Radiation floor water mixing device

Abstract

The utility model provides a radiation floor water mixing device, which is characterized in that a water return pipeline of a first water tank is connected with a water outlet of a water collector, a water outlet pipeline of the first water tank is connected with a water inlet of a water segregator, and a cold supply pipeline of the first water tank is respectively connected with a first cold supply branch and a second cold supply branch of a second water tank; a water inlet pipeline of the second water tank is connected with a cold water pipeline output by a cold source; wherein the temperature of cold water in the second water tank is lower than that of cold water in the first water tank, and the height of the first cold supply branch of the second water tank is lower than that of the second cold supply branch, so that the water temperature in the first water tank can be adjusted by fully utilizing the cooling capacity in the second water tank, and the cold supply requirement of the radiation floor system is met; the accuracy of water temperature control is enhanced, so that the water mixing device operates at the position close to a thermal load center, the energy loss of cold water in the transportation process is reduced, and the energy efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of water supply for a radiant floor system, in particular to a radiant floor mixing device. Background Art

[0002] The surface temperature of the radiant floor needs to be controlled to avoid condensation, so the water supply temperature needs to be strictly controlled according to the indoor dew point temperature. However, the cold water produced by the cold source is difficult to meet the water supply demand, and a mixing device is required to regulate the water supply temperature of the radiant system.

[0003] For traditional mixing devices, the water supply and return water ratios at different temperatures are generally directly mixed and supplied to the radiant system, and two water tanks are not used simultaneously. On the one hand, the water temperature of the water supply pipeline is extremely vulnerable to the influence of the ambient temperature, resulting in a large heat loss phenomenon; on the other hand, the use of a single water tank makes the water temperature adjustment of the water supply pipeline inaccurate, difficult to achieve an ideal control effect, unable to meet the demanding environmental requirements of the radiant floor cooling system in large buildings or public buildings where the indoor heat gain varies, and the energy efficiency is low. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the utility model innovatively proposes a radiant floor mixing device, which can fully utilize the cold energy in the second water tank to adjust the water temperature in the first water tank, meet the cooling demand of the radiant floor system, enhance the accuracy of water temperature control, enable the mixing device to operate near the heat load center, reduce the energy loss during the transportation of cold water, and improve the energy efficiency.

[0005] The utility model provides a radiant floor mixing device, which is arranged between the water collector and the water distributor in the radiant floor, and includes: a regulating valve, a circulating water pump, a controller, a sensor module, a first water tank, and a second water tank. The return water pipeline of the first water tank is connected to the water outlet of the water collector, the water outlet pipeline of the first water tank is connected to the water inlet of the water distributor, and the cooling pipelines of the first water tank are respectively connected to the first cooling branch and the second cooling branch of the second water tank; the water inlet pipeline of the second water tank is connected to the cold water pipeline output by the cold source; the regulating valves are respectively arranged on the first cooling branch, the second cooling branch, and the water inlet pipeline of the second water tank; the sensor module is respectively arranged on the first cooling branch, the second cooling branch of the second water tank, the return water pipeline, and the water outlet pipeline of the first water tank; the data input end of the controller is respectively communicatively connected to the data output end of the sensor module, and the control output end of the controller is respectively communicatively connected to the control input end of the regulating valve; the circulating water pumps are respectively installed on the water outlet pipeline, the cooling pipeline, and the drainage main pipe of the first water tank; wherein, the cold water temperature in the second water tank is lower than that in the first water tank, and the height of the first cooling branch of the second water tank is lower than that of the second cooling branch.

[0006] Optionally, one path of the water exchange pipeline of the first water tank is connected to the water return pipeline of the first water tank, and the other path of the water exchange pipeline of the first water tank is connected to the drainage pipeline on the water return pipeline of the first water tank; one path of the water exchange pipeline of the second water tank is connected to the drainage pipeline on the water return pipeline of the first water tank, and the other path of the water exchange pipeline of the second water tank is connected to the main drainage pipeline.

[0007] Further, the regulating valve includes an electric flow regulating valve and a stop valve. The electric flow regulating valve is respectively arranged on the first cooling branch, the second cooling branch, the water inlet pipeline, the water exchange pipeline of the second water tank, and the drainage pipeline on the water exchange pipeline and the water return pipeline of the first water tank; the stop valve is arranged on the main drainage pipeline.

[0008] Optionally, the circulation pumps for providing power for the water circulation are respectively arranged on the water outlet pipeline of the first water tank, the cooling pipeline of the first water tank, and the main drainage pipeline.

[0009] Optionally, the sensor module includes a temperature sensor, a flow sensor, and a water level sensor. The temperature sensors are respectively arranged on the water return pipeline and the water outlet pipeline of the first water tank, and the first cooling branch and the second cooling branch of the second water tank. The temperature data output ends of the temperature sensors are correspondingly connected to the temperature data input end of the controller; the flow sensors are respectively arranged on the water return pipeline and the water outlet pipeline of the first water tank. The flow data output ends of the flow sensors are correspondingly connected to the flow data input end of the controller; the water level sensors are respectively arranged at the top of the first water tank and the top of the second water tank. The water level data output ends of the water level sensors are correspondingly connected to the water level data input end of the controller.

