CN107062952B - A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement - Google Patents
A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement Download PDFInfo
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- CN107062952B CN107062952B CN201710075732.0A CN201710075732A CN107062952B CN 107062952 B CN107062952 B CN 107062952B CN 201710075732 A CN201710075732 A CN 201710075732A CN 107062952 B CN107062952 B CN 107062952B
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- flow
- phase flow
- phase
- heat exchanger
- stabilising arrangement
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0133—Auxiliary supports for elements for tubes or tube-assemblies formed by concentric strips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/28—Safety or protection arrangements; Arrangements for preventing malfunction for preventing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations
Abstract
The invention provides a kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement, bag sets telescopic two phase flow stabilising arrangement on heat exchanger fluid inlet tube and/or outlet, the two phase flow stabilising arrangement includes core body, the core body includes multiple concentric tubes and fin, and the fin connects adjacent concentric tube.The present invention has the passive two-phase flow stabilising arrangement of vibration and noise reducing function can be in the case of independent of external impetus or power supply, two-phase fluid is separated into liquid and gas, liquid phase is divided into small liquid group, gas phase is divided into minute bubbles, suppress the backflow of liquid phase, promote gas phase smooth outflow, play a part of regime flow, the effect with vibration and noise reducing.
Description
Technical Field
The invention relates to a two-phase flow heat exchange device and a stabilizing device thereof, in particular to a two-phase flow stabilizing device with the functions of weakening the vibration of a flow pipeline and reducing the noise level.
Background
Two-phase flow and instability phenomena widely exist in heat exchange devices, scientific research experimental devices and industrial production equipment, for example, a water hammer phenomenon caused by space expansion can be generated when fluid enters the heat exchange equipment, and heat exchange can be deteriorated due to a large amount of fluid. When the vapor and liquid phases of the two-phase working medium are not uniformly mixed and flow discontinuously, the large-size liquid mass can occupy the vapor mass space at a high speed, so that the two-phase flow is unstable, equipment and a pipeline are severely impacted, strong vibration and noise are generated, and the running safety of the equipment is seriously threatened. Most of the existing water hammer eliminating or relieving devices are oriented to a forced circulation loop, solve the problem of single-phase water hammer, and are concentrated in the industrial field of a water hammer-proof check valve, such as an impeller type water hammer-proof mute check valve (patent No.: ZL 200910214544.7), are provided with a fairing, a flow guide body, a spring and other complex structures, can not consider flow resistance factors, and solve the phenomenon of single-phase water hammer generated when the check valve is closed. For another example, CN101639374A discloses a multiphase flow rectifying device, in which a plurality of pipes are disposed, which is complicated in structure, material-consuming, and high in cost, and thus gradually fails to meet the requirements of energy saving and environmental protection.
In order to solve the problems, the invention provides a novel heat exchange device and a two-phase flow stabilizing device with a novel structure, thereby solving the problems.
Disclosure of Invention
The invention aims to provide a set of novel heat exchange device and a two-phase flow stabilizing device, which can weaken the vibration of a pipeline, reduce the noise level and simultaneously improve the heat exchange capacity when two-phase flow exists in the pipeline.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a two-phase flow shell-and-tube heat exchanger comprises a shell, wherein two ends of the shell are respectively provided with a seal head, at least one seal head is provided with a two-phase flow inlet pipe, a sleeve type two-phase flow stabilizing device is arranged on the flow inlet pipe, the two-phase flow stabilizing device comprises a core body, the core body comprises a plurality of concentric tubes and fins, and the fins are connected with the adjacent concentric tubes.
Preferably, the concentric tube and the rib are provided with a communication hole.
A telescopic two-phase flow stabilizer for disposition within a two-phase flow conduit includes a core comprising a plurality of concentric tubes and fins connecting adjacent ones of the concentric tubes to form a plurality of small flow passages between the concentric tubes and the fins.
Preferably, the concentric tube and the rib are provided with a communication hole.
Preferably, the distance between adjacent tubes is smaller and smaller from the center of the tubes outwards.
Preferably, the distance between adjacent tubes increases continuously from the center of the tube to the outside with decreasing magnitude.
