Anti-freezing method for flow matrix and flow matrix

Abstract

The invention relates to the technical field, and provides a flow matrix anti-freezing method and a flow matrix. A containing cavity is formed in the flow matrix, and an anti-freezing body with a cavity is arranged in the containing cavity; the method comprises the following steps: determining size parameters, and setting the volume of a containing cavity as V1; setting the volume of the inner cavity of the anti-freezing body as V2; substituting into a formula. The anti-freezing body is of a structure only provided with a cavity, and the structure is simple; according to the flow matrix obtained through the formula, even if the anti-freezing body is affected by water pressure, it can be guaranteed that the flow matrix is not cracked under the freezing condition; the size of the anti-freezing body can be effectively controlled, and the occupied space of the anti-freezing body is reduced as much as possible; by means of the formula, the proportional relation between the volume V1 of the containing cavity and the volume V2 of the cavity in the anti-freezing body can be rapidly obtained, and then V1 and V2 can be rapidly determined.

Description

Technical Field

[0001] This application relates to the field of pipeline crack prevention technology, and in particular to a method for antifreeze flow matrix and a flow matrix. Background Technology

[0002] In the field of liquid flow metering, especially in water supply systems, the reliable operation of water pipes, water meters, and related flow sensing equipment in cold environments has always been a key technical challenge. When the ambient temperature is below freezing, residual water in pipes or instruments will freeze. The enormous internal stress generated by the expansion of the ice can easily lead to pipe rupture, water meter glass breakage, or permanent damage to internal precision sensing components (such as impellers, ultrasonic transducers, and electromagnetic coils). This not only wastes water resources and causes property damage but also leads to frequent maintenance and replacement, significantly increasing the operating costs for public utilities and users. In particular, if water meters or water pipe networks in high-rise buildings freeze and crack and are not detected in time, water can flow from the upper floors all the way to the first floor, even the basement, elevator shafts, and electrical rooms after thawing, posing a danger no less than that of a fire.

[0003] Currently, the traditional method of antifreeze is to insulate the flow meter body. However, due to insufficient insulation or partial exposure, it is difficult to achieve complete antifreeze. Another method is to install a pressure relief valve in the flow meter body. The pressure relief valve has a relatively complex structure, and because water pressure also affects the pressure relief valve, it is difficult to determine the size of the pressure relief valve. If it is too large, it will occupy the internal space of the flow meter body, and if it is too small, it will not be able to offset the increase in volume after the water freezes. In some application scenarios, fluid overflow is not allowed, which makes it impossible to use the pressure relief valve. Summary of the Invention

[0004] This application provides a method for antifreeze flow substrate and a flow substrate, which can improve the technical problems in related technologies where the antifreeze body has a complex structure, is too large and occupies too much internal space of the flow substrate, and is too small to offset the increased volume after water freezes. In a first aspect, embodiments of this application provide a method for preventing freezing of a flow substrate, wherein the flow substrate has a cavity inside, and an antifreeze body with a cavity is disposed within the cavity; the steps are as follows: Confirm the dimensional parameters and set the volume of the cavity as V1; set the volume of the internal cavity of the antifreeze body as V2; set the maximum working pressure within the cavity as F; set the lower limit of the maximum withstand pressure of the cavity as F. N ; Substitute into the formula: The calculation shows that: Compared with the prior art, this application has at least the following beneficial effects: The antifreeze body has a simple structure with only a cavity. The flow matrix obtained by substituting the above formula can ensure that the antifreeze body will not crack under freezing conditions, even if it is affected by water pressure. It can also effectively control the volume of the antifreeze body and minimize the space occupied by the antifreeze body. The above formula can quickly determine the ratio between the volume of the cavity V1 and the volume of the cavity inside the antifreeze body V2, and thus quickly determine the size of V1 and V2.

[0005] In some embodiments, the volume V1 of the cavity is the volume exposed to the cold wave.

[0006] In some embodiments, the antifreeze body does not stretch or deform under a set pressure F; and it can rebound and recover after thawing.

[0007] Secondly, embodiments of this application provide a flow matrix prepared by the aforementioned flow matrix antifreeze method.

[0008] In some embodiments, the flow substrate is a water meter, a valve body, or a pipe. In some embodiments, the antifreeze body is disposed at the bottom of the flow base.

[0009] In some embodiments, a water pipe is disposed on the flow base and communicates with the cavity.

[0010] In some embodiments, the antifreeze body is at least partially a convex arc surface.

[0011] In some embodiments, the outer shell of the antifreeze body is made of stainless steel or titanium steel.

[0012] In some embodiments, the outer layer of the antifreeze body is wrapped with a perforated reinforcing member to protect the antifreeze body. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the water meter structure provided in an embodiment of this application; Figure 2 This is a schematic diagram of the valve body structure provided in an embodiment of this application; Figure 3 This is a schematic diagram of the fit between the water pipe and the flow base provided in an embodiment of this application; Figure 4 This is a schematic diagram showing the cooperation between the antifreeze body and the hollowed-out reinforcing member provided in the embodiments of this application; Figure 5 A schematic diagram of the hollowed-out reinforcing member provided in the embodiments of this application; Figure 6 This is a partial cross-sectional view of a water meter provided in an embodiment of this application.

