Water-cooling gas low-nitrogen condensation vacuum boiler

Abstract

The utility model relates to the technical field of vacuum boilers, and discloses a water-cooling gas low-nitrogen condensation vacuum boiler which comprises a recovery condensation tank, the inner wall of the recovery condensation tank is fixedly connected with a mounting plate, and the upper surface of the mounting plate is fixedly connected with a plate type condenser. Hot gas is liquefied into water in the recycling condensation tank and then sent back to the heating tank body, energy is effectively recycled, the energy utilization efficiency of the whole system is improved, condensate water in the recycling condensation tank can be sent back to the heating tank body through the conveying pump, input of external water resources is reduced, the cyclic utilization rate of the water resources is improved, and the operation cost is reduced. Hot gas generated by the combustion tank enters the filter box through the flow guide pipe, is filtered by the filter screen group and then enters the heating tank body, so that impurities in the gas are effectively removed, the purity of the gas entering the heating tank body is improved, the internal structure of the heating tank body is favorably protected, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum boilers, in particular to a water-cooled gas-fired low-nitrogen condensing vacuum boiler. Background Art

[0002] With the development of modern industry and the improvement of people's living standards, the demand for energy continues to grow. In many fields such as industrial production, building heating and domestic hot water supply, they rely on efficient thermal energy supply equipment. For example, in large-scale centralized heating in the northern winter, a large number of boiler equipment is needed to provide stable thermal energy.

[0003] Traditional boiler systems are inefficient in water resource utilization. During operation, they often need to continuously obtain large amounts of fresh water from the outside to maintain operation, and it is difficult to effectively recycle and reuse the waste heat inside the boiler. From the perspective of resource consumption, this situation leads to excessive consumption of water and heat resources. Since the internal waste heat cannot be fully utilized, more fresh water is needed to supplement it, and more energy is also needed to heat the water, resulting in a double waste of water and heat resources. In areas where water resources are relatively scarce or in scenarios where boilers are used on a large scale, this problem of inefficient water resource utilization becomes particularly prominent and has become a difficult problem that urgently needs to be solved. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a water-cooled gas low-nitrogen condensing vacuum boiler.

[0005] The utility model is implemented by the following technical scheme: a water-cooled gas low-nitrogen condensing vacuum boiler, comprising a recovery condensation tank, the inner wall of the recovery condensation tank is fixedly connected with a mounting plate, the upper surface of the mounting plate is fixedly connected with a plate condenser, the inner bottom wall of the recovery condensation tank is fixedly connected with a delivery pump, the output end of the delivery pump is fixedly connected with a recovery pipe, a first one-way valve is provided inside the recovery pipe, and one end of the recovery pipe is fixedly connected with a heating tank body.

[0006] Through the above technical solution, by arranging a mounting plate on the inner wall of the recovery condensation tank, installing a plate condenser, and arranging a delivery pump, a recovery pipe and a first one-way valve, the water droplets generated by the condensation of hot gas can be returned to the heating tank body, thereby reducing the input of water resources, recycling the condensed water, and improving the utilization rate of water resources. The water in the heating tank body can be used by personnel after being heated.

[0007] As a further improvement of the above solution, a suction pump is fixedly connected to the upper surface of the recovery condensation tank, and a heat supply pipe is fixedly connected to the output end of the suction pump. The heat supply pipe is arranged inside the recovery condensation tank.

[0008] As a further improvement of the above solution, the input end of the suction pump is fixedly connected to a heat absorption tube, a second one-way valve is provided on the surface of the heat absorption tube, and the heat absorption tube is arranged inside the heating tank body.

[0009] Through the above technical solution, the heat absorption tube connected to the input end of the suction pump is arranged in the heating tank body, and a second one-way valve is provided on the surface, which can extract the residual heat after heating the water inside the heating tank body, use the residual heat to liquefy water and send it back to the heating tank body for reuse, thereby improving the utilization rate of energy and reducing energy waste.

[0010] As a further improvement of the above solution, a placement plate is fixedly connected to the surface of the heating tank body, a combustion tank is fixedly connected to the surface of the placement plate, an air pipe is fixedly connected to one side of the upper surface of the combustion tank, and a gas pipe is fixedly connected to the other side of the upper surface of the combustion tank.

[0011] As a further improvement of the above solution, a flow guide tube is fixedly connected to the upper surface of the combustion tank, and a filter box is fixedly connected to the surface of the flow guide tube.

