Water tank type heat supply pipeline and system
By adopting a three-layer concentric circular structure in the heating pipe, the phase change material is directly in contact with the steam supply/discharge pipe and the steam inlet/water inlet pipe, which solves the problem of slow heat absorption of phase change material and improves steam conveying efficiency and equipment safety.
Patent Information
- Application Number
- CN202421761892.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-24
AI Technical Summary
In the prior art, the phase change material does not come into contact with the tank wall during steam transport, resulting in slow heat absorption, affecting steam quality and equipment safety.
The steam supply/draining pipe, steam inlet/water inlet pipe and phase change material pipe layer is used to form a three-layer concentric circular structure. The phase change material pipe layer is directly in contact with the steam supply/draining pipe and the steam inlet/water inlet pipe, and wraps the steam inlet/water inlet pipe to quickly absorb heat.
It improves steam transport efficiency, reduces the space occupied by phase change materials outside the tank body, and maintains the stability of steam quality.
Smart Images
Figure CN223063926U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of heat supply, and more specifically, to a water tank type heat supply pipeline and system. Background Art
[0002] With the continuous increase in the demand for thermal production, it is particularly important to ensure the normal operation of thermal equipment. Poor steam can damage thermal equipment and endanger the safety of users. To provide good steam quality to users, purer and more steam is needed. The technology of using steam for heat supply is to first fill a certain mass of demineralized water into a heat storage tank, and then fill high-temperature and high-pressure steam to heat and pressurize the water into high-temperature saturated water. The heat is stored through the saturated water. When reaching the user side, due to the lower pressure on the user side, high-temperature and high-pressure steam is released through the pressure difference between the user side and the tank to meet the gas consumption needs of users.
[0003] Currently, phase change materials are designed on the outer wall of the top of the tank to keep the conveying pipeline warm, so as to maintain the steam quality during steam transportation. However, when the phase change materials are in the solid state, they cannot be in full contact with the tank wall, there are cavities, the heat absorption is slow, and the tank is under pressure and has a certain thickness, and the time for the internal temperature to conduct to the outer wall is relatively long, so the effect of the phase change materials on heat absorption is slow. Utility Model Content
[0004] In view of the above problems, this application provides a water tank type heat supply pipeline and system to improve the heat absorption speed of phase change materials.
[0005] To achieve the above object, the following specific solutions are proposed:
[0006] A water tank type heat supply pipeline includes a steam supply / discharge pipe, a steam inlet / water inlet pipe, and a phase change material pipe layer;
[0007] The phase change material pipe layer includes phase change materials;
[0008] The steam supply / discharge pipe, the phase change material pipe layer, and the steam inlet / water inlet pipe are combined into a three-layer concentric circle structure. The steam supply / discharge pipe wraps the phase change material pipe layer, and the phase change material pipe layer wraps the steam inlet / water inlet pipe.
[0009] Preferably, the length of the steam supply / discharge pipe is the same as the length of the phase change material pipe layer, and the length of the steam inlet / water inlet pipe is greater than the length of the steam supply / discharge pipe.
[0010] Preferably, both ends of the phase change material pipe layer are sealed.
[0011] A water tank type heat supply system includes the water tank type heat supply pipeline as described above and a heat storage tank;
[0012] The first end of the water tank type heat supply pipeline is located inside the heat storage tank, and the second end of the water tank type heat supply pipeline is located at a preset distance in front of the pipeline interface outside the heat storage tank.
[0013] Preferably, the length of the phase change material pipe layer of the water tank type heat supply pipeline is the same as that of the steam supply / discharge pipe of the water tank type heat supply pipeline, and the length of the steam inlet / water inlet pipe of the water tank type heat supply pipeline is greater than that of the steam supply / discharge pipe;
[0014] One end of the phase change material pipe layer, one end of the steam supply / discharge pipe, and one end of the steam inlet / water inlet pipe are all aligned at the second end. The other end of the phase change material pipe layer is aligned with the other end of the steam supply / discharge pipe, and both extend inside the heat storage tank without reaching the first end. The other end of the steam inlet / water inlet pipe extends inside the heat storage tank to reach the first end.
[0015] Preferably, both ends of the phase change material pipe layer are sealed.
