Self-circulation device for medicament mixing
By designing a self-circulation device in the agent mixing tank, the precipitation problem after the drug mixing tank is discontinued for a long time is solved, uniform mixing of the agent and water is achieved, the pump condition is stabilized, and the quality of reaction with the brine is improved.
Patent Information
- Application Number
- CN202420025387.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-04
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-01-04
AI Technical Summary
The bottom precipitation will occur after the chemical mixing tank is deactivated for a long time, resulting in unstable pump conditions, high density precipitation increases the motor load, and the clearer mixed liquid on the top causes the motor speed to exceed the speed, which may cause accidents. At the same time, the density of the chemical mixing liquid is different, and the reaction with the brine does not meet the standards, which does not meet the process requirements.
A self-circulation device for mixing agents is designed. By setting a circulation pump and a normally closed valve in the liquid outlet pipe and connecting it with the reflux pipe, the self-circulation mixing of the agent and water is achieved, avoiding precipitation, and keeping the fluid in a flowing state. The refluxed fluid plays a role in stirring the fluid in the container and improving the mixing effect.
Through the self-circulation device, the agent and water are maintained uniformly, precipitation is avoided, the working conditions of the pump are stabilized, the quality of reaction with the brine is improved, and the process requirements are met.
Smart Images
Figure CN222753005U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a medicine liquid mixing device of a medicine pool, in particular to a self-circulating device for mixing medicines. Background Art
[0002] In the process of natural gas extraction and transportation, in order to meet the requirements of production, process, safety, etc., the formation brine produced in the well needs to be treated. An important part of the treatment process is the reaction between the reagent and the brine. The function of the reagent mixing tank is to mix the reagent and water in a certain proportion, and then inject it into the brine through a pump to carry out the next process.
[0003] It was found in production that after the reagent mixing tank was out of use for a long time, bottom sediment would be generated. After it was put into use again, the following problems would occur: 1. It would cause an unstable effect on the working condition of the pump. The bottom sediment with higher density would easily increase the load on the motor, and the clearer mixed liquid on the top would easily cause the motor to overspeed and cause accidents. 2. The density of the reagent mixed liquid was different, and the reaction with the brine was not up to standard and did not meet the process requirements. Utility Model Content
[0004] The utility model provides a self-circulating device for mixing reagents, which performs self-circulating mixing on reagents and water before injecting the reagent liquid into brine, thereby avoiding precipitation in the reagent pool, affecting the normal operation of the pump and reducing the reaction quality with the brine.
[0005] The utility model provides a self-circulating device for mixing medicines, comprising a container for mixing medicines, wherein the container is connected with a liquid outlet pipe, wherein the liquid outlet pipe is provided with a circulation pump and a normally closed valve in sequence along the moving direction of the internal fluid, wherein the liquid outlet pipe is located between the circulation pump and the normally closed valve and is connected with a reflux pipe, wherein the reflux pipe is communicated with the container, and wherein the reflux pipe can make part of the fluid inside the liquid outlet pipe reflux into the container when the normally closed valve is in an open state.
[0006] In one embodiment, a normally open valve is provided on the reflux pipe, and the normally open valve can adjust the opening degree, so that when the normally closed valve is in a closed state, the reflux pipe allows all the fluid in the liquid outlet pipe to return to the interior of the container, and when the normally closed valve is in an open state, the reflux pipe allows part of the fluid in the liquid outlet pipe to flow back into the interior of the container. Through this embodiment, the fluid in the liquid outlet pipe can flow back into the container, the fluid is kept in a flowing state, and the refluxed fluid can impact the fluid in the container, thereby preventing the fluid in the container from settling.
[0007] In one embodiment, the normally closed valve and the normally open valve are both electromagnetic valves. Through this embodiment, it is convenient to realize the state change of the normally closed valve and the normally open valve through the circuit, and realize automatic control of liquid discharge and the like.
