CN209976921U - Water jet vacuum pump system - Google Patents
Water jet vacuum pump system Download PDFInfo
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- CN209976921U CN209976921U CN201920626341.8U CN201920626341U CN209976921U CN 209976921 U CN209976921 U CN 209976921U CN 201920626341 U CN201920626341 U CN 201920626341U CN 209976921 U CN209976921 U CN 209976921U
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Abstract
The utility model provides a water jet vacuum pump system, include: a liquid storage tank; a first circulation line; the water injection vacuum pump unit is arranged on the first circulating pipeline; the water outlet port and the water return port of the second circulating pipeline are communicated with the liquid storage tank; and the cooling and separating device is arranged on the second circulating pipeline and is used for cooling the mixed solution in the liquid storage tank, which enters the cooling and separating device through the second circulating pipeline, and separating different solvent components in the mixed solution in a layering manner. The utility model provides a water injection vacuum pump system's among the prior art needs set up special water-cooling heat sink, and cause its structure complicated, lead to unnecessary water waste, have the poor problem of economic nature to and current water injection vacuum pump system function singleness, can not carry out the flash separation to different solvent components in its inside mixed solution effectively, thereby have the problem of certain use limitation.
Description
Technical Field
The utility model relates to a water injection vacuum pump technical field particularly, relates to a water injection vacuum pump system's configuration optimization improves.
Background
The water jet vacuum pump system is widely used in the fields of pesticides, fine chemical industry, medicine, chlor-alkali chemical industry and the like as a mechanical system for recovering a solvent, and can play an important role in the processes of reduced pressure concentration, reduced pressure rectification, vacuum drying and the like.
After the water jet vacuum pump system works for a long time, the working temperature in the system can be continuously increased, and in order to ensure that the water jet vacuum pump system can reliably adsorb and recover the solvent under a stable vacuum degree, the working temperature of the water jet vacuum pump system needs to be strictly limited and cannot be too high. In the prior art, in order to reduce the working temperature of the water jet vacuum pump system, a special water cooling reduction device is usually required to be arranged, so that the structural complexity of the water jet vacuum pump system is increased, unnecessary water resource waste is caused, and the economical efficiency of the water jet vacuum pump system is poor; moreover, the existing water jet vacuum pump system has single function and cannot effectively and rapidly separate different solvent components in the mixed solution in the existing water jet vacuum pump system, so that certain use limitation exists.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a water injection vacuum pump system to the needs of solving the water injection vacuum pump system among the prior art set up special water-cooling heat sink, and cause its structure complicated, lead to unnecessary water waste, have the poor problem of economic nature, and current water injection vacuum pump system function singleness, can not carry out the flash separation to different solvent components in its inside mixed solution effectively, thereby have the problem of certain use limitation.
In order to achieve the above object, the present invention provides a water jet vacuum pump system, comprising: the liquid storage tank is used for storing the mixed solution; the water outlet port and the water return port of the first circulating pipeline are communicated with the liquid storage tank; the water injection vacuum pump unit is arranged on the first circulating pipeline so as to circularly inject the mixed solution in the liquid storage tank, and is also used for sucking and injecting the external gas containing the solvent into the liquid storage tank so as to mix the solvent into the mixed solution in the liquid storage tank; the water outlet port and the water return port of the second circulating pipeline are communicated with the liquid storage tank; and the cooling and separating device is arranged on the second circulating pipeline and is used for cooling the mixed solution in the liquid storage tank, which enters the cooling and separating device through the second circulating pipeline, and separating different solvent components in the mixed solution in a layering manner.
Further, cooling separator includes knockout drum and cooling coil, and the knockout drum has and holds the chamber, and cooling coil sets up and is holding the intracavity, and wherein, hold chamber and second circulation pipeline intercommunication, cooling coil are used for letting in the coolant liquid to holding the mixed solution cooling of intracavity.
Further, the second circulation line includes: a first end of the liquid outlet pipeline is communicated with the liquid storage tank, and a second end of the liquid outlet pipeline extends into the accommodating cavity through the top end of the separation tank; the first end of the liquid return pipeline is communicated with the separating tank, and the second end of the liquid return pipeline is communicated with the liquid storage tank.
Further, the first end of liquid return pipeline and the communicating point of knockout drum are located the below of knockout drum, and second circulation pipeline still includes liquid return branch road, and the first end and the knockout drum intercommunication of liquid return branch road, and be located the top of knockout drum with the communicating point of knockout drum, the second end and the liquid return pipeline intercommunication of liquid return branch road.
