Waterway control device, control system, and control method

Abstract

The application discloses a water route control device, a control system and a control method, and belongs to the technical field of three-constant system controllers, wherein the device comprises a shell and an upper cover, the shell and the upper cover are closed to form an internal containing cavity; a circuit board is arranged in the containing cavity, a water inlet flange joint is connected to the top plate of the shell, and an end portion of the water inlet flange joint in the containing cavity is connected with a pressure sensor; the pressure sensor is electrically connected with the circuit board, so as to feed back the detected water flow pressure data of the water route to the circuit board; the circuit board is electrically connected with a controller, a button and a hot point valve switch are arranged on the circuit board, the button is a power switch between the circuit board and the controller, and the controller adjusts the water flow of the water route by controlling the opening degree of the hot point valve. The device is placed at the water inlet of the capillary tube of each room, the hot point valve of the room needing temperature adjustment is opened, the pressure of the water route is fed back to the circuit board through the pressure sensor, and the controller adjusts the opening degree of the hot point valve to control the water flow.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of three-constant system controller, more particularly, to a water route control device, a control system and a control method. BACKGROUND

[0002] With the continuous maturity of the temperature and humidity independent control three-constant system technology, combined with its energy saving, comfort and other characteristics, the application scale of the three-constant system has been increasing in recent years. The three-constant system can control the room temperature and humidity according to the individual living comfort, and other advantages have attracted more and more attention.

[0003] There are also systems for temperature and humidity independent control in the prior art, for example, a full-house type air conditioning system for temperature and humidity independent control disclosed in the patent document with the application number 201710825714, which comprises a main circulating water route and a water source heat pump unit, a capillary tube unit and a house type fresh air unit arranged in each user; the main circulating water route is connected with a cold and heat source; the primary side of the water source heat pump unit in each user is connected with the main circulating water route to form a first heat exchange circulating loop, the capillary tube unit is connected with the secondary side of the water source heat pump unit to form a second heat exchange circulating loop, and the house type fresh air unit is connected with the secondary side of the water source heat pump unit to form a third heat exchange circulating loop, and the house type fresh air unit is connected with the air distribution box through the air supply pipe.

[0004] However, in actual operation, since the user can only control the system total switch, on the one hand, it will cause a lot of energy waste, on the other hand, it is impossible to locate the accurate position during maintenance, and the above factors hinder the further popularization and application of the three-constant system. Therefore, it is necessary to improve the independent control of the system for a single room. SUMMARY

[0005] 1. Technical problem to be solved by the application

[0006] The purpose of the present application is to overcome the deficiency that the three-constant system in the prior art cannot effectively control the temperature and humidity of a single room, and to provide a water route control device, a control system and a control method, which aims to detect and control the water route pressure and flow rate of an independent room, and then realize the control of the temperature and humidity of the independent room by the three-constant system.

[0007] 2. Technical scheme

[0008] In order to achieve the above purpose, the technical scheme provided by the present application is:

[0009] The water route control device of the present application comprises a shell and an upper cover, the shell and the upper cover form an internal containing cavity, an electric circuit board is arranged in the containing cavity, a water inlet flange joint is connected to the top plate of the shell, the end of the water inlet flange joint in the containing cavity is connected with a pressure sensor, the pressure sensor is electrically connected with the electric circuit board to feed back the detected water flow pressure data of the water route to the electric circuit board 40, the electric circuit board is electrically connected with a controller, a button and a hot spot valve switch are arranged on the electric circuit board, the button is a power switch between the electric circuit board and the controller, the controller adjusts the water flow of the water route by controlling the opening of the hot spot valve.

[0010] Further, a terminal row protection cover is inserted into the bottom plate of the shell.

[0011] Further, a plurality of first clamping grooves are arranged on the bottom plate of the shell to which the terminal row protection cover is inserted, for cooperating with first clamping claws on the terminal row protection cover.

[0012] Further, a plurality of second clamping grooves are arranged on the upper end of the shell, second clamping claws are arranged on the lower end of the upper cover, and the shell and the upper cover are detachably connected through the cooperation of the second clamping grooves and the second clamping claws.

[0013] Further, the shell comprises a first through hole for mounting the button.

[0014] Further, the shell comprises a second through hole for clamping the water inlet flange joint.

[0015] Further, the shell comprises a screw mounting hole which is symmetrically arranged along the radial direction of the second through hole.

