Device for supporting bottom of plate heat exchanger

Abstract

A device for supporting the bottom of a plate heat exchanger belongs to the technical field of boiler supporting structures. The technical problems that in an existing waste heat boiler, a supporting structure of a water plate type heat exchanger is large in occupied space and prone to interfering with other equipment are solved. Comprising a supporting frame formed by connecting a plurality of vertical rods and horizontal rods and used for bearing the plate heat exchanger; the sliding connection structure is arranged between the plate heat exchanger and the horizontal rod and is used for compensating displacement caused by thermal expansion of the plate heat exchanger; the water collecting system comprises a groove formed in at least one horizontal rod, a water collecting tank placed in the groove, a supporting plate for supporting the water collecting tank and a drainage pipe communicated with the water collecting tank. The steel structure frame composed of the vertical rods and the horizontal rods is adopted, flexible adjustment can be achieved according to site space and equipment layout, adaptability is high, and the occupied space above the ground is small. The invention is used for heat exchanger bottom support.

Description

TECHNICAL FIELD

[0001] The application relates to a device for supporting a plate heat exchanger at the bottom and belongs to the technical field of boiler support structures. BACKGROUND

[0002] The power industry in China has been developing rapidly, and the energy field in the whole country is striving to move towards zero carbon. Heating is a major consumer of energy, and there is a great demand for heat in society. The situation of emission reduction is severe, and in order to achieve the double carbon goal, it is necessary to realize the transformation from fossil energy heating to zero-carbon waste heat.

[0003] Boiler waste heat resources are the best zero-carbon heat sources. In view of the above situation, the waste heat utilization reconstruction project of waste heat boilers has increased in recent years. The waste heat utilization of waste heat boilers generally increases a water plate heat exchanger at the outlet flue of the boiler. In order to reduce the influence on the original boiler structure, the water plate heat exchanger needs an independent support structure. The concrete structure can realize the functions of supporting and fixing the water plate heat exchanger. The distance from the outlet flue of the waste heat boiler to the chimney is relatively short. Due to the limited space above the ground, the load of the water plate heat exchanger is large, and the concrete structure occupies a lot of space. The concrete structure above the ground interferes with other equipment.

[0004] In summary, the existing waste heat boiler has the technical problems that the support structure of the water plate heat exchanger occupies a large space and is easy to interfere with other equipment. SUMMARY

[0005] The application is to solve the technical problems that the support structure of the water plate heat exchanger of the existing waste heat boiler occupies a large space and is easy to interfere with other equipment, and further puts forward a device for supporting a plate heat exchanger at the bottom, which comprises:

[0006] A support frame composed of a plurality of vertical rods and horizontal rods is used to support the plate heat exchanger.

[0007] A sliding connection structure is arranged between the plate heat exchanger and the horizontal rod to compensate for the displacement caused by the thermal expansion of the plate heat exchanger.

[0008] A water collecting system comprises a groove arranged on at least one horizontal rod, a water collecting tank placed in the groove, a support plate supporting the water collecting tank, and a drain pipe communicating with the water collecting tank.

[0009] As another improvement of the application, the sliding connection structure comprises a polytetrafluoroethylene plate arranged between the bottom of the plate heat exchanger and the horizontal rod.

[0010] As another improvement of the application, the vertical rod is a box-shaped structure.

[0011] As another improvement of the present application, the vertical pole and the horizontal pole are fixedly connected, the bottom of the vertical pole is provided with a bottom connecting plate, and the vertical pole is hingedly connected to the foundation through the bottom connecting plate.

[0012] As another improvement of the present application, the foundation is a concrete foundation.

[0013] As another improvement of the present application, the bottom connecting plate is fixed to the foundation through an anchor assembly, the anchor assembly is arranged in such a way that the vertical pole can slightly rotate relative to the foundation, and the anchor assembly is arranged in such a way that horizontal force and vertical force are transmitted.

[0014] As another improvement of the present application, the number of the water collecting tank support plates is determined according to the size and bearing requirement of the water collecting tank.

[0015] As another improvement of the present application, the drain pipe transports the condensate water collected by the water collecting tank to an external water treatment system.

[0016] As another improvement of the present application, the number and arrangement of the vertical poles and the horizontal poles can be adjusted according to the width of the plate heat exchanger and the space condition on site.

[0017] As another improvement of the present application, the material of the support frame is steel.

