Steam conveying pipe network structure
By installing an inner reflective layer, a heat insulation layer, and an outer reflective layer inside the steam pipeline, combined with high-pressure steam pipelines and supporting structures, the problems of unstable temperature and external wall corrosion in steam heating pipelines have been solved, achieving temperature stability and improved corrosion resistance.
Patent Information
- Application Number
- CN202520328662.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-27
AI Technical Summary
In the steam heating pipelines of industrial areas, there are problems such as unstable temperature at the far end of the heating pipeline, excessive heat on the outer wall, and easy corrosion.
The system employs an inner reflective layer, a heat insulation layer, and an outer reflective layer structure within the low-pressure steam pipeline. Combined with the high-pressure steam pipeline and supporting structure, and through the design of inclined holes and liquid collection tanks, a self-draining system is formed to stabilize the steam temperature and reduce the heat on the outer wall.
It effectively reduces heat loss from external radiation in the pipeline, stabilizes steam temperature, improves the corrosion resistance of the pipeline wall, and ensures heating performance.
Smart Images
Figure CN223754860U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of heat energy supporting equipment, in particular to a steam delivery pipe network structure. BACKGROUND
[0002] In some industrial areas with steam heating needs, a dedicated enterprise needs to be established to supply steam to the industrial area, and corresponding steam heating pipelines need to be laid in the industrial area. In order to better meet the development needs of the industrial area and facilitate the later improvement and maintenance of the heating pipeline, an overhead pipeline is generally used to complete the laying of the pipeline. However, in actual application, the following problems still exist: (1) the temperature at the distal end of the heating pipeline is unstable and fluctuates frequently; (2) the heat of the outer wall of the pipeline is too high, which can easily cause injury to personnel; and (3) the pipeline is exposed and is easily eroded. CONTENT OF THE UTILITY MODEL
[0003] In view of the deficiencies of the prior art, the present application provides a steam delivery pipe network structure which can effectively reduce heat loss caused by external radiation of the pipeline, better stabilize the temperature of steam in the pipeline, and thus ensure the heating effect on the distal end enterprise of the pipeline, while also reducing the heat of the outer wall of the pipeline and improving the corrosion resistance of the outer wall of the pipeline.
[0004] A steam delivery pipe network structure comprises a low-pressure steam pipeline, a high-pressure steam pipeline arranged in the low-pressure steam pipeline and coaxial with the low-pressure steam pipeline, and a self-draining structure connected to the low-pressure steam pipeline.
[0005] Further, the low-pressure steam pipeline is composed of a low-pressure steam pipe, an inner reflective layer wrapped outside the low-pressure steam pipe, a heat insulation layer wrapped outside the inner reflective layer, an outer reflective layer wrapped outside the heat insulation layer, and an arc-shaped liquid collecting groove pipe arranged outside the low-pressure steam pipe; the liquid collecting groove pipe is arranged between the low-pressure steam pipe and the inner reflective layer.
[0006] As a preferred option, the liquid collecting groove pipe is arranged at the lower end of the low-pressure steam pipe, and the two side ends of the liquid collecting groove pipe are integrally formed with the outer side surface of the low-pressure steam pipe.
[0007] As a preferred option, the lower end of the low-pressure steam pipe is provided with at least one inclined hole which penetrates the low-pressure steam pipe and connects the internal space of the low-pressure steam pipe with the internal space of the liquid collecting groove pipe.
[0008] As a preferred option, the central axis of the inclined hole is located in the same vertical plane as the central axis of the low-pressure steam pipe, and the included angle between the central axis extension line of the inclined hole and the central axis of the low-pressure steam pipe is 30-35°.
[0009] As a preferred option, the outer side of the outer reflective layer is further wrapped with a tin paper pipe layer.
[0010] Further, the high-pressure steam pipeline is composed of a high-pressure steam pipe coaxially arranged with the low-pressure steam pipe, a plurality of groups of support structures arranged in groups, and a screw thread arranged on the inner side wall of the high-pressure steam pipe.
