Novel cogeneration control device

Abstract

The utility model belongs to the technical field of cogeneration, and particularly relates to a novel cogeneration control device which comprises a relay water tank, the top end of the relay water tank is communicated with a water inlet pipe, the middle of the water inlet pipe is communicated with an electric control three-way switching valve, and a water inlet elbow on the left side of the top end of the electric control three-way switching valve is communicated with a solar water heater. And one side of the bottom end of the relay water tank communicates with a water outlet pipe, the middle of the water outlet pipe communicates with a water outlet valve, and one side of the relay water tank is fixedly provided with a valve switching controller. According to the utility model, hot water in the solar water heater and the electric water heater can be flexibly used as required, and flexible switching is carried out through the electric control three-way switching valve to adjust the water temperature, so that the specific temperature of a heat exchange medium is adjusted; the relay water tank is arranged, the water temperature can be adjusted, water flow can be kept smooth, and the device is particularly suitable for being used by users in small units.

Description

Technical Field

[0001] The utility model relates to the technical field of combined heat and power generation, in particular to a novel combined heat and power generation control device. Background Art

[0002] Combined heat and power (CHP) has become a mature energy utilization technology in many countries and regions. Patent CN210041755U proposes a solar CHP control system, including a concentrating photovoltaic array, a heat medium tank, an adjustable pump device for a cold medium tank, and a control device. The control device can adjust the pumping flow of the adjustable pumping device so that the flow rate fed into the CPV array matches the heat exchange capacity of the CPV array, thereby maintaining a relatively stable temperature of the heat exchange medium flowing out of the CPV array. This avoids the use of large-sized heat tank media, thereby reducing system costs. Analysis reveals that this solar CHP control system has the following shortcomings: First, it cannot adjust the specific temperature of the delivered heat exchange medium; and second, it is not suitable for small-scale users, such as households. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies of the prior art, the present invention provides a novel cogeneration control device, which solves the problems raised in the above background technology.

[0005] (2) Technical solution

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A novel cogeneration control device includes a relay water tank, the top of which is connected to a water inlet pipe, the middle of which is connected to an electrically controlled three-way switching valve, the water inlet elbow on the left side of the top of the electrically controlled three-way switching valve is connected to a solar water heater, and the water inlet elbow on the right side of the top of the electrically controlled three-way switching valve is connected to an electric water heater, one side of the bottom of the relay water tank is connected to a water outlet pipe, and the middle of the water outlet pipe is connected to a water outlet valve;

[0008] A valve switching controller is fixedly installed on one side of the relay water tank, and the output end of the valve switching controller is electrically connected to the electrically controlled three-way switching valve. A thermal relay switch is fixedly installed on one side of the bottom end of the relay water tank, and the temperature measuring probe of the thermal relay switch extends to the bottom end of the inner cavity of the relay water tank. The output end battery cell of the thermal relay switch is connected to the valve switching controller.

[0009] Furthermore, a battery is fixedly installed on the side wall of the relay water tank, and the battery is electrically connected to the power supply end of the valve switching controller.

[0010] Furthermore, the relay water tank includes a bottom box, the front of the bottom box is fixedly connected to a transparent plastic cover by screws, and a sealing ring is embedded and connected between the bottom box and the transparent plastic cover.

[0011] Furthermore, the thermal relay switch is an XH-W3002 digital display adjustable temperature control switch.

[0012] Furthermore, a mounting ear hole is fixedly provided on the back side of the relay water tank.

[0013] (3) Beneficial effects

[0014] Compared with the existing technology, the present invention provides a new cogeneration control device with the following beneficial effects:

[0015] The utility model can flexibly use the hot water in the solar water heater and the electric water heater according to demand, and flexibly switch to adjust the water temperature through the electronically controlled three-way switching valve, thereby adjusting the specific temperature of the heat exchange medium and realizing the comprehensive and orderly use of multiple energy sources;

[0016] The utility model is provided with a relay water tank, which can not only adjust the water temperature but also keep the water flow smooth, and is particularly suitable for users of small units, such as families. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the exploded state of the main structure of the utility model;

[0018] Figure 2 This is a front sectional structural diagram of the utility model.

[0019] In the figure: 1. Relay water tank; 2. Water inlet pipe; 3. Electric three-way switching valve; 4. Solar water heater; 5. Electric water heater; 6. Water outlet pipe; 7. Water outlet valve; 8. Valve switching controller; 9. Thermal relay switch; 10. Battery; 101. Base box; 102. Transparent plastic cover; 103. Sealing ring; 104. Mounting ear hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example

[0022] like Figure 1 and2 As shown, a novel cogeneration control device proposed in one embodiment of the present invention includes a relay water tank 1. The top of the relay water tank 1 is connected to a water inlet pipe 2. The middle of the water inlet pipe 2 is connected to an electrically controlled three-way switching valve 3. The water inlet elbow on the left side of the top of the electrically controlled three-way switching valve 3 is connected to a solar water heater 4. The water inlet elbow on the right side of the top of the electrically controlled three-way switching valve 3 is connected to an electric water heater 5. One side of the bottom end of the relay water tank 1 is connected to a water outlet pipe 6. The middle of the water outlet pipe 6 is connected to a water outlet valve 7.

