Heating system for a Christmas tree and Christmas tree
By installing a heating system consisting of a heat source supply device, a heat exchange device, and a phase change thermal storage device on the gas-producing tree, combined with solar thermal collection, the problem of low-temperature ice blockage in the gas-producing tree was solved, achieving efficient and safe heating and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2025-05-08
- Publication Date
- 2026-06-23
AI Technical Summary
Existing gas extraction trees are prone to ice blockage at low temperatures, which can lead to abnormal gas extraction operations. Furthermore, existing heating methods suffer from high labor costs, uneven heating, low efficiency, and potential safety hazards.
A heating system including a heat source supply device, a heat exchange device, and a phase change thermal storage device is adopted. The gas-collecting tree is heated by heat exchange through a heat exchange medium, and the phase change thermal storage device is used to store and release heat. Combined with a solar thermal collector, the heating efficiency and safety are improved.
This technology enables effective heating of the gas-producing tree, avoids ice blockage, saves energy, reduces costs, and improves the safety and efficiency of heating.
Smart Images
Figure CN224398031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of natural gas development equipment technology, and in particular to a heating system for a gas production tree and a gas production tree. Background Technology
[0002] The wellhead is an essential component in the natural gas extraction process. Its main function is to control wellhead pressure and gas flow through valves on the wellhead to ensure the safe operation of natural gas extraction. Because the wellhead is a surface-mounted component, in some cold regions, the throttle valves on the wellhead are prone to ice blockage at low temperatures, affecting the normal operation of gas extraction.
[0003] Currently, the main methods for heating gas-producing trees include steam injection heating, hot water irrigation heating, and electric heating. Among these, steam injection heating and hot water irrigation heating are manual operations, which have problems such as high labor costs, inconsistent and uneven heating, limited heating effect, and low heating efficiency. Electric heating is automatic and continuous heating, but it consumes a huge amount of energy based on the thermoelectric effect, and the introduction of current poses a risk of electric sparks, which is a safety hazard. Utility Model Content
[0004] This application provides a heating system for a gas-producing tree and a gas-producing tree, which can effectively heat the gas-producing tree, improve heating efficiency, ensure heating effect, avoid ice blockage at the throttle valve position of the gas-producing tree at low temperatures, and also save energy, reduce costs, and improve the safety of heating the gas-producing tree.
[0005] In a first aspect, embodiments of this application provide a heating system for a gas-producing tree, comprising: a heat source supply device for providing a heat exchange medium; a heat exchange device including a heat exchange medium channel, one end of which is connected to the heat source supply device, at least a portion of which is disposed outside the gas-producing tree, such that the heat exchange device heats the gas-producing tree through heat exchange; and a phase change heat storage device, which is disposed at the end of the heat exchange device connected to the heat source supply device, wherein the heat exchange medium in the heat exchange medium channel enables the phase change heat storage device to perform phase change heat storage.
[0006] According to the aforementioned embodiments of the first aspect of this application, the phase change thermal storage device includes a thermal storage tank and a phase change thermal storage medium. The thermal storage tank has a receiving chamber, the phase change thermal storage medium is disposed in the receiving chamber, and one end of the heat exchange device connected to the heat source supply device is buried in the phase change thermal storage medium.
[0007] According to any of the foregoing embodiments of the first aspect of this application, the phase change thermal storage device includes a phase change medium encapsulation body, the phase change thermal storage medium encapsulation body is disposed in a receiving cavity, and the phase change thermal storage medium is encapsulated in the phase change medium encapsulation body.
[0008] According to any of the foregoing embodiments of the first aspect of this application, the heating system further includes a solar thermal collector, which includes a collector and a collector tube, the collector being connected to the collector tube, and at least a portion of the collector tube being wound around the outside of the phase change thermal storage medium encapsulation body.
[0009] According to any of the foregoing embodiments of the first aspect of this application, the solar thermal collector further includes a liquid pump, which is disposed on the pipeline of the collector tube.