[0016] Preferably, the heat storage tank includes a steam inlet branch pipe;
[0017] One end of the steam inlet / water inlet pipe inside the heat storage tank is connected to the steam inlet branch pipe.
[0018] Preferably, the phase change material pipe layer and the steam supply / discharge pipe extend linearly inside the heat storage tank without bending;
[0019] The steam inlet / water inlet pipe extends linearly inside the heat storage tank and then bends towards the steam inlet branch pipe to be connected to the steam inlet branch pipe.
[0020] Preferably, a plurality of air distribution pipes are connected to the steam inlet branch pipe.
[0021] Preferably, the heat storage tank is provided with a sensor interface, and a gate valve and a regulating valve are connected at the sensor interface.
[0022] By means of the above technical solution, the steam supply / discharge pipe, the steam inlet / water inlet pipe and the phase change material pipe layer of the water tank type heat supply pipeline of the present application are combined into a three-layer concentric circle structure. The steam supply / discharge pipe wraps the phase change material pipe layer, and the phase change material pipe layer wraps the steam inlet / water inlet pipe. It can be seen that in this casing design, the phase change material pipe layer is in direct contact with the steam supply / discharge pipe and the steam inlet / water inlet pipe. When filling the desalted water through the steam inlet / water inlet pipe, the phase change material can fully absorb the heat of the wall of the steam inlet / water inlet pipe. Compared with the phase change material attached to the wall of the tank body to absorb the heat of the desalted water heated in the tank body, the speed of directly absorbing the heat of the wall of the steam inlet / water inlet pipe is faster, thereby improving the efficiency of steam transmission.
[0023] Furthermore, since the phase change material only wraps the pipeline, the occupied space of the phase change material area arranged outside the tank can be saved. Brief Description of the Drawings
[0024] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:
[0025] Figure 1 is a schematic cross-sectional view of a water tank type heating pipeline provided by an embodiment of the present application;
[0026] Figure 2 is a schematic side cross-sectional view of a water tank type heating system provided by an embodiment of the present application;
[0027] Figure 3 is a schematic front cross-sectional view of a water tank type heating system provided by an embodiment of the present application. Detailed Embodiments
[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with 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. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.
[0029] An embodiment of the present application provides a water tank type heating pipeline, as Figure 1 shown, the water tank type heating pipeline may include: a steam supply / discharge pipe, a steam inlet / water inlet pipe, and a phase change material pipe layer.
[0030] Among them, the phase change material pipe layer includes a phase change material. The steam supply / discharge pipe, the phase change material pipe layer, and the steam inlet / water inlet pipe are combined into a three-layer concentric circle structure. The steam supply / discharge pipe wraps the phase change material pipe layer, and the phase change material pipe layer wraps the steam inlet / water inlet pipe.
[0031] It can be understood that the steam inlet / water inlet pipe is used to fill high-temperature and high-pressure steam into the tank. During this process, the phase change material pipe layer wrapping the steam inlet / water inlet pipe can absorb heat from the pipe wall of the steam inlet / water inlet pipe sufficiently, and quickly absorb heat from the solid state to the liquid state within a short time, so that the phase change material of the phase change material pipe layer quickly reaches a state that can keep the steam supply / discharge pipe warm. When it is necessary to output steam through the steam supply / discharge pipe, the phase change material pipe layer wrapped by the steam supply / discharge pipe insulates and heats the steam in the steam supply / discharge pipe in a heat conduction manner to maintain the quality of the output steam.
[0032] Considering that high-temperature and high-pressure steam needs to fully heat the demineralized water in the tank, the steam inlet / water inlet pipe should be connected to the relevant structures in the tank (such as the steam inlet branch pipe), while the steam supply / discharge pipe is used to transport steam, and the port of the steam supply / discharge pipe should be in the upper position in the vertical direction in the tank. The main function of the phase change material pipe layer is to insulate and heat the transported steam. Therefore, the steam supply / discharge pipe should completely fit and wrap the phase change material pipe layer. Based on this, the relative relationship between the lengths of each pipe is as follows:
[0033] The length of the steam supply / discharge pipe is the same as that of the phase change material pipe layer, and the length of the steam inlet / water inlet pipe is greater than that of the steam supply / discharge pipe.
