Continuous gas injection lifting system for viscous fluid
A continuous gas injection system addresses the inefficiencies of batch-wise thick fluid transport by creating negative pressure for continuous flow and degassing, enhancing efficiency and reducing energy consumption and blockages.
Patent Information
- Application Number
- CN202422295864.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The batch delivery method of viscous fluid in the prior art leads to clogging of pipelines, high energy consumption and low efficiency, making it difficult to achieve continuous conveying and degassing.
The continuous gas injection lifting system is adopted, and the high-pressure injected air flow generates negative pressure in the gas injection mixer. The continuous suction and transportation of viscous fluid are achieved through the pneumatic ball valve and gate valve control, and degassing is carried out in combination with the principle of venturi pipe.
Continuous transport of viscous fluid is achieved, pipeline blockage is avoided, transportation efficiency is improved, energy consumption is reduced, and effective degassing effect is achieved.
Smart Images
Figure CN223096565U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of high - elevation transportation of viscous fluids, and particularly relates to a continuous gas injection lifting system for viscous fluids. Background Technique
[0002] In specific process links such as environmental protection, chemical industry, and specific concentration and precipitation in petroleum, it is necessary to transport the precipitated viscous fluid in the sedimentation tank to subsequent process links for subsequent use. Considering cost and energy consumption reasons, the sedimentation tank process link is mostly placed at a low position in the system. Therefore, in order to facilitate the subsequent process link use of the viscous fluid, it is necessary to lift it to a certain elevation and achieve a degassing effect during the lifting process. At present, the traditional viscous fluid lifting process uses compressed air for transportation, that is, the positive - pressure dense - phase transportation method. Its disadvantages are that it can only adopt batch - type transportation, with a long deployment cycle, and is prone to pipeline blockage; it has a large air consumption and high system energy consumption. When arching occurs in the transportation pipeline, it will also cause the system to paralyze. Summary of the Invention
[0003] The problem to be solved by the utility model is to provide a continuous gas injection lifting system for viscous fluids with high transmission efficiency and effective prevention of pipeline blockage.
[0004] To solve the above - mentioned technical problems, the technical solution adopted by the utility model is: a continuous gas injection lifting system for viscous fluids, including an air compressor, the outlet of the air compressor is connected to an air storage tank, the outlet of the air storage tank is connected to a gas transmission pipeline, the outlet of the gas transmission pipeline is connected to a first branch pipeline and a second branch pipeline, an electric pressure regulating valve is arranged on the first branch pipeline, the outlet of the first branch pipeline is fixedly connected to the incident end of a gas injection mixer, the outlet end of the gas injection mixer is connected to a fluid transmission pipeline, a first gate valve is arranged on the second branch pipeline, the outlet of the second branch pipeline is connected to the pneumatic control device of a pneumatic ball valve, the inlet end of the pneumatic ball valve is connected to a sedimentation tank pipeline, and the outlet end of the pneumatic ball valve is connected to the injection end of the gas injection mixer.
[0005] Further, the gas injection mixer includes an incident pipe, a mass transfer cavity pipe body flange - connected to the outlet end of the incident pipe, a diffusion pipe flange - connected to the outlet end of the mass transfer cavity pipe body, and an injection pipe welded and fixed to the lower end of the mass transfer cavity pipe body. A front - pressure transmitter is arranged on the incident pipe, a back - pressure transmitter is arranged on the diffusion pipe, and a vacuum pressure transmitter is arranged on the mass transfer cavity pipe body.
[0006] Further, the air compressor is an integrated air compressor dryer.
[0007] Further, a condensate filter is arranged on the gas transmission pipeline.
[0008] Further, a check valve and a second gate valve are sequentially arranged on one side of the fluid delivery pipeline close to the gas injection mixer.
[0009] Compared with the prior art, the advantages and beneficial effects of the present utility model are as follows:
[0010] The continuous gas injection lifting system for viscous fluid of the present utility model uses compressed air as the incident fluid. When the high-pressure incident air flow passes through the gas injection mixer, a negative pressure is generated inside it. The viscous fluid is continuously sucked into the gas injection mixer at the injection end and is transported into the fluid delivery pipeline under the traction of the flowing energy of the high-pressure incident gas, and enters the subsequent process. The viscous fluid is continuously sucked and transported, effectively avoiding the blockage caused by the stagnation of the viscous fluid in the pipeline, improving the transportation efficiency, saving the process cost, and moreover, the local negative pressure in the air flow injection mixer degasses the viscous fluid to meet the degassing requirement, and has a good concentration effect on the viscous fluid. Description of the Drawings
[0011] Figure 1 is a schematic process structure diagram of the continuous gas injection lifting system for viscous fluid of the present utility model.