Preferably, the cross-sectional area of the small flow path satisfies the following relationship:
A i, above ≤A i, below (2)
Wherein Ai is the flow area of the ith small flow passage and the unit is mm 2 (ii) a N is the number of small runners; eta A For area ratio, it is obtained by preferred experiments according to the size of the pipe and the flow conditions, see empirical formula 3, η A <1；A 0 Is the flow area of the pipeline in mm 2 . Wherein the mathematical meaning of the formula (1) is that the sum of the sectional areas of all the pipes is greater than or equal to eta of the pipe section A Doubling; the formula (2) is that the sectional area of the upper layer pipe is smaller than or equal to that of the lower layer pipe.
A two-phase flow pipe incorporating the stabilising arrangement as hereinbefore described, the stabilising arrangement being in a spaced arrangement within the pipe in which the length of the core structures, the spacing distance, satisfy the following relationship:
L i ≥L i,0 (4)
X i ≤X i,0 (5)
in the formula, L i Is the length of the ith core in mm; l is i,0 The minimum allowable length of the ith core body is mm, and is obtained through experiments, see empirical formula 7; n is the number of the core bodies; x i Is the distance of the ith interval in mm; x i，0 The maximum distance allowed for the ith interval is in mm, and is obtained through experiments, see empirical formula 8; m is the number of intervals; eta L For the length ratio, it is obtained by preferable experiment according to the size of the pipe and the flow conditionSee empirical formula 9, η L 1, wherein the mathematical meaning of formula (6) is that the sum of the lengths of all cores is greater than eta of the length of the pipeline L And (4) multiplying.
A two-phase flow shell-and-tube heat exchanger comprises a shell, wherein two ends of the shell are respectively provided with a seal head, at least one seal head is provided with a two-phase flow fluid inlet pipe, an inlet pipe flange is arranged on the fluid inlet pipe, and the inlet pipe flange is connected with a pipeline flange.
Compared with the prior art, the invention has the following advantages:
1) The passive two-phase flow stabilizing device with the vibration and noise reduction function can separate two-phase fluid into liquid phase and gas phase under the condition of not depending on external power or power supply, divide the liquid phase into small liquid masses, divide the gas phase into small bubbles, inhibit the backflow of the liquid phase, promote the smooth flow of the gas phase, play a role in stabilizing flow and have the effects of vibration and noise reduction.
2) The two-phase flow heat exchanger is arranged in the inlet pipe of the two-phase flow heat exchanger, so that the gas phase can be divided into small bubbles, the increase of the gas phase is avoided, the smooth flowing of the gas phase is promoted, the uniformity of the gas phase entering the heat exchange pipe of the heat exchanger is ensured, the heat exchange is uniform, the overhigh or overlow local temperature is avoided, and the heat exchange effect is improved.
3) The core body structure is a core component of the passive two-phase flow stabilizing device, and can divide a single large flow passage of a pipeline into a plurality of small flow passages. The sectional area of the small flow passage satisfies the above formulas (1), (2) and (3), and satisfies the above relationship, which is beneficial to ensuring the effects of separating the two-phase fluid into the liquid phase and the gas phase, dividing the liquid phase into small liquid clusters, and dividing the gas phase into small bubbles.
4) The sleeve type core body is formed by arranging and combining a plurality of concentric tubes, and the concentric tubes and the fins are utilized to divide the ring with larger sectional area into fan-shaped flow passages with smaller sectional area, thereby meeting the functional requirements of the device. The telescopic core has the characteristic of saving materials. The concentric tubes and the fins of the sleeve-type core are provided with a plurality of small holes, which is beneficial to further stabilizing the two-phase flow.
5) In the interval type arrangement mode, the length of the core body structure and the interval distance meet the formulas (4), (5) and (6), so that the repolymerization of the divided small bubbles and small liquid masses is favorably prevented, the backflow of a liquid phase is inhibited, the smooth flowing of a gas phase is promoted, and the effect of stabilizing the flow is improved.
6) To the fixed mode of wafer formula core, do not influence pipeline external environment and interface, have the simple and easy characteristics of dismouting, can be applicable to newly building the device, can be applicable to the device transformation again.
Drawings
FIG. 1 is a schematic of the two-phase flow heat exchanger of the present invention;
FIG. 2 is a schematic diagram of the configuration of a two-phase flow stabilization device of the present invention;
FIG. 3 is a schematic view of the intermittent arrangement of the two-phase flow stabilizer of the present invention;
FIG. 4 is a schematic view of the installation of the two-phase flow stabilizer of the present invention.
The reference numbers are as follows: core body 1, pipeline 2, concentric tube 3, fins 4, shell 5, end sockets 6 and 7, inlet tube 8, outlet tube 9, heat exchange tube 10 and small flow channel 11
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
In this document, "/" denotes division and "×", "denotes multiplication, referring to formulas, if not specifically stated.
In this application, the parameters are expressed in mm in terms of length and mm in terms of area, unless otherwise specified 2 。
Figure 2 shows a telescopic two-phase flow stabilizer arranged in a two-phase flow pipe, said stabilizer comprising a core 1, said core 1 being arranged in a pipe 2, said core comprising a plurality of concentric tubes 3 and fins 4, said fins 4 connecting adjacent concentric tubes 3, thereby forming a plurality of small flow channels 11 between the concentric tubes and the fins.
The two-phase flow stabilizing device can separate a two-phase fluid into a liquid phase and a gas phase under the condition of not depending on external power or a power supply, divide the liquid phase into small liquid masses, divide the gas phase into small bubbles, inhibit the backflow of the liquid phase, promote the smooth flow of the gas phase, play a role in stabilizing the flow and have the effects of vibration reduction and noise reduction.
Compared with the two-phase flow core body provided with a plurality of tubes in the prior art, the sleeve-type core body is formed by arranging and combining a plurality of concentric tubes, and the concentric tubes and the fins are utilized to divide the annular flow with larger sectional area into the fan-shaped flow passage with smaller sectional area, thereby meeting the functional requirements of the device. The telescopic core body has the characteristic of saving materials.
Preferably, the concentric tubes and the fins are provided with communication holes.
A plurality of small holes are arranged on the concentric tubes 3 and the fins 4 of the sleeve type core body 1. Through setting up the aperture, can guarantee that adjacent runner is intercommunicated, can the pressure between the uniform flow way for the fluid flow of high pressure runner flows to the low pressure, also can further separate liquid phase and gaseous phase when the fluid flows simultaneously, is favorable to further stabilizing two-phase flow.
Preferably, the distance between adjacent concentric tubes 3 becomes smaller and smaller from the center of the tubes outwards. Through the experiment discovery, the distance between the adjacent concentric pipe of bronze drum is littleer and littleer, and the range that 3 external diameters of concentric pipe increase is littleer and more promptly, can further play the effect of stable flow, has the effect of vibration damping and making an uproar. Compared with the normal arrangement, the method can improve the efficiency by about 15-20%.
Preferably, the distance between adjacent tubes 3 increases progressively less and less from the center of the tubes outwards. It is found through experiments that the improvement can be further improved by about 5% by the arrangement.
Preferably, the cross-sectional area of the small flow path satisfies the following relationship:
A i, above ≤A i, below (2)
Wherein Ai is the flow area of the ith small flow passage and the unit is mm 2 (ii) a N is the number of small runners; eta A For area ratio, it is obtained by preferred experiments according to the size of the pipe and the flow conditions, see empirical formula 3, η A <1；A 0 Is the flow area of the pipe, and has unit of mm 2 . Wherein the mathematical meaning of the formula (1) is that the sum of the sectional areas of all the pipes is greater than or equal to eta of the pipe section A Doubling; the formula (2) is that the sectional area of the upper layer pipe is smaller than or equal to that of the lower layer pipe.
The above formula is an optimal result obtained through a large number of experiments and a large number of calculations, and satisfies the above relationship, and can ensure the effects of separating the two-phase fluid into the liquid phase and the gas phase, dividing the liquid phase into small liquid masses, and dividing the gas phase into small bubbles at an optimal degree.
Preferably, the invention provides a two-phase flow shell-and-tube heat exchanger, as shown in figure 1, which comprises a shell 5, two ends of which are respectively provided with a sealing head 6 and a sealing head 7, wherein one of the sealing heads is provided with a two-phase flow inlet pipe 8 and/or an outlet pipe, and a sleeve type two-phase flow stabilizing device shown in figure 2 is arranged on the fluid inlet pipe 8 and/or the outlet pipe.
