Air source heating device

Abstract

The utility model discloses an air source heating device which comprises a heat exchange groove, and a cavity is formed in the heat exchange groove. The air source pipeline is partially arranged in the cavity, an inlet and an outlet of the air source pipeline are respectively arranged outside the heat exchange groove, the inlet of the air source pipeline is communicated with an external air supply pipeline, and the outlet of the air source pipeline is communicated with a pressure regulating valve director; the solar heat collection plate is circularly communicated with the cavity through a communication pipeline, the solar heat collection plate and the cavity are respectively filled with a circulating medium, and the circulating medium circularly flows between the solar heat collection plate and the cavity; the heating end of the electric heater is inserted into the heat exchange groove and is in contact with the circulating medium in the cavity; and a first temperature detector. Therefore, by intelligently controlling cooperative work of solar heating and electric auxiliary heating, the problems of high energy consumption and poor reliability of a traditional single heating mode are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas transmission and distribution technical field especially relates to a gas source heating device. BACKGROUND

[0002] In the natural gas transmission and distribution system, the gas source pipeline of the pressure regulating valve commander often faces the gas condensation and even icing problem caused by low temperature environment, which seriously hinders the normal operation of the pressure regulating valve.

[0003] At present, the traditional solution is one kind of electric heating tape or gas heating method, this method energy consumption is high, also excessively depends on the supply of external power or gas, then there is certain limitation in control precision, another kind is through the solar heating method, although energy saving and environmental protection, but is restricted by weather conditions, cannot guarantee stable operation, poor reliability. UTILITY MODEL CONTENTS

[0004] The utility model aims at at least in a certain extent solves one of the technical problems in the related art.

[0005] Therefore, one purpose of the utility model lies in providing a gas source heating device, through intelligent control solar heating and electric auxiliary heating collaborative work, effectively solve the problem of high energy consumption, poor reliability of traditional single heating mode.

[0006] In order to achieve the above object, the utility model provides a gas source heating device, including heat exchange groove, the cavity is arranged in the heat exchange groove, the gas source pipeline is partially placed in the cavity, and the inlet and outlet of the gas source pipeline are arranged outside the heat exchange groove respectively, and the inlet of the gas source pipeline is communicated with the external gas supply pipeline, and the outlet of the gas source pipeline is communicated with the pressure regulating valve commander, solar collector plate, and the cavity is realized circulation intercommunication through the communication pipeline, and the solar collector plate and the cavity are filled with circulating medium respectively, the circulating medium circulates between the solar collector plate and the cavity, and the solar collector plate is used for heating the circulating medium, electric heater, the heating end of the electric heater is inserted in the heat exchange groove and contacts the circulating medium in the cavity, and is used for heating the circulating medium, first temperature detection meter, installed on the heat exchange groove, and the detection end of the first temperature detection meter is arranged in the cavity and contacts the circulating medium, and is used for collecting the temperature of the circulating medium in the cavity, control box, the control box is connected with the first temperature detection meter and the electric heater respectively, and is used for controlling the electric heater according to the temperature collected, and heating the circulating medium.

[0007] The gas source heating device of the utility model, through intelligent control solar heating and electric auxiliary heating collaborative work, effectively solve the problem of high energy consumption, poor reliability of traditional single heating mode.

[0008] In addition, the air source heating device according to the above application can further have the following additional technical features:

[0009] Specifically, the communication pipeline comprises a first pipeline and a second pipeline, wherein the liquid outlet end of the solar heat collecting plate is connected to the cavity through the first pipeline, the liquid inlet end of the solar heat collecting plate is connected to the cavity through the second pipeline, the circulating medium is filled in the solar heat collecting plate, and the circulating medium circulates between the solar heat collecting plate, the first pipeline, the cavity, the second pipeline and the solar heat collecting plate.

[0010] Specifically, the electromagnetic valve is further arranged on the first pipeline, and the electromagnetic valve is connected to the control box.

