CN217465502U

CN217465502U - Long-period operation heat exchanger with cleaning device

Info

Publication number: CN217465502U
Application number: CN202220784146.XU
Authority: CN
Inventors: 郭宏新; 张贤福; 刘丰
Original assignee: Jiangsu Zhongsheng Pressure Vessel Equipment Manufacturing Co ltd
Current assignee: Jiangsu Zhongsheng Pressure Vessel Equipment Manufacturing Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-09-20
Anticipated expiration: 2032-04-07

Abstract

A long-period running heat exchanger with a cleaning device is characterized in that the cleaning device of the heat exchanger comprises a mating flange, a collecting hopper, a collecting pipe and a rotating arm locking device. The mating flange, the collecting hopper and the collecting pipe are connected in sequence. The rotary arm locking device consists of a supporting plate, a rotary shaft, a sleeve, a rotary arm, a locking screw, a butterfly nut and a pin. The supporting plates are oppositely fixed on the side edges of the mating flange in pairs, the rotating shaft penetrates through the two supporting plates which are oppositely arranged, the sleeve is sleeved on the rotating shaft and can rotate around the rotating shaft, the rotating arm is fixed on the sleeve, the locking screw penetrates through a threaded hole in the rotating arm, the butterfly nut is fixed on the locking screw, and the locking screw can move back and forth by rotating the butterfly nut, so that the mating flange and the flange to be cleaned are fastened and loosened.

Description

Long-period operation heat exchanger with cleaning device

Technical Field

The utility model relates to a heat exchanger technique, especially a indirect heating equipment of long period operation, specifically speaking are long period operation heat exchanger of being furnished with cleaning device.

Background

The heat exchanger is also called a heat exchanger, is equipment for exchanging heat of fluid with temperature difference, and is general process equipment. In industrial production, the heat exchanger mainly plays the roles of ensuring the normal operation of an industrial system, ensuring reasonable temperature of process media, saving energy and recovering waste heat (or waste heat). According to different working conditions of the heat exchanger, after the heat exchanger is used for a certain time, due to corrosion, unclean fluid, high-temperature coking, low-temperature crystallization and the like, a layer of solid matter, namely a scale layer, is gradually deposited and accumulated on the wall surface of the heat exchange tube, the heat conductivity coefficient of the scale layer is low, the heat transfer resistance is increased due to the existence of the scale layer, and the heat transfer efficiency of the heat exchanger is reduced; when the scale layer reaches a considerable thickness, the heat exchange effect is influenced, the heat exchange tube is blocked, the flow resistance is increased, and more pump power is consumed for conveying the same amount of fluid. In order to maintain normal operation of the plant, the plant must be shut down to clean the heat exchanger of foulants. The dirt cleaning is usually carried out by high-pressure water washing or dredging by a pipe cleaner, and during the cleaning and washing process, the dirt and sewage can flow randomly at the end part of the heat exchange pipe, so that the sewage flows transversely on the maintenance site, the maintenance is not convenient, and the potential safety hazard is also caused; meanwhile, the heat-insulating layer is arranged outside a plurality of devices, and sewage trickles down along with the end of the device and can soak heat-insulating cotton in the heat-insulating layer, so that the heat-insulating failure or the heat-insulating effect is reduced.

Disclosure of Invention

The utility model aims at the inconvenient problem of current heat exchanger scale deposit clearance, provide a long period running heat exchanger of being furnished with cleaning device, can realize and treat that cleaning equipment locks fast under the condition that does not use special maintenance instrument, collect the sewage debris of clearance in-process, at its water conservancy diversion pipelines such as rubber hose that meet afterwards, discharge assigned position with sewage again, avoided the harm that the sewage crossing current brought again to ensure the clean and tidy of maintenance scene promptly.

