CN211732539U - Fluid transfer transition device - Google Patents
Fluid transfer transition device Download PDFInfo
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- CN211732539U CN211732539U CN201922081814.3U CN201922081814U CN211732539U CN 211732539 U CN211732539 U CN 211732539U CN 201922081814 U CN201922081814 U CN 201922081814U CN 211732539 U CN211732539 U CN 211732539U
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Abstract
The utility model provides a fluid transmission transition device belongs to and carries technical field, including a jar body, feed liquor pipe and drain pipe. Wherein, the tank body is arranged between the centrifuge and the waste liquid tank. The tank body is connected with a liquid inlet pipe, the liquid inlet pipe is arranged on the side wall of the tank body, and the extending end is connected with an outlet of the centrifugal machine and used for communicating the centrifugal machine with the tank body. The tank body is also connected with a liquid outlet pipe, the liquid outlet pipe is arranged on the side wall of the tank body, and the extending end of the liquid outlet pipe is connected with a pipeline connected with an inlet of the waste liquid tank and used for communicating the waste liquid tank with the tank body. The pressure regulating assembly is used for pressurizing the tank body or balancing the diameter of the pressure liquid inlet pipe in the tank body, which is larger than the diameter of the liquid outlet pipe, and the liquid outlet pipe is positioned below the liquid inlet pipe. The utility model provides a fluid transmission transition device sets up between centrifuge and waste liquid jar, can provide the space of keeping in for the butanol waste liquid fluid that flows back along the pipeline, can prevent that butanol waste liquid fluid from flowing back and polluting the former powder of penicillin V potassium in flowing into centrifuge.
Description
Technical Field
The utility model belongs to the technical field of carry, more specifically say, relate to a fluid transmission transition device.
Background
In the process of preparing penicillin V potassium, a process is provided, a centrifugal machine is needed to carry out centrifugal treatment on crystallization mother liquor, and butanol obtained after centrifugation needs to flow into a waste liquid tank through a transmission pipeline.
Among the prior art, because of centrifuge's outlet pipe diameter is greater than the pipe diameter of waste liquid jar entry, and centrifuge is far away from the distance of waste liquid jar, so in order to practice thrift the cost, carry out necking down processing to the pipeline in centrifuge's exit, the diameter of pipeline equals the diameter of waste liquid jar entry promptly, and the pipeline adopts the taper connecting pipe to be connected with centrifuge outlet. In the use, along with the continuous transmission of fluid along the pipeline, lead to the pressure increase in the waste liquid jar, when the pressure in the waste liquid jar is greater than the pressure of centrifuge exit, the fluid can take place to flow backward the phenomenon, leads to the original powder of penicillin V potassium in the centrifuge to be polluted. Moreover, when the fluid suddenly enters the pipeline with small diameter from the pipeline with large diameter, the corrosion rate of the fluid to the inner wall of the pipeline is correspondingly accelerated due to the increase of the flow speed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fluid transfer transition device aims at solving the current technical problem who pollutes the former powder of penicillin V potassium among the centrifuge because of the pressure differential effect takes place to flow backward at the preparation of penicillin V potassium.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a fluid transfer transition device comprising:
the tank body is provided with a liquid inlet and a liquid outlet, is arranged between the centrifugal machine and the waste liquid tank and is used for temporarily storing the butanol fluid poured backwards;
the liquid inlet pipe is used for communicating an outlet of the centrifugal machine with the liquid inlet of the tank body, and an opening and closing valve is arranged on the liquid inlet pipe;
the liquid outlet pipe is used for communicating an inlet of the waste liquid tank with the liquid outlet of the tank body; and
the pressure regulating assembly is arranged on the side wall of the tank body and is used for pressurizing the interior of the tank body or balancing the pressure intensity of the interior of the tank body;
wherein, the pipe diameter of feed liquor pipe is greater than the pipe diameter of drain pipe, the drain pipe is located the below of feed liquor pipe, the external portion of jar is equipped with the evacuation pipeline, the pressure regulating subassembly with the evacuation pipeline is linked together.