[0023] A valve switching controller 8 is fixedly installed on one side of the relay water tank 1, and the output end of the valve switching controller 8 is electrically connected to the electrically controlled three-way switching valve 3. A thermal relay switch 9 is fixedly installed on one side of the bottom end of the relay water tank 1. The temperature measuring probe of the thermal relay switch 9 extends to the bottom end of the inner cavity of the relay water tank 1, and the output end battery cell of the thermal relay switch 9 is connected to the valve switching controller 8.

[0024] In this embodiment, the electrically controlled three-way switching valve 3 is a commercially available HG61AC-B type electrically controlled three-way valve, which connects the solar water heater 4 to the relay water tank 1 when the power is off, and connects the electric water heater 5 to the relay water tank 1 when the power is on;

[0025] When the power is off, the water in the solar water heater 4 flows into the relay water tank 1. At this time, the thermal relay switch 9 detects the temperature of the water in the relay water tank 1 through its temperature measuring probe. When the temperature reaches the set value, for example, fifty degrees Celsius, the electrically controlled three-way switching valve 3 continues to connect to the solar water heater 4, allowing the hot water therein to continue to flow into the relay water tank 1. When the thermal relay switch 9 detects that the temperature of the water in the relay water tank 1 is lower than the set value, the valve switching controller 8 controls the electrically controlled three-way switching valve 3 to be connected to the electric water heater 5. At this time, the hot water in the electric water heater 5 flows into the relay water tank 1, maintaining the water flow temperature of the relay water tank 1 and the water outlet valve 7.

[0026] This novel cogeneration control device can flexibly use the hot water in the solar water heater 4 and the electric water heater 5 according to demand, and flexibly switch through the electronically controlled three-way switching valve 3 to adjust the water temperature, thereby adjusting the specific temperature of the heat exchange medium and making comprehensive and orderly use of multiple energy sources.

[0027] Furthermore, a battery 10 is fixedly installed on the side wall of the relay water tank 1, and the battery 10 is electrically connected to the power supply end of the valve switching controller 8 to provide power to the valve switching controller 8 so as to enable it to perform the above-mentioned control of the electric-controlled three-way switching valve 3.

[0028] Furthermore, the relay water tank 1 includes a bottom box 101, the front of which is fixedly connected to a transparent plastic cover 102 by screws, and a sealing ring 103 is engaged between the bottom box 101 and the transparent plastic cover 102. Therefore, the capacity of the water body in the relay water tank 1 can be observed through the transparent plastic cover 102.

[0029] Furthermore, the thermal relay switch 9 is an XH-W3002 digital display adjustable temperature control switch.

[0030] The XH-W3002 digital display adjustable temperature control switch can set the starting temperature, and its temperature adjustment range is from -50 degrees to 110 degrees. Therefore, the temperature in the relay water tank 1 can be set according to demand. When the temperature is higher than the adjusted set value, the valve switching controller 8 is powered off. At this time, the electric three-way switching valve 3 is connected to the solar water heater 4 to inject water into the relay water tank 1. When the temperature is lower than the adjusted set value, an adjustment signal is sent to the valve switching controller 8 to control the electric three-way switching valve 3 to connect the electric water heater 5 to inject water into the relay water tank 1.

[0031] Furthermore, a mounting ear hole 104 is fixedly provided on the back side of the relay water tank 1. The mounting ear hole 104 can fix the relay water tank 1 on a wall or a bracket, making it easier for construction workers to install it.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A novel combined heat and power control device, comprising a relay water tank (1), characterized in that: The top of the relay water tank (1) is connected to a water inlet pipe (2), the middle of the water inlet pipe (2) is connected to an electrically controlled three-way switching valve (3), the water inlet elbow on the left side of the top of the electrically controlled three-way switching valve (3) is connected to a solar water heater (4), the water inlet elbow on the right side of the top of the electrically controlled three-way switching valve (3) is connected to an electric water heater (5), one side of the bottom of the relay water tank (1) is connected to a water outlet pipe (6), and the middle of the water outlet pipe (6) is connected to a water outlet valve (7); A valve switching controller (8) is fixedly installed on one side of the relay water tank (1), and the output end of the valve switching controller (8) is electrically connected to the electrically controlled three-way switching valve (3). A thermal relay switch (9) is fixedly installed on one side of the bottom end of the relay water tank (1), and the temperature measuring probe of the thermal relay switch (9) extends into the bottom end of the inner cavity of the relay water tank (1), and the output end battery core of the thermal relay switch (9) is connected to the valve switching controller (8).

2. A novel cogeneration control device according to claim 1, characterized in that: A battery (10) is fixedly mounted on the side wall of the relay water tank (1), and the battery (10) is electrically connected to the power supply terminal of the valve switching controller (8).

3. A novel cogeneration control device according to claim 1, characterized in that: The relay water tank (1) comprises a bottom box (101), the front of the bottom box (101) is fixedly connected to a transparent plastic cover (102) by screws, and a sealing ring (103) is engaged and connected between the bottom box (101) and the transparent plastic cover (102).

4. A novel cogeneration control device according to claim 1, characterized in that: The thermal relay switch (9) is an XH-W3002 digital display adjustable temperature control switch.

5. The novel cogeneration control device according to claim 1, characterized in that: A mounting ear hole (104) is fixedly provided on the back side of the relay water tank (1).

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