CN209925037U - Impurity removing device for preposed cooling and postpositional heating of pipe network natural gas pressure energy power generation - Google Patents
Impurity removing device for preposed cooling and postpositional heating of pipe network natural gas pressure energy power generation Download PDFInfo
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- CN209925037U CN209925037U CN201920063665.5U CN201920063665U CN209925037U CN 209925037 U CN209925037 U CN 209925037U CN 201920063665 U CN201920063665 U CN 201920063665U CN 209925037 U CN209925037 U CN 209925037U
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Abstract
The utility model discloses an impurity removing device for pre-cooling and post-heating of natural gas pressure energy power generation of a pipe network, which comprises a double-layer filtering tank device, an information display device and a pneumatic motor heat tracing device; the double-layer filtering tank device comprises a double-layer tank body, a heating low-pressure natural gas outlet, a screen, a normal-temperature high-pressure natural gas inlet, a low-temperature low-pressure natural gas inlet and a cooling high-pressure natural outlet, wherein the screen is arranged in the inner cavity of the double-layer tank body, and the normal-temperature high-pressure natural gas inlet and the cooling high-pressure natural outlet are respectively arranged at the lower part and the upper part of the double-layer tank body and are communicated with the inner cavity of; the heating low-pressure natural gas outlet and the low-temperature low-pressure natural gas inlet are respectively arranged at the upper part and the lower part of the double-layer tank body and are communicated with the interlayer of the double-layer tank body; the utility model discloses need not plus power, easy operation, maintain convenient, job stabilization, can judge whether the screen cloth needs periodic replacement, reduces artifical supervision, improves pipe network natural gas pressure energy power generating equipment's running life.
Description
Technical Field
The utility model belongs to pipe network natural gas pipe network pressure energy electricity generation safety protection field, concretely relates to impurity removal device that is used for leading cooling postposition of pipe network natural gas pressure energy electricity generation to heat up.
Background
The power generation technology of the natural gas pressure energy of the pipe network is paid much attention in recent years, and various related devices are rapidly appeared, wherein the number of potential markets of the small-sized natural gas pressure energy power generation devices is huge.
At present, after observing the long-time operation results of a plurality of gas field station application cases, the impurity components in the natural gas of a pipe network are found to be relatively complex, and even if a high-density screen is added at the front end of pressure energy power generation equipment, the impurities are difficult to prevent from entering an expansion machine. Especially, the internal structure of the pneumatic motor is precise, and the clearance is small and is sensitive to impurity particles. In addition, after long-term operation, more grease impurities with high viscosity are found to be accumulated at the outlet of the pneumatic motor, the impurities gradually block the outlet of the motor, the work efficiency of the motor is reduced until the motor is completely stopped, and the inlet of the motor is free of the impurities. Therefore, in order to prolong the service life of equipment and improve the use efficiency, an impurity removal device aiming at the above conditions is needed, and the system is added with more sufficient safety protection measures while the pressure energy of a natural gas pipe network is fully utilized.
At present, the impurity removal and filtration methods of natural gas in pipe networks in China are generally external condensation or screen equipment, the method is only suitable for large-flow gas, and is not suitable for small-flow pipe network pressure energy power generation systems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to the above-mentioned proposition, present pipe network natural gas pressure can power generation facility's motor export impurity is too much, efficiency and life-span receive negative effects, an edulcoration device that is used for leading cooling postposition of pipe network natural gas pressure energy power generation to heat up is provided, in order to reach the further edulcoration of pneumatic motor import natural gas, utilize jar body to reduce the velocity of flow, make impurity change the deposit, utilize low temperature messenger import natural gas temperature after the inflation to reduce simultaneously, change condensate oil lipid impurity, but set up changer on-line monitoring such as temperature pressure, and do not increase new potential safety hazard.
