CN214949487U

CN214949487U - Integrated control device of geothermal system and radiation air-conditioning system

Info

Publication number: CN214949487U
Application number: CN202121213707.2U
Authority: CN
Inventors: 武振兴
Original assignee: Jinmao Green Building Technology Co Ltd
Current assignee: Jinmao Green Building Technology Co Ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-11-30
Anticipated expiration: 2031-06-01

Abstract

The application provides a geothermal system and radiation air conditioning system's integrated control device, including plate heat exchanger, water supply valve, return water valve, water supply end tee bend joint and return water end tee bend joint. The water inlet of the water supply valve is connected with a water source, and the water outlet of the water supply valve is connected with the primary water inlet of the plate heat exchanger; a water inlet of the water return valve is connected with a primary water outlet of the plate heat exchanger; a first interface of the water supply end tee joint is connected with a secondary water outlet of the plate heat exchanger, a second interface of the water supply end tee joint is connected with an inlet of a water channel of the radiation air-conditioning system, and a third interface of the water supply end tee joint is connected with an inlet of a water channel of the geothermal system; and a first interface of the return water end tee joint is connected with a secondary water inlet of the plate heat exchanger, a second interface of the return water end tee joint is connected with an outlet of a waterway of the radiation air-conditioning system, and a third interface of the return water end tee joint is connected with an outlet of the waterway of the geothermal system. Above scheme, waterway simple structure, primary water circulation and secondary water circulation are independent each other, can realize the maximize utilization of water resource.

Description

Integrated control device of geothermal system and radiation air-conditioning system

Technical Field

The application relates to the technical field of temperature control, in particular to an integrated control device of a geothermal system and a radiation air-conditioning system.

Background

With the improvement of living standard of people, an air conditioning system form of spreading cold dissipating devices (such as capillary networks, cold radiation plates and the like) in indoor roofs or walls for cooling in summer is widely applied, the air conditioning system is called as a radiation air conditioning system, and the system has the characteristics of high comfort level and high energy saving performance when cooling in summer. However, when the radiation air-conditioning system heats in winter, the indoor upper space has high temperature and the indoor lower space has low temperature, and the radiation air-conditioning system does not meet the thermal comfort requirement of human bodies. Therefore, in order to improve the comfort level, a geothermal system is more suitable for indoor heating in winter, namely a heat dissipation device embedded in the floor is used for heating so as to meet the requirement of human body temperature comfort with a cool foot heating head.

At present, some families or office areas are provided with the two temperature regulating systems at the same time, but the two systems need to be controlled independently, and pipelines are arranged independently, so that the structure simplification and the resource saving are not facilitated.

Disclosure of Invention

The embodiment of the application aims to provide an integrated control device of a geothermal system and a radiant air-conditioning system, so as to solve the problems caused by independent arrangement and independent control of the radiant air-conditioning system and a floor heating system in the prior art.

In order to solve the above technical problem, in some embodiments of the present invention, an integrated control device for a geothermal system and a radiant air conditioning system includes a plate heat exchanger, a water supply valve, a water return valve, a water supply end three-way joint, and a water return end three-way joint, wherein:

a water inlet of the water supply valve is connected with a water source, and a water outlet of the water supply valve is connected with a primary water inlet of the plate heat exchanger; a water inlet of the water return valve is connected with a primary water outlet of the plate heat exchanger;

a first interface of the water supply end tee joint is connected with a secondary water outlet of the plate heat exchanger, a second interface of the water supply end tee joint is connected with an inlet of a water channel of a radiation air-conditioning system, and a third interface of the water supply end tee joint is connected with an inlet of a water channel of a floor heating system; and a first interface of the return water end tee joint is connected with a secondary water inlet of the plate heat exchanger, a second interface of the return water end tee joint is connected with an outlet of a water channel of the radiation air-conditioning system, and a third interface of the return water end tee joint is connected with an outlet of a water channel of the floor heating system.

