Steam boiler
By setting up heat recovery components and adjusting structures in the steam boiler, and using high-temperature flue gas to preheat water, the problem of heat waste in the high-temperature waste gas of the steam boiler is solved, and the energy utilization rate is improved and production costs are reduced.
Patent Information
- Application Number
- CN202420845597.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The heat of the high-temperature exhaust gas generated by existing steam boilers during use is directly discharged, resulting in a low energy utilization rate and a problem of heat waste.
A steam boiler including a heat recovery assembly is designed. By setting the first and second heat exchange sections of the circulating pipe between the smoke exhaust pipe and the water inlet pipe, the high-temperature flue gas heat preheated the water, and the circulating pump ensures the stable flow of the medium. , Thermal insulation cover and Thermal insulation cover improve energy utilization, and the baffle adjusts the flue gas flow rate to extend the heat exchange time.
Effectively recovering and utilizing high-temperature exhaust gas heat increases energy utilization, reduces the energy required for steam generation, and reduces production costs.
Smart Images
Figure CN222143015U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical agent production, in particular to a steam boiler. Background Art
[0002] During the production process of chemical agents such as de-mite agents and preservatives and fungicides, the reactor used in production needs to be heated to provide regulation for production. The heating method is generally through the high-temperature steam generated by the steam boiler. However, the steam boiler will generate high-temperature exhaust gas during use. The relevant technology usually filters the high-temperature exhaust gas and directly discharges it, resulting in heat waste of the high-temperature exhaust gas and low energy utilization. Utility Model Content
[0003] The main purpose of the utility model is to provide a steam boiler, aiming to at least solve the problem of waste of heat of high-temperature exhaust gas and low energy utilization rate in the related technology.
[0004] In order to achieve the above-mentioned purpose, the utility model provides a steam boiler, comprising:
[0005] a boiler body, the boiler body having a smoke exhaust pipe for exhausting high-temperature smoke and a water inlet pipe for inletting water; and,
[0006] A heat recovery component, the heat recovery component includes a circulation pipeline with a heat exchange medium flowing therein, the circulation pipeline includes a first heat exchange section, a second heat exchange section, and a connecting section connecting the first heat exchange section and the second heat exchange section, the first heat exchange section is thermally connected to the smoke exhaust pipe, and the second heat exchange section is thermally connected to the water inlet pipe.
[0007] In one embodiment, the first heat exchange section is wound around the outer surface of the smoke exhaust pipe;
[0008] The second heat exchange section is wound around the outer surface of the water inlet pipe.
[0009] In one embodiment, the outer surface of the smoke exhaust pipe is provided with a first surrounding groove surrounding the circumference thereof, and the first heat exchange section is wound in the first surrounding groove;
[0010] The outer surface of the water inlet pipe is provided with a second surrounding groove which surrounds the water inlet pipe along its circumference, and the second heat exchange section is wound in the second surrounding groove.
[0011] In one embodiment, the heat recovery assembly further comprises a circulation pump disposed on the circulation pipeline;
[0012] The connecting section includes a first connecting section and a second connecting section connecting the first heat exchange section and the second heat exchange section, the first connecting section is used to allow the heat exchange medium in the circulation pipeline to flow from the first heat exchange section to the second heat exchange section, and the second connecting section is used to allow the heat exchange medium in the circulation pipeline to flow from the second heat exchange section to the first heat exchange section.
[0013] In one embodiment, the steam boiler further comprises a heat insulation cover disposed on the boiler body, the heat insulation cover having a heat insulation cavity;
[0014] The first connecting section is at least partially located in the thermal insulation cavity.
[0015] In one embodiment, the first connecting section is disposed adjacent to the outer side wall of the boiler body;
[0016] The heat insulation cover and the outer side wall of the boiler body enclose the heat insulation cavity.
[0017] In one embodiment, the steam boiler further includes a heat insulation cover mounted on the first heat exchange section and the second heat exchange section.
[0018] In one embodiment, two opposite inner side walls of the smoke exhaust pipe are each provided with a plurality of obliquely arranged baffles.
