Waste heat recovery apparatus for energy-saving gas boiler

Abstract

A waste heat recovery apparatus for an energy-saving gas boiler, comprising: a gas boiler (1) and a recovery tank (2) arranged on one side of the gas boiler (1), and further comprising: steam chambers (3) that are arranged opposite each other and each have a cavity inside, a heat conduction tube I (4), a heat conduction tube II (5), a liquid storage tank (6) and a liquid transfer member (7), wherein the steam chambers (3) are both arranged on the inner wall of the recovery tank (2), one end of each cavity being in communication with a steam exhaust port of the gas boiler (1) through piping; the heat conduction tube I (4) is arranged between the two steam chambers (3); and the liquid storage tank (6) is arranged on one side of the steam chambers (3). Part of heat is transferred from steam to a liquid via thermal conduction.

Description

Waste heat recovery equipment for energy-saving gas boilers [Technical Field]

[0001] This utility model relates to the technical field of waste heat recovery equipment for gas-fired boilers, and in particular to a waste heat recovery equipment for an energy-saving gas-fired boiler. [Background Technology]

[0002] Gas-fired boilers primarily heat liquids through fuel combustion, thereby raising the liquid's temperature. However, water vapor is generated during this rising process. To recover this water vapor, a waste heat recovery device is typically used. Existing waste heat recovery devices mainly consist of a collection tank, steam pipes, a fan, and a condenser. The fan drives the steam into the steam pipes, which then transport the steam to the condenser for condensation. The condenser then collects the condensed steam and transfers it to the collection tank for collection, thus achieving waste heat recovery.

[0003] While the above method can achieve waste heat recovery, the following problems still exist:

[0004] 1. Firstly, when water vapor condenses, it directly enters the condenser for condensation. After condensation, the water vapor loses some of its heat, thus reducing the efficiency of heat utilization.

[0005] 2. Secondly, after water vapor condenses, some of the water in the water vapor will condense into water, but some water will be discharged to the outside with the airflow. If the airflow is directly condensed and discharged to the outside, the efficiency of water molecule resource collection in the airflow will be reduced, thus wasting water molecule resources.

[0006] [Utility Model Content]

[0007] The purpose of this invention is to solve the problems in the prior art and to propose a waste heat recovery device for an energy-saving gas boiler that can collect water vapor.

[0008] This utility model proposes a waste heat recovery device for an energy-saving gas-fired boiler, comprising: a gas-fired boiler and a recovery box disposed on one side of the gas-fired boiler.

[0009] It also includes: a steam box arranged opposite each other and having a built-in chamber, a heat pipe one, a heat pipe two, a liquid storage tank, and an infusion device;

[0010] The steam boxes are all installed on the inner wall of the recovery box, and the chambers, condensers and gas boilers are connected by pipes;

[0011] The heat-conducting pipe is positioned between the two steam boxes, with both ends communicating with the inner chambers of the steam boxes.

[0012] The liquid storage tank is located on one side of the steam tank, and the second heat-conducting pipe is wound around the first heat-conducting pipe, with the second heat-conducting pipe in contact with the first heat-conducting pipe.

[0013] The infusion device is installed inside the liquid storage tank, and one end of the heat-conducting pipe 2 is connected to the infusion device, while the other end of the heat-conducting pipe 2 is connected to the liquid storage tank.

[0014] A condenser is provided on one side of the recycling box. The condenser is connected to the recycling box through a pipe. A fan is fixedly connected to the condenser. A heat pipe is connected to the fan. The middle part of the heat pipe is located inside the liquid storage tank. The end of the heat pipe away from the fan extends to the outside of the liquid storage tank.

[0015] One end of the heat pipe three is connected to a liquid recovery tank one, and a fan two is fixedly connected to the liquid recovery tank one.

[0016] The heat pipe three is arranged in a spiral shape in the middle, and the spiral heat pipe three is evenly distributed in the liquid recovery tank one.

[0017] The heat pipe is connected to a water outlet pipe, one end of which is connected to a liquid recovery tank, and a solenoid valve is fixedly connected to the water outlet pipe.

[0018] A control panel is fixedly connected to the liquid storage tank. A temperature sensor is fixedly connected inside the liquid storage tank and electrically connected to the control panel. A liquid discharge pipe is fixedly connected to the liquid storage tank. A second solenoid valve is fixedly connected to the liquid storage tank and electrically connected to the control panel.

[0019] A liquid level sensor is fixedly connected inside the liquid storage tank. The liquid level sensor is electrically connected to the control panel. An inlet pipe is connected to the liquid storage tank. A solenoid valve is fixedly connected to the inlet pipe. The solenoid valve is electrically connected to the control panel.

