Low-temperature methanol washing residual pressure power generation device
The low-temperature methanol washing residual pressure power generation device uses high-pressure gas to drive the impeller to generate electricity, which solves the problems of valve erosion and static pressure energy waste, realizes energy reuse and system stability, and reduces production costs and environmental pollution.
Patent Information
- Application Number
- CN202520758951.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-22
AI Technical Summary
In existing low-temperature methanol washing units, valves are susceptible to erosion by high-pressure liquids, resulting in shortened lifespans, wasted static pressure energy, and increased system energy consumption.
A low-temperature methanol washing residual pressure power generation device is designed. By connecting the pipe body, valve body, pump body and generator, the device uses high-pressure gas to drive the impeller to generate electricity, recovering residual pressure energy and generating electricity.
It enables energy reuse, reduces production costs, reduces dependence on fossil fuels, reduces pollutant emissions, stabilizes system pressure, and lowers production risk.
Smart Images
Figure CN223908271U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a residual pressure power generation device technical field, concretely is a low temperature methanol washing residual pressure power generation device. BACKGROUND
[0002] Low temperature methanol washing is with cold methanol as absorption solvent, utilizes the excellent characteristic of methanol at low temperature to acid gas solubility, removes acid gas in raw material gas. The process generally contains an absorption tower and multiple analytical towers, the absorption tower absorbs acid gas, the analytical tower analyzes acid gas and returns lean liquid methanol to the absorption tower, reaches recycling methanol.
[0003] At present, the design process of low temperature methanol washing device is usually that lean methanol is absorbed hydrogen sulfide and carbon dioxide gas in shift gas under 5.8MPa pressure, needs to be reduced to 1.6MPa through self-operated pressure reducing valve, and this way makes the valve be easily eroded by high-pressure liquid on the one hand, and the life is obviously shortened, and on the other hand, static pressure energy is wasted, improves the energy consumption of system, for this, we propose a low temperature methanol washing residual pressure power generation device. UTILITY MODEL CONTENT
[0004] The utility model discloses a low temperature methanol washing residual pressure power generation device, possesses the advantage of energy recycling, reduce production cost, energy saving and emission reduction and environmental protection, stable system pressure and reduce production risk coefficient, solves the problem that the valve is easily eroded by high-pressure liquid on the one hand, and the life is obviously shortened, and on the other hand, static pressure energy is wasted, improves the energy consumption of system.
[0005] To realize above-mentioned purpose, the utility model provides following technical scheme: a low temperature methanol washing residual pressure power generation device, including connecting pipe body, the first valve body is arranged in the middle end of connecting pipe body, the left end of connecting pipe body positive surface is connected with the draft branch pipe, the draft branch pipe one end is provided with the second valve body, the right end of connecting pipe body positive surface is connected with the draft tube, the draft tube and draft branch pipe are connected with the pump body, the left and right ends of pump body are provided with left bearing seat and right bearing seat respectively, the left bearing seat and right bearing seat are provided with the shaft, the outer surface of the shaft in pump body interior is fixedly installed with the impeller, the outer surface of the shaft right end is fixedly installed with the shaft coupling, the right end of shaft coupling is fixedly installed with the generator.
[0006] Preferably, the left and right ends of the connecting pipe body are respectively provided with an air inlet connecting flange and an air outlet connecting flange.
[0007] Preferably, the right end of the pump body is provided with an air outlet port communicated with the draft tube, and the left end of the front surface of the pump body is provided with an air inlet port communicated with the draft branch pipe.
[0008] Preferably, the pump body and the left and right ends of the generator bottom are provided with support frames, and the bottom of the support frame is provided with a support base.
[0009] Preferably, the rotating shaft passes through the inside of the pump body, and the right end of the rotating shaft extends to the right side of the right bearing seat.
[0010] Preferably, the outer surface of the impeller is coated with a first protective layer, and the first protective layer is a tungsten carbide coating.
[0011] Preferably, the outer side of the first protective layer is coated with a second protective layer, and the second protective layer is an aluminum oxide ceramic coating.
[0012] Compared with the prior art, the utility model has the beneficial effects as follows:
[0013] 1. The utility model discloses can recover the energy that possibly be directly empty or through the energy that wastes away by pressure reducing device, help to reduce comprehensive energy consumption, make energy get more sufficient utilization.
