CN212567014U

CN212567014U - Anti-scale U-shaped tube heat exchanger for heat exchange system

Info

Publication number: CN212567014U
Application number: CN202021133664.2U
Authority: CN
Inventors: 陈清章
Original assignee: Shanghai Quanhong Thermal Equipment Engineering Co ltd
Current assignee: Shanghai Quanhong Thermal Equipment Engineering Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-02-19
Anticipated expiration: 2030-06-17

Abstract

The utility model relates to a scale-proof U-shaped pipe heat exchanger for a heat exchange system, which belongs to the technical field of heat exchangers and comprises a pipe body and a shell which is hermetically communicated with one end of the pipe body, wherein a main clapboard is fixed at the joint of the shell and the pipe body, a plurality of U-shaped pipes are fixed on the main clapboard, the openings of the U-shaped pipes are all positioned in the pipe body, an auxiliary clapboard is fixed in the pipe body, the pipe body and the shell form a sealed inner space, a cold inlet pipe and a cold outlet pipe are hermetically communicated with the side wall of the pipe body, a hot inlet pipe and a hot outlet pipe are hermetically communicated with the side wall of the shell, the inner part of the pipe body is divided into a cold inlet cavity and a cold outlet cavity by the auxiliary clapboard, a baffle is fixedly connected in the cold inlet cavity, the inlet of all the U-shaped pipes is sealed by the baffle, a plurality of water flow holes are arranged on the baffle, scale-removing materials which are, thereby ensuring the normal operation effect of the U-shaped pipe heat exchanger.

Description

Anti-scale U-shaped tube heat exchanger for heat exchange system

Technical Field

The application relates to the technical field of heat exchangers, in particular to a scale-proof U-shaped tube heat exchanger for a heat exchange system.

Background

The U-shaped tube type heat exchanger is one of shell-and-tube type heat exchangers, and consists of tube plates, a shell, a tube bundle and other parts, wherein the heat exchange area of the U-shaped tube type heat exchanger is the largest under the condition of the same diameter; the structure is simple and compact, the sealing performance is high, the maintenance and the cleaning are convenient, the metal consumption is minimum under high temperature and high pressure, and the manufacturing cost is minimum; the U-shaped tube heat exchanger has only one tube plate, has good thermal compensation performance and stronger bearing capacity, and is suitable for operation under high-temperature and high-pressure working conditions.

The existing Chinese patent with reference to publication number CN201803619U discloses a U-shaped tube heat exchanger, which includes a plurality of U-shaped tubes, wherein the ends of the U-shaped tubes are welded and sealed on a tube plate, a partition plate is welded on the tube plate, and a cover is arranged on the tube plate, a heat exchanger shell is arranged outside the U-shaped tubes, a material outlet and a material inlet are arranged on the heat exchanger shell, and heat exchange materials can enter and fill the heat exchanger shell through the material inlet to exchange heat with media in the U-shaped tubes.

The above prior art solutions have the following drawbacks: because cold water flows through the U-shaped pipe for a long time, scale is easily formed in the U-shaped pipe, and negative effects are caused on the use of the U-shaped pipe heat exchanger.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a scale prevention U-shaped pipe heat exchanger for heat exchange system reaches and effectively prevents to produce the incrustation scale in the U-shaped pipe, and then guarantees the effect of U-shaped pipe heat exchanger normal operating.

The above utility model of this application aim at can realize through following technical scheme:

a scale-proof U-shaped tube heat exchanger for a heat exchange system comprises a tube body and a shell body which is hermetically communicated with one end of the tube body, wherein a main partition plate is fixed at the joint of the shell body and the tube body, a plurality of U-shaped tubes are fixed on the main partition plate, openings of the U-shaped tubes are all positioned in the tube body, an auxiliary partition plate is fixed in the tube body, an opening at one end of each U-shaped tube is positioned above the auxiliary partition plate, the other end of each U-shaped tube is positioned below the auxiliary partition plate, the tube body and the shell body form a closed inner space, a cold inlet tube and a cold outlet tube are hermetically communicated with the side wall of, the auxiliary partition plate divides the interior of the pipe body into a cold inlet cavity and a cold outlet cavity, a baffle is fixedly connected with the cold inlet cavity, inlets of all U-shaped pipes are sealed by the baffle, a plurality of water flowing holes are formed in the baffle, descaling materials which are easy to dissolve in water are placed in the upper surface of the auxiliary partition plate, and the descaling materials are located on one side, far away from the main partition plate, of the baffle.

By adopting the technical scheme, before the U-shaped tube heat exchanger is used, the descaling materials are firstly put into the cold inlet cavity through the cold inlet tube, so that the descaling materials are positioned on the auxiliary partition plate and positioned on one side of the baffle plate, which is far away from the main partition plate, after cold water is led into the cold inlet tube, the descaling materials can be continuously dissolved in the cold water, the water flowing hole can effectively prevent the descaling materials after being agglomerated from entering the U-shaped tube to cause blockage, the cold water with the descaling materials enters the U-shaped tube after passing through the water flowing hole, so that the descaling materials can clean and dissolve scale formed in the U-shaped tube when the cold water flows in the U-shaped tube, simultaneously, the scale can be effectively prevented from being formed in the U-shaped tube, the descaling materials can be regularly put into the cold inlet cavity according to actual conditions, the descaling materials in the cold inlet cavity can be kept sufficient, and the U-shaped tube heat exchanger can always achieve, the effect of effectively preventing incrustation scale from being generated in the U-shaped pipe and further ensuring normal operation of the U-shaped pipe heat exchanger is achieved.

The application is further configured to: the baffle is positioned between the main partition and one end, close to the main partition, of the inlet of the cold inlet pipe.

Through adopting above-mentioned technical scheme, the cold water that gets into from cold income pipe can receive blockking of baffle for cold water can be more abundant carry out the solution with the scale removal material, prevent effectively that most cold water from not having the direct entering U-shaped intraductal with the solution of scale removal material, and then make the solution of scale removal material can be better with cold water, and get into and carry out scale removal, scale control in the U-shaped pipe.

The application is further configured to: the water flow holes are in a circular truncated cone shape, the cross section area of one end, far away from the main partition plate, of each water flow hole is the largest, and the cross section area of one end, close to the main partition plate, of each water flow hole is the smallest.

By adopting the technical scheme, cold water on one side, far away from the main partition plate, of the baffle can enter the U-shaped pipe through the circular truncated cone-shaped water flowing holes more quickly and in a large area, and the efficiency of the cold water blended with the descaling materials entering the U-shaped pipe is improved.

The application is further configured to: the lateral wall that main baffle was kept away from to the body runs through there is the pivot, and the pivot is located external one end fixedly connected with drive arrangement, and drive arrangement supplies the pivot rotation, and the fixed cover of one end that the pivot is located the body is equipped with broken sword fan, and broken sword fan is close to the baffle and is located the one side that main baffle was kept away from to the baffle.

Through adopting above-mentioned technical scheme, start drive arrangement makes the pivot rotation, the pivot drives broken sword fan rotation, broken sword fan is close to the baffle, make the descaling material that condenses into the piece float and move gradually when moving to the baffle in cold income intracavity, can be broken into littleer volume by broken sword fan, make in the descaling material can be more quick dissolves into the cold water, and then effectively prevent that the descaling material from blockking up discharge orifice and U-shaped pipe, the while pivoted broken sword fan has accelerated the rivers speed of cold income intracavity, further improvement the efficiency of the solution of descaling material and cold water.

The application is further configured to: and the rotating shaft in the cold inlet cavity is fixedly sleeved with a plurality of crushing cutter fans which are distributed at equal intervals.

Through adopting above-mentioned technical scheme, a plurality of broken sword fans can go into the cold intracavity everywhere the descaling material that has condensed into the piece carries out the breakage, has prevented effectively that a large amount of descaling materials from condensing the bonding in the cold intracavity, has improved the availability factor of descaling material.

The application is further configured to: and a sealing sleeve is fixed between the rotating shaft and the pipe body and seals a gap between the rotating shaft and the pipe body.

Through adopting above-mentioned technical scheme, the setting of seal cover has effectively prevented that cold water from flowing from the gap between pivot and the body, and then has improved the leakproofness of body, has guaranteed U-shaped pipe heat exchanger's normal operating.

The application is further configured to: the inner wall of the shell is fixed with a plurality of guide plates, the guide plates are penetrated by the U-shaped pipes, the adjacent guide plates are distributed at intervals from top to bottom, and the inner space of the shell is divided into a snake shape by the guide plates.

Through adopting above-mentioned technical scheme, the guide plate is cut apart into the snake shape with casing inner space for the hot-fluid that needs the cooling that gets into from the heat income pipe is at the interior route greatly increased of casing flow, makes the intraductal cold water of U-shaped more abundant cool down the hot-fluid, has improved U-shaped heat exchanger's heat exchange efficiency.

The application is further configured to: and a reverse osmosis membrane is fixedly paved on the inner wall of the U-shaped pipe.

Through adopting above-mentioned technical scheme, reverse osmosis membrane can intercept the calcium magnesium ion of aquatic to fundamentally reduces the hardness of water, and the scale removal effect is obvious and stable, fixes reverse osmosis membrane before the U-shaped pipe is made and lays in advance, has reached the effect that prevents in advance that the internal incrustation scale of U-shaped pipe from forming.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the descaling materials are regularly put into the cold entering cavity according to actual conditions, and the cold entering cavity can also be kept sufficient in descaling materials, so that the effect of preventing scale can be always achieved when the U-shaped tube heat exchanger is used, the scale generated in the U-shaped tube is effectively prevented, and the normal operation effect of the U-shaped tube heat exchanger is further ensured;

2. the descaling materials can be more quickly dissolved into cold water after being crushed by the crushing cutter fan, so that the water flowing holes and the U-shaped pipe are effectively prevented from being blocked by the descaling materials, meanwhile, the rotating crushing cutter fan accelerates the water flowing speed in the cold flowing cavity, and the dissolving efficiency of the descaling materials and the cold water is further improved;

3. the guide plate cuts apart into the snake shape with casing inner space for the hot-fluid that needs the cooling that gets into from the heat income pipe is at the interior route greatly increased of casing flow, makes the intraductal cold water of U-shaped more abundant cool down the hot-fluid, has improved U-shaped heat exchanger's heat exchange efficiency.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a sectional view of the present embodiment;

FIG. 3 is a schematic view showing the structure of the sealing sleeve;

FIG. 4 is a sectional view showing a reverse osmosis membrane.

In the figure, 1, a tube body; 11. cold feeding the pipe; 12. a cold outlet pipe; 2. a housing; 21. heating the pipe; 22. a hot outlet pipe; 23. a baffle; 3. a main partition plate; 4. a U-shaped tube; 41. a reverse osmosis membrane; 5. a secondary partition plate; 51. cooling the mixture into the cavity; 52. cooling the cavity; 6. a drive device; 61. a rotating shaft; 62. a crushing cutter fan; 63. sealing sleeves; 7. a baffle plate; 71. a water flowing hole; 8. and (5) descaling materials.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1 and 2, for the anti-scale U-shaped tube heat exchanger for a heat exchange system disclosed by the present application, the anti-scale U-shaped tube heat exchanger comprises a horizontally arranged tube body 1 and a shell 2 hermetically communicated with one end of the tube body 1, a vertically arranged main partition plate 3 is fixed between the shell 2 and the tube body 1, the main partition plate 3 is located at the joint of the shell 2 and the tube body 1, a plurality of U-shaped tubes 4 are fixed on the main partition plate 3, the main body of the U-shaped tubes 4 is located in the shell 2, two openings of the U-shaped tubes 4 are both located at one side of the main partition plate 3 located in the tube body 1, a horizontally arranged auxiliary partition plate 5 is fixed at the middle part in the tube body 1, the inside of the tube body 1 is divided into a cold inlet cavity 51 and a cold outlet cavity 52 which are vertically arranged by the auxiliary partition plate 5, one end opening of the U-shaped tube 4 is located above the auxiliary partition plate 5, the other end is located below the auxiliary partition, the top and the bottom of the shell 2 are respectively communicated with a hot inlet pipe 21 and a hot outlet pipe 22 in a sealing way, the inner wall of the shell 2 is fixedly connected with a plurality of guide plates 23, the guide plates 23 are penetrated through by the U-shaped pipe 4, the vertical sectional area of each guide plate 23 is smaller than that of the shell 2, the adjacent guide plates 23 are distributed in a vertically staggered way, and the guide plates 23 divide the inner space of the shell 2 into a snake shape; through cold income pipe 11 toward cold pouring into cold water in chamber 51, cold water gets into in the U-shaped pipe 4 through cold income chamber 51, flow in the U-shaped pipe 4 after it gets into in cold play chamber 52 from its export, flow from cold exit tube 12 again, pour into the hot-fluid that needs the cooling in the hot income pipe 21 simultaneously, the hot-fluid is behind the route of snake shape in casing 2, make the hot-fluid can be more abundant cool down by the inside cold water of U-shaped pipe 4, flow out from hot exit tube 22 at last, can accomplish the heat transfer.

As shown in fig. 2 and 3, a baffle 7 vertically arranged is fixedly connected in the cold inlet chamber 51, the baffle 7 is positioned between the main partition plate 3 and one end of the cold inlet pipe 11 close to the main partition plate 3, the baffle 7 cuts off the cold inlet chamber 51 and seals the inlets of all the U-shaped pipes 4, a plurality of water flowing holes 71 are formed in the side wall of the baffle 7, the water flowing holes 71 are truncated cone-shaped, the cross-sectional area of one end of the water flowing hole 71 far away from the main partition plate 3 is the largest, the cross-sectional area of one end of the water flowing hole 71 close to the main partition plate 3 is the smallest, a descaling material 8 easily soluble in water is placed on the upper surface of the auxiliary partition plate 5, in this, since solid baking soda has not yet dissolved in water to form a baking soda solution, which is relatively expensive or other scale cleaning agents, so that the descaling cost can be greatly reduced, and the descaling material 8 is positioned on one side of the baffle 7 departing from the main partition 3; before the U-shaped tube heat exchanger is used, firstly, the descaling materials 8 are placed into the cold inlet cavity 51 through the cold inlet tube 11 and are located on the auxiliary partition plate 5, meanwhile, the descaling materials 8 are located on one side, away from the main partition plate 3, of the baffle plate 7, after the cold water enters the cold inlet tube 11, a large amount of cold water can be blocked by the baffle plate 7, the cold water can be more fused with the descaling materials 8, meanwhile, the water flowing holes 71 can effectively prevent the descaling materials 8 after caking from entering the U-shaped tube 4 to cause blockage, the descaling materials 8 dissolved in the cold water can dissolve and clean scale formed in the U-shaped tube 4 after entering the U-shaped tube 4, meanwhile, the scale can be effectively prevented from being formed on the inner wall of the U-shaped tube 4, and the effect of effectively preventing the scale from being generated in the U-shaped tube 4 and further.

As shown in fig. 2 and 3, a rotating shaft 61 horizontally penetrates through a side wall of the pipe body 1 away from the housing 2, the rotating shaft 61 is rotatably connected with the pipe body 1, one end of the rotating shaft 61 located outside is fixedly connected with a driving device 6, in this embodiment, the driving device 6 is a motor, the driving device 6 is fixed with the pipe body 1, a plurality of crushing blade fans 62 distributed at equal intervals are fixedly sleeved on the rotating shaft 61 located inside the pipe body 1, the crushing blade fans 62 are located on one side of the baffle 7 away from the main partition plate 3, a sealing sleeve 63 is arranged between the rotating shaft 61 and the pipe body 1, in this embodiment, the sealing sleeve 63 is made of rubber, and the sealing sleeve 63 seals a gap between the; the rotating shaft 61 is enabled to rotate by starting the driving device 6, the rotating shaft 61 drives all the crushing cutter fans 62 to rotate, the crushing cutter fans 62 crush the descaling materials 8 which are condensed into blocks, the descaling materials are dissolved in cold water more quickly, meanwhile, the descaling materials 8 which are condensed into blocks are effectively prevented from blocking the drain holes 71, the sealing sleeve 63 can effectively prevent the cold water from leaking out of the connection position of the rotating shaft 61 and the pipe body 1, and the normal operation of the U-shaped pipe heat exchanger is guaranteed.

As shown in fig. 4, reverse osmosis membranes 41 are fixedly laid on the inner walls of the U-shaped tubes 4, the reverse osmosis membranes 41 can intercept calcium and magnesium ions in water, so that the hardness of the water is reduced, most of components of the scale are calcium carbonate, magnesium hydroxide, magnesium carbonate, calcium sulfate and the like, the scale is effectively prevented from being formed on the inner walls of the U-shaped tubes 4, and the normal operation of the U-shaped tube heat exchanger is ensured.