Further, a solvent discharge port is formed in the bottom end of the separation tank, a solvent discharge pipeline is arranged at the solvent discharge port, and at least one switch valve is arranged on each of the solvent discharge pipeline, the liquid outlet pipeline, the liquid return pipeline and the liquid return branch pipeline.
Further, the first end of liquid outlet pipe and the intercommunication point of liquid reserve tank are located the middle part of liquid reserve tank, and the second end of liquid outlet pipe stretches into the middle part that holds the chamber.
Further, be provided with first circulating pump on the drain pipe, first circulating pump is used for getting into the knockout drum with the mixed solution pump sending in the liquid reserve tank, and liquid return pipeline is higher than the liquid reserve tank to make partial mixed solution in the knockout drum flow into the liquid reserve tank by oneself.
Further, the cooling liquid inlet of the cooling coil is positioned at the bottom end of the separation tank, and the cooling liquid outlet of the cooling coil is positioned above the separation tank.
Further, the water injection vacuum pump unit comprises a second circulating pump and an injector, the second circulating pump and the injector are sequentially arranged on the first circulating pipeline, the injector is provided with an air suction port, and the injector sucks and injects outside gas containing a solvent into the liquid storage tank in a negative pressure mode through the air suction port.
Furthermore, the liquid storage tank is provided with a liquid storage cavity, a partition plate is arranged in the liquid storage cavity, the partition plate is connected with the top wall surface of the liquid storage cavity and extends downwards to divide the liquid storage cavity into a first cavity and a second cavity which are separated from each other, a baffling port is formed between the partition plate and the bottom wall surface of the liquid storage cavity, the first cavity is communicated with the second cavity through the baffling port, a water outlet port of the first circulating pipeline is communicated with the bottom of the first cavity, and a water return port of the first circulating pipeline is communicated with the top of the first cavity; the water outlet port of the second circulating pipeline is communicated with the middle part of the second cavity, and the water return port of the second circulating pipeline is communicated with the top part of the first cavity.
Use the technical scheme of the utility model, optimize through the structure to water injection vacuum pump system, utilize water injection vacuum pump unit to make the mixed solution in the liquid reserve tank constantly circulate and spray through first circulating line to inhale and spray the entering liquid reserve tank with the external gas that contains the solvent steadily, reach the mixed solution rapid mixing's in solvent and the liquid reserve tank effect. Moreover, the mixed solution in the liquid storage tank continuously and circularly flows through the second circulating pipeline, and the mixed solution is reliably cooled and cooled in the process of passing through the cooling and separating device, so that the cooling water in the mixed solution flows back to the liquid storage tank through the second circulating pipeline, the temperature control effect on the water jet vacuum pump unit is achieved, the phenomenon that the working vacuum degree of the water jet vacuum pump unit is influenced due to overhigh temperature is effectively avoided, and the water jet vacuum pump unit can stably and efficiently work is further ensured; and under the low temperature environment among the cooling separation device, need can be separated by the layering fast effectively by the solvent of retrieving with the cooling water among the mixed solution, very be favorable to the recovery to the solvent to promote the functional diversity of water injection vacuum pump system, and the water injection vacuum pump system simple structure that this application provided, the manufacturing of being convenient for, low cost, the practicality is high.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic flow diagram of a water jet vacuum pump system according to an alternative embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a liquid storage tank; 11. a liquid storage cavity; 111. a first cavity; 112. a second cavity; 20. a first circulation line; 30. a water jet vacuum pump unit; 31. a second circulation pump; 32. an ejector; 321. an air suction port; 40. a second circulation line; 41. a liquid outlet pipeline; 42. a return line; 43. a liquid return branch; 50. a cooling separation device; 51. a separation tank; 511. an accommodating chamber; 512. a solvent discharge port; 52. a cooling coil; 521. a coolant inlet; 522. a coolant outlet; 53. an observation window; 60. a solvent discharge line; 70. opening and closing the valve; 80. a first circulation pump; 90. a partition plate; 91. a baffling port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Set up special water-cooling heat sink in order to solve the needs of the water jet vacuum pump system among the prior art, and cause its structure complicated, lead to unnecessary water waste, have the poor problem of economic nature to and current water jet vacuum pump system function singleness, can not carry out the flash separation to different solvent components in its inside mixed solution effectively, thereby have the problem of certain use limitation, the utility model provides a water jet vacuum pump system.
As shown in fig. 1, the water injection vacuum pump system includes a liquid storage tank 10, a first circulation pipeline 20, a water injection vacuum pump unit 30, a second circulation pipeline 40 and a cooling separation device 50, wherein the liquid storage tank 10 is used for storing a mixed solution, a water outlet port and a water return port of the first circulation pipeline 20 are both communicated with the liquid storage tank 10, the water injection vacuum pump unit 30 is disposed on the first circulation pipeline 20 for circularly injecting the mixed solution in the liquid storage tank 10, the water injection vacuum pump unit 30 is further used for sucking and injecting an external gas containing a solvent into the liquid storage tank 10, so that the solvent is mixed into the mixed solution in the liquid storage tank 10, a water outlet port and a water return port of the second circulation pipeline 40 are both communicated with the liquid storage tank 10, the cooling separation device 50 is disposed on the second circulation pipeline 40, the cooling separation device 50 is used for cooling the mixed solution in the liquid storage tank 10 which enters the cooling separation device 50 through the second circulation pipeline 40, and separating different solvent components in the mixed solution in layers.
Through optimizing the structure of water injection vacuum pump system, utilize water injection vacuum pump unit 30 to make the mixed solution in the liquid reserve tank 10 constantly circulate through first circulation pipeline 20 and spray to inhale and spray the entering liquid reserve tank 10 with the gas that the external world contains the solvent steadily, reach the mixed solution rapid mixing's in solvent and the liquid reserve tank 10 effect. Moreover, the mixed solution in the liquid storage tank 10 continuously and circularly flows through the second circulation pipeline 40, and the mixed solution is reliably cooled and cooled in the process of passing through the cooling and separating device 50, so that the cooling water in the mixed solution flows back to the liquid storage tank 10 through the second circulation pipeline 40, the temperature control effect on the water jet vacuum pump unit 30 is achieved, the phenomenon that the working vacuum degree of the water jet vacuum pump unit 30 is influenced due to overhigh temperature is effectively avoided, and the water jet vacuum pump unit 30 can stably and efficiently work is further ensured; and under the low temperature environment in the cooling separation device 50, need can be effectively by quick layered separation with the cooling water by the solvent of retrieving in the mixed solution, very be favorable to the recovery to the solvent to promote the functional diversity of water injection vacuum pump system, and the water injection vacuum pump system simple structure that this application provided, the manufacturing of being convenient for, low cost, the practicality is high.
It should be noted that, in the present application, one of the main solvents in the mixed solution is water, and the solvent contained in the external gas may be a gaseous organic solvent, and when the organic solvent is sucked and injected into the liquid storage tank 10, the liquid organic solvent is mixed with the water in the mixed solution, that is, the mixed solution may further contain a plurality of organic solvents; this part of the organic solvent and water can be separated in layers in the cooling separation device 50 to be recycled.
As shown in fig. 1, the cooling and separating device 50 includes a separating tank 51 and a cooling coil 52, the separating tank 51 has a containing cavity 511, the cooling coil 52 is disposed in the containing cavity 511, wherein the containing cavity 511 is communicated with the second circulation pipeline 40, and the cooling coil 52 is used for introducing a cooling liquid for cooling the mixed solution in the containing cavity 511. In this way, the mixed solution in the liquid storage tank 10 enters the accommodating cavity 511 through the second circulation pipeline 40 and contacts with the cooling coil 52 to be effectively cooled, different solvent components in the mixed solution are separated in the accommodating cavity 511 in a layering manner, and the cooled and cooled water after separation flows back to the liquid storage tank 10, so that the temperature of the mixed solution in the water jet vacuum pump system is continuously reduced, and the purpose of improving the equipment vacuum degree of the water jet vacuum pump unit 30 is finally achieved.
Specifically, as shown in fig. 1, the second circulation pipeline 40 includes a liquid outlet pipeline 41 and a liquid return pipeline 42, a first end of the liquid outlet pipeline 41 is communicated with the liquid storage tank 10, and a second end of the liquid outlet pipeline 41 extends into the accommodating cavity 511 through a top end of the separation tank 51; a first end of the liquid return line 42 communicates with the separation tank 51, and a second end of the liquid return line 42 communicates with the liquid storage tank 10.
In the illustrated alternative embodiment of the present application, the first end of the liquid return line 42 is communicated with the separation tank 51 at a position below the separation tank 51, the second circulation line 40 further comprises a liquid return branch line 43, the first end of the liquid return branch line 43 is communicated with the separation tank 51, the communication point with the separation tank 51 is located above the separation tank 51, and the second end of the liquid return branch line 43 is communicated with the liquid return line 42. In this way, the selective use of the liquid return line 42 or the liquid return branch 43 ensures that the cooled and cooled water in the accommodating chamber 511 can be efficiently discharged back to the liquid storage tank 10, and the solvent separated by layers in the accommodating chamber 511 can be recycled.