The utility model realizes the technical scheme of the above purpose:
an impurity removing device for pre-cooling and post-heating of natural gas pressure energy power generation of a pipe network comprises a double-layer filtering tank device with an interlayer, an information display device and a pneumatic motor heat tracing device;
the double-layer filtering tank device comprises a double-layer tank body, a heating low-pressure natural gas outlet, a screen, a normal-temperature high-pressure natural gas inlet, a low-temperature low-pressure natural gas inlet and a cooling high-pressure natural outlet, wherein the screen is arranged in an inner cavity of the double-layer tank body, and the normal-temperature high-pressure natural gas inlet and the cooling high-pressure natural outlet are respectively arranged at the lower part and the upper part of the double-layer tank body and are communicated with the inner cavity of the double-; the heating low-pressure natural gas outlet and the low-temperature low-pressure natural gas inlet are respectively arranged at the upper part and the lower part of the double-layer tank body and are communicated with the interlayer of the double-layer tank body; the information display device is connected and arranged on the outer wall of the cooling high-pressure natural outlet and used for monitoring the real-time air pressure and temperature of the inlet natural gas temperature of the pneumatic motor; the pneumatic motor heat tracing device is arranged on the outer wall of the cooling high-pressure natural inlet of the pneumatic motor and used for adjusting the temperature of the inlet natural gas of the pneumatic motor in real time.
Preferably, the material of the screen is metal or engineering plastic.
Preferably, the diameter of the outermost can body of the double-layer can body is DN200 ~ 300, and the height is 600 ~ 800mm, and the diameter of the innermost can body is DN150 ~ 200, and the height is 500 ~ 700 mm.
Preferably, the bottom of the double-layer tank body is provided with a sewage draining outlet communicated with the inner cavity of the innermost tank body.
Preferably, the sewage draining outlet is provided with an equal-diameter ball valve.
Preferably, the information display device comprises a temperature transmitter and a pressure transmitter, wherein the temperature transmitter is used for monitoring the inlet natural gas temperature of the pneumatic motor and controlling the pneumatic motor heat tracing device to start heating according to the detected temperature; the pressure transmitter is used for monitoring the inlet natural gas pressure value of the pneumatic motor.
Preferably, the pneumatic motor heat tracing device adopts an electric tracing band which is wound on the outer wall of the cooling high-pressure natural inlet.
Preferably, the pneumatic motor heat tracing device is powered by a power generation device driven by the pneumatic motor.
Compared with the prior art and the current situation, the utility model has the following beneficial effects:
1. the equipment implementation cost is lower, and the reduction of natural gas impurities of the pipe network is realized by utilizing various measures. The device does not need additional production and high-precision processing technology, and the device condenses and removes impurities from imported natural gas through recycling low temperature, so that the service efficiency and the service life of the starting motor are improved, and meanwhile, the accident is pre-judged and pre-warned by using the change of the temperature and pressure data of the device.
2. The whole device is simple to operate and convenient to maintain. The device can operate without increasing manual operation, and only needs to be maintained regularly. Whether the filter needs to be replaced or not can be judged, manual supervision is reduced, and the operation efficiency of the pipe network is greatly improved. The device can be gradually popularized and applied to a pipe network natural gas pipe network pressure energy power generation device in the future.
3. The whole device occupies small area and has wide application range. The device only reforms former conventional filter, and owing to need not add additional equipment, can use under various operating modes.
Compared with the prior art and the current situation, the utility model has the following beneficial effects:
1. the equipment implementation cost is lower, and the reduction of natural gas impurities of the pipe network is realized by utilizing various measures. The device does not need additional production and high-precision processing technology, and the device condenses and removes impurities from imported natural gas through recycling low temperature, so that the service efficiency and the service life of the starting motor are improved, and meanwhile, the accident is pre-judged and pre-warned by using the change of the temperature and pressure data of the device.
2. The whole device is simple to operate and convenient to maintain. The device can operate without increasing manual operation, and only needs to be maintained regularly. Whether the filter needs to be replaced or not can be judged, manual supervision is reduced, and the operation efficiency of the pipe network is greatly improved. The device can be gradually popularized and applied to a pipe network natural gas pipe network pressure energy power generation device in the future.
3. The whole device occupies small area and has wide application range. The device only reforms former conventional filter, and owing to need not add additional equipment, can use under various operating modes.
Drawings
Fig. 1 is the utility model discloses a be used for leading cooling postposition edulcoration device schematic structure of intensification of pipe network natural gas pressure energy electricity generation.
The figures show that: 1-a heating low-pressure natural gas outlet, 2-a temperature transmitter, 3-a pressure transmitter, 4-a cooling high-pressure natural inlet, 5-an electric tracing band, 6-a pneumatic motor, 7-a low-temperature low-pressure natural gas outlet, 8-a screen, 9-a sewage discharge outlet, 10-a normal-temperature high-pressure natural gas inlet and 11-a low-temperature low-pressure natural gas inlet. 12-cooling and high-pressure natural export.
