CN111288300A

CN111288300A - Flow control device of flow distribution facility with overheat protection function

Info

Publication number: CN111288300A
Application number: CN202010137585.7A
Authority: CN
Inventors: 黄翔
Original assignee: 黄翔
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-06-16
Anticipated expiration: 2040-03-02
Also published as: CN111288300B; CN112306105B; CN112327950A; CN112327950B; CN112306105A

Abstract

The invention discloses a flow control device of a shunting facility with an overheat protection function, which comprises a heat pipe, wherein a cold pipe is arranged at the bottom of the heat pipe, an overheat protection device is arranged between the heat pipe and the cold pipe, the overheat protection device comprises a hot water main valve, two ends of the hot water main valve are communicated and connected with one side of the heat pipe, a pipeline blocking device is arranged on the heat pipe, two ends of the hot water main valve are positioned at two sides of the pipeline blocking device, the top of the heat pipe is communicated and connected with a three-way valve, one port of the three-way valve is communicated and connected with the cold pipe, a water pump is arranged at the joint of the port and the cold pipe, the cold pipe and the heat pipe are communicated and connected with the other port of the three-way valve, a first temperature sensor is arranged on the heat pipe, a second temperature sensor is arranged on the cold pipe, has the characteristics of safe use and capability of recycling heat energy.

Description

Flow control device of flow distribution facility with overheat protection function

Technical Field

The invention relates to the technical field of flow distribution, in particular to a flow control device of a flow dividing facility with an overheat protection function.

Background

The flow rate control system is a feedback control system having a flow rate as a controlled amount. Flow rate is the amount of fluid passing through a pipe per unit time. The flow control system is an important industrial control system and is widely applied to various industrial departments. Such control devices are used to transport gases, liquids or fluids with solid particles.

When the temperature of the conveyed fluid or gas is too high during overload operation, the existing flow control system can cause damage or accelerated aging of the pipe wall, and the service life of the flow control system is shortened. Therefore, it is necessary to design a flow control device of a flow dividing facility with an overheat protection function, which is safe to use and can recycle heat energy.

Disclosure of Invention

The present invention is directed to a flow control device for a flow splitting facility with an overheat protection function, so as to solve the problems of the background art.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a reposition of redundant personnel facility flow control device with overheat protection function, includes the heat pipe, cold pipe is installed to the bottom of heat pipe, be provided with overheat protection device between heat pipe and the cold pipe, overheat protection device is used for can cutting off original supply immediately when the heat pipe high temperature, and whole overheat protection device and corresponding pipeline are plus on the pipeline, can be arbitrary select the position installation on the pipeline, and the installation is dismantled conveniently.

Furthermore, the overheating protection device comprises a hot water main valve, two ends of the hot water main valve are communicated with one side of the heat pipe, the heat pipe is provided with a pipeline blocking device, two ends of the hot water main valve are positioned at two sides of the pipeline blocking device, the top of the heat pipe is communicated with a three-way valve, one port of the three-way valve is communicated with the cold pipe, a water pump is arranged at the joint of the port and the cold pipe, the cold pipe and the heat pipe are communicated with the other port of the three-way valve, the heat pipe is provided with a first temperature sensor, the cold pipe is provided with a second temperature sensor, the first temperature sensor and the second temperature sensor are used for detecting the temperatures of the heat pipe and the cold pipe and giving reference to the temperature index of the overheating protection device to control the opening degree of the hot water main valve and the three-way valve, when the hot water main valve is fully opened and the three, when the heat pipe is completely closed, all hot water needs to be subjected to heat exchange, and the flow of the lower opening of the three-way valve is adjusted according to needs, so that how the flow of mixed water entering from the right opening is distributed is determined, the flow proportion of superheated water in the original pipeline and the original cooling path can be adjusted at will, the temperature of the water is controlled, and compared with an indirect pipe heating method, the method is simple in structure and high in heat exchange speed.

Furthermore, the pipeline blocking device comprises a water flow baffle plate, the peripheral surface of the water flow baffle plate is provided with a groove, an annular air bag is embedded in the groove, a compressed gas storage tank is arranged in the water flow baffle plate, the air outlet end of the compressed gas storage tank is communicated with the annular air bag, and the connection part is provided with an air bag valve, the air inlet end of the compressed gas storage tank is connected with a pressure measuring head and an air supplement head in a run-through manner, compared with the conventional method of cutting off and welding the pipeline, the device can intercept and block the pipeline without greatly modifying the pipeline, when in use, the air supplement head is firstly used for inflating the compressed gas storage tank, then the pressure measuring head is used for measuring the pressure of the compressed gas storage tank, when the annular air bag is inflated to the cut-off position, the annular air bag is inflated until the inner wall of the heat pipe is full of the annular air bag and is blocked, the original structure is prevented from being damaged, and the effect of blocking the pipeline can be achieved.

