Water mixing center for radiation air conditioning system

Abstract

The utility model relates to the technical field of radiation air-conditioning systems, in particular to a water mixing center for a radiation air-conditioning system, which comprises a main body mechanism for mixing water and adjusting temperature of the system, and an acquisition mechanism for detecting water supply temperature in real time is arranged on the main body mechanism. The main body mechanism comprises a variable-frequency circulating booster pump and an electric three-way water mixing valve, and a main machine water supply pipe section is detachably mounted at a first inlet of the electric three-way water mixing valve. By arranging the main body mechanism, the device can reasonably mix water and regulate the temperature of a radiation air-conditioning system, and the purpose of mixing water and regulating the temperature is achieved by controlling the reasonable mixing proportion of inlet water and return water, so that the floor is not dewed during floor radiation cooling in summer, the floor is protected from cracking during floor radiation heating in winter, and meanwhile, the service life of the floor is prolonged. And the water supply temperature can be adjusted according to the change of the indoor load, so that the required set temperature is reached, and the effects of energy conservation and comfort are really achieved.

Description

Technical Field

[0001] This utility model relates to the field of radiant air conditioning system technology, specifically a mixing center for radiant air conditioning systems. Background Technology

[0002] In radiant air conditioning cooling systems, the supply water temperature needs to be adjusted between being higher than the indoor air dew point temperature and lower than the indoor set air dry bulb temperature to adapt to load changes, thus requiring a mixing device to supply high-temperature chilled water.

[0003] In existing technologies, for systems without a mixing center, the solution when the indoor temperature reaches the set value or there is a risk of condensation is to directly close the branch valves. This adjustment method is prone to causing large fluctuations in indoor temperature. In contrast, for systems with a mixing center, the circulation pump is placed on the terminal water supply pipe, which increases the pressure in the inlet pipe. If the pressure in the inlet pipe exceeds a certain value, there is a risk of water leakage in the underfloor heating pipe. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a mixing center for radiant air conditioning systems. It has the advantage of achieving temperature regulation by controlling the appropriate mixing ratio of inlet and outlet water. This solves the problems in existing technologies where systems without a mixing center are prone to large fluctuations in indoor temperature, while systems with a mixing center are prone to leaks in underfloor heating pipes.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A mixing center for a radiant air conditioning system includes a main body for mixing and adjusting the temperature of the system water. The main body is equipped with a data acquisition mechanism for real-time monitoring of the water supply temperature. The main body includes a variable frequency circulating booster pump and an electric three-way mixing valve. A main unit water supply pipe section is detachably installed at the first inlet of the electric three-way mixing valve. A terminal water supply pipe section is detachably installed at the second inlet of the electric three-way mixing valve. A mixing pipe section is detachably installed at the third inlet of the electric three-way mixing valve. A terminal return water pipe section is detachably installed on the variable frequency circulating booster pump. A right-angle three-way valve is detachably installed downstream of the variable frequency circulating booster pump. A main unit return water pipe section is detachably installed at one end of the right-angle three-way valve, and the other end of the right-angle three-way valve is connected to the other end of the mixing pipe section.

[0007] Preferably, the acquisition mechanism includes a first temperature acquisition device installed on the end water supply pipe section for detecting the water supply temperature, and a second temperature acquisition device installed on the end return water pipe section for detecting the return water temperature.

[0008] Preferably, the electric three-way mixing valve is equipped with an electric actuator, and the electric actuator is equipped with an adjusting handwheel.

[0009] Preferably, one end of the main unit water supply pipe section flows into the main unit water supply, one end of the terminal water supply pipe section flows into the indoor pipe, and one end of the mixing pipe section flows into the indoor side circulating return water.

[0010] Preferably, the variable frequency circulating booster pump is an adaptive variable frequency water pump, and the first temperature acquisition device and the second temperature acquisition device can be a thermometer with display function or a temperature sensor.

[0011] Preferably, the main unit water supply pipe section, the terminal water supply pipe section, the terminal return water pipe section, the main unit return water pipe section, the mixing pipe section, the variable frequency circulating booster pump, the electric three-way mixing valve, the right-angle three-way valve, the first temperature acquisition device, and the second temperature acquisition device are all wrapped with thermal insulation cotton.

[0012] By employing the above technical solution, this utility model provides a mixing center for a radiant air conditioning system, which has at least the following beneficial effects:

[0013] 1. This utility model, through the setting of the main structure, enables the device to reasonably mix water and adjust the temperature of the radiant air conditioning system. By controlling the reasonable mixing ratio of inlet and outlet water, the purpose of mixing water and adjusting temperature is achieved, so that the floor does not condense when the floor is radiantly cooled in summer, and the floor is protected from cracking when the floor is radiantly heated in winter. At the same time, the water supply temperature can be adjusted according to the changes in indoor load to achieve the required set temperature, thus truly achieving the effects of energy saving and comfort.