Some embodiments provide an integrated control device of a geothermal system and a radiant air conditioning system, further comprising a flow regulating valve:

the flow regulating valve is arranged between the water supply valve and a primary water inlet of the plate heat exchanger.

Some embodiments provide an integrated control device of a geothermal system and a radiant air conditioning system, further comprising an integrated controller:

the flow regulating valve is an electric control regulating valve; and the first output end of the integrated controller is connected with the controlled end of the flow regulating valve, and the flow regulating valve is regulated according to the control signal output by the integrated controller.

Some embodiments provide an integrated control device of a geothermal system and a radiant air conditioning system, further comprising a water pump:

the water pump is arranged between a secondary water outlet of the plate heat exchanger and a first connector of the water supply end tee joint.

In some embodiments, the integrated control device of the geothermal system and the radiant air-conditioning system is provided, the water pump is an electrically controlled water pump, a controlled end of the water pump is connected to the second output end of the integrated controller, and the water pump is adjusted according to a control signal output by the integrated controller.

Some embodiments provide an integrated control device of a geothermal system and a radiant air conditioning system, further comprising a water replenishing valve:

and the inlet of the water replenishing valve is communicated with a water source, and the outlet of the water replenishing valve is communicated with the secondary water inlet of the plate heat exchanger.

In some embodiments, the geothermal system and the radiant air conditioning system are integrated, the water replenishing valve is an electromagnetic valve, a controlled end of the electromagnetic valve is connected to the third output end of the integrated controller, and the electromagnetic valve is adjusted according to a control signal output by the integrated controller.

Some embodiments provide an integrated control device of a geothermal system and a radiant air conditioning system, further comprising a pressure sensor:

the pressure sensor is arranged in a circulating water path between a secondary water inlet and a secondary water outlet of the plate heat exchanger, and is used for detecting a pressure value of the secondary water circulating water path and sending the pressure value to the centralized controller;

the integrated controller is used for controlling the electromagnetic valve to be opened when the pressure value is smaller than a set pressure lower limit value, and the integrated controller is used for controlling the electromagnetic valve to be closed when the pressure value is larger than a set pressure upper limit value.

Some embodiments provide an integrated control apparatus of a geothermal system and a radiant air conditioning system, further comprising an expansion tank:

the expansion tank is arranged between the second joint of the water supply end tee joint and the inlet of the water channel of the radiation air-conditioning system or between the third joint of the water supply end tee joint and the inlet of the water channel of the floor heating system.

Some embodiments provide an integrated control device of a geothermal system and a radiant air conditioning system, further comprising at least one temperature controller:

each temperature controller is arranged in a room and used for detecting a difference value between a current temperature value and a set target temperature value of the corresponding room and sending the difference value to the centralized controller;

and the integrated controller determines a control signal for controlling the flow regulating valve according to the sum of the difference values sent by all the temperature controllers.

Compared with the prior art, the technical scheme provided by the application at least has the following beneficial effects: with radiation air conditioning system water route and geothermal system water route integration structure as an organic whole carry out centralized control, part primary water and secondary water through plate heat exchanger, make the secondary water not receive the influence of factors such as primary water system pressure, quality of water, applicable in the great application scene of building height, scheme water route simple structure in this application, and can realize the maximize utilization of water resource.

Drawings

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

FIG. 1 is a schematic structural diagram of an integrated control device for a geothermal system and a radiant air conditioning system according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an integrated control device for a geothermal system and a radiant air conditioning system according to another embodiment of the present disclosure;

FIG. 3 is a block diagram illustrating a control portion of an integrated control device for a geothermal system and a radiant air conditioning system according to another embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an integrated control device of a geothermal system and a radiant air conditioning system according to an embodiment of the present application;

fig. 5 is a block diagram illustrating an integrated control portion of a geothermal system and a radiant air conditioning system according to another embodiment of the present disclosure.