As another embodiment of the present application, at least one baffle plate for changing the flow direction of the fluid in the tank body is disposed inside the tank body, the liquid inlet of the tank body and the liquid outlet of the tank body are respectively located at two sides of the baffle plate, and the baffle plate is connected to the inner wall of the tank body.
As another embodiment of the present application, the baffle plate divides the inner cavity of the tank into a first sub-cavity and a second sub-cavity;
wherein, the inlet is located the top of first sub chamber, the one end of feed liquor pipe is passed the inlet and is stretched into the position that is close to the bottom in the first sub chamber, the liquid outlet is located the bottom of the jar body, the one end of drain pipe with the liquid outlet links to each other.
As another embodiment of the application, the baffle plate is in a single arch shape, and the notch of the baffle plate is arranged upwards.
As another embodiment of the present application, the voltage regulating assembly includes:
the breather pipe is arranged on the side wall of the tank body and communicated with the inside of the tank body;
the regulating valve is arranged at the end part of the vent pipe and used for changing the flow direction of the air flow between the inside of the tank body and the outside; and
and the booster pump is respectively connected with the regulating valve and the emptying pipeline and used for pressurizing the inside of the tank body.
As another embodiment of the present application, the regulating valve includes:
the two ends of the fixed valve body are respectively connected with the vent pipe and the booster pump, and the two ends of the fixed valve body are respectively provided with butting columns which are oppositely arranged along the axial direction of the fixed valve body;
the rotary valve body is positioned in the fixed valve body, is in threaded connection with the fixed valve body and is used for rotating and performing translational motion in the fixed valve body;
the two valve cores are arranged inside the rotary valve body and are respectively positioned at two ends of the rotary valve body; and
the spring is positioned between the two valve cores and used for elastically rebounding the two valve cores;
the rotary valve comprises a rotary valve body, a valve core, a handle, a fixed valve body and a valve core, wherein the two ends of the rotary valve body are respectively provided with a butt joint hole for butting against the valve core, the outer side wall of the rotary valve body is provided with the handle, and the side wall of the fixed valve body is provided with an open hole for facilitating the rotation of the handle.
As another embodiment of the application, the tank body is further provided with an observation sight glass for observing the fluid state in the tank body.
As another embodiment of the present application, the fluid transfer transition device further includes a pressure detector disposed on the sidewall of the tank body, and one end of the pressure detector extends into the tank body for detecting the pressure in the tank body.
The utility model provides a fluid transmission transition device's beneficial effect lies in: compared with the prior art, the utility model discloses fluid transmission transition device is equipped with a jar body, possesses certain volume because of a jar body, can provide a space of keeping in for the butanol waste liquid fluid that flows back in the pipeline that the garbage bin entry communicates to prevent that butanol waste liquid fluid from flowing back to the former powder of penicillin V potassium pollutes in the centrifuge. And the diameter of feed liquor pipe is greater than the diameter of drain pipe, and the pipe diameter of feed liquor pipe is the same with centrifuge's export diameter promptly, and the diameter of drain pipe is the same with the diameter of waste liquid jar entry, and this kind of structure is when guaranteeing the cost of solution, can also prevent the problem that the butanol waste liquid fluid that leads to because of the pipe diameter shrink accelerates to pipeline inner wall corrosion rate. The drain pipe is located the top of feed liquor pipe, and further assurance is poured back butanol waste liquid fluid and can be stayed jar body to prevent that butanol waste liquid fluid from flowing back to pollute the former powder of penicillin V potassium in centrifuge. In addition, still be equipped with the pressure regulating subassembly, can carry out the pressure regulating work to jar internal portion, when the internal butanol fluid of jar is detained for a long time, can carry