[0011] Specifically, the second temperature detector is further arranged on the outlet for collecting the temperature of the air source at the outlet, and the second temperature detector is connected to the control box.

[0012] Specifically, the control box comprises a box body, a total power switch, a first temperature controller, and a first power switch, wherein the total power switch, the first temperature controller, and the first power switch are arranged in the box body respectively, the first power switch is connected to the first temperature controller and the total power switch respectively, and the first temperature controller is connected to the first temperature detector and the electromagnetic valve respectively.

[0013] Specifically, the control box further comprises a second temperature controller and a second power switch, wherein the second temperature controller and the second power switch are arranged in the box body respectively, the second power switch is connected to the second temperature controller and the total power switch respectively, and the second temperature controller is connected to the second temperature detector.

[0014] Specifically, the control box further comprises a temperature control box and a temperature control switch, the temperature control switch is arranged on the heat exchange tank, the temperature control box is connected to the total power switch, the electric heater, the first temperature controller, and the second temperature controller respectively, and the temperature control switch is connected to the total power switch and the electric heater respectively.

[0015] Specifically, the outer wall of the heat exchange tank is provided with a first port and a second port, the first port and the second port are connected to the cavity, the first pipeline is connected to the first port, and the second pipeline is connected to the second port.

[0016] Specifically, the outer wall of the heat exchange tank is coated with a heat preservation component.

[0017] Specifically, the circulating medium is one of water, antifreeze and heat conducting oil. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated in the specification and forming a part thereof reveal embodiments of the present application and serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows, and obviously, other drawings can be obtained by those skilled in the art without creative labor under the premise of not paying the creative labor.

[0020] Figure 1 It is a structure schematic view of the gas source heating device according to one embodiment of the present application;

[0021] Figure 2 It is a structure schematic view of the inside of the heat exchange tank according to one embodiment of the present application.

[0022] As shown in the figure:

[0023] 1, heat exchange tank; 10, cavity; 11, first port; 12, second port;

[0024] 2, gas source pipeline; 20, inlet; 21, outlet;

[0025] 3, solar heat collecting plate; 30, communication pipeline; 31, circulating medium; 300, first pipeline; 301, second pipeline;

[0026] 4, electric heater;

[0027] 5, first temperature detector;

[0028] 6, control box; 60, box body; 61, main power switch; 62, first temperature controller; 63, first power switch; 64, second temperature controller; 65, second power switch; 66, temperature control box; 67, temperature control switch;

[0029] 7, electromagnetic valve;

[0030] 8, second temperature detector. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0033] The gas source heating device of this utility model embodiment will be described below with reference to the accompanying drawings.

[0034] The gas source heating device provided in this embodiment is installed upstream of the pressure regulating valve pilot to preheat the gas source before it enters the pressure regulating valve pilot. This effectively prevents condensation or even freezing of the gas source inside the pressure regulating valve pilot in low-temperature environments, thus ensuring the pressure regulating valve can operate continuously and normally, unaffected by severe weather conditions.

[0035] like Figure 1 As shown, the gas source heating device of this utility model embodiment may include a heat exchange tank 1, a gas source pipeline 2, a solar collector 3, an electric heater 4, a first temperature detector 5, and a control box 6.

[0036] The heat exchange tank 1 is provided with a cavity 10.

[0037] The gas source pipeline 2 is placed in the cavity 10. The inlet 20 and outlet 21 of the gas source pipeline 2 are respectively arranged outside the heat exchange tank 1. The inlet 20 of the gas source pipeline 2 is connected to the external gas supply pipeline, and the outlet 21 of the gas source pipeline 2 is connected to the pressure regulating valve pilot.

[0038] Among them, the pipelines placed in the cavity 10 can adopt a U-shaped, circular, elliptical, serpentine, or spiral layout, which can be selected according to the actual situation. This design can significantly increase the contact time and contact area between the gas in the gas source pipeline 2 and the circulating medium 31, thereby effectively improving the heating efficiency of the gas in the gas source pipeline 2 and enhancing the heating effect.

