CN210004862U

CN210004862U - Cleaning device and heat exchanger with same

Info

Publication number: CN210004862U
Application number: CN201920732086.5U
Authority: CN
Inventors: 雒建虎; 苟荣恒; 何源; 李国峰; 何海科; 王勇; 郭伟; 王冬冬; 刘广厦
Original assignee: Shenhua Xinjiang Chemical Co Ltd; China Shenhua Coal to Liquid Chemical Co Ltd; China Energy Investment Corp Ltd
Current assignee: Guoneng Xinjiang Chemical Co ltd; China Shenhua Coal to Liquid Chemical Co Ltd; China Energy Investment Corp Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-01-31
Anticipated expiration: 2029-05-21

Abstract

The utility model provides an belt cleaning device and have its heat exchanger, this belt cleaning device set up on the heat exchanger to be used for wasing the heat exchanger, belt cleaning device includes a plurality of scavenge pipes, and a plurality of scavenge pipes setting are washd with the heat exchange tube assembly to in the heat exchanger, the utility model discloses a belt cleaning device has solved the inconvenient abluent problem of heat exchanger among the prior art.

Description

Cleaning device and heat exchanger with same

Technical Field

The utility model relates to a heat exchange technology field particularly, relates to belt cleaning device and have its heat exchanger.

Background

The heat exchanger is used as a process device for heat and cold fluid heat flow exchange in industries such as petroleum, chemical industry (coal chemical industry), pharmacy, nuclear energy and the like by , and plays a role in lifting the weight, according to statistics, the investment of the heat exchanger used in the modern chemical industry accounts for about 30% of the total investment of the device, the heat exchanger accounts for about 40% of all process devices in an oil refinery, and a seawater desalination process device almost completely consists of the heat exchanger.

, which is an index of good operation of the heat exchanger, is heat exchange efficiency, tube bundle scaling is important factors influencing heat exchange, regular cleaning of the heat exchanger becomes part of daily inspection and maintenance, and in actual production, cleaning of the shell-and-tube heat exchanger takes time, labor and waste, and the service life of the heat exchanger is greatly shortened if core pulling cleaning is frequently performed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides kinds of belt cleaning device and have its heat exchanger to solve the inconvenient abluent problem of heat exchanger among the prior art.

In order to achieve the above object, according to aspects of the present invention, there are provided kinds of cleaning devices disposed on a heat exchanger for cleaning the heat exchanger, the cleaning devices including a plurality of cleaning pipes disposed in the heat exchanger for cleaning a heat exchange pipe assembly in the heat exchanger.

, the cleaning tube has at least water inlets, and the cleaning device further comprises a sealing member corresponding to the water inlets and detachably disposed at the corresponding water inlets to open or close the water inlets.

, the water inlet of the cleaning tube is provided with an internal thread, the sealing element is at least partially provided with an external thread, and the sealing element is connected with the water inlet in a thread fit way.

step by step, a plurality of water outlets are arranged on the cleaning pipe and evenly distributed on the pipe wall of the cleaning pipe, so that water in the cleaning pipe is sprayed out from the water outlets to clean the heat exchange pipe assembly.

the water outlet holes are strip-shaped holes extending along the axial direction of the cleaning tube.

, the washing device further includes a drain mechanism coupled to the heat exchanger to drain water from the heat exchanger.

, a plurality of baffles are provided in the heat exchanger, and the drainage mechanism comprises a plurality of drainage pipes arranged at intervals at the bottom of the shell of the heat exchanger, wherein the drainage pipes are arranged on the heat exchanger between two adjacent baffles to drain water between two adjacent baffles out of the heat exchanger.

, the cleaning device further comprises a sedimentation tank, and a water discharge mechanism is connected with the sedimentation tank to discharge the cleaned water in the heat exchanger into the sedimentation tank for purification.

, the cleaning device further comprises a water supply mechanism including a water pump connected with the sedimentation tank for pumping water from the upper layer of the sedimentation tank, and a water spray pipe having multiple nozzles corresponding to the multiple cleaning pipes for supplying water to the multiple cleaning pipes simultaneously.

According to the utility model discloses an in addition aspect, kinds of heat exchangers are provided, including casing, heat exchange tube subassembly and belt cleaning device, belt cleaning device is foretell belt cleaning device, and belt cleaning device sets up in the heat exchange tube subassembly to wash the inner wall to heat exchange tube subassembly and/or casing.

Use the technical scheme of the utility model cleaning device in mainly use in shell and tube type heat exchanger, this belt cleaning device include a plurality of scavenge pipes, and a plurality of scavenge pipes set up around the inside circumference interval of shell and tube type heat exchanger, or a plurality of scavenge pipes encircle the setting of heat exchange tube subassembly to in the heat exchanger carries out all-round washing, the utility model provides a belt cleaning device sets up on the heat exchanger, can directly clear up the heat exchange tube subassembly when needing, has solved in the past the heat exchanger need take out the heat exchange tube subassembly when needs clear up and carry out the problem of clearing up for it is simpler to clear up.