out the pressure boost to guarantee that butanol fluid flows into waste liquid jar, when jar internal portion pressure is too big, can carry out the pressure release. Be equipped with the ooff valve on the feed liquor pipe, close during the pressure boost, can guarantee not make the butanol fluid flow in centrifuge during the pressure boost. The utility model discloses fluid transmission transition device sets up between centrifuge and waste liquid jar, can provide the space of keeping in for the butanol waste liquid fluid that flows back along the pipeline, can prevent that butanol waste liquid fluid from flowing back and polluting the former powder of penicillin V potassium in flowing into centrifuge.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a first schematic structural diagram of a fluid transfer transition device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a sectional structure (hiding the pressure regulating assembly and the booster pump) of the fluid transfer transition device according to an embodiment of the present invention;
fig. 3 is a front view of a fluid transfer transition device (hidden pressure regulating assembly) according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the fluid transfer transition device shown in FIG. 3;
fig. 5 is a schematic structural view of a pressure regulating assembly of a fluid transmission transition device according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional structural view of a pressure regulating assembly of a fluid transmission transition device according to an embodiment of the present invention;
in the figure: 10. a tank body; 11. a first sub-cavity; 12. a second subchamber; 20. a liquid inlet pipe; 21. opening and closing the valve; 30. a liquid outlet pipe; 40. a voltage regulating component; 41. a breather pipe; 42. adjusting a valve; 421. fixing the valve body; 422. rotating the valve body; 423. a valve core; 424. a spring; 425. a butting post; 426. a handle; 43. a booster pump; 50. a pressure detector; 60. an observation sight glass; 70. and (7) a baffle plate.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 6, a fluid transfer transition device according to the present invention will now be described. The fluid transmission transition device comprises a tank body 10, a liquid inlet pipe 20, a liquid outlet pipe 30 and a pressure regulating assembly 40. Wherein, the tank body 10 is arranged between the centrifuge and the waste liquid tank. A liquid inlet and a liquid outlet are arranged on the tank body 10, the liquid inlet is connected with a liquid inlet pipe 20, and one end of the liquid inlet pipe 20 is communicated with an outlet of the centrifugal machine and used for communicating the centrifugal machine with the tank body 10. The liquid outlet is connected with a liquid outlet pipe 30, and the extending end of the liquid outlet pipe 30 is connected with a pipeline connected with the inlet of the waste liquid tank and is used for communicating the waste liquid tank with the tank body 10. The diameter of liquid inlet pipe 20 is greater than the diameter of liquid outlet pipe 30, and liquid outlet pipe 30 is located below liquid inlet pipe 20. The pressure regulating assembly 40 is arranged on the side wall of the tank body 10 and used for pressurizing the interior of the tank body 10 or balancing the pressure intensity of the interior of the tank body 10, an emptying pipeline is arranged outside the tank body 10, the pressure regulating assembly 40 is communicated with the emptying pipeline, and the opening and closing valve on the liquid inlet pipe 20 can be closed during pressurization work.
The utility model provides a fluid transmission transition device, the theory of operation is: due to the action of pressure difference, the butanol waste liquid in the pipeline flows back to flow backwards, and the returned liquid completely enters the tank body 10. After the pressure difference is stabilized, the butanol waste liquid flows into the pipeline through the liquid outlet pipe 30 and then flows into the waste liquid tank. If the pressure difference exists all the time, the fluid is retained in the tank body 10, and the pressure regulating assembly pressurizes the inside of the tank body 10, so that the fluid is conveyed into the waste liquid tank through the pressure.
It should be noted that the volume of the tank body 10 is determined according to the actual backflow amount of the butanol waste liquid fluid, so as to ensure that the tank body 10 can completely store the backflow butanol waste liquid fluid; in addition, the tank 10 can also store most of the fluid transferred from the centrifuge to reduce the flow rate of the fluid in the pipe.
The utility model provides a fluid transmission transition device compares with prior art, the utility model discloses fluid transmission transition device is equipped with jar body 10, possesses certain volume because of jar body 10, can provide a space of keeping in for the butanol waste liquid fluid that flows back in the pipeline that the garbage bin entry communicates to prevent that butanol waste liquid fluid from flowing back to the former powder of penicillin V potassium pollutes in the centrifuge. And the diameter of feed liquor pipe 20 is greater than the diameter of drain pipe 30, and the pipe diameter of feed liquor pipe 20 is the same with centrifuge's export diameter promptly, and the diameter of drain pipe 30 is the same with the diameter of waste liquid jar entry, and this kind of structure is when guaranteeing the cost of solution, can also prevent the problem that butanol waste liquid fluid that leads to because of the pipe diameter shrink accelerates to pipeline inner wall corrosion rate. The drain pipe 30 is located the top of feed liquor pipe 20, and further assurance is poured back butanol waste liquid fluid and can be stopped in jar body 10 to prevent that butanol waste liquid fluid from flowing back to polluting the former powder of penicillin V potassium in the centrifuge. In addition, still be equipped with pressure regulating subassembly 40, can carry out the pressure regulating work to jar internal portion of body 10, when the butanol fluid in jar internal portion 10 is detained for a long time, can carry out the pressure boost to guarantee that the butanol fluid flows into the waste liquid jar, when jar internal portion pressure is too big, can carry out the pressure release. Be equipped with switching valve 21 on feed liquor pipe 20, close during the pressure boost, can guarantee not make the butanol fluid flow in the centrifuge during the pressure boost. The utility model discloses fluid transmission transition device sets up between centrifuge and waste liquid jar, can provide the space of keeping in for the butanol waste liquid fluid that flows back along the pipeline, can prevent that butanol waste liquid fluid from flowing back and polluting the former powder of penicillin V potassium in flowing into centrifuge.
As a specific embodiment of the fluid transfer transition device provided in the present invention, please refer to fig. 1 to 6 together, the tank 10 is composed of a cylinder and end sockets respectively disposed at two ends, the tank 10 is horizontally disposed, that is, the tank 10 is horizontally disposed, which is easy to build, manage and maintain. At least one baffle plate 70 is arranged in the tank body 10, the liquid inlet of the tank body 10 and the liquid outlet of the tank body 10 are respectively positioned at two sides of the baffle plate 70, and the baffle plate 70 is connected with the inner wall of the tank body 10. The baffle plate 70 can change the flowing direction of the fluid in the tank body 10, so that the butanol waste liquid fluid can be discharged into the pipeline through the liquid outlet pipe 30 after being buffered in the tank body 10 to a certain extent, thereby reducing the flowing speed of the fluid in the pipeline and the corrosion rate of the inner wall of the pipeline.
As a specific implementation manner of the fluid transmission transition device provided in the embodiment of the present invention, please refer to fig. 1 to 6, the baffle plate 70 divides the inner cavity of the tank 10 into the first sub-cavity 11 and the second sub-cavity 12. Wherein, the inlet is located first subchamber 11 directly over, and the other end of feed liquor pipe 20 stretches into in first subchamber 11 and is close to the bottom of first subchamber 11, and after butanol waste liquid fluid flowed into jar body 10, earlier storage was in first subchamber 11 to the structure of feed liquor pipe 20, spills over to second subchamber 12 again after butanol waste liquid fluid liquid level in first subchamber 11 surpassed baffling board 70's breach position. The liquid outlet is linked together with second subchamber 12, and drain pipe 30 is located the bottom of second subchamber 12, and the liquid that spills over by first subchamber 11 is direct to be discharged to the pipeline by drain pipe 30 in. The structure can also carry out liquid seal on the liquid outlet pipe 30, so that gas in the waste liquid tank is blocked to the tank body 10, and the environment in the centrifuge is kept from being polluted.
As a specific implementation manner of the fluid transmission transition device provided by the embodiment of the present invention, please refer to fig. 1 to 6 together, the baffle plate 70 is single-arch-shaped, the single-arch-shaped baffle plate 70 has the characteristics of simple structure and convenient manufacturing, the notch of the baffle plate 70 is placed upwards in the tank body 10, so as to ensure that the butanol waste liquid fluid flows into the tank body and is buffered stably at one side of the baffle plate 70, and then overflows to the drain pipe 30 from the notch of the baffle plate 70.
Referring to fig. 1 to 6 together, a pressure regulating assembly 40 includes a vent pipe 41, a regulating valve 42 and a booster pump 43. Wherein, the vent pipe 41 is disposed on the sidewall of the tank 10 and is communicated with the inside of the tank 10. The adjusting valve 42 is disposed at an end of the vent pipe 41 for changing the flowing direction of the air flow inside the can body 10 from the outside. The pressurizing pump 43 is connected to the regulating valve 42 and the evacuation pipe, respectively, for pressurizing the inside of the tank 10. The pressure regulating assembly 40 is arranged, so that the pressure inside the tank body 10 can be regulated skillfully, the fluid is further guaranteed not to be detained, the fluid is also guaranteed not to be detained in a transmission pipeline, and the probability of backflow can be avoided.