The implementation principle of the embodiment is as follows: before the U-shaped tube heat exchanger is used, firstly, the descaling materials 8 are placed into the cold inlet cavity 51 through the cold inlet tube 11, then, cold water is poured into the cold inlet tube 11, so that the descaling materials 8 and the cold water are fused, the descaling materials 8 dissolved in the cold water enter the U-shaped tube 4 through the water flowing holes 71, scale formed in the U-shaped tube 4 is dissolved and cleaned, meanwhile, the scale can be effectively prevented from being formed on the inner wall of the U-shaped tube 4, the descaling materials 8 are regularly put into the cold inlet cavity 51 according to actual conditions, the descaling materials 8 can be kept sufficient in the cold inlet cavity 51, the U-shaped tube heat exchanger can always achieve the effect of preventing scale when in use, and further, the effect of effectively preventing the scale from being generated in the U-shaped tube 4 and further ensuring the normal operation of the U-shaped tube heat exchanger is achieved; if the descaling materials 8 are condensed into blocks, the driving device 6 can be started, the driving device 6 drives the rotating shaft 61 to rotate, and the rotating shaft 61 drives the crushing cutter fan 62 to crush the blocky descaling materials 8, so that the blocky descaling materials are more efficiently dissolved in cold water, and the descaling and antiscaling efficiency is ensured.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a scale prevention U-shaped pipe heat exchanger for heat exchange system, including body (1) and sealed intercommunication in casing (2) of body (1) one end, casing (2) are fixed with main baffle (3) with body (1) junction, be fixed with a plurality of U-shaped pipes (4) on main baffle (3), the opening of U-shaped pipe (4) all is located body (1), body (1) internal fixation has vice baffle (5), the one end opening of U-shaped pipe (4) is located vice baffle (5) top, the other end is located vice baffle (5) below, body (1) and casing (2) form confined inner space, body (1) lateral wall seal intercommunication has cold income pipe (11) and cold exit tube (12), casing (2) lateral wall seal intercommunication has hot income pipe (21) and hot exit tube (22), its characterized in that: vice baffle (5) are with body (1) inside division for cold go into chamber (51) and cold go out chamber (52), and the chamber (51) internal fixedly connected with baffle (7) are gone into to the cold, and baffle (7) are sealed the entry of all U-shaped pipes (4), have seted up a plurality of discharge orifices (71) on baffle (7), placed easily soluble in water scale removal material (8) in vice baffle (5) upper surface, and scale removal material (8) are located one side that main baffle (3) were kept away from in baffle (7).

2. A scale resistant U-tube heat exchanger for a heat exchange system according to claim 1 wherein: the baffle (7) is positioned between the main partition plate (3) and one end, close to the main partition plate (3), of the inlet of the cold inlet pipe (11).

3. A scale resistant U-tube heat exchanger for a heat exchange system according to claim 1 wherein: the water flowing holes (71) are in a circular truncated cone shape, the cross section area of one end, far away from the main partition plate (3), of each water flowing hole (71) is the largest, and the cross section area of one end, close to the main partition plate (3), of each water flowing hole (71) is the smallest.

4. A scale resistant U-tube heat exchanger for a heat exchange system according to claim 1 wherein: the lateral wall that main baffle (3) were kept away from in body (1) runs through pivot (61), and pivot (61) are located external one end fixedly connected with drive arrangement (6), and drive arrangement (6) supply pivot (61) rotation, and pivot (61) are located the fixed cover of one end in body (1) and are equipped with broken sword fan (62), and broken sword fan (62) are close to baffle (7) and are located one side that main baffle (3) were kept away from in baffle (7).

5. A scale resistant U-tube heat exchanger for a heat exchange system according to claim 4 wherein: a plurality of crushing cutter fans (62) are fixedly sleeved on a rotating shaft (61) in the cold inlet cavity (51), and the crushing cutter fans (62) are distributed at equal intervals.

6. A scale resistant U-tube heat exchanger for a heat exchange system according to claim 4 wherein: a sealing sleeve (63) is fixed between the rotating shaft (61) and the pipe body (1), and the sealing sleeve (63) seals a gap between the rotating shaft (61) and the pipe body (1).

7. A scale resistant U-tube heat exchanger for a heat exchange system according to claim 1 wherein: a plurality of guide plates (23) are fixed on the inner wall of the shell (2), the guide plates (23) are penetrated through by the U-shaped pipes (4), the adjacent guide plates (23) are distributed at intervals from top to bottom, and the inner space of the shell (2) is divided into a snake shape by the guide plates (23).

8. A scale resistant U-tube heat exchanger for a heat exchange system according to claim 1 wherein: and a reverse osmosis membrane (41) is fixedly paved on the inner wall of the U-shaped pipe (4).