JP2014190753A - Method and system for quickly detecting clogging of piping or adhesion of deposit to wall surface, and application thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and a piping system which are capable of quickly detecting clogging of piping or adhesion of deposits to a wall surface in the piping during flow of a fluid in the piping.SOLUTION: Piping is provided with a plurality of vibration detecting sensors in a plurality of positions on an outer peripheral surface of the piping and a vibration detector which measures vibrations detected by respective vibration detecting sensors and compares the measured vibration values with vibration values measured without clogging of the piping and deposits on a wall surface in the piping to detect the change of vibration, whereby clogging of the piping or adhesion of deposits to the wall surface in the piping during flow of a fluid in the piping can be quickly detected.

Description

  The present invention relates to a method and system for quickly detecting clogging in a pipe generated when a fluid is flowing in a pipe, adhesion of a deposit to a wall surface in the pipe, or the position of the clogging or adhesion, and pipe TECHNICAL FIELD The present invention relates to a method and system for removing deposits adhering to an inner clog or a wall surface in a pipe, and use of the system.

  Conventionally, in a technology for gasifying hydrous biomass (shochu residue, egg-laying chicken dung, etc.) with supercritical water, the heat of the product obtained by gasifying biomass with supercritical water is used to make supercritical water. A supercritical water gasification system including a double-pipe heat exchanger that heats hydrous biomass gasified in the above or a slurry body of the biomass has been developed (see, for example, Patent Documents 1 and 2).

JP 2007-271146 A JP 2009-242697 A

However, in the supercritical water gasification system as described above, a double-pipe heat exchanger is made of fine powder of activated carbon used as a catalyst during gasification or tar generated during gasification. A blockage may occur between the outer tube and the inner tube in the heavy tube.
The present invention has been made in view of the above problems, and shows the position of clogging in a pipe generated when a fluid is flowing in a pipe or adhesion of an adhering substance to a wall surface in the pipe, or the position of the clogging or adhesion. Provided are a method and a piping system capable of quickly detecting, a method and a piping system capable of quickly removing clogging in a pipe or a deposit attached to a wall surface in the pipe, and an application of the pipe system The purpose is to do.

  In order to solve the above-mentioned problems, the method according to the present invention is a method for detecting clogging in a pipe or adhesion of a deposit on a wall surface in the pipe, which is provided at a plurality of locations on the outer peripheral surface of the pipe. A process for measuring vibrations detected by a plurality of vibration detection sensors, each measured vibration value, and a vibration value measured when there is no clogging in the pipe or adhesion of deposits on the wall in the pipe And analyzing a change in vibration.

  Further, the method according to the present invention is a method for removing clogs in a pipe or deposits adhering to a wall surface in the pipe, which are detected by a plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the pipe. Change of vibration by comparing each measured vibration value with each measured vibration value and the vibration value measured when there is no clogging in the pipe or adhesion of deposits to the wall in the pipe And a step of injecting a chemical from the upstream of the vibration detection sensor in which the change in vibration is detected when the change in vibration is detected by analyzing the change in vibration.

  Furthermore, the method according to the present invention is a method for detecting the position of clogging in a pipe or the adhesion of a deposit on a wall surface in the pipe, and periodically applying vibration / impact on the outer peripheral surface of the pipe through which the fluid flows. Alternatively, a step of adding at random, a step of measuring vibrations detected by a plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the pipe due to vibration / impact applied to the pipe, and each vibration value measured And a step of analyzing a change in vibration by comparing with a vibration value measured when clogging in the pipe or adhesion of a deposit to the wall surface in the pipe does not occur.

  Further, the method according to the present invention is a method for removing clogs in a pipe or deposits adhering to a wall surface in the pipe, and periodically or randomly applying vibration / impact to the outer peripheral surface of the pipe through which the fluid flows in the pipe. An adding step, a step of measuring vibrations detected by a plurality of vibration detection sensors installed at a plurality of locations on the outer peripheral surface of the pipe due to vibration / impact applied to the pipe, each measured vibration value, and piping The process of analyzing the vibration change by comparing the vibration value measured when there is no clogging or adhesion of deposits to the wall in the pipe, and the vibration change by analyzing the vibration change And a step of injecting a chemical from the upstream of the vibration detection sensor in which a change in vibration is detected.

