CN216647180U - Flow control valve assembly and fluid supply device - Google Patents
Flow control valve assembly and fluid supply device Download PDFInfo
- Publication number
- CN216647180U CN216647180U CN202123044311.2U CN202123044311U CN216647180U CN 216647180 U CN216647180 U CN 216647180U CN 202123044311 U CN202123044311 U CN 202123044311U CN 216647180 U CN216647180 U CN 216647180U
- Authority
- CN
- China
- Prior art keywords
- fluid
- control valve
- cavity
- valve assembly
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Flow Control (AREA)
Abstract
Embodiments of the present application provide a flow control valve assembly and a fluid supply apparatus, the flow control valve assembly including: the fluid-cooled pump comprises a shell, wherein a cavity is arranged in the shell, an inlet and an outlet are formed in the shell, the inlet is used for allowing fluid to enter the cavity, and the outlet is used for allowing the fluid to flow out of the cavity; a control valve connected to the housing, a valve element of the control valve being at least partially located within the cavity, a position of the valve element within the cavity being related to a flow rate of fluid flowing within the cavity from the inlet to the outlet; and a fluid blocker mounted to the housing, the fluid blocker blocking a flow of fluid within the cavity. Thus, the complexity of design can be reduced, and the cost can be reduced.
Description
Technical Field
The present application relates to the field of analytical instruments, and more particularly, to a flow control valve assembly and a fluid supply apparatus.
Background
In the existing mainstream analytical instrument and its pretreatment work, various gas switching and control functions need to be realized, for example: gas Chromatography (GC), gas mass spectrometry (GC-MS), atomic absorption spectroscopy (AA), inductively coupled plasma emission spectroscopy (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), headspace, Thermal Desorption (TD), and the like. The method is particularly applied to different working conditions such as gas/combustion-supporting gas flow control, gas sample injection amount control, carrier gas/purge gas control, cooling gas control and the like.
It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the utility model.
SUMMERY OF THE UTILITY MODEL
The inventors of the present application found that: the analytical instrument is high in specialty and complex in application field, research and development and production teams are often distributed in different regions and even different countries, due to the fact that a bottom layer of gas control unit with a general function is lacking, repeated design needs to be conducted on the gas control unit with the same function in different instruments, design complexity is improved, in addition, due to the fact that annual output of the analytical instrument is not high usually, purchase prices of parts such as gas execution original parts are high, and therefore the designed gas control unit often occupies a large proportion in the whole instrument cost.
In order to solve the above-mentioned problems or the like, the present application provides a flow control valve assembly and a fluid supply apparatus, in which a housing, a control valve, and a fluid stopper forming a fluid flow path are integrated into one body, and a general flow control module can be formed, whereby the flow control valve assembly can be applied to different analytical instruments by combining the flow control valve assembly or adjusting the kinds of the respective components without redesigning the flow control valve assembly, so that the complexity of design can be reduced, and the procurement cost and the production assembly and maintenance cost of parts can be reduced.
According to an aspect of an embodiment of the present application, there is provided a flow control valve assembly including:
the fluid-cooled pump comprises a shell, wherein a cavity is arranged in the shell, an inlet and an outlet are formed in the shell, the inlet is used for allowing fluid to enter the cavity, and the outlet is used for allowing the fluid to flow out of the cavity;
a control valve connected to the housing, a valve element of the control valve being at least partially located within the cavity, a position of the valve element within the cavity being related to a flow rate of fluid flowing within the cavity from the inlet to the outlet; and
a fluid blocker mounted to the housing, the fluid blocker blocking flow of fluid within the cavity.
According to another aspect of an embodiment of the present application, wherein the control valve is a Solenoid valve (Solenoid valve).
According to another aspect of an embodiment of the present application, wherein the flow control valve assembly further comprises:
the sensor is connected with the shell, a sensing part of the sensor is at least partially positioned in the cavity and used for detecting the physical quantity of the fluid in the cavity, and the control valve receives the physical quantity detected by the sensor and controls the position of the valve core in the cavity according to the physical quantity.
According to another aspect of embodiments herein, the sensor comprises:
a flow rate sensor that detects the physical quantity as a flow rate of the fluid; and/or a pressure sensor, wherein the physical quantity detected by the pressure sensor is the pressure of the fluid.
According to another aspect of an embodiment of the present application, wherein the control valve comprises:
proportional valve (proportional valve) and/or Solenoid valve (Solenoid valve).