Detailed Description
For a better understanding of the present invention, the following description is given in conjunction with the accompanying drawings and examples, but the scope of the invention is not limited to the examples.
Taking a 200W micro pressure energy power generation project in a certain natural gas pipeline pressure regulating tank as an example, the natural gas flow of the pipeline is about 100Nm3The inlet pressure is 0.8MPa, the temperature is about 20 ℃, the pressure is reduced, the pressure is 0.1 MPa, and the temperature is about 5 ℃. As shown in FIG. 1, natural gas enters the pneumatic motor through the high-pressure inlet to do work, and drives the generator through the coupler, so that 200W of electric quantity can be generated. And the expanded natural gas enters a downstream gas pipe network through a low-pressure outlet.
An impurity removing device for pre-cooling and post-heating of natural gas pressure energy power generation of a pipe network comprises a double-layer filtering tank device with an interlayer, an information display device and a pneumatic motor heat tracing device;
the double-deck jar device that filters includes the double-deck jar body, intensification low pressure natural gas export 1, screen cloth 8, normal atmospheric temperature high pressure natural gas import 10, low temperature low pressure natural gas entry 11, cooling high pressure natural export 12, screen cloth 8 sets up in the inner chamber of the double-deck jar body, its material is metal, like the stainless steel. The normal-temperature high-pressure natural gas inlet 10 and the cooling high-pressure natural gas outlet 12 are respectively arranged at the lower part and the upper part of the double-layer tank body and are communicated with the inner cavity of the double-layer tank body; the heating low-pressure natural gas outlet 1 and the low-temperature low-pressure natural gas inlet 11 are respectively arranged at the upper part and the lower part of the double-layer tank body and are communicated with the interlayer of the double-layer tank body; the information display device is connected and arranged on the outer wall of the cooling high-pressure natural outlet and used for monitoring the real-time air pressure and temperature of the inlet natural gas temperature of the pneumatic motor 6; the pneumatic motor heat tracing device is arranged on the outer wall of the cooling high-pressure natural inlet 4 of the pneumatic motor 6 and used for adjusting the temperature of the inlet natural gas of the pneumatic motor 6 in real time, and the pneumatic motor heat tracing device is powered by a power generation device driven by the pneumatic motor.
In the embodiment, DN200 and a steel pipe with the height of 600mm are used as the outermost tank body. In addition, DN150 and a steel pipe with the height of 500mm are used as the innermost tank body.
The bottom of the double-layer tank body is provided with a sewage draining outlet 9 communicated with the inner cavity of the innermost tank body, and the sewage draining outlet 9 adopts a DN25 pipe and is provided with an equal-diameter ball valve.
The information display device comprises a temperature transmitter 2 and a pressure transmitter 3, wherein the temperature transmitter 2 is used for monitoring the temperature of the inlet natural gas of the pneumatic motor 6 and controlling the pneumatic motor heat tracing device to start heating according to the detected temperature; the pressure transmitter 3 is used for monitoring the inlet natural gas pressure value of the pneumatic motor 6.
The pneumatic motor heat tracing device adopts an electric tracing band 5 which is wound on the outer wall of the cooling high-pressure natural inlet 4.
The screen 8 is arranged in the innermost tank body, and the high-pressure natural gas enters the bottom of the innermost tank body, passes through the screen 8 and then enters the downstream pneumatic motor 6 at the upper part.
And the expanded low-pressure natural gas enters an interlayer between the innermost tank body and the outermost tank body, and enters a downstream pipe network after heat exchange.
After natural gas with the inlet pressure of 0.8MPa and the temperature of about 20 ℃ is filtered, the temperature is reduced to about 15 ℃, and the natural gas enters a pneumatic motor. After the pressure is reduced to 0.1 MPa, the temperature is about 0 ℃, the mixture enters an interlayer for heat exchange, the temperature is raised to about 5 ℃, and the mixture enters a downstream gas pipe network.
It can be understood that the innermost space of the double-layer filtering tank device is a screen, the outer side of the screen is inlet high-pressure natural gas, and the interlayer on the outer side is outlet low-pressure natural gas. The withstand voltage of jar body is designed according to the gas standard, outmost have low pressure low temperature natural gas to carry out the heat transfer with the natural gas of importing through normal atmospheric temperature high pressure natural gas export 10 behind low temperature low pressure natural gas export 7 and low temperature low pressure natural gas entry 11 in proper order in jar internal portion, the low pressure natural gas that heaies up after the heat transfer enters into low reaches pipe network through intensification low pressure natural gas export 1, simultaneously, high pressure natural gas is after cooling and screen cloth 8, through cooling high pressure natural export 12, cooling high pressure natural import 4 enters into pneumatic motor 6 and carries out the inflation work. In the process, the oil impurities which are easy to adhere to the motor outlet are condensed and purified before entering the motor, so that the time for gradually scaling the impurities at the motor outlet until the motor outlet is completely blocked can be prolonged;
the screen cloth 8 is placed in the jar of volume grow, makes the natural gas flow speed reduce at jar internal, and the cooling makes low temperature grease adhere to at the screen cloth simultaneously, and its viscidity of grease after the adhesion is great, adsorbs solid particle class impurity more easily, makes the natural gas filter more high-efficient than original single physics screen cloth.
The information display device can display transmitted pressure and temperature data, and the temperature transmitter is used for monitoring the temperature of the natural gas at the inlet of the pneumatic motor. The service life of the pneumatic motor is prevented from being influenced by the low temperature of cold circulation. And when the temperature is lower than the set parameters, starting the electric tracing band to raise the temperature. The energy source of the electric tracing band is derived from the natural gas pressure energy of the pipe network to generate surplus electric power, the electric tracing band is not started when the equipment normally works, and the electric tracing band is only used in low-temperature climates or when the temperature of outlet natural gas is excessively reduced due to the fact that the pressure of the natural gas is excessively reduced. The pressure transmitter is used for monitoring the pressure of natural gas passing through the rear opening of the screen, and is compared with the normal working pressure. When the pressure is too low, the screen is basically saturated, and the impurities in the tank body are too much and need to be replaced; when the pressure is too high, the impurity blocking condition may occur at the low-temperature and low-pressure natural gas outlet, and the natural gas outlet needs to be cleaned.
The sewage outlet 9 can be opened periodically, the impurity condition can be observed, the impurity components of the natural gas can be judged, meanwhile, the frequency of replacing the screen can be reduced, and the time and the cost are saved. When the maintenance is needed, the drain outlet can be used as a pressure relief outlet to play a safety role.
When the equipment normally works, the temperature transmitter is continuously kept in a certain indication range, and if the temperature is too high or too low, the pressure energy power generation system is proved to be abnormal and needs to be overhauled.
When the equipment works normally, the pressure transmitter should be kept in a certain indication range continuously, and if the pressure is too high or too low, the filter is proved to need to be maintained.
Before maintenance, the whole set of pressure energy power generation equipment is stopped, and front and rear valves of a gas pipe network are closed. And opening a sewage outlet 9, detecting the concentration of the natural gas, then replacing the screen 8, and simultaneously cleaning the inner wall of the tank body.
The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a impurity removal device that is used for leading cooling postposition of pipe network natural gas pressure energy electricity generation to heat up which characterized in that: comprises a double-layer filtering tank device with an interlayer, an information display device and a pneumatic motor heat tracing device;
the double-layer filtering tank device comprises a double-layer tank body, a heating low-pressure natural gas outlet (1), a screen (8), a normal-temperature high-pressure natural gas inlet (10), a low-temperature low-pressure natural gas inlet (11) and a cooling high-pressure natural outlet (12), wherein the screen (8) is arranged in an inner cavity of the double-layer tank body, and the normal-temperature high-pressure natural gas inlet (10) and the cooling high-pressure natural outlet (12) are respectively arranged at the lower part and the upper part of the double-layer tank body and are communicated with the inner cavity of the double; the heating low-pressure natural gas outlet (1) and the low-temperature low-pressure natural gas inlet (11) are respectively arranged at the upper part and the lower part of the double-layer tank body and are communicated with the interlayer of the double-layer tank body; the information display device is connected and arranged on the outer wall of the cooling high-pressure natural outlet and used for monitoring the real-time air pressure and temperature of the inlet natural gas temperature of the pneumatic motor (6); the pneumatic motor heat tracing device is arranged on the outer wall of the cooling high-pressure natural inlet (4) of the pneumatic motor (6) and used for adjusting the temperature of the inlet natural gas of the pneumatic motor (6) in real time.
2. The impurity removing device for the preposed cooling and postposition heating of the pipe network natural gas pressure energy power generation as claimed in claim 1, which is characterized in that: the screen (8) is made of metal or engineering plastics.
3. The impurity removing device for the pre-cooling post-heating of the natural gas pressure energy power generation of the pipe network as claimed in claim 1, wherein the diameter of the outermost tank body of the double-layer tank body is DN200 ~ 300 and the height is 600 ~ 800mm, and the diameter of the innermost tank body of the double-layer tank body is DN150 ~ 200 and the height is 500 ~ 700 mm.
4. The impurity removing device for the preposed cooling and postposition heating of the pipe network natural gas pressure energy power generation as claimed in claim 3, which is characterized in that: and a sewage outlet (9) communicated with the inner cavity of the innermost tank body is formed at the bottom of the double-layer tank body.
5. The impurity removing device for the preposed cooling and postposition heating of the pipe network natural gas pressure energy power generation as claimed in claim 4, which is characterized in that: the sewage draining outlet (9) is provided with an equal-diameter ball valve.
6. The impurity removing device for the preposed cooling and postposition heating of the pipe network natural gas pressure energy power generation as claimed in claim 1, which is characterized in that: the information display device comprises a temperature transmitter (2) and a pressure transmitter (3), wherein the temperature transmitter (2) is used for monitoring the inlet natural gas temperature of the pneumatic motor (6) and controlling the pneumatic motor heat tracing device to start heating according to the detected temperature; the pressure transmitter (3) is used for monitoring the inlet natural gas pressure value of the pneumatic motor (6).
7. The impurity removing device for the preposed cooling and postposition heating of the pipe network natural gas pressure energy power generation as claimed in claim 1, which is characterized in that: the pneumatic motor heat tracing device adopts an electric heat tracing band and is wound on the outer wall of the cooling high-pressure natural inlet (4).
8. The impurity removing device for the preposed cooling and postposition heating of the pipe network natural gas pressure energy power generation as claimed in claim 1, which is characterized in that: the pneumatic motor heat tracing device is powered by a power generation device driven by a pneumatic motor (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920063665.5U CN209925037U (en) | 2019-01-15 | 2019-01-15 | Impurity removing device for preposed cooling and postpositional heating of pipe network natural gas pressure energy power generation |
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| CN201920063665.5U CN209925037U (en) | 2019-01-15 | 2019-01-15 | Impurity removing device for preposed cooling and postpositional heating of pipe network natural gas pressure energy power generation |
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| CN209925037U true CN209925037U (en) | 2020-01-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723511A (en) * | 2019-01-15 | 2019-05-07 | 广东众通利华能源科技有限公司 | It generates electricity the exclusion device of preposition cooling postposition heating for pipe network pressure energy of natural gas |
-
2019
- 2019-01-15 CN CN201920063665.5U patent/CN209925037U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723511A (en) * | 2019-01-15 | 2019-05-07 | 广东众通利华能源科技有限公司 | It generates electricity the exclusion device of preposition cooling postposition heating for pipe network pressure energy of natural gas |
| CN109723511B (en) * | 2019-01-15 | 2023-10-24 | 佛山市寰晟通新能源科技有限公司 | Impurity removing device for preposed cooling and postpositive heating of pipe network natural gas pressure energy power generation |
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Effective date of registration: 20220928 Address after: 528313 Room 307, Floor 3, Block 22, Shunlian Machinery City, No. 18, Xingye 4th Road, Guanglong Industrial Park, Chihua Community, Chencun Town, Shunde District, Foshan City, Guangdong Province Patentee after: Foshan huanshengtong New Energy Technology Co.,Ltd. Patentee after: SOUTH CHINA University OF TECHNOLOGY Patentee after: GUANGZHOU LAILUN SPECIAL EQUIPMENT Co.,Ltd. Address before: 528314 Shunde District, Foshan City, Guangdong Province, Chencun Town, Chihua Residential Committee Guanglong Industrial Park, 18 Xingye Road, Shunlian Machinery City, 22 401 rooms Patentee before: GUANGDONG ZHONGTONGLIHUA ENERGY TECHNOLOGY Co.,Ltd. Patentee before: SOUTH CHINA University OF TECHNOLOGY Patentee before: GUANGZHOU LAILUN SPECIAL EQUIPMENT Co.,Ltd. |
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