As a specific implementation manner of the fluid transfer transition device provided in the embodiment of the present invention, please refer to fig. 1 to fig. 6, the adjusting valve 42 includes a fixed valve 421, a rotary valve 422, a valve plug 423, and a spring 424. The two ends of the fixed valve 421 are respectively connected to the breather pipe 41 and the booster pump 43, the two ends of the fixed valve 421 are respectively provided with a butting column 425 axially arranged along the fixed valve 421, and the ends of the two butting columns 425 are oppositely arranged. The rotary valve body 422 is located inside the fixed valve body 421, and the rotary valve body 422 is in threaded connection with the fixed valve body 421 and is used for rotating and making translational motion inside the fixed valve body 421. The spool 423 is provided inside the rotary valve body 422, and two spools 423 are provided and located at both ends of the rotary valve body 422, respectively. A spring 424 is located between the two spools 423 for elastically rebounding the two spools 423. The both ends of rotary valve body 422 all are equipped with the butt hole that is used for butt case 423, are equipped with handle 426 on the rotary valve body 422 lateral wall, and the lateral wall of fixed valve body 421 is equipped with the uncovered mouth that is used for being convenient for handle 426 pivoted. Simple structure, convenient operation, and the practicality is strong, can be fine adjust the pressure of jar internal portion 10 to further prevent flowing backward, the problem of being detained.
In this embodiment, the rotary valve body 422 is connected to the fixed valve body 421 by a screw thread, and the rotary valve body 422 rotates to make the rotary valve body 422 perform reciprocating translation in the fixed valve body 421 along the axial direction, that is, the valve plugs 423 at both ends of the rotary valve body are abutted to the abutment posts 425 at both ends of the fixed valve body 421, thereby realizing the flow of the unidirectional air flow. When the pressure is increased, the handle 426 is pulled to one side, the rotary valve body 422 is translated to one side of the tank 10, the valve core 423 on the side is abutted with the abutting column 425, namely, one end of the rotary valve body 422 close to the tank 10 forms a passage, the booster pump 43 boosts the interior of the tank 10, and the air flow can not enter. When the pressure is released, i.e. after the fluid has completely flowed into the waste liquid tank, the pressure inside the tank 10 changes abruptly. At this time, the handle 426 is pulled back, the rotary valve body 422 moves toward the booster pump 43, and the valve body 423 on the side close to this side is brought into contact with the abutment post 425 on the side close to the booster pump 43, and this forms a passage, and the air flow flows out to the evacuation line. A spring 424 in the interior of the rotary valve body 422 will always spring one spool 423 or both spools 423 against openings at both ends of the rotary valve body 422, causing the spools 423 to seal the openings.
As a specific implementation manner of the fluid transmission transition device provided by the embodiment of the present invention, please refer to fig. 1 to fig. 6 together, the tank body 10 is further provided with an observation mirror 60, the observation mirror 60 is disposed on the sidewall of the tank body 10, so that the staff can observe the fluid state inside the tank body 10 conveniently.
In this embodiment, a plurality of observation mirrors 60 may be disposed at different positions on the sidewall of the tank 10, respectively, so as to ensure that the staff can observe the fluid states at different positions.