[0011] As a preferred, each group of the support structures is composed of at least three support rods uniformly arranged around the high-pressure steam pipe; the support rods are arranged along the radial direction of the high-pressure steam pipe, one end of the support rods is fixed to the outer side wall of the high-pressure steam pipe, and the other end is fixed to the inner side wall of the low-pressure steam pipe.
[0012] Further, the self-draining structure is composed of a drain pipe penetrating the tin paper pipe layer, the outer reflective layer, the heat insulation layer, the inner reflective layer and the liquid collecting groove pipe from outside to inside in sequence, and a drain valve with a water inlet communicating with the drain pipe and a water outlet connected with an external drain pipe.
[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:
[0014] The utility model discloses can effectively reduce the heat loss caused by the radiation of pipeline to outside, can better stabilize the temperature of steam in the pipeline, and further guarantees the heating effect of the enterprise at the distal end of the pipeline, simultaneously, the heat of the outer wall of the pipeline is reduced, and the corrosion resistance of the outer wall of the pipeline is improved.
[0015] Some of the additional features of the present application can be described in the following description. Some of the additional features of the present application will be apparent from the following description and the corresponding drawings, or can be learned by practice of the embodiments of the present application. The features disclosed by the present application can be realized and achieved by the practice or use of various methods, means and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute a limitation on the present application. In the drawings, the same reference numerals represent the same components. Among them,
[0017] Figure 1 It is a transverse sectional view of the utility model.
[0018] Figure 2 It is a sectional structure schematic view of the utility model.
[0019] Explanation of reference numerals:
[0020] 1, low-pressure steam pipe; 2, inner reflective layer; 3, heat insulation layer; 4, outer reflective layer; 5, tin paper pipe layer; 6, support rod; 7, high-pressure steam pipe; 8, screw thread; 9, liquid collecting groove pipe; 10, drain pipe; 11, drain valve; 12, inclined hole. DETAILED DESCRIPTION
[0021] In order to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.
[0022] It should be noted that if the terms "first", "second", and the like are involved in the specification and claims of the present application and the above-mentioned drawings, they are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein. In addition, if the terms "include" and "have" and any variations thereof are involved, it is intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0023] In the present application, if the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are involved, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0024] Also, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.
[0025] In addition, in the present application, the terms "mounting", "setting", "provided with", "connecting", "connected", "sleeved" and the like should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.
[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0027] Embodiment 1
[0028] As shown in Figure 1 , 2 , a steam delivery pipe network structure comprises a low-pressure steam pipe, a high-pressure steam pipe arranged in the low-pressure steam pipe and coaxial with the low-pressure steam pipe, and a self-draining structure communicating with the low-pressure steam pipe.
[0029] The low-pressure steam pipe is composed of a low-pressure steam pipe 1, an inner reflective layer 2 wrapped outside the low-pressure steam pipe 1, a heat insulation layer 3 wrapped outside the inner reflective layer 2, an outer reflective layer 4 wrapped outside the heat insulation layer 3, and an arc-shaped liquid collecting groove pipe 9 arranged outside the low-pressure steam pipe 1; the liquid collecting groove pipe 9 is arranged between the low-pressure steam pipe 1 and the inner reflective layer 2.
[0030] The inner reflective layer is an aluminum pipe structure with smooth inner surface; the material of the heat insulation layer can be ceramic fiber, glass wool or aluminum silicate needle-punched blanket; the outer reflective layer is an aluminum pipe structure with smooth inner and outer surfaces.
[0031] The liquid collecting groove pipe 9 is arranged at the lower end of the low-pressure steam pipe 1, and the two side ends of the liquid collecting groove pipe 9 are integrally connected to the outer side surface of the low-pressure steam pipe 1.
[0032] The liquid collecting groove pipe can effectively guide and collect the condensed water from the low-pressure steam pipe and finally discharge the water out of the pipe.