[0019] In one embodiment, one end of the baffle is rotatably connected to the inner wall of the smoke exhaust pipe, and a torsion spring is provided at the rotatable connection between the baffle and the inner wall of the smoke exhaust pipe.
[0020] In one embodiment, the plurality of baffles on two opposite inner side walls of the smoke exhaust pipe are staggered.
[0021] In the technical solution of the utility model, the steam boiler includes a boiler body and a heat recovery component, and the heat recovery component includes a first heat exchange section, a second heat exchange section and the connecting section. In this way, the first heat exchange section is thermally connected to the smoke exhaust pipe of the boiler body, and the second heat exchange section is thermally connected to the water inlet pipe. When in use, the heat of the high-temperature flue gas discharged from the smoke exhaust pipe is transferred to the heat exchange medium of the entire circulation pipeline through the first heat exchange section, so that its temperature rises, and the high-temperature heat exchange medium flows to the second heat exchange section through the connecting section, thereby preheating the water in the water inlet pipe, reducing the energy required by the boiler body to convert the water entering the water inlet pipe into steam, and the overall structure realizes heat recovery and utilization, and the energy utilization rate is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0023] Figure 1 A schematic structural diagram of an embodiment of a steam boiler provided by the utility model;
[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the heat recovery component;
[0025] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the middle exhaust pipe.
[0026] Description of Figure Numbers:
[0027] 100. Steam boiler; 1. Boiler body; 11. Smoke exhaust pipe; 111. First surrounding groove; 112. Baffle; 12. Water inlet pipe; 121. Second surrounding groove; 2. Heat recovery component; 21. Circulation pipeline; 211. First heat exchange section; 212. Second heat exchange section; 213. First connecting section; 214. Second connecting section; 22. Circulation pump; 3. Heat insulation cover; 31. Heat insulation chamber; 4. Heat insulation cover.
[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0032] During the production process of the mite remover, the reactor used for production needs to be heated to improve the regulation of the mite remover production. The heating method is generally through the high-temperature steam generated by the steam boiler. However, the steam boiler will generate high-temperature exhaust gas when in use. The related technology usually filters the high-temperature exhaust gas and directly discharges it, resulting in heat waste of the high-temperature exhaust gas and low energy utilization.
[0033] The utility model provides a steam boiler, aiming to at least solve the problem of waste of heat of high-temperature exhaust gas and low energy utilization rate in the related technology.
[0034] See also Figure 1 and Figure 2 In one embodiment of the utility model, a steam boiler 100 includes a boiler body 1 and a heat recovery component 2, wherein the boiler body 1 has a smoke exhaust pipe 11 for exhausting high-temperature smoke, and a water inlet pipe 12 for taking in water; the heat recovery component 2 includes a circulation pipe 21 in which a heat exchange medium flows, and the circulation pipe 21 includes a first heat exchange section 211, a second heat exchange section 212, and a connecting section connecting the first heat exchange section 211 and the second heat exchange section 212, the first heat exchange section 211 is thermally connected to the smoke exhaust pipe 11, and the second heat exchange section 212 is thermally connected to the water inlet pipe 12.
[0035] In the technical solution of the utility model, the steam boiler 100 includes a boiler body 1 and a heat recovery component 2, and the heat recovery component 2 includes a first heat exchange section 211, a second heat exchange section 212 and the connecting section. In this way, the first heat exchange section 211 is thermally connected to the smoke exhaust pipe 11 of the boiler body 1, and the second heat exchange section 212 is thermally connected to the water inlet pipe 12. When in use, the heat of the high-temperature flue gas discharged from the smoke exhaust pipe 11 is transferred to the heat exchange medium of the entire circulation pipeline 21 through the first heat exchange section 211, so that its temperature rises, and the high-temperature heat exchange medium flows to the second heat exchange section 212 through the connecting section, thereby preheating the water in the water inlet pipe 12, reducing the energy required for the boiler body 1 to convert the water entering the water inlet pipe 12 into steam, and the overall structure realizes heat recovery and utilization, and the energy utilization rate is high.
