Throttling orifice plate, throttling orifice device, refrigerant circulating system and refrigeration equipment
The adjustable orifice nozzle plate with controlled leaflets addresses the inefficiencies of fixed orifices and ball valves by enabling low-cost, performance-preserving adjustments in centrifugal chillers.
Patent Information
- Application Number
- CN202422094774.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The throttling device of the existing centrifugal chiller has the problem of high cost, large performance losses and the optimal solution, especially the fixed-sized orifice plates and ball valves cannot be flexibly adjusted, resulting in high manufacturing costs and performance losses.
A throttle orifice plate with adjustable aperture is designed to form a controllable throttle through the adjustment of the blades. The guide structure and adjustment components are used to achieve flexible adjustment of the aperture, and the shape is close to circular to reduce performance losses.
The optimal performance of the centrifugal chiller is achieved at a low cost, reducing performance losses, and adapting to changes in working conditions without frequent replacement of orifices, reducing manufacturing costs.
Smart Images
Figure CN223104805U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of throttling devices, and particularly relates to a throttling orifice plate, a device, a refrigerant circulation system, and a refrigeration device. Background Art
[0002] Centrifugal chillers have a large refrigerating capacity, so generally a fixed-size orifice plate or a ball valve is used for throttling. Its function is to turn the high-temperature and high-pressure liquid in the condenser into a low-temperature and low-pressure liquid refrigerant and enter the economizer or evaporator.
[0003] In the related art, the throttling of centrifugal chillers uses a fixed-size orifice plate or a ball valve for throttling. By testing the performance of the chiller, the optimal solutions of the orifice plate and the ball valve are obtained, so as to obtain the best performance of the unit. The defect of using a fixed-size orifice plate as a throttling device is that after each test, the refrigerant needs to be recovered for orifice plate replacement, which requires a large amount of tests and orifice plate replacement time, resulting in a relatively high manufacturing cost of the unit. And since the size of the orifice plate is fixed, the optimal solution cannot be obtained, and only an orifice plate combination close to the optimal solution can be obtained. Using a ball valve or other throttling devices for throttling can save the time for replacing the orifice plate, but the cost of the ball valve or other throttling devices is relatively high, and the cross-sectional shape cannot be adjusted to be close to a circle, resulting in a certain loss of performance. Summary of the Invention
[0004] The purpose of this application is to solve at least one of the technical problems existing in the prior art. For this reason, this application provides a throttling orifice plate, the aperture of which can be adjusted, so that the best performance of a centrifugal chiller can be adjusted at low cost, and based on the design of the blades, the passing shape of the throttling orifice plate is controllable and the performance loss is small.
[0005] This application also provides a throttling device including the above-mentioned throttling orifice plate.
[0006] This application also provides a refrigerant circulation system including the above-mentioned throttling device.
[0007] This application also provides a refrigeration device including the above-mentioned refrigerant circulation system.
[0008] The throttling orifice plate according to the first aspect embodiment of this application includes:
[0009] A housing, formed with a circulation port;
[0010] Multiple blades, movably arranged on the housing, and the multiple blades can cooperate with each other to enclose a throttling port with a preset shape, and the throttling port is used to communicate with the circulation port;
[0011] An adjusting member, used to drive each of the blades to move synchronously, so that the aperture size of the throttling port is adjustable.
[0012] The throttle orifice plate according to the embodiment of the first aspect of the present application has at least the following beneficial effects: The adjusting member drives the blades to move, so that the aperture of the throttle opening formed by multiple blades can be adjusted, thereby being able to adjust the optimal performance of the centrifugal chiller at low cost, and based on the design of the blades, the passing shape of the throttle orifice plate is controllable and the performance loss is small.
[0013] For the throttle orifice plate according to the embodiment of the first aspect of the present application, the adjusting member includes a guide disc, the guide disc is rotatably arranged on the housing, the guide disc includes a plurality of guiding structures, and each of the guiding structures is used to guide the movement of each of the blades respectively, so that each of the blades can move synchronously relatively away from or relatively close to each other, thereby adjusting the aperture of the throttle opening.
[0014] For the throttle orifice plate according to the embodiment of the first aspect of the present application, the blade includes a first guiding pin, the guiding structure is formed with a first guiding groove, the guide disc further includes an outer ring part and an inner ring part, one end of the guiding structure is internally connected to the outer ring part, the other end of the guiding structure is externally connected to the inner ring part, and the first guiding pin is slidably arranged in the first guiding groove, so that each of the blades can cooperate with each other within the inner ring part to form the throttle opening.