[0039] The solar collector plate 3 is circulated to the cavity 10 through the connecting pipe 30. The solar collector plate 3 and the cavity 10 are respectively filled with a circulating medium 31. The circulating medium 31 circulates between the solar collector plate 3 and the cavity 10. The solar collector plate 3 is used to heat the circulating medium 31. It can be understood that the solar collector plate 3 absorbs heat and converts solar energy into thermal energy to heat the circulating medium 31 inside. At the same time, it can also utilize the thermosiphon effect after the circulating medium 31 is heated, and rely on the density change of the circulating medium 31 after heating to realize the circulation of the circulating medium 31 between the solar collector plate 3 and the cavity 10.

[0040] As a possible case, in order to facilitate the circulation of the circulating medium 31 to accelerate, the solar heat collecting plate 3 and the heat exchange tank 1 can be arranged to have a drop between them, so as to accelerate the flow rate of the circulating medium 31 by gravity, or a circulating pump is additionally arranged on the connecting pipeline 30.

[0041] It should be noted that the circulating medium 31 can be one of water, antifreeze and heat conducting oil, which can be selected according to actual conditions. Preferably, the circulating medium 31 is heat conducting oil, which is significantly superior to water and antifreeze in high temperature stability, wide temperature range adaptability, low maintenance requirement and the like, and is particularly suitable for high temperature output or extreme climate, so as to ensure the stability of long-term operation.

[0042] As a possible case, a metal pipe bundle encapsulating phase change material can be embedded in the cavity 10 to store excess heat during the day and release heat at night or on rainy days to maintain the temperature difference of the circulation.

[0043] Specifically, during the day, the solar heat collecting plate absorbs solar energy and converts it into heat energy to heat the circulating medium 31. The circulating medium 31 transfers heat to the metal pipe bundle inside the cavity 10, causing the paraffin encapsulated therein to gradually melt and absorb a large amount of latent heat. In this way, the excess heat during the day is effectively stored.

[0044] At night or on rainy days, when the temperature of the circulating medium 31 drops, the paraffin in the metal pipe bundle begins to solidify and release the latent heat stored before. These heat is transferred to the circulating medium 31 through the metal pipe bundle, and in turn heats the gas in the gas source pipeline 2, maintains the temperature difference of the circulation system, and ensures the stable operation of the system.

[0045] The heating end of the electric heater 4 is inserted into the heat exchange tank 1 and is in contact with the circulating medium 31 in the cavity 10, for heating the circulating medium 31, that is, the electric heater 4 can heat the circulating medium 31 by converting electrical energy into heat energy.

[0046] The first temperature detector 5 is installed on the heat exchange tank 1, and the detection end of the first temperature detector 5 is arranged in the cavity 10 in contact with the circulating medium 31, for collecting the temperature of the circulating medium 31 in the cavity 10. The control box 6 is connected with the first temperature detector 5 and the electric heater 4 respectively, for controlling the electric heater 4 according to the collected temperature, and heating the circulating medium 31.

[0047] Specifically, the external gas supply pipeline delivers gas to the pressure regulating valve commander through the gas source pipeline 2. In this process, the solar heat collecting plate 3 absorbs heat and converts solar energy into heat energy to heat the circulating medium 31 inside it. The heated circulating medium 31 flows into the cavity 10 to heat the gas source arranged in the pipeline of the cavity 10, so as to increase the temperature of the gas source in the gas source pipeline 2. This way is energy-saving and environment-friendly, and has low energy consumption.

[0048] During the heating of the gas source, the first temperature detector 5 collects the temperature of the circulating medium 31 in the cavity 10 in real time and feeds back the data to the control box 6, and the control box 6 compares the collected temperature with the preset low temperature threshold temperature, and if it is judged that the collected temperature is lower than the preset low temperature threshold temperature, it indicates that the solar heat collecting plate 3 is affected by external weather, and the heating effect on the circulating medium 31 is unstable or even stops heating.