[0008] In one embodiment, a power-on delay relay is provided on the power supply line of the normally closed valve and the normally open valve, and the time interval for switching the state of the normally closed valve and the normally open valve can be adjusted by the power-on delay relay. A power-off delay relay is provided on the power supply line of the power-on delay relay and the circulation pump, and the working time of the circulation pump can be controlled by the power-off delay relay. Through this embodiment, the circulation pump can be controlled to work at a certain time interval through the relay, and the state switching time of the normally closed valve and the normally open valve can be maintained, and the discharge time can be controlled according to the amount of fluid in the container, or the fluid can be discharged at a certain interval, so as to realize unattended automatic injection of medicine into brine and reduce the intensity of manual labor.
[0009] In one embodiment, a through hole is formed through the valve core of the normally open valve, and when the normally open valve is in a closed state, the fluid in the return pipe passes through the through hole and over the normally open valve. According to this embodiment, the flow rate in the return pipe when the normally open valve is in an open state is greater than when the normally open valve is in a closed state.
[0010] In one embodiment, the through hole is a cross through hole.
[0011] In one embodiment, a pressure regulating valve is provided on the liquid outlet pipe, and the pressure regulating valve is used to provide back pressure for the normally open valve when the normally closed valve is in an open state, so that part of the fluid in the liquid outlet pipe can pass through the normally open valve.
[0012] In one embodiment, the end of the liquid outlet pipe connected to the container is located at the bottom of the container, and the end of the reflux pipe connected to the container is located at the top of the container. Through this embodiment, the refluxed fluid has a certain mechanical energy, which can impact the fluid inside the container and play a stirring role.
[0013] In one embodiment, a bypass pipe is connected to the liquid outlet pipe, two ends of the bypass pipe are located on both sides of the normally closed valve, and the bypass pipe is equipped with a pressure relief bypass valve. Through this embodiment, it is ensured that when the normally closed valve is in a fault state, the fluid in the liquid outlet pipe can also be discharged.
[0014] In one embodiment, the inner diameter of the reflux pipe is smaller than the inner diameter of the liquid outlet pipe. Through this embodiment, it is ensured that when the normally closed valve is in an open state, most of the fluid is discharged through the liquid outlet pipe, and a small part of the liquid flows back through the reflux pipe.
[0015] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the utility model can be achieved.
[0016] Compared with the prior art, the self-circulating device for mixing medicaments provided by the utility model has at least the following beneficial effects:
[0017] When the normally closed valve is in a closed state, the fluid in the liquid outlet pipe flows back into the container through the reflux pipe to realize self-circulation. When the normally closed valve is in an open state, most of the fluid in the liquid outlet pipe is discharged through the outlet end of the liquid outlet pipe, and a small part of the fluid flows back into the container through the reflux pipe, thereby realizing that the fluid always flows back into the container, avoiding the situation where the fluid in the container is allowed to settle while mixing the medicine and water. The refluxed fluid can stir the fluid in the container, further improving the mixing effect of the medicine and water. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.
[0019] Figure 1 It is a structural schematic diagram of the utility model;
[0020] Figure 2 It is a logical wiring diagram of relays and valves.
[0021] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.
[0022] Reference numerals:
[0023] 10. Container; 20. Liquid outlet pipe; 21. Circulation pump; 22. Normally closed valve; 23. Pressure regulating valve; 30. Return pipe; 31. Normally open valve; 40. Bypass pipe; 41. Pressure relief bypass valve; 50. Power-on delay relay; 60. Power-off delay relay. DETAILED DESCRIPTION
[0024] The utility model will be further described below in conjunction with the accompanying drawings.