Drawings

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

fig. 1 shows a schematic structural view of an embodiment of a heat exchanger according to the present invention;

FIG. 2 is a schematic view of a cleaning pipe of an embodiment of the cleaning apparatus of the present invention;

fig. 3 shows a schematic connection diagram of the water supply mechanism and the water discharge mechanism of the present invention;

figure 4 shows a cross-sectional view of a heat exchanger of the present invention;

fig. 5 shows the position schematic diagram of the cleaning tube and the heat exchange tube of the present invention.

Wherein the figures include the following reference numerals:

1. the device comprises a shell, a pipe side inlet flange, a front pipe box equipment flange, a front pipe plate, a shell flange, a No. 4, a No. shell flange, a heat exchange pipe, a No. 8 shell side outlet flange, a No. 9 exhaust plug, a No. 14 back pipe plate, a No. 15 drainage plug, a No. 18 second shell flange, a No. 19 outlet guide cylinder, a No. 70 saddle, a No. 21 distance rod distance pipe, a No. 24 blow-down valve, a No. 25 inlet guide cylinder, a No. 26 shell side inlet flange, a No. 28 pipe side outlet flange, a No. 29 front pipe box, a No. 28;

10. cleaning the tube; 11. a water inlet; 12. a water outlet hole; 20. a seal member; 30. a baffle plate; 40. a drain pipe; 50. a sedimentation tank; 60. a housing; 80. and (4) a water pump.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The utility model provides an belt cleaning devices, please refer to fig. 1-5, belt cleaning device sets up on the heat exchanger to be used for wasing the heat exchanger, belt cleaning device includes a plurality of scavenge pipes 10, and a plurality of scavenge pipes 10 set up in order to wash the heat exchange tube assembly in the heat exchanger.

The utility model provides a belt cleaning device mainly uses in shell and tube type heat exchanger, and this belt cleaning device includes a plurality of scavenge pipes 10, and a plurality of scavenge pipes 10 encircle the inside circumference interval ground setting of shell and tube type heat exchanger, or a plurality of scavenge pipes 10 encircle the setting of heat exchange tube assembly to in the heat exchanger carries out all-round washing, the utility model provides a belt cleaning device sets up on the heat exchanger, can directly clear up heat exchange tube assembly when needing, has solved in the past the heat exchanger need take heat exchange tube assembly out the problem of clearing up when needs clear up for it is simpler to clear up.

The end of the cleaning tube 10 is provided with a water inlet 11, and the cleaning device further comprises a sealing member 20, wherein the sealing member 20 is detachably arranged at the water inlet 11 to open or close the water inlet.

As shown in fig. 2, it is preferable that water inlets 11 are provided at both ends of the washing pipe in this embodiment, and detachable sealing members 20 are provided at the water inlet 11 of each washing pipe 10, and the sealing members 20 are preferably rubber plugs or wooden plugs, etc. so that the sealing members 20 are plugged into the water inlets 11 to prevent other impurities from entering the washing pipes to cause blockage or contamination when the heat exchange pipe assembly does not need to be cleaned.

The water inlet 11 of the cleaning pipe 10 is provided with an internal thread, the sealing element 20 is at least partially provided with an external thread, and the sealing element 20 is connected with the water inlet 11 in a threaded fit manner.

For the convenience of installing the sealing member in water inlet 11 department in this embodiment, be equipped with section internal threads at the water inlet 11 inboard of scavenge pipe 10, be equipped with corresponding external screw thread simultaneously on the sealing member, the sealing member passes through screw-thread fit with the scavenge pipe and is connected.

Be equipped with a plurality of apopores 12 on the scavenge pipe 10, a plurality of apopores 12 equipartitions are on the pipe wall of scavenge pipe 10 to make the water in the scavenge pipe 10 wash from apopore 12 blowout in order to the heat transfer pipe subassembly. The apopore 12 is the bar hole, and the axis direction of bar hole edge scavenge pipe 10 extends.

A plurality of water outlet holes 12 are arranged on the cleaning pipe 10 at intervals in the embodiment, preferably, the water outlet holes 12 are strip-shaped holes, and high-pressure water enters the cleaning pipe 10 and is sprayed out from the water outlet holes 12 to the heat exchange pipe assembly so as to clean the heat exchange pipe assembly.