[0036] There are many ways to conduct heat between the first heat exchange section 211 and the second heat exchange section 212 and the smoke exhaust pipe 11 and the water inlet pipe 12. For example, the first heat exchange section 211 can be directly close to the smoke exhaust pipe 11. In order to improve the efficiency of heat exchange and thus improve the utilization rate of the heat of high-temperature flue gas, in an embodiment of the present utility model, the first heat exchange section 211 is wound around the outer surface of the smoke exhaust pipe 11, and the second heat exchange section 212 is wound around the outer surface of the water inlet pipe 12. In this way, heat conduction by winding can improve the heat exchange efficiency between the circulation pipe 21 and the smoke exhaust pipe 11 and the water inlet pipe 12.
[0037] Furthermore, in an embodiment of the utility model, a first surrounding groove 111 is provided on the outer surface of the smoke exhaust pipe 11 and surrounds the smoke exhaust pipe 11 along its circumference, and the first heat exchange section 211 is wound in the first surrounding groove 111; a second surrounding groove 121 is provided on the outer surface of the water inlet pipe 12 and surrounds the smoke exhaust pipe 11 along its circumference, and the second heat exchange section 212 is wound in the second surrounding groove 121; in this way, the contact area between the first heat exchange section 211 and the smoke exhaust pipe 11 is larger, and the contact area between the second heat exchange section 212 and the water inlet pipe 12 is also larger, which greatly improves the efficiency of heat exchange and thus improves the utilization rate of energy.
[0038] In order to ensure the stable flow of the heat exchange medium in the heat exchange pipe, in an embodiment of the utility model, the heat recovery component 2 also includes a circulation pump 22 arranged on the circulation pipe 21; the connecting section includes a first connecting section 213 and a second connecting section 214 connecting the first heat exchange section 211 and the second heat exchange section 212, the first connecting section 213 is used for the heat exchange medium in the circulation pipe 21 to flow from the first heat exchange section 211 to the second heat exchange section 212, and the second connecting section 214 is used for the heat exchange medium in the circulation pipe 21 to flow from the second heat exchange section 212 to the first heat exchange section 211. In this way, by starting the circulation pump 22, the temperature of the heat exchange medium in the entire circulation pipeline 21 increases after passing through the first heat exchange section 211, and the high-temperature heat exchange structure flows to the second heat exchange section 212 through the second connecting section 214, transferring heat to the water in the water inlet pipe 12. After the temperature of the heat exchange medium decreases, it flows to the first heat exchange section 211 through the second connecting section 214 to complete the cycle.
[0039] In order to reduce excessive heat loss of the high-temperature heat exchange medium when the first connection section 213 flows to the second heat exchange section 212, in an embodiment of the utility model, the steam boiler 100 further includes a heat insulation cover 3 provided on the boiler body 1, and the heat insulation cover 3 has a heat insulation cavity 31; the first connection section 213 is at least partially located in the heat insulation cavity 31. In this way, the heat loss of the heat exchange medium when flowing in the first connection section 213 is reduced by the heat insulation cover 3, thereby improving the energy utilization rate.
[0040] The present design does not limit the specific material of the heat insulation cover 3, and the heat insulation cover 3 can be made of rock wool, polyurethane foam material, etc.
[0041] It can be understood that the outer wall of the boiler body 1 is usually made of thermal insulation material. In order to save the material of the heat insulation cover 3, in an embodiment of the utility model, the first connecting section 213 is arranged adjacent to the outer wall of the boiler body 1; the heat insulation cover 3 and the outer wall of the boiler body 1 are enclosed to form the heat insulation cavity 31; in this way, the material of the heat insulation cover 3 is reduced by the outer wall of the boiler body 1, thereby reducing the cost.
[0042] Of course, in order to reduce heat loss during heat exchange, in an embodiment of the present utility model, the steam boiler 100 further includes a heat preservation cover 4 sleeved on the first heat exchange section 211 and the second heat exchange section 212 .
[0043] In order to reduce the flow rate of the high-temperature flue gas in the exhaust pipe, thereby increasing the heat exchange time between the high-temperature flue gas and the heat exchange medium in the first heat exchange section 211, in the embodiment of the utility model, the two opposite inner side walls of the exhaust pipe 11 are provided with a plurality of obliquely arranged baffles 112. In this way, the arrangement of the baffles 112 makes the discharge speed of the high-temperature flue gas slower, the heat exchange rate higher, and the energy utilization rate higher.
