CN210486604U

CN210486604U - Tubular heat exchanger convenient to it is clean

Info

Publication number: CN210486604U
Application number: CN201920968903.7U
Authority: CN
Inventors: 贾朋伟; 王刚; 李真达; 邱奇志; 代国良; 张晓峰; 冯亚; 郭良荣; 宋维鹏
Original assignee: Huaneng Jingmen Thermal Power Co Ltd
Current assignee: Huaneng Jingmen Thermal Power Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-05-08
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a tubular heat exchanger convenient for cleaning, which comprises a heat exchanger, a water inlet end enclosure and a water outlet end enclosure which are respectively arranged at two ends of the heat exchanger, wherein the end part of the water inlet end enclosure is provided with a first closing plate, the first closing plate is provided with a filter screen cylinder, the filter screen cylinder is positioned in the water inlet end enclosure, the outer ring of the filter screen cylinder is attached to the inner wall of the water inlet end enclosure, the end part of the water outlet end enclosure is provided with a second closing plate, the cleaning work of the heat exchanger can be carried out only by disassembling the first closing plate at the end part of the water inlet end enclosure and the second closing plate at the end part of the water outlet end enclosure, the quick-assembling type closing plate enables the disassembly and the assembly to be quicker, the disassembly of a water inlet pipeline, a water outlet pipeline and a pipe bracket which are connected with the heat exchanger is not required to be disassembled, the workload is effectively reduced, the shutdown time of the equipment can be reduced to the maximum extent and the equipment is put into production quickly.

Description

Tubular heat exchanger convenient to it is clean

Technical Field

The utility model relates to a heat transfer device technical field, more specifically are a tubular heat exchanger convenient to it is clean.

Background

A tube heat exchanger is a typical surface heat exchanger, which mainly comprises a shell, a tube bundle, a tube plate, and a head, wherein the wall surface of the tube bundle is a heat transfer surface, a cooling medium generally flows inside the tube bundle, and a cooled fluid generally flows on the outer wall of the tube bundle.

Because the cooling medium (generally, cooling water) may contain impurities, dirt may be formed on the inner wall of the tube bundle after the tube heat exchanger operates for a certain period, which may seriously affect the heat exchange efficiency of the heat exchanger.

In the tubular heat exchanger produced and sold in the current market, cooling water inlet and outlet pipelines are uniformly distributed on the horizontal side of the seal head, the arrangement mode does not consider the workload of cleaning the heat exchanger on site, and the difficulty degree of the site operation is aggravated. During each overhaul, the maintainers need to disassemble the following components: 1. the water inlet end socket is connected with a cooler connecting flange; 2. the water inlet end socket and the water inlet pipe are connected with a flange; 3. the water outlet end socket is connected with a cooler connecting flange; 4. the water outlet end socket and the water outlet pipe are connected with a flange. Meanwhile, as the inlet and outlet water pipes are rigidly connected with the cooler, and the joints of the end sockets and the cooler are provided with the inner rabbets, in order to ensure that the end sockets on the two sides of the inlet and outlet can be normally taken out, the pipe supports of the inlet and outlet pipelines on the two sides are also required to be disassembled, the pipelines are lengthened by using tools such as crowbars, and the like, the process is required to be repeated in reverse order when the pipeline is cleaned and reinstalled, the whole cleaning working time is as long as 6-8 hours, on one hand, the overhauling labor intensity is higher, on the other hand, the equipment withdrawal standby time is correspondingly prolonged due to longer overhauling time.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the tubular heat exchanger is convenient to disassemble and assemble and convenient to clean aiming at the defects of the prior art.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the utility model provides a tubular heat exchanger convenient to it is clean, includes the inside heat exchanger that is equipped with the heat exchange tube, installs the head of intaking and the head of going out at the heat exchanger both ends respectively, be equipped with the water inlet on the head of intaking, be equipped with the delivery port on the head of going out, first shrouding is installed to the tip of the head of intaking, be equipped with the filter screen section of thick bamboo on the first shrouding, the filter screen section of thick bamboo is located the head of intaking, the outer lane of filter screen section of thick bamboo with the inner wall of the head of intaking laminates mutually, follows the cooling water that the water inlet came in enters into the heat exchange tube again after the filter screen section of thick bamboo.