[0014] 2. This utility model enables the real-time detection of water supply and return temperatures by setting up a data acquisition mechanism. The system integrates the water supply temperature detected by the first temperature acquisition device and the return temperature detected by the second temperature acquisition device 10, and the opening accuracy is adjusted by the electric three-way mixing valve, which can ensure the control accuracy of the target water supply temperature of the system and provide a guarantee for precise control of the target temperature. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the electric three-way mixing valve of this utility model;

[0019] Figure 4 This is a schematic diagram of the data acquisition mechanism of this utility model.

[0020] Figure label:

[0021] 1. Main structure; 101. Main unit water supply pipe section; 102. Terminal water supply pipe section; 103. Terminal return water pipe section; 104. Main unit return water pipe section; 105. Mixing water pipe section; 106. Variable frequency circulating booster pump; 107. Electric three-way mixing valve; 108. Right angle three-way valve; 2. Data acquisition mechanism; 201. First temperature acquisition device; 202. Second temperature acquisition device. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] For systems without a mixing center, the solution when the indoor temperature reaches the set value or there is a risk of condensation is to directly close the branch valves. This adjustment method is prone to causing large fluctuations in indoor temperature. However, for systems with a mixing center, the circulation pump is placed on the terminal water supply pipe, which increases the pressure in the inlet pipe. If the pressure in the inlet pipe exceeds a certain value, it will cause the underfloor heating pipe to leak. The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a mixing center for a radiant air conditioning system.

[0024] Example 1:

[0025] Combination Figures 1-4 As shown, a mixing center for a radiant air conditioning system is proposed. A main body 1 is used for mixing and temperature regulation of the system water. The main body 1 is equipped with a data acquisition mechanism 2 for real-time monitoring of the supply water temperature.

[0026] To achieve proper water mixing and temperature regulation in a radiant air conditioning system, a main structure 1 is proposed. The main unit water supply pipe section 101, the terminal water supply pipe section 102, the terminal return water pipe section 103, the main unit return water pipe section 104, the mixing pipe section 105, the variable frequency circulating booster pump 106, the electric three-way mixing valve 107, the right-angle three-way valve 108, the first temperature acquisition device 201, and the second temperature acquisition device 202 are all wrapped with insulation cotton. The mixing center is placed inside a sheet metal casing. This sheet metal casing not only improves the product's aesthetics and standardizes installation but also effectively solves the problem of slippery floors caused by condensation dripping from the pipes and further reduces pump noise. The variable frequency circulating booster pump 106 is located at the terminal return water... On pipe section 103, the return flow is controlled so that the water flow can overcome the resistance of the electric three-way mixing valve 107 in the mixing pipe section 105 and squeeze into the terminal water supply pipe section 102, thereby establishing indoor mixing circulation. The variable frequency circulation booster pump 106 is preferably configured as an adaptive variable frequency water pump. The control board of the adaptive variable frequency water pump itself contains control functions. By selecting the appropriate control mode, the target can be controlled. The first inlet of the electric three-way mixing valve 107 is connected to one side of the main unit water supply pipe section 101 and flows into the main unit water supply. The second inlet is connected to one side of the terminal water supply pipe section 102 and flows into the indoor pipeline. The third inlet is connected to one side of the mixing pipe section 105 and flows into the indoor side circulation return water. The electric three-way mixing valve 107 is also equipped with an electric actuator. Intelligent control can command the electric actuator to operate, driving the electric three-way mixing valve 107 to switch. The electric actuator is also equipped with an adjustment handwheel, which can be manually operated in special circumstances such as power failure. By controlling the reasonable mixing ratio of inlet and outlet water, the purpose of mixing water and adjusting temperature is achieved. This prevents condensation on the floor during summer radiant cooling and protects the floor from cracking during winter radiant heating. At the same time, the water supply temperature can be adjusted according to changes in indoor load to achieve the required set temperature, truly achieving energy saving and comfort.

[0027] Example 2:

[0028] Based on Example 1, the technical solution proposed in Example 1 is used to solve the problem that in the prior art, the indoor temperature is prone to large fluctuations in systems without a mixing center, while systems with a mixing center are prone to leakage risks in the underfloor heating pipes. However, in order to accurately control the target temperature, the supply water temperature and the recovery temperature should be detected in real time.

[0029] In order to monitor the target temperature of the mixed water in real time, combined with Figure 1 and Figure 4As shown, a data acquisition mechanism 2 is proposed. A first temperature acquisition device 201 is installed on the end water supply pipe section 102 to detect the current water supply temperature in real time and use it as the target temperature for control. A second temperature acquisition device 202 is installed on the end return water pipe section 103 to detect the current return water temperature in real time. The system integrates the water supply temperature detected by the first temperature acquisition device 201 and the return water temperature detected by the second temperature acquisition device 202, and the opening accuracy is adjusted by the electric three-way mixing valve 107. This ensures the control accuracy of the system's target water supply temperature and provides a guarantee for precise control of the target temperature. Preferably, the first temperature acquisition device 201 and the second temperature acquisition device 202 can be a thermometer with display function or a temperature sensor.