[0012] Through the above technical solution, the gas generated by combustion is preliminarily treated to filter out impurities, etc., providing relatively pure gas for subsequent operations.

[0013] As a further improvement of the above solution, the surface of the filter box is fixedly connected to the interior of the heating tank through a pipe.

[0014] Through the above technical solution, the filter box is connected to the heating tank body through a pipeline, so that the substances filtered by the filter box can enter the heating tank body.

[0015] As a further improvement of the above solution, a filter group is provided inside the filter box, and a support column is fixedly connected to the lower surface of the placement plate.

[0016] Through the above technical solution, a filter group is arranged inside the filter box, which can effectively filter impurities and other substances in the gas and improve the purity of the gas.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model discloses the waste heat of the heating tank can be extracted out through the suction pump, so that the hot gas is liquefied into water in the recovery condensation tank and then sent back to the heating tank, effectively recovering energy and improving the energy utilization efficiency of the whole system. The condensed water in the recovery condensation tank can be sent back to the heating tank through the delivery pump, reducing the input of external water resources, improving the recycling rate of water resources and reducing operating costs. The hot gas generated by the combustion tank enters the filter box through the guide pipe, is filtered by the filter group and then enters the heating tank, effectively removing impurities in the gas and improving the purity of the gas entering the heating tank, which is beneficial to protecting the internal structure of the heating tank and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the explosion structure of the filter group of the utility model;

[0021] Figure 3 This is a schematic structural diagram of the first one-way valve of the utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the plate condenser of the present invention;

[0023] Description of main symbols:

[0024] 1. Recovery condenser; 2. Mounting plate; 3. Plate condenser; 4. Delivery pump; 5. Recovery pipe; 6. First one-way valve; 7. Heating tank; 8. Suction pump; 9. Heat delivery pipe; 10. Heat absorption pipe; 11. Second one-way valve; 12. Placement plate; 13. Combustion tank; 14. Air pipe; 15. Gas pipe; 16. Guide pipe; 17. Filter box; 18. Filter group; 19. Support column. DETAILED DESCRIPTION

[0025] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-4The present embodiment is a water-cooled gas-fired low-nitrogen condensing vacuum boiler, comprising a recovery condensation tank 1, the inner wall of which is fixedly connected to a mounting plate 2, the upper surface of which is fixedly connected to a plate condenser 3, the inner bottom wall of which is fixedly connected to a delivery pump 4, the output end of which is fixedly connected to a recovery pipe 5, the interior of which is provided with a first one-way valve 6, one end of which is fixedly connected to a heating tank body 7, and hot gas is condensed in the recovery condensation tank 1. Water droplets generated by condensation gather at the bottom of the recovery condensation tank 1, and are returned to the heating tank body 7 by the delivery pump 4 and the recovery pipe 5 with the first one-way valve 6. In this way, the condensed water can be used to supplement the water source in the heating tank body 7, reducing the input of external water resources.

[0028] A suction pump 8 is fixedly connected to the upper surface of the recovery condensation tank 1 , and a heat supply pipe 9 is fixedly connected to the output end of the suction pump 8 . The heat supply pipe 9 is arranged inside the recovery condensation tank 1 .

[0029] The input end of the suction pump 8 is fixedly connected to a heat absorption pipe 10, the surface of which is provided with a second one-way valve 11. The heat absorption pipe 10 is disposed inside the heating tank 7. The input end of the suction pump 8 is connected to the interior of the heating tank 7 through the heat absorption pipe 10 with the second one-way valve 11. The suction pump 8 extracts the residual heat after the heated water in the heating tank 7, and the hot gas is sucked into the recovery condensation tank 1 to liquefy into water.

[0030] A placement plate 12 is fixedly connected to the surface of the heating tank body 7, a combustion tank 13 is fixedly connected to the surface of the placement plate 12, an air pipe 14 is fixedly connected to one side of the upper surface of the combustion tank 13, and a gas pipe 15 is fixedly connected to the other side of the upper surface of the combustion tank 13. The combustion tank 13 obtains air through the air pipe 14 and obtains gas through the gas pipe 15, providing a heat source for the entire system, which is used to heat the water in the heating tank body 7.

[0031] A guide tube 16 is fixedly connected to the upper surface of the combustion pot 13 , and a filter box 17 is fixedly connected to the surface of the guide tube 16 . The filter box 17 performs filtering and other treatments on the hot gas.

