CN210802203U

CN210802203U - Fluid buffer mechanism for heat exchanger

Info

Publication number: CN210802203U
Application number: CN201921296629.XU
Authority: CN
Inventors: 韩旭; 王树凯; 张常玲; 肖东德
Original assignee: Tianjin Huasaier Heat Transfer Equipment Co ltd
Current assignee: Tianjin Huasaier Heat Transfer Equipment Co ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-06-19
Anticipated expiration: 2029-08-12

Abstract

The utility model provides a fluid buffer gear for heat exchanger relates to heat exchanger equipment field in the waste heat recovery, including multiunit strengthening rib, multiunit fastener, buffer board and multiunit backup pad, wherein, laid the through-hole on the buffer board to have the buffering clearance between buffer board and the connecting sleeve inner wall, when the fluid flows through buffer gear, some fluid passes the through-hole, the rest fluid passes the buffering clearance, makes the buffer water evenly get into heat transfer component, not only reduces the fluid and to heat transfer component's friction loss, and effectively improved heat exchange efficiency; the annular gap can dredge solid particles, so that the solid particles are prevented from being blocked on the buffer plate, and smoothness of the front end of the heat exchanger is guaranteed.

Description

Fluid buffer mechanism for heat exchanger

Technical Field

The utility model relates to a heat exchanger equipment field especially relates to a fluid buffer gear for heat exchanger among the waste heat recovery.

Background

The heat exchanger comprises a heat exchange element and an inlet and an outlet fixedly connected with the inlet and the outlet of the heat exchange element, the inlet and the outlet are connected with the heat exchange element through a conical or rectangular connecting sleeve, for example, a slurry cooler is generally vertically arranged on the outer side of a desulfurization tower, and a whole set of slurry cooling device needs to be arranged in a very limited installation space, so that a centrifugal pump is generally arranged below the slurry cooler, and can drive fluid to generate strong pulsating pressure load in work, and the pulsating pressure load is not easy to absorb in a short-distance pipeline and can be finally directly transferred to the heat exchange element of the heat exchanger; the periodic pressure pulsation load will cause strong impact force, easily cause the fatigue failure and the wearing and tearing destruction of heat transfer component, and then cause corrosion accident, at present, when the heat exchanger bears strong pulsation pressure load and impact force, can only be through reducing the power of centrifugal pump or piston pump, but will influence the waste heat recovery efficiency of heat exchanger like this, seriously influence waste heat recovery system's normal operating, how to reduce the impact of high-speed fluid to heat transfer component and guarantee that fluid flow becomes the problem that technical staff in the field await a urgent need to solve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a fluid buffer gear for heat exchanger, this fluid buffer gear has realized reducing the fluid to heat exchange element's friction loss, has effectively improved heat exchange efficiency moreover.

The utility model discloses a realize through following technical scheme: the utility model provides a fluid buffer gear for heat exchanger, including the multiunit strengthening rib, the multiunit fastener, buffer board and multiunit backup pad, the both ends and the inboard fixed connection of connecting sleeve of strengthening rib, buffer board and the lower surface of strengthening rib closely laminate, the fastener is fixed the buffer board on the strengthening rib, the inboard fixed connection of multiunit backup pad and connecting sleeve, the buffer board side is supported to the backup pad upper end, the through-hole has evenly been laid on the buffer board, the hoop clearance has between buffer board and the connecting sleeve, the annular clearance is used for passing through the fluid, and the width of annular clearance is greater than the diameter of through-hole.

According to the above technical solution, preferably, the fluid damper is located in the middle of the connection sleeve, and the damping plate is perpendicular to the central axis of the connection sleeve.

According to the technical scheme, preferably, the buffer plate consists of two groups of symmetrical impingement plate blocks.

According to the above technical solution, preferably, the length of the support plate is greater than the width of the annular gap and less than half of the width of the buffer plate.

According to the above technical solution, preferably, the fastener includes a clamp and a nut engaged with the clamp.

According to the technical scheme, preferably, the reinforcing ribs are rectangular straight plates, and the adjacent reinforcing ribs are arranged in parallel.