[0016] Further, the water inlet flange joint and the pressure sensor are connected through an adhesive layer, and the adhesive layer is a liquid raw material tape layer.

[0017] Further, a fixing hole column is arranged on the inner wall of the shell, and a screw hole is arranged on the electric circuit board, and the electric circuit board is mounted on the fixing hole column through the screw hole.

[0018] Further, the outer side of the pressure sensor is wrapped with thermal insulation cotton.

[0019] In another aspect, the present application provides a water route control system, which comprises a heat pump, a water route control device and a capillary tube, the heat pump is used to output circulating water to the pipelines of each room, so that the water flows into the capillary tube, the water route control device is installed at the water inlet of the capillary tube, and the water route control device is the water route control device of any one of the above.

[0020] In a third aspect, the present application also provides a control method of a water route control system, the water route control system being the water route control system described above, comprising the following steps: a, turning on the heat pump; b, pressing the button to start the electrical connection between the circuit board and the controller; c, opening the hot point valve of the room requiring temperature adjustment; d, the pressure sensor feeding the detected water flow pressure data to the circuit board; e, the controller electrically connected with the circuit board adjusting the opening degree of the hot point valve according to the water flow pressure data to control the water flow of the water route.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the technical scheme provided by the present application has the following beneficial effects:

[0023] (1) The water route control device in the present application comprises a shell and an upper cover, and the shell and the upper cover enclose a containing cavity inside; a circuit board is arranged in the containing cavity; a water inlet flange joint is connected to the side plate of the shell, and the end of the water inlet flange joint located in the containing cavity is connected with a pressure sensor; the pressure sensor is electrically connected with the circuit board; the circuit board is electrically connected with a controller; a button and a hot point valve switch are arranged on the circuit board; the button is a switch between the circuit board and the controller; and the controller controls the on-off of the water route through the hot point valve switch. During the working process of the water route control system, the heat pump outputs circulating water to the pipelines of each room, so that each room reaches the expected temperature. The water route control device of the present application is placed at the water inlet of the capillary tube of each room, and the hot point valve of the room requiring temperature adjustment is opened, so that the water route can enter the capillary tube of the room. The pressure of the water route is fed back to the circuit board through the pressure sensor, and then the opening degree of the hot point valve is adjusted according to the feedback pressure data, so that the water route reaches the expected effect.

[0024] (2) The water route control device of the present application comprises a terminal row protection cover, which is located on the other side plate of the shell relative to the water inlet flange joint. The terminal row protection cover can prevent dust from falling into the water route control device, prevent dust from corroding the pressure sensor and the circuit board, and affect the accuracy of the algorithm of the circuit board. In addition, the pressure sensor is also wrapped with a layer of thermal insulation cotton to prevent the temperature difference between the water temperature of the pipeline and the indoor temperature from causing water droplets to drop on the circuit board from the pressure sensor, causing a short circuit. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is an exploded view of the structure of the water route control device;

[0026] Figure 2 It is a schematic view of the internal structure of the water route control device;

[0027] Figure 3 It is a top view of the internal structure of the water route control device;

[0028] Figure 4 Isometric view of a waterway control device Figure I ;

[0029] Figure 5 Isometric view of a waterway control device Figure II .

[0030] Explanation of reference numerals in the schematic view:

[0031] 10, housing; 101, first through hole; 102, second through hole; 103, screw mounting hole; 110, upper cover; 120, terminal row protection cover; 20, pressure sensor; 30, water inlet flange joint; 40, circuit board; 401, button. DETAILED DESCRIPTION

[0032] In order to further understand the content of the present application, the present application will be described in detail in conjunction with the drawings and examples.

[0033] The structures, proportions, sizes, etc. shown in the drawings of the present specification are merely used to cooperate with the content disclosed in the present specification, to be understood and read by those skilled in the art, and are not used to limit the limiting conditions that the present application can be implemented, so they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effect and purpose that the present application can produce, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "top", "bottom" and the like in the present specification are merely for the convenience of clear description, and are not used to limit the implementable range, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the implementable scope of the present application.

[0034] The waterway control system of the present embodiment realizes the regulation and control of the temperature and humidity of a single room in a three-constant system by detecting and controlling the water flow pressure and flow rate of the independent room in the three-constant system. The system comprises a heat pump, a waterway control device, and a capillary tube. The heat pump is used to output circulating water to the pipelines of each room, so that the water flows into the capillary tube. The waterway control device is installed at the water inlet of the capillary tube.