[0015] The following are the labeling elements in the figure: 1. Flow base; 2. Cavity; 3. Antifreeze body; 4. Water pipe; 5. Hollowed-out reinforcing component. Detailed Implementation

[0016] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0019] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In this application, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0022] It should be noted that in this application, the words "in some embodiments," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "in some embodiments," "exemplarily," or "for example" should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of words such as "in some embodiments," "exemplarily," and "for example" is intended to present related concepts in a specific manner, meaning that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of this application. The appearance of the above words in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0023] In a first aspect, embodiments of this application provide a method for preventing freezing of a flow base 1. The flow base 1 has a cavity 2 inside, and certain dimensional parameters are set within the cavity 2. The volume of the cavity 2 is set as V1; the volume of the internal cavity of the antifreeze body 3 is set as V2; the maximum working pressure within the cavity 2 is set as F; and the lower limit of the maximum pressure that the cavity 2 can withstand is set as F. N ; Substitute into the formula: The calculation shows that: .

[0024] For example: Set the maximum working pressure F inside the cavity to 1MPa, and the lower limit of the high bearing pressure F N The pressure is 3.5 MPa. Substituting this into the formula, we get: The calculation shows that: .

[0025] It is understandable that when the antifreeze body 3 is under working pressure F and the lower limit of the pressure it can withstand F... N At that time, the internal cavity volume of the antifreeze body 3 is V2, and after compression deformation, it becomes FV2 / F. NThis allows us to calculate the volume of the antifreeze body. We can first determine the volume V1 of cavity 2, then substitute it into the formula to obtain the internal cavity V2 of the antifreeze body 3. Alternatively, we can first determine the internal cavity volume V2 of the antifreeze body, then substitute it into the formula to obtain the volume V1 of cavity 2. The water in the flow base 1 is pressurized, for example, the normal water pressure is 0.2-0.35 MPa, and some high-rise buildings have even higher water pressures. If an air cavity is provided at normal pressure, its volume will be compressed to only 1 / 2 to 1 / 3.5 under water pressure. This is because the air pressure is atmospheric pressure, approximately 0.1 MPa, and air is highly compressible; for every increase in pressure, its volume decreases proportionally. For example, at 1.0 MPa, the volume is only about 1 / 10 compared to normal pressure. Therefore, to have sufficient cavity to accommodate the increased frozen volume, the designed antifreeze body 3 must still have sufficient cavity even at the highest working water pressure. For example, at 1.0 MPa, its internal cavity should still be maintained at 1 / 10V1. Adding the volume remaining inside the antifreeze body under the highest pressure withstand capability. During freezing, due to the increased internal pressure, at the lower limit of the highest pressure withstand capability of the flow base 1, such as 3.5 MPa, the antifreeze body 3 must shrink its volume by at least 1 / 10V1 to completely absorb the increased volume and protect all of the flow base 1. Assuming the internal cavity volume of the antifreeze body 3 is V2 at 1.0 MPa, then at 3.5 MPa, the volume is approximately 1 / 3.5V2. Therefore, the dimensions of the antifreeze body 3 are designed as shown in the formula above. Here, the flow base 1 is simply a component with an internal cavity 2. For example, it can be a water meter, valve body, pipe, tank, or any structure that can hold or flow water, but is not limited to these. Here, we can first determine the volume V1 of the cavity 2 and then substitute it into the formula to obtain the internal cavity volume V2 of the antifreeze body 3. Alternatively, we can first determine the internal cavity volume V2 of the antifreeze body 3 and then substitute it into the formula to obtain the volume V1 of the cavity 2.

[0026] With this configuration, the antifreeze body 3 is a simple structure with only a cavity. By substituting the above formula into the flow base 1, the antifreeze body 3 can ensure that it will not crack under freezing conditions even when affected by water pressure. It can also effectively control the volume of the antifreeze body 3 and minimize the space occupied by the antifreeze body 3. Through the above formula, the ratio between the volume V1 of the cavity 2 and the volume V2 of the internal cavity of the antifreeze body 3 can be quickly obtained, and the sizes of V1 and V2 can be quickly determined.

[0027] Optionally, in some embodiments, the volume V1 of cavity 2 is the volume exposed to the cold wave.

[0028] Understandably, since there is an insulated part in the flow base 1 with a certain length, and the entire part is not frozen, not the entire flow base 1 needs to be calculated for water volume. For example, if the water meter or valve is exposed to the cold wave, but the two sides are underground or inside a wall with a certain degree of insulation, then the entire exposed cavity 2 in the cold wave is the water volume we need to protect, which we define as V1.

[0029] This setting makes the positioning of V1 more accurate and reasonable.

[0030] Optionally, in some embodiments, the antifreeze body 3 does not stretch or deform under a set pressure F (e.g., 1.0 MPa, 1.6 MPa); and it can rebound and recover after thawing. Here, the antifreeze body 3 needs to have a certain pressure resistance, that is, it must be ensured that the volume of the antifreeze body 3 does not change too much under 0-1.0 MPa, otherwise, large changes will lead to problems such as inability to install or insufficient space. Therefore, a material with resistance to internal pressure that has a very small deformation under the highest water pressure of the flow base 1 can be selected. If this material is used in tap water, it must be corrosion-resistant and meet the drinking water hygiene requirements, such as stainless steel, titanium steel, etc., but not limited to these.

[0031] Secondly, refer to Figure 1-3 This application provides a flow matrix 1, which is prepared by a method for preventing the flow matrix 1 from freezing.

[0032] Since the flow substrate 1 provided in this application embodiment is prepared by the above-mentioned flow substrate 1 antifreeze method, it also has the technical effects brought about by the technical solution of the flow substrate 1 antifreeze method of any of the above embodiments, which will not be repeated here.

[0033] Optionally, in some embodiments, the flow base 1 is a water meter, valve body, or pipe body. Further, the antifreeze body 3 is disposed at the bottom of the flow base 1. Of course, referring to... Figure 6 It can also be set at the outer ring of the flow substrate, etc.

[0034] Understandably, the mechanism and switch structure are usually installed in the middle of the upper part of the water meter casing and valve body. The bottom of the flow base 1 refers to the end away from where the mechanism and switch are installed. This is how products such as water meters and valve bodies are installed in this embodiment.

[0035] This design avoids the entry point into the movement mechanism and the switch, resulting in a more rational structure.

[0036] Optionally, in some embodiments, the water pipe is disposed on the flow base and communicates with the cavity.

[0037] It is understandable that the cavity 2 in this embodiment is not limited to the cavity 2 part inside the flow base 1. If the water pipe 4 part is also exposed to the cold wave, the volume of the cavity 2V1 needs to be added to the volume of the water pipe 4 exposed to the cold wave.

[0038] This setup allows for separate antifreeze protection of water pipe 4, preventing it from cracking after freezing.

[0039] Optionally, in some embodiments, the antifreeze body 3 is at least partially a convex arcuate surface.

[0040] Understandably, at least part of the surface is a convex arc, such as a spherical shape, an ellipsoidal shape, or a surface with one side being a plane and the other side being a sphere, but not limited to these.

[0041] With this design, the antifreeze body 3, with its raised, arc-shaped surface, experiences relatively even stress, making it less prone to localized cracking. Furthermore, it exhibits good resilience, facilitating thawing and restoration to its original shape.

[0042] Optionally, in some embodiments, reference is made to Figure 4-5 The outer layer of the antifreeze body 3 is wrapped with a hollow reinforcing member 5 to protect the antifreeze body 3.

[0043] Understandably, the perforated reinforcing member 5 is a supporting component, such as a supporting mesh structure or a supporting fence structure, but not limited to these. The perforated reinforcing member 5 can be made of food-grade polypropylene, polyethylene, or other plastic materials, or it can be made of corrosion-resistant metal materials such as stainless steel or titanium steel.

[0044] With this design, the hollowed-out reinforcing member 5 serves to share the pressure of the pipe network and protect the antifreeze body 3 when there is no freezing.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for preventing freezing of a flow matrix, characterized in that, The flow matrix has an internal cavity, and an antifreeze body with a cavity is disposed within the cavity; the steps are as follows: Confirm the dimensional parameters and set the volume of the cavity as V1; set the volume of the internal cavity of the antifreeze body as V2; set the maximum working pressure inside the cavity as F; set the minimum maximum pressure the cavity can withstand as F. N ; Substitute into the formula: The calculation shows that: 。 2. The method for preventing freezing of a flow matrix according to claim 1, characterized in that, The volume V1 of the cavity is the volume exposed to the cold wave.

3. The method for preventing freezing of a flow matrix according to claim 1, characterized in that, The antifreeze body does not stretch or deform under a set pressure F; and it can rebound and recover after thawing.

4. A flow matrix, characterized in that, The flow matrix is ​​prepared according to any one of claims 1-3.

5. A flow matrix according to claim 4, characterized in that, The flow meter body is a water meter, valve body, or pipe body.

6. A flow matrix according to claim 5, characterized in that, The antifreeze body is located at the bottom of the flow base.

7. A flow matrix according to claim 4, characterized in that, A water pipe is installed on the flow base and connected to the cavity.

8. A flow matrix according to claim 4, characterized in that, The antifreeze body is at least partially a raised arc surface.

9. A flow matrix according to claim 4, characterized in that, The outer shell of the antifreeze body is made of stainless steel or titanium steel.

10. A flow matrix according to claim 4, characterized in that, The outer layer of the antifreeze is wrapped with a hollowed-out reinforcing member to protect the antifreeze.

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