[0034] Considering that the state of the phase change material switches between solid and liquid, the phase change material pipe layer needs to be sealed, specifically, it can be sealed at both ends of the phase change material pipe layer.
[0035] In the water tank type heat supply pipeline provided in this embodiment, the steam supply / discharge pipe, the steam inlet / water inlet pipe and the phase change material pipe layer are combined into a three-layer concentric circle structure. The steam supply / discharge pipe wraps the phase change material pipe layer, and the phase change material pipe layer wraps the steam inlet / water inlet pipe. It can be seen that in this sleeve design, the phase change material pipe layer is in direct contact with the steam supply / discharge pipe and the steam inlet / water inlet pipe. When filling demineralized water into the tank using the steam inlet / water inlet pipe, the phase change material can fully absorb the heat of the steam inlet / water inlet pipe wall. Compared with the phase change material attached to the tank wall to absorb the heat of the demineralized water in the tank after being heated, the speed of directly absorbing the heat of the steam inlet / water inlet pipe wall is faster, thereby improving the efficiency of steam transportation. Further, since the phase change material only wraps the pipeline, it can save the occupied space of the phase change material area arranged outside the tank.
[0036] The embodiment of the present application provides a water tank type heat supply system, as Figure 2 and Figure 3 shown. The water tank type heat supply system may include: a water tank type heat supply pipeline and a heat storage tank.
[0037] Among them, as Figure 2 shown, the first end of the water tank type heat supply pipeline is located inside the heat storage tank, and the second end of the water tank type heat supply pipeline is located at a preset distance in front of the pipeline interface outside the heat storage tank.
[0038] Specifically, since the steam inlet / water inlet pipe and the steam supply / discharge pipe are nested into one pipe, only one joint is required outside the heat storage tank, and the operator can perform the operations corresponding to the functions of the steam inlet / water inlet pipe or the operations corresponding to the functions of the steam supply / discharge pipe, improving the operation convenience.
[0039] It is understandable that the steam inlet / water inlet pipe and the steam supply / steam exhaust pipe are nested into one pipe, which can directly enter the water storage tank through one opening. The steam inlet / water inlet pipe and the steam supply / steam exhaust pipe are concentric sleeves, which can save the layout space of the water tank type heating system and reduce the number of valves arranged in the water tank type heating system. Figure 2 As shown, the heat storage tank may be provided with a sensor interface, and a gate valve and a regulating valve are connected to the sensor interface.
[0040] Specifically, the sensor interface may be connected to the regulating valve via a gate valve.
[0041] Furthermore, since the length of the steam / water inlet pipe is longer than that of the phase change material pipe layer and the steam supply / release pipe, one end of the three is aligned outside the heat storage tank, and only the steam / water inlet pipe extends longer inside the heat storage tank.
[0042] Specifically, one end of the phase change material tube layer, one end of the steam supply / steam exhaust pipe, and one end of the steam inlet / water inlet pipe are all aligned at the second end. The other end of the phase change material tube layer is aligned with the other end of the steam supply / steam exhaust pipe, and both extend in the heat storage tank but not to the first end. The other end of the steam inlet / water inlet pipe extends in the heat storage tank to the first end.
[0043] Further, such as Figure 2 As shown, the heat storage tank includes a steam inlet branch pipe, and the steam inlet branch pipe is connected to a plurality of gas distribution pipes for uniformly conveying high-temperature and high-pressure steam for heating the desalted water in the heat storage tank.
[0044] Based on this, one end of the steam / water inlet pipe in the heat storage tank can be connected to the steam inlet branch pipe, and one end of the phase change material tube layer in the heat storage tank and one end of the steam supply / steam release pipe in the heat storage tank are not connected to the steam inlet branch pipe.
[0045] Furthermore, the structure of the water tank type heating pipeline in the heat storage tank is as follows Figure 3 As shown, the phase change material tube layer and the steam supply / release pipe extend straightly in the heat storage tank without bending, and the steam inlet / water inlet pipe extends straightly in the heat storage tank and then bends toward the steam inlet branch pipe to connect with the steam inlet branch pipe.
[0046] It is understandable that the steam inlet / water inlet pipe can quickly heat the phase change material to preheat the steam supply / steam discharge pipe when steam is charged, and when steam is used, the phase change material transfers heat to the steam in the steam supply / steam discharge pipe. The different extension lengths of the two pipes in the tank body do not affect their respective functions.