[0010] Optionally, the height of the second cooling branch is higher than the height of the first cooling branch, and the height of the second cooling branch accounts for 2 / 3 of the total height of the second water tank, and the height of the first cooling branch accounts for 1 / 4 of the total height of the second water tank.

[0011] Further, the water inlet of the cooling pipeline of the first water tank is arranged at the top of the first water tank, the water inlet of the water return pipeline of the first water tank is arranged at 1 / 2 of the total height of the first water tank, and the water outlet of the water outlet pipeline of the first water tank is arranged at 1 / 3 of the total height of the first water tank; the water outlet of the sewage pipeline of the first water tank is arranged at the bottom of the first water tank, and the water outlet of the sewage pipeline of the second water tank is arranged at the bottom of the second water tank.

[0012] Optionally, a first heat insulation layer is arranged outside the first water tank, and a second heat insulation layer is arranged outside the second water tank. The first heat insulation layer and the second heat insulation layer are both polyurethane foam heat insulation layers.

[0013] Optionally, it further includes a housing alarm device disposed outside the water outlet pipeline of the first water tank, and an alarm control input end of the housing alarm device is communicatively connected to an alarm control output end of the controller.

[0014] Further, the housing alarm device includes a housing, and an alarm display screen, an alarm lamp, an input module, and an adjustment module disposed inside the housing. An alarm data input end of the alarm display screen is communicatively connected to an alarm data output end of the controller. The alarm lamp is electrically connected to an alarm control end of the controller. A set data output end of the input module is communicatively connected to a set data input end of the controller. An adjustment data output end of the adjustment module is communicatively connected to an adjustment data input end of the controller.

[0015] The technical solution adopted by the present utility model includes the following technical effects:

[0016] 1. In order to solve the problems existing in the prior art, the present utility model proposes a radiant floor mixing device, which can fully utilize the cold in the second water tank to adjust the water temperature in the first water tank, meet the cooling demand of the radiant floor system, enhance the accuracy of water temperature control, enable the mixing device to operate near the heat load center, and the first water tank can be centrally arranged with the cooling terminal equipment, reducing the length of the water supply pipeline between the first water tank and the water distributor, reducing the energy loss of cold water during transportation, and improving energy efficiency.

[0017] 2. In the technical solution of the present utility model, the two cooling branches in the second water tank are arranged vertically. The height of the first cooling branch of the second water tank is lower than that of the second cooling branch. The height where the second cooling branch is located is higher than the height where the first cooling branch is located. Moreover, the height where the second cooling branch is located accounts for 2 / 3 of the total height of the second water tank, and the height where the first cooling branch pipeline is located accounts for 1 / 4 of the total height of the second water tank. The upper and lower stratification phenomenon of the fluid temperature in the second water tank can be utilized to fully utilize the cold in the second water tank, enhancing the accuracy and stability of water temperature control. The water inlet of the cooling pipeline of the first water tank is arranged at the top of the first water tank. The water inlet of the return water pipeline of the first water tank is arranged at 1 / 2 of the total height of the first water tank. The water outlet of the water outlet pipeline of the first water tank is arranged at 1 / 3 of the first water tank. The water outlet of the sewage pipeline of the first water tank is arranged at the bottom of the first water tank. The water outlet of the sewage pipeline of the second water tank is arranged at the bottom of the second water tank, enabling the cold water in the second water tank to enter from the upper part of the first water tank through the cooling pipeline, and the return water to enter from the lower part of the first water tank through the return water pipeline, ensuring that the water flow can be fully dispersed after mixing and guaranteeing the uniformity of the water temperature.

[0018] 3. In the technical solution of the present utility model, one path of the water exchange pipeline of the first water tank is connected to the water return pipeline of the first water tank, and the other path of the water exchange pipeline of the first water tank is connected to the drainage pipeline on the water return pipeline of the first water tank; one path of the water exchange pipeline of the second water tank is connected to the drainage pipeline on the water return pipeline of the first water tank, and the other path of the water exchange pipeline of the second water tank is connected to the main drainage pipeline; the regulating valve includes an electric flow regulating valve and a stop valve. The electric flow regulating valve is respectively arranged on the first cooling branch, the second cooling branch, the water inlet pipeline, the drainage pipeline of the second water tank, and the water exchange pipeline and the drainage pipeline on the water return pipeline of the first water tank. The flow of the water return pipeline can be adjusted by the electric flow regulating valve to realize the flow distribution of the water circuit; the stop valve can prevent the water flow in the pipeline from flowing back and maintain the accurate and stable water supply temperature; moreover, the cold water in the first water tank and the second water tank can be replaced separately or simultaneously.