Furthermore, the air outlet end of the compressed gas storage tank is connected with a pneumatic motor in a through manner, a power valve is arranged at the joint, guide seats are correspondingly arranged on two sides of the water flow baffle plate, the output end of the pneumatic motor is connected with an electric push rod through a coupler, the output end of the electric push rod is connected with propelling slurry, a containing groove is formed in one side of the water flow baffle plate, the propelling slurry is arranged in the containing groove, the guide seats are uniformly arranged on two sides of the water flow baffle plate, a guide rod is slidably arranged in the containing groove, a pulley is rotatably arranged at one end of the guide rod through a bearing seat, a spring is arranged between one end of the guide rod and the inner wall of the guide seat, the pulley and the inner wall of the heat pipe are in a matched structure, a controller is arranged in the water flow baffle plate, and when the water flow baffle plate is arranged, and then, the power valve is opened, so that the compressed gas storage tank drives the electric push rod to rotate, the electric push rod extends and drives the propelling slurry to rotate, and the propelling slurry is made to travel in the pipeline until the blocking position and then is inflated without manpower.

Furthermore, one end of the heat pipe is provided with a plurality of branch pipes, a heat energy shunting device is arranged between the cold pipe and the branch pipes, the heat energy shunting device comprises an evaporator, one end of the cold pipe passes through one flow passage of the evaporator, the other flow passage of the evaporator is connected with a compressor in a through manner, the output end of the compressor is connected with a condenser in a through manner, a cooling device is arranged outside the condenser, the other end of the condenser is connected with a throttling valve in a through manner, one end of the throttling valve is connected with the other flow passage of the condenser in a through manner, when the heat exchanger works, after the mixed water flowing out of the cold pipe is cooled by the evaporator, the other flow passage of the mixed water is heated and pressurized by the compressor, a high-temperature and high-pressure refrigerant is cooled by the condenser, and then throttled and expanded by the throttling, the cold water of the cold pipe can be continuously utilized.

Furthermore, the cooling device is a heat energy expansion air chamber, the heat energy expansion air chamber is in through connection with a plurality of reversing valves, a throttling cavity is arranged on the branch pipe, a piston is movably arranged in the throttling cavity, the reversing valves are used for switching whether the throttling cavity is expanded or compressed, the flow of the branch pipe is adjusted accordingly, the flow is controlled automatically, the reversing valves are preferably two-position two-way electromagnetic reversing valves, the reversing valves are used for achieving reversing flexibly, the reversing valves are electrified according to the required flow, and air after being heated and expanded flows into the throttling cavity through the reversing valves.

Furthermore, the rod cavity and the rodless cavity of the throttling cavity, which are positioned at the two ends of the piston, are respectively communicated with the two ports of the reversing valve, when the gas after thermal expansion is introduced into the rod cavity, the piston is pushed to compress the throttling cavity, so that the flow of the corresponding branch pipe is reduced, when the gas after thermal expansion is introduced into the rodless cavity, the piston is pushed to expand the throttling cavity, the flow of the corresponding branch pipe is increased, the flow of each branch pipe is distributed, and the effect of fully utilizing heat energy is achieved.

Compared with the prior art, the invention has the following beneficial effects: in the invention, the raw materials are mixed,

(1) by arranging the cold pipe, the heat pipe and the overheating protection device, when the temperature sensor detects that the temperature of the heat pipe for conveying fluid is overhigh, the original supply can be immediately cut off, water in the heat pipe is led into a part of cold inlet pipes, and mixed water flows back into the heat pipe, so that the damage of the pipeline caused by overheating is prevented, the whole overheating protection device and the corresponding pipeline thereof are externally added on the pipeline, the overheating protection device can be randomly installed at a selected position on the pipeline, and the installation and the disassembly are convenient;

(2) the flow proportion of the superheated water in the original pipeline and the original cooling path can be adjusted at will by arranging the three-way valve, the hot water main valve, the water pump and the like, and the temperature of the water is controlled;