[0010] According to any of the foregoing embodiments of the first aspect of this application, the solar thermal collector further includes a liquid storage tank, which is connected to the heat collection pipe and is located at the end of the liquid pump near the heat collector.
[0011] According to any of the foregoing embodiments of the first aspect of this application, the outer layer of the heat storage tank is provided with an insulation layer, and / or the heat storage tank is made of insulation material.
[0012] According to any of the foregoing embodiments of the first aspect of this application, the heat exchange device is a heat exchange conduit, which includes a first conduit and a plurality of second conduits. One end of the first conduit is connected to a heat source supply device, and the other end of the first conduit is connected to one end of each of the second conduits. Each of the second conduits is arranged around the gas collection tree.
[0013] According to any of the foregoing embodiments of the first aspect of this application, the heat source supply device is a heating water jacket furnace, which includes an inlet and an outlet. The inlet is connected to one end of the first conduit, and the outlet is connected to the other end of each of the second conduits.
[0014] Secondly, embodiments of this application also provide a gas-collecting tree, including the heating system of any of the foregoing embodiments of the first aspect of this application.
[0015] According to the heating system of this application embodiment, a heated heat exchange medium is provided by a heat source supply device. The heat exchange medium enters the heat exchange medium channel of the heat exchange device. At least part of the heat exchange device is disposed outside the gas extraction tree, so the heat exchange medium in the heat exchange medium can exchange heat with the gas extraction tree to continuously and effectively heat the gas extraction tree and prevent the valves on the gas extraction tree from becoming blocked. At the same time, since a phase change heat storage device is provided at the end of the heat exchange medium connected to the heat source supply device, when the heat exchange medium heated by the heat source supply device enters the heat exchange channel of the heat exchange device, the heat lost by the heat exchange medium in the heat exchange channel causes the phase change heat storage device to undergo a phase change and store the heat generated by the phase change. The heat stored by the phase change heat storage device can be absorbed by the heat exchange medium in the heat exchange channel, thereby saving the heat provided by the heat source supply device to the heat exchange medium and reducing costs. Attached Figure Description
[0016] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the heating system for a gas-producing tree in one embodiment of this application.
[0018] Figure label:
[0019] 100-Heating system; 200-Gas collection tree; 10-Heat exchange device; 11-First conduit; 12-Second conduit; 20-Phase change thermal storage device; 21-Storage tank; 22-Phase change thermal storage medium; 23-Phase change medium encapsulation body; 30-Solar collector; 31-Collector; 32-Collector tube; 33-Infusion pump; 34-Storage tank. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings.
[0021] This application provides a heating system for a gas-producing tree and a gas-producing tree, which can effectively heat the gas-producing tree, improve heating efficiency, ensure heating effect, avoid ice blockage at the throttle valve position of the gas-producing tree at low temperatures, and also save energy, reduce costs, and improve the safety of heating the gas-producing tree.
[0022] Figure 1 This is a schematic diagram of the heating system used for a gas-producing tree in one embodiment of this application. Figure 1 As shown in the illustration, this application provides a heating system 100 for a gas-producing tree 200. The heating system 100 includes a heat source supply device, a heat exchange device 10, and a phase change heat storage device 20. The heat source supply device provides a heat exchange medium. The heat exchange device 10 includes a heat exchange medium channel, one end of which is connected to the heat source supply device. At least a portion of the heat exchange device 10 is disposed outside the gas-producing tree 200, allowing the heat exchange device 10 to perform heat exchange heating on the gas-producing tree 200. The phase change heat storage device 20 is disposed over the end of the heat exchange device 10 connected to the heat source supply device. The heat exchange medium within the heat exchange medium channel enables the phase change heat storage device 20 to perform phase change heat storage or heat dissipation.
[0023] It should be noted that the heat exchange medium can be either gas or liquid. The heat source supply device can not only provide the heat exchange medium but also continuously heat it. The heated heat exchange medium flows into the heat exchange channel of the heat exchange device 10. In this embodiment, liquid water is used as an example for illustration.