  The vibration detection sensor is, for example, an optical fiber.

  The piping system according to the present invention measures and measures the piping through which the fluid flows, the plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the piping, and the vibration detected by each vibration detection sensor. A vibration detection device that detects a change in vibration by comparing each vibration value with a vibration value measured when the pipe is not clogged or a deposit is not attached to a wall surface in the pipe.

  Further, the piping system according to the present invention is provided at a plurality of locations on the outer peripheral surface of the pipe, a pipe through which fluid flows in the pipe, vibration / impact means for periodically or randomly applying vibration or shock to the outer peripheral surface of the pipe. The vibrations detected by the vibration detection sensors are respectively measured by the vibrations or shocks applied to the pipe by the vibration / impact means, and the measured vibration values and clogging in the pipe And a vibration detection device that detects a change in vibration by comparing with a vibration value measured when no deposits adhere to the wall surface in the pipe.

  The vibration / impact means is, for example, an ultrasonic oscillator provided with an ultrasonic transducer. The vibration detection sensor is, for example, an optical fiber.

  In the above piping system, the pipe is provided with a chemical injection part on the upstream side of each vibration detection sensor, and the vibration change is detected when the vibration detection device detects the vibration change by analyzing the vibration change. It is good also as inject | pouring the chemical | medical solution for removing clogging and a deposit | attachment from the said chemical | medical solution injection | pouring part of the upstream of the vibration detection sensor in which this was detected.

  In addition, when the said piping is a double tube which consists of an inner tube and an outer tube, suppose that a chemical | medical solution injection | pouring part is provided in an outer tube.

  The biomass gasification system using supercritical water according to the present invention uses the non-metallic catalyst suspended in a suspension of non-metallic catalyst suspended in biomass as a catalyst at a temperature of 374 ° C. or higher, and 22. A reactor for hydrothermally treating the biomass under conditions of a pressure of 1 MPa or more, a means for supplying the suspension to the reactor, and an exhaust gas containing product gas and water discharged from the reactor A double-tube heat exchanger that preheats the suspension using the heat of the plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the outer tube in the double-tube heat exchanger; Measure the vibration detected by each vibration detection sensor and compare each measured vibration value with the vibration value measured when there is no clogging in the piping or adhesion of deposits to the wall in the piping And a vibration detection device that detects a change in vibration, Obtain.

  Moreover, the biomass gasification system using supercritical water according to the present invention uses the nonmetallic catalyst suspended in a suspension in which a nonmetallic catalyst is suspended in biomass as a catalyst, a temperature of 374 ° C. or higher, and A reactor for hydrothermally treating the biomass under a pressure condition of 22.1 MPa or more, a means for supplying the suspension to the reactor, and a discharge containing the product gas and water discharged from the reactor A double-pipe heat exchanger that preheats the suspension using the heat of the object, and vibration that periodically or randomly applies vibration / impact to the outer peripheral surface of the outer pipe in the double-pipe heat exchanger / Vibration means, a plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the outer tube, and vibration detected by each vibration detection sensor due to vibration / impact applied by the vibration / impact means to the outer tube And measure each vibration value And a vibration detecting device for detecting a change in vibration by comparing the measured vibration value when the adhesion of deposit to the wall surface of the clogging or the pipe in the pipe does not occur.

  When the outer tube of the double-pipe heat exchanger has a chemical injection part on the upstream side of each vibration detection sensor, and the vibration detection device detects a change in vibration by analyzing the change in vibration. Alternatively, a chemical solution for removing clogging or deposits may be injected from a chemical solution injection portion on the upstream side of the vibration detection sensor in which a change in vibration is detected.