(3) compared with the conventional method for cutting off and welding the pipeline, the pipeline cutting-off device has the advantages that the pipeline can be cut off and cut off without modifying the pipeline greatly, the compressed gas storage tank, the starting motor and other components are arranged, the pipeline can be placed into the end socket at one end of the pipeline, the pipeline is made to advance in the pipeline until the cut-off position is inflated by pushing the slurry, manpower is not needed, the original structure is prevented from being damaged, and the pipeline cutting-off effect can be achieved;

(4) through being provided with heat energy diverging device, cool off the water that flows out after cold pipe and heat pipe mix to utilize heat energy through compressor and condenser, promote the throttle chamber piston rod removal of installing in each branch pipe that links to each other with the heat pipe, distribute the flow of each branch pipe, played heat energy make full use of's effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a hydraulic schematic of the heat pipe and cold pipe of the present invention;

FIG. 3 is a schematic view of a thermal energy shunt device of the present invention;

FIG. 4 is a schematic view of the pipeline blocking apparatus of the present invention;

FIG. 5 is a schematic view of the pipe blocking apparatus of the present invention;

FIG. 6 is a schematic view of the propulsion pulp and water flow baffle installation of the present invention;

in the figure: 1. a heat pipe; 2. cooling the pipe; 3. an overheat protection device; 4. a pipeline blocking device; 5. a joint; 6. a thermal energy diversion device; 11. a first temperature sensor; 21. a second temperature sensor; 31. a three-way valve; 32. a hot water main valve; 33. a water pump; 41. a water flow baffle; 411. a containing groove; 42. an annular air bag; 421. an air bag valve; 43. a compressed gas storage tank; 431. a pressure measuring head; 432. a gas supplementing head; 44. a guide seat; 45. a guide bar; 46. a pulley; 47. propelling the slurry; 48. a spring; 49. a pneumatic motor; 491. a power valve; 61. an evaporator; 62. a compressor; 63. a throttle valve; 64. a condenser; 65. a thermal energy expansion air chamber; 66. a diverter valve; 67. a throttle chamber; 671. a piston; 12. and (4) branch pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a flow control device of a shunting facility with an overheating protection function comprises a heat pipe 1, wherein a cold pipe 2 is installed at the bottom of the heat pipe 1, an overheating protection device 3 is arranged between the heat pipe 1 and the cold pipe 2, the overheating protection device 3 is used for immediately cutting off original supply when the temperature of the heat pipe 1 is overhigh, the whole overheating protection device 3 and a corresponding pipeline thereof are externally added on a pipeline, can be installed at any selected position on the pipeline, and are convenient to install and disassemble;

referring to fig. 2, the overheating protection device 3 includes a hot water main valve 32, both ends of the hot water main valve 32 are connected to one side of the heat pipe 1, the heat pipe 1 is installed with a pipe blocking device 4, both ends of the hot water main valve 32 are located at both sides of the pipe blocking device 4, the top of the heat pipe 1 is connected to a three-way valve 31, one port of the three-way valve 31 is connected to the cold pipe 2, a water pump 33 is installed at the connection of the port and the cold pipe 2, the cold pipe 2 and the heat pipe 1 are connected to the other port of the three-way valve 31, the heat pipe 1 is installed with a first temperature sensor 11, the cold pipe 2 is installed with a second temperature sensor 21, the first temperature sensor 11 and the second temperature sensor 21 are used for detecting the temperature of the heat pipe 1 and the cold pipe 2, and a reference is given to the temperature index of the overheating protection device 3 to control the opening degree of the hot water, hot water flows from the heat pipe 1 completely, when the heat pipe 1 is completely closed, the hot water needs to exchange heat, and the flow of the lower opening of the three-way valve 31 is adjusted according to the requirement, so that how to distribute the flow of the mixed water entering from the right opening is determined, the flow proportion of the superheated water in the original pipeline and the original cooling path can be adjusted at will, and the temperature of the water is controlled;