[0049] At this time, the control box 6 controls the electric heater 4 to operate and assists in heating the circulating medium 31, and after the circulating medium 31 returns to the preset suitable temperature range, the control box 6 can control the electric heater 4 to constant temperature heating or stop heating, so as to ensure the stability of the temperature of the gas source pipeline 2, reduce the energy consumption, and improve the reliability of the device, wherein the preset suitable temperature range and the preset low temperature threshold temperature can be set according to the actual situation.

[0050] Through the cooperative work of solar heating and electric auxiliary heating, the problems of high energy consumption and poor reliability of the traditional single heating mode are effectively solved. The device is particularly suitable for low temperature protection scenes of natural gas transmission and distribution system. At the same time, whether it is solar heating or electric auxiliary heating, it is indirectly heated to the gas source pipeline 2 through the circulating medium 31, which greatly improves the safety of heating compared with the traditional scheme of directly heating the gas source pipeline.

[0051] In an embodiment of the present application, as shown in Figure 1 The communication pipeline 30 includes a first pipeline 300 and a second pipeline 301, wherein the liquid outlet end of the solar heat collecting plate 3 is connected with the cavity 10 through the first pipeline 300, the liquid inlet end of the solar heat collecting plate 3 is connected with the cavity 10 through the second pipeline 301, the circulating medium 31 is filled in the solar heat collecting plate 3, and the circulating medium 31 circulates between the solar heat collecting plate 3, the first pipeline 300, the cavity 10, the second pipeline 301 and the solar heat collecting plate 3.

[0052] In the above scheme, through the communication of the first pipeline 300 and the second pipeline 301, the circulating medium 31 can form a closed loop circulation between the solar heat collecting plate 3 and the cavity 10, wherein the outer pipe wall of the first pipeline 300 and the second pipeline 301 can also be coated with thermal insulation cotton to reduce heat loss.

[0053] In an embodiment of the present application, as shown in Figure 1 The gas heating device can further include a solenoid valve 7, the solenoid valve 7 is arranged on the first pipeline 300, and the solenoid valve 7 is connected with the control box 6.

[0054] In the above scheme, by setting the electromagnetic valve 7, when the control box 6 judges that the temperature value collected by the first temperature detector 5 exceeds the preset high temperature threshold, the control box 6 can control the electromagnetic valve 7 to close, stop the circulating flow of the circulating medium 31, and reduce the heat transfer. This action effectively stops the circulating flow of the circulating medium 31, thereby reducing the heat transfer, avoiding potential damage to the gas source pipeline 2 caused by continuous high temperature flow, and effectively prolonging the service life. More importantly, this entire process does not require manual intervention, improving safety.

[0055] In an embodiment of the present application, as shown in Figure 1 The gas source heating device further comprises a second temperature detector 8, which is arranged on the outlet 21 and used to collect the temperature of the gas source at the outlet 21, and the second temperature detector 8 is connected to the control box 6.

[0056] Specifically, the second temperature detector 8 is used to collect the temperature of the gas source at the outlet 21 and send it to the control box 6. The control box 6 is used to accurately adjust the output power of the electric heater 4 and the working state of the electromagnetic valve 7 according to the temperature data fed back by the second temperature detector 8, so as to ensure that the temperature of the gas source is always kept within the set range. Through accurate control, energy waste or equipment damage caused by excessively high or low gas source temperature can be avoided, thereby improving the performance and efficiency of the entire gas source heating device.

[0057] In an embodiment of the present application, as shown in Figure 1 The control box 6 comprises a box body 60, a total power switch 61, a first temperature controller 62, and a first power switch 63.

[0058] The total power switch 61, the first temperature controller 62, and the first power switch 63 are arranged in the box body 60, respectively, and the first power switch 63 is connected to the first temperature controller 62 and the total power switch 61, respectively. The first temperature controller 62 is connected to the first temperature detector 5 and the electromagnetic valve 7, respectively.