Detailed Description

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of description of the present application, and do not indicate or imply that the device or component being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The embodiment provides an integrated control device of a geothermal system and a radiation air-conditioning system, which comprises a plate heat exchanger 101, a water supply end three-way joint 102, a water return end three-way joint 103, a water supply valve 104 and a water return valve 105, as shown in fig. 1. Wherein, the water inlet of the water supply valve 104 is connected with a water source, and the water outlet of the water supply valve 104 is connected with the primary water inlet A1 of the plate heat exchanger 101; the water inlet of the water return valve 105 is connected with a primary water outlet B1 of the plate heat exchanger 101, and the output of the water return valve 105 is primary water return water. A first interface of the water supply end three-way joint 102 is connected with a secondary water outlet A2 of the plate heat exchanger 101, a second interface thereof is connected with an inlet of a water path 200 of a radiation air-conditioning system, and a third interface thereof is connected with an inlet of a water path 300 of a geothermal system; and a first interface of the water return end three-way joint 103 is connected with a secondary water inlet B2 of the plate heat exchanger 101, a second interface thereof is connected with an outlet of a water path 200 of the radiation air-conditioning system, and a third interface thereof is connected with an outlet of a water path 300 of the geothermal system.

The flow of the primary and secondary water is shown in figure 1 in the direction of the arrows, where:

the primary water operation process comprises the following steps: and the primary water passes through the water supply valve → the plate heat exchanger → the water return valve to complete the whole primary water operation process.

The secondary water flow comprises the following steps: secondary water return → plate heat exchanger → secondary water supply → split into two water paths (1 path for the water path 200 of the radiation air-conditioning system, 1 path for the water path 300 of the geothermal system) → radiation of the radiation air-conditioning system and radiation of the geothermal system → 2 paths of water convergence to form 1 path of water → secondary water return, and the whole secondary water operation process is completed.

Above scheme, integrate radiation air conditioning system water route 200 and geothermal system water route 300 structure as an organic whole and carry out centralized control, part primary water and secondary water through plate heat exchanger 101, make the secondary water not receive the influence of factors such as primary water system pressure, quality of water, applicable in the great application scene of building height, scheme water route simple structure in this application, and can realize the maximize utilization of water resource, solved on the actual project because the building height arouses that end equipment bears the pressure too big, lead to leaking and the short problem of pipeline life. And because the primary water circulation and the secondary water circulation are mutually independent, the secondary water system adopts independent water supplement, and the water quality of the system is ensured. Because the radiation air-conditioning system water path 200 and the geothermal system water path 300 are controlled in a centralized manner, the device provided by the application can not only realize the control of the geothermal system, but also realize the control of the radiation air-conditioning system, and can realize the purpose of mutual auxiliary energy supply of the two systems.

In some aspects, as shown in fig. 2, the integrated control device of a geothermal system and a radiant air conditioning system may further include a flow regulating valve 107, and the flow regulating valve 107 is disposed between the water supply valve 104 and the primary water inlet a1 of the plate heat exchanger 101. When the opening degree of the flow rate control valve 107 is changed, the amount of the primary water entering the plate heat exchanger 101 can be adjusted, and the heat exchange efficiency in the plate heat exchanger 101 can be adjusted. Preferably, referring to fig. 3, the above apparatus further comprises an integrated controller 400, wherein the flow regulating valve 107 is an electrically controlled regulating valve; a first output end of the centralized controller 400 is connected to a controlled end of the flow control valve 107, and the flow control valve 107 performs adjustment according to a control signal output by the centralized controller 400. In this scheme, through installing flow control valve 107 on the water supply end of primary water, realize the flow balance function of water supply end, flow control valve 107 can preset the maximum flow that flows through this valve when using, after setting for maximum flow, flow control valve 107 carries out the preconditioning, under the maximum flow that sets for, according to the temperature that secondary water supply needs carry out the aperture fine setting of flow control valve 107, and then adjust the flow of primary water, realize the required water supply temperature of secondary water. The heat exchange function of the plate heat exchanger 101 can realize that the heat of the primary water is transferred to the secondary water, and the primary water flow of the specific primary water inlet can be adjusted according to the temperature requirement of the secondary water, which is not described in detail in the scheme.