[0015] For the throttle orifice plate according to the embodiment of the first aspect of the present application, each of the guiding structures is inclined and arranged at intervals between the outer ring part and the inner ring part, and the extending direction of the first guiding groove is parallel to the extending direction of the guiding structure. One end of each of the guiding structures is respectively arranged at each top position of the inscribed regular polygon of the outer ring part, and the other end of each of the guiding structures is respectively arranged at each top position of the circumscribed regular polygon of the inner ring part.
[0016] For the throttle orifice plate according to the embodiment of the first aspect of the present application, each of the blades respectively includes a second guiding pin, the first guiding pin and the second guiding pin are respectively located on opposite two surfaces of the blade, and a second guiding groove is arranged in the housing, and each of the second guiding pins is slidably arranged at intervals on the second guiding groove.
[0017] For the throttle orifice plate according to the embodiment of the first aspect of the present application, the adjusting member further includes an operating member and a transmission rod assembly, and the operating member is connected to the guide disc through the transmission rod assembly, so that the operating member can drive the guide disc to rotate.
[0018] For the throttle orifice plate according to the embodiment of the first aspect of the present application, the cross-sectional shape of the throttle opening is circular.
[0019] The throttle device according to the embodiment of the second aspect of the present application includes: the throttle orifice plate as described in the embodiment of the first aspect of the present application.
[0020] The refrigerant circulation system according to the third aspect embodiment of the present application includes: a throttling device as described in the second aspect embodiment of the present application.
[0021] The refrigeration device according to the fourth aspect embodiment of the present application includes: a refrigerant circulation system as described in the third aspect embodiment of the present application.
[0022] It is not difficult to understand that the throttling device in the second aspect embodiment of the present application, the refrigerant circulation system in the third aspect embodiment of the present application, and the refrigeration device in the fourth aspect embodiment of the present application all have the technical effects of the orifice plate in the first aspect embodiment as described above, and thus will not be elaborated here.
[0023] The additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. Description of the Drawings
[0024] The present application will be further described below in conjunction with the drawings and embodiments;
[0025] Figure 1 It is a schematic structural diagram of an embodiment of the present application;
[0026] Figure 2 It is a schematic diagram of a guide disk in an embodiment of the present application;
[0027] Figure 3 It is a schematic diagram of a housing in an embodiment of the present application;
[0028] Figure 4 It is a schematic diagram of a blade in an embodiment of the present application.
[0029] Reference Signs:
[0030] 100, housing; 110, circulation port; 120, second guide groove;
[0031] 200, blade; 210, first guide pin; 220, second guide pin; 230, throttling port;
[0032] 300, adjustment component; 310, guide disk; 311, guide structure; 3111, first guide groove; 312, outer ring part; 313, inner ring part; 320, operating member; 330, transmission rod assembly. Detailed Embodiments
[0033] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.
[0034] In the description of the present application, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.
[0035] In the description of the present application, the meaning of several is one or more, the meaning of multiple is at least two, greater than, less than, exceeding, etc. are understood as not including the recited number, and above, below, within, etc. are understood as including the recited number. If the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0036] In the description of the present application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above terms in the present application after combining with the specific content of the technical solution.
[0037] Refer to Figures 1 to 4 , the orifice plate according to the first aspect embodiment of the present application is applied to a throttling device. The orifice plate includes a housing 100, a plurality of blades 200, and an adjusting member 300.
[0038] The housing 100 is formed with a flow port 110; the plurality of blades 200 are movably arranged on the housing 100, and the plurality of blades 200 can cooperate with each other to enclose a throttling port 230 with a preset shape, and the throttling port 230 is used to communicate with the flow port 110; the adjusting member 300 is used to drive each blade 200 to move synchronously so that the caliber of the throttling port 230 can be adjusted.
[0039] It can be understood that the housing 100 is formed with a flow port 110 extending from the first surface to the second surface. The plurality of blades 200 are arranged on the first surface or the second surface, and the other surface is used to dock with a hydraulic system or a pneumatic system. In some embodiments, the first surface and the second surface may be opposite surfaces, and at this time, the axis of the flow port 110 is a straight line.
[0040] In some other embodiments, the first surface and the second surface are adjacent surfaces, and at this time, the flow port 110 is arranged as a flow channel with a corner.