[0020] The beneficial effects of this utility model are as follows: Water vapor is transported into the first heat-conducting pipe through a pipe installed at the upper end of the chamber, and then liquid is transported into the second heat-conducting pipe through a liquid delivery device. The heat conduction of the first heat-conducting pipe conducts heat to the second heat-conducting pipe, thereby achieving heat conduction of the liquid in the second heat-conducting pipe. This realizes the recovery of some of the heat in the water vapor. By conducting heat to the liquid, some of the heat in the water vapor can be transferred to the liquid, and the heat can be recovered and utilized by the liquid. This reduces the loss of some heat in the water vapor and further improves the utilization rate of heat. [Attached Image Description]

[0021] Figure 1 is a structural schematic diagram of this utility model;

[0022] Figure 2 is a schematic diagram of the position of the infusion component of this utility model.

Detailed Implementation Methods

[0023] As shown in Figures 1 and 2, an energy-saving waste heat recovery device for a gas-fired boiler according to this utility model includes: a gas-fired boiler 1 and a recovery box 2 disposed on one side of the gas-fired boiler 1.

[0024] Also includes:

[0025] The steam tanks and heat pipes 4 are arranged opposite each other and have built-in chambers. The steam tanks are located on the inner wall of the recovery tank and are connected to each other by the heat pipes 4. One of the steam tanks is connected to the exhaust port of the gas boiler 1 through a pipe. The condenser 23 is located in the middle of the pipe for preliminary condensation, which allows steam to enter the steam tank through the pipe. The steam can be transferred to the other steam tank through the heat pipes 4 on the steam tank, thus transferring the steam.

[0026] The system comprises a heat pipe 25, a liquid storage tank 6, and a conveying component. The conveying component, which is fixedly connected inside the liquid storage tank 6, is activated. Since one end of the liquid conveying component is connected to the heat pipe 25 and the heat pipe 25 is wound around the heat pipe 4, and the heat pipe 4 and the heat pipe 25 are in contact, the temperature of the liquid inside the heat pipe 4 can be transferred to the heat pipe 25, thus heating the liquid inside the heat pipe 25. By connecting the heat pipe 25 to the liquid storage tank 6, the liquid can be circulated. Furthermore, the conveying component includes a liquid pump 24 fixedly connected inside the liquid storage tank 6. The liquid pump 24 is connected to the heat pipe 4 and can realize the circulation and transfer of the liquid inside the liquid storage tank 6.

[0027] Furthermore, since a condenser box 8 is provided on one side of the recycling box 2, and the condenser box 8 is connected to the recycling box 2 through a pipe, a fan 9 is fixedly connected to the condenser box 8, and a heat pipe 10 is connected to the fan 9. The middle part of the heat pipe 10 is located inside the liquid storage tank 6, and the end of the heat pipe 10 away from the fan 9 extends outside the liquid storage tank 6. Therefore, the fan 9 can transmit water vapor into the heat pipe 10, so that the heat pipe 10 transmits water vapor into the condenser box 8. When the water vapor enters the heat pipe 10, the heat pipe 10 located in the liquid storage tank 6 can conduct heat to the liquid in the liquid storage tank 6, thereby realizing the recycling of the liquid.

[0028] Specifically, a recovery box is connected to one end of the heat pipe 3 10. The recovery box is mainly used to recover the water condensed by the water vapor of the heat pipe 3 10. A fan 2 12 is connected to the recovery box, which is mainly used to discharge the gas in the recovery box.

[0029] Specifically, the heat pipe 310 is arranged in a spiral shape in the middle, and the spiral heat pipe 310 is evenly distributed in the liquid recovery tank 11, which can increase the time that the liquid stays in the heat pipe 310.

[0030] Specifically, the water outlet pipe 13 is connected to the heat conduction pipe 4, and one end of the water outlet pipe 13 is connected to the liquid recovery tank 14. A solenoid valve 15 is fixedly connected to the water outlet pipe 13. When the water vapor in the heat conduction pipe 4 condenses into water, the solenoid valve 15 opens, and the water enters the liquid recovery tank 14 through the water outlet pipe 13, thereby realizing water recovery.