[0047] Next, the process of steam delivery in a water tank heating system is introduced.
[0048] S1. Fill the heat storage tank with sufficient amount of desalted water at room temperature.
[0049] S2. High-temperature and high-pressure steam is transported through the steam inlet / water inlet pipe, so as to transmit the high-temperature and high-pressure steam to the steam inlet branch pipe, and then the high-temperature and high-pressure steam is output from each air distribution pipe on the steam inlet branch pipe to heat the normal-temperature demineralized water in the heat storage tank body.
[0050] Specifically, during the process of transporting high-temperature and high-pressure steam through the steam inlet / water inlet pipe, since the steam inlet / water inlet pipe is wrapped with a phase change material pipe layer, the phase change material pipe layer can be quickly heated.
[0051] Meanwhile, since part of the pipe body of the water tank type heat supply pipeline is inside the heat storage tank body, while heating the normal-temperature demineralized water, the phase change material in the phase change material pipe layer of the water tank type heat supply pipeline can also absorb heat.
[0052] S3. When it is necessary to transport steam to the user side, steam is transported to the user side through the steam supply / discharge pipe.
[0053] It can be understood that since the phase change material pipe layer is pre-heated, and the phase change material pipe layer can insulate and heat the steam supply / discharge pipe through heat conduction to maintain the quality of the transported steam.
[0054] Finally, it should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0055] The various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referred to each other.
[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A water tank type heating pipeline, characterized in that, It includes a steam supply / discharge pipe, a steam inlet / water inlet pipe, and a phase change material pipe layer; The phase change material pipe layer includes a phase change material; The steam supply / discharge pipe, the phase change material pipe layer, and the steam inlet / water inlet pipe are combined into a three-layer concentric circle structure. The steam supply / discharge pipe wraps the phase change material pipe layer, and the phase change material pipe layer wraps the steam inlet / water inlet pipe.
2. The water tank type heating pipeline according to claim 1, characterized in that, The length of the steam supply / discharge pipe is the same as that of the phase change material pipe layer, and the length of the steam inlet / water inlet pipe is greater than that of the steam supply / discharge pipe.
3. The water tank type heating pipeline according to claim 1, characterized in that, Both ends of the phase change material pipe layer are sealed.
4. A water tank type heating system, characterized in that, It includes a water tank type heating pipeline and a heat storage tank as described in claim 1; The first end of the water tank type heating pipeline is located inside the heat storage tank, and the second end of the water tank type heating pipeline is located at a preset distance in front of the pipeline interface outside the heat storage tank.
5. The water tank type heating system according to claim 4, characterized in that, The phase change material pipe layer of the water tank type heating pipeline has the same length as the steam supply / discharge pipe of the water tank type heating pipeline, and the length of the steam inlet / water inlet pipe of the water tank type heating pipeline is greater than that of the steam supply / discharge pipe; One end of the phase change material pipe layer, one end of the steam supply / discharge pipe, and one end of the steam inlet / water inlet pipe are aligned at the second end. The other end of the phase change material pipe layer is aligned with the other end of the steam supply / discharge pipe, and both extend inside the heat storage tank without reaching the first end. The other end of the steam inlet / water inlet pipe extends inside the heat storage tank to reach the first end.
6. The water tank type heating system according to claim 5, characterized in that, Both ends of the phase change material pipe layer are sealed.
7. The water tank type heating system according to claim 5, characterized in that, The heat storage tank includes an inlet steam branch pipe; One end of the steam inlet / water inlet pipe inside the heat storage tank is connected to the inlet steam branch pipe.
8. The water tank type heating system according to claim 7, characterized in that, The phase change material pipe layer and the steam supply / discharge pipe extend linearly inside the heat storage tank without bending; The steam inlet / water inlet pipe extends linearly inside the heat storage tank and then bends towards the inlet steam branch pipe to be connected to the inlet steam branch pipe.
9. The water tank type heating system according to claim 7, characterized in that, A plurality of air distribution pipes are connected to the inlet steam branch pipe.
10. The water tank type heating system according to any one of claims 4-9, characterized in that, The heat storage tank is provided with a sensor interface, and a gate valve and a regulating valve are connected at the sensor interface.