[0033] The lower end of the low-pressure steam pipe 1 is provided with at least one inclined hole 12, which penetrates the low-pressure steam pipe 1 and connects the inner space of the low-pressure steam pipe 1 with the inner space of the liquid collecting groove pipe 9.
[0034] The central axis of the inclined hole 12 is located in the same vertical plane as the central axis of the low-pressure steam pipe 1, and the included angle between the central axis extension line of the inclined hole 12 and the central axis of the low-pressure steam pipe 1 is 30°.
[0035] Due to the arrangement of the inclined hole, when the low-pressure steam moves at high speed along the low-pressure steam pipe, the steam or air in the liquid collecting groove pipe can be guided out through the inclined hole, so that the air pressure in the liquid collecting groove pipe is lower than that in the low-pressure steam pipe, thereby forming an air pressure difference between the liquid collecting groove pipe and the low-pressure steam pipe. Under the action of the air pressure difference, the condensed water is more easily guided into the liquid collecting groove pipe from the low-pressure steam pipe, effectively improving the collection effect of the condensed water and better reducing the amount of condensed water in the low-pressure steam pipe, thereby ensuring the smoothness of the flow of water vapor in the low-pressure steam pipe.
[0036] The outer side of the outer reflecting layer 4 is also wrapped with a tin paper tube layer 5.
[0037] The tin paper tube layer has good stability, can effectively avoid the erosion of the outside to the pipeline, and the price of the tin paper tube layer is cheap and convenient to replace. When the tin paper tube layer is damaged, the damaged part can be conveniently repaired or replaced.
[0038] The high-pressure steam pipeline is composed of a high-pressure steam pipe 7 coaxially arranged with the low-pressure steam pipe 1, a plurality of groups of support structures arranged in groups, and a screw rib 8 arranged in a spiral shape on the inner side wall of the high-pressure steam pipe 7.
[0039] The screw rib functions to guide the internal high-pressure steam to rotate while advancing, which can not only balance the temperature of the high-pressure steam itself, but also can throw the liquefied water outward on the inner wall of the high-pressure steam pipe through centrifugal force.
[0040] Each group of support structures is composed of at least three support rods 6 uniformly arranged around the high-pressure steam pipe 7; the support rods 6 are arranged along the radial direction of the high-pressure steam pipe 7, one end of the support rod 6 is fixed to the outer side wall of the high-pressure steam pipe 7, and the other end is fixed to the inner side wall of the low-pressure steam pipe 1.
[0041] The self-draining structure is composed of a drain pipe 10 sequentially penetrating the tin paper tube layer 5, the outer reflecting layer 4, the heat insulation layer 3, the inner reflecting layer 2, and the liquid collecting groove pipe 9 from the outside to the inside, and a drain valve 11 connected in communication with the water inlet and the drain pipe 10, and the water outlet is connected with an external drain pipe.
[0042] When arranged, in order to avoid water accumulation in the liquid collecting groove pipe, the liquid collecting groove pipe between two adjacent drain pipes is divided into two sections, and the two sections of the liquid collecting groove are respectively arranged obliquely to the two drain pipes, and the angle of inclination is at least 1°.
[0043] When used, 8-12 MPa high-pressure steam is introduced into the high-pressure steam pipe, and 0.5-2 MPa low-pressure steam is introduced into the low-pressure steam pipe. Since the temperature and flow rate of the high-pressure steam are greater than those of the low-pressure steam, the high-pressure steam can travel faster to the distal end of the pipeline, and the temperature of the high-pressure steam can be radiated outward through the high-pressure steam pipe, effectively supplementing the lost heat of the low-pressure steam when the low-pressure steam travels along the low-pressure steam pipe. Therefore, it is effectively ensured that the low-pressure steam also has stable heat at the distal end of the pipeline.
[0044] Example 2
[0045] The difference between this embodiment and example 1 is that the included angle between the central axis extension line of the inclined hole 12 and the central axis of the low-pressure steam pipe 1 is 35°.