The technical scheme of the utility model is that:

a long-period running heat exchanger provided with a cleaning treatment device comprises a heat exchanger body 1 and the cleaning treatment device 2, and is characterized in that the cleaning treatment device 2 comprises a mating flange 3, a collecting hopper 4, a collecting pipe 5 and a rotating arm locking device 6. The companion flange 3, the collecting hopper 4 and the collecting pipe 5 are connected in sequence. The rotating arm locking device 6 consists of a supporting plate 6-1, a rotating shaft 6-2, a sleeve 6-3, a rotating arm 6-4, a locking screw 6-5, a butterfly nut 6-6 and a pin 6-7. The supporting plates 6-1 are oppositely fixed on the side edges of the companion flange in pairs, the rotating shaft 6-2 penetrates through the two supporting plates which are oppositely arranged, the sleeve 6-3 is sleeved on the rotating shaft 6-2 and can rotate around the rotating shaft 6-2, the rotating arm 6-4 is fixed on the sleeve 6-3, the locking screw 6-5 penetrates through a threaded hole in the rotating arm 6-4, the butterfly nut 6-6 is fixed on the locking screw, and the locking screw 6-5 can move back and forth by rotating the butterfly nut 6-6, so that the companion flange 3 and the flange to be cleaned are fastened and loosened. The pins 6-7 penetrate through both ends of the rotating shaft 6-2 to prevent the rotating shaft 6-2 from falling off the supporting plate 6-1.

The shape of the mating flange 3 is matched with the sealing surface of the device to be cleaned, and the mating flange is circular, square, oval or polygonal.

The cross sections of the collecting hopper 4 and the collecting pipe 5 are conical, circular or elliptical, and the collecting hopper has the functions of collecting and discharging sewage or sundries.

The number of the rotating arm locking devices 6 is 2 or more than 2 according to the size of the equipment to be cleaned, and the rotating arm locking devices are uniformly distributed on the periphery of the mating flange.

The butterfly nut 6-6 fixed on the locking screw 6-5 is a rod-shaped cylinder or a common nut, and the locking screw can advance or retreat by rotating the butterfly nut 6-6.

The collecting hopper 4 and the collecting pipe 5 are semi-circular pipes or semi-conical shells with open structures so as to facilitate the cleaning device to enter and exit the equipment to be cleaned.

In order to facilitate the inlet and outlet of cleaning devices such as a high-pressure water gun and the like to the equipment to be cleaned, as an alternative scheme, the collecting hopper 4 and the collecting pipe 5 can be of an open structure such as a semicircular pipe and a semi-conical shell, the upper part of the collecting hopper is open, and the collecting hopper is close to the semicircular pipe or the semi-conical shell at the lower part to collect and guide sewage.

The utility model has the advantages that:

the utility model provides a be furnished with clean processing apparatus's long period operation heat exchanger, does not need maintenance instruments such as special spanner, sleeve just can realize collection device and treat that cleaning equipment fastens fast sealed, thereby collects abluent sewage, debris and discharges in order, can effectively maintain the clean and tidy of maintenance scene, has avoided harm and the potential safety hazard that the sewage crossing current brought.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged detail view of the cleaning apparatus;

FIG. 3 is a view from the direction A of FIG. 2;

fig. 4 is a schematic view of the open structure of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

The first embodiment.

As shown in fig. 1-3.

A long-period running heat exchanger with a cleaning device comprises a heat exchanger body 1 and the cleaning device 2, wherein the cleaning device 2 comprises a mating flange 3, a collecting hopper 4, a collecting pipe 5 and a rotating arm locking device 6. The companion flange 3, the collecting hopper 4 and the collecting pipe 5 are connected in sequence, the companion flange 3 is matched with a sealing surface of a device to be cleaned in shape, and the companion flange is circular, square, oval or polygonal. The rotating arm locking device 6 consists of a supporting plate 6-1, a rotating shaft 6-2, a sleeve 6-3, a rotating arm 6-4, a locking screw 6-5, a butterfly nut 6-6 and a pin 6-7. The supporting plates 6-1 are oppositely fixed on the side edges of the companion flange in pairs, the rotating shaft 6-2 penetrates through the two supporting plates which are oppositely arranged, the sleeve 6-3 is sleeved on the rotating shaft 6-2 and can rotate around the rotating shaft 6-2, the rotating arm 6-4 is fixed on the sleeve 6-3, the locking screw 6-5 penetrates through a threaded hole in the rotating arm 6-4, the butterfly nut 6-6 is fixed on the locking screw, and the locking screw 6-5 can move back and forth by rotating the butterfly nut 6-6, so that the companion flange 3 and the flange to be cleaned are fastened and loosened. The pins 6-7 penetrate through both ends of the rotating shaft 6-2 to prevent the rotating shaft 6-2 from falling off the supporting plate 6-1. The cross sections of the collecting hopper 4 and the collecting pipe 5 are conical, circular or elliptical, and the collecting hopper has the functions of collecting and discharging sewage or sundries.