[0024] It is understood that the heat exchange device 10 is installed outside the gas production tree 200. The heat exchange device 10 can be a pipe with a heat exchange channel. The heat exchange device 10 with the pipe wrapped around the gas production tree 200 can also be a detachable shell with a heat exchange channel. The shell is detachably fastened to the gas production tree 200. When the heat exchange device 10 is a detachable shell, the shell structure matches the external structure of the gas production tree 200. When the heated heat exchange medium flows through the heat exchange channel of the heat exchange device 10, it will exchange heat with the gas production tree 200 to heat the gas production tree 200.
[0025] According to the heating system 100 of this application embodiment, a heated heat exchange medium is provided by a heat source supply device. The heat exchange medium enters the heat exchange medium channel of the heat exchange device 10. At least a portion of the heat exchange device 10 is disposed outside the gas extraction tree 200, so the heat exchange medium in the heat exchange medium can exchange heat with the gas extraction tree 200 to continuously and effectively heat the gas extraction tree 200 and prevent the valves on the gas extraction tree 200 from becoming blocked. At the same time, since a phase change heat storage device 20 is provided at the end of the heat exchange medium connected to the heat source supply device, when the heat exchange medium heated by the heat source supply device is only in the heat exchange channel of the heat exchange device 10, the heat lost by the heat exchange medium in the heat exchange channel causes the phase change heat storage device 20 to undergo a phase change and store the heat generated by the phase change. On the one hand, the heat stored in the phase change heat storage device 20 can keep the heat exchange medium warm and prevent heat loss. On the other hand, when the heat of the heat exchange medium in the phase change heat storage device 20 is insufficient, the heat stored in the phase change heat storage medium can dissipate heat to heat the heat exchange medium. The heat stored in the phase change can also be absorbed by the heat exchange medium in the heat exchange channel, thereby saving the heat supplied by the heat source supply device to the heat exchange medium and reducing costs.
[0026] like Figure 1 As shown, in some embodiments, the phase change thermal energy storage device 20 includes a thermal energy storage tank 21 and a phase change thermal energy storage medium 22. The thermal energy storage tank 21 has a receiving chamber. The phase change thermal energy storage medium 22 is disposed in the receiving chamber, and one end of the heat exchange device 10 connected to the heat source supply device is buried in the phase change thermal energy storage medium 22. In this embodiment, the phase change thermal energy storage medium 22 can be a gas, liquid, or solid. The thermal energy storage tank 21 provides space for the phase change thermal energy storage medium 22, ensuring that the phase change thermal energy storage medium 22 will not leak during the phase change process and remains isolated from the external environment, thereby ensuring the safety and efficiency of the device. At the same time, the thermal energy storage tank 21 can also reduce the heat loss generated by the phase change of the phase change thermal energy storage medium 22.
[0027] like Figure 1As shown, in some embodiments, the phase change thermal storage device 20 includes a phase change medium encapsulation body 23. The phase change thermal storage medium 22 is encapsulated within the receiving chamber, and the phase change thermal storage medium 22 is encapsulated within the phase change medium encapsulation body 23 to prevent leakage of the phase change thermal storage medium 22 due to volume or pressure changes during the phase change process. Furthermore, by encapsulating the phase change thermal storage medium 22 into an independent unit through the phase change medium encapsulation body 23, the efficiency of thermal energy storage and release can be improved.
[0028] like Figure 1 As shown, in some embodiments, the heating system 100 further includes a solar collector 30. The solar collector 30 includes a collector 31 and a collector tube 32. The collector 31 is connected to the collector tube 32, and at least a portion of the collector tube 32 is wound around the outside of the phase change thermal storage medium 22 encapsulation.
[0029] In this embodiment, the solar collector 31 of the solar collector device 30 can collect solar energy and, through a heat dissipation tube located outside the encapsulation of the phase change thermal storage medium 22, achieve heat exchange between the collector tube 32 and the phase change thermal storage medium 22. Specifically, the collector tube 32 conducts the solar energy collected by the collector 31 to the phase change thermal storage medium 22 for storage through a circulating medium inside the tube, further achieving the energy-saving effect.
