the floor heating water pump or the fan water pump, thermostatic valve, and temperature control valve, through the controller.
[0014] Compared with existing technologies, this utility model incorporates a hydraulic distribution center with cooling capabilities. It employs temperature regulation technology at the ends of the floor heating coils to prevent condensation in summer. An outer casing houses the variable water temperature device and its components, providing protection and facilitating transportation. The variable water temperature device also increases the floor water supply temperature and processes the air temperature through fresh air intake, further preventing condensation. By incorporating a floor heating water pump, a fan water pump, a thermostatic valve, and a temperature control valve, the water temperature at the hydraulic distribution center is promptly controlled, achieving automatic control of constant temperature and humidity. This novel gradient cascade comfort radiation five-constant system is simple in principle, easy to manufacture, structurally sound, economical, and readily applicable, making it easy to promote. Attached Figure Description
[0015] Figure 1 This is a structural diagram of the novel gradient cascaded comfort radiation five-constant system described in this utility model;
[0016] Figure 2 A structural diagram of a hydraulic distribution center;
[0017] Figure 3 This is a structural diagram of the supporting mechanism.
[0018] In the diagram: 1-Air source heat pump, 2-Hydraulic distribution center, 3-Manifold, 4-Floor coil terminal, 5-Fresh air unit, 6-Outer casing, 7-Buffer water tank, 8-Heat pump supply pipe, 9-Heat pump return pipe, 10-Fresh air unit supply pump, 11-Underfloor heating supply pipe, 12-Fresh air unit supply pipe, 13-Underfloor heating supply pump, 14-Underfloor heating return pipe, 15-Fresh air unit return pipe, 16-Make-up valve, 17-Three-in-one valve, 18-Mixing pipe, 19-Temperature regulating valve, 20-Positioning groove, 21-Diagonal brace, 22-Groove, 23-Positioning sleeve, 24-Support base. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] Reference Figure 1-3 A novel gradient superimposed comfort radiation five constant system, which includes an air source heat pump 1, a fresh air unit 5 and a ground coil terminal 4, with a temperature-regulating hydraulic distribution center 2 located between the air source heat pump 1 and the ground coil terminal 4.
[0022] The hydraulic distribution center 3 is equipped with a closed outer casing 6. A variable water temperature device is installed inside the outer casing 6 and fixed within it by a support mechanism. The variable water temperature device has a buffer tank 7, on which are mounted a primary heat pump supply pipe 8, a primary heat pump return pipe 9, a floor heating supply pipe 12, and a floor heating return pipe 14. The heat pump supply pipe 8 and heat pump return pipe 9 are connected to the air source heat pump 2 to form a water circulation pipe I. The floor heating return pipe 14 and floor heating supply pipe 12 are connected to the end of the floor heating coil 4 to form a water circulation pipe II. A mixing pipe 18 connects the floor heating return pipe 14 and the floor heating supply pipe 12. A floor heating supply pump 13 is installed on the floor heating supply pipe 12. The floor heating supply pump inlets the floor heating... The water supply pipe is equipped with a thermostatic valve 19 connected to the mixing pipe. The thermostatic valve is a three-way thermostatic valve. The thermostatic valve only opens when there is a water temperature difference between the underfloor heating return water pipe 14 and the underfloor heating supply water pipe 12, so that the water temperature at the end of the floor coil is consistent and condensation is avoided due to large temperature difference. Temperature control valves are installed on the primary side heat pump supply water pipe and the primary side heat pump return water pipe. A heat pump supply water pump is installed on the primary side heat pump supply water pipe. A water supply pipe is connected to the lower part of the buffer water tank 7. A water supply valve 16 with a filter is installed on the water supply pipe. A three-in-one valve 17 integrating a pressure gauge, an air vent valve, and a safety valve is installed on the top of the buffer water tank 7. The underfloor heating return water pipe and the underfloor heating supply water pipe are respectively connected to the end of the floor coil 4 through a manifold 3.
[0023] The buffer water tank 7 is also equipped with a fan water supply pipe 11 and a fan return water pipe 15 that are connected to the fresh air unit. A fan water supply pump 10 is installed on the fan water supply pipe 11.
[0024] The support mechanism includes a support base 24 at the bottom of the outer casing and a positioning sleeve 23 above the support base 24. The size and shape of the support base 24 match the interior of the outer casing to prevent shaking. The upper surface of the support base 24 is provided with a positioning groove 20 that mates with the bottom of the buffer water tank. The positioning sleeve 23 is fitted onto the top of the buffer water tank 7. A diagonal brace 21 is hinged to the support base on the outer periphery of the positioning groove 20. The diagonal brace 21 is inclined toward the center of the positioning sleeve 23. The outer edge of the positioning sleeve 23 is provided with a groove 22 that mates with the diagonal brace 21. The top of the diagonal brace rests in the groove to support the positioning sleeve. There are at least two diagonal braces 21, preferably three, which are evenly distributed around the circumference of the positioning sleeve 23 for easy assembly and disassembly.