[0044] It is understandable that the baffle 112 reduces the flow rate of the high-temperature flue gas in the exhaust pipe, which may cause the high-temperature flue gas to be unable to be discharged in time, and the pressure in the exhaust pipe is too high, causing a safety accident. Therefore, in the embodiment of the utility model, one end of the baffle 112 is rotatably connected to the inner wall of the exhaust pipe 11, and a torsion spring is provided at the rotation connection between the baffle 112 and the inner wall of the exhaust pipe 11. In this way, when the air pressure in the exhaust pipe is too high, it will impact the baffle 112, causing the baffle 112 to rotate, accelerating the discharge of high-temperature flue gas, thereby reducing the pressure. After the pressure returns to normal, the baffle 112 is reset under the action of the torsion spring.
[0045] Furthermore, in the embodiment of the utility model, the plurality of baffles 112 on the two opposite inner side walls of the exhaust pipe 11 are staggered. In this way, the flow path of the high-temperature flue gas in the exhaust pipe is curved through the staggered arrangement of the baffles 112, thereby extending the heat conduction time between the high-temperature flue gas and the first heat exchange section 211, and further improving the energy utilization rate.
[0046] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A steam boiler, It is characterized in that include: a boiler body, the boiler body having a smoke exhaust pipe for exhausting high-temperature smoke and a water inlet pipe for inletting water; and, A heat recovery component, the heat recovery component includes a circulation pipeline with a heat exchange medium flowing therein, the circulation pipeline includes a first heat exchange section, a second heat exchange section, and a connecting section connecting the first heat exchange section and the second heat exchange section, the first heat exchange section is thermally connected to the smoke exhaust pipe, and the second heat exchange section is thermally connected to the water inlet pipe.
2. The steam boiler according to claim 1, It is characterized in that The first heat exchange section is wound around the outer surface of the smoke exhaust pipe; The second heat exchange section is wound around the outer surface of the water inlet pipe.
3. The steam boiler according to claim 2, It is characterized in that The outer surface of the smoke exhaust pipe is provided with a first surrounding groove surrounding the circumference thereof, and the first heat exchange section is wound in the first surrounding groove; The outer surface of the water inlet pipe is provided with a second surrounding groove which surrounds the water inlet pipe along its circumference, and the second heat exchange section is wound in the second surrounding groove.
4. The steam boiler according to claim 1, It is characterized in that The heat recovery assembly also includes a circulation pump disposed on the circulation pipeline; The connecting section includes a first connecting section and a second connecting section connecting the first heat exchange section and the second heat exchange section, the first connecting section is used to allow the heat exchange medium in the circulation pipeline to flow from the first heat exchange section to the second heat exchange section, and the second connecting section is used to allow the heat exchange medium in the circulation pipeline to flow from the second heat exchange section to the first heat exchange section.
5. The steam boiler according to claim 4, It is characterized in that The steam boiler further comprises a heat insulation cover arranged on the boiler body, the heat insulation cover having a heat insulation cavity; The first connecting section is at least partially located in the thermal insulation cavity.
6. The steam boiler according to claim 5, It is characterized in that The first connecting section is disposed adjacent to the outer side wall of the boiler body; The heat insulation cover and the outer side wall of the boiler body enclose the heat insulation cavity.
7. The steam boiler according to claim 1, It is characterized in that The steam boiler further comprises a heat-insulating cover sleeved on the first heat exchange section and the second heat exchange section.
8. The steam boiler according to claim 1, It is characterized in that The two opposite inner side walls of the smoke exhaust pipe are both provided with a plurality of obliquely arranged baffles.
9. The steam boiler according to claim 8, It is characterized in that One end of the baffle is rotatably connected to the inner wall of the smoke exhaust pipe, and a torsion spring is provided at the rotatable connection between the baffle and the inner wall of the smoke exhaust pipe.
10. The steam boiler according to claim 8 or 9, It is characterized in that The multiple baffles on the two opposite inner side walls of the smoke exhaust pipe are staggered.
Citation Information
Cited By
Universal steam boiler
CN224316129U