[0025] like Figure 1 As shown, the utility model provides a self-circulating device for mixing medicines, including a container 10 for mixing medicines, the container 10 is connected to a liquid outlet pipe 20, and the liquid outlet pipe 20 is sequentially provided with a circulation pump 21 and a normally closed valve 22 along the direction of movement of the internal fluid thereof, the liquid outlet pipe 20 is located between the circulation pump 21 and the normally closed valve 22 and is connected to a reflux pipe 30, the reflux pipe 30 is communicated with the container 10, and the reflux pipe 30 can make part of the fluid inside the liquid outlet pipe 20 flow back into the container 10 when the normally closed valve 22 is in an open state.
[0026] Specifically, Figure 1 It is a schematic diagram of the structure from a top view. The container 10 can be a box, a tank or a mixing tank. When the normally closed valve 22 is in a closed state, under the action of the circulating pump 21, the fluid (mixed with medicine and water) in the container 10 is discharged through the liquid outlet pipe 20, and then flows back into the container 10 through the reflux pipe 30. When the normally closed valve 22 is in an open state, under the action of the circulating pump 21, most of the fluid in the liquid outlet pipe 20 is discharged into the well through the liquid outlet pipe 20 to react with the brine, and a small part of the fluid in the liquid outlet pipe 20 flows back into the container 10 through the reflux pipe 30 to stir the medicine in the container 10, keep the fluid in the container 10 in a flowing state, and reduce the situation where the medicine is precipitated due to standing.
[0027] In one embodiment, a normally open valve 31 is provided on the reflux pipe 30, and the normally open valve 31 can adjust the opening degree, so that when the normally closed valve 22 is in a closed state, the reflux pipe 30 returns all the fluid in the liquid outlet pipe 20 to the inside of the container 10, and when the normally closed valve 22 is in an open state, the reflux pipe 30 allows part of the fluid in the liquid outlet pipe 20 to flow back into the container 10. Through this embodiment, the fluid in the liquid outlet pipe 20 can flow back into the container 10, the fluid is kept in a flowing state, and the refluxed fluid can impact the fluid in the container 10, thereby preventing the fluid in the container 10 from settling.
[0028] Specifically, by providing a normally open valve 31 on the reflux pipe 30, when the normally closed valve 22 is in different states, the flow rate of the reflux pipe 30 is adjusted by adjusting the opening of the normally closed valve 22. This avoids the situation where too much fluid refluxes through the reflux pipe 30 when the outlet pipe 20 is required to discharge fluid, resulting in too little fluid being discharged from the outlet pipe 20, affecting the normal discharge of fluid.
[0029] In one embodiment, both the normally closed valve 22 and the normally open valve 31 are electromagnetic valves. Through this embodiment, it is convenient to realize the state change of the normally closed valve 22 and the normally open valve 31 through the circuit, and realize automatic control of liquid discharge and the like.
[0030] Specifically, when the normally closed valve 22 and the normally open valve 31 are powered on, the normally closed valve 22 can be switched between fully closed and fully open states; the normally open valve 31 can be switched between fully open and partially open states.
[0031] In one embodiment, if Figure 2As shown, a power-on delay relay 50 is provided on the power supply line of the normally closed valve 22 and the normally open valve 31, and the time interval of switching the state of the normally closed valve 22 and the normally open valve 31 can be adjusted through the power-on delay relay 50. A power-off delay relay 60 is provided on the power supply line of the power-on delay relay 50 and the circulation pump 21, and the working time of the circulation pump 21 can be controlled through the power-off delay relay 60. Through this embodiment, the circulation pump 21 can be controlled to work at a certain time interval through the relay, and the state switching time of the normally closed valve 22 and the normally open valve 31 can be maintained, and the discharge time can be controlled according to the amount of fluid in the container 10, or the fluid can be discharged at a certain interval, so as to facilitate the unattended automatic injection of medicine into the brine and reduce the labor intensity.
[0032] Specifically, this application includes the following working conditions:
[0033] Working condition 1, before the reagent is mixed with water and injected into the well to react with brine: after power is turned on, the power-off delay relay 60 supplies power to the circulation pump 21 and the power-on delay relay 50. At this time, the normally closed valve 22 is in a closed state, and the normally open valve 31 is in an open state. Under the action of the power-on delay relay 50, the normally closed valve 22 and the normally open valve 31 are not powered and do not move. The circulation pump 21 starts to be powered on, and the fluid inside the container 10 is discharged from the container 10 through the liquid outlet pipe 20, and then flows back into the container 10 through the reflux pipe 30, starting a large flow automatic circulation, and realizing the effect of circulating and mixing the fluid inside the container 10. The refluxed fluid can also stir the fluid inside the container 10, thereby improving the mixing effect of the reagent.
[0034] Working condition 2: normal injection of reagents and small flow self-circulation: the power-on delay relay 50 delays contact (the specific setting time is adjustable, subject to the complete mixing of the reagents), and the normally closed valve 22 and the normally open valve 31 are powered at the same time. At this time, the normally closed valve 22 is powered on and opened, and the normally open valve 31 is powered on and closed (at this time, it is not completely closed, and a small flow of fluid can still pass through). The fluid in the outlet pipe 20 is injected into the road water pool through the normally closed valve 22, and a small part of the fluid flows back to the container 10 through the cross hole on the valve core of the normally open valve 31 to maintain a small flow circulation. While achieving the discharge, the small flow of fluid is maintained to reflux, and the fluid in the upper layer of the container 10 is kept in a moving (stirring) state, further reducing the static sedimentation.
[0035] Working condition 3: The injection of the mixed liquid is finished, or the mixed liquid needs to be injected at intervals: the timing of the power-off delay relay 60 ends (the specific setting time can refer to the time required to inject a certain amount of mixed liquid), and the circulation pump 21, the power-on delay relay 50, the normally closed valve 22 and the normally open valve 31 lose power. The circulation pump 21 stops working, the normally closed valve 22 and the normally open valve 31 are reset, and the entire pipeline returns to the state where the normally closed valve 22 is closed and the normally open valve 31 is open.
[0036] In one embodiment, a through hole is formed through the valve core of the normally open valve 31, and when the normally open valve 31 is in a closed state, the fluid in the return pipe 30 passes through the through hole and over the normally open valve 31. According to this embodiment, the flow rate in the return pipe 30 when the normally open valve 31 is in an open state is greater than when the normally open valve 31 is in a closed state.
[0037] Specifically, when the normally open valve 31 is fully open, the aperture through which the fluid can pass is larger than the aperture when the normally open valve 31 is partially open (i.e., the fluid passes through the through hole at this time). For example, the valve core is a sphere, and a through groove is formed through the sphere, and the through hole passes through the sphere, and the through hole and the through groove are perpendicular to each other, and the inner diameter of the through groove is larger than the inner diameter of the through hole. When the normally open valve 31 is in an open state, the through groove connects the two ends of the normally open valve 31, and the two ends of the through hole form a blocking structure with the inner wall of the normally open valve 31. At this time, the aperture of the normally open valve 31 through which the fluid passes is large; when the normally open valve 31 is in a closed state (partially open), the through hole connects the two ends of the normally open valve 31, and the two ends of the through groove form a blocking structure with the inner wall of the normally open valve 31. At this time, the aperture of the normally open valve 31 through which the fluid passes is small.
[0038] In one embodiment, the through hole is a cross through hole.
[0039] In one embodiment, a pressure regulating valve 23 is provided on the liquid outlet pipe 20 , and the pressure regulating valve 23 is used to provide back pressure for the normally open valve 31 when the normally closed valve 22 is in an open state, so that part of the fluid in the liquid outlet pipe 20 can pass through the normally open valve 31 .
[0040] In one embodiment, one end of the liquid outlet pipe 20 connected to the container 10 is located at the bottom of the container 10, and one end of the return pipe 30 connected to the container 10 is located at the top of the container 10. Through this embodiment, the refluxed fluid has a certain mechanical energy, which can impact the fluid inside the container 10 and play a stirring role.
