Steam boiler waste heat recovery device

Abstract

The utility model provides a waste heat recovery device of a steam boiler, which relates to the technical field of production and processing and comprises a cylindrical steam boiler body, a first discharge pipe communicated with the steam boiler body is mounted on the periphery of the steam boiler body close to the right side of the top, and a first electric control valve is sleeved on the periphery of the first discharge pipe. The end, away from the steam boiler body, of the first discharging pipe communicates with a square recycling box fixedly connected to the top of the steam boiler body, and the interior of the recycling box extends to the top and is provided with a cylindrical second discharging pipe. The top opening of the second discharge pipe is connected with a leakage net in a clamped mode, the outer diameter of the leakage net is consistent with the inner diameter of the second discharge pipe, the leakage net is made of iron metal materials, and then the center of the top of the leakage net is connected with a conveying pipe communicated with external water supply equipment in a clamped mode. Waste is effectively avoided, and meanwhile, the influence of waste gas on the environment is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing, in particular to a steam boiler waste heat recovery device. Background Art

[0002] Steam boiler refers to boiler equipment that produces steam. It is a special equipment. Its design, production, factory and installation must be subject to supervision by the national technical supervision department. Users need to obtain a boiler use license before they can operate the boiler.

[0003] In the prior art, a steam boiler is a filtering device for producing steam. When a steam boiler is in operation, it needs to heat water to generate steam. The steam boiler also generates exhaust gas while generating steam, and these exhaust gases contain a large amount of waste heat. If these exhaust gases are directly discharged, they will pollute the environment. Moreover, if the large amount of waste heat in the exhaust gas is not utilized, it will be very wasteful. Therefore, we propose a steam boiler waste heat recovery device. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings existing in the prior art. A steam boiler is a filtering device for producing steam. When a steam boiler is in operation, it is necessary to heat water to generate steam. The steam boiler also generates exhaust gas while generating steam, and these exhaust gases contain a large amount of waste heat. If these exhaust gases are directly discharged, they will pollute the environment. Moreover, if the large amount of waste heat in the exhaust gas is not utilized, it will be very wasted.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A steam boiler waste heat recovery device includes a cylindrical steam boiler body, a first discharge pipe connected to the steam boiler body is installed on the periphery of the steam boiler body near the top right side, and a first electric control valve is sleeved on the periphery of the first discharge pipe, and then the first discharge pipe is connected to the end away from the steam boiler body. A square recovery box is fixed to the top of the steam boiler body, and a cylindrical second discharge pipe is installed at the top of the recovery box. A leakage net with an outer diameter consistent with the inner diameter of the second discharge pipe and made of iron metal is clamped at the top opening of the second discharge pipe, and a delivery pipe connected to an external water supply device is clamped at the top center of the leakage net, and a spray head is installed at the bottom of the delivery pipe and inside the second discharge pipe.

[0007] As a preferred solution of the present invention, support legs inclined at forty-five degrees are symmetrically installed near both sides of the periphery of the steam boiler body, and a square base is installed at the end of the support legs away from the steam boiler body.

[0008] As a preferred solution of the present invention, a first filter layer with an outer diameter consistent with the inner diameter of the second discharge pipe and made of filter cotton material is installed near the bottom of the second discharge pipe, and a second filter layer made of activated carbon material is installed on the top of the first filter layer and located inside the second discharge pipe, and a third filter layer made of sand and gravel material is installed on the top of the second filter layer.

[0009] As a preferred solution of the present invention, a submersible pump is installed on the left side of the bottom of the recovery box, a water suction pipe is connected to the left side of the submersible pump, and a water supply pipe is installed on the top of the submersible pump.

[0010] As a preferred solution of the present invention, a liquid level sensor is further installed inside the recovery box near the right side, and the liquid level sensor is fixedly connected to the inner wall of the recovery box.

[0011] As a preferred solution of the present invention, a recovery pipe is installed on the front of the recovery box, and a second electric control valve is sleeved on the periphery of the recovery pipe. The water supply pipe is connected to the recovery pipe, and the recovery pipe is connected to the steam boiler body.