As shown in fig. 2, the integrated control device for a geothermal system and a radiant air conditioning system in the above solution may further include a water pump 106, where the water pump 106 is disposed between the secondary water outlet a2 of the plate heat exchanger 101 and the first port of the water supply end three-way joint 102. In the scheme, the circulating water pump 106 is arranged in the secondary water circulating water path, so that water circulation of secondary water between the radiation air-conditioning system water path 200, the geothermal system water path 300 and the plate heat exchanger 101 is facilitated, and cold or heat is conveyed to the heat radiating parts of the radiation air-conditioning system water path 200 and the geothermal system water path 300. Preferably, the water pump 106 is an electrically controlled water pump, a controlled end of the water pump 106 is connected to the second output end of the centralized controller 400, and the water pump 106 is adjusted according to a control signal output by the centralized controller 400. In this scheme, the opening and closing of the water pump 106 may be automatically controlled by the integrated controller 400, the integrated controller 400 may control the water pump 106 according to a control instruction input by a user, and the integrated controller 400 may also automatically control the opening and closing of the water pump 106 according to the operating states of the heat dissipation components in the water path 200 of the radiation air-conditioning system and the water path 300 of the geothermal system.

In some embodiments, as shown in fig. 2 and 3, the integrated control device of the geothermal system and the radiant air conditioning system may further include a water replenishing valve 108, an inlet of the water replenishing valve 108 is communicated with a water source, and an outlet of the water replenishing valve 108 is communicated with the secondary water inlet B2 of the plate heat exchanger 101. In fact, the effect of moisturizing valve 108 is for the moisturizing of secondary hydrologic cycle water route, therefore its export as long as insert the secondary hydrologic cycle water route can, insert secondary water import B2 with it in this scheme and realize comparatively easily, directly can accomplish through a three way connection. Preferably, the water replenishing valve 108 is an electromagnetic valve, a controlled end of the electromagnetic valve is connected with a third output end of the integrated controller 400, and the electromagnetic valve is adjusted according to a control signal output by the integrated controller 400. According to the scheme, the water replenishing valve 108 is arranged in the water path structure, the water replenishing valve 108 is an electric valve and is controlled by the integrated controller 400, and the water replenishing valve is opened when the secondary water circulation system needs water replenishing, so that the pressure of the secondary water circulation system is maintained within a certain range. On the basis, the integrated control device of the geothermal system and the radiant air-conditioning system preferably further comprises a pressure sensor 111, wherein the pressure sensor 111 is arranged in a circulating water path between a secondary water inlet B2 and a secondary water outlet A2 of the plate heat exchanger 101, and is used for detecting a pressure value of the secondary water circulating water path and sending the pressure value to the integrated controller 400; the centralized controller 400 is configured to control the solenoid valve to open when the pressure value is smaller than a set pressure lower limit value, and the centralized controller 400 is configured to control the solenoid valve to close when the pressure value is larger than a set pressure upper limit value. The pressure of the secondary water circulation water path is detected by arranging the pressure sensor 111 in the secondary water circulation water path, if the pressure is lower than the set pressure lower limit, the water replenishing valve 108 is opened, and when the pressure is higher than the set pressure upper limit, the water replenishing valve 108 is closed, so that the pressure of a secondary water system can be accurately controlled to be maintained within a certain range.

The integrated control device for a geothermal system and a radiant air-conditioning system in the above scheme may further include at least one temperature controller 112, wherein each temperature controller 112 is disposed in a room, and is configured to detect a difference between a current temperature value and a set target temperature value of the corresponding room and send the difference to the centralized controller 400; the centralized controller 400 determines the control signals for controlling the water pump 106 and the flow control valve 107 according to the sum of the difference values sent by all the temperature controllers 112. In addition, when the opening degree value of each valve is controlled, the temperature sensor group 500 may be disposed in the primary water circulation water path and the secondary water circulation water path, the temperature sensor group 500 is used to detect the water temperatures at different positions and send the detection result to the integrated controller 400, and the integrated controller 400 adjusts the opening degree of each valve according to the detection result of the temperature sensor group 500 and a preset temperature adjustment model. Specifically, the device can be provided with 6 temperature sensors, which are respectively: the secondary water supply temperature sensor 109, the secondary water return temperature sensor 113, the primary water supply temperature sensor 114, the primary water return temperature sensor 115, and the water pump motor temperature sensor and the water pump body temperature sensor are used for detecting the temperature of the whole device.