  ADVANTAGE OF THE INVENTION According to this invention, the method which can detect rapidly the clogging in the pipe | tube produced when flowing the fluid in a pipe | tube, the adhesion of the deposit | attachment to the wall surface in a pipe | tube, or the position of the clogging or adhesion, and It is possible to provide a piping system, a method and a piping system capable of quickly removing clogging in the piping or deposits attached to the wall surface in the piping, and use of the piping system.

In one Embodiment of this invention, it is a figure which shows schematic structure of a piping system. In one Embodiment of this invention, it is a figure which shows schematic structure of the biomass gasification system by supercritical water.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The objects, features, advantages, and ideas of the present invention will be apparent to those skilled in the art from the description of the present specification, and those skilled in the art can easily reproduce the present invention from the description of the present specification. it can. DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments and drawings of the invention described below show preferred embodiments of the present invention and are shown for illustration or explanation, and are not intended to limit the present invention thereto. Absent. It will be apparent to those skilled in the art that various modifications can be made based on the description of the present specification within the spirit and scope of the present invention disclosed herein.

== Configuration of piping system ==
In the piping system according to the present invention, when clogging occurs in the piping through which the fluid flows or when deposits adhere to the wall surface in the piping, the clogging or adhesion can be detected quickly, or the clogging or adhesion can be detected. It is useful for detecting the position quickly and removing clogs and deposits quickly and efficiently. In the following embodiments, the piping in the piping system is a double piping composed of an inner tube and an outer tube, and the fluid flowing between the outer tube and the inner tube causes clogging or formation of deposits. However, even if the pipe is made of a single pipe, multiple pipes consisting of three or more pipes (however, the fluid flowing in the outermost space may cause clogging or form deposits) It may be limited to the case of letting it go.)

  In FIG. 1, schematic structure of the piping system demonstrated as one Embodiment of this invention is shown. As shown in FIG. 1, a piping system 100 according to the present invention includes a piping 10, a vibration / impact device 20, a plurality of vibration detection sensors 30, a vibration measuring instrument 40, a vibration analysis device 50, and the like. The pipe 10 is composed of an outer pipe 1 and an inner pipe 2. The vibration / impact device 20 applies constant vibration / impact to the outer peripheral surface of the pipe 10 (outer tube 1) periodically or randomly. As the vibration / impact device 20, for example, an existing oscillator including an ultrasonic vibrator, a crystal vibrator, or the like can be used. The vibration / impact device 20 may be provided at any position on the outer peripheral surface of the pipe 10, or one or a plurality of devices may be installed. The outer tube 1 of the pipe 10 is made of a material that can easily transmit vibration / impact by the vibration / impact device 20, for example, metal.

  The vibration detection sensor 30 is a sensor that detects vibration / impact applied to the pipe 10 (outer pipe 1) by the vibration / impact device 20. In the present embodiment, an optical fiber is used as the vibration detection sensor 30 and is spirally wound around the outer peripheral surface of the pipe 10. However, instead of the optical fiber, an existing sensor such as an acceleration pickup is used for the pipe 10. You may install in an outer peripheral surface. The vibration detection sensors 30 may be provided at a plurality of locations on the outer peripheral surface of the pipe 10 at regular intervals. However, the vibration detection sensor 30 may be a portion where clogging is likely to occur or a portion where deposits are likely to adhere, such as a bent portion of a pipe or a pipe. A plurality of locations may be provided at the welded portion.

