Natural gas boiler with condensate water recovery device

Abstract

The utility model discloses a natural gas boiler with a condensate water recovery device, which comprises a shell, a natural gas stove with a three-fork structure is fixedly connected to the inner bottom surface of the shell, an ignition device is arranged in the natural gas stove, an inner cylinder is fixedly connected to the upper end of the natural gas stove, and a temperature and pressure transmitter is fixedly connected to the top surface of the inner surface of the inner cylinder. A penetrating hole is formed in the middle of the upper surface of the shell, a water purifier is fixedly connected to the middle of the left side of the upper surface of the shell, the water outlet end of the water purifier communicates with the water inlet end of the inner cylinder, and a steam outlet of the inner cylinder communicates with the air inlet end of the condensate water recycling box through a steam pipeline. And a water suction pump is fixedly connected to the inner bottom face of the condensate water recycling box, the condensate water can be rapidly filtered and recycled after output steam is cooled and condensed, the recycled water is discharged into the boiler again, the purpose of recycling water resources is achieved, and resource waste is avoided.

Description

Technical Field

[0001] This utility model relates to the field of natural gas boiler technology, specifically a natural gas boiler with a condensate recovery device. Background Technology

[0002] A natural gas boiler is an energy conversion device. The energy input to the boiler includes the chemical energy of the fuel and electrical energy. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy.

[0003] However, the flue gas condensate of existing boilers is basically simply treated to meet emission standards and then directly discharged into the municipal pipe network without recycling and reuse, which easily leads to resource waste. To address this, we propose a natural gas boiler with a condensate recovery device. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a natural gas boiler with a condensate recovery device, which can quickly filter and recover the condensate after the output steam is cooled and condensed, and the recovered water is discharged back into the boiler, thereby achieving the purpose of water resource recycling and avoiding resource waste. This can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a natural gas boiler with a condensate recovery device, comprising an outer shell, a three-pronged natural gas stove fixedly connected to the bottom surface of the inner shell, an ignition device built into the natural gas stove, an inner cylinder fixedly connected to the upper end of the natural gas stove, and a temperature and pressure transmitter fixedly connected to the top surface of the inner cylinder, a perforation in the middle of the upper surface of the outer shell, and a water purifier fixedly connected to the middle of the left side of the upper surface of the outer shell, the outlet of the water purifier being connected to the inlet of the inner cylinder, and the steam outlet of the inner cylinder being connected to a steam pipe. The air inlet of the condensate recovery tank is connected to the air inlet, and a water pump is fixedly connected to the bottom of the condensate recovery tank. The water outlet of the water pump is connected to the water inlet on the upper surface of the water purifier through the return water pipe. An external water inlet is opened at the front of the left side of the water purifier, and a sewage outlet is opened at the rear of the left side of the water purifier. A support frame is fixedly connected to the lower outer side of the outer shell, and a control switch group is fixedly connected to the middle of the outer surface of the right support arm of the support frame. A natural gas inlet is opened at the lower front side of the outer shell, and a throttle valve is fixedly connected to the natural gas inlet.

[0006] Wherein: the input terminal of the control switch group is electrically connected to the output terminal of the external power supply, and the output terminal of the control switch group is electrically connected to the input terminals of the throttle valve, the built-in ignition device of the natural gas stove and the water pump respectively, and the control switch group is bidirectionally electrically connected to the temperature and pressure transmitter.

[0007] Furthermore, it also includes a filter plate. A slot is provided in the middle of the front surface of the condensate recovery tank, and a filter plate is inserted into the slot. Guide rails are slidably connected to the left and right sides of the lower surface of the filter plate, and the outer surface of the guide rails is fixedly connected to the inner surface of the condensate recovery tank. The filter plate can perform preliminary filtration of condensate, preventing water stains or rust residue in the pipes from damaging the boiler, thereby making the equipment safer to use.

[0008] Furthermore, it also includes a pressure relief valve. The middle front end of the steam pipe has an installation groove, and the pressure relief valve is fixedly connected inside the installation groove. The air inlet of the pressure relief valve is connected to the inside of the steam pipe, and the input end of the pressure relief valve is electrically connected to the output end of the control switch group. The installed pressure relief valve can release pressure when the pressure inside the boiler is too high, avoiding dangerous accidents such as boiler explosion, thereby making the use of the boiler safer.

[0009] Furthermore, it also includes heat-conducting plates, which are copper fins and are fixedly connected to the outer surface of the inner cylinder in a circumferential array. The heat-conducting plates can conduct heat quickly, ensuring that the inner cylinder inside the boiler is heated evenly, and avoiding heat loss or uneven heat transfer that would cause energy waste.

[0010] Furthermore, it also includes a hoop, which is fixedly connected to the top of the support frame, and the inner ring surface of the hoop is fixedly connected to the middle of the outer surface of the shell; the hoop can reinforce the top of the support frame and prevent the support frame from shaking or shifting, thus affecting the safety performance of the boiler during use.