[0032] The surface of the filter box 17 is fixedly connected to the interior of the heating tank body 7 through a pipe, and the gas filtered by the filter box 17 enters the interior of the heating tank body 7 through the pipe.

[0033] A filter group 18 is provided inside the filter box 17, and a support column 19 is fixedly connected to the lower surface of the placement plate 12. The filter group 18 inside the filter box 17 filters the gas entering from the guide tube 16 to remove impurities.

[0034] The implementation principle of a water-cooled gas-fired low-nitrogen condensing vacuum boiler in the embodiment of the present application is as follows: the gas supply valve of the combustion tank 13 is opened, and the gas is transported into the combustion tank 13 through the gas pipe 15. At the same time, the valve on the air pipe 14 is opened to allow air to enter the combustion tank 13, ignite the gas in the combustion tank 13, and start combustion to generate heat. The hot gas generated by the combustion tank 13 enters the filter box 17 through the guide pipe 16. In the filter box 17, the hot gas is filtered through the filter group 18 to remove impurities, etc. The filtered gas enters the interior of the heating tank body 7 through the pipeline, and the heat is transferred to the heating tank body 7. The water is heated to a certain temperature. When it is heated to a certain temperature, the personnel starts the suction pump 8. The suction pump 8 extracts the residual heat after the heated water in the heating tank body 7 through the heat absorption pipe 10 under the action of the second one-way valve 11. The extracted hot gas is sent into the recovery condensation tank 1 through the output end of the suction pump 8 and the heat delivery pipe 9. In the recovery condensation tank 1, the hot gas is condensed by the plate condenser 3, and the water droplets generated by the condensation gather at the bottom of the recovery condensation tank 1. The delivery pump 4 is started. Under the action of the first one-way valve 6, the condensed water is sent back to the heating tank body 7 through the recovery pipe 5 to replenish the water source in the heating tank body 7.

[0035] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A water-cooled gas-fired low-nitrogen condensing vacuum boiler, characterized in that: The invention comprises a recovery condensation tank (1), wherein the inner wall of the recovery condensation tank (1) is fixedly connected to a mounting plate (2), the upper surface of the mounting plate (2) is fixedly connected to a plate condenser (3), the inner bottom wall of the recovery condensation tank (1) is fixedly connected to a delivery pump (4), the output end of the delivery pump (4) is fixedly connected to a recovery pipe (5), a first one-way valve (6) is provided inside the recovery pipe (5), and one end of the recovery pipe (5) is fixedly connected to a heating tank body (7).

2. A water-cooled gas-fired low-nitrogen condensing vacuum boiler according to claim 1, characterized in that: The upper surface of the recovery condensation tank (1) is fixedly connected to a suction pump (8), the output end of the suction pump (8) is fixedly connected to a heat supply pipe (9), and the heat supply pipe (9) is arranged inside the recovery condensation tank (1).

3. A water-cooled gas-fired low-nitrogen condensing vacuum boiler according to claim 2, characterized in that: The input end of the suction pump (8) is fixedly connected to a heat absorption pipe (10), a second one-way valve (11) is provided on the surface of the heat absorption pipe (10), and the heat absorption pipe (10) is arranged inside the heating tank body (7).

4. The water-cooled gas-fired low-nitrogen condensing vacuum boiler according to claim 1, characterized in that: A placement plate (12) is fixedly connected to the surface of the heating tank body (7), a combustion tank (13) is fixedly connected to the surface of the placement plate (12), an air pipe (14) is fixedly connected to one side of the upper surface of the combustion tank (13), and a gas pipe (15) is fixedly connected to the other side of the upper surface of the combustion tank (13).

5. A water-cooled gas-fired low-nitrogen condensing vacuum boiler according to claim 4, characterized in that: A flow guide tube (16) is fixedly connected to the upper surface of the combustion tank (13), and a filter box (17) is fixedly connected to the surface of the flow guide tube (16).

6. A water-cooled gas-fired low-nitrogen condensing vacuum boiler according to claim 5, characterized in that: The surface of the filter box (17) is fixedly connected to the interior of the heating tank (7) through a pipeline.

7. The water-cooled gas-fired low-nitrogen condensing vacuum boiler according to claim 5, characterized in that: A filter group (18) is provided inside the filter box (17), and a support column (19) is fixedly connected to the lower surface of the placement plate (12).

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