According to another aspect of embodiments of the present application, wherein the pressure sensor is disposed on a side of the fluid blocker closer to the inlet.
According to another aspect of an embodiment of the present application, wherein the type of the proportional valve and/or the type of the fluid blocker correspond to the type of the fluid and/or a pressure of the fluid.
According to another aspect of an embodiment of the present application, wherein the fluid blocker is mounted to the outlet.
According to another aspect of an embodiment of the present application, there is provided a fluid supply apparatus including the flow control valve assembly of any one of the above-described embodiments.
According to another aspect of the embodiments of the present application, wherein the number of the flow control valve assemblies in the fluid supply apparatus is 2 or more.
The utility model has the beneficial effects that: a general flow control module can be formed, whereby the flow control valve assembly can be adapted to different analysis instruments without redesigning the flow control valve assembly, only by combining the flow control valve assembly or adjusting the kinds of the respective components, so that the complexity of design can be reduced and the cost can be reduced.
Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not so limited in scope. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of the flow control valve assembly of the present example 1 of the application;
FIG. 2 is a schematic diagram of the principle of the flow control valve assembly when the sensor is a pressure sensor;
FIG. 3 is a schematic illustration of the flow in the pipeline;
FIG. 4 is a schematic view of the principle of the flow control valve assembly when the sensor is a flow sensor;
fig. 5 is a schematic view of a fluid supply apparatus.
Detailed Description
The foregoing and other features of the utility model will become apparent from the following description taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the utility model have been disclosed in detail as being indicative of some of the embodiments in which the principles of the utility model may be employed, it being understood that the utility model is not limited to the embodiments described, but, on the contrary, is intended to cover all modifications, variations, and equivalents falling within the scope of the appended claims.
In the embodiments of the present application, the terms "first", "second", and the like are used for distinguishing different elements by reference, but do not denote a spatial arrangement, a temporal order, or the like of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, or groups, but do not preclude the presence or addition of one or more other features, elements, components, or groups thereof.
In the embodiments of the present application, the singular forms "a", "an", and the like include the plural forms and are to be construed broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "the" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.
Example 1
The embodiment 1 of the present application provides a flow control valve assembly.
Fig. 1 is a schematic view of a flow control valve assembly of the present embodiment 1.
As shown in fig. 1, the flow control valve assembly 100 includes: a housing 1, a control valve 2 and a fluid damper 3.
In the present embodiment, the interior of the housing 1 has a cavity 1A, and the cavity 1A can contain a fluid. The housing 1 is provided with an inlet 11 and an outlet 12, wherein the inlet 12 is used for fluid to enter the cavity 1A, and the outlet 12 is used for fluid to flow out of the cavity 1A.
The control valve 2 is connected to the housing 1. The spool 21 of the control valve 2 is at least partially located within the cavity 1A. The position of the spool 21 in the chamber 1A is related to the flow rate of the fluid flowing from the inlet 11 to the outlet 12 in the chamber 1A, that is, the flow rate of the fluid flowing out of the outlet 2 can be adjusted by adjusting the position of the spool 21 in the chamber 1A. The valve core 21 can enter the cavity 1A through a valve core opening formed in the housing 1.
The control valve 2 may be, for example, a proportional valve (proportional valve) or a Solenoid valve (solid valve). Furthermore, the number of control valves 2 can also be more than one, for example: a plurality of proportional valves; alternatively, some (e.g., 1) are proportional valves and the remaining (e.g., the other 1) are solenoid valves, etc.
The fluid damper 3 may be mounted to the housing 1. The fluid blocker 3 may be in series with a flow path of the fluid flowing between the inlet 11 and the outlet 12, thereby blocking the flow of the fluid in the chamber 1A, i.e., the fluid blocker 3 provides an appropriate resistance to the flow of the fluid. For example, the fluid damper 3 may be mounted to the outlet 12 of the housing 1.
The fluid damper 3 may be plate-shaped or columnar, etc. The fluid stopper 3 is provided with holes, and the number and the size of the holes can adjust the resistance. The number and size of the holes may be determined according to the kind of fluid and the pressure of the fluid.
According to embodiment 1, in the flow rate control valve assembly 100 of the present invention, the housing 1, the control valve 2, and the fluid stopper 3 forming the fluid flow path are integrated, and a general flow rate control module integrating flow path control and flow rate control functions can be formed, so that the flow rate control valve assembly 100 can be applied to different analytical instruments by combining or adjusting the kinds of the corresponding components, and thus, it is not necessary to redesign the flow rate control valve assembly, and thus, the complexity of design can be reduced, and the structure of the flow rate control valve assembly 100 is unified, and thus, the production assembly and maintenance costs can be reduced, and the procurement costs of parts can be reduced.