The cleaning device further comprises: and the drainage mechanism is connected with the heat exchanger to drain water in the heat exchanger. A plurality of baffle plates 30 are arranged in the heat exchanger, and the drainage mechanism comprises: a plurality of water discharge pipes 40, wherein the plurality of water discharge pipes 40 are arranged at the bottom of the heat exchanger at intervals; wherein a drain pipe 40 is provided on the heat exchanger between two adjacent baffles 30 to drain water between two adjacent baffles 30 out of the heat exchanger.

In this embodiment, a drainage mechanism is further provided on the cleaning apparatus to recover water discharged from the inside of the cleaning pipe, specifically, a plurality of baffle plates 30 are provided in the heat exchanger to install the cleaning pipe, and the heat exchange pipe assembly is fixed, the baffle plates are provided at intervals in the axial direction of the shell-and-tube heat exchanger, the drainage mechanism includes a plurality of drainage pipes 40, drainage pipes are provided between every two adjacent baffle plates, and the drainage pipes are communicated with the casing 60 to discharge water from the inside of the heat exchanger.

The cleaning device further comprises: and a sedimentation tank 50, wherein a water discharging mechanism is connected with the sedimentation tank 50 so as to discharge the water cleaned in the heat exchanger into the sedimentation tank 50 for purification.

The cleaning device in this embodiment further includes a sedimentation tank 50, and a plurality of drain pipes all communicate with sedimentation tank 50 to make the water drainage mechanism discharge the water in the heat exchanger into the sedimentation tank, the sedimentation tank will be discharged the interior impurity of water and deposit, purify.

The cleaning device further comprises a water supply mechanism, wherein the water supply mechanism comprises a water pump 80 and a water spray pipe, the water pump 80 is connected with the sedimentation tank 50 to extract water on the upper layer in the sedimentation tank 50, a plurality of spray heads are arranged on the water spray pipe, and the plurality of spray heads are arranged corresponding to the plurality of cleaning pipes 10 to simultaneously supply water to the plurality of cleaning pipes 10.

The cleaning device in the embodiment is further provided with a water supply mechanism to form a closed loop of cleaning water, the water supply mechanism pumps the purified water into the cleaning pipes, the cleaning pipes spray water to clean the heat exchange pipe assembly, and the drainage mechanism recovers the cleaned sewage to the sedimentation tank for sedimentation and purification for secondary use, the water supply mechanism comprises a water pump 80 and a water spray pipe, the water pump 80 pumps the water on the upper layer of the sedimentation tank and is connected with the plurality of cleaning pipes through the water spray pipe to input high-pressure water into each cleaning pipe.

The utility model also provides kinds of heat exchangers, including casing 60, heat exchange tube assembly and belt cleaning device, belt cleaning device is foretell belt cleaning device, and belt cleaning device sets up in heat exchange tube assembly to wash the inner wall to heat exchange tube assembly and/or casing 60.

The utility model also provides kinds of heat exchangers that have above-mentioned belt cleaning device, the heat exchange tube assembly setting of this heat exchanger is in casing 60, and belt cleaning device also sets up in casing 60 to it can clear up it to make need not take heat exchange tube assembly out, has reduced heat exchange tube assembly and has taken out the risk that the clearance brought the damage, has also reduced the amount of labour.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

the device comprises a shell, a pipe side inlet flange 1, a pipe side outlet flange 28, a front pipe box 29, a front pipe box equipment flange 2, a shell flange , a shell flange 4, a second shell flange 18, a heat exchange pipe 6, a front pipe plate 3, a plurality of positioning pieces, a shell outlet flange 8, a shell side inlet flange 26, an exhaust screw plug 9 and a liquid drainage screw plug 15, wherein the short pipe is welded with the rear pipe box, a floating head cover is in flange bolt connection with the rear pipe plate 14, the shell 60 is in flange bolt connection with the rear pipe box, the baffle plate 30, the outlet guide cylinder 19 and the inlet guide cylinder 25 are in welded connection, the distance pipe 21, the front pipe plate 3, the rear pipe plate 14, the baffle plate 30, the high-pressure water pump pipe, the high-pressure water pump, the high-pressure water-discharge pipe, the high-pressure water-cleaning pipe, the high-pressure water-discharge pipe, the high-pressure water-cleaning pump, the high-efficiency water-efficiency sewage-efficiency cleaning system is achieved.

A cleaning process: the heat exchanger is provided with a front tube box 29 end socket which is removed, and a plug at the end part of the cleaning tube 10 is removed and is connected with an outlet pipe of the high-pressure water pump. The back flow of the drain valve 24 is opened, and the drain valve 24 is opened. After continuously injecting water into the sedimentation tank 50, the high-pressure water pump is started, the cleaning water is pumped into the cleaning pipe after being pressurized, and is sprayed out from the pipe axial notch gap, and the dirt in the narrow gap of the heat exchange pipe is broken and taken away by the high-pressure water and flows to the floor drain or the sedimentation tank 50 from the bottom drain pipe.