[0012] As a preferred solution of the present invention, the first discharge pipe passes through the inner wall of the recovery box and is connected to the second discharge pipe.

[0013] The technical effect of adopting the above further solution is that the first discharge pipe is directly connected to the second discharge pipe, so that the exhaust gas can be discharged directly.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the present utility model, through the arrangement of the spray head and the delivery pipe, the delivery pipe can be effectively connected to the external water source, so that the water source can be effectively sprayed out through the spray head, and the sprayed water can directly spray the exhaust gas that enters the first discharge pipe from the steam boiler body and reaches the second discharge pipe, so that the harmful substances in the exhaust gas can be adsorbed, and a large amount of waste heat in the exhaust gas will heat the spray water, and the heated spray water will be filtered through the third filter layer, the second filter layer and the first filter layer, so as to separate the harmful substances from the heated water, and the separated water is transported to the recovery pipe through the submersible pump, and then transported to the steam boiler body through the recovery pipe. The heated water directly flows into the steam boiler body, which can effectively save the energy required for the steam boiler body to heat the cold water, thereby effectively saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal planar structure of the recycling box of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the sprinkler head of the utility model.

[0019] Legend: 1. Steam boiler body; 11. Support legs; 12. Base; 2. First discharge pipe; 3. First electric control valve; 4. Recovery tank; 41. Submersible pump; 42. Suction pipe; 43. Water supply pipe; 44. Liquid level sensor; 45. Recovery pipe; 46. Second electric control valve; 5. Second discharge pipe; 51. First filter layer; 52. Second filter layer; 53. Third filter layer; 6. Net; 7. Delivery pipe; 8. Sprinkler head. DETAILED DESCRIPTION

[0020] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to relevant references, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] Example 1

[0025] like Figure 1-3 As shown, the utility model provides a technical solution: a steam boiler waste heat recovery device, comprising a cylindrical steam boiler body 1, a first discharge pipe 2 connected to the steam boiler body 1 is installed on the periphery of the steam boiler body 1 near the top right side, and a first electric-controlled valve 3 is sleeved on the periphery of the first discharge pipe 2, and then the end of the first discharge pipe 2 away from the steam boiler body 1 is connected to a square recovery box 4 fixed to the top of the steam boiler body 1, the interior of the recovery box 4 extends to the top where a cylindrical second discharge pipe 5 is installed, and at the top opening of the second discharge pipe 5, a leakage net 6 with an outer diameter consistent with the inner diameter of the second discharge pipe 5 and made of iron metal is clamped to facilitate the discharge of treated exhaust gas, and then a delivery pipe 7 connected to an external water supply device is clamped at the top center of the leakage net 6, and then a spray head 8 is installed at the bottom of the delivery pipe 7 and inside the second discharge pipe 5.

[0026] Example 2

[0027] like Figure 1-3 As shown, support legs 11 inclined at forty-five degrees are symmetrically installed near both sides of the periphery of the steam boiler body 1, and a square base 12 is installed at the end of the support legs 11 away from the steam boiler body 1, which can effectively filter the steam boiler body 1.

[0028] A first filter layer 51 made of filter cotton material is installed near the bottom of the second discharge pipe 5, and its outer diameter is consistent with the inner diameter of the second discharge pipe 5. A second filter layer 52 made of activated carbon material is installed on the top of the first filter layer 51 and located inside the second discharge pipe 5. A third filter layer 53 made of sand and gravel material is installed on the top of the second filter layer 52, which can effectively filter harmful substances in the exhaust gas.

[0029] A submersible pump 41 is installed near the bottom left side of the recovery box 4, and a water pumping pipe 42 is connected to the left side of the submersible pump 41. A water supply pipe 43 is installed on the top of the submersible pump 41 to effectively transport the heated water.

[0030] A liquid level sensor 44 is also installed near the right side of the recovery box 4. The liquid level sensor 44 is fixed to the inner wall of the recovery box 4 and can effectively grasp the liquid level in the recovery box 4.

[0031] A recovery pipe 45 is installed on the front of the recovery box 4, and a second electric control valve 46 is sleeved on the periphery of the recovery pipe 45. The water supply pipe 43 is connected to the recovery pipe 45, and the recovery pipe 45 is connected to the steam boiler body 1, which can effectively recover the heated water.