[0019] 4. In the technical solution of the present utility model, the sensor module includes a temperature sensor, a flow sensor, and a water level sensor, all of which can transmit the measured parameters to the controller to realize the precise dynamic monitoring of the system.

[0020] 5. In the technical solution of the present utility model, a first heat insulation layer is arranged outside the first water tank, and a second heat insulation layer is arranged outside the second water tank. Both the first heat insulation layer and the second heat insulation layer are polyurethane foam heat insulation layers, so that the first water tank and the second water tank can be effectively heat-insulated, avoiding the energy loss of cold water during transportation and improving the accuracy of the water supply temperature.

[0021] 6. In the technical solution of the present utility model, the mixing device further includes a housing alarm device arranged outside the water outlet pipeline of the first water tank. The alarm control input end of the housing alarm device is communicatively connected to the alarm control output end of the controller, and abnormal alarm of water temperature or flow can be realized.

[0022] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of the mixing device in the first embodiment of the present utility model;

[0025] Figure 2 It is a schematic structural diagram of the housing alarm device in the mixing device in the first embodiment of the present utility model.

[0026] 1. Water separator; 2. First circulation pump on the water supply pipeline (discharge pipeline); 3. First flow sensor on the water supply pipeline (discharge pipeline); 4. Cooling pipeline; 5. First electric flow regulating valve on the first cooling branch; 6. First temperature sensor on the first cooling branch; 7. Second electric flow regulating valve on the second cooling branch; 8. Controller; 9. Second temperature sensor on the second cooling branch; 10. Second water tank; 11. Third electric flow regulating valve on the water exchange pipeline of the second water tank; 12. Water exchange pipeline of the second water tank; 13. Water inlet pipeline of the second water tank; 14. Fourth electric flow regulating valve on the water inlet pipeline of the second water tank; 15. Filter; 16. Fifth electric flow regulating valve on the drain pipeline of the return water pipeline; 17. Second flow sensor on the return water pipeline; 18. Third temperature sensor on the return water pipeline; 19. Water collector; 20. Sewage pipeline of the second water tank; 21. Drain pipeline of the return water pipeline; 22. Return water pipeline; 23. First cooling branch; 24. Second cooling branch; 25. Radiant floor water supply pipeline; 26. First water level sensor of the second water tank; 27. First water tank; 28. Sewage pipeline of the first water tank; 29. Second water level sensor of the first water tank; 30. Second circulation pump on the cooling pipeline; 31. Shell; 32. Fourth temperature sensor on the water supply pipeline; 33. Water outlet pipeline of the water tank; 34. Stop valve on the main drain pipeline; 35. Third circulation pump on the main drain pipeline; 36. Sixth electric flow regulating valve on the water exchange pipeline of the first water tank; 37. Water exchange pipeline of the first water tank; 38. Alarm lamp; 39. Manual flow regulating valve of the water supply pipeline; 40. Input module; 41. Regulation module; 42. Alarm display screen. Detailed implementation mode

[0027] To clearly illustrate the technical features of this solution, the following will elaborate on the present utility model in detail through specific implementation modes and in conjunction with its accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. In addition, the present utility model may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present utility model omits the description of well-known components and processing technologies and processes to avoid unnecessarily limiting the present utility model.

[0028] Embodiment 1

[0029] As Figure 1As shown in the figure, the utility model provides a mixing device for a radiant floor, which is arranged between the water collector 19 and the water distributor 1 in the radiant floor, and includes: a regulating valve, a circulating water pump, a controller 8, a sensor module, a first water tank 27, and a second water tank 10. The return water pipeline 22 of the first water tank 27 (the return water pipeline of the radiant floor) is connected to the water outlet of the water collector 19, and the water supply pipeline (the water supply pipeline of the radiant floor) 33 of the first water tank 27 is connected to the water inlet of the water distributor 1. The cooling pipeline 4 of the first water tank 27 is respectively connected to the first cooling branch 23 and the second cooling branch 24 of the second water tank 10; the water inlet pipeline 13 of the second water tank 10 is connected to the cold water pipeline output by the cold source; the regulating valve is respectively arranged on the first cooling branch 23, the second cooling branch 24, and the water inlet pipeline 13 of the second water tank 10; the sensor module is respectively arranged on the first cooling branch 23, the second cooling branch 24 of the second water tank 10, the return water pipeline 22, and the water supply pipeline 33 of the first water tank 27; the data input end of the controller 8 is respectively communicatively connected to the data output end of the sensor module, and the control output end of the controller 8 is respectively communicatively connected to the control input end of the regulating valve; the circulating water pump is respectively installed on the water supply pipeline 33, the cooling pipeline 4, and the drainage main pipe of the first water tank 27; wherein, the cold water temperature in the second water tank 10 (water storage tank) is lower than the cold water temperature in the first water tank 27, and the height of the first cooling branch 23 of the second water tank 10 is lower than the height of the second cooling branch 24.