[0014] 2. The utility model discloses the electric energy that the production equipment operation of enterprise internal can be used to the electric energy that the excess pressure power generation produces, reduces the electric quantity that purchases from the power grid.
[0015] 3. The utility model discloses when the electric quantity that the enterprise excess pressure power generation produces has surplus, can incorporate the electric energy of surplus into the power grid and sell.
[0016] 4. The utility model discloses the ability of excess pressure power generation, can realize energy saving and emission reduction and environmental protection, stabilize system pressure, reduce the purpose of production danger coefficient. DRAWINGS
[0017] Fig. 1 It is the first perspective structure schematic drawing of the utility model;
[0018] Fig. 2 It is the support frame cross section structure schematic drawing under the state of the utility model's plan view;
[0019] Fig. 3 It is the first protective layer structure schematic drawing of the utility model.
[0020] In the drawing: 1, connecting pipe body; 2, first valve body; 3, flow guide branch pipe; 4, second valve body; 5, support frame; 6, support base; 7, flow guide pipe; 8, air inlet connection flange; 9, exhaust connection flange; 10, pump body; 11, impeller; 12, left bearing seat; 13, generator; 14, rotating shaft; 15, air inlet port; 16, first protective layer; 17, second protective layer; 18, right bearing seat; 19, shaft coupling; 20, exhaust port. DETAILED DESCRIPTION
[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0022] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0024] The connecting pipe body 1, the first valve body 2, the flow guide branch pipe 3, the second valve body 4, the support frame 5, the support base 6, the flow guide pipe 7, the gas inlet flange 8, the gas outlet flange 9, the pump body 10, the impeller 11, the left bearing seat 12, the generator 13, the rotating shaft 14, the gas inlet port 15, the first protective layer 16, the second protective layer 17, the right bearing seat 18, the shaft coupling 19 and the gas outlet port 20 of the present application are all general standard parts or parts known to those skilled in the art, and their structures and principles can be known by the present skilled person through technical manuals or through conventional experimental methods.
[0025] Embodiment one
[0026] Please refer to Figs. 1-3The utility model provides a kind of technical scheme shown in the utility model: a kind of low temperature methanol washing residual pressure power generation device, including connecting pipe body 1, the middle end of connecting pipe body 1 is provided with first valve body 2, the left end of the front of connecting pipe body 1 is communicated with flow guide branch pipe 3, one end of flow guide branch pipe 3 is provided with second valve body 4, the right end of the front of connecting pipe body 1 is communicated with flow guide pipe 7, flow guide pipe 7 and flow guide branch pipe 3 are communicated with pump body 10, the left and right ends of pump body 10 are provided with left bearing seat 12 and right bearing seat 18 respectively, second shaft 14 is arranged between left bearing seat 12 and right bearing seat 18, impeller 11 is fixedly installed on the outer surface of second shaft 14 located in the inside of pump body 10, the outer surface of the right end of second shaft 14 is fixedly installed with coupling 19, and the right end of coupling 19 is fixedly installed with generator 13.
[0027] The left and right ends of connecting pipe body 1 are provided with air inlet connection flange 8 and exhaust connection flange 9 respectively, the rear side of the right end of pump body 10 is provided with exhaust port 20 communicated with flow guide pipe 7, the left end of the front of pump body 10 is provided with air inlet port 15 communicated with flow guide branch pipe 3, second shaft 14 passes through the inside of pump body 10, and the right end of second shaft 14 extends to the right side direction of right bearing seat 18.
[0028] The utility model discloses a kind of technical scheme: through the setting of air inlet connection flange 8 and exhaust connection flange 9, after being connected with corresponding equipment, when needing to carry out residual pressure power generation, second valve body 4 is opened after first valve body 2 is closed, then, high-pressure gas can enter pump body 10 through air inlet connection flange 8, connecting pipe body 1, flow guide branch pipe 3, second valve body 4 and air inlet port 15, and the flowing high-pressure gas is driven second shaft 14 to rotate by impeller 11 before entering flow guide pipe 7 through exhaust port 20, second shaft 14 can drive generator 13 to work by coupling 19 when rotating, and the power generated by generator 13 can be transmitted into storage battery or directly used by enterprise by transmission cable, reduce the number of electricity purchase from external power grid, reduce electricity expenditure, thereby reduce overall production cost, improve the economic benefit of enterprise, if the electric quantity generated by enterprise residual pressure power generation has surplus, still can the excess electric energy is incorporated into grid and is sold, simultaneously, reduce the dependence on traditional fossil energy, correspondingly reduce the pollutant emissions generated by fossil energy combustion, such as carbon dioxide, sulfur dioxide, nitrogen oxides, help to reduce environmental pollution, realize green development, and the device is a kind of clean energy conversion mode, when pump body 10 or generator 13 needs maintenance or overhaul, only need to open first valve body 2 after second valve body 4 is closed, then can be restored to original design process in first time, without any influence to production system.
[0029] Example two
[0030] On the basis of example one, the utility model as Figs. 1-3As shown, the left and right ends of the pump body 10 and the bottom of the generator 13 are provided with support frames 5, and the bottom of the support frame 5 is provided with a support base 6.
[0031] The technical scheme of the present application: through the setting of the support frame 5 and the support base 6, the stability of the pump body 10 and the generator 13 during use is ensured.
[0032] Embodiment three
[0033] On the basis of the first embodiment, the utility model discloses Figs. 1-3 As shown, the outer surface of the impeller 11 is coated with a first protective layer 16, and the first protective layer 16 is a tungsten carbide coating, the outer side of the first protective layer 16 is coated with a second protective layer 17, and the second protective layer 17 is an aluminum oxide ceramic coating.
[0034] The technical scheme of the present application: through the setting of the first protective layer 16, the surface of the impeller 11 has extremely high hardness and wear resistance, and good impact resistance and corrosion resistance, and the second protective layer 17 is set, which can further enhance the hardness and corrosion resistance, and improve the high temperature resistance of the surface of the impeller 11, so that the impeller 11 can work normally in high temperature environment and chemical corrosion environment, thereby expanding the application range of the impeller 11, and prolonging the service life of the device.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited to the scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalent, without departing from the essence and scope of the present application.
Claims
1. A low temperature methanol wash back pressure power generation device, comprising a connecting pipe body (1), characterized in that: The left end of the front of the connecting pipe body (1) is connected with a flow guide branch pipe (3), one end of the flow guide branch pipe (3) is provided with a second valve body (4), the right end of the front of the connecting pipe body (1) is connected with a flow guide pipe (7), the flow guide pipe (7) and the flow guide branch pipe (3) are connected with a pump body (10), the left and right ends of the pump body (10) are respectively provided with a left bearing seat (12) and a right bearing seat (18), a rotating shaft (14) is arranged between the left bearing seat (12) and the right bearing seat (18), the outer surface of the rotating shaft (14) in the pump body (10) is fixedly installed with an impeller (11), the outer surface of the right end of the rotating shaft (14) is fixedly installed with a shaft coupling (19), the right end of the shaft coupling (19) is fixedly installed with a generator (13).
2. The low temperature methanol wash excess pressure power generation device according to claim 1, characterized in that: The left and right ends of the connecting pipe body (1) are respectively provided with an air inlet connecting flange (8) and an exhaust connecting flange (9).
3. The low temperature methanol wash excess pressure power generation device according to claim 1, characterized in that: The right end of the pump body (10) is provided with an exhaust port (20) communicated with the flow guide pipe (7), the left end of the front of the pump body (10) is provided with an air inlet port (15) communicated with the flow guide branch pipe (3).
4. The low temperature methanol wash excess pressure power generation device according to claim 1, characterized in that: The left and right ends of the bottom of the pump body (10) and the generator (13) are provided with support frames (5), and the bottom of the support frame (5) is provided with a support base (6).
5. The low temperature methanol wash excess pressure power generation device according to claim 4, characterized in that: The rotating shaft (14) passes through the inner side of the pump body (10), and the right end of the rotating shaft (14) extends to the right side of the right bearing seat (18).
6. The low temperature methanol wash excess pressure power generation device according to claim 1, characterized in that: The outer surface of the impeller (11) is coated with a first protective layer (16), and the first protective layer (16) is a tungsten carbide coating.
7. The low temperature methanol wash excess pressure power generation device according to claim 6, characterized in that: The outer side of the first protective layer (16) is coated with a second protective layer (17), and the second protective layer (17) is an aluminum oxide ceramic coating.