In the present embodiment, the fluid flowing into the chamber 1A may be gas, liquid, a mixture of gas and liquid, or the like. That is, the flow control valve assembly 100 of the present application is suitable for flow control of a gas, a liquid, or a mixture of gas and liquid.
In the present embodiment, as shown in fig. 1, the flow control valve assembly 100 further includes: a sensor 4. The sensor 4 may be connected to the housing 1 and the sensing member 41 of the sensor 4 is at least partially located inside the cavity 1A for detecting a physical quantity of the fluid inside the cavity 1A.
The control valve 2 may be connected to the sensor 4 by wire or wirelessly so as to receive the physical quantity detected by the sensor 4. The control valve 2 may control the position of the spool 21 in the chamber 1A according to the physical quantity detected by the sensor 4, thereby adjusting the flow rate of the fluid flowing out of the outlet 12.
In the present embodiment, the sensor 4 may be a flow sensor and/or a pressure sensor. The physical quantity detected by the flow sensor is the flow of the fluid in the cavity 1A; the physical quantity detected by the pressure sensor is the pressure of the fluid in the chamber 1A.
Thereby, the sensor 4 and the control valve 2 can perform feedback control of the flow rate of the fluid.
The principle of the flow rate control valve assembly 100 will be described below by taking the control valve 2 as a proportional valve as an example.
Fig. 2 is a schematic diagram of the principle of the flow control valve assembly 100 when the sensor 4 is a pressure sensor 4A. As shown in fig. 2, the flow direction of the fluid is D, the pressure sensor 4A detects the pressure of the fluid in the cavity, and feeds back the detected pressure to the control valve 2, and the proportional valve serving as the control valve 2 adjusts the opening degree or duty ratio thereof (i.e., adjusts the position of the spool) according to the fed-back pressure, thereby adjusting the flow rate of the fluid.
Fig. 3 is a schematic diagram of the flow in the pipeline. As shown in fig. 3, in the pipeline 300 of the flow of the fluid, there is a narrow hole 301, the flow direction of the fluid is D, the fluid pressure on the front side of the narrow hole 301 (i.e., the upstream side in the flow direction D of the fluid) is P1, and the fluid pressure on the rear side of the narrow hole 302 (i.e., the downstream side in the flow direction D of the fluid) is P2. In the case where the pressure ratio P2/P1 is 0.528 or less between the rear side and the front side of the narrow bore 301, the fluid flow V through the line 300 is approximately linear with respect to the pressure ratio (P2/P1). Thus, a change in the fluid flow V in the line 300 can be achieved by changing the pressure P1 on the front side of the orifice 301, while the pressure P2 on the rear side of the orifice 302 remains constant.
For the practical application of fig. 2, the function of the narrow hole 301 in fig. 3 can be realized by the fluid damper 3, the pressure P2 of the fluid on the rear side of the fluid damper 3 can be kept constant by setting the structure of the casing 1 in fig. 1, and the pressure P1 of the fluid on the front side of the fluid damper 3 can be adjusted by controlling the valve 2 (for example, a proportional valve), so that P2/P1 is changed, thereby achieving the effect of adjusting the flow rate of the fluid. The pressure sensor 4A may detect a pressure P1 of the fluid in front of the fluid damper 3, feed back the detected pressure P1 to the control valve 2, and control the opening degree or duty ratio of the proportional valve by comparing the fed-back pressure P1 with a target pressure as the proportional valve of the control valve 2, thereby adjusting the flow rate of the fluid.
For the practical application of fig. 2, the fluid blocking device 3 with different apertures and/or the proportional valve with different pressure regulating ranges may be selected as the control valve 2 according to different flow regulating ranges to be achieved, different pressures P2 of the fluid at the rear side of the fluid blocking device 3, different types of fluids, and the like.
According to fig. 2, the pressure sensor 4A of a relatively low cost can be used to achieve the flow rate control effect.
Figure 4 is a schematic diagram of the principle of the flow control valve assembly when the sensor 4 is a flow sensor 4B. As shown in fig. 4, the flow direction of the fluid is D, the flow sensor 4B detects the flow rate of the fluid in the cavity, and feeds back the detected flow rate to the control valve 2, and the proportional valve serving as the control valve 2 adjusts the opening degree or duty ratio thereof (i.e., adjusts the position of the spool) according to the fed-back flow rate, thereby adjusting the flow rate of the fluid. In addition, fig. 4 shows the fluid barrier 3.
Further, although not shown in fig. 4, a pressure sensor may be mounted on the housing 1 (not shown in fig. 4) in addition to the flow sensor 4B, that is, the flow control valve assembly has both a pressure sensor and a flow sensor.
In one embodiment of the present embodiment, as shown in fig. 1, the flow control valve assembly 100 may not have the sensor 4 for detecting the physical quantity of the fluid in the chamber 1A, and the control valve 2 may be a Solenoid valve (Solenoid valve). Thus, the flow rate control valve assembly 100 can realize a fixed flow rate passage on/off function, that is, a flow passage opening/closing function.
According to embodiment 1 of the present application, in the flow rate control valve assembly 100 of the present application, the housing 1, the control valve 2, and the fluid stopper 3, which form the fluid flow path, are integrated, so that it is possible to form a general flow rate control module that integrates flow path control and flow rate control functions. Thus, the flow rate control valve assembly 100 of the present application can achieve the following effects:
1. shortening new product development period
Based on the flow control valve assembly and the combination of the flexible control valve and the fluid stopper, the novel gas circuit module can meet the requirements of single-channel flow regulation or switch application in a large range under different gas sources and different pressures. For a multi-channel gas circuit, this may be achieved by combining flow control valve assemblies. Therefore, the design verification time of the new product in the early stage is greatly shortened.
2. Reduce the cost
The use of a common flow control valve assembly in different instruments can greatly reduce the material cost of a single piece flow control valve assembly. In addition, some processes (such as cold pressing and die casting of gas circuit blocks, injection molding of shells, thermal deburring and the like) which are limited by annual low use of single instruments and cannot be used can be used on the universal flow control valve assembly, so that the material cost is reduced. In addition, the purchasing cost can be further reduced by uniformly selecting components such as a control valve, a fluid stopper and the like in the flow control valve component.
3. Easy to assemble and maintain
The flow control valve assembly has a uniform internal structure, so that the assembly process can be simplified, and the assembly efficiency can be improved. In addition, for the user end, the maintenance cost of different products can be reduced.
Example 2
Fig. 5 is a schematic view of a fluid supply apparatus. As shown in fig. 5, the fluid supply apparatus 500 includes: the flow rate control valve assembly 100 and the pipe 501 described in embodiment 1.
Since the structure and the operation principle of the flow control valve assembly 100 have been described in detail in embodiment 1, the contents thereof are incorporated herein, and the description thereof is omitted here.
As shown in fig. 5, in the fluid supply apparatus 500, a pipe 501 is used to convey a fluid, and the flow control valve assembly 100 is connected to the pipe 501. The fluid supply apparatus 500 shown in fig. 5 has 3 flow control valve assemblies 100 therein, but the embodiment is not limited thereto, and for example, the number of flow control valve assemblies 100 included in the fluid supply apparatus 500 may be 1, 2, or 4 or more, that is, in the fluid supply apparatus 500, 2 or more flow control valve assemblies 100 may be multiplexed.
The fluid supplied by the fluid supply device 500 may be in a gaseous state, a liquid state, or a gas-liquid mixed state. The fluid supply apparatus 500 may supply a fluid (e.g., a gas) into an analysis device such as a flame particle detector (FID), a thermal conductivity cell detector (TCD), a Nitrogen Phosphorus Detector (NPD), an Electron Capture Detector (ECD), an atomic absorption spectroscopy (AA) instrument, an inductively coupled plasma emission spectrometer (ICP-OES), or the like.
According to the present embodiment, in the flow control valve assembly 100 of the fluid supply apparatus, the housing 1, the control valve 2, and the fluid stopper 3 forming the fluid flow path are integrated, and a general flow control module integrating flow path control and flow control functions can be formed, whereby the flow control valve assembly 100 can be applied to different analytical instruments by combining or adjusting the kinds of the respective components, and thus, it is not necessary to redesign the flow control valve assembly, so that the complexity of design can be reduced, and the structure of the flow control valve assembly 100 is unified, so that the production assembly and maintenance costs can be reduced, and the procurement costs of parts can be reduced; further, the cost of the fluid supply apparatus 500 is reduced.
The present application has been described in conjunction with specific embodiments, but it should be understood by those skilled in the art that these descriptions are intended to be illustrative, and not limiting. Various modifications and adaptations of the present application may occur to those skilled in the art based on the spirit and principles of the application and are within the scope of the application.