[0030] Wherein, one path of the water exchange pipeline 37 of the first water tank 27 is connected to the return water pipeline 22 of the first water tank 27, and the other path of the water exchange pipeline 37 of the first water tank 27 is connected to the drainage pipeline 21 on the return water pipeline 22 of the first water tank 27; one path of the water exchange pipeline 12 of the second water tank 10 is connected to the drainage pipeline 21 on the return water pipeline 22 of the first water tank 27, and the other path of the water exchange pipeline 12 of the second water tank 10 is connected to the drainage main pipe.

[0031] The regulating valve includes an electric flow regulating valve and a stop valve 34. The electric flow regulating valve is respectively arranged on the first cooling branch 23, the second cooling branch 24, the water inlet pipeline 13, the water exchange pipeline 12 of the second water tank 10, and the drainage pipeline 21 on the water exchange pipeline 37 and the return water pipeline 22 of the first water tank 27. That is, on the second water tank 10: the first electric flow regulating valve 5 on the first cooling branch 23, the second electric flow regulating valve 7 on the second cooling branch 24, the third electric flow regulating valve 11 on the water exchange pipeline 12, and the fourth electric flow regulating valve 14 on the water inlet pipeline 13; on the first water tank 27: the fifth electric flow regulating valve 16 on the drainage pipeline 21 of the return water pipeline 22, and the sixth electric flow regulating valve 36 on the water exchange pipeline 37; the stop valve 34 is arranged on the drainage main pipe.

[0032] The electric flow regulating valve is used to regulate the flow rate of the return water pipeline and achieve the flow distribution of the water circuit. The electric flow regulating valve is of two-way balanced type, and the working temperature can be 2 - 140 °C; the stop valve 34 prevents the water flow in the drainage pipeline from flowing back and maintains the accurate and stable supply water temperature.

[0033] Among them, the circulating water pumps used to provide power for the water circulation are respectively arranged on the outlet pipeline 33 of the first water tank 27, the cooling pipeline 4 of the first water tank 27, and the main drainage pipeline, that is, the first circulating water pump 2 arranged on the outlet pipeline 33 (water supply pipeline 25) of the first water tank 27, the second circulating water pump 30 arranged on the cooling pipeline 4 of the first water tank 27, and the third circulating water pump 35 arranged on the main drainage pipeline, which provide power for the water system circulation and prevent the cold water from slugging. Since the flow rate in the pipeline will change, all the circulating water pumps are selected as variable frequency water pumps and are adjusted according to the pipeline flow rate demand during operation, so as to reduce the system transmission and distribution energy consumption and improve the system performance.

[0034] Among them, the sensor module includes a temperature sensor, a flow sensor, and a water level sensor. The temperature sensors are respectively arranged on the return water pipeline 22, the outlet pipeline 33 of the first water tank 27, the first cooling branch 23, and the second cooling branch 24 of the second water tank 10, that is, the first temperature sensor 6 on the first cooling branch 23, the second temperature sensor 9 on the second cooling branch 24, the third temperature sensor 18 on the return water pipeline 22, and the fourth temperature sensor 32 on the water supply pipeline 25 (outlet pipeline 33); the temperature data output terminals of the temperature sensors are respectively and correspondingly connected to the temperature data input terminal of the controller 8; the flow sensors are respectively arranged on the return water pipeline 22, the outlet pipeline 33 of the first water tank 27, that is, the second flow sensor 17 on the return water pipeline 22 of the first water tank 27, and the first flow sensor 3 on the outlet pipeline 33 of the first water tank 27; the flow data output terminals of the flow sensors are respectively and correspondingly connected to the flow data input terminal of the controller 8; the water level sensors are respectively arranged on the top of the first water tank 27 and the top of the second water tank 10, that is, the second flow sensor 29 on the top of the first water tank 27, and the first flow sensor 26 on the top of the first water tank 27; the water level data output terminals of the water level sensors are respectively and correspondingly connected to the water level data input terminal of the controller 8.

[0035] The temperature sensor can adopt HST-P to measure the water flow temperature of the loop, which can measure in an environment of -40 - 70 °C, the measurable water temperature range is -40 - 150 °C, and the response time does not exceed 35 seconds; the flow sensor is used to measure the water flow rate of the loop; the electronic water level sensor is installed in the first water tank 27 and the water storage tank (the second water tank 10) to detect the water level in the first water tank 27 and ensure that the water volume is not over-full or over-empty. These sensors can all convert the measured parameters into signals and then transmit the signals to the controller 8 through WiFi to achieve the precise dynamic monitoring of the system.

[0036] The height of the second cooling branch 24 is higher than that of the first cooling branch 23, and the height of the second cooling branch 24 accounts for 2 / 3 of the total height of the second water tank 10, while the height of the first cooling branch 23 accounts for 1 / 4 of the total height of the second water tank 10.