[0012] Figure 2 is a schematic structure diagram of the gas injection mixer of the continuous gas injection lifting system for viscous fluid of the present utility model.
[0013] In the figure: 1 - air compressor; 2 - air storage tank; 3 - gas delivery pipeline; 4 - first branch pipeline; 5 - second branch pipeline; 6 - electric pressure regulating valve; 7 - gas injection mixer; 8 - fluid delivery pipeline; 9 - first gate valve; 10 - pneumatic ball valve; 11 - sedimentation tank; 12 - incident pipe; 13 - mass transfer chamber pipe body; 14 - diffusion pipe; 15 - injection pipe; 16 - front pressure transmitter; 17 - rear pressure transmitter; 18 - vacuum pressure transmitter; 19 - condensate filter; 20 - check valve; 21 - second gate valve. Detailed Embodiments
[0014] The following detailed description will be made on the specific embodiments of the present utility model with reference to the drawings.
[0015] As Figure 1 、 Figure 2As shown in the figure, a continuous gas injection lifting system for viscous fluids includes an air compressor 1. The outlet of the air compressor 1 is connected to a gas storage tank 2. The outlet of the gas storage tank 2 is connected to a gas transmission pipeline 3. The outlet of the gas transmission pipeline 3 is connected to a first branch pipeline 4 and a second branch pipeline 5. An electric pressure regulating valve 6 is provided on the first branch pipeline 4. The outlet of the first branch pipeline 4 is fixedly connected to the inlet end of a gas injection mixer 7. The outlet end of the gas injection mixer 7 is connected to a fluid transmission pipeline 8. A first gate valve 9 is provided on the second branch pipeline 5. The outlet of the second branch pipeline 5 is connected to the pneumatic control device of a pneumatic ball valve 10. The inlet end of the pneumatic ball valve 10 is connected to a sedimentation tank 11 through a pipeline. The outlet end of the pneumatic ball valve 10 is connected to the injection end of the gas injection mixer 7.
[0016] Further, the gas injection mixer 7 includes an inlet pipe 12, a mass transfer chamber pipe body 13 flange-connected to the outlet end of the inlet pipe 12, a diffusion pipe 14 flange-connected to the outlet end of the mass transfer chamber pipe body 13, and an injection pipe 15 welded and fixed to the lower end of the mass transfer chamber pipe body 13. A front pressure transmitter 16 is provided on the inlet pipe 12. A back pressure transmitter 17 is provided on the diffusion pipe 14. A vacuum pressure transmitter 18 is provided on the mass transfer chamber pipe body 13. Among them, the inlet of the inlet pipe 12 is connected to the outlet of the first branch pipeline 4. The outlet of the diffusion pipe 14 is connected to the fluid transmission pipeline 8. The inlet of the injection pipe 15 is connected to the outlet end of the pneumatic ball valve 10. And front pressure transmitter 16, back pressure transmitter 17 and vacuum pressure transmitter 18 are provided on the gas injection mixer 7, which can monitor the pressure at each point in real time. Since the injection flow rate is affected by the vacuum degree, i.e., negative pressure, of the gas injection mixer 7, it can help the staff judge whether the injection flow rate requirement is met under the current pressure.
[0017] Specifically, the present utility model uses compressed air as the inlet fluid. The high-pressure inlet air flow enters the gas injection mixer 7. Among them, the gas injection mixer 7 adopts the Venturi tube principle. Specifically, after the high-pressure inlet gas passes through the nozzle of the inlet pipe 12, due to the reduction of the flow path diameter, the gas is compressed, the flow rate increases, and the pressure decreases. Therefore, a negative pressure is formed in the mass transfer chamber pipe body 13. At the same time, the first gate valve 9 on the second branch pipeline 5 is opened, and the high-pressure inlet gas controls the pneumatic ball valve 10 to open. The viscous fluid is continuously sucked into the mass transfer chamber pipe body 13. The injected viscous fluid is pulled by the kinetic energy of the high-pressure inlet gas flow, converges and enters the diffusion pipe 14 for uniform diffusion. Due to the expansion of the flow path, the gas expands, the flow rate decreases, and the pressure increases. The viscous fluid is continuously transported to the fluid transmission pipeline 8 and enters the next process.
[0018] Among them, an air storage tank 2 is arranged at the rear end of the air compressor to ensure that the air source enters the air storage tank 2 for pressure-balanced air supply, so that the pressure is constant during the jet mass transfer process of the gas jet mixer 7, ensuring the stability of the entrainment flow rate. In addition, the electrically controlled pressure regulating valve 6 is arranged to control the entrainment flow rate of the entrained viscous fluid. Specifically, first, the on-site liquid level gauge, material level gauge, concentration meter, etc. are used to calculate the required entrainment flow rate according to the requirements of liquid level balance or concentration limit, so as to adjust the opening degree of the electrically controlled pressure regulating valve 6, thereby regulating the incident gas flow pressure and the negative pressure in the mass transfer chamber pipe body 13. The change of the negative pressure will cause the change of the suction force of the entrained viscous fluid, and then control the flow rate of the entrained viscous fluid.