Example two.

As shown in fig. 4.

The difference between this embodiment and the first embodiment is that the collecting hopper 4 is in an open structure, the collecting pipe 5 is still in a closed structure, and when the collecting pipe 5 is tilted, the collecting hopper can also be designed to be in an open structure.

The utility model discloses a use method is:

when the inside needs of heat exchanger wash, pull down equipment tip head and takeover, will the utility model discloses the companion flange of the cleaning device of long period operation heat exchanger aims at heat exchanger tip flange, and rotatory rocking arm locking device makes locking screw move to the equipment flange back, rotates butterfly nut, makes locking screw move forward, withstands the flange back to make companion flange compress tightly the equipment flange, realize the seal assembly of collection device and equipment flange, can wash equipment at the equipment other end afterwards. In order to prevent the sewage at the flushing end from overflowing, as an alternative scheme, the second embodiment is provided with an open structure at the flushing end, and the form can ensure that the high-pressure water gun can freely enter and exit the equipment and can collect the sewage overflowing at the inlet end.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution and the utility model, the concept of the present invention should be covered within the protection scope of the present invention.

Claims

1. A long-period operation heat exchanger provided with a cleaning treatment device comprises a heat exchanger body (1) and the cleaning treatment device (2), and is characterized in that the cleaning treatment device (2) comprises a companion flange (3), a collection hopper (4), a collection pipe (5) and a rotating arm locking device (6), and the companion flange (3), the collection hopper (4) and the collection pipe (5) are sequentially connected; the rotating arm locking device (6) consists of a supporting plate (6-1), a rotating shaft (6-2), a sleeve (6-3), a rotating arm (6-4), a locking screw (6-5), a butterfly nut (6-6) and a pin (6-7); the supporting plates (6-1) are oppositely fixed on the side edges of the mating flange in pairs, the rotating shaft (6-2) penetrates through the two supporting plates (6-1) which are oppositely arranged, the sleeve (6-3) is sleeved on the rotating shaft (6-2) to rotate around the rotating shaft (6-2), the rotating arm (6-4) is fixed on the sleeve (6-3), the locking screw (6-5) penetrates through a threaded hole in the rotating arm (6-4), the butterfly nut (6-6) is fixed on the locking screw, and the locking screw (6-5) moves back and forth by rotating the butterfly nut (6-6), so that the mating flange (3) and the flange to be cleaned are fastened and loosened; the pin (6-7) penetrates through two ends of the rotating shaft (6-2) to prevent the rotating shaft (6-2) from falling off from the supporting plate (6-1).

2. A heat exchanger according to claim 1, characterized in that the counterflange (3) is shaped to match the sealing surface of the device to be cleaned and is circular, square, oval or polygonal.

3. The heat exchanger according to claim 1, wherein the cross-sectional shapes of the collecting hopper (4) and the collecting pipe (5) are cone, circle or ellipse, and the collecting and discharging functions of sewage or sundries are provided.

4. A heat exchanger according to claim 1, characterized in that the tumbler locking devices (6) are arranged in 2 or more than 2 according to the size of the equipment to be cleaned, and are uniformly distributed on the periphery of the mating flange.

5. The heat exchanger as claimed in claim 1, wherein the wing nut (6-6) fixed to the locking screw (6-5) is a rod-shaped cylinder or a general nut, and the locking screw is advanced or retreated by rotating the wing nut (6-6).

6. The heat exchanger according to claim 1, characterized in that the collecting hopper (4) and the collecting pipe (5) are semi-circular pipes or semi-conical shells with open structures to facilitate the movement of the cleaning device into and out of the equipment to be cleaned.