[0037] The water storage tank (the second water tank 10) stores the cold water supplied by the cold source, provides cold water with a temperature lower than the supply water temperature for the mixing water system, and a polyurethane foam insulation layer (the second insulation layer) is laid on the outer side of the water storage tank to reduce the heat exchange between the cold water in the water storage tank and the outdoor environment. The water storage tank has one water inlet and four water outlets. The water inlet (the water inlet pipeline 13) is connected to the cold source, so that the cold water produced by the cold source enters the water storage tank. The four water outlets are respectively connected to a water exchange pipeline 12, two water outlet pipelines (the first cooling branch 23 and the second cooling branch 24) and a sewage pipeline 20. The cold water in the water storage tank has temperature stratification. Therefore, in order to reduce the error between the supplied cooling capacity and the required cooling capacity, two water outlet pipelines are installed on the water storage tank. The two water outlet pipelines have different heights. The second cooling branch 24 is in the higher temperature area of the water storage tank, and the height of the second cooling branch accounts for 2 / 3 of the total height of the water storage tank; the first cooling branch 23 is in the lower temperature area of the water storage tank, and the height of the first cooling branch 23 accounts for 1 / 4 of the total height of the water storage tank. The water exchange pipeline 12 is at 3 / 4 of the water storage tank, the water inlet pipeline is at 1 / 2 of the water storage tank, and the sewage pipeline 20 is at the bottom end of the water storage tank. When the required cooling capacity changes, the three pipelines: the first cooling branch 23, the second cooling branch 24 and the water exchange pipeline 12 work in combination to supply cooling to the indoor environment. Temperature sensors and regulating valves are installed on each pipeline to ensure the precise control of the water temperature and water volume of each pipeline. The water inlet pipeline 13 is directly connected to the cold source and supplies cold water in the range of 7 - 12 °C to the water storage tank. The fluid temperature of the second cooling pipeline 24 is higher than that of the first cooling branch 23, and the specific temperature difference can be measured by the temperature sensors on the pipeline. When the outlet water temperatures of the first cooling branch 23 and the second cooling branch 24 are too high to meet the mixing water demand, the water exchange pipeline 12 and the water inlet pipeline 13 are opened to replace the water in the water storage tank with low-temperature cold water that meets the mixing water demand of the mixing device. The diameter of the water supply pipeline 25 of the radiant floor system is small. In order to avoid pipeline blockage and ensure the water quality of the system circulation, a filter (i.e., a straight-through dirt remover or a filter screen) is installed on the water inlet pipeline 13 entering the water storage tank. This device has a small flow loss and is easy to maintain.

[0038] The water inlet of the cooling pipeline 4 of the first water tank 27 is arranged at the top end of the first water tank 27. The water inlet of the return water pipeline 22 of the first water tank 27 is arranged at the 1 / 2 of the total height of the first water tank 27. The water outlet of the water outlet pipeline 33 of the first water tank 27 is arranged at the 1 / 3 of the total height of the first water tank 27. The water outlet of the sewage pipeline 28 of the first water tank 27 is arranged at the bottom of the first water tank 27. The water outlet of the sewage pipeline 20 of the second water tank 10 is arranged at the bottom of the second water tank 10.

[0039] The cold water in the water storage tank and the return water in the return water pipeline 22 are transported to the first water tank 27 in proportion, and are mixed and stored in the first water tank 27. The high-temperature cold water is stored in the first water tank 27 to meet the cooling demand. The fluid temperature in the first water tank 27 is in the range of 16 - 24 °C. The stored cold water is transported to the water supply pipeline 25 (the water outlet pipeline 33 of the first water tank 27) of the radiant floor when the system needs it. A polyurethane foam insulation layer (the first insulation layer) is installed outside the first water tank 10 to reduce the heat exchange between the cold water and the environment. The first water tank 27 has two water inlets and three water outlets. The two water inlets are respectively connected to the cooling pipeline 4 and the return water pipeline 22, while the three water outlets are respectively connected to the water exchange pipeline 37, the water supply pipeline 25 (the water outlet pipeline 33) and the sewage pipeline 28. The cooling pipeline 4 is at the top end of the first water tank 27, the water inlet height of the return water pipeline 22 is set in the middle of the total height of the first water tank 27, the water outlet of the water outlet pipeline 33 is arranged at the 1 / 3 of the total height of the first water tank 27, and the sewage pipeline 28 is at the bottom end of the first water tank 27. Similarly, when the outlet water temperature of the water supply is too low to meet the mixing water demand, the water exchange pipeline 37 and the return water pipeline 22 are opened, the cooling pipeline 4 is closed, and the water in the first water tank is replaced with high-temperature cold water that meets the water supply temperature demand. When it is necessary to change the water in the system, the water storage tank or the first water tank, the water needs to be discharged through the sewage pipeline.

