Waste heat utilization device for low-concentration gas heat supply

Abstract

The utility model belongs to the technical field of waste heat utilization, and particularly relates to a waste heat utilization device for low-concentration gas heat supply, which comprises a heat exchange tank, a heat exchange pipe, a mixing mechanism and a knocking mechanism, the heat exchange pipe is arranged on the heat exchange tank and comprises a curved pipeline and connecting pipes, and the connecting pipes are arranged on two sides of the curved pipeline; the mixing mechanism is arranged between the connecting pipes and comprises a rotating shaft, impellers, mixing blades and oval plates, the two ends of the rotating shaft are rotationally connected to the connecting pipes correspondingly, the impellers located in the connecting pipes are arranged at the two ends of the rotating shaft correspondingly, and in the heat exchange process, airflow drives the mixing mechanism to work; internal heat exchange liquid is stirred through the mixing mechanism, heat is evenly diffused, the heat exchange effect is prevented from being influenced by heat accumulation, in the working process of the mixing mechanism, the knocking mechanism is synchronously driven to work and knock the inner wall of the heat exchange tank, and the situation that heat exchange is influenced by scaling of the inner wall of the heat exchange tank is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat utilization device for low concentration gas heat supply. BACKGROUND

[0002] Gas power generation not only conforms to the national energy conservation and environmental protection policy, but also is a benefit project integrating resource rational allocation and mine safety production, belongs to the mine gas comprehensive utilization project, has good energy saving effect, and the environmental, economic and social benefits are considerable. However, the high-temperature flue gas generated by the generator set is discharged into the atmosphere during gas power generation, which not only causes energy waste, but also aggravates the increasingly serious greenhouse effect, and does not conform to the national policy of energy saving and emission reduction, so the heat of the gas flue gas needs to be recycled.

[0003] At present, when the heat exchanger is used, heat exchange is carried out between the heat conduction pipeline and the heat exchange medium. During heat exchange, heat will gather outside the pipeline and affect the heat exchange effect. Therefore, the application provides a waste heat utilization device for low concentration gas heat supply. SUMMARY

[0004] This part aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the utility model name to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above and / or the problems existing in the prior art waste heat utilization device for low concentration gas heat supply, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a waste heat utilization device for low concentration gas heat supply. In the heat exchange process, the airflow drives the mixing mechanism to work, and the mixing mechanism stirs the internal heat exchange liquid to make the heat spread evenly, avoiding the heat gathering to affect the heat exchange effect. And in the working process of the mixing mechanism, the knocking mechanism is driven to work synchronously to knock the inner wall of the heat exchange tank to avoid the scale on the inner wall of the heat exchange tank affecting the heat exchange.

[0007] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:

[0008] A waste heat utilization device for low concentration gas heat supply comprises:

[0009] A heat exchange tank;

[0010] A heat exchange pipe is arranged on the heat exchange tank, and the heat exchange pipe comprises a curved pipeline and a connecting pipe, and the curved pipeline is provided with a connecting pipe on both sides.

[0011] The mixing mechanism is arranged between the connecting pipes, and comprises a rotating shaft, an impeller, mixing blades and an elliptical disc, both ends of the rotating shaft are rotationally connected to the connecting pipes respectively, the impellers are arranged in the connecting pipes at both ends of the rotating shaft respectively, the mixing blades are arranged in the heat exchange tank at both sides of the rotating shaft respectively, and the elliptical disc is arranged at the center of the rotating shaft.

[0012] The knocking mechanism is arranged in the heat exchange tank and is in contact with the elliptical disc.

[0013] As a preferred scheme of the waste heat utilization device for low-concentration gas heating, the heat exchange tank comprises a tank body, a water inlet pipe and a drain pipe, the water inlet pipe is arranged at the top of the left side of the tank body, and the drain pipe is arranged at the bottom of the left side of the tank body.

[0014] As a preferred scheme of the waste heat utilization device for low-concentration gas heating, the knocking mechanism comprises a support, a sliding rod and a sliding ball, the support is fixed to the inner wall of the heat exchange tank at the top, the sliding rod is arranged on the support in a sliding mode, and the sliding ball is arranged at the lower end of the sliding rod.