[0011] Furthermore, it also includes a heat insulation board, which is made of high-temperature resistant material and is attached to the inner surface of the outer shell; the heat insulation board can effectively retain heat and prevent heat loss from affecting the thermal energy utilization efficiency of the boiler.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This natural gas boiler with a condensate recovery device has the following advantages:

[0013] 1. It can quickly filter and recycle the condensate after the output steam is cooled and condensed, and the recycled water is discharged back into the boiler, achieving the purpose of water resource recycling and avoiding resource waste.

[0014] 2. The filter plate can perform preliminary filtration of condensate, preventing water stains or rust residue in the pipes from damaging the boiler, thus making the equipment safer to use.

[0015] 3. The installed pressure relief valve can release pressure when the pressure inside the boiler is too high, preventing dangerous accidents such as boiler explosions, thus making the boiler safer to use.

[0016] 4. The heat-conducting plates are designed to conduct heat quickly, ensuring that the inner cylinder of the boiler is heated evenly and avoiding heat loss or uneven heat transfer that could lead to energy waste. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the lower cross-sectional structure of this utility model.

[0020] In the diagram: 1. Outer shell, 2. Support frame, 3. Throttling valve, 4. Control switch assembly, 5. Condensate recovery tank, 6. Filter plate, 7. Steam pipe, 8. Return water pipe, 9. Pressure relief valve, 10. Water purifier, 11. Natural gas stove, 12. Heat-conducting plate, 13. Inner cylinder, 14. Hoop, 15. Water pump, 16. Temperature and pressure transmitter, 17. Insulation plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This embodiment provides a technical solution: a natural gas boiler with a condensate recovery device, including an outer shell 1. A three-pronged natural gas stove 11 is fixedly connected to the bottom surface of the inner shell 1. The natural gas stove 11 has a built-in ignition device. An inner cylinder 13 is fixedly connected to the upper end of the natural gas stove 11, and a temperature and pressure transmitter 16 is fixedly connected to the top surface of the inner cylinder 13. A perforation is opened in the middle of the upper surface of the outer shell 1, and a water purifier 10 is fixedly connected to the middle of the left side of the upper surface of the outer shell 1. The water outlet of the water purifier 10 is connected to the water inlet of the inner cylinder 13. The steam outlet of the inner cylinder 13 is connected to the condensate recovery device via a steam pipe 7. The air inlet of the condensate recovery tank 5 is connected, and a water pump 15 is fixedly connected to the bottom of the condensate recovery tank 5. The water outlet of the water pump 15 is connected to the water inlet on the upper surface of the water purifier 10 through the return water pipe 8. An external water inlet is opened at the front end of the left side of the water purifier 10, and a sewage outlet is opened at the rear end of the left side of the water purifier 10. A support frame 2 is fixedly connected to the lower outer side of the outer shell 1, and a control switch group 4 is fixedly connected to the middle of the outer surface of the right support arm of the support frame 2. A natural gas inlet is opened at the lower front side of the outer shell 1, and a throttle valve 3 is fixedly connected to the natural gas inlet.

[0023] Among them: the input terminal of the control switch group 4 is electrically connected to the output terminal of the external power supply, and the output terminal of the control switch group 4 is electrically connected to the input terminals of the throttle valve 3, the built-in ignition device of the natural gas stove 11 and the water pump 15 respectively. The control switch group 4 is bidirectionally electrically connected to the temperature and pressure transmitter 16.

[0024] In this embodiment, a filter plate 6 is also included. A slot is provided in the middle of the front surface of the condensate recovery tank 5, and the filter plate 6 is inserted into the slot. Guide rails are slidably connected to the left and right sides of the lower surface of the filter plate 6, and the outer surface of the guide rails is fixedly connected to the inner surface of the condensate recovery tank 5. The filter plate 6 can perform preliminary filtration of condensate, preventing water stains or rust residue in the pipes from damaging the boiler, thereby making the use of the equipment safer.

[0025] In this embodiment, a pressure relief valve 9 is also included. An installation groove is provided at the front end of the middle section of the steam pipe 7, and the pressure relief valve 9 is fixedly connected inside the installation groove at the front end of the steam pipe 7. The air inlet of the pressure relief valve 9 is connected to the inside of the steam pipe 7, and the input end of the pressure relief valve 9 is electrically connected to the output end of the control switch group 4. The installed pressure relief valve 9 can relieve pressure when the pressure inside the boiler is too high, so as to avoid dangerous accidents such as boiler explosion, and thus make the use of the boiler safer.

[0026] In this embodiment, a heat-conducting plate 12 is also included. The heat-conducting plate 12 is a copper fin and is fixedly connected to the outer surface of the inner cylinder 13 in a circumferential array. The heat-conducting plate 12 can conduct heat quickly, ensuring that the inner cylinder 13 inside the boiler is heated evenly, and avoiding heat loss or uneven heat transfer that would cause energy waste.