[0031] Specifically, since a control panel 16 is fixedly connected to the liquid storage tank 6, and a temperature sensor 17 is fixedly connected inside the liquid storage tank 6, the temperature sensor 17 is electrically connected to the control panel 16. A liquid discharge pipe 18 is fixedly connected to the liquid storage tank 6, and a solenoid valve 19 is fixedly connected to the liquid discharge pipe 18, the solenoid valve 19 is electrically connected to the control panel 16. Therefore, when the temperature sensor 17 senses that the liquid temperature in the liquid storage tank 6 has risen to a certain temperature, it transmits a signal to the control panel 16. The control panel 16 then controls the solenoid valve 19 to open, and the liquid is discharged to the outside through the liquid discharge pipe 18.

[0032] Specifically, since a liquid level sensor 20 is fixedly connected inside the liquid storage tank 6, and the liquid level sensor 20 is electrically connected to the control panel 16, and an inlet pipe 21 is connected to the liquid storage tank 6, and a solenoid valve 22 is fixedly connected to the inlet pipe 21, and the solenoid valve 22 is electrically connected to the control panel 16, when the liquid level sensor 20 senses that the liquid level has dropped to a certain level, it transmits a signal to the control panel 16. The control panel 16 controls the solenoid valve 22 to open and the solenoid valve 19 to close, and the liquid will enter the liquid storage tank 6 through the inlet pipe 21, thereby replenishing the liquid in the liquid storage tank 6.

[0033] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A waste heat recovery device for an energy-saving gas-fired boiler, comprising: A gas-fired boiler (1), a condenser, and a recovery tank (2) disposed on one side of the gas-fired boiler (1), characterized in that, It also includes: a steam tank (3) arranged opposite to each other and having a built-in chamber, a heat-conducting pipe one (4), a heat-conducting pipe two (5), a liquid storage tank (6), and an infusion fitting (7); The steam boxes (3) are all installed on the inner wall of the recovery box (2), and the chamber, condenser and gas boiler (1) are connected by pipes; The heat-conducting pipe (4) is set between the two steam boxes (3), and its two ends are respectively connected to the inner cavity of the steam box (3); The liquid storage tank (6) is located on one side of the steam tank (3), and the second heat-conducting pipe (5) is wrapped around the first heat-conducting pipe (4), with the second heat-conducting pipe (5) in contact with the first heat-conducting pipe (4). The infusion device (7) is installed inside the liquid storage tank (6), and one end of the heat-conducting pipe (5) is connected to the infusion device (7), while the other end of the heat-conducting pipe (5) is connected to the liquid storage tank (6).

2. The waste heat recovery equipment for an energy-saving gas boiler according to claim 1, characterized in that: A condenser box (8) is provided on one side of the recycling box (2). The condenser box (8) is connected to the recycling box (2) through a pipe. A fan (9) is fixedly connected to the condenser box (8). A heat pipe (10) is connected to the fan (9). The middle part of the heat pipe (10) is located inside the liquid storage tank (6). The end of the heat pipe (10) away from the fan extends to the outside of the liquid storage tank (6).

3. The waste heat recovery equipment for an energy-saving gas boiler according to claim 2, characterized in that: One end of the heat pipe three (10) is connected to the liquid recovery tank one (11), and the liquid recovery tank one (11) is fixedly connected to the fan two (12).

4. The waste heat recovery equipment for an energy-saving gas boiler according to claim 3, characterized in that: The heat pipe three (10) is arranged in a spiral shape in the middle, and the spiral heat pipe three (10) is evenly distributed in the liquid recovery tank one (11).

5. The waste heat recovery equipment for an energy-saving gas boiler according to claim 1, characterized in that: The heat-conducting pipe (4) is connected to a water outlet pipe (13), one end of which is connected to a liquid recovery tank (14), and a solenoid valve (15) is fixedly connected to the water outlet pipe (13).

6. The waste heat recovery equipment for an energy-saving gas boiler according to claim 5, characterized in that: A control panel (16) is fixedly connected to the liquid recovery tank (14). A temperature sensor (17) is fixedly connected inside the liquid recovery tank (14). The temperature sensor (17) is electrically connected to the control panel (16). A liquid discharge pipe (18) is fixedly connected to the liquid recovery tank (14). A solenoid valve (19) is fixedly connected to the liquid discharge pipe (18). The solenoid valve (19) is electrically connected to the control panel (16).

7. The waste heat recovery equipment for an energy-saving gas boiler according to claim 6, characterized in that: A liquid level sensor (20) is fixedly connected inside the liquid recovery tank (14). The liquid level sensor (20) is electrically connected to the control panel (16). An inlet pipe (21) is connected to the liquid recovery tank (14). A solenoid valve (22) is fixedly connected to the inlet pipe (21). The solenoid valve (22) is electrically connected to the control panel (16).

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