[0015] As a preferred scheme of the waste heat utilization device for low-concentration gas heating, when the elliptical disc rotates, the sliding rod continuously rises and falls to knock against the inner wall of the heat exchange tank.

[0016] As a preferred scheme of the waste heat utilization device for low-concentration gas heating, the outer wall of the tank body is provided with a transparent window, and the transparent window is an explosion-proof window.

[0017] As a preferred scheme of the waste heat utilization device for low-concentration gas heating, a sealing gasket is arranged at the connecting position between the rotating shaft and the connecting pipe.

[0018] As a preferred scheme of the waste heat utilization device for low-concentration gas heating, the top end of the sliding rod is provided with a knocking ball.

[0019] Compared with the prior art, the waste gas is introduced into the heat exchange pipe to exchange heat, in the heat exchange process, the airflow drives the mixing mechanism to work, the mixing mechanism is used to stir the internal heat exchange liquid, heat is uniformly diffused, heat aggregation is avoided to affect the heat exchange effect, and in the working process of the mixing mechanism, the knocking mechanism is simultaneously driven to work to knock against the inner wall of the heat exchange tank, and the fouling of the inner wall of the heat exchange tank is avoided to affect the heat exchange. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the technical scheme of the embodiments of the present application clearer, the present application will be described in detail below with reference to the drawings and specific embodiments. Obviously, the drawings described below only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. Among them:

[0021] Figure 1 It is a schematic diagram of the shaft side structure of the present application.

[0022] Figure 2 It is a schematic diagram of the internal structure of the heat exchange tank of the present application.

[0023] Figure 3 It is a schematic diagram of the mixing mechanism structure of the present application.

[0024] Figure 4 It is a schematic diagram of the knocking mechanism structure of the present application.

[0025] In the figure: 100 heat exchange tank, 110 tank body, 120 water inlet pipe, 130 drain pipe, 200 heat exchange pipe, 210 curved pipeline, 220 connecting pipe, 300 mixing mechanism, 310 rotating shaft, 320 impeller, 330 mixing blade, 340 oval disc, 400 knocking mechanism, 410 support, 420 slide rod, 430 slide ball. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0027] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0028] Secondly, the present application is described in detail in combination with the schematic diagram, in the detailed description of the embodiments of the present application, in order to facilitate the description, the cross-sectional view of the device structure will be partially enlarged without general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application here. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0029] In order to make the purposes, technical schemes and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0030] The utility model provides a kind of waste heat utilization device for low concentration gas heating, in heat exchange process, airflow drives mixed mechanism work, utilizes mixed mechanism to agitate internal heat exchange liquid, makes heat spread evenly, avoid heat gathering influence heat exchange effect, and in the working process of mixed mechanism, synchronous drive knocking mechanism work, knock the inner wall of heat exchange tank, avoid heat exchange tank inner wall scale influence heat exchange, please refer to Figures 1-4 Including: heat exchange tank 100, heat exchange pipe 200, mixed mechanism 300 and knocking mechanism 400.

[0031] Heat exchange tank 100 includes tank body 110, water inlet pipe 120 and drain pipe 130, tank body 110 left side top is provided with water inlet pipe 120, tank body 110 left side bottom is provided with drain pipe 130, heat exchange medium passes through water inlet pipe 120 and enters tank body 110, and is discharged after heat exchange through drain pipe 130.

[0032] Heat exchange pipe 200 is arranged on heat exchange tank 100, and heat exchange pipe 200 includes curved duct 210 and connecting pipe 220, and both sides of curved duct 210 are provided with connecting pipe 220, wherein, both ends of curved duct 210 are located outside tank body 110, and both sides of curved duct 210 are symmetrically arranged.

[0033] Mixed mechanism 300 is arranged between connecting pipe 220, and mixed mechanism 300 includes shaft 310, impeller 320, mixing blade 330 and oval disc 340, both ends of shaft 310 are rotatably connected on connecting pipe 220, both ends of shaft 310 are provided with impeller 320 located in connecting pipe 220, both sides of shaft 310 are provided with mixing blade 330 located in heat exchange tank 100, and the center of shaft 310 is provided with oval disc 340.

[0034] Wherein, shaft 310, impeller 320, mixing blade 330 and oval disc 340 are fixedly connected and can rotate synchronously.

[0035] Knocking mechanism 400 is arranged in heat exchange tank 100 and contacts with oval disc 340, and knocking mechanism 400 includes support 410, slide bar 420 and slide ball 430, support 410 is fixed on the top of inner wall of heat exchange tank 100, slide bar 420 is slidably arranged on support 410, and slide ball 430 is arranged at the lower end of slide bar 420.

[0036] Wherein, when oval disc 340 rotates, the outer wall of oval disc 340 pushes slide ball 430, and slide ball 430 drives slide bar 420 to lift and knock in the inner wall of tank body 110.

[0037] The outer wall of tank body 110 is provided with transparent window, and the transparent window uses explosion-proof window, which is convenient for observing the internal working state.

[0038] Sealing pad is arranged between the connecting position of shaft 310 and connecting pipe 220 to avoid leakage.

[0039] The top end of the slide rod 420 is provided with a knocking ball to avoid direct knocking damage to the tank 110.

[0040] In specific use, the heat exchange medium enters the tank 110 through the water inlet pipe 120, is discharged through the drain pipe 130 after heat exchange, high-temperature flue gas is introduced into the curved pipeline 210 for heat exchange, the gas drives the rotating shaft 310 to rotate through the impeller 320, the rotating shaft 310 drives the mixing blade 330 to rotate, the mixing blade 330 stirs the heat exchange medium to make the heat spread evenly, avoids heat aggregation to affect the heat exchange effect, and drives the elliptical disc 340 to rotate when the rotating shaft 310 rotates, the outer wall of the elliptical disc 340 pushes the slide ball 430, the slide ball 430 drives the slide rod 420 to lift and knock on the inner wall of the tank 110 to remove scale, simultaneously drives the knocking mechanism to work, knocks on the inner wall of the heat exchange tank, and avoids scale on the inner wall of the heat exchange tank to affect heat exchange.

[0041] Although the utility model has been described above with reference to the embodiments, various improvements can be made to it and equivalent parts can be substituted for the parts thereof without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each feature in the embodiments disclosed by the utility model can be combined with each other in any way, and the combinations are not exhaustively described in the specification only for the consideration of saving space and resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A waste heat utilization device for low-concentration gas heating, characterized by, The utility model provides a heat exchange tank, heat exchange pipe and knocking mechanism, which are combined to realize the functions of heat exchange, mixing and knocking. The heat exchange tank (100) comprises a tank body (110), a water inlet pipe (120) and a drain pipe (130), the water inlet pipe (120) is arranged on the top of the left side of the tank body (110), and the drain pipe (130) is arranged on the bottom of the left side of the tank body (110). The knocking mechanism (400) comprises a support (410), a sliding rod (420) and a sliding ball (430), the support (410) is fixed to the inner wall of the heat exchange tank (100), the sliding rod (420) is arranged on the support (410) in a sliding mode, and the sliding ball (430) is arranged at the lower end of the sliding rod (420). When the elliptical disc (340) rotates, the sliding rod (420) continuously rises and falls to knock the inner wall of the heat exchange tank (100). The outer wall of the tank body (110) is provided with a transparent window, and the transparent window is an explosion-proof window.

2. A waste heat utilization device for low-concentration gas heating according to claim 1, characterized in that, A sealing gasket is arranged at the connecting position between the rotating shaft (310) and the connecting pipe (220).

3. A waste heat utilization device for low-concentration gas heating according to claim 1, characterized in that, The top end of the sliding rod (420) is provided with a knocking ball.

4. The waste heat utilization device for low-concentration gas heat supply according to claim 3, characterized in that, ​ 5. The waste heat utilization device for low-concentration gas heating according to claim 2, characterized in that, ​ 6. The waste heat utilization device for low-concentration gas heating according to claim 1, characterized in that, ​ 7. A waste heat utilization device for low-concentration gas heating according to claim 3, characterized in that, ​

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