Combined cycle unit heating equipment
By introducing a dust removal mechanism and a circulation access mechanism into the combined cycle heating unit, the problems of dust accumulation and equipment damage in flue gas waste heat heating equipment have been solved, achieving efficient dust removal and waste heat utilization.
Patent Information
- Application Number
- CN202520222229.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Dust easily accumulates in the pipes of flue gas waste heat heating equipment in gas turbine circulating units, requiring regular shutdowns for dust removal. Furthermore, the equipment is continuously heated by flue gas during non-heating seasons, leading to equipment damage.
A combined cycle heating unit was designed, which includes a dust removal mechanism and a circulation access mechanism. The dust is removed by using a motor to drive a rotating wheel and a heat-conducting plate, and the circulating water is preheated by a valve during the non-heating period to avoid damage to the pipeline.
It effectively cleans dust, improves the absorption rate of waste heat from flue gas, prevents pipe damage, and enhances the efficiency and reliability of heating equipment.
Smart Images
Figure CN223954256U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of heating, especially relates to a combined cycle unit heating equipment. BACKGROUND
[0002] Developing clean and renewable new energy has become the common goal of all countries in the world. With the continuous progress of solar energy, wind energy, water energy and other new energy technologies, the cost of new energy power generation is gradually reduced, and its share in the global power generation market is also rising year by year.
[0003] The gas turbine is a kind of high-efficiency and clean power generation equipment, which has the advantages of quick start, flexible scheduling and adaptation to various working conditions, and the flue gas heat can be fully utilized. The flue gas heat is first absorbed by the circulating pipeline to preheat the water vapor of the gas turbine, and then the circulating water in the heating equipment is heated to 45-60 degrees to provide circulating heating for the houses near the power plant. However, the following problems may exist in actual operation:
[0004] 1. In order to absorb more waste heat in the flue gas, the contact area of the heating pipeline in the flue gas is increased. However, there are usually a large amount of dust and toxic gases in the flue gas, and the dust will accumulate on the heating pipeline. After long-term work, the heat absorbed by the heating pipeline from the flue gas waste heat will be blocked by the accumulated dust, resulting in a gradual decrease in the heat absorbed by the heating equipment from the flue gas waste heat, and a decrease in the heating effect;
[0005] 2. Since the flue gas waste heat heating equipment is usually used only in autumn and winter, the heating equipment will not work in spring and summer. However, the heating pipeline in the flue gas will continue to be heated by the flue gas waste heat. Since there is no water flow to circulate in the heating pipeline, the heating pipeline in the flue gas pipeline will be damaged by continuous high-temperature heating. CONTENT OF THE UTILITY MODEL
[0006] In order to overcome the defects of the prior art pointed out above, the present inventors have made in-depth research and, after a lot of creative labor, completed the present utility model.
[0007] Specifically, the technical problem to be solved by the present utility model is to provide a combined cycle unit heating equipment to solve the technical problem that the flue gas waste heat heating equipment in the current gas turbine circulating unit is easy to accumulate dust when used, needs to be regularly stopped for dust removal, and the effect of absorbing flue gas waste heat becomes worse, and the equipment is still heated by flue gas continuously during the period when heating is not needed.
[0008] To solve the above technical problems, the present utility model provides the following technical solutions:
[0009] The utility model provides a combined cycle unit heating equipment, including cycle unit flue gas treatment box, the inner chamber of cycle unit flue gas treatment box fixed mounting has cycle heating pipe, the outer surface of cycle heating pipe is slidably installed and has the ash cleaning mechanism, the outer surface of cycle heating pipe is fixedly installed and has cycle access mechanism, the inner wall of cycle unit flue gas treatment box is fixedly installed and has the coal economizer,
[0010] The ash cleaning mechanism includes a fixed frame, the bottom of the fixed frame is fixedly connected with the bottom of the inner chamber of the cycle unit flue gas treatment box, a motor is fixedly installed on the inner surface of the fixed frame, and a rotating shaft is fixedly installed on the output end of the motor through a speed reduction mechanism.
[0011] As an improved technical solution, the ash cleaning mechanism further includes a rotating wheel, the inner surface of the rotating wheel is fixedly connected with the outer surface of the rotating shaft, a first connecting block is fixedly installed on the inner surface of the rotating wheel, and a connecting rod is rotatably installed on the outer surface of the first connecting block.
[0012] As an improved technical solution, the ash cleaning mechanism further includes a heat-conducting plate, a sliding frame is fixedly installed on the outer surface of the heat-conducting plate, and a second connecting block is fixedly installed on the inner surface of the sliding frame.
[0013] As an improved technical solution, the inner surface of the heat-conducting plate is slidably connected with the outer surface of the cycle heating pipe, the top of the sliding frame penetrates through the cycle unit flue gas treatment box and extends to the inside of the cycle unit flue gas treatment box, and the outer surface of the second connecting block is rotatably connected with the inner surface of the connecting rod.
[0014] As an improved technical solution, the cycle access mechanism includes a first valve, the inner surface of the first valve is fixedly connected with the outer surface of the cycle heating pipe, a first circulation pipe is communicated with the bottom of the first valve, and the rear end of the first circulation pipe is communicated with the outer surface of the coal economizer.
[0015] As an improved technical solution, the cycle access mechanism further includes a second valve, the inner surface of the second valve is fixedly connected with the outer surface of the cycle heating pipe, a second circulation pipe is communicated with the bottom of the second valve, and the rear end of the second circulation pipe is communicated with the outer surface of the coal economizer.
[0016] After adopting the above technical scheme, the utility model has the beneficial effects that:
[0017] 1. The utility model discloses a design of cleaning the accumulated dust of the combined cycle unit heating equipment, through the cooperation of the motor, the rotating shaft, the rotating wheel and the first connecting block, the cooperation of the first connecting block, the connecting rod, the second connecting block and the sliding frame, and the cooperation of the sliding frame and the heat conducting plate, the dust accumulated on the heat conducting plate and the circulating heating pipe is cleaned down, the problem that the dust in the flue gas is accumulated on the circulating heating pipe and causes the heat absorbed by the heating equipment from the flue gas to gradually reduce is avoided, and the flue gas waste heat absorption rate is improved.
[0018] 2. The utility model discloses a design of using the heating equipment for the circulating unit when not using, through the cooperation of the first valve, the second valve, the first circulating pipe and the second circulating pipe, and the cooperation of the first circulating pipe, the second circulating pipe and the economizer, the power generation water is preheated by the flue gas waste heat first, and then is heated by the high-temperature flue gas, the problem that the heating equipment is continuously heated by the flue gas waste heat in the non-heating season and causes the pipeline damage is avoided. DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to these drawings without the creative labor, and wherein:
[0020] Figure 1 It is the whole three-dimensional structure schematic diagram of the combined cycle unit heating equipment of the utility model.
[0021] Figure 2 It is the cross section three-dimensional structure schematic diagram of the circulating unit flue gas treatment box of the combined cycle unit heating equipment of the utility model.
[0022] Figure 3 It is the circulating unit flue gas treatment box of the combined cycle unit heating equipment of the utility model Figure 2 It is the enlarged view structure schematic diagram of the middle A.
[0023] Figure 4 It is the three-dimensional rear view structure schematic diagram of the circulating unit flue gas treatment box of the combined cycle unit heating equipment of the utility model.
[0024] DRAWING MARK EXPLANATION:
[0025] 1, circulating unit flue gas treatment box; 2, circulating heating pipe; 3, soot cleaning mechanism; 31, fixed frame; 32, motor; 33, rotating shaft; 34, rotating wheel; 35, No. 1 connecting block; 36, connecting rod; 37, heat conduction plate; 38, sliding frame; 39, No. 2 connecting block; 4, circulating access mechanism; 41, No. 1 valve; 42, No. 1 circulating pipe; 43, No. 2 valve; 44, No. 2 circulating pipe; 5, coal saving device. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.