[0041] It can be understood that the accurate control of the device is achieved by controlling the pressure of the liquid or the flow rate of the gas through the throttle port 230 surrounded by multiple vanes 200. Each vane 200 can be adjusted by an adjusting member 300 to change the size of the middle aperture. Further, the shape and contour of one end of each vane 200 used to surround the throttle port 230 are controllable. Before manufacturing the vane 200, the structure of the vane 200 is specifically designed so that the passing shape of this throttle orifice plate is in a required shape, such as close to a circle, a regular figure, etc., thereby minimizing the performance loss of throttling.
[0042] In some embodiments, the adjusting member 300 drives each vane 200 to move synchronously, enabling the aperture of the throttle orifice plate to be adjustable. Compared with a ball valve, its advantage is that the throttle aperture is in the middle position and close to a circle.
[0043] Referring to Figures 1 to 4 , for the throttle orifice plate according to the first aspect embodiment of the present application, the adjusting member 300 drives the vane 200 to move, so that the aperture of the throttle port 230 surrounded by multiple vanes 200 can be adjusted, thereby being able to adjust the optimal performance of a centrifugal chiller or other refrigeration equipment at low cost. And based on the design of the vane 200, the passing shape of the throttle orifice plate is controllable, and the performance loss is small.
[0044] In some embodiments of the present application, the adjusting member 300 includes a guide disk 310. The guide disk 310 is rotatably arranged on the housing 100. The guide disk 310 includes a plurality of guiding structures 311. Each guiding structure 311 is used to guide the movement of each vane 200 respectively, so that each vane 200 can move synchronously relatively away from or relatively close to each other, thereby adjusting the aperture of the throttle port 230.
[0045] It can be understood that the guide disk 310 is rotatably arranged on the housing 100. The guiding action of the guiding structure 311 is used to limit the movement mode of each vane 200, and the limiting action of the guiding structure 311 is used to drive each vane 200 to move synchronously, so as to move relatively close to the center position as a reference and reduce the aperture, or move relatively away from the center position as a reference and increase the aperture, thereby meeting the usage requirements.
[0046] In some embodiments, an installation position for accommodating the guide disk 310 is formed on the housing 100, so that the guide disk 310 can be reliably rotatably installed on the housing 100.
[0047] In some embodiments of the present application, the blade 200 includes a first guide pin 210. The guide structure 311 is formed with a first guide groove 3111. The guide disc 310 further includes an outer ring portion 312 and an inner ring portion 313. One end of the guide structure 311 is internally connected to the outer ring portion 312, and the other end of the guide structure 311 is externally connected to the inner ring portion 313. The first guide pin 210 is slidably disposed in the first guide groove 3111, so that the blades 200 can cooperate with each other within the inner ring portion 313 to enclose a throttle orifice 230.
[0048] It can be understood that the first guide pin 210 is disposed on one surface of the blade 200, and the corresponding first guide groove 3111 is disposed on the guide disc 310. The first guide pin 210 of the blade 200 is tangent to the first guide groove 3111 of the guide disc 310. Under this constraint, the rotation of the guide disc 310 can drive the rotation of the blade 200, so as to form an aperture close to a circle at the middle position by using the blade 200.
[0049] In some embodiments, the guide structure 311, the outer ring portion 312, and the inner ring portion 313 are an integral structure and are formed by integral manufacturing. In other embodiments, the guide structure 311, the outer ring portion 312, and the inner ring portion 313 are a split structure and are assembled into the guide disc 310 by separate manufacturing and separate connection.
[0050] In some embodiments of the present application, the guide structures 311 are inclined and arranged at intervals between the outer ring portion 312 and the inner ring portion 313, and the extending direction of the first guide groove 3111 is parallel to the extending direction of the guide structure 311. One end of each guide structure 311 is respectively disposed at the top positions of the inscribed regular polygon of the outer ring portion 312, and the other end of each guide structure 311 is respectively disposed at the top positions of the circumscribed regular polygon of the inner ring portion 313.
[0051] It can be understood that by specifically designing the extending direction of the first guide groove 3111 in the guide structure 311, the movement modes of the blades 200 can be controlled, so that the passing shape of the enclosed throttle orifice 230 is close to a regular shape, thereby meeting the use requirements while reducing performance loss and facilitating testing.