[0035] The control method of the waterway control system specifically comprises the following steps: a, turning on the heat pump; b, pressing the button 401 to start the electrical connection between the circuit board 40 and the controller; c, opening the hot point valve of the room that needs to be adjusted in temperature; d, the pressure sensor 20 feeds back the detected water flow pressure data to the circuit board 40; e, the controller electrically connected with the circuit board 40 adjusts the opening degree of the hot point valve according to the water flow pressure data, so as to control the water flow of the waterway.

[0036] The waterway control device therein, such as Figure 1As shown, the waterway control device includes a housing 10 and an upper cover 110, and the housing 10 and the upper cover 110 enclose an internal accommodating cavity. An electric circuit board 40 is arranged in the accommodating cavity, and a water inlet flange joint 30 is connected to the top plate of the housing 10 and is connected to a pressure sensor 20 at the end in the accommodating cavity. The pressure sensor 20 is electrically connected to the electric circuit board 40, and is used to transmit the water flow pressure data of the waterway of the independent room to the electric circuit board 40. The electric circuit board 40 is electrically connected to a controller, and a button 401 and a hot point valve switch are arranged on the electric circuit board 40. The button 401 is a power switch between the electric circuit board 40 and the controller, and the controller adjusts the water flow of the waterway by controlling the opening of the hot point valve.

[0037] Through the above arrangement, in the working process of the three-constant system, the heat pump outputs circulating water to the pipelines of each room, so that the room reaches the expected temperature. The waterway control device of the embodiment is connected to the water inlet of the capillary tube of each room through the water inlet flange joint 30, and the room that needs to be adjusted in temperature opens the hot point valve switch, so that the waterway can enter the capillary tube of the independent room. At this time, the pressure of the waterway is fed back to the electric circuit board 40 through the pressure sensor 20, and the controller electrically connected to the electric circuit board 40 adjusts the opening of the hot point valve according to the feedback pressure data, so that the water flow of the waterway reaches the expected effect, and finally realizes flexible control of the temperature and humidity of the independent room.

[0038] Considering the use environment of the waterway control device, dust and other impurities in the air are prevented from entering the inside of the device, causing corrosion to the pressure sensor 20 and the electric circuit board 40, and affecting the accuracy of the algorithm of the electric circuit board 40. As shown in Figure 3 and Figure 5 As shown, the waterway control device of the embodiment is inserted with a terminal row protection cover 120 on the bottom plate of the housing 10.

[0039] In order to make the terminal row protection cover 120 and the housing 10 fit tightly and be convenient to disassemble, preferably, a plurality of first clamping grooves are arranged on the bottom plate of the housing 10 which is inserted with the terminal row protection cover 120, and a plurality of first clamping claws corresponding to the positions of the first clamping grooves are arranged on the end of the terminal row protection cover 120 towards the housing 10. The housing 10 and the terminal row protection cover 120 are locked by the plurality of first clamping claws inserted into the plurality of first clamping grooves.

[0040] Similarly, a plurality of second clamping grooves are arranged on the upper end of each side plate of the housing 10, and a plurality of second clamping claws are arranged on the corresponding positions of the housing 10 close to the upper cover 110, and the housing 10 and the upper cover 110 are detachably connected through the cooperation of the second clamping grooves and the second clamping claws.

[0041] In order to facilitate the installation of the button 401, as shown in Figure 4As shown, a first through hole 101 is opened on the top plate of the housing 10 where the inlet flange joint 30 is located. The shape of the first through hole 101 is a square hole that matches the shape of the button 401, which helps to fix the button 401.

[0042] Similarly, the housing 10 also includes a second through hole 102, the size of which is the same as that of the inlet flange 30. After passing through the second through hole 102, the inlet flange 30 is snapped into the second through hole 102, and the other end of the inlet flange 30 away from the second through hole 102 is connected to the pressure sensor 20.

[0043] In this embodiment, an adhesive layer is provided between the inlet flange joint 30 and the pressure sensor 20, and the two are fixedly connected by the adhesive layer. Preferably, the adhesive layer can be a liquid PTFE tape layer. After one end of the inlet flange joint 30 is fixed to the pressure sensor 20 with liquid PTFE tape, the other end of the inlet flange joint 30 is fitted and connected to the second through hole 102.