The two-phase flow heat exchanger is arranged in the inlet pipe 8 and/or the outlet pipe of the two-phase flow heat exchanger, so that the gas phase can be divided into small bubbles, the increase of the gas phase is avoided, the smooth flow of the gas phase is promoted, the uniformity of the gas phase entering the heat exchange pipe of the heat exchanger is ensured, the uniform heat exchange can be realized, the overhigh or overlow local temperature is avoided, and the heat exchange effect is improved.
Through setting up the aperture, can guarantee that adjacent runner is intercommunicated, can further guarantee that fluid fully flows between the passageway, further equalizing pressure, further improve heat transfer effect.
Further preferably, the present invention discloses a two-phase flow pipeline, wherein the stabilizing device is arranged in the pipeline, the stabilizing device is arranged in the pipeline at intervals, and in the interval arrangement, the length and the interval distance of the core structure satisfy the following relations:
L i ≥L i,0 (4)
X i ≤X i,0 (5)
in the formula, L i Is the length of the ith core in mm; l is i,0 The minimum allowable length of the ith core body is in mm and is obtained through experiments; n is the number of cores; x i Is the distance of the ith interval in mm; x i，0 The maximum distance allowed for the ith interval is the unit of mm, and is obtained through experiments; m is the number of intervals; eta L Eta. For the length ratio, obtained by preferred experiments, depending on the pipe size and flow conditions L 1 or less, wherein the mathematical meaning of formula (6) is that the sum of the lengths of all cores is greater than η of the length of the pipe L And (4) multiplying.
The above formula satisfies the above relationship by a large number of experiments and an optimal result obtained by a large number of calculations, which is beneficial to prevent the repolymerization of the divided small bubbles and small liquid masses at an optimal degree, inhibit the backflow of the liquid phase, promote the smooth flow of the gas phase, and improve the effect of stabilizing the flow.
The invention discloses an installation mode of a two-phase flow stabilizing device, as shown in figure 4, the installation mode is a clamp-type core body fixing mode, a core body structure (usually with smaller length) is firstly placed between two sections of pipelines, and then the core body structure is clamped between the two sections of pipelines to be fixed (such as bolt fastening).
Further preferably, the two-phase flow shell-and-tube heat exchanger is provided with an inlet pipe flange on the fluid inlet pipe, the inlet pipe flange is connected with the pipeline flange, and the sleeve type two-phase flow stabilizing device is clamped between the inlet pipe flange and the pipeline flange.
To the fixed mode of wafer formula core, do not influence pipeline external environment and interface, have the simple and easy characteristics of dismouting, can be applicable to newly building the device, can be applicable to the device transformation again.
Although the present invention has been described with reference to the preferred embodiments, it is not limited thereto. Various changes and modifications may be effected by one skilled in the art without departing from the spirit and scope of the invention, as defined in the appended claims.
Claims (9)
1. A shell-and-tube heat exchanger of two-phase flow comprises a shell, wherein two ends of the shell are respectively provided with a seal head, at least one seal head is provided with a two-phase flow fluid inlet pipe, and the shell-and-tube heat exchanger is characterized in that a sleeve type two-phase flow stabilizing device is arranged on the fluid inlet pipe and/or the fluid outlet pipe, the two-phase flow stabilizing device comprises a core body, the core body comprises a plurality of concentric pipes and fins, and the fins are connected with the adjacent concentric pipes.
2. The heat exchanger of claim 1 wherein the concentric tubes and fins have communication holes therein.
3. A telescopic two-phase flow stabilizer for disposition within a two-phase flow conduit includes a core comprising a plurality of concentric tubes and fins connecting adjacent ones of the concentric tubes to form a plurality of small flow passages between the concentric tubes and the fins.
4. A stabilising arrangement according to claim 3, wherein the concentric tubes and fins are provided with communicating apertures.
5. A stabilising arrangement according to claim 3, wherein the distance between adjacent tubes decreases from the centre of the tubes outwards.
6. A stabilising arrangement according to claim 4, wherein the distance between adjacent tubes increases progressively less from the centre of the tube outwards.
7. A stabilising arrangement according to claim 3, wherein the cross-sectional area of the smaller flow paths satisfies the following relationship:
A i, above ≤A i, lower (2)
Wherein Ai is the flow surface of the ith small flow passageProduct in mm 2 (ii) a N is the number of small runners; eta A The ratio of the areas is defined as,
η A <1；A 0 is the flow area of the pipeline in mm 2 。
8. A two-phase flow pipe having disposed therein a stabilizing device according to claim 7, the stabilizing device being disposed in a spaced arrangement within the pipe, the length of the core structure, the distance of spacing satisfying the following relationship:
L i ≥L i,0 (4)
X i ≤X i,0 (5)
in the formula, L i Is the length of the ith core in mm; l is a radical of an alcohol i,0 Is the minimum allowable length of the ith core, in mm,
n is the number of the core bodies; x i Is the distance of the ith interval in mm; x i，0 Is the maximum distance allowed for the ith interval, in mm,
m is the number of intervals; eta L As the ratio of the lengths of the two components,
η L ≤1。
9. a two-phase flow shell-and-tube heat exchanger comprises a shell, wherein two ends of the shell are respectively provided with a seal head, at least one seal head is provided with a two-phase flow fluid inlet pipe, an inlet pipe flange is arranged on the fluid inlet pipe, and the inlet pipe flange is connected with a pipeline flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075732.0A CN107062952B (en) | 2017-02-13 | 2017-02-13 | A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075732.0A CN107062952B (en) | 2017-02-13 | 2017-02-13 | A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement |
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| Publication Number | Publication Date |
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| CN107062952A CN107062952A (en) | 2017-08-18 |
| CN107062952B true CN107062952B (en) | 2018-01-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111412764B (en) * | 2018-07-20 | 2021-09-21 | 山东大学 | Design method of separating device in heat exchange tube for vapor-liquid two-phase flow |
| CN112313464B (en) * | 2018-07-27 | 2024-02-02 | 开利公司 | Refrigerant container part and refrigeration circuit comprising such a refrigerant container part |
| CN109585046B (en) * | 2018-12-04 | 2022-02-01 | 中国核动力研究设计院 | Device for uniformly injecting and mixing solution |
| CN112408531A (en) * | 2020-10-30 | 2021-02-26 | 安徽海螺川崎工程有限公司 | Evaporation salt making system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4402230A (en) * | 1981-07-17 | 1983-09-06 | Raptis Apostolos C | Method and apparatus for measuring flow velocity using matched filters |
| CN101017105A (en) * | 2006-02-07 | 2007-08-15 | 俞洪燕 | Gas-liquid polyphase flow separating rectifying device and measurement device thereof |
| CN101639374A (en) * | 2009-08-26 | 2010-02-03 | 姚贤卿 | Multiphase flow rectifying device |
| CN101725740A (en) * | 2009-12-31 | 2010-06-09 | 广东联塑科技实业有限公司 | Impeller type water hammer-resistant mute check valve |
| WO2016039633A1 (en) * | 2014-09-12 | 2016-03-17 | Fire Protection Engineering As | Safety device for reducing fluid hammer in a fluid piping |
-
2017
- 2017-02-13 CN CN201710075732.0A patent/CN107062952B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4402230A (en) * | 1981-07-17 | 1983-09-06 | Raptis Apostolos C | Method and apparatus for measuring flow velocity using matched filters |
| CN101017105A (en) * | 2006-02-07 | 2007-08-15 | 俞洪燕 | Gas-liquid polyphase flow separating rectifying device and measurement device thereof |
| CN101639374A (en) * | 2009-08-26 | 2010-02-03 | 姚贤卿 | Multiphase flow rectifying device |
| CN101725740A (en) * | 2009-12-31 | 2010-06-09 | 广东联塑科技实业有限公司 | Impeller type water hammer-resistant mute check valve |
| WO2016039633A1 (en) * | 2014-09-12 | 2016-03-17 | Fire Protection Engineering As | Safety device for reducing fluid hammer in a fluid piping |
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| CN107062952A (en) | 2017-08-18 |
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