Claims (10)
1. A flow control valve assembly, comprising:
the fluid-cooled pump comprises a shell, wherein a cavity is arranged in the shell, an inlet and an outlet are formed in the shell, the inlet is used for allowing fluid to enter the cavity, and the outlet is used for allowing the fluid to flow out of the cavity;
a control valve connected to the housing, a valve spool of the control valve being at least partially located within the cavity, a position of the valve spool within the cavity being related to a flow rate of fluid flowing within the cavity from the inlet to the outlet; and
a fluid blocker mounted to the housing, the fluid blocker blocking flow of fluid within the cavity.
2. The flow control valve assembly of claim 1,
the control valve is a solenoid valve.
3. The flow control valve assembly of claim 1,
the flow control valve assembly further comprises:
a sensor connected to the housing and having a sensing component at least partially located inside the cavity for detecting a physical quantity of the fluid within the cavity,
wherein, the first and the second end of the pipe are connected with each other,
and the control valve receives the physical quantity detected by the sensor and controls the position of the valve core in the cavity according to the physical quantity.
4. The flow control valve assembly of claim 3,
the sensor includes:
a flow rate sensor that detects the physical quantity as a flow rate of the fluid; and/or
A pressure sensor that detects the physical quantity as a pressure of the fluid.
5. The flow control valve assembly of claim 4,
the pressure sensor is disposed on a side of the fluid resistor closer to the inlet.
6. The flow control valve assembly of claim 3,
the control valve includes:
proportional valves and/or solenoid valves.
7. The flow control valve assembly of claim 6,
the type of the proportional valve and/or the type of the fluid damper corresponds to the type of the fluid and/or the pressure of the fluid.
8. The flow control valve assembly of claim 1,
the fluid blocker is mounted to the outlet.
9. A fluid supply arrangement comprising a flow control valve assembly as claimed in any one of claims 1 to 8.
10. The fluid supply apparatus of claim 9,
the number of the flow control valve assemblies in the fluid supply device is more than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123044311.2U CN216647180U (en) | 2021-12-06 | 2021-12-06 | Flow control valve assembly and fluid supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123044311.2U CN216647180U (en) | 2021-12-06 | 2021-12-06 | Flow control valve assembly and fluid supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216647180U true CN216647180U (en) | 2022-05-31 |
Family
ID=81739035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123044311.2U Active CN216647180U (en) | 2021-12-06 | 2021-12-06 | Flow control valve assembly and fluid supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216647180U (en) |
-
2021
- 2021-12-06 CN CN202123044311.2U patent/CN216647180U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR940010028B1 (en) | Method and apparatus for metering fuel | |
| KR101936189B1 (en) | Pressure balanced valve | |
| US7455073B2 (en) | Variable flow valve | |
| CN203935755U (en) | For backpurge system and the device of chromatogram | |
| KR101690810B1 (en) | In-line pressure regulators | |
| US10388498B2 (en) | Gas flow control | |
| US9371931B2 (en) | Gas control valve | |
| TW200710374A (en) | Absolute flow rate calibration system in flow rate control device | |
| CN103429940A (en) | Improvement in balancing and control valve | |
| JP2004505331A (en) | Pressure control device for pipeline | |
| JP2009538472A (en) | Sanitary fluid pressure regulator | |
| US20030085714A1 (en) | Mass flow control in a process gas analyzer | |
| CN216647180U (en) | Flow control valve assembly and fluid supply device | |
| AU598030B2 (en) | Liquid chromatograph apparatus | |
| EP1621949A3 (en) | Pressure regulator | |
| CN103995071A (en) | Split-channel gas flow control | |
| US20090101213A1 (en) | Apparatus for controlling and metering fluid flow | |
| CA2542466C (en) | Fan with laminar flow element in front of the suction hole | |
| CN100381815C (en) | Flow regulator device for analyzing loop and its application in chromatography | |
| CN101694491B (en) | Minitype liquid flux distributor used for multi-passage biochemical analyzer | |
| US20240199403A1 (en) | Metering device for adjusting and/or controlling a gas flow, method for adjusting and/or controlling a gas flow, and domestic appliance assembly | |
| CN103392158A (en) | Gas flow regulator with multiple gas flow passages | |
| US20200348160A1 (en) | Flow laminator | |
| JPH08101176A (en) | Gas chromatograph | |
| SU832472A1 (en) | Device for introducing samples into gas chromatograph |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |