Reciprocating type dosing pump system

Abstract

The invention discloses a reciprocating type dosing pump system, and relates to the field of dosing pump systems.In the liquid conveying process of the reciprocating type dosing pump system, energy is stored in an energy accumulator in the system while liquid medicine is conveyed to a second container, that is, the liquid medicine is conveyed to the energy accumulator in the system; in the liquid suction process, when the dosing pump pumps liquid medicine in the first container to the pump cavity of the dosing pump, the energy accumulator in the system can release energy to convey the stored liquid medicine to the second container, the purpose of continuously supplying liquid to the second container is achieved, and therefore the purpose that the system continuously supplies liquid to the second container is achieved; the defects of the operation condition of intermittent chemical supply in the prior art are overcome, system pressure fluctuation is relieved, then the problem of system pipeline vibration is solved, and the system health level is improved.

Description

Technical Field

[0001] The present application relates to the technical field of dosing pump systems, and in particular to a reciprocating dosing pump system. Background Art

[0002] At present, the working process of the reciprocating dosing pump system is divided into a liquid suction process and a liquid delivery process, which repeatedly forms a liquid suction and liquid delivery process.

[0003] However, the current reciprocating dosing pump system is unable to deliver liquid during the process of sucking liquid, that is, there are problems such as intermittent drug supply, system pressure fluctuation, and system pipeline vibration caused by system pressure fluctuation. Summary of the invention

[0004] In view of the above problems, the present application provides a reciprocating dosing pump system to achieve the purpose of continuous drug supply. The specific scheme is as follows:

[0005] In a first aspect, the present application provides a reciprocating dosing pump system, the reciprocating dosing pump system comprising: a first container, a second container, and a first delivery pipeline connecting the first container and the second container;

[0006] A dosing pump installed on the first delivery pipeline;

[0007] an accumulator installed on the first delivery pipeline between the dosing pump and the second container;

[0008] The working process of the reciprocating dosing pump system includes a liquid suction process and a liquid delivery process;

[0009] During the liquid aspiration process, the drug dosing pump draws the drug liquid in the first container into the pump chamber of the drug dosing pump, and the accumulator delivers the stored drug liquid to the second container;

[0010] During the liquid delivery process, the drug-adding pump delivers the drug liquid in the pump chamber to the energy accumulator and the second container respectively.

[0011] In a possible implementation, the dosing pump includes: a cylinder connected to the pump chamber;

[0012] a piston located within the cylinder;

[0013] an inlet check valve and an outlet check valve respectively located at two ends of the pump chamber;

[0014] The first container is connected to the inlet one-way valve through the first delivery pipeline; the outlet one-way valve is respectively connected to the energy accumulator and the second container through the first delivery pipeline.

[0015] In one possible implementation, during the liquid aspiration process, the piston moves in the cylinder along a first direction, the pressure in the pump chamber decreases, the outlet one-way valve is in a closed state, and the inlet one-way valve is in an open state, and the liquid medicine in the first container is drawn into the pump chamber of the dosing pump.

[0016] In a possible implementation, during the liquid delivery process, the piston moves in the cylinder along the second direction, the pressure in the pump chamber increases, the outlet one-way valve is in an open state, and the inlet one-way valve is in a closed state, and the liquid medicine in the pump chamber is delivered to the accumulator and the second container respectively;

[0017] The first direction and the second direction are two opposite directions.

[0018] In a possible implementation, the reciprocating dosing pump system further includes a plurality of second delivery pipelines connected to the second container;

[0019] The type of the medical liquid transported in the second transport pipeline is different from the type of the medical liquid transported in the first transport pipeline.

[0020] In a possible implementation, at least two of the plurality of second delivery pipelines deliver different types of medical liquids.

[0021] In a possible implementation, the first conveying pipeline and the second conveying pipeline have different sizes.

[0022] In a possible implementation, at least two of the plurality of second delivery pipelines deliver goods of different sizes.

[0023] By means of the above technical scheme, the present application provides a reciprocating dosing pump system comprising: a first container, a second container and a first delivery pipe connecting the first container and the second container; a dosing pump installed on the first delivery pipe; an accumulator installed on the first delivery pipe between the dosing pump and the second container; the working process of the reciprocating dosing pump system comprises a liquid suction process and a liquid delivery process; during the liquid suction process, the dosing pump draws the liquid medicine in the first container into the pump chamber of the dosing pump, and the accumulator delivers the stored liquid medicine to the second container; during the liquid delivery process, the dosing pump delivers the liquid medicine in the pump chamber to the accumulator and the second container respectively. During the liquid delivery process, the reciprocating dosing pump system not only delivers liquid medicine to the second container but also stores energy in the accumulator in the system, that is, it also delivers liquid medicine to the accumulator in the system; during the liquid aspiration process, when the dosing pump draws liquid medicine in the first container into the pump chamber of the dosing pump, the accumulator in the system releases energy to deliver the stored liquid medicine to the second container, thereby continuing to supply liquid to the second container, thereby achieving the purpose of continuously supplying liquid to the second container, solving the disadvantages of the intermittent drug supply operating conditions in the prior art, slowing down the system pressure fluctuation, thereby eliminating the system pipeline vibration problem, and improving the system health level. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0025] Figure 1 A schematic diagram of the principle structure of a reciprocating dosing pump system provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the structure of a dosing pump provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. The terms used in the implementation method section of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0028] The embodiments of the present application are described below in conjunction with the accompanying drawings. Those skilled in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0029] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] refer to Figure 1 , Figure 1 A schematic diagram of the principle structure of a reciprocating dosing pump system provided in an embodiment of the present application; Figure 2 , Figure 2 The reciprocating dosing pump system provided in the embodiment of the present application comprises: a first container 11 , a second container 12 , and a first delivery pipe 13 connecting the first container 11 and the second container 12 .

[0031] A dosing pump 14 is installed on the first delivery pipeline 13 .

[0032] An energy accumulator 15 is installed on the first delivery pipe 13 between the dosing pump 14 and the second container 12 .

[0033] The working process of the reciprocating dosing pump system includes the liquid suction process and the liquid delivery process.

[0034] During the liquid aspiration process, the dosing pump 14 draws the liquid medicine in the first container 11 into the pump chamber of the dosing pump 14 , and the accumulator 15 delivers the stored liquid medicine to the second container 12 .

[0035] During the liquid delivery process, the dosing pump 14 delivers the liquid in the pump chamber to the accumulator 15 and the second container 12 respectively.

[0036] Specifically, in the embodiment of the present application, the dosing pump 14 includes: a cylinder 142 connected to a pump chamber 141; a piston 143 located in the cylinder 142; an inlet check valve 144 and an outlet check valve 145 located at both ends of the pump chamber 141; the first container 11 is connected to the inlet check valve 144 through the first delivery pipeline 13; and the outlet check valve 145 is connected to the accumulator 15 and the second container 12 through the first delivery pipeline 13. During the liquid aspiration process, the piston 143 moves in the cylinder 142 along a first direction (for example, from right to left), the outlet check valve 145 is in a closed state, and the inlet check valve 144 is in an open state, and the liquid in the first container 11 is drawn into the pump chamber 141 of the dosing pump 14. During the liquid delivery process, the piston 143 moves in the cylinder 142 along the second direction (for example, from left to right), the outlet one-way valve 145 is in an open state, and the inlet one-way valve 144 is in a closed state, and the liquid in the pump chamber 141 is delivered to the accumulator 15 and the second container 12 respectively; the first direction and the second direction are two opposite directions.

[0037] During the liquid delivery process, the reciprocating dosing pump system not only delivers liquid medicine to the second container 12, but also stores energy in the accumulator 15 in the system, that is, it also delivers liquid medicine to the accumulator 15 in the system; during the liquid aspiration process, when the dosing pump 14 draws the liquid medicine in the first container 11 into the pump chamber 141 of the dosing pump 14, the accumulator 15 in the system will release energy to deliver the stored liquid medicine to the second container 12, so as to continue to supply liquid to the second container 12, thereby achieving the purpose of continuously supplying liquid to the second container 12, solving the disadvantages of the intermittent drug supply operating conditions in the prior art, slowing down the system pressure fluctuation, thereby eliminating the system pipeline vibration problem, and improving the system health level.

[0038] In one possible implementation, Figure 1 As shown, the reciprocating dosing pump system further includes a plurality of second delivery pipes 16 connected to the second container 12 .

[0039] The type of the liquid medicine transported in the second transport pipe 16 is different from the type of the liquid medicine transported in the first transport pipe 13 .

[0040] Specifically, in the embodiment of the present application, a second delivery pipeline 16 may be provided to deliver different types of liquid medicines, thereby avoiding the use of the same delivery pipeline to deliver different types of liquid medicines, thereby improving the purity of each liquid medicine.

[0041] In a possible implementation, at least two of the plurality of second delivery pipelines 16 deliver different types of medical liquids.

[0042] Specifically, in the embodiment of the present application, at least two of the multiple second delivery pipelines 16 transport different types of liquid medicine, so different second delivery pipelines 16 are used to transport liquid medicine of different types, avoiding the use of the same delivery pipeline to transport liquid medicine of different types, thereby improving the purity of each liquid medicine.

[0043] In a possible implementation, the first conveying pipe 13 and the second conveying pipe 16 have different sizes.

[0044] And / or, at least two of the plurality of second delivery pipelines 16 deliver materials of different sizes.

[0045] Specifically, in the embodiments of the present application, delivery pipes of different sizes are used to meet the requirements for the drug delivery flow rate under different working conditions.

[0046] The above is a detailed introduction to a reciprocating dosing pump system provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

[0047] It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0048] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device that includes a series of elements is inherent to the elements, or also includes elements inherent to these processes, methods, articles or devices. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reciprocating dosing pump system, characterized in that: The reciprocating dosing pump system comprises: a first container, a second container, and a first delivery pipeline connecting the first container and the second container; A dosing pump installed on the first delivery pipeline; an accumulator installed on the first delivery pipeline between the dosing pump and the second container; The working process of the reciprocating dosing pump system includes a liquid suction process and a liquid delivery process; During the liquid aspiration process, the drug dosing pump draws the drug liquid in the first container into the pump chamber of the drug dosing pump, and the accumulator delivers the stored drug liquid to the second container; During the liquid delivery process, the drug-adding pump delivers the drug liquid in the pump chamber to the energy accumulator and the second container respectively.

2. The reciprocating dosing pump system according to claim 1, characterized in that: The dosing pump comprises: a cylinder connected to the pump chamber; a piston located within the cylinder; an inlet check valve and an outlet check valve respectively located at two ends of the pump chamber; The first container is connected to the inlet one-way valve through the first delivery pipeline; the outlet one-way valve is respectively connected to the energy accumulator and the second container through the first delivery pipeline.

3. The reciprocating dosing pump system according to claim 2, characterized in that: During the liquid aspiration process, the piston moves in the cylinder along a first direction, the outlet one-way valve is in a closed state, and the inlet one-way valve is in an open state, and the liquid medicine in the first container is drawn into the pump chamber of the dosing pump.

4. The reciprocating dosing pump system according to claim 3, characterized in that: During the liquid delivery process, the piston moves in the cylinder along the second direction, the outlet one-way valve is in an open state, and the inlet one-way valve is in a closed state, so that the liquid in the pump chamber is delivered to the accumulator and the second container respectively; The first direction and the second direction are two opposite directions.

5. The reciprocating dosing pump system according to any one of claims 1 to 4, characterized in that: The reciprocating dosing pump system further comprises a plurality of second delivery pipelines connected to the second container; The type of the medical liquid transported in the second transport pipeline is different from the type of the medical liquid transported in the first transport pipeline.

6. The reciprocating dosing pump system according to claim 5, characterized in that: At least two of the plurality of second delivery pipelines deliver different types of liquid medicine.

7. The reciprocating dosing pump system according to claim 5, characterized in that: The first delivery conduit and the second delivery conduit have different sizes.

8. The reciprocating dosing pump system according to claim 5, characterized in that: At least two of the plurality of second delivery pipelines deliver materials of different sizes.

Images