Fig. 4 shows a specific implementation of the integrated control device for geothermal system and radiant air-conditioning system, which may further include an expansion tank 110, wherein the expansion tank 110 is disposed between the second joint of the water supply end tee joint 102 and the inlet of the water path 200 of the radiant air-conditioning system or between the third joint of the water supply end tee joint 102 and the inlet of the water path 300 of the geothermal system. In this scheme, through setting up expansion tank 110, can stabilize the water route pressure in secondary hydrologic cycle water route, after the aqueous medium in the secondary hydrologic cycle water route is heated the inflation, the air in the unnecessary aqueous medium can compression expansion tank 110, makes the secondary hydrologic cycle water route can not the superpressure. Similarly, after the water medium in the secondary water circulation water path is cooled and contracted, the excess water medium is released from the expansion tank 110, so that the pressure of the secondary water circulation water path is not too low, and the problem of pressure fluctuation caused by expansion caused by heat and contraction caused by cold of the water medium in the secondary water circulation water path is solved.

As shown in fig. 4, in the water passage 200 of the radiation air-conditioning system, a first gas cylinder 201 is provided at the secondary water supply end of the secondary water circulation water passage, and a second gas cylinder 207 is provided at the secondary water return end of the secondary water circulation water passage. The air collecting cylinder can be arranged at the highest position of the equipment, the diameter of the air collecting cylinder is preferably 1-5 times larger than the pipe diameter of the secondary water circulation water path, when the aqueous medium flows through the air collecting cylinder, the air in the aqueous medium is separated out from the aqueous medium and gathered in the air collecting cylinder by reducing the flow rate of the aqueous medium, furthermore, the uppermost end of the first air collecting cylinder 201 is provided with a first automatic air release valve 203, the uppermost end of the second air collecting cylinder 207 is provided with a second automatic air release valve 205, the air discharged by the aqueous medium is finally discharged through the air release valve, and the air in the secondary water circulation water path is completely discharged, so that the secondary water circulation water path has higher stability and heat exchange efficiency.

Further, in the above scheme, the radiation air-conditioning system water path 200 is configured with the capillary water collector 206 and the ground water separator 208, and the geothermal system water path 300 is configured with the ground water collector 301 and the ground water separator 303. The capillary water collector 206 is provided with a first group of manual shutoff valves 204, the capillary water collector 208 is provided with a first group of thermoelectric valves 202, the floor heating water collector 301 is provided with a second group of manual shutoff valves 302, and the floor heating water collector 303 is provided with a second group of thermoelectric valves 304. An electric valve or a manual shut-off valve is respectively arranged on the water separator and the water collector, the thermoelectric valves can be controlled by the integrated controller 400 in a centralized manner, and the thermoelectric valves on the loop are controlled to enable the temperature of the room to reach the target temperature set by the user according to the current temperature value in the room and the set target temperature value input by the user. The configuration shown in the figure, the water separator circuit and the water collector circuit can be adjusted according to the requirements, and the schematic diagram is 9 circuits, and can actually support 1 to 50 circuits.