As shown in fig. 1, in order to facilitate the collection of the solvent, a solvent discharge port 512 is formed at the bottom end of the separation tank 51, a solvent discharge pipeline 60 is disposed at the solvent discharge port 512, and at least one switch valve 70 is disposed on each of the solvent discharge pipeline 60, the liquid outlet pipeline 41, the liquid return pipeline 42, and the liquid return branch 43. The opening/closing valve 70 is provided to effectively control the opening/closing of the flow path.
As shown in fig. 1, the communication point of the first end of the liquid outlet pipe 41 and the liquid storage tank 10 is located at the middle portion of the liquid storage tank 10, so that the water and the organic solvent uniformly mixed in the liquid storage tank 10 can be effectively introduced into the second circulation pipe 40. The second end of the liquid outlet pipe 41 extends into the middle of the accommodating chamber 511. Thus, the settling separation of water and organic solvent is facilitated.
As shown in fig. 1, in order to ensure a sufficient flow of the mixed solution from the tank 10 into the separation tank 51, a first circulation pump 80 is disposed on the liquid outlet pipe 41, the first circulation pump 80 is used for pumping the mixed solution in the tank 10 into the separation tank 51, and the liquid return pipe 42 is higher than the tank 10, so that a part of the mixed solution in the separation tank 51 automatically flows into the tank 10.
Optionally, the cooling fluid inlet 521 of the cooling coil 52 is located at the bottom end of the separator tank 51, and the cooling fluid outlet 522 of the cooling coil 52 is located above the separator tank 51. In this way, the flow direction of the cooling liquid in the cooling coil 52 is opposite to the flow direction of the mixed solution in the accommodating cavity 511, which is more beneficial to cooling the mixed solution.
As shown in fig. 1, the separation tank 51 is further provided with an observation window 53 for facilitating observation of the liquid level in the separation tank 51.
As shown in fig. 1, the water spray vacuum pump unit 30 includes a second circulation pump 31 and an injector 32, the second circulation pump 31 and the injector 32 are sequentially disposed on the first circulation line 20, the injector 32 has a suction port 321, and the injector 32 sucks and injects the external solvent-containing gas into the liquid storage tank 10 through the suction port 321 in a negative pressure manner.
As shown in fig. 1, the liquid storage tank 10 has a liquid storage cavity 11, a partition plate 90 is arranged in the liquid storage cavity 11, the partition plate 90 is connected with the top wall surface of the liquid storage cavity 11 and extends downward to divide the liquid storage cavity 11 into a first cavity 111 and a second cavity 112 which are spaced apart from each other, wherein a baffling port 91 is formed between the partition plate 90 and the bottom wall surface of the liquid storage cavity 11, the first cavity 111 and the second cavity 112 are communicated through the baffling port 91, a water outlet port of the first circulation pipeline 20 is communicated with the bottom of the first cavity 111, and a water return port of the first circulation pipeline 20 is communicated with the top of the first cavity 111; the water outlet port of the second circulation pipeline 40 is communicated with the middle part of the second cavity 112, and the water return port of the second circulation pipeline 40 is communicated with the top part of the first cavity 111. This arrangement of piping is more advantageous for continuously reducing the temperature of the mixed solution in the water jet vacuum pump system.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the water injection vacuum pump system of this application simple structure, convenient to use cools off the mixed solution after heating up through water injection vacuum pump system, can also carry out the solvent separation with the mixed solution after cooling through water injection vacuum pump system, and solvent recycle reduces waste water treatment pressure, and cold water gets into liquid reserve tank 10, constantly circulates, reaches the purpose of improve equipment vacuum, improves the water utilization ratio, and the economic benefits and social benefits reduces operation manufacturing cost.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A water jet vacuum pump system, comprising:
a liquid storage tank (10) for storing the mixed solution;
the water outlet port and the water return port of the first circulating pipeline (20) are communicated with the liquid storage tank (10);
the water injection vacuum pump unit (30), the water injection vacuum pump unit (30) is arranged on the first circulation pipeline (20) to circularly inject the mixed solution in the liquid storage tank (10), and the water injection vacuum pump unit (30) is also used for sucking and injecting the external gas containing the solvent into the liquid storage tank (10) so as to mix the solvent into the mixed solution in the liquid storage tank (10);
the water outlet port and the water return port of the second circulating pipeline (40) are communicated with the liquid storage tank (10);
and the cooling and separating device (50), the cooling and separating device (50) is arranged on the second circulating pipeline (40), and the cooling and separating device (50) is used for cooling the mixed solution in the liquid storage tank (10) which enters the cooling and separating device (50) through the second circulating pipeline (40) and separating different solvent components in the mixed solution in a layering manner.