Furthermore, the water inlet is obliquely arranged on the water inlet seal head, the oblique angle is 30-45 degrees, and the water inlet is vertically arranged on the water outlet seal head.

Further, the first sealing plate and the second sealing plate are respectively blind plate flanges.

Further, the tip at the head of intaking is installed through the ready-package clamp to first shrouding, the tip at the head of going out is installed through the ready-package clamp to the second shrouding, be equipped with the recess that corresponds with the ready-package clamp on first shrouding and the second shrouding respectively.

Furthermore, the first sealing plate and the water inlet end enclosure and the second sealing plate and the water outlet end enclosure are respectively sealed by rubber rings.

Furthermore, a pressure monitoring meter is also arranged on the water outlet end socket or the water outlet.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses the product is when wasing, only need dismantle the first shrouding of water inlet seal head end portion and go out the second shrouding of water seal head end portion and can carry out the cleaning work of heat exchanger, the shrouding of ready-package makes the dismouting more swift, need not to dismantle the inlet channel of connecting the heat exchanger again, outlet conduit and pipe holder, the work load has effectively been reduced, the intensity of labour of maintainer has been reduced, simultaneously because repair time shortens, tubular heat exchanger withdraws from reserve time also shorter, can reduce equipment outage time by the at utmost and put into production more fast.

2. The filter screen cylinder in the water inlet end socket can filter impurities in cooling water, so that the quality of the cooling water entering the heat exchange tube is improved, meanwhile, the water inlet is obliquely arranged on the water inlet end socket, so that the water inlet and the filter screen cylinder have a certain angle, the contact area with the filter screen cylinder is increased, and the filtering effect is enhanced.

3. The setting of going out water seal head end pressure monitoring table can make the staff master the pressure of cooling water in real time, when pressure is less than the default, reminds the staff in time to carry out cleaning work to the heat exchanger to guarantee heat exchanger heat exchange efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Figure 1 is a schematic overall structure diagram of the embodiment of the invention,

figure 2 is a longitudinal cross-sectional view of figure 1,

fig. 3 is a cross-sectional view of the first closure plate 22 and filter screen cartridge 23 of fig. 2, showing the configuration of the recess 221 corresponding to the ready-to-install clip.

The reference numbers are as follows:

the device comprises a heat exchanger 1, a water inlet end enclosure 2, a water inlet 21, a first sealing plate 22, a groove 221, a filter screen cylinder 23, a water outlet end enclosure 3, a water outlet 31, a second sealing plate 32 and a pressure monitoring meter 33.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, the present invention provides a technical solution, including a heat exchanger 1 having a heat exchange tube therein, a water inlet end enclosure 2 and a water outlet end enclosure 3 installed at two ends of the heat exchanger 1, respectively, the water inlet end enclosure 2 is provided with an inclined water inlet 21, the inclination angle is 45 °, a first closing plate 22 is installed at an end portion of the water inlet end enclosure 2, the first closing plate 22 is provided with a filter screen cylinder 23, the filter screen cylinder 23 is located in the water inlet end enclosure 2, an outer ring of the filter screen cylinder 23 is attached to an inner wall of the water inlet end enclosure 2, cooling water entering from the water inlet 21 passes through the filter screen cylinder 23 and then enters the heat exchanger closing plate, the water outlet end enclosure 3 is vertically provided with a water outlet 31, a second end portion of the water outlet end enclosure 3 is installed with a second filter screen cylinder 32, the filter screen cylinder 23 can filter impurities in the cooling water, thereby improving quality of, meanwhile, the water inlet 21 is obliquely arranged on the water inlet end socket 2, so that the water inlet and the filter screen cylinder 23 have a certain angle, the contact area of the water inlet and the filter screen cylinder 23 is increased, and the filtering effect is enhanced.