As shown in fig. 5, data transmission is realized between different thermostats 112 or between the thermostats 112 and the centralized controller 400 through the communication bus 20. The integrated controller 400 can control the operation mode of each temperature controller 112, and in particular, may select a main temperature controller among all the temperature controllers 112, and the main temperature controller may also set the operation mode of other temperature controllers. Therefore, the scheme has two ways to set the operation mode of the temperature controller in each room. For example, the integrated controller 400 may set the total number of thermostats and the number of specific thermostats. The communication addresses of the temperature controllers are set from 1, the last temperature controllers are set as special temperature controllers (specific data needs to be determined according to field conditions), the special temperature controllers can be set in categories, if the special temperature controllers can be defined as not participating in comprehensive calculation of a centralized control system, defined as not participating in comprehensive calculation in summer and participating in comprehensive calculation in winter, defined as not participating in comprehensive calculation in winter and participating in comprehensive calculation in summer, and the like, the centralized controller 400 can also define the temperature controllers in all rooms to be used for controlling the number of the thermoelectric valves on the water separator and the water collector and the thermoelectric valves of corresponding loops, so that flexible configuration among the temperature controllers, the thermoelectric valves on the water separator and the water collector is realized.

It can be understood that, in the above solutions, the centralized controller 400 selects a PLC module or a single chip unit having a plurality of input terminals and a plurality of output terminals, which only needs to have a simple data receiving function, a function of storing an existing logical operation model, and a function of outputting a control signal. The various electric control valves related in the scheme can also be realized by directly purchasing products with corresponding functions from the market. The key point of the scheme of the application lies in that the radiation air-conditioning system water path 200 and the geothermal system water path 300 can be integrated into a whole to be integrally and centrally controlled, the control logic of the centralized controller 400 can be directly realized by adopting the existing control logic, and the centralized controller 400 can directly show the state of each valve to be controlled to a user by displaying a man-machine interaction interface mode, and the user can manually operate the centralized controller 400, thereby realizing the control of each valve. Each control signal output by the centralized controller 400 may be a logical electrical signal, for example, when the centralized controller 400 outputs a high level to the controlled end of the flow rate adjusting valve, the opening value of the flow rate adjusting valve is increased, and the flow rate is increased. When the controller 400 outputs a '0' signal to the controlled end of the fluid infusion valve, the fluid infusion valve is closed.

The scheme provided by the application realizes the integrated control of two sets of heat dissipation systems (radiation air conditioning systems and geothermal systems, such as capillary tubes and floor heating forms), and the two sets of heat dissipation systems can assist each other. Radiation air conditioning system and geothermal system wherein possesses branch family energy supply and branch family switch energy supply, can solve present heating system and have the system unbalance according to user's demand governing system temperature to indoor temperature, the extravagant problem of energy, the device in this scheme can also solve because the high reason of building height, the equipment pressure bearing that arouses is high, difficult problems such as system water quality receives water system influence once.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The utility model provides an integrated control device of geothermal system and radiation air conditioning system which characterized in that, includes plate heat exchanger, water supply valve, return water valve, water supply end tee bend joint and return water end tee bend joint, wherein:

2. The integrated control apparatus of a geothermal system and a radiant air conditioning system according to claim 1, further comprising a flow regulating valve:

3. The integrated control apparatus of a geothermal system and a radiant air conditioning system according to claim 2, further comprising an integrated controller:

4. The integrated control apparatus of a geothermal system and a radiant air conditioning system according to claim 3, further comprising a water pump:

5. The integrated control apparatus of a geothermal system and a radiant air conditioning system according to claim 4, wherein:

the water pump is an electric control water pump, a controlled end of the water pump is connected with the second output end of the integrated controller, and the water pump is adjusted according to a control signal output by the integrated controller.

6. The integrated geothermal system and radiant air conditioning system control device of claim 3, further comprising a water supplement valve:

7. The integrated control apparatus of a geothermal system and a radiant air conditioning system according to claim 6, wherein:

the water replenishing valve is an electromagnetic valve, a controlled end of the electromagnetic valve is connected with a third output end of the integrated controller, and the electromagnetic valve is adjusted according to a control signal output by the integrated controller.

8. The integrated control apparatus of a geothermal system and a radiant air conditioning system according to claim 7, further comprising a pressure sensor:

9. An integrated geothermal system and radiant air conditioning system control apparatus according to any one of claims 3 to 8, further comprising an expansion tank:

10. The integrated control apparatus of a geothermal system and a radiant air-conditioning system according to claim 9, further comprising at least one temperature controller: