Distributed water control hub

Abstract

The utility model relates to the technical field of water control hubs, in particular to a distributed water control hub which comprises a ground radiation coil, a water supply pump is arranged on the ground radiation coil, the distributed water control hub further comprises a distribution section, an upstream cavity and a downstream cavity are arranged in the distribution section at intervals, and the upstream cavity and the downstream cavity are communicated through a Venturi throat pipe. The ground radiation coil pipe is provided with a first communicating pipe communicated with the upstream chamber and a second communicating pipe communicated with the narrowest part of the venturi throat pipe, the second communicating pipe is provided with a proportioning valve for controlling the flow of the second communicating pipe, and the ground radiation coil pipe is internally provided with a first temperature probe. The distributed water control hub is installed in each room, each room is independently adjusted, the control is accurate, pipe bundles and wire harnesses do not need to be gathered at one position, the installation is simple and convenient, and the construction cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water control hubs, and in particular to a distributed water control hub. Background Art

[0002] With the development of social economy and the improvement of people's living standards, people have put forward higher requirements for living conditions, which have gradually developed from the demand for applicable and safe buildings to the requirements for intelligence, comfort and health, especially the demand and concept of health have been deeply rooted in people's hearts. Therefore, the creation of a comfortable indoor environment has become increasingly important in the development of future buildings. The air source heat pump combined heat supply unit can heat in winter and cool in summer, which can meet the needs of both winter and summer seasons, while other heating equipment can only heat in winter, and air conditioning equipment needs to be installed for cooling in summer, which has great limitations.

[0003] At present, the dual supply is used, that is, the same cold and heat source is used, and fan coil cooling and floor radiant heating are used respectively, which is actually the use of two independent systems. If floor radiant cooling is used, there will be a risk of condensation on the ground. If fan coil heating is used, the effect of hot air floating up must be increased to blow the hot air downward to meet the heating needs.

[0004] In addition, in the prior art, due to the different temperature requirements of each room, different equipment in each room has different requirements for water volume and water temperature during heat pump heating / cooling. However, they are currently concentrated in one place for allocation, and it is impossible to accurately control each device. Only the most unfavorable branch can be taken into account to cover the most basic hydraulic requirements, and the best effect cannot be achieved. Utility Model Content

[0005] The utility model aims to provide a distributed water control hub to solve the problem in the prior art that the air source heat pump combined heat supply unit cannot perform accurate temperature control on the equipment in each room.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A distributed water control hub includes a ground radiation coil, a water supply pump is arranged on the ground radiation coil, and a distribution section, in which an upstream chamber and a downstream chamber are arranged at intervals, and the upstream chamber and the downstream chamber are connected through a venturi throat; the ground radiation coil is provided with a first connecting pipe connected to the upstream chamber, and a second connecting pipe connected to the narrowest part of the venturi throat, the second connecting pipe is provided with a proportional regulating valve for controlling the flow of the second connecting pipe, and a first temperature probe is arranged in the ground radiation coil.

[0008] A further technical solution is to further include a fan coil unit, wherein both ends of the fan coil unit are respectively connected to the upstream chamber and the narrowest part of the venturi throat.

[0009] A further technical solution is that a humidity sensor is installed on the air inlet side of the fan coil unit.

[0010] A further technical solution is that both ends of the distribution section are provided with main water pipes connected with the upstream chamber and the downstream chamber.

[0011] A further technical solution is that a second temperature probe is arranged on the main water pipe, and a third temperature probe is arranged at the position where the coil of the fan coil unit is connected to the narrowest part of the venturi throat.

[0012] A further technical solution is that two first temperature probes are provided, the two first temperature probes are arranged at intervals, and the first connecting tube and the second connecting tube are arranged between the two first temperature probes.

[0013] A further technical solution is to further include a controller and an operation panel which are communicatively connected, and the first temperature probe and the proportional control valve are both communicatively connected to the controller.

[0014] Compared with the prior art, the utility model has at least one of the following beneficial effects: 1. The distributed water control hub of the utility model is installed in each room, and each room is independently adjusted, with precise control, no need to gather the pipe harness in one place, easy installation, and greatly reducing the project cost; 2. The water supply pump can make the water in the radiation coil circulate internally, which can play a role in uniformly adjusting the indoor temperature. With the help of the venturi throat to adjust the flow rate to produce the pressure difference, the water in the upstream chamber can enter the radiation coil, and the water in the second connecting pipe will enter the venturi throat, so that new chilled water or hot water can be continuously added to the radiation coil to keep the required temperature of the radiation coil; 3. By setting the first temperature probe and the proportional regulating valve, the temperature in the radiation coil can be monitored, and the switch ratio of the proportional regulating valve can be adjusted according to the temperature demand, so as to control the flow of chilled water or hot water entering the radiation coil from the first connecting pipe, and play a role in temperature control. Solve the problem that the air source heat pump combined supply unit in the prior art cannot accurately control the temperature of the equipment in each room. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of a distributed water control hub of the utility model.

[0016] Figure 2 for Figure 1 A partial enlarged schematic diagram of the area marked A in the middle.

[0017] Icons: 1-ground radiation coil, 2-water supply pump, 3-distribution section, 4-upstream chamber, 5-downstream chamber, 6-Venturi throat, 7-first connecting pipe, 8-second connecting pipe, 9-proportional control valve, 10-first temperature probe, 11-fan coil, 12-humidity sensor, 13-main water pipe, 14-second temperature probe, 15-third temperature probe, 16-controller, 17-operation panel. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] Figure 1 to Figure 2 Shown is an embodiment of the utility model.

[0020] Embodiment 1:

[0021] like Figure 1 , 2 As shown, a distributed water control hub includes a ground radiation coil 1, a water supply pump 2 is arranged on the ground radiation coil 1, and a distribution section 3, an upstream chamber 4 and a downstream chamber 5 are arranged in the distribution section 3, and the upstream chamber 4 and the downstream chamber 5 are connected through a venturi throat 6; the ground radiation coil 1 is provided with a first connecting pipe 7 connected to the upstream chamber 4, and a second connecting pipe 8 connected to the narrowest part of the venturi throat 6, and the second connecting pipe 8 is provided with a proportional regulating valve 9 for controlling the flow of the second connecting pipe 8, and a first temperature probe 10 is arranged in the ground radiation coil 1. The distributed water control hub of the utility model is installed in each room, and each room is adjusted independently, with precise control, no need to gather the pipe and wire harness in one place, easy installation, and greatly reducing the project cost. The water supply pump 2 can make the water in the radiation coil circulate internally, which can play a role in uniformly regulating the indoor temperature. The venturi throat 6 is used to adjust the flow rate to produce a pressure difference, so that the water in the upstream chamber 4 can enter the radiation coil, and the water in the second connecting pipe 8 will enter the venturi throat 6, so that new chilled water or hot water can be continuously added to the radiation coil to keep the ground radiation coil 1 at the required temperature. By setting the first temperature probe 10 and the proportional control valve 9, the temperature in the radiation coil can be monitored, and the switching ratio of the proportional control valve 9 can be adjusted according to the temperature requirements, so as to control the flow of chilled water or hot water entering the radiation coil from the first connecting pipe 7, which plays a role in temperature control. It solves the problem in the prior art that the air source heat pump dual-generation unit cannot accurately control the temperature of the equipment in each room.

[0022] It also includes a fan coil 11, and the two ends of the coil of the fan coil 11 are respectively connected to the upstream chamber 4 and the narrowest part of the venturi throat 6. The fan coil 11 includes a fan and a coil arranged on one side of the fan. The connection method at both ends of the coil can make the water in the coil flow continuously from the upstream chamber 4 to the narrowest part of the venturi throat 6. When heating, the air is blown through the coil of the fan coil 11 to heat the air, and the heating effect is faster. Moreover, by adjusting the speed of the fan, a windless feeling can be achieved. When cooling, when the air passes through the coil, the water vapor in the air will condense into water droplets, which plays a role in dehumidifying the air and can quickly reduce the temperature of the air, so as to avoid the formation of dew drops due to the low ground temperature.

[0023] A humidity sensor 12 is installed on the air inlet side of the fan coil 11. By setting the humidity sensor 12, the humidity of the air before passing through the coil, that is, the indoor humidity, can be monitored, so that it can be determined whether dehumidification needs to be continued according to demand.

[0024] Embodiment 2:

[0025] On the basis of Example 1, main water pipes 13 connected to the upstream chamber 4 and the downstream chamber 5 are provided at both ends of the distribution section 3. The main water pipes 13 can continuously flow the heated or cooled water to the distribution section 3, so that the distribution section 3 can be distributed to different rooms for use.

[0026] A second temperature probe 14 is provided on the main water pipe 13, and a third temperature probe 15 is provided at the position where the coil of the fan coil 11 is connected to the narrowest part of the venturi throat 6. The water temperature in the main water pipe 13 can be monitored by the second temperature probe 14, and multiple temperature probes can be distributed to monitor the water temperature of the main water pipe 13 in different areas, so as to adjust the heating or cooling power according to different positions. The temperature change of the coil can be monitored by the third temperature probe 15.

[0027] Two first temperature probes 10 are provided, and the two first temperature probes 10 are arranged at intervals, and the first connecting pipe 7 and the second connecting pipe 8 are arranged between the two first temperature probes 10. The two first temperature probes 10 can monitor the temperatures at the head and tail positions, so as to control the switching ratio of the proportional control valve 9 according to the temperature difference between the two positions to adjust the temperature.

[0028] It also includes a controller 16 and a control panel 17 that are connected in communication. The first temperature probe 10 and the proportional regulating valve 9 are both connected in communication with the controller 16. By setting the controller 16, the on / off ratio of the regulating proportional valve can be controlled by means of some built-in programs, and the on / off ratio of the regulating proportional switch can also be manually controlled by the control panel 17. The present invention modulates the water temperature sent to the ground radiation coil 1 according to the indoor air humidity to be slightly higher than the water temperature corresponding to the room temperature dew point, and the fan coil 11 is used for cooling and dehumidification. As the humidity continues to decrease, the water temperature sent to the ground radiation coil 1 will continue to decrease until the set room temperature, and the fan coil cooling and dehumidification wind speed is low and slow, so as to achieve windless cooling. Heating can be carried out according to the ground radiation heating. Close linkage control of humidity, temperature and wind speed. A water control hub is installed in each room. When the hot and cold water in the main channel flows through the distribution section 3, the volume in the upstream chamber 4 is expanded, the flow rate is slowed down, the pressure is increased, and a negative pressure is formed in the venturi throat 6, and sufficient positive and negative pressure differences are formed between the upstream chamber 4 and the downstream chamber 5 to form a water circulation power. During dehumidification, the water in the upstream chamber 4 of the distribution section 3 passes through the coil in the fan coil 11 for heat exchange, and at the same time, the fan output air volume of the fan coil 11 is adjusted to cool and dehumidify the air on the surface of the heat exchanger. A humidity sensor 12 is installed at the air inlet of the fan coil 11 to monitor and send the signal to the controller 16. After being processed by the controller 16, the fan air volume of the fan coil 11 is modulated to allow the air flowing through the coil to be moderately dehumidified. The embedded Venturi throat 6 is used to convert the circulation power using the water flow power, which is energy-saving and adaptable. By throttling the water flow rate after the circulation of the ground radiation coil 1, the new water volume of the circulation loop is adjusted, that is, the temperature is adjusted without changing the flow rate. The temperature difference between the head and tail of the pipeline is small, the surface temperature field is more uniform, and the dew point can be approached more closely during cooling, and the cooling is faster. By adjusting the fan air volume of the fan coil 11, the dehumidification can be made more thorough, the wind speed at the air outlet can be controlled to be lower, and there is no wind feeling. The humidity signals in each area are used to adjust the cooling water temperature in real time, effectively preventing condensation on the surface and achieving rapid cooling.

[0029] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A distributed water control hub, comprising a ground radiation coil (1), wherein a water supply pump (2) is arranged on the ground radiation coil (1), characterized in that: The invention also comprises a distribution section (3), wherein an upstream chamber (4) and a downstream chamber (5) are arranged in the distribution section (3), and the upstream chamber (4) and the downstream chamber (5) are connected via a venturi throat (6); the ground radiation coil (1) is provided with a first connecting pipe (7) connected to the upstream chamber (4), and a second connecting pipe (8) connected to the narrowest part of the venturi throat (6); the second connecting pipe (8) is provided with a proportional regulating valve (9) for controlling the flow of the second connecting pipe (8); and the ground radiation coil (1) is provided with a first temperature probe (10).

2. A distributed water control hub according to claim 1, characterized in that: It also includes a fan coil unit (11), wherein two ends of the fan coil unit (11) are respectively connected to the upstream chamber (4) and the narrowest part of the Venturi throat (6).

3. A distributed water control hub according to claim 2, characterized in that: A humidity sensor (12) is installed on the air inlet side of the fan coil unit (11).

4. A distributed water control hub according to claim 2, characterized in that: Both ends of the distribution section (3) are provided with main water pipes (13) which are connected to the upstream chamber (4) and the downstream chamber (5).

5. A distributed water control hub according to claim 4, characterized in that: A second temperature probe (14) is provided on the main water pipe (13), and a third temperature probe (15) is provided at a location where the coil of the fan coil (11) is connected to the narrowest part of the venturi throat (6).

6. A distributed water control hub according to claim 1, characterized in that: The number of the first temperature probes (10) is two, the two first temperature probes (10) are arranged at an interval, and the first connecting tube (7) and the second connecting tube (8) are arranged between the two first temperature probes (10).

7. A distributed water control hub according to claim 1, characterized in that: It also includes a controller (16) and a control panel (17) which are communicatively connected, and the first temperature probe (10) and the proportional control valve (9) are both communicatively connected to the controller (16).

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