as shown in fig. 4, the pipe blocking device 4 includes a water flow baffle 41, a groove is formed on the outer circumferential surface of the water flow baffle 41, an annular air bag 42 is embedded in the groove, a compressed gas storage tank 43 is arranged in the water flow baffle plate 41, the air outlet end of the compressed gas storage tank 43 is communicated with the annular air bag 42, and the connection is provided with an air bag valve 421, the air inlet end of the compressed gas storage tank 43 is connected with a pressure measuring head 431 and an air supplement head 432 in a penetrating way, compared with the conventional method of cutting off and welding the pipeline, the device can intercept and block the pipeline without greatly modifying the pipeline, when in use, the air supplement head 432 is firstly utilized to inflate the compressed gas storage tank 43, then the pressure measuring head 431 is utilized to measure the pressure of the compressed gas storage tank 43, when the device reaches the cut-off position, the annular air bag 42 is inflated until the annular air bag 42 is filled with the inner wall of the heat pipe 1 and is blocked, so that the original structure is prevented from being damaged, and the effect of blocking the pipeline can be realized;

as shown in fig. 5 and 6, the air outlet end of the compressed air storage tank 43 is connected to a pneumatic motor 49, a power valve 491 is disposed at the joint, guide seats 44 are correspondingly installed at both sides of the water flow baffle plate 41, the output end of the pneumatic motor 49 is connected to an electric push rod through a coupling, the output end of the electric push rod is connected to a propelling slurry 47, a containing groove 411 is disposed at one side of the water flow baffle plate 41, the propelling slurry 47 is installed inside the containing groove 411, the guide seats 44 are uniformly installed at both sides of the water flow baffle plate 41, a guide rod 45 is slidably installed inside the guide seat 44, a pulley 46 is rotatably installed at one end of the guide rod 45 through a bearing seat, a spring 48 is disposed between one end of the guide rod 45 and the inner wall of the guide seat 44, the pulley 46 and the inner wall of the heat pipe 1 are in a matching structure, a controller is installed inside the water flow, then, the power valve 491 is opened, so that the compressed gas storage tank 43 drives the electric push rod to rotate, the electric push rod extends and drives the propelling pulp 47 to rotate, and the propelling pulp 47 is made to travel in the pipeline until the blocking position and then inflated without manpower;

as shown in fig. 3, one end of the heat pipe 1 is provided with a plurality of branch pipes 12, a heat energy shunt device 6 is arranged between the cold pipe 2 and the branch pipes 12, the heat energy shunt device 6 includes an evaporator 61, one end of the cold pipe 2 passes through one flow passage of the evaporator 61, the other flow passage of the evaporator 61 is connected with a compressor 62 in a penetrating manner, the output end of the compressor 62 is connected with a condenser 64 in a penetrating manner, a cooling device is arranged outside the condenser 64, the other end of the condenser 64 is connected with a throttle valve in a penetrating manner, one end of the throttle valve is connected with the other flow passage of the condenser 64 in a penetrating manner, after the mixed water flowing out of the cold pipe 2 is cooled by the evaporator 61 during operation, the other flow passage is heated and pressurized by the compressor 62, the high-temperature and high-pressure refrigerant is cooled by the condenser 64, throttled and expanded by the throttle, the cold water of the cold pipe 2 is convenient to be continuously utilized;

the cooling device is a heat energy expansion air chamber 65, the heat energy expansion air chamber 65 is connected with a plurality of reversing valves 66 in a penetrating manner, a throttling cavity 67 is arranged on the branch pipe 12, a piston 671 is movably arranged in the throttling cavity 67, the reversing valves 66 are used for switching whether the throttling cavity 67 is expanded or compressed so as to adjust the flow rate of the branch pipe 12 and realize the autonomous control of the flow rate, the reversing valves 66 are preferably two-position two-way electromagnetic reversing valves for realizing the reversing more flexibly, the reversing valves 66 are electrified according to the required flow rate, and the heated and expanded air flows into the throttling cavity 67 through the reversing valves 66;

the throttle cavity 67 is located the pole chamber and the rodless chamber at piston 671 both ends and is linked together with two ports of the switching-over valve 66 respectively, when the pole chamber lets in the gas after the thermal expansion, the piston is promoted and is compressed the throttle cavity 67, make its branch pipe 12 flow that corresponds reduce, when the rodless chamber lets in the gas after the thermal expansion, the piston is promoted and is expanded the throttle cavity 67, the branch pipe 12 flow that corresponds increases, distribute the flow of each branch pipe 12, has played the effect of heat energy make full use of.

Example (b): when installing this overheat protection device 3, only need to drill on heat pipe 1 and cold pipe 2 according to the size shape of pipeline earlier, weld it on the pipeline, place pipeline blocking device 4 in heat pipe 1 next, utilize propulsion thick liquid 47 to make it move to the true position in heat pipe 1, pipeline blocking device 4 is used for intercepting the flow of pipeline, utilize two temperature sensor to survey the temperature in heat pipe 1 and the cold pipe 2 during the use, utilize overheat protection device 3 to mix the cooling with two pipes, the liquid that flows out after cold pipe 1 mixes is carried out heat recovery by heat energy diverging device 6, and utilize heat energy expansion air chamber 65 to give the reposition of redundant personnel power of each branch pipe 12 diverging device of heat pipe 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A flow control device of a flow dividing facility with an overheat protection function, comprising a heat pipe (1), characterized in that: the bottom of the heat pipe (1) is provided with a cold pipe (2), and an overheat protection device (3) is arranged between the heat pipe (1) and the cold pipe (2).

2. A flow control device for a flow dividing facility having an overheat protection function according to claim 1, wherein: overheat protection device (3) are including hot water main valve (32), the both ends of hot water main valve (32) and one side through connection of heat pipe (1), install pipeline blocking device (4) on heat pipe (1), hot water main valve (32) both ends are located the both sides of pipeline blocking device (4), the top through connection of heat pipe (1) has three-way valve (31), a port and cold pipe (2) through connection of three-way valve (31), and the junction of this port and cold pipe (2) is provided with water pump (33), cold pipe (2) and heat pipe (1) and another port through connection of three-way valve (31), install first temperature sensor (11) on heat pipe (1), install second temperature sensor (21) on cold pipe (2).

3. A flow control device for a flow dividing facility having an overheat protection function according to claim 2, wherein: pipeline blocking device (4) are including rivers baffle (41), the outer peripheral face of rivers baffle (41) is seted up flutedly, and the inside embedding of recess has annular gasbag (42), the internally mounted of rivers baffle (41) has compressed gas holding vessel (43), the end of giving vent to anger and annular gasbag (42) through connection of compressed gas holding vessel (43), and the junction is provided with gasbag valve (421), the inlet end through connection of compressed gas holding vessel (43) has pressure measuring head (431) and tonifying qi head (432).

4. A flow control device of a flow dividing facility with an overheat protection function according to claim 3, wherein: the compressed gas storage tank (43) is connected with a pneumatic motor (49) through the outlet end, a power valve (491) is arranged at the joint, guide seats (44) are correspondingly arranged on two sides of a water flow baffle plate (41), the output end of the pneumatic motor (49) is connected with an electric push rod through a coupling, the output end of the electric push rod is connected with propulsion slurry (47), a containing groove (411) is formed in one side of the water flow baffle plate (41), the propulsion slurry (47) is arranged in the containing groove (411), the guide seats (44) are uniformly arranged on two sides of the water flow baffle plate (41), a guide rod (45) is slidably arranged in the guide seat (44), a pulley (46) is rotatably arranged at one end of the guide rod (45) through a bearing seat, and a spring (48) is arranged between one end of the guide rod (45) and the inner wall of the guide seat (44), the pulley (46) and the inner wall of the heat pipe (1) are of a matched structure, and a controller is installed inside the water flow baffle (41).

5. A flow control device of a flow dividing facility with an overheat protection function according to claim 4, wherein: the one end of heat pipe (1) is provided with a plurality of branch pipes (12), be provided with heat energy diverging device (6) between cold pipe (2) and branch pipe (12), heat energy diverging device (6) are including evaporimeter (61), a runner of evaporimeter (61) is passed through to the one end of cold pipe (2), another runner through connection of evaporimeter (61) has compressor (62), the output through connection of compressor (62) has condenser (64), the outside of condenser (64) is provided with cooling device, the other end through connection of condenser (64) has the choke valve, the one end of choke valve and another runner through connection of condenser (64).

6. A flow control device for a flow dividing facility having an overheat protection function according to claim 5, wherein: the cooling device is a heat energy expansion air chamber (65), the heat energy expansion air chamber (65) is connected with a plurality of reversing valves (66) in a penetrating mode, a throttling cavity (67) is arranged on the branch pipe (12), and a piston (671) is movably mounted inside the throttling cavity (67).

7. A flow control device for a flow dividing facility having an overheat protection function according to claim 6, wherein: and the throttle cavity (67) is positioned at the rod cavity and the rodless cavity at the two ends of the piston (671) and is respectively communicated with the two ports of the reversing valve (66).