[0030] like Figure 1 As shown, in some embodiments, the solar collector 30 further includes a liquid pump 33, which is disposed on the pipeline of the collector tube 32. The liquid pump 33 can accelerate the transmission and circulation of the circulating medium within the collector tube 32, thereby improving the heat exchange efficiency between the collector tube 32 and the phase change heat storage medium 22.
[0031] like Figure 1 As shown, in some embodiments, the solar collector 30 further includes a liquid storage tank 34. The liquid storage tank 34 is connected to the collector tube 32 and is located at the end of the liquid pump 33 near the collector 31.
[0032] In this embodiment, when the collector 31 does not receive heat from the sun, such as during cloudy or rainy weather, the circulating medium in the collector tube 32 will absorb the heat stored in the phase change heat storage layer when its temperature is lower than the temperature of the heat stored in the phase change heat storage medium 22. This will then lead to the heat being discharged from the phase change heat storage medium 22 to the outside. At this time, the medium in the collector tube 32 is released through the storage tank 34 and the pump 33 is turned off. This prevents the circulating medium in the collector tube 32 from circulating in the storage tank 34, thus avoiding heat exchange between the circulating medium in the collector tube 32 and the phase change heat storage medium 22, thereby ensuring the heat storage of the phase change heat storage device 20.
[0033] When the solar collector 31 is able to collect solar energy, the infusion pump 33 can be turned on to pump the circulating medium from the storage tank into the solar collector tube 32 for circulation, so that the solar energy collected by the solar collector 31 can be stored again in the phase change thermal storage medium 22. In this process, since the circulating medium in the solar collector tube 32 is stored in the storage tank when not circulating, and is pumped back from the storage tank when needed, the circulating medium in the storage tank has a certain amount of heat compared to introducing new circulating medium, so the solar energy is effectively utilized again, saving energy.
[0034] In some optional embodiments, the storage tank 34 is also provided with a liquid outlet to discharge the circulating medium in the storage tank 34. It is understood that in other embodiments, a drain port can be directly provided on the collection pipe, and a valve can be provided at the drain port. On cloudy days or when solar energy cannot be collected, the circulating medium in the collection pipe can be discharged through the drain port by the valve, so as to avoid heat exchange between the circulating medium in the heat collection tube 32 and the phase change heat storage medium 22.
[0035] like Figure 1 As shown, in some embodiments, the outer layer of the heat storage tank 21 is provided with an insulation layer to reduce the loss of heat from the inside of the heat storage tank 21 to the outside, improve the heat storage efficiency, and extend the heat storage time, so that the heat storage tank 21 can provide a more stable and lasting heat source when heat needs to be released.
[0036] Furthermore, the heat storage tank 21 is made of insulation materials, such as rock wool, glass wool, polyurethane foam, etc., to effectively block heat transfer and reduce heat loss.
[0037] In some optional implementations, the outer layer of the storage tank 34 is also provided with an insulation layer or the storage tank 34 is made of insulation material to reduce the heat loss of the circulating medium in the storage tank 34.
[0038] like Figure 1 As shown, in some embodiments, the heat exchange device 10 is a heat exchange conduit. The heat exchange conduit includes a first conduit 11 and a plurality of second conduits 12. One end of the first conduit 11 is connected to a heat source supply device, and the other end of the first conduit 11 is connected to one end of each of the second conduits 12. Each of the second conduits 12 is wound around the gas extraction tree 200.
[0039] In this embodiment, at least a portion of the first conduit 11 is embedded in the phase change heat storage medium 22 of the phase change heat storage device 20. Multiple second conduits 12 are connected in parallel, with one end of each second conduit 12 connected in parallel to the other end of the first conduit 11. When the heat exchange medium, heated by the heat source supply device, passes through the first conduit 11 into the phase change heat storage device 20, it causes the phase change heat storage medium 22 to undergo phase change and store heat. The heat exchange medium is then distributed through the first conduit 11 to the multiple second conduits 12. Since each second conduit 12 is wound around a different branch of the gas-producing tree 200, the heat exchange medium can effectively exchange heat with the gas-producing tree 200, ensuring the heating range of the gas-producing tree 200.