  The vibration measuring instrument 40 is a device that measures vibration (for example, amplitude, frequency, etc.) detected by each vibration detection sensor 30. In the present embodiment, one vibration measuring device 40 is provided for a plurality of vibration detection sensors 30, but the vibration measuring device 40 may be provided for each vibration detection sensor 30. The vibration analysis device 50 uses the vibration value (for example, amplitude value or frequency value) measured by the vibration measuring instrument 40 when the pipe is not clogged or the adhering matter is not attached to the wall surface in the pipe. The change in vibration is analyzed by comparing with the measured vibration value. When the vibration analysis device 50 detects a change in vibration by analysis, for example, “the position of the vibration detection sensor 30 that has detected the change in vibration” and “in the pipe (between the outer pipe and the inner pipe). In the flow path) or a deposit on the wall in the pipe (the wall between the outer pipe and the inner pipe). Report to the administrator, for example, by sounding a warning sound. In the present embodiment, the vibration measuring instrument 40 and the vibration analyzing apparatus 50 are provided in the piping system 100. However, the functions of the vibration measuring instrument 40 and the vibration analyzing apparatus 50, that is, the vibration / impact apparatus 20 are the same. The vibration detected by each vibration detection sensor 30 is measured by vibration or impact applied to the pipe 10, and each measured vibration value is not clogged in the pipe or attached to the wall in the pipe. In some cases, a vibration detection device having a function of detecting a change in vibration by comparing the measured vibration value may be provided.

  As described above, the piping system 100 according to the present invention includes the vibration / impact device 20, the plurality of vibration detection sensors 30, the vibration measuring instrument 40, the vibration analyzing device 50, and the like in the piping 10, thereby allowing fluid to flow into the pipe. In addition to being able to quickly detect clogging in pipes or deposits adhering to wall surfaces in pipes, it is possible to detect (specify) the position of clogging or adhesion. Become.

  In the above-described embodiment, the vibration / impact device 20 is provided in the piping system 100, and vibration / impact applied to the pipe 10 (outer tube 1) by the vibration / impact device 20 is detected by the vibration detection sensor 30. However, the vibration detection sensor 30 detects the vibration applied to the outer tube 1 by the flow of the fluid flowing through the flow path between the outer tube 1 and the inner tube 2 without providing the vibration / impact device 20 in the piping system 100. It is good also as detecting by.

  In the present embodiment, as shown in FIG. 1, the chemical solution is located upstream of each vibration detection sensor 30 (upstream with respect to the fluid flow) with respect to the outer pipe 1 in the pipe 10 of the pipe system 100. When the injection unit 3 is provided, and the vibration analysis device 50 detects a change in vibration (abnormal vibration), that is, in the flow path between the inner tube 2 and the outer tube 1, a nonmetallic catalyst ( For example, when the detection of clogging due to fine powder of activated carbon), tar generated during the gasification reaction, or attachment of deposits to the wall surface of the pipe in the flow path (where the change in vibration was observed ( The chemical solution for removing clogging and deposits from the chemical solution injection part 3 upstream of the vibration detection sensor 30 provided in the portion where the vibration change is detected to the flow path between the outer tube and the inner tube. Be able to inject That. The chemical solution may be injected by the vibration analyzer 50 transmitting a signal for injecting the chemical solution to the chemical solution injector.

  As described above, in the piping system 100 according to the present invention, when the chemical solution injection unit 3 is provided in the piping 10 and clogging in the piping or adhesion of deposits on the wall surface in the piping is detected, the chemical solution is piped. By injecting into the pipe, it becomes possible to quickly remove clogging in the pipe and adhesion of deposits to the wall surface in the pipe. Further, since the chemical solution is injected at a pinpoint, deposits and the like can be efficiently removed with a small amount of the chemical solution, and thus corrosion of the pipe metal by the chemical solution can be suppressed. In the above-described piping system 100, at least the inner pipe 2 is made of a material such as metal having excellent heat conductivity and heat resistance, so that the above-described piping system 100 is used as a double-pipe heat exchange system. be able to.

== Method of detecting clogging in piping or adhesion of deposits on wall surface in piping, or position of clogging or deposition, and method of removing clogging or deposits ==
Next, a method for detecting (specifying) the clogging in the pipe or the adhering of the adhering matter to the wall surface in the pipe or the position of the clogging or adhering generated when the fluid is flowing in the pipe, and the clogging or the above A method for removing the deposit will be described.
As shown in FIG. 1, light that is wound around a plurality of locations on the outer peripheral surface of the pipe 10 by applying constant vibration / impact to the outer peripheral surface of the pipe 10 (outer pipe 1) through which the fluid flows in the pipe periodically or randomly. The vibration measuring device 40 measures the vibration detected by each of the fibers 30. The measured vibration values detected by the optical fibers 30 are the vibration values measured by the vibration analysis device 50 when the pipe is not clogged or attached to the wall in the pipe. Comparisons are made and vibration changes are analyzed. When a vibration change is detected (determined to have occurred) by analysis of the vibration change, the position of the optical fiber 30 where the vibration change has been detected by the vibration analysis device 50 and in the pipe ( As described above, clogging in the flow path between the outer pipe and the inner pipe) and adhesion of deposits to the wall surface in the pipe (the wall surface between the outer pipe and the inner pipe) occur. Reported to the person.

  By performing the treatment as described above, it is possible not only to quickly detect clogging in the piping or adhesion of deposits to the wall surface in the piping, but also to clogging or attachment. The position of the kimono can be quickly detected (specified).

  In the above-described embodiment, the vibration / impact device 20 is provided in the piping system 100, and the vibration / impact device 20 applies constant vibration / impact to the pipe 10 (outer tube 1) periodically or randomly to vibrate. The vibration detected by the detection sensor (optical fiber) 30 is measured by the vibration measuring instrument 40. However, the vibration / impact by the vibration / impact device 20 is not applied to the pipe 10 (outer pipe 1). The vibration detection sensor 30 detects the vibration applied to the outer pipe 1 by the flow of the fluid flowing through the flow path between the inner pipe 2 and the vibration measuring instrument 40 measures the vibration detected by the vibration detection sensor 30. Also good.

  Further, when a change in vibration is detected by analyzing the change in vibration, that is, in the flow path between the inner tube 2 and the outer tube 1, fine powder of a nonmetallic catalyst (for example, activated carbon), gasification reaction When clogging due to tar or the like generated at times, or adhesion of deposits to the wall surface in the pipe in the flow path is detected, the upstream of the optical fiber 30 in which a change in vibration is detected by a chemical injection device or the like is detected. It is good also as inject | pouring the chemical | medical solution for removing clogging and a deposit | attachment from the chemical | medical solution injection port 3. FIG. By performing the treatment in this way, it becomes possible to quickly remove clogging in the pipe and adhering matter adhering to the wall surface in the pipe generated when a fluid is flowing in the pipe. Further, since the chemical solution is injected at a pinpoint, deposits and the like can be efficiently removed with a small amount of the chemical solution, and thus corrosion of the pipe metal by the chemical solution can be suppressed.

== Utilization of piping system according to the present invention ==
Next, an example in which the piping system 100 as described above is used as a double pipe heat exchanger system (double pipe heat exchanger) will be described below.
FIG. 2 is a diagram showing a schematic configuration of a biomass gasification system using supercritical water described as an embodiment of the present invention. As shown in FIG. 2, a biomass gasification system 200 using supercritical water according to the present invention includes a double-pipe heat exchanger system 100, a regulating tank 110, a crusher 120, a supply pump 130, a preheater 140, and a heater. 141, a reactor 150, a heater 151, a cooler 160, a decompressor 170, a gas-liquid separator 180, a gas tank 181, a catalyst recovery unit 190, and the like.

  The adjustment tank 110 is a tank that mixes biomass, water, a nonmetallic catalyst, and the like while adjusting the mixing amount of water and a nonmetallic catalyst according to the type, amount, moisture content, and the like of the biomass. The input biomass and activated carbon and the input water are mixed as necessary, and the activated carbon is suspended in biomass (or biomass solution) to prepare a gasification raw material (suspension). Examples of the biomass include hydrous biomass such as shochu residue and egg-collecting chicken manure. As the non-metallic catalyst, for example, activated carbon, zeolite, and a mixture thereof can be used. However, it is preferable to use a powder having an average particle size of 200 μm or less, and it is more preferable to be porous.

  The crusher 120 crushes the biomass in the suspension suspended in the adjustment tank 110 so as to have a uniform size in advance (preferably an average particle size of 500 μm or less, more preferably an average particle size of 300 μm or less). It is a device for.

The reactor 150 is an apparatus that gasifies the biomass in the suspension with supercritical water using activated carbon suspended in the suspension obtained by crushing the biomass in the crusher 120 as a catalyst. Biomass gasification with supercritical water is performed by hydrothermal treatment using the nonmetallic catalyst under conditions of a temperature of 374 ° C. or higher and a pressure of 22.1 MPa or higher. By treating the biomass with supercritical water in this way, the biomass can be decomposed and a fuel gas such as hydrogen gas, methane, ethane, or ethylene can be generated.
As the reactor 150 described above, for example, a tubular reactor, a fluidized bed reactor, or the like can be used.

  The supply pump 130 is a device that supplies a suspension obtained by crushing biomass with the crusher 120 to the gasification reactor 150. The supply pump 130 is not particularly limited as long as it is a device that can supply a suspension obtained by crushing biomass. For example, a high-pressure pump or a Mono pump can be used.

The preheater 140 is a device that preheats a suspension obtained by crushing biomass supplied from the supply pump 130 to the reactor 150 to a predetermined temperature.
The cooler 160 is an apparatus for cooling the effluent discharged from the reactor 150 (product gas, ash and activated carbon suspended in water). The cooler 160 is, for example, a cooler.
The decompressor 170 is a device that reduces the pressure of the exhaust discharged from the reactor 150.

The gas-liquid separator 180 is an apparatus that separates the exhaust discharged from the reactor 150 into a gas component containing a product gas (combustion gas or the like) and a liquid component in which ash and activated carbon are suspended in water. .
The gas tank 181 is a container (preferably a pressure resistant container) that stores the gas component (product gas) separated by the gas-liquid separator 180.

  The heater 151 burns part of the generated gas (fuel gas) stored in the gas tank 181 or fuel gas (for example, LPG) in a gas containing oxygen to heat the reactor 150 and pulverize the biomass. An apparatus for heating the suspension to a predetermined temperature. The heater 141 burns a part of the generated gas (fuel gas) stored in the gas tank 181 or fuel gas (for example, LPG) in a gas containing oxygen to heat the preheater 140, thereby An apparatus for heating the pulverized suspension to a predetermined temperature. The heaters 141 and 151 are existing devices that burn and heat fuel gas, such as a burner, for example.

  The catalyst recovery unit 190 is a device that separates and recovers the nonmetallic catalyst from the liquid component separated by the gas-liquid separator 180. As the catalyst recovery unit 190, for example, an apparatus that separates ash, nonmetallic catalyst, and water in a liquid component by using a sedimentation rate (termination rate) between a nonmetallic catalyst and ash may be used. The ash content in the liquid component, the nonmetallic catalyst, and the existing solid-liquid separator that separates the water into the solid component and the liquid component, and the ash content in the separated solid component and the nonmetallic catalyst are sieved. You may use the combination with the existing sieve which isolate | separates.

  The double-pipe heat exchanger system 100 includes a product gas generated by hydrothermal treatment in the reactor 150, water, and the like, and uses the heat of the exhaust discharged from the reactor 150 to make the reactor 150 This is a device for preheating the suspension obtained by pulverizing the biomass to be hydrothermally treated in the reactor. A suspension obtained by pulverizing biomass flows in the flow path in the inner pipe 2 of the double-pipe heat exchanger system 100, and the reactor between the inner pipe 2 and the outer pipe 1 has a reactor. The waste discharged from 150 is flowing. As mentioned above, in the flow path between the inner tube 2 and the outer tube 1, when clogging occurs in fine powder of a nonmetallic catalyst (for example, activated carbon), tar generated during the gasification reaction, When deposits adhere to the wall surface in the flow path, the vibration analysis device 50 detects a change in vibration and specifies the position of clogging or deposits. Further, when the chemical injection port 3 is provided in the pipe 10 in the double-pipe heat exchanger system 100, clogging or adhering matter is generated from the chemical injection port 3 upstream of the optical fiber 30 in which a change in vibration is detected. A chemical solution (for example, a hydrogen peroxide solution) for removing the water is injected.