[0025] The ground coil ends are divided into zones, and each zone is equipped with a micro-water meter for detecting the humidity of the gas at the end of the ground coil. The micro-water meter is connected to the floor heating water supply pump or fan water supply pump, heat pump water supply pump, temperature control valve, and thermostatic valve in the water distribution center through a controller.
[0026] The novel gradient superimposed comfort radiation five-constant system described in this utility model uses a hydraulic distribution center and temperature regulation technology at the end of the ground coil. During summer cooling, the hydraulic distribution center increases the water supply temperature for ground cooling, keeping the ground temperature between 23℃ and 25℃, increasing the comfort of summer cooling and reducing the risk of condensation. If windows are opened, hot and humid air enters the room. A micro-water meter with dew point tracking function, controlled by zones, will immediately cut off the water supply to prevent condensation on the ground. This type of terminal also reduces construction difficulty and cost.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A novel gradient cascade comfort radiant five-constant system, comprising an air source heat pump, a fresh air unit, and floor coil terminals, characterized in that, A hydraulic distribution center for temperature regulation is provided between the air source heat pump and the end of the ground coil. The hydraulic distribution center includes a closed outer casing and a variable temperature device installed inside the outer casing. The variable temperature device is fixed inside the outer casing by a support mechanism. The variable temperature device is equipped with a buffer water tank, on which are installed a primary heat pump supply pipe, a primary heat pump return pipe, a floor heating supply pipe, and a floor heating return pipe. A mixing pipe connects the floor heating return pipe and the floor heating supply pipe. One end of the mixing pipe is connected to the floor heating return pipe through a three-way valve, and the other end of the mixing pipe is connected to the floor heating supply pipe through a thermostatic valve. The primary heat pump supply pipe and the primary heat pump return pipe are connected to the air source heat pump to form water circulation pipe I. The floor heating supply pipe and the floor heating return pipe are connected to the end of the floor heating coil to form water circulation pipe II. A floor heating supply pump for regulating water volume and water temperature is installed on the floor heating supply pipe.
2. The novel gradient cascaded comfort radiation five-constant system according to claim 1, characterized in that, A water supply pipe is connected to the lower part of the buffer water tank, and a water supply valve with a filter is installed on the water supply pipe.
3. A novel gradient cascaded comfort radiation five-constant system according to claim 1, characterized in that, The support mechanism includes a support base located at the bottom of the outer casing and a positioning sleeve located above the support base. The upper surface of the support base is provided with a positioning groove that mates with the bottom of the buffer water tank. The positioning sleeve is fitted onto the top of the buffer water tank. A diagonal brace is hinged to the support base on the outer periphery of the positioning groove. The diagonal brace is inclined toward the center of the positioning sleeve. The outer edge of the positioning sleeve is provided with a groove that mates with the diagonal brace.
4. A novel gradient cascaded comfort radiation five-constant system according to claim 3, characterized in that, The diagonal bracing rods are provided in at least two lengths and are evenly distributed along the circumference of the positioning sleeve.
5. A novel gradient cascaded comfort radiation five-constant system according to claim 1, characterized in that, The buffer water tank is also equipped with a fan water supply pipe and a fan return water pipe that are connected to the fresh air unit. The fan water supply pipe and the fan return water pipe form a water circulation pipeline III. A fan water supply pump is installed on the fan water supply pipe.
6. A novel gradient cascaded comfort radiation five-constant system according to claim 1, characterized in that, A three-in-one valve integrating a pressure gauge, an air vent valve, and a safety valve is installed on the top of the buffer tank.
7. A novel gradient cascaded comfort radiation five-constant system according to claim 1, characterized in that, Temperature control valves are installed on the primary heat pump water supply pipe and the primary heat pump water return pipe, and a heat pump water supply pump is installed on the primary heat pump water supply pipe.
8. A novel gradient cascaded comfort radiation five-constant system according to claim 7, characterized in that, The ground heating coil ends are divided into zones, and each zone is equipped with a micro-water meter for detecting the humidity of the gas at the end of the ground heating coil. The micro-water meter is connected to the floor heating water supply pump, thermostatic valve, heat pump water supply pump, and temperature control valve in the water distribution center via a controller.