According to the above technical solution, preferably, the reinforcing ribs and the supporting plate are overlapped in the vertical direction, and the buffer plate is located between the reinforcing ribs and the supporting plate

The utility model has the advantages that: the buffer plate is provided with the through holes, and the buffer gap is formed between the buffer plate and the inner wall of the connecting sleeve, when fluid flows through the buffer mechanism, part of the fluid passes through the through holes, and the rest of the fluid passes through the buffer gap, so that buffer water uniformly enters the heat exchange element, the friction loss of the fluid to the heat exchange element is reduced, and the heat exchange efficiency is effectively improved; the annular gap can dredge solid particles, so that the solid particles are prevented from being blocked on the buffer plate, and smoothness of the front end of the heat exchanger is guaranteed.

Drawings

Fig. 1 shows a schematic structural view when mounted in a connecting sleeve according to an embodiment of the invention.

Fig. 2 shows a schematic top-view side structure according to an embodiment of the invention.

Fig. 3 shows a schematic bottom side structure according to an embodiment of the present invention.

Fig. 4 shows a schematic bottom view according to an embodiment of the present invention.

In the figure: 1. a heat exchange element; 2. a connecting sleeve; 3. reinforcing ribs; 4. a fastener; 401. clamping a hoop; 402. a nut; 5. a buffer plate; 501. impingement plates; 6. a support plate; 7. a through hole; 8. an annular gap; A. a fluid.

Detailed Description

In order to make the embodiment of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

The heat exchanger comprises a heat exchange element 1 and an inlet and an outlet fixedly connected with the inlet and the outlet of the heat exchange element 1, the inlet and the outlet of the heat exchange element 1 are rectangular inlets and outlets, and the inlet and the outlet of the heat exchanger are required to be connected with a circular pipeline, so that the inlet and the outlet of the heat exchanger are connected with the heat exchange element 1 through a conical or rectangular connecting sleeve 2, and the connecting sleeve 2 plays a transition role.

As shown in the figures, the utility model provides a fluid buffer gear for heat exchanger, including two sets of parallel strengthening ribs 3, four groups of fasteners 4, buffer plate 5 and four groups of backup pads 6, fastener 4 includes clamp 401 and the nut 402 that cooperatees with clamp 401, the both ends of strengthening rib 3 and the inboard fixed connection in connecting sleeve 2 middle part, the preferred welding mode of this department, buffer plate 5 and the lower surface of strengthening rib 3 are closely laminated, fastener 4 fixes buffer plate 5 on strengthening rib 3, although buffer plate 5 has certain intensity, but still be difficult to bear the long-term impact of high-speed fluid, therefore adopt strengthening rib 3 to set up the upside of buffer plate 5, play enhancement and spacing effect to buffer plate 5, prevent that buffer plate 5 from deforming and failing; a plurality of groups of supporting plates 6 are fixedly connected with the inner side of the connecting sleeve 2, the supporting plates 6 are positioned at the lower side of the reinforcing ribs 3, the upper ends of the supporting plates 6 support the side edge of the buffer plate 5, and through holes 7 are uniformly distributed on the buffer plate 5; an annular gap 8 is formed between the buffer plate 5 and the connecting sleeve 2, high-speed fluid driven by a centrifugal pump or a piston pump is buffered by the buffer plate 5, the high-speed fluid flows into the heat exchange element 1 through the through hole 7 and the annular gap 8, and the width of the annular gap 8 is larger than the diameter of the through hole 7, so that solid particles with the diameter larger than that of the through hole 7 can pass through the annular gap 8, and the annular gap 8 can prevent the solid particles in the fluid from being accumulated and blocked; buffer board 5 comprises the impingement block piece 501 of two sets of symmetries, and impingement block piece 501 can install in narrow and small space, unpacks apart the back easy access person and passes through to impingement block piece 501 passes through clamp 401 and nut 402 and is connected with strengthening rib 3, and the auxiliary mode is the welding, dismantles the back secondary installation comparatively simple swift.

Specific work flow

The installation process comprises the following steps: the buffer mechanism is mainly used for reforming the existing heat exchanger, all parts of the buffer mechanism can only enter from an inlet of the heat exchanger, and in consideration of the limited size of the inlet of the heat exchanger, firstly, a worker fixes two ends of a horizontal reinforcing rib 3 in the middle of a connecting sleeve 2 in a welding manner and sleeves a hoop 401 on the reinforcing rib 3; then, the impingement plate block 501 with the diameter smaller than that of the inlet of the heat exchanger is conveyed into the connecting sleeve 2, a worker fixes the impingement plate block 501 on the reinforcing rib 3 through the hoop 401 and a bolt matched with the hoop 401, and at the moment, an annular gap 8 is formed between the side edge of the impingement plate block 501 and the inner wall of the connecting sleeve 2; then the supporting plate 6 is close to the buffer plate 5 and is welded and fixed on the inner wall of the connecting sleeve 2, thereby completing the installation of the fluid buffer mechanism;