[0019] Furthermore, the air compressor 1 is an integrated air compressor dryer, and a condensate filter 19 is arranged on the gas transmission pipeline 3. The utility model adopts a gas jet lifting process with gas as the medium to prevent the dilution and dissolution of the viscous fluid caused by the use of water medium mass transfer inside the system. Therefore, both the integrated air compressor dryer and the condensate filter 19 in the utility model are used to remove the moisture in the air source, keep the air source dry and clean, effectively prevent the moisture in the gas from diluting and dissolving the viscous fluid, and thus affect the effect of the next process.
[0020] Furthermore, a check valve 20 and a second gate valve 21 are sequentially arranged on one side of the fluid transmission pipeline 8 close to the gas jet mixer 7. The check valve 20 can effectively prevent the backflow of the viscous fluid and cause system failures, and the second gate valve 21 is used to control the opening and closing of the fluid transmission pipeline 8.
[0021] In addition, the gas jet lifting system of the utility model can be installed at a low position or a high position relative to the sedimentation tank 11. The utility model preferably adopts a low-position installation. The incident air flow energy is mainly converted into the kinetic energy and potential energy of the mixed fluid pressure at the outlet of the diffusion pipe 14 for conveying to a high position; for high-position installation, the incident air flow energy is mainly converted into the kinetic energy and potential energy of the lifting height when the viscous fluid at the inlet of the entrainment pipe 15 is sucked.
[0022] For the continuous gas jet lifting system of the viscous fluid of the utility model, compressed air is used as the incident fluid. When the high-pressure incident air flow passes through the gas jet mixer 7, a negative pressure is generated inside it. The viscous fluid is continuously sucked into the gas jet mixer 7 at the entrainment end and is transported into the fluid transmission pipeline 8 under the traction of the kinetic energy of the high-pressure incident gas flow and enters the subsequent process. The viscous fluid is continuously sucked and transported, effectively avoiding the blockage caused by the stagnation of the viscous fluid in the pipeline, improving the transportation efficiency, saving the process cost, and moreover, the local negative pressure in the air flow jet mixer 7 degasses the viscous fluid to meet the degassing requirements and plays a good concentration role on the viscous fluid.
[0023] The above has described in detail an embodiment of the present utility model, but the above content is only a preferred embodiment of the present utility model and cannot be considered as limiting the scope of implementation of the present utility model. All equivalent changes and improvements made in accordance with the scope of application of the present utility model shall still fall within the scope covered by the patent of the present utility model.
Claims
1. A continuous gas injection lifting system for viscous fluids, characterized in that: It includes an air compressor, an air storage tank is connected to the outlet of the air compressor, a gas transmission pipeline is connected to the outlet of the air storage tank, a first branch pipeline and a second branch pipeline are connected to the outlet of the gas transmission pipeline, an electric pressure regulating valve is arranged on the first branch pipeline, the outlet of the first branch pipeline is fixedly connected to the incident end of a gas injection mixer, the outlet end of the gas injection mixer is connected to a fluid transmission pipeline, a first gate valve is arranged on the second branch pipeline, the outlet of the second branch pipeline is connected to the pneumatic control device of a pneumatic ball valve, the inlet end of the pneumatic ball valve is connected to a sedimentation tank pipeline, and the outlet end of the pneumatic ball valve is connected to the injection end of the gas injection mixer.
2. The continuous gas injection lifting system for viscous fluids according to claim 1, characterized in that: The gas injection mixer includes an incident pipe, a mass transfer chamber pipe body flange-connected to the outlet end of the incident pipe, a diffusion pipe flange-connected to the outlet end of the mass transfer chamber pipe body, and an injection pipe welded and fixed to the lower end of the mass transfer chamber pipe body. A front pressure transmitter is arranged on the incident pipe, a rear pressure transmitter is arranged on the diffusion pipe, and a vacuum pressure transmitter is arranged on the mass transfer chamber pipe body.
3. The continuous gas injection lift system for viscous fluids according to claim 1, characterized in that: The air compressor is an integrated air compressor dryer.
4. The continuous gas injection lifting system for viscous fluids according to claim 1, characterized in that: A condensate filter is arranged on the gas transmission pipeline.
5. The continuous gas injection lift system for viscous fluids according to claim 1, characterized in that: A check valve and a second gate valve are sequentially arranged on the fluid transmission pipeline on the side close to the gas injection mixer.