  As described above, the biomass gasification system 200 using supercritical water is provided with the double pipe heat exchanger system 100, so that clogging in the pipe 10 in the double pipe heat exchanger system 100 generated during operation can be prevented. It becomes possible to quickly detect (specify) the position where the deposits adhere to the wall surface in the pipe 10 that occurred during the operation. Further, in the case where the chemical injection port 3 is provided in the pipe 10, the chemical solution for removing clogging and deposits from the chemical injection port 3 upstream of the optical fiber 30 where the change in vibration is detected is pinpointed. Since it can be injected, clogging and deposits in the pipe 10 can be removed quickly and efficiently. Thus, the reliability of the system is improved, and continuous operation and stable operation can be achieved.

In the present embodiment, as shown in FIG. 2, a suspension obtained by pulverizing biomass using the heat of exhaust gas obtained by burning the generated gas or fuel gas in the gas tank 181 by the heater 141. A heat exchanger for heating the liquid is provided in the reactor 150.
Further, in the present embodiment, the suspension in which the nonmetallic catalyst is suspended in the biomass in the adjustment tank 110 is processed by the crusher 120, and the double-pipe heat exchanger system 100 and the preheater are supplied by the supply pump 130. 140 is supplied to the reactor 150 sequentially, but the suspension obtained by suspending the nonmetallic catalyst in the biomass crushed by the crusher 20 is supplied to the double-pipe heat exchanger system 100 and the supply pump 30. You may supply to the reactor 150 through the preheater 140 in order.
Furthermore, in the above-described embodiment, the crusher 20 is provided. However, when a biomass slurry is used as the gasification raw material, the crusher 20 is not provided in the biomass gasification system 200 using supercritical water. Also good.

DESCRIPTION OF SYMBOLS 1 Outer pipe | tube, 2 Inner pipe | tube, 3 chemical | medical solution injection | pouring part, 10 piping, 20 vibration / impact apparatus, 30 vibration detection sensor, 40 vibration measuring instrument, 50 vibration analysis apparatus, 100 piping system (double pipe type heat exchanger system) , 110 adjustment tank, 120 crusher, 130 feed pump, 140 preheater, 141 heater, 150 reactor, 151 heater, 160 cooler, 170 decompressor, 180 gas-liquid separator, 181 gas tank, 190 catalyst recovery unit , 200 Biomass gasification system using supercritical water

Claims (14)

A method for detecting clogging in a pipe or adhesion of a deposit on a wall surface in the pipe,
Measuring each of the vibrations detected by a plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the pipe;
Comparing each measured vibration value with the vibration value measured when clogging in the piping or adhesion of deposits to the wall surface in the piping has not occurred, and analyzing the change in vibration;
A method comprising the steps of: A method of removing clogs in a pipe or deposits attached to a wall surface in the pipe,
Measuring each of the vibrations detected by a plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the pipe;
Comparing each measured vibration value with the vibration value measured when clogging in the piping or adhesion of deposits to the wall surface in the piping has not occurred, and analyzing the change in vibration;
A step of injecting a chemical from the upstream of the vibration detection sensor in which the change in vibration is detected when the change in vibration is detected by analyzing the change in vibration;
A method comprising the steps of: A method for detecting the position of clogging in a pipe or the adhesion of a deposit on a wall in the pipe,
Periodically or randomly applying vibration / impact to the outer peripheral surface of the pipe through which the fluid flows;
A step of measuring vibrations detected by a plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the pipe by vibration / impact applied to the pipe;
Comparing each measured vibration value with the vibration value measured when clogging in the piping or adhesion of deposits to the wall surface in the piping has not occurred, and analyzing the change in vibration;
A method comprising the steps of: A method of removing clogs in a pipe or deposits attached to a wall surface in the pipe,
Periodically or randomly applying vibration / impact to the outer peripheral surface of the pipe through which the fluid flows;
A step of measuring vibrations detected by a plurality of vibration detection sensors installed at a plurality of locations on the outer peripheral surface of the pipe by vibration / impact applied to the pipe;
Comparing each measured vibration value with the vibration value measured when clogging in the piping or adhesion of deposits to the wall surface in the piping has not occurred, and analyzing the change in vibration;
A step of injecting a chemical from the upstream of the vibration detection sensor in which the change in vibration is detected when the change in vibration is detected by analyzing the change in vibration;
A method comprising the steps of:   The method according to claim 1, wherein the vibration detection sensor is an optical fiber. A pipe through which fluid flows,
A plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the pipe;
Measure the vibration detected by each vibration detection sensor, and compare each measured vibration value with the vibration value measured when there is no clogging in the pipe or adhesion of deposits to the wall in the pipe. A vibration detection device that detects changes in vibration,
Piping system with A pipe through which fluid flows,
Vibration / impact means for periodically or randomly applying vibration or shock to the outer peripheral surface of the pipe;
A plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the pipe;
The vibration / impact means measures the vibration detected by each vibration detection sensor due to the vibration or impact applied to the pipe, and the measured vibration value and clogging in the pipe or the deposits on the wall in the pipe. A vibration detection device that detects changes in vibration by comparing vibration values measured when adhesion has not occurred;
Piping system with   The piping system according to claim 7, wherein the vibration / impact means is an ultrasonic oscillator including an ultrasonic vibrator.   The piping system according to any one of claims 6 to 8, wherein the vibration detection sensor is an optical fiber. The pipe is provided with a chemical injection part on the upstream side of each vibration detection sensor,
When the vibration detection device detects a change in vibration by analyzing the change in vibration, for removing clogging or deposits from the chemical injection part on the upstream side of the vibration detection sensor in which the change in vibration is detected. The piping system according to any one of claims 6 to 9, wherein a chemical solution is injected. The pipe is a double pipe composed of an inner pipe and an outer pipe,
The piping system according to claim 10, wherein the chemical injection part is provided in the outer pipe. Hydrothermal treatment of the biomass under conditions of a temperature of 374 ° C. or higher and a pressure of 22.1 MPa or higher using the non-metallic catalyst suspended in a suspension of a non-metallic catalyst suspended in biomass as a catalyst And a reactor to
Means for supplying the suspension to the reactor;
A double-tube heat exchanger that preheats the suspension using the heat of the exhaust gas containing product gas and water discharged from the reactor;
A plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the outer tube in the double-tube heat exchanger;
Measure the vibration detected by each vibration detection sensor, and compare each measured vibration value with the vibration value measured when there is no clogging in the pipe or adhesion of deposits to the wall in the pipe. A vibration detection device that detects changes in vibration,
A biomass gasification system using supercritical water, comprising: Hydrothermal treatment of the biomass under conditions of a temperature of 374 ° C. or higher and a pressure of 22.1 MPa or higher using the non-metallic catalyst suspended in a suspension of a non-metallic catalyst suspended in biomass as a catalyst And a reactor to
Means for supplying the suspension to the reactor;
A double-tube heat exchanger that preheats the suspension using the heat of the exhaust gas containing product gas and water discharged from the reactor;
Vibration / impact means for periodically or randomly applying vibration / impact to the outer peripheral surface of the outer tube in the double-tube heat exchanger;
A plurality of vibration detection sensors provided at a plurality of locations on the outer peripheral surface of the outer tube;
The vibration / impact means measures the vibration detected by each vibration detection sensor by the vibration / impact applied to the outer pipe, and the measured vibration value and clogging in the pipe or deposits on the wall in the pipe A vibration detection device that detects a change in vibration by comparing the measured vibration value when no adhesion has occurred,
A biomass gasification system using supercritical water, comprising: The outer pipe in the double pipe heat exchanger is provided with a chemical injection part on the upstream side of each vibration detection sensor,
When the vibration detection device detects a change in vibration by analyzing the change in vibration, the chemical solution for removing clogging and deposits from the chemical solution injection portion on the upstream side of the vibration detection sensor in which the change in vibration is detected The biomass gasification system using supercritical water according to claim 12 or 13, wherein

Images