2. The water jet vacuum pump system as claimed in claim 1, wherein the cooling separation device (50) comprises a separation tank (51) and a cooling coil (52), the separation tank (51) having a housing chamber (511), the cooling coil (52) being disposed within the housing chamber (511), wherein the housing chamber (511) is in communication with the second circulation line (40), the cooling coil (52) being for passing a cooling liquid for cooling the mixed solution within the housing chamber (511).
3. The water jet vacuum pump system of claim 2 wherein the second circulation line (40) comprises:
a first end of the liquid outlet pipeline (41) is communicated with the liquid storage tank (10), and a second end of the liquid outlet pipeline (41) extends into the accommodating cavity (511) through the top end of the separation tank (51);
the first end of the liquid return pipeline (42) is communicated with the separation tank (51), and the second end of the liquid return pipeline (42) is communicated with the liquid storage tank (10).
4. The water jet vacuum pump system as claimed in claim 3 wherein a first end of the liquid return line (42) communicates with the separator tank (51) at a point below the separator tank (51), the second circulation line (40) further comprising a liquid return branch (43), a first end of the liquid return branch (43) communicating with the separator tank (51) and a point above the separator tank (51), a second end of the liquid return branch (43) communicating with the liquid return line (42).
5. The water jet vacuum pump system according to claim 4, wherein a solvent discharge port (512) is formed at a bottom end of the separation tank (51), a solvent discharge pipeline (60) is disposed at the solvent discharge port (512), and at least one switch valve (70) is disposed on each of the solvent discharge pipeline (60), the liquid outlet pipeline (41), the liquid return pipeline (42) and the liquid return branch (43).
6. The water jet vacuum pump system as claimed in claim 3 wherein a point of communication of a first end of the liquid outlet pipe (41) with the tank (10) is located in a middle portion of the tank (10), and a second end of the liquid outlet pipe (41) extends into a middle portion of the receiving chamber (511).
7. The water jet vacuum pump system as claimed in claim 3 wherein a first circulation pump (80) is provided on the liquid outlet line (41), said first circulation pump (80) being adapted to pump the mixed solution in the tank (10) into the separator tank (51), said liquid return line (42) being higher than the tank (10) such that a portion of the mixed solution in the separator tank (51) is gravity fed into the tank (10).
8. The water jet vacuum pump system of claim 2 wherein the cooling liquid inlet (521) of the cooling coil (52) is located at a bottom end of the separator tank (51) and the cooling liquid outlet (522) of the cooling coil (52) is located above the separator tank (51).
9. The water jet vacuum pump system according to claim 1, wherein the water jet vacuum pump unit (30) comprises a second circulation pump (31) and an ejector (32), the second circulation pump (31) and the ejector (32) are sequentially disposed on the first circulation pipeline (20), the ejector (32) has a suction port (321), and the ejector (32) sucks and ejects the external solvent-containing gas into the liquid storage tank (10) through the suction port (321) in a negative pressure manner.
10. The water jet vacuum pump system as claimed in claim 1, wherein the tank (10) has a tank cavity (11), a partition (90) is disposed in the tank cavity (11), the partition (90) is connected to a top wall of the tank cavity (11) and extends downward to divide the tank cavity (11) into a first cavity (111) and a second cavity (112) which are spaced apart from each other, wherein the partition (90) forms a baffle port (91) with a bottom wall of the tank cavity (11), the first cavity (111) and the second cavity (112) are communicated through the baffle port (91), the water outlet port of the first circulation pipeline (20) is communicated with a bottom of the first cavity (111), and the water return port of the first circulation pipeline (20) is communicated with a top of the first cavity (111); and a water outlet port of the second circulating pipeline (40) is communicated with the middle part of the second cavity (112), and a water return port of the second circulating pipeline (40) is communicated with the top part of the first cavity (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920626341.8U CN209976921U (en) | 2019-04-30 | 2019-04-30 | Water jet vacuum pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920626341.8U CN209976921U (en) | 2019-04-30 | 2019-04-30 | Water jet vacuum pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209976921U true CN209976921U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920626341.8U Active CN209976921U (en) | 2019-04-30 | 2019-04-30 | Water jet vacuum pump system |
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| Country | Link |
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| CN (1) | CN209976921U (en) |
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2019
- 2019-04-30 CN CN201920626341.8U patent/CN209976921U/en active Active
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