[0032] The first discharge pipe 2 passes through the inner wall of the recovery box 4 and is connected to the second discharge pipe 5, which facilitates the waste gas treatment.

[0033] The working process of the present invention is as follows: when using a steam boiler waste heat recovery device to recover and utilize waste heat, first, when the steam boiler body 1 is in operation, exhaust gas is generated. At this time, the first electrically controlled valve 3 is opened to allow the exhaust gas to flow along the first discharge pipe 2 to the second discharge pipe 5. At the same time, the external water supply equipment is turned on to supply water to the delivery pipe 7. The delivered water is sprayed out through the sprinkler head 8 to adsorb harmful substances in the exhaust gas, and the waste heat in the exhaust gas also heats the water. The heated water passes through the third filter layer 53, the second filter layer 52 and the first filter layer 51 to filter out harmful substances in the water, and the hot water falls into the recovery tank 4. At this time, the submersible pump 41 and the second electrically controlled valve 46 are turned on. The submersible pump 41 draws out the hot water in the recovery tank 4 through the water pumping pipe 42, and sends it to the recovery pipe 45 through the water supply pipe 43. The hot water is transported to the steam boiler body 1 through the recovery pipe 45 to complete the waste heat utilization. Through design, the present invention can effectively recycle and utilize the waste heat of the steam boiler, effectively avoid waste, and also avoid the impact of exhaust gas on the environment.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam boiler waste heat recovery device, comprising a cylindrical steam boiler body (1), characterized in that: A first discharge pipe (2) connected to the steam boiler body (1) is installed on the outer periphery of the steam boiler body (1) near the right side of the top, and a first electric control valve (3) is sleeved on the outer periphery of the first discharge pipe (2), and a recovery box (4) in a square shape and fixed to the top of the steam boiler body (1) is connected to the end of the first discharge pipe (2) away from the steam boiler body (1), and a cylindrical second discharge pipe (5) is installed at the top of the recovery box (4), and a leakage net (6) made of iron metal with an outer diameter consistent with the inner diameter of the second discharge pipe (5) is clamped at the top opening of the second discharge pipe (5), and a delivery pipe (7) connected to an external water supply device is clamped at the top center of the leakage net (6), and a spray head (8) is installed at the bottom of the delivery pipe (7) and inside the second discharge pipe (5).

2. A steam boiler waste heat recovery device according to claim 1, characterized in that: Support legs (11) inclined at 45 degrees are symmetrically installed near both sides of the periphery of the steam boiler body (1), and a square base (12) is installed at the end of the support legs (11) away from the steam boiler body (1).

3. The steam boiler waste heat recovery device according to claim 1, characterized in that: A first filter layer (51) having an outer diameter consistent with the inner diameter of the second discharge pipe (5) and made of filter cotton is installed near the bottom of the second discharge pipe (5), and a second filter layer (52) made of activated carbon is installed on the top of the first filter layer (51) and located inside the second discharge pipe (5), and a third filter layer (53) made of sand and gravel is installed on the top of the second filter layer (52).

4. The steam boiler waste heat recovery device according to claim 1, characterized in that: A submersible pump (41) is installed near the left side of the bottom of the recovery box (4), and a water pumping pipe (42) is connected to the left side of the submersible pump (41), and a water supply pipe (43) is installed on the top of the submersible pump (41).

5. The steam boiler waste heat recovery device according to claim 1, characterized in that: A liquid level sensor (44) is also installed near the right side of the recovery box (4), and the liquid level sensor (44) is fixed to the inner wall of the recovery box (4).

6. The steam boiler waste heat recovery device according to claim 4, characterized in that: A recovery pipe (45) is installed on the front of the recovery box (4), and a second electric control valve (46) is sleeved on the periphery of the recovery pipe (45). The water supply pipe (43) is connected to the recovery pipe (45), and the recovery pipe (45) is connected to the steam boiler body (1).

7. The steam boiler waste heat recovery device according to claim 1, characterized in that: The first discharge pipe (2) passes through the inner wall of the recovery box (4) and is connected to the second discharge pipe (5).

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