the use process comprises the following steps: the heat exchanger is vertically arranged under general conditions, fluid passes through the heat exchanger from bottom to top, and the heat exchange process is completed, when the fluid moves to the buffer mechanism, the fluid firstly contacts with the buffer plate 5, part of the fluid passes through a through hole 7 formed in the buffer plate 5, other parts of the fluid enter the heat exchange element 1 through the annular gap 8, the flow speed of the fluid is slowed down to a certain extent, and meanwhile, the main impact force of the fluid acts on the buffer plate 5, and the friction loss of the heat exchange element 1 is effectively reduced.

According to the above embodiment, preferably, the fluid buffer mechanism is located in the middle of the connection sleeve 2, so that the front side of the buffer plate 5 has enough buffer area, and the fluid can uniformly enter the heat exchange element 1 after being buffered; the buffer plate 5 is perpendicular to the central axis of the connecting sleeve 2, so that the impact force of the fluid is concentrated on the buffer plate 5, and the impact on the connecting sleeve 2 is reduced.

According to the above embodiment, it is preferable that the length of the support plate 6 is greater than the width of the annular gap 8 and less than half of the width of the buffer plate 5, so that the support plate 6 not only can stably support the buffer plate 5, but also facilitates the solid particles on the buffer plate 5 to pass through the annular gap 8, preventing accumulation on the buffer plate 5 and causing the front end of the heat exchanger to be blocked.

According to the above embodiment, preferably, the reinforcing ribs 3 are rectangular straight plates, the adjacent reinforcing ribs 3 are arranged in parallel, and the rectangular straight plates are vertically welded in the connecting sleeve 2, so that the torsional strength of the rectangular straight plates can be enhanced.

According to the above embodiment, it is preferable that the reinforcing ribs 3 and the support plate 6 are vertically overlapped, so that the buffer plate 5 can be stably locked between the reinforcing ribs 3 and the support plate 6, and the stability of the buffer plate 5 is enhanced.

The utility model has the advantages that: the buffer plate 5 is provided with the through holes 7, and the buffer gap is formed between the buffer plate 5 and the inner wall of the connecting sleeve 2, when fluid flows through the buffer mechanism, part of the fluid passes through the through holes 7, and the rest of the fluid passes through the buffer gap, so that the buffer water uniformly enters the heat exchange element 1, the friction loss of the fluid to the heat exchange element 1 is reduced, and the heat exchange efficiency is effectively improved; the annular gap 8 can dredge solid particles, prevent the solid particles from being blocked on the buffer plate 5, and ensure the smoothness of the front end of the heat exchanger.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a fluid buffer gear for heat exchanger, its characterized in that, includes multiunit strengthening rib, multiunit fastener, buffer board and multiunit backup pad, the both ends and the inboard fixed connection of connecting sleeve of strengthening rib, the buffer board closely laminates with the strengthening rib lower surface, the fastener is fixed the buffer board on the strengthening rib, the multiunit the inboard fixed connection of backup pad and connecting sleeve, backup pad upper end supports the buffer board side, evenly laid the through-hole on the buffer board, the annular gap has between buffer board and the connecting sleeve, the annular gap is used for through the fluid, and the width of annular gap is greater than the diameter of through-hole.

2. The fluid damper mechanism for a heat exchanger as claimed in claim 1, wherein the fluid damper mechanism is located at a middle portion of the connection sleeve, and the damper plate is perpendicular to a central axis of the connection sleeve.

3. The fluid damper mechanism for a heat exchanger as claimed in claim 2, wherein said damper plate is comprised of two sets of symmetrical impingement plate blocks.

4. A fluid damper mechanism for a heat exchanger as set forth in claim 3 wherein said support plate has a length greater than the width of the annular gap and less than one-half the width of the damper plate.

5. The fluid damper mechanism of claim 4, wherein the fastener comprises a band and a nut that engages the band.

6. The fluid damper mechanism for a heat exchanger according to claim 5, wherein the reinforcing ribs are rectangular straight plates, and adjacent reinforcing ribs are arranged in parallel.

7. The fluid damper mechanism for a heat exchanger as claimed in claim 6, wherein the reinforcing ribs are vertically coincident with the support plate, and the damper plate is located between the reinforcing ribs and the support plate.