[0059] It should be noted that the box body 60 is an explosion-proof box body, which is designed to be explosion-proof, thereby reducing damage caused by explosion accidents caused by electrical equipment failure or improper operation, thereby improving safety.

[0060] In the above scheme, the total power switch 61, the first temperature controller 62, the first power switch 63 and other components are concentrated in the box 60, which is convenient for the operator to manage and monitor uniformly, improves the work efficiency and the convenience of operation. And the function division of each component is clear, such as the total power switch 61 is responsible for the control of the overall power supply, the first temperature controller 62 is responsible for the monitoring, adjustment and control of the temperature, and the first power switch 63 controls the power supply of the first temperature controller 62. The clear function division makes the fault troubleshooting and maintenance become more simple and fast.

[0061] Meanwhile, the first temperature controller 62 is connected with the first temperature detector 5 and the electromagnetic valve 7, realizing automatic detection and control of the temperature. When the temperature reaches the set value, the first temperature controller 62 can control the electromagnetic valve 7 to automatically open or close, thereby adjusting the temperature and improving the accuracy and efficiency of the control.

[0062] In an embodiment of the present application, as shown in Figure 1 The control box 6 further comprises a second temperature controller 64 and a second power switch 65, wherein the second temperature controller 64 and the second power switch 65 are arranged in the box 60 respectively, the second power switch 65 is connected with the second temperature controller 64 and the total power switch 61 respectively, and the second temperature controller 64 is connected with the second temperature detector 8.

[0063] In the above scheme, by increasing the second temperature controller 64, the control box 6 can now monitor and control two different temperature points or regions simultaneously, and the arrangement of the second temperature controller 64 and the second power switch 65 enables the second temperature control system to operate and maintain independently of the first temperature control system. This means that when one system fails or needs maintenance, the other system can still operate normally, ensuring the continuity and stability of the system.

[0064] Meanwhile, the second power switch 65 can be arranged to control the power supply of the second temperature controller 64 independently, which can cut off the power supply when the second temperature controller 64 fails, so as to prevent the fault from spreading or causing greater damage, and at the same time does not affect the independent operation of the first temperature controller 62.

[0065] In an embodiment of the present application, as shown in Figure 1 The control box 6 further comprises a temperature control box 66 and a temperature control switch 67, the temperature control switch 67 is arranged on the heat exchange tank 1, the temperature control box 66 is connected with the total power switch 61, the electric heater 4, the first temperature controller 62 and the second temperature controller 64 respectively, and the temperature control switch 67 is connected with the total power switch 61 and the electric heater 4 respectively.

[0066] In the above scheme, the temperature control box 66 is connected with the first temperature controller 62 and the second temperature controller 64 respectively, can control the electric heater 4 according to the feedback data of the first temperature controller 62 and the second temperature controller 64, flexibly adjust the heating power, realize accurate temperature control. While the temperature control switch 67 can be used for manual control of the on-off state of the electric heater 4, and the temperature control switch 67 is arranged on the heat exchange tank 1, which can directly sense the temperature change of the heat exchange tank 1. When the temperature abnormally rises, the temperature control switch 67 can quickly cut off the power supply of the electric heater 4, to prevent overheating damage to the equipment or cause safety accidents.

[0067] In an embodiment of the present application, as shown in Figure 1 and Figure 2 The outer wall of the heat exchange tank 1 is provided with a first port 11 and a second port 12, the first port 11 and the second port 12 are communicated with the cavity 10, the first pipeline 300 is communicated with the first port 11, and the second pipeline 301 is communicated with the second port 12.

[0068] Among them, it can be understood that by setting the first port 11 and the second port 12, the communication installation with the first pipeline 300 and the second pipeline 301 is facilitated, and great installation convenience is provided.

[0069] In an embodiment of the present application, the outer wall of the heat exchange tank 1 is coated with a heat preservation component, wherein the heat preservation component can be at least one of rock wool or aluminum plate, which can effectively reduce heat loss, maintain the temperature stability inside the heat exchange tank 1, and improve the heat preservation effect of the heat exchange tank 1.