[0041] In one embodiment, a bypass pipe 40 is connected to the liquid outlet pipe 20, and both ends of the bypass pipe 40 are located on both sides of the normally closed valve 22. The bypass pipe 40 is equipped with a pressure relief bypass valve 41. Through this embodiment, it is ensured that when the normally closed valve 22 is in a fault state, the fluid in the liquid outlet pipe 20 can also be discharged.
[0042] Specifically, the pressure relief bypass valve 41 is used to avoid the pressure build-up of the circulation pump 21, so that the circulation pump 21 can work normally, and the normally closed valve 22 can be easily inspected and repaired online without affecting the normal discharge of liquid.
[0043] In one embodiment, the inner diameter of the reflux pipe 30 is smaller than the inner diameter of the liquid outlet pipe 20. This embodiment ensures that when the normally closed valve 22 is in an open state, most of the fluid is discharged through the liquid outlet pipe 20, and a small part of the liquid flows back through the reflux pipe 30.
[0044] Specifically, by limiting the diameter of the reflux pipe 30 , it is ensured that when the normally closed valve 22 is in an open state, most of the flow is discharged normally, and a small part of the solid flows back into the container 10 through the reflux pipe 30 .
[0045] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0046] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A self-circulating device for mixing medicines, characterized in that: The invention comprises a container for mixing medicines, wherein the container is connected to a liquid outlet pipe, wherein a circulation pump and a normally closed valve are sequentially arranged on the liquid outlet pipe along the direction of movement of the internal fluid, wherein a reflux pipe is connected to the position of the liquid outlet pipe between the circulation pump and the normally closed valve, wherein the reflux pipe is communicated with the container, and wherein the reflux pipe can cause part of the fluid inside the liquid outlet pipe to flow back into the container when the normally closed valve is in an open state.
2. The self-circulating device for mixing medicaments according to claim 1, characterized in that: The reflux pipe is provided with a normally open valve, and the normally open valve can adjust the opening degree so that when the normally closed valve is in a closed state, the reflux pipe allows all the fluid in the liquid outlet pipe to return to the interior of the container, and when the normally closed valve is in an open state, the reflux pipe allows part of the fluid in the liquid outlet pipe to flow back into the container.
3. The self-circulating device for mixing medicines according to claim 2, characterized in that: The normally closed valve and the normally open valve are both solenoid valves.
4. The self-circulating device for mixing medicines according to claim 2, characterized in that: A power-on delay relay is provided on the power supply lines of the normally closed valve and the normally open valve, and a power-off delay relay is provided on the power supply lines of the power-on delay relay and the circulating pump.
5. The self-circulating device for mixing medicines according to claim 2, characterized in that: A through hole is formed through the valve core of the normally open valve. When the normally open valve is in a closed state, the fluid in the return pipe passes through the normally open valve through the through hole.
6. The self-circulating device for mixing medicines according to claim 5, characterized in that: The through hole is a cross through hole.
7. The self-circulating device for mixing medicines according to claim 2, characterized in that: The liquid outlet pipe is provided with a pressure regulating valve, and the pressure regulating valve is used to provide back pressure for the normally open valve when the normally closed valve is in an open state, so that part of the fluid in the liquid outlet pipe can pass through the normally open valve.
8. The self-circulating device for mixing medicaments according to any one of claims 1 to 7, characterized in that: One end of the liquid outlet pipe communicating with the container is located at the bottom of the container, and one end of the reflux pipe communicating with the container is located at the top of the container.
9. The self-circulating device for mixing medicaments according to any one of claims 1 to 7, characterized in that: The liquid outlet pipe is connected with a bypass pipe, two ends of the bypass pipe are located on both sides of the normally closed valve, and the bypass pipe is equipped with a pressure relief bypass valve.
10. The self-circulating device for mixing medicaments according to any one of claims 1 to 7, characterized in that: The inner diameter of the reflux pipe is smaller than the inner diameter of the liquid outlet pipe.