[0040] In the controller 8, a signal transmission path is formed among each regulating valve, the circulating water pump and the sensor module through the wireless network to collect, process, send and store signals. The collected system parameters are processed through the established control logic, and then the control signals of each regulating valve and the circulating water pump are sent to regulate the operation of the system.

[0041] Preferably, a radiant floor water mixing device in this embodiment further includes a housing alarm device arranged outside the water outlet pipeline 33 of the first water tank 27. The alarm control input end of the housing alarm device is communicatively connected to the alarm control output end of the controller 8.

[0042] As Figure 2As shown in the figure, the housing alarm device includes a housing 31 and an alarm display screen 42, an alarm lamp 38, an input module 40, and an adjustment module 41 disposed inside the housing 31. The alarm data input end of the alarm display screen 42 is communicatively connected to the alarm data output end of the controller 8. The alarm lamp 38 is electrically connected to the alarm control end of the controller 8. The set data output end of the input module 40 is communicatively connected to the set data input end of the controller 8. The adjustment data output end of the adjustment module 41 is communicatively connected to the adjustment data input end of the controller 8.

[0043] When the control is abnormal or the data is abnormal, the controller 8 triggers the alarm mode to give feedback to the control personnel. The situations of triggering the alarm mode include that the water supply temperature obtained after mixing deviates from the required water supply temperature of the system, the water supply temperature obtained after mixing exceeds the range of 16 - 24 °C, the water level in the first water tank does not meet the set minimum requirement, etc.

[0044] A third heat preservation layer can also be installed on the housing 31, and the alarm display screen is designed to display the instantaneous flow rate and temperature of the water flow in the return water pipe 22 and the water supply pipe 25, providing a control basis for the operator. Displaying the dynamics of the pipe network digitally is beneficial to reducing the risk of hydraulic imbalance in the official website. In addition, an operation area is set, including the input module 40 and the adjustment module 41. The input module 40 consists of ten digital keys and can manually input the water supply temperature. The pipe system status can be selected and viewed through the adjustment module 41. The adjustment module 41 includes a left key, a right key, an OK key, a cancel key, and a power key. Press the power key to connect the alarm display screen 42 to different pipeline sensors, and then enter the menu interface through the OK key. The pipeline dynamic parameters can be observed in the menu interface or the water supply temperature can be input. Additionally, the manual flow regulating valve 39 can be operated on the housing 31 to adjust the total flow rate of the water supply pipe 25.

[0045] Implementation principle: The water mixing device is equipped with a wireless network control system. After the system is started, it first detects the water flow temperatures of the cooling supply pipe 4 and the return water pipe 22 and judges the magnitudes of the return water temperature and the required water supply temperature for the radiant floor. If the return water temperature is less than the required water supply temperature, the cooling supply pipe 4 is closed, and the system operates in a return water circulation mode; if the water flow temperature of the return water pipe 22 is not less than the required water supply temperature, the cooling supply pipe 4 is opened for water mixing operation.

[0046] In addition, the water temperature setting of the water mixing system preferentially selects the control personnel's input signal, that is, when the controller 8 monitors the manual input water supply temperature signal of the input module 40.

[0047] The first cooling branch 23 and the second cooling branch 24 are connected to the cooling pipeline 4 through a tee. Both the first cooling branch 23 and the second cooling branch 24 are provided with transportation power by the second circulating water pump 30 on the cooling pipeline 4. When the water supply flow rate of the first cooling branch 23 or the second cooling branch 24 is greater than 80% of the maximum flow rate, the regulating valves of the water exchange pipeline 12 and the water inlet pipeline 13 of the water storage tank are opened to discharge the cold water in the first water tank 27 and transport chilled water to the first water tank 27 at the same time, preventing insufficient cold energy required for water mixing. When the water temperature of the first water tank 27 is higher than the radiation floor water supply temperature for two cycles, the regulating valve on the water exchange pipeline 37 of the first water tank 27 is opened, and at the same time, cold energy is transported into the first water tank 27 through the cooling pipeline 4. The drain pipeline 21 on the water exchange pipeline 37 and the return water pipeline 22 of the first water tank 27 and the water exchange pipeline 12 of the water storage tank are finally combined into a total drain pipeline, and the transportation power is provided by the third circulating water pump 35 on the total drain pipeline. The connection between pipelines uses a T-shaped tee.

[0048] To ensure the normal operation of the water system, during the operation process, the water levels of the water storage tank and the first water tank are detected by water level sensors, so as to replenish water into the water storage tank and the first water tank 27 in time when the water levels are low. Specifically as follows: If the water level is set to 3 / 4 of the total height, when the water level is lower than 3 / 4 of the total height of the water storage tank or the first water tank 27, the water level sensor sends a signal to the controller 8 to open the water inlet valve; when the water level is higher than 8 / 9 of the water storage tank or the first water tank 27, the water level sensor sends a signal to the controller 8, and the water inlet valve automatically closes slightly.