As an embodiment of the present invention, please refer to fig. 1 to fig. 6 together, the pressure detector 50 is disposed on the sidewall of the tank 10, and one end of the pressure detector extends into the tank 10 for detecting the pressure inside the tank 10, so that the worker can check the pressure inside the tank 10 at any time or check the sudden change of the pressure.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A fluid transfer transition device, comprising:
the tank body is provided with a liquid inlet and a liquid outlet, is arranged between the centrifugal machine and the waste liquid tank and is used for temporarily storing the butanol fluid poured backwards;
the liquid inlet pipe is used for communicating an outlet of the centrifugal machine with the liquid inlet of the tank body, and an opening and closing valve is arranged on the liquid inlet pipe;
the liquid outlet pipe is used for communicating an inlet of the waste liquid tank with the liquid outlet of the tank body; and
the pressure regulating assembly is arranged on the side wall of the tank body and is used for pressurizing the interior of the tank body or balancing the pressure intensity of the interior of the tank body;
wherein, the pipe diameter of feed liquor pipe is greater than the pipe diameter of drain pipe, the drain pipe is located the below of feed liquor pipe, the external portion of jar is equipped with the evacuation pipeline, the pressure regulating subassembly with the evacuation pipeline is linked together.
2. The fluid transfer transition device of claim 1, wherein at least one baffle plate for changing the flow direction of the fluid in the tank body is arranged in the tank body, the liquid inlet of the tank body and the liquid outlet of the tank body are respectively positioned at two sides of the baffle plate, and the baffle plate is connected with the inner wall of the tank body.
3. The fluid transfer transition device of claim 2, wherein the baffle divides the interior chamber of the tank into a first subchamber and a second subchamber;
wherein, the inlet is located the top of first sub chamber, the one end of feed liquor pipe is passed the inlet and is stretched into the position that is close to the bottom in the first sub chamber, the liquid outlet is located the bottom of the jar body, the one end of drain pipe with the liquid outlet links to each other.
4. The fluid transfer transition device of claim 3, wherein the baffle is single arcuate in shape, and the baffle gap is disposed upwardly.
5. The fluid transfer transition device of claim 1, wherein the pressure regulating assembly comprises:
the breather pipe is arranged on the side wall of the tank body and communicated with the inside of the tank body;
the regulating valve is arranged at the end part of the vent pipe and used for changing the flow direction of the air flow between the inside of the tank body and the outside; and
and the booster pump is respectively connected with the regulating valve and the emptying pipeline and used for pressurizing the inside of the tank body.
6. The fluid transfer transition device of claim 5, wherein the regulator valve comprises:
the two ends of the fixed valve body are respectively connected with the vent pipe and the booster pump, and the two ends of the fixed valve body are respectively provided with butting columns which are oppositely arranged along the axial direction of the fixed valve body;
the rotary valve body is positioned in the fixed valve body, is in threaded connection with the fixed valve body and is used for rotating and performing translational motion in the fixed valve body;
the two valve cores are arranged inside the rotary valve body and are respectively positioned at two ends of the rotary valve body; and
the spring is positioned between the two valve cores and used for elastically rebounding the two valve cores;
the rotary valve comprises a rotary valve body, a valve core, a handle, a fixed valve body and a valve core, wherein the two ends of the rotary valve body are respectively provided with a butt joint hole for butting against the valve core, the outer side wall of the rotary valve body is provided with the handle, and the side wall of the fixed valve body is provided with an open hole for facilitating the rotation of the handle.
7. The fluid transfer transition device of any one of claims 1-6, wherein the tank is further provided with an observation mirror for observing the fluid state inside the tank.
8. The fluid transfer transition device of any one of claims 1-6, further comprising a pressure detector disposed on a sidewall of the tank and having an end extending into the tank for detecting a pressure within the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081814.3U CN211732539U (en) | 2019-11-27 | 2019-11-27 | Fluid transfer transition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081814.3U CN211732539U (en) | 2019-11-27 | 2019-11-27 | Fluid transfer transition device |
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| Publication Number | Publication Date |
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| CN211732539U true CN211732539U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922081814.3U Active CN211732539U (en) | 2019-11-27 | 2019-11-27 | Fluid transfer transition device |
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| CN (1) | CN211732539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856198A (en) * | 2021-01-05 | 2021-05-28 | 扎赉诺尔煤业有限责任公司 | Automatic time-delay start-stop system for lubricating oil pump |
-
2019
- 2019-11-27 CN CN201922081814.3U patent/CN211732539U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856198A (en) * | 2021-01-05 | 2021-05-28 | 扎赉诺尔煤业有限责任公司 | Automatic time-delay start-stop system for lubricating oil pump |
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