[0052] In some embodiments, six groups of the guide structures 311 and the blades 200 are provided. One end of each guide structure 311 is respectively disposed at the top positions of the inscribed regular hexagon of the outer ring portion 312, and the other end of each guide structure 311 is respectively disposed at the top positions of the circumscribed regular hexagon of the inner ring portion 313, so that the passing shape of the enclosed throttle orifice 230 is close to a circle and the performance loss is small.
[0053] In some other embodiments, the number of sets of the guiding structures 311 and the blades 200 is adaptively adjusted based on the shape of the throttle orifice 230 to be formed, so as to obtain the number of sides of the regular polygon and accordingly determine the top position of the regular polygon, and thus determine the design position of the guiding structure 311.
[0054] In some embodiments of the present application, each blade 200 respectively includes a second guiding pin 220. The first guiding pin 210 and the second guiding pin 220 are respectively located on the opposite two surfaces of the blade 200. A second guiding groove 120 is provided in the housing 100, and the second guiding pins 220 are slidably and spacedly arranged on the second guiding groove 120.
[0055] It can be understood that the second guiding pin 220 is provided on the other surface of the blade 200, and the second guiding groove 120 is provided at the corresponding position on the housing 100. The second guiding pin 220 of the blade 200 is tangent to the second guiding groove 120 of the housing 100. Under this constraint, the blade 200 can rotate to form an aperture close to a circle at the middle position.
[0056] In some embodiments, guiding pins are provided on the blade 200, and guiding grooves are provided on both the guiding disc 310 and the housing 100. The guiding pins of the blade 200 are tangent to the guiding grooves of the guiding disc 310 and the housing 100. Under this constraint, the blade 200 can rotate to form an aperture close to a circle at the middle position.
[0057] In some embodiments of the present application, the adjusting member 300 further includes an operating member 320 and a transmission rod assembly 330. The operating member 320 is connected to the guiding disc 310 through the transmission rod assembly 330, so that the operating member 320 can drive the guiding disc 310 to rotate. It can be understood that when in use, a technician controls the operating member 320 to adjust the size of the middle aperture formed by the blades 200, so as to achieve the purpose of adjusting the size of the orifice plate.
[0058] In some embodiments, the operating member 320 is a handwheel, and the size of the orifice plate is adjusted by controlling the rotation of the handwheel.
[0059] In some embodiments, the transmission rod assembly 330 includes a handwheel connecting rod, an intermediate connecting rod and a control connecting rod. The operating member 320 is a handwheel. By rotating the handwheel, the handwheel connecting rod is driven to move up and down and push the intermediate connecting rod. The intermediate connecting rod is hinged to the control connecting rod, so as to drive the control connecting rod to drive the guiding disc 310 to rotate around the center of the housing 100.
[0060] In some embodiments of the present application, the cross-sectional shape of the throttle orifice 230 is circular. It can be understood that when the shape is close to a circle, the performance loss is the smallest.
[0061] In some embodiments, the cross-sectional shape of the throttle orifice 230 can be designed into other structures such as regular polygons, ellipses, etc. according to actual performance requirements and usage requirements to meet different needs.
[0062] In some embodiments, by rotating the handwheel, the handwheel connecting rod moves up and down, pushing the intermediate connecting rod, and the intermediate connecting rod drives the control connecting rod to realize the rotation of the guide plate 310 around the center of the housing 100. Guide pins are provided on the blades 200, and guide grooves are provided on both the guide plate 310 and the housing 100. The guide pins of the blades 200 are tangent to the guide grooves of the guide plate 310 and the housing 100. Under this constraint, the rotation of the blades 200 can be realized, so as to form an aperture close to a circle at the intermediate position. By controlling the rotation of the handwheel, the size of the intermediate aperture formed by the blades 200 can be realized, so as to achieve the purpose of adjusting the size of the orifice plate.
[0063] It can be understood that when the working condition of the unit changes, the aperture of the orifice plate needs to be confirmed again, and multiple tests and multiple replacements of the orifice plate are required. In the related art, the form of determining the aperture of the orifice plate is to obtain the aperture of a fixed-size orifice plate through rough preliminary calculations, and then continuously correct the aperture of the orifice plate through tests to obtain the optimal solution of the orifice plate. In addition, in the related art, when a ball valve or other throttling devices are used for throttling, only the opening degree of the ball valve needs to be adjusted. However, the throttling orifice of the ball valve or other throttling devices is non-circular, resulting in a certain loss of performance. Using a ball valve or other structures as throttling devices has a relatively high cost, and the passing shape of its throttling device is non-circular, resulting in a certain loss of performance.