[0046] Example 3
[0047] The difference between this embodiment and embodiment 1 is that the angle between the center axis extension line of the inclined hole 12 and the center axis of the low-pressure steam pipe 1 is 33°.
[0048] It should be noted that all the features disclosed in the present specification, or the steps in all the methods or processes disclosed, can be combined in any manner, except for the features and / or steps that are mutually exclusive.
[0049] In addition, the above specific embodiments are exemplary, and those skilled in the art can think of various solutions under the inspiration of the disclosure of the present application, and these solutions also belong to the disclosed range of the present application and fall within the protection scope of the present application. Those skilled in the art should understand that the present application specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of the present application is defined by the claims and their equivalents.
Claims
1. A steam delivery plumbing configuration, characterized by, The low-pressure steam pipeline, the high-pressure steam pipeline arranged in the low-pressure steam pipeline and coaxial with the low-pressure steam pipeline, and the self-draining structure connected with the low-pressure steam pipeline.
2. A steam delivery plumbing configuration according to claim 1, wherein, The low-pressure steam pipeline is composed of a low-pressure steam pipe (1), an inner reflective layer (2) wrapped outside the low-pressure steam pipe (1), a heat insulation layer (3) wrapped outside the inner reflective layer (2), an outer reflective layer (4) wrapped outside the heat insulation layer (3), and an arc-shaped liquid collecting groove pipe (9) arranged outside the low-pressure steam pipe (1); the liquid collecting groove pipe (9) is arranged between the low-pressure steam pipe (1) and the inner reflective layer (2).
3. A steam delivery tube network structure according to claim 2, wherein The liquid collecting groove pipe (9) is arranged at the lower end of the low-pressure steam pipe (1), and the two side ends of the liquid collecting groove pipe (9) are integrally formed with the outer side of the low-pressure steam pipe (1).
4. A steam delivery tube network structure according to claim 3, wherein The lower end of the low-pressure steam pipe (1) is provided with at least one row of inclined holes (12) penetrating the low-pressure steam pipe (1) and connecting the internal space of the low-pressure steam pipe (1) with the internal space of the liquid collecting groove pipe (9).
5. A steam delivery tube network structure according to claim 4, wherein The central axis of the inclined hole (12) and the central axis of the low-pressure steam pipe (1) are located in the same vertical plane, and the included angle between the central axis extension line of the inclined hole (12) and the central axis of the low-pressure steam pipe (1) is 30-35°.
6. A steam delivery tube network structure according to claim 5, wherein The outer side of the outer reflective layer (4) is further wrapped with a tin paper tube layer (5).
7. A steam delivery tube network structure according to claim 2, wherein The high-pressure steam pipeline is composed of a high-pressure steam pipe (7) arranged coaxially with the low-pressure steam pipe (1), a plurality of groups of support structures arranged in groups, and a plurality of screw ribs (8) arranged in a spiral shape on the inner side wall of the high-pressure steam pipe (7).
8. A steam delivery plumbing configuration according to claim 7, wherein, Each group of support structures is composed of at least three support rods (6) uniformly arranged around the high-pressure steam pipe (7); the support rods (6) are arranged along the radial direction of the high-pressure steam pipe (7), one end of the support rods (6) is fixed to the outer side wall of the high-pressure steam pipe (7), and the other end is fixed to the inner side wall of the low-pressure steam pipe (1).
9. A steam delivery plumbing configuration according to claim 6, wherein, The self-draining structure is composed of a drain pipe (10) penetrating the tin paper tube layer (5), the outer reflective layer (4), the heat insulation layer (3), the inner reflective layer (2) and the liquid collecting groove pipe (9) from outside to inside, a water inlet connected with the drain pipe (10), a water outlet connected with an external drain pipe, and a drain valve (11). The low-pressure steam pipeline, the high-pressure steam pipeline arranged in the low-pressure steam pipeline and coaxial with the low-pressure steam pipeline, and the self-draining structure connected with the low-pressure steam pipeline.