[0027] In this embodiment, a hoop 14 is also included. The hoop 14 is fixedly connected to the top of the support frame 2, and the inner ring surface of the hoop 14 is fixedly connected to the middle of the outer surface of the outer shell 1. The hoop 14 can reinforce the top of the support frame 2 and prevent the support frame 2 from shaking or shifting, which would affect the safety performance of the boiler during use.

[0028] In this embodiment, a heat insulation plate 17 is also included. The heat insulation plate 17 is made of high temperature resistant material and is attached to the inner surface of the outer shell 1. The heat insulation plate 17 can effectively retain heat and prevent heat loss from affecting the thermal energy utilization efficiency of the boiler.

[0029] The working principle of the natural gas boiler with condensate recovery device provided by this utility model is as follows: The temperature and pressure inside the boiler are monitored by the temperature and pressure transmitter 16. According to the temperature, the gas intake is controlled by the throttle valve 3 to ensure that the boiler is at its highest thermal efficiency during use. When the pressure inside the boiler is too high, the pressure relief valve 9 can be opened to release pressure and prevent the boiler from exploding due to excessive internal pressure. The hot steam inside the boiler is cooled and converted in the condensate recovery tank 5. The converted hot steam condenses into water. The filter plate 6 performs preliminary filtration of the condensed water. Then, the water pump 15 delivers the water to the water purifier 10 through the return water pipe 8. The water purifier 10 filters the water again and then injects clean water back into the inner cylinder 13 and discharges the sewage. When the water inside the boiler is consumed, water is injected into the boiler through another water inlet of the water purifier 10 to ensure that the water volume inside the boiler is sufficient.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A natural gas boiler equipped with a condensate recovery device, characterized in that: The system includes an outer shell (1), with a three-pronged natural gas stove (11) fixedly connected to the bottom of the inner surface of the outer shell (1). The natural gas stove (11) has a built-in ignition device. An inner cylinder (13) is fixedly connected to the upper end of the natural gas stove (11), and a temperature and pressure transmitter (16) is fixedly connected to the top surface of the inner surface of the inner cylinder (13). A perforation is provided in the middle of the upper surface of the outer shell (1), and a water purifier (10) is fixedly connected to the middle of the left side of the upper surface of the outer shell (1). The water outlet of the water purifier (10) is connected to the water inlet of the inner cylinder (13), and the steam outlet of the inner cylinder (13) is connected to the air inlet of the condensate recovery tank (5) through a steam pipe (7). The condensate recovery tank (5) is connected to a water pump (15) on its inner bottom surface. The outlet of the water pump (15) is connected to the inlet of the water purifier (10) on its upper surface through the return water pipe (8). The water purifier (10) has an external water inlet at the front end of its left side and a sewage outlet at the rear end of its left side. The outer lower end of the outer shell (1) is fixedly connected to a support frame (2). The middle of the outer surface of the right arm of the support frame (2) is fixedly connected to a control switch group (4). The lower front side of the outer shell (1) has a natural gas inlet. A throttle valve (3) is fixedly connected to the natural gas inlet. Wherein: the input end of the control switch group (4) is electrically connected to the output end of the external power supply, and the output end of the control switch group (4) is electrically connected to the input end of the throttle valve (3), the built-in ignition device of the natural gas stove (11) and the water pump (15), respectively. The control switch group (4) is bidirectionally electrically connected to the temperature and pressure transmitter (16).

2. A natural gas boiler with a condensate recovery device according to claim 1, characterized in that: It also includes a filter plate (6), and a slot is provided in the middle of the front surface of the condensate recovery tank (5). The filter plate (6) is inserted into the slot provided in the front surface of the condensate recovery tank (5). Guide rails are slidably connected to the left and right sides of the lower surface of the filter plate (6), and the outer surface of the guide rails is fixedly connected to the inner surface of the condensate recovery tank (5).

3. A natural gas boiler with a condensate recovery device according to claim 1, characterized in that: It also includes a pressure relief valve (9). The middle front end of the steam pipe (7) is provided with an installation groove, and the installation groove at the front end of the steam pipe (7) is fixedly connected to the pressure relief valve (9). The air inlet of the pressure relief valve (9) is connected to the inside of the steam pipe (7), and the input end of the pressure relief valve (9) is electrically connected to the output end of the control switch group (4).

4. A natural gas boiler with a condensate recovery device according to claim 1, characterized in that: It also includes a heat-conducting plate (12), which is a copper fin and is fixedly connected to the outer surface of the inner cylinder (13) in a circumferential array.

5. A natural gas boiler with a condensate recovery device according to claim 1, characterized in that: It also includes a hoop (14), which is fixedly connected to the top of the support frame (2), and the inner ring surface of the hoop (14) is fixedly connected to the middle of the outer surface of the outer shell (1).

6. A natural gas boiler with a condensate recovery device according to claim 1, characterized in that: It also includes a heat insulation board (17), which is made of high temperature resistant material and is attached to the inner surface of the outer shell (1).

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