[0028] Meanwhile, "and / or" or "and / or" appearing throughout the text means that it includes three schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes.
[0029] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.
[0030] As shown in Figure 1 , Figure 2 and Figure 3 , the present embodiment provides a combined cycle unit heating device, which comprises a circulating unit flue gas treatment box 1, a circulating heating pipe 2 fixedly installed in the inner cavity of the circulating unit flue gas treatment box 1, a soot cleaning mechanism 3 slidably installed on the outer surface of the circulating heating pipe 2, a circulating access mechanism 4 fixedly installed on the outer surface of the circulating heating pipe 2, and a coal saving device 5 fixedly installed on the inner wall of the circulating unit flue gas treatment box 1.
[0031] The ash cleaning mechanism 3 comprises a fixed frame 31, the bottom of the fixed frame 31 is fixedly connected with the bottom of the inner cavity of the circulating unit flue gas treatment box 1, the inner surface of the fixed frame 31 is fixedly installed with a motor 32, and the output end of the motor 32 is fixedly installed with a rotating shaft 33 through a speed reduction mechanism.
[0032] The motor 32 is electrically connected with an external power supply, the motor 32 is electrically connected with the external power supply, the coal saving device 5 is used for recycling heat energy in flue gas, transmitting to feed water, improving the temperature of the feed water, reducing heat loss in flue gas, and thus improving the thermal efficiency of the boiler.
[0033] As shown in Figure 1 , Figure 2 and Figure 3 , the ash cleaning mechanism 3 further comprises a rotating wheel 34, the inner surface of the rotating wheel 34 is fixedly connected with the outer surface of the rotating shaft 33, the inner surface of the rotating wheel 34 is fixedly installed with a first connecting block 35, and the outer surface of the first connecting block 35 is rotatably installed with a connecting rod 36.
[0034] As shown in Figure 1 , Figure 2 and Figure 3 , the ash cleaning mechanism 3 further comprises a heat conduction plate 37, the outer surface of the heat conduction plate 37 is fixedly installed with a sliding frame 38, and the inner surface of the sliding frame 38 is fixedly installed with a second connecting block 39.
[0035] As shown in Figure 1 , Figure 2 and Figure 3 , the inner surface of the heat conduction plate 37 is slidably connected with the outer surface of the circulating heating pipe 2, the top of the sliding frame 38 penetrates through the circulating unit flue gas treatment box 1 and extends to the inside of the circulating unit flue gas treatment box 1, and the outer surface of the second connecting block 39 is rotatably connected with the inner surface of the connecting rod 36.
[0036] As shown in Figure 1 and Figure 4 , the circulating access mechanism 4 comprises a first valve 41, the inner surface of the first valve 41 is fixedly connected with the outer surface of the circulating heating pipe 2, the bottom of the first valve 41 is communicated with a first circulating pipe 42, and the rear end of the first circulating pipe 42 is communicated with the outer surface of the coal saving device 5.
[0037] As shown in Figure 1 and Figure 4 , the circulating access mechanism 4 further comprises a second valve 43, the inner surface of the second valve 43 is fixedly connected with the outer surface of the circulating heating pipe 2, the bottom of the second valve 43 is communicated with a second circulating pipe 44, and the rear end of the second circulating pipe 44 is communicated with the outer surface of the coal saving device 5.