[0049] The chilled water enters from the upper part of the first water tank 27 through the cooling pipeline 4, and the return water enters from the lower part of the first water tank 27 through the return water pipeline 22. The water flow can be fully dispersed after mixing, ensuring the uniformity of the water temperature; and the supply and return water will be transported to the first water tank 27 in advance, so that there is a certain time for the hot and cold fluids in the first water tank 27 to mix, further ensuring the uniformity of the fluid temperature in the pipeline after water mixing. Storing the chilled water that has been mixed evenly in advance in the first water tank can also improve the response time of the water mixing system. The water mixing device optimizes the ratio of the cooling flow rate and the return water flow rate, avoids the water supply temperature of the radiation floor system from being too cold or too hot, is beneficial to improving the system energy efficiency, and realizes the optimization of system operation.

[0050] In order to solve the problems existing in the prior art, the present utility model proposes a radiation floor water mixing device, which can make full use of the cold energy in the second water tank to adjust the water temperature in the first water tank, meet the cooling demand of the radiation floor system, enhance the accuracy of water temperature control, enable the water mixing device to operate at a position close to the heat load center, the first water tank can be centrally arranged with the cooling terminal equipment, reduce the length of the water supply pipeline between the first water tank and the water distributor, reduce the energy loss of the chilled water during transportation, and improve the energy efficiency.

[0051] In the technical solution of the present utility model, two cooling branches in the second water tank are arranged vertically. The height of the first cooling branch of the second water tank is lower than that of the second cooling branch. The height where the pipeline of the second cooling branch is located is higher than the height where the first cooling branch is located. Moreover, the height where the pipeline of the second cooling branch is located is at 2 / 3 of the total height of the second water tank, and the height where the pipeline of the first cooling branch is located is at 1 / 4 of the total height of the second water tank. The phenomenon of upper and lower stratification of the fluid temperature in the second water tank can be utilized to make full use of the cold energy in the second water tank, enhancing the accuracy and stability of water temperature control. The water inlet of the cooling pipeline of the first water tank is arranged at the top of the first water tank. The water inlet of the return water pipeline of the first water tank is arranged at 1 / 2 of the total height of the first water tank. The water outlet of the water outlet pipeline of the first water tank is arranged at 1 / 3 of the first water tank. The water outlet of the sewage pipeline of the first water tank is arranged at the bottom of the first water tank, and the water outlet of the sewage pipeline of the second water tank is arranged at the bottom of the second water tank. Thus, the cold water in the second water tank enters the upper part of the first water tank through the cooling pipeline, and the return water enters the lower part of the first water tank through the return water pipeline. The water flow can be fully dispersed after mixing, ensuring the uniformity of water temperature.

[0052] In the technical solution of the present utility model, one path of the water exchange pipeline of the first water tank is connected to the return water pipeline of the first water tank, and the other path of the water exchange pipeline of the first water tank is connected to the drainage pipeline on the return water pipeline of the first water tank. One path of the water exchange pipeline of the second water tank is connected to the drainage pipeline on the return water pipeline of the first water tank, and the other path of the water exchange pipeline of the second water tank is connected to the main drainage pipe. The regulating valve includes an electric flow regulating valve and a stop valve. The electric flow regulating valve is respectively arranged on the first cooling branch, the second cooling branch, the water inlet pipeline, the drainage pipeline of the second water tank, and the water exchange pipeline of the first water tank and the drainage pipeline on the return water pipeline. The flow of the return water pipeline can be adjusted by the electric flow regulating valve to realize the flow distribution of the water circuit. The stop valve can prevent the water flow in the pipeline from flowing back, maintaining the accurate and stable supply water temperature. Moreover, the cold water in the first water tank and the second water tank can be replaced separately or simultaneously.

[0053] In the technical solution of the present utility model, the sensor module includes a temperature sensor, a flow sensor, and a water level sensor, all of which can transmit the measured parameters to the controller to realize the precise dynamic monitoring of the system.

[0054] In the technical solution of the present utility model, a first heat insulation layer is arranged outside the first water tank, and a second heat insulation layer is arranged outside the second water tank. Both the first heat insulation layer and the second heat insulation layer are polyurethane foam heat insulation layers, enabling the first water tank and the second water tank to be effectively heat-insulated, avoiding the energy loss of cold water during transportation, and improving the accuracy of the supply water temperature.

[0055] In the technical solution of the present utility model, the mixing water device further includes a housing alarm device disposed outside the water outlet pipeline of the first water tank. The alarm control input end of the housing alarm device is communicatively connected to the alarm control output end of the controller, and abnormal alarm of water temperature or flow rate can be realized.

[0056] Although the specific implementation manners of the present utility model are described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present utility model. Those skilled in the art should understand that based on the technical solution of the present utility model, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present utility model.

Claims

1. A radiant floor water mixing device, arranged between a water collector and a water distributor in a radiant floor, characterized in that: include: A regulating valve, a circulating water pump, a controller, a sensor module, a first water tank, and a second water tank. The return water pipeline of the first water tank is connected to the water outlet of the water collector, the water outlet pipeline of the first water tank is connected to the water inlet of the water distributor, the cooling pipeline of the first water tank is respectively connected to the first cooling branch and the second cooling branch of the second water tank; the water inlet pipeline of the second water tank is connected to the cold water pipeline output by the cold source; the regulating valve is respectively arranged on the first cooling branch, the second cooling branch and the water inlet pipeline of the second water tank; the sensor modules are respectively arranged The first cooling branch, the second cooling branch and the return pipe and the outlet pipe of the first water tank are placed in the second water tank; the data input end of the controller is communicatively connected with the data output end of the sensor module, and the control output end of the controller is communicatively connected with the control input end of the regulating valve; the circulating water pump is respectively installed on the outlet pipe, the cooling pipe and the drainage main pipe of the first water tank; wherein the cold water temperature in the second water tank is lower than the cold water temperature in the first water tank, and the height of the first cooling branch of the second water tank is lower than the height of the second cooling branch.

2. A radiant floor water mixing device according to claim 1, characterized in that: One water exchange pipeline of the first water tank is connected to the return pipeline of the first water tank, and another water exchange pipeline of the first water tank is connected to the drainage pipeline on the return pipeline of the first water tank; one water exchange pipeline of the second water tank is connected to the drainage pipeline on the return pipeline of the first water tank, and another water exchange pipeline of the second water tank is connected to the drainage main pipe.

3. A radiant floor water mixing device according to claim 2, characterized in that: The regulating valve includes an electric flow regulating valve and a stop valve. The electric flow regulating valve is respectively arranged on the first cooling branch, the second cooling branch, the water inlet pipeline, the water exchange pipeline of the second water tank, and the water exchange pipeline and the drainage pipeline on the return pipeline of the first water tank; the stop valve is arranged on the drainage main pipe.

4. A radiant floor water mixing device according to claim 2, characterized in that: The circulating water pump used to provide power for water circulation is respectively arranged on the water outlet pipeline of the first water tank, the cooling pipeline of the first water tank and the drainage main pipe.

5. The radiant floor water mixing device according to claim 1, characterized in that: The sensor module includes a temperature sensor, a flow sensor and a water level sensor. The temperature sensors are respectively arranged in the return pipe and the outlet pipe of the first water tank and the first cooling branch and the second cooling branch of the second water tank. The temperature data output ends of the temperature sensors are correspondingly connected with the temperature data input ends of the controller; the flow sensors are respectively arranged in the return pipe and the outlet pipe of the first water tank, and the flow data output ends of the flow sensors are correspondingly connected with the flow data input ends of the controller; the water level sensors are respectively arranged at the top of the first water tank and the top of the second water tank, and the water level data output ends of the water level sensors are correspondingly connected with the water level data input ends of the controller.

6. The radiant floor water mixing device according to claim 1, characterized in that: The height of the second cooling branch is higher than that of the first cooling branch, and the height of the second cooling branch accounts for 2 / 3 of the total height of the second water tank, while the height of the first cooling branch accounts for 1 / 4 of the total height of the second water tank.

7. A radiant floor water mixing device according to claim 6, characterized in that: The water inlet of the cooling pipeline of the first water tank is arranged at the top of the first water tank, the water inlet of the return pipeline of the first water tank is arranged at 1 / 2 of the total height of the first water tank, and the water outlet of the water outlet pipeline of the first water tank is arranged at 1 / 3 of the total height of the first water tank; the water outlet of the sewage pipeline of the first water tank is arranged at the bottom of the first water tank, and the water outlet of the sewage pipeline of the second water tank is arranged at the bottom of the second water tank; the radiant floor water mixing device also includes a shell alarm device arranged on the outside of the water outlet pipeline of the first water tank, and the alarm control input end of the shell alarm device is communicatively connected with the alarm control output end of the controller; the shell alarm device includes a shell and a manual flow regulating valve arranged inside the shell for adjusting the total flow of the water outlet pipeline of the first water tank.

8. The radiant floor water mixing device according to claim 1, characterized in that: A first insulation layer is disposed outside the first water tank, and a second insulation layer is disposed outside the second water tank. Both the first insulation layer and the second insulation layer are polyurethane foam insulation layers.

9. The radiant floor water mixing device according to claim 7, characterized in that: The shell alarm device also includes an alarm display screen, an alarm light, an input module, and an adjustment module arranged inside the shell. The alarm data input end of the alarm display screen is communicatively connected to the alarm data output end of the controller, the alarm light is electrically connected to the alarm control end of the controller, the setting data output end of the input module is communicatively connected to the setting data input end of the controller, and the adjustment data output end of the adjustment module is communicatively connected to the adjustment data input end of the controller.

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