The first and

second closure plates

22, 32 may each be provided by blind flange, preferably, the first and

second closure plates

22, 32 are provided as a snap-fit, the first sealing plate 22 is arranged at the end part of the water inlet end socket 2 through a quick-assembly clamp, the second sealing plate 32 is arranged at the end part of the water outlet end socket 3 through a quick-assembly clamp, the first sealing plate 22 and the second sealing plate 32 are respectively provided with a groove 221 corresponding to the fast-assembly clamp, and the first sealing plate 22 and the second sealing plate 32 are arranged, so that when the heat exchanger is cleaned, only the first sealing plate 22 and the second sealing plate 32 need to be disassembled, the quick-assembly sealing plate enables the disassembly and the assembly to be quicker, the water inlet pipeline, the water outlet pipeline and the pipe bracket which are connected with the heat exchanger do not need to be disassembled, the workload is effectively reduced, the labor intensity of maintainers is reduced, meanwhile, the maintenance time is shortened, the standby time for the tubular heat exchanger to exit is also shorter, and the equipment shutdown time can be reduced to the greatest extent and the tubular heat exchanger can be put into production quickly.

In order to prevent the cooling water from leaking and ensure the tightness of the water inlet seal head 2 and the water outlet seal head 3, the first seal plate 22 and the water inlet seal head 2 as well as the second seal plate 32 and the water outlet seal head 3 are respectively sealed by rubber rings.

In order to enable the staff to master the pressure of the cooling water in real time and remind the staff to clean the heat exchanger 1 in time so as to guarantee the heat exchange efficiency of the heat exchanger 1, a pressure monitoring meter 33 is further arranged on the water outlet end socket 3 or the water outlet 31.

The working principle is as follows: cooling water enters the heat exchange tube of the heat exchanger 1 from the water inlet 21 of the water inlet end enclosure 2 through the filter screen cylinder 23, thereby exchanging heat with the hot fluid passing through the heat exchanger 1 to cool the hot fluid, cooling water flows out through the water outlet 31 of the water outlet end enclosure 3, the system pressure of the cooling water is 0.1 +/-0.02 MPa under the normal state, when the pressure of the pressure monitoring meter 33 is smaller than the normal value, the worker needs to clean the heat exchanger 1, the whole cleaning work only needs to detach the first sealing plate 22 and the second sealing plate 32, then, the water inlet end socket 2 is connected with high-pressure water or a chemical agent, so that the inner wall of a heat exchange pipe in the heat exchanger 1 is cleaned, and then the first sealing plate 22 and the second sealing plate 32 are installed back on the water inlet end socket 2 and the water outlet end socket 3 after cleaning.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides a tubular heat exchanger convenient to it is clean, includes inside heat exchanger (1) that is equipped with the heat exchange tube, installs respectively at the head of intaking (2) and play water head (3) at heat exchanger (1) both ends, be equipped with water inlet (21) on the head of intaking (2), be equipped with delivery port (31), its characterized in that on play water head (3): first shrouding (22) are installed to the tip of head of intaking (2), be equipped with filter screen section of thick bamboo (23) on first shrouding (22), filter screen section of thick bamboo (23) are located into head of intaking (2), the outer lane of filter screen section of thick bamboo (23) is laminated with the inner wall of the head of intaking (2) mutually, second shrouding (32) are installed to the tip of play water head (3).

2. A tube heat exchanger for facilitating cleaning according to claim 1, wherein: the water inlet (21) is obliquely arranged on the water inlet seal head (2), the inclination angle is 30-45 degrees, and the water outlet (31) is vertically arranged on the water outlet seal head (3).

3. A tube heat exchanger for facilitating cleaning according to claim 1, wherein: the first sealing plate (22) and the second sealing plate (32) are respectively blind flange.

4. A tube heat exchanger for facilitating cleaning according to claim 1, wherein: first shrouding (22) are installed at the tip of intaking head (2) through the ready-package clamp, the tip at play water head (3) is installed through the ready-package clamp in second shrouding (32), be equipped with recess (221) that correspond with the ready-package clamp on first shrouding (22) and second shrouding (32) respectively.

5. A tube heat exchanger for facilitating cleaning according to claim 3 or 4, wherein: the sealing structure is characterized in that rubber rings are respectively sealed between the first sealing plate (22) and the water inlet end socket (2) and between the second sealing plate (32) and the water outlet end socket (3).

6. A tube heat exchanger for facilitating cleaning according to claim 1, wherein: and a pressure monitoring meter (33) is also arranged on the water outlet end socket (3) or the water outlet (31).