[0030] During winter radiant heating, water flows through the main unit's supply water pipe section 101 and reaches the terminal supply water pipe section 102. When the first temperature acquisition device 201 detects that the terminal supply water temperature is too high, it simultaneously coordinates with the terminal return water temperature detected by the second temperature acquisition device 202. The intelligent control sends a command to the electric actuator, which drives the electric three-way mixing valve 107 to operate, causing the main unit's supply water pipe section 101 to close slightly. This connects to the mixing pipe section 105, accelerating the operation of the variable frequency circulating booster pump 106. This causes some of the return water in the terminal return water pipe section 103 to pass through the mixing pipe section 105 and reach the terminal supply water pipe section 102, where it mixes with the high-temperature supply water, lowering the terminal inlet water temperature. The remaining return water in the terminal return water pipe section 103 returns to the main unit through the main unit's return water pipe section 104. Through continuous mixing at the mixing center, the set temperature of the terminal supply water is reached.

[0031] During summer radiant cooling, water flows through the main unit's water supply pipe section 101 and reaches the terminal water supply pipe section 102. When the first temperature acquisition device 201 detects that the terminal water supply temperature is too low, it simultaneously coordinates with the terminal return water temperature detected by the second temperature acquisition device 202. The intelligent control sends a command to the electric actuator, which drives the electric three-way mixing valve 107 to actuate, causing the main unit's water supply pipe section 101 to close slightly, connecting to the mixing pipe section 105. The variable frequency circulating booster pump 106 accelerates its operation, causing some of the return water in the terminal return water pipe section 103 to pass through the mixing pipe section 105 and reach the terminal water supply section 102, where it mixes with the low-temperature water supply, raising the terminal inlet water temperature. Through continuous mixing at the mixing center, the set temperature of the terminal water supply is reached.

[0032] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydronic water mixing center for a radiant air conditioning system, comprising: It includes a main body (1) for adjusting the temperature of the mixed water in the system, and the main body (1) is provided with a data acquisition mechanism (2) for real-time detection of the water supply temperature. The main body (1) includes a variable frequency circulating booster pump (106) and an electric three-way mixing valve (107). The first inlet of the electric three-way mixing valve (107) is detachably equipped with a main unit water supply pipe section (101). The second inlet of the electric three-way mixing valve (107) is detachably equipped with an end water supply pipe section (102). The third inlet of the electric three-way mixing valve (107) is detachably equipped with a mixing pipe section (105). The variable frequency circulating booster pump (106) is detachably equipped with an end return water pipe section (103). The downstream side of the variable frequency circulating booster pump (106) is detachably equipped with a right angle three-way valve (108). One end of the right angle three-way valve (108) is detachably equipped with a main unit return water pipe section (104). The other end of the right angle three-way valve (108) is connected to the other end of the mixing pipe section (105).

2. A water mixing center for a radiant air conditioning system as defined in claim 1, wherein: The acquisition mechanism (2) includes a first temperature acquisition device (201) installed on the end water supply pipe section (102) for detecting the water supply temperature, and a second temperature acquisition device (202) installed on the end return water pipe section (103) for detecting the return water temperature.

3. A water mixing center for a radiant air conditioning system as set forth in claim 2, wherein: The electric three-way mixing valve (107) is equipped with an electric actuator, and the electric actuator is equipped with an adjusting handwheel.

4. A hydronic centre for a radiant air conditioning system as claimed in claim 3, wherein: One end of the main unit water supply pipe section (101) flows into the main unit water supply, one end of the terminal water supply pipe section (102) flows into the indoor pipe, and one end of the mixing pipe section (105) flows into the indoor side circulating return water.

5. A hydronic center for a radiant air conditioning system as set forth in claim 2, wherein: The variable frequency circulating booster pump (106) is an adaptive variable frequency water pump, and the first temperature acquisition device (201) and the second temperature acquisition device (202) can be a temperature meter or temperature sensor with display function.

6. A water mixing center for a radiant air conditioning system as set forth in claim 2, wherein: The main unit water supply pipe section (101), the terminal water supply pipe section (102), the terminal return water pipe section (103), the main unit return water pipe section (104), the mixing pipe section (105), the variable frequency circulating booster pump (106), the electric three-way mixing valve (107), the right angle three-way valve (108), the first temperature acquisition device (201), and the second temperature acquisition device (202) are all wrapped with heat insulation cotton.

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