[0044] To facilitate the fixing of the water control device to the ceiling of the room, screw mounting holes 103 are provided on the top plate of the housing 10. Preferably, the screw mounting holes 103 are provided radially symmetrically along the second through hole 102 to ensure the stability of the device installation.

[0045] In addition, such as Figure 2 As shown, the inner wall of the water circuit control device is also provided with fixing posts, and the circuit board 40 is provided with screw holes. The circuit board 40 is installed on the fixing posts by passing screws through the screw holes, which further enhances the stability of the device during use.

[0046] To prevent water droplets from forming on the pressure sensor 20 due to the temperature difference between the pipeline water and the room temperature, which could drip into the housing 10 and wet the circuit board 40, causing a short circuit, this embodiment wraps a layer of insulating cotton around the pressure sensor 20. This insulating cotton serves two purposes: firstly, it maintains the temperature difference between the pressure sensor 20 surface and the room temperature within a small range, preventing water droplets from forming on the pressure sensor 20 surface; secondly, when a small amount of water droplets do form on the pressure sensor 20 surface, the insulating cotton absorbs them, preventing them from dripping into the housing 10.

[0047] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A waterway control device, characterized by: It comprises a shell (10) and an upper cover (110), the shell (10) and the upper cover (110) form an internal containing cavity; The containing cavity is provided with a circuit board (40), the top plate of the shell (10) is connected with a water inlet flange joint (30), the end of the water inlet flange joint (30) in the containing cavity is connected with a pressure sensor (20); The pressure sensor (20) is electrically connected with the circuit board (40) to feed back the detected water flow pressure data of the water circuit to the circuit board (40); The circuit board (40) is electrically connected with a controller, the circuit board (40) is provided with a button (401) and a hot spot valve switch, the button (401) is a power switch between the circuit board (40) and the controller, wherein the controller is configured to control the opening of the hot spot valve according to the water flow pressure data fed back by the pressure sensor (20) to adjust the water flow of the water circuit.

2. The waterway control device of claim 1, wherein: The bottom plate of the shell (10) is inserted with a terminal strip protection cover (120).

3. A waterway control device according to claim 2, wherein: The bottom plate of the shell (10) inserted with the terminal strip protection cover (120) is provided with a plurality of first clamping grooves for cooperating with the first clamping claws on the terminal strip protection cover (120).

4. The waterway control device of claim 1, wherein: The upper end of the shell (10) is provided with a plurality of second clamping grooves, and the lower end of the upper cover (110) is provided with second clamping claws, and the shell (10) and the upper cover (110) are detachably connected through the cooperation of the second clamping grooves and the second clamping claws.

5. The waterway control device of claim 1, wherein: The shell (10) comprises a first through hole (101) for mounting the button (401).

6. The waterway control device of claim 1, wherein: The shell (10) comprises a second through hole (102) for clamping the water inlet flange joint (30).

7. A waterway control device according to claim 6, wherein: The shell (10) comprises a screw mounting hole (103) which is radially symmetrical to the second through hole (102).

8. The waterway control device of claim 1, wherein: The water inlet flange joint (30) and the pressure sensor (20) are connected through an adhesive layer, and the adhesive layer is a liquid raw material tape layer.

9. The waterway control device of claim 1, wherein: The inner wall of the shell (10) is provided with a fixed hole column, and the circuit board (40) is provided with a screw hole, and the circuit board (40) is installed on the fixed hole column through the screw hole.

10. The waterway control device of claim 1, wherein: The pressure sensor (20) is wrapped with thermal insulation cotton.

11. A waterway control system characterized by: It comprises a heat pump, a water circuit control device and a capillary tube, the heat pump is used to output circulating water to the pipelines of each room, so that the water flows into the capillary tube, and the water circuit control device is installed at the water inlet of the capillary tube; the water circuit control device is the water circuit control device of any one of claims 1-10.

12. A control method of a waterway control system, characterized by: The waterway control system of claim 11, comprising the following steps: a, turning on the heat pump; b, pressing the button (401) to start the electrical connection between the circuit board (40) and the controller; c, opening the hot point valve of the room requiring temperature adjustment; d, the pressure sensor (20) feeding back the detected water flow pressure data to the circuit board (40); e, the controller electrically connected with the circuit board (40) adjusting the opening degree of the hot point valve according to the water flow pressure data to control the water flow of the waterway.

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