[0018] The present application has the following advantages:

[0019] 1. The bottom support structure and the condensate water collecting system are integrated, and the double requirements of support and drainage are solved.

[0020] 2. The steel structure frame composed of the vertical pole and the horizontal pole can be flexibly adjusted according to the space on site and the equipment layout, and has strong adaptability; the structure occupies less space above the ground, and the support form of the steel structure can be flexibly designed according to the actual situation on site, so that the owner can complete the modification of the waste heat boiler waste heat utilization more flexibly. The steel structure can be processed in a manufacturing plant, and only the connection of the corresponding rod members is completed on site, so that the workload on site is reduced.

[0021] 3. The polytetrafluoroethylene plate is arranged between the heat exchanger and the support horizontal pole to form a sliding connection, and the displacement caused by the thermal expansion of the heat exchanger is effectively absorbed. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of a device for bottom support of a plate heat exchanger.

[0023] Figure 2 is a side view schematic view of a device for bottom support of a plate heat exchanger.

[0024] Figure 3 is a schematic view of the device for supporting the bottom of the plate heat exchanger from above.

[0025] Figure 4 is a schematic view of the box structure of the vertical rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the examples of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] Specific embodiment one: combined with Figures 1 to 4 In this embodiment, the device for supporting the bottom of the plate heat exchanger comprises:

[0028] a support frame composed of a plurality of vertical rods 1 and horizontal rods 2, for supporting the plate heat exchanger;

[0029] a sliding connection structure arranged between the plate heat exchanger and the horizontal rods 2, for compensating the displacement caused by the thermal expansion of the plate heat exchanger;

[0030] a water collecting system comprising a groove arranged on at least one horizontal rod 2, a water collecting tank 3 placed in the groove, a support plate 4 supporting the water collecting tank 3, and a drain pipe 5 communicating with the water collecting tank 3.

[0031] The bottom support structure and the condensate water collecting system are integrated, solving the dual needs of support and drainage.

[0032] The steel structure frame composed of vertical rods and horizontal rods can be flexibly adjusted according to the site space and equipment layout, and has strong adaptability. The structure occupies less space above the ground, and the support form of the steel structure can be flexibly designed according to the actual situation on site, which is more flexible to cooperate with the owner to complete the modification of waste heat boiler waste heat utilization. The steel structure can be processed in the manufacturing plant, and only the connection of the corresponding rod members is completed on site, reducing the workload on site.

[0033] By arranging the sliding connection structure between the heat exchanger and the support horizontal rod, a sliding connection is formed, effectively absorbing the displacement caused by the thermal expansion of the heat exchanger.

[0034] Specific embodiment two: combined with Figures 1 to 4The difference between this embodiment and the first embodiment is that the sliding connection structure comprises a polytetrafluoroethylene plate 7 arranged between the bottom of the plate heat exchanger and the horizontal rod 2. By arranging the polytetrafluoroethylene plate between the heat exchanger and the supporting horizontal rod, a sliding connection is formed, which effectively absorbs the displacement caused by the thermal expansion of the heat exchanger. The other components and connection methods are the same as those of the first embodiment.

[0035] Embodiment three: combination Figures 1 to 4 The difference between this embodiment and the first embodiment is that the vertical rod 1 is in the form of a box. The box has a rectangular cross-section. It can provide a larger cross-sectional moment of inertia and bending modulus under the premise of occupying a smaller plane. As a heavy-duty column, it prevents instability and improves the stability of the vertical rod. The other components and connection methods are the same as those of the first or second embodiment.

[0036] Embodiment four: combination Figures 1 to 4 The difference between this embodiment and the first embodiment is that the vertical rod 1 is connected to the horizontal rod 2 by a fixed connection, and the bottom of the vertical rod 1 is provided with a bottom connecting plate 6, which is hinged to the foundation. This releases the bending moment and mainly transmits the vertical and horizontal forces. The other components and connection methods are the same as those of any one of the first to third embodiments.

[0037] Embodiment five: combination Figures 1 to 4 The difference between this embodiment and the first embodiment is that the foundation is a concrete foundation. The other components and connection methods are the same as those of any one of the first to fourth embodiments.

[0038] Embodiment six: combination Figures 1 to 4 The difference between this embodiment and the first embodiment is that the bottom connecting plate 6 is fixed to the foundation by an anchor bolt assembly. The arrangement of the anchor bolt assembly allows the vertical rod 1 to rotate slightly relative to the foundation, and the arrangement of the anchor bolt assembly transmits horizontal and vertical forces. This connection method, which is fixed by an anchor bolt assembly and allows slight rotation, is commonly referred to as hinged or simply supported connection in the art. Its function is to release the bending moment through this connection method and mainly transmit the vertical and horizontal forces. The other components and connection methods are the same as those of any one of the first to fifth embodiments.