[0064] Refer to Figures 1 to 4 In the throttling device according to the second aspect embodiment of the present application, including the throttling orifice plate according to the first aspect embodiment of the present application, it is realized that the aperture of the throttling orifice plate can be adjusted, and compared with the ball valve, its advantage is that the throttling aperture is in the middle position and close to a circle. Therefore, the throttling device with this throttling orifice plate can not only adapt to the working conditions of the unit, but also has a small performance loss in adjusting the aperture.
[0065] Refer to Figures 1 to 4 In the refrigerant circulation system according to the third aspect embodiment of the present application, the refrigerant circulation system can be the refrigerant circulation system of a water chiller or the refrigerant circulation system of an air conditioning device, etc. The refrigerant circulation system includes the throttling device according to the second aspect embodiment of the present application, and also includes a condenser, an evaporator, etc. to form a refrigerant circulation system.
[0066] Refer to Figures 1 to 4, for the refrigeration equipment according to the fourth aspect of the present application, the refrigeration equipment can be a chiller such as a centrifugal chiller, or an air-conditioning equipment, etc. The refrigerant circulation system includes the refrigerant circulation system according to the third aspect of the present application. When the unit conducts a performance verification test, there is no need to replace the orifice plate, and the best performance of the centrifugal chiller can be adjusted at low cost. When the user working condition changes, there is no need to recover the refrigerant and replace the orifice plate, and it can be adjusted according to the user working condition requirements by the present application. Compared with the ball valve throttling adjustment, the throttling aperture of the present application is close to a circle, and the performance loss is small.
[0067] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0068] The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present application within the knowledge scope of those of ordinary skill in the art.
Claims
1. A throttle orifice plate, characterized in that, Comprising: A housing formed with a circulation port; Multiple vanes movably arranged on the housing, and the multiple vanes can cooperate with each other to enclose a throttling port with a preset shape, and the throttling port is used to communicate with the circulation port; An adjusting component for driving each of the vanes to move synchronously so that the caliber of the throttling port is adjustable.
2. The orifice plate according to claim 1, wherein: The adjusting component includes a guide disk rotatably arranged on the housing. The guide disk includes a plurality of guiding structures, and each of the guiding structures is used to guide the movement of each of the vanes respectively, so that each of the vanes can move synchronously relatively away from or relatively close to each other, thereby adjusting the caliber of the throttling port.
3. The orifice plate according to claim 2, characterized in that: The vane includes a first guiding pin, the guiding structure is formed with a first guiding groove, the guide disk further includes an outer ring part and an inner ring part, one end of the guiding structure is internally connected to the outer ring part, the other end of the guiding structure is externally connected to the inner ring part, and the first guiding pin is slidably arranged in the first guiding groove, so that each of the vanes can cooperate with each other within the inner ring part to enclose the throttling port.
4. The orifice plate according to claim 3, wherein: Each of the guiding structures is inclined and arranged at intervals between the outer ring part and the inner ring part, and the extending direction of the first guiding groove is parallel to the extending direction of the guiding structure. One end of each of the guiding structures is respectively arranged at the top positions of the inscribed regular polygon of the outer ring part, and the other end of each of the guiding structures is respectively arranged at the top positions of the circumscribed regular polygon of the inner ring part.
5. The orifice plate according to claim 3, characterized in that: Each of the vanes respectively includes a second guiding pin, the first guiding pin and the second guiding pin are respectively located on the opposite two surfaces of the vane, and a second guiding groove is arranged in the housing, and each of the second guiding pins is slidably arranged at intervals on the second guiding groove.
6. The orifice plate according to claim 2, characterized in that: The adjusting component further includes an operating part and a transmission rod assembly, and the operating part is connected to the guide disk through the transmission rod assembly so that the operating part can drive the guide disk to rotate.
7. The orifice plate according to claim 1, characterized in that: The cross-sectional shape of the throttling port is circular.
8. A device, characterized in that, Comprising: The throttling orifice plate according to any one of claims 1 to 7.
9. A refrigerant circulation system, characterized in that, Comprising: The device according to claim 8.
10. A refrigeration device, characterized in that, Comprising: The refrigerant circulation system according to claim 9.