[0070] In summary, the gas heating device of the embodiment of the present application cooperates the work of solar heating and electric auxiliary heating through intelligent control, effectively solves the problems of high energy consumption and poor reliability of traditional single heating mode.

[0071] It should be noted that in this paper, 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 the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0072] The foregoing merely illustrates the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The described embodiments are to be considered in all respects only as illustrative and not restrictive.

Claims

1. A gas source heating apparatus, characterized by, It includes: Heat exchange tank, the cavity is arranged in the heat exchange tank; Air source pipeline, the air source pipeline is partially placed in the cavity, the inlet and outlet of the air source pipeline are arranged outside the heat exchange tank respectively, and the inlet of the air source pipeline is communicated with the external air supply pipeline, and the outlet of the air source pipeline is communicated with the pressure regulating valve commander; Solar heat collecting plate, which is circularly communicated with the cavity through the communication pipeline, and the solar heat collecting plate and the cavity are respectively filled with circulating medium, the circulating medium circulates between the solar heat collecting plate and the cavity, and the solar heat collecting plate is used for heating the circulating medium; Electric heater, the heating end of the electric heater is inserted into the heat exchange tank and is in contact with the circulating medium in the cavity, and is used for heating the circulating medium; First temperature detection meter, installed on the heat exchange tank, and the detection end of the first temperature detection meter is arranged in the cavity contacting the circulating medium, for collecting the temperature of the circulating medium in the cavity; Control box, the control box is connected with the first temperature detection meter and the electric heater respectively, for controlling the electric heater according to the collected temperature, and heating the circulating medium.

2. The gas source heating apparatus of claim 1, wherein, The communication pipeline includes a first pipeline and a second pipeline, wherein, The liquid outlet of the solar heat collecting plate is connected with the cavity through the first pipeline, the liquid inlet of the solar heat collecting plate is connected with the cavity through the second pipeline, the circulating medium is filled in the solar heat collecting plate, and the circulating medium circulates between the solar heat collecting plate, the first pipeline, the cavity, the second pipeline and the solar heat collecting plate.

3. The gas source heating apparatus of claim 2, wherein, It also includes a solenoid valve, which is arranged on the first pipeline and connected with the control box.

4. The gas source heating apparatus of claim 3, wherein, It also includes a second temperature detection meter, which is arranged on the outlet for collecting the temperature of the air source at the outlet, and the second temperature detection meter is connected with the control box.

5. The gas source heating apparatus of claim 4, wherein, The control box includes a box body, a total power switch, a first temperature control instrument, and a first power switch, wherein, The total power switch, the first temperature control instrument and the first power switch are arranged in the box body respectively, and the first power switch is connected with the first temperature control instrument and the total power switch respectively, and the first temperature control instrument is connected with the first temperature detection meter and the solenoid valve respectively.

6. The gas source heating apparatus of claim 5, wherein, The control box also includes a second temperature control instrument and a second power switch, wherein the second temperature control instrument and the second power switch are arranged in the box body respectively, and the second power switch is connected with the second temperature control instrument and the total power switch respectively, and the second temperature control instrument is connected with the second temperature detection meter.

7. The gas source heating apparatus of claim 6, wherein, The control box also includes a temperature control box and a temperature control switch, the temperature control switch is arranged on the heat exchange tank, and the temperature control box is connected with the total power switch, the electric heater, the first temperature control instrument and the second temperature control instrument respectively, and the temperature control switch is connected with the total power switch and the electric heater respectively.

8. The gas source heating apparatus of claim 2, wherein, The outer wall of the heat exchange tank is provided with a first port and a second port, which are communicated with the cavity, the first pipeline is communicated with the first port, and the second pipeline is communicated with the second port.

9. The gas source heating apparatus of claim 1, wherein, The outer wall of the heat exchange tank is coated with a heat preservation component.

10. The gas source heating apparatus of claim 1, wherein, The circulating medium is one of water, anti-freezing liquid and heat conducting oil.

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