A saddle 70 is arranged below the shell, and the tubular heat exchanger is fixed on the base of the frame/horizontal ground equipment through the saddle 70.

The utility model provides a cleaning tube 10 and preceding tube sheet 3 weld and stretch out the pipe sheet length within range and carry out the tapping for expanding after connecing, connect sealing member 20, the preferred plug of sealing member (the plug is tightened when normally putting into service) this cleaning tube internal thread matches with high pressure cleaning pump outlet pipe screw thread, it has the apopore to open on the cleaning tube, the apopore is long and narrow seam, be used for wasing heat exchange tube outer wall dirt, blowdown when the casing bottom is provided with a plurality of drain pipes and blowoff valve and is not used for wasing, replace original a small number of heat exchange tubes for high pressure water wash pipe (hereinafter referred to as cleaning tube) or increase several scavenge pipes on original basis more, the cleaning tube arranges according to definite mode, it is used for washing to open the slit on the scavenging pipe, set up a plurality of drain pipes and blowoff valve (all setting up between per 2 baffling boards) bottom the heat exchanger casing, when needing to wash the shell, open the blowoff valve, the head is pulled down, the plug that will wash the tip is pulled down, high pressure water piping connection is at the cleaning tube tip, is decided order and is washed one by.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically indicated, it is understood that the dimensions of the various parts illustrated in the drawings are not drawn to scale as actual, techniques, methods and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are to be considered part of the warranty description, where appropriate.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over" and the like may be used herein to describe the spatially positional relationship of devices or features to other devices or features as illustrated in the figures.

It should be noted that the terms "", "second", etc. are used to define the components, and are only used to distinguish the corresponding components, and the terms do not have special meanings unless otherwise stated, and therefore, should not be construed as limiting the scope of the present invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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, cleaning device, arranged on a heat exchanger for cleaning the heat exchanger, characterized in that the cleaning device comprises:

the heat exchanger comprises a plurality of cleaning pipes (10), wherein the cleaning pipes (10) are arranged in the heat exchanger to clean a heat exchange pipe assembly in the heat exchanger.

2. The cleaning device according to claim 1, characterized in that at least water inlets (11) are provided on the cleaning tube (10), the cleaning device further comprising:

a sealing member (20), the sealing member (20) being disposed corresponding to the water inlet (11) , the sealing member (20) being detachably disposed at the respective water inlet (11) to open or close the water inlet (11).

3. The cleaning device according to claim 2, characterized in that the cleaning tube (10) is provided with an internal thread at the water inlet (11), the sealing element (20) is at least partially provided with an external thread, and the sealing element (20) is in threaded fit connection with the water inlet (11).

4. The cleaning device according to claim 3, wherein a plurality of water outlet holes (12) are formed in the cleaning pipe (10), and the plurality of water outlet holes (12) are uniformly distributed on the pipe wall of the cleaning pipe (10), so that water in the cleaning pipe (10) is sprayed out from the water outlet holes (12) to clean the heat exchange pipe assembly.

5. A cleaning device according to claim 4, characterized in that the outlet opening (12) is a strip-shaped opening which extends in the axial direction of the cleaning tube (10).

6. The cleaning device of claim 1, further comprising:

the drainage mechanism is connected with the heat exchanger to drain water in the heat exchanger.

7. The cleaning apparatus defined in claim 6, wherein a plurality of baffles (30) are provided in the heat exchanger, and the drainage mechanism comprises:

a plurality of water discharge pipes (40), wherein the water discharge pipes (40) are arranged at the bottom of the heat exchanger at intervals;

wherein the drain pipe (40) is arranged at the bottom of the shell of the heat exchanger between two adjacent baffles (30) so as to drain water between two adjacent baffles (30) out of the heat exchanger.

8. The cleaning device of claim 7, further comprising:

and the water drainage mechanism is connected with the sedimentation tank (50) so as to drain the cleaned water in the heat exchanger into the sedimentation tank (50) for purification.

9. The cleaning device of claim 8, further comprising a water supply mechanism, the water supply mechanism comprising:

the water pump (80), the said water pump (80) is connected with said sedimentation tank (50), in order to draw the water of the upper strata in the said sedimentation tank (50);

and a plurality of nozzles provided on the water spray pipe, the plurality of nozzles being provided corresponding to the plurality of cleaning pipes (10) , and supplying water into the plurality of cleaning pipes (10) at the same time.

A heat exchanger of the type 10, , comprising a shell (60), a heat exchange tube assembly and a cleaning device, characterized in that the cleaning device is the cleaning device of any of claims 1-9, , disposed within the heat exchange tube assembly for cleaning the heat exchange tube assembly and/or the inner wall of the shell (60).