[0040] like Figure 1 As shown, in some embodiments, the heat source supply device is a heating water jacket furnace (not shown in the figure). The heating water jacket furnace includes an inlet and an outlet. The inlet is connected to one end of the first conduit 11, and the outlet is connected to the other end of each of the second conduits 12. After being heated, the water in the heating water jacket furnace flows into the first conduit 11 of the heat exchange device 10 through the outlet, and then is distributed to the second conduits 12 through the first conduit 11. Since the second conduit 12 is connected to the return device of the heating water jacket, the heat exchange medium that exchanges heat with the gas-collecting tree 200 in the second conduit 12 can flow back to the heating water jacket furnace for heating again. On the one hand, the heat exchange medium can be recycled, and on the other hand, the heat supplied by the heat source supply device to the heat exchange medium can be saved.
[0041] This application also provides a gas extraction tree 200, which includes the aforementioned heating system 100. Based on the embodiments of this application, and possessing all the beneficial effects of the aforementioned heating system 100, further details are omitted here.
[0042] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A heating system for a Christmas tree, characterized in that, include: A heat source supply device for providing and heating a heat exchange medium; A heat exchange device, the heat exchange device including a heat exchange medium channel, one end of the heat exchange medium channel being connected to the heat source supply device, and at least a portion of the heat exchange device being disposed outside the gas-collecting tree, so that the heat exchange device performs heat exchange heating on the gas-collecting tree. as well as A phase change thermal storage device is installed at the end of the heat exchange device connected to the heat source supply device, and the heat exchange medium in the heat exchange medium channel enables the phase change thermal storage device to perform phase change thermal storage.
2. The heating system for a Christmas tree according to claim 1, characterized in that, The phase change thermal storage device includes a thermal storage tank and a phase change thermal storage medium. The thermal storage tank has a receiving chamber, and the phase change thermal storage medium is disposed in the receiving chamber. One end of the heat exchange device connected to the heat source supply device is buried in the phase change thermal storage medium.
3. The heating system for a Christmas tree according to claim 2, wherein, The phase change thermal storage device further includes a phase change medium encapsulation body, which is disposed in the receiving cavity, and the phase change thermal storage medium is encapsulated in the phase change medium encapsulation body.
4. The heating system for a Christmas tree according to claim 2, wherein The heating system also includes a solar collector, which includes a collector and a collector tube. The collector is connected to the collector tube, and at least a portion of the collector tube is wound around the outside of the phase change thermal storage medium encapsulation body.
5. The heating system for a Christmas tree according to claim 4, characterized in that, The solar thermal collector also includes a liquid pump, which is installed on the pipeline of the heat collection tube.
6. The heating system for a Christmas tree according to claim 5, characterized in that, The solar thermal collector also includes a liquid storage tank, which is connected to the heat collection pipe and is located at one end of the liquid pump near the heat collector.
7. The heating system for a Christmas tree according to claim 2, wherein The outer layer of the heat storage tank is provided with an insulation layer, and / or the heat storage tank is made of insulation material.
8. The heating system for a Christmas tree according to claim 1, wherein, The heat exchange device is a heat exchange conduit, which includes a first conduit and a plurality of second conduits. One end of the first conduit is connected to the heat source supply device, and the other end of the first conduit is connected to one end of each of the second conduits. Each of the second conduits is wound around the gas extraction tree.
9. The heating system for a Christmas tree according to claim 8, characterized in that, The heat source supply device is a water jacket furnace, which includes an inlet and an outlet. The inlet is connected to one end of the first conduit, and the outlet is connected to the other end of each of the second conduits.
10. A gas Christmas tree, characterized by The heating system included in any one of claims 1-9.