[0039] Embodiment seven: combination Figures 1 to 4 The difference between this embodiment and the first embodiment is that the number of support plates 4 of the water collecting tank 3 is determined according to the size and load bearing requirements of the water collecting tank 3. The other components and connection methods are the same as those of any one of the first to sixth embodiments.

[0040] Embodiment eight: combinationFigures 1 to 4 The embodiment is described as follows. The difference between the embodiment and the first embodiment is that the drain pipe 5 transports the condensed water collected by the water collecting tank 3 to an external water treatment system. The other components and connection modes are the same as those in any one of the first to seventh embodiments.

[0041] The ninth embodiment is described as follows. Figures 1 to 4 The embodiment is described as follows. The difference between the embodiment and the first embodiment is that the number and arrangement of the vertical rods 1 and the horizontal rods 2 can be adjusted according to the width of the plate heat exchanger and the space condition on site. The other components and connection modes are the same as those in any one of the first to eighth embodiments.

[0042] The tenth embodiment is described as follows. Figures 1 to 4 The embodiment is described as follows. The difference between the embodiment and the first embodiment is that the material of the support frame is steel. The steel structure frame composed of the vertical rods and the horizontal rods can be flexibly adjusted according to the space on site and the equipment layout, and has strong adaptability. The structure occupies less space above the ground, and the support form of the steel structure can be flexibly designed according to the actual situation on site, so that the waste heat boiler waste heat utilization modification can be more flexibly completed by the owner. The steel structure can be processed in a manufacturing plant, and only the connection of the corresponding rod members is completed on site, so that the workload on site is reduced.

[0043] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the same. Although the present application is described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents. The modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for supporting the bottom of a plate heat exchanger, characterized in that It comprises: a support frame composed of several vertical rods (1) and horizontal rods (2) connected to each other, for supporting plate heat exchangers; a sliding connection structure arranged between the plate heat exchangers and the horizontal rods (2), for compensating displacement of the plate heat exchangers caused by thermal expansion; a water collecting system comprising grooves arranged on at least one horizontal rod (2), a water collecting tank (3) placed in the grooves, a support plate (4) supporting the water collecting tank (3), and a drain pipe (5) communicating with the water collecting tank (3).

2. A device for supporting the bottom of a plate heat exchanger according to claim 1, characterized in that The sliding connection structure comprises a polytetrafluoroethylene plate (7) arranged between the bottom of the plate heat exchanger and the horizontal rod (2).

3. A device for supporting the bottom of a plate heat exchanger according to claim 1, characterized in that The vertical rod (1) is in a box type structure.

4. A device for supporting the bottom of a plate heat exchanger according to claim 1, characterized in that The vertical rod (1) and the horizontal rod (2) are fixedly connected, the bottom of the vertical rod (1) is provided with a bottom connecting plate (6), and the vertical rod (1) is hinged to the foundation through the bottom connecting plate (6).

5. A device for supporting the bottom of a plate heat exchanger according to claim 4, characterized in that The foundation is a concrete foundation.

6. A device for supporting the bottom of a plate heat exchanger according to claim 4, characterized in that The bottom connecting plate (6) is fixed to the foundation through an anchor bolt assembly, the arrangement mode of the anchor bolt assembly enables the vertical rod (1) to slightly rotate relative to the foundation, and the arrangement mode of the anchor bolt assembly is for transmitting horizontal force and vertical force.

7. A device for supporting the bottom of a plate heat exchanger according to claim 1, characterized in that The number of the support plates (4) of the water collecting tank (3) is determined according to the size and bearing requirement of the water collecting tank (3).

8. A device for supporting the bottom of a plate heat exchanger according to claim 1, characterized in that The drain pipe (5) transports the condensate water collected by the water collecting tank (3) to an external water treatment system.

9. A device for supporting the bottom of a plate heat exchanger according to claim 1, characterized in that The number and arrangement mode of the vertical rod (1) and the horizontal rod (2) can be adjusted according to the width of the plate heat exchanger and the space condition on site.

10. A device for supporting the bottom of a plate heat exchanger according to claim 1, characterized in that The material of the support frame is steel.

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