[0038] In use, the heating device fills the circulating heating pipe 2 with the heating circulating water, so that the flue gas waste heat in the circulating unit flue gas treatment box 1 heats the circulating water in the circulating heating pipe 2, and the heat-conducting plate 37 increases the flue gas waste heat received by the circulating heating pipe 2; when the dust in the flue gas accumulates on the heat-conducting plate 37 and the circulating heating pipe 2, the motor 32 drives the rotating wheel 34 through the rotating shaft 33, the rotating wheel 34 drives the connecting rod 36 to move through the first connecting block 35, the connecting rod 36 drives the sliding frame 38 to slide through the second connecting block 39, and the sliding frame 38 drives the heat-conducting plate 37 to move up and down, so that the accumulated dust is removed; when the heating device is not used, the first valve 41 and the second valve 43 control the circulating heating pipe 2 to be connected to the first circulating pipe 42 and the second circulating pipe 44 respectively, so that the water inlet end of the economizer 5 is connected, so that the circulating water is first heated by the flue gas waste heat, and then enters the economizer 5 to be heated by the high-temperature flue gas.
[0039] It should be understood that the use of these embodiments is only for the purpose of illustrating the present application and is not intended to limit the scope of protection of the present application. In addition, it should also be understood that after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or deformations to the present application, and all of these equivalent forms also fall within the protection scope defined by the claims attached to the present application.
Claims
1. A combined cycle unit heating device, comprising a cycle unit flue gas treatment box (1), characterized in that: The inner cavity of the circulating unit flue gas treatment box (1) is fixedly installed with a circulating heating pipe (2), the outer surface of the circulating heating pipe (2) is slidably installed with an accumulated ash cleaning mechanism (3), the outer surface of the circulating heating pipe (2) is fixedly installed with a circulating access mechanism (4), and the inner wall of the circulating unit flue gas treatment box (1) is fixedly installed with an economizer (5). The accumulated ash cleaning mechanism (3) comprises a fixing frame (31), the bottom of the fixing frame (31) is fixedly connected with the bottom of the inner cavity of the circulating unit flue gas treatment box (1), the inner surface of the fixing frame (31) is fixedly installed with a motor (32), and the output end of the motor (32) is fixedly installed with a rotating shaft (33) through a speed reduction mechanism.
2. The combined cycle unit heating apparatus according to claim 1, characterized in that: The accumulated ash cleaning mechanism (3) further comprises a rotating wheel (34), the inner surface of the rotating wheel (34) is fixedly connected with the outer surface of the rotating shaft (33), the inner surface of the rotating wheel (34) is fixedly installed with a first connecting block (35), and the outer surface of the first connecting block (35) is rotatably installed with a connecting rod (36).
3. The combined cycle unit heating apparatus according to claim 1, characterized in that: The accumulated ash cleaning mechanism (3) further comprises a heat conduction plate (37), the outer surface of the heat conduction plate (37) is fixedly installed with a sliding frame (38), and the inner surface of the sliding frame (38) is fixedly installed with a second connecting block (39).
4. The combined cycle unit heating apparatus according to claim 3, characterized in that: The inner surface of the heat conduction plate (37) is slidably connected with the outer surface of the circulating heating pipe (2), the top of the sliding frame (38) penetrates through the circulating unit flue gas treatment box (1) and extends into the circulating unit flue gas treatment box (1), and the outer surface of the second connecting block (39) is rotatably connected with the inner surface of the connecting rod (36).
5. The combined cycle unit heating apparatus according to claim 1, characterized in that: The circulating access mechanism (4) comprises a first valve (41), the inner surface of the first valve (41) is fixedly connected with the outer surface of the circulating heating pipe (2), the bottom of the first valve (41) is communicated with a first circulating pipe (42), and the rear end of the first circulating pipe (42) is communicated with the outer surface of the economizer (5).
6. The combined cycle unit heating apparatus according to claim 1, characterized in that: The circulating access mechanism (4) further comprises a second valve (43), the inner surface of the second valve (43) is fixedly connected with the outer surface of the circulating heating pipe (2), the bottom of the second valve (43) is communicated with a second circulating pipe (44), and the rear end of the second circulating pipe (44) is communicated with the outer surface of the economizer (5).