Expandable plate heat exchanger

Abstract

The utility model discloses a plate heat exchanger capable of being expanded. The plate heat exchanger comprises a fixing assembly, a plurality of heat exchange plates arranged on the fixing assembly, an adjusting assembly arranged on the heat exchange plates and a detecting assembly arranged on the fixing assembly. The adjusting assembly comprises at least one middle partition plate and a plurality of switching valves used for adjusting the working area of the heat exchange plates, and the switching valves are fixed to the middle partition plates. Whether the plate heat exchanger is expanded or not is automatically selected through the heat exchange inlet and outlet detection assembly, the heat exchange area is adjusted according to different working conditions, the heat exchange efficiency of the heat exchanger is improved, and the heat exchange requirements of the different working conditions are greatly met.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, in particular to a plate heat exchanger with expandable capacity. Background Art

[0002] A plate heat exchanger is a highly efficient heat exchanger formed by stacking a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat exchange is carried out through the plates.

[0003] In the prior art, since the heat exchange area of the plate heat exchanger is fixed and cannot be adjusted according to the working conditions, during long-term use with the same heat exchange area, impurities and precipitates will adhere to the surface, forming scale and oil scale, which greatly reduces the heat transfer efficiency of the plate heat exchanger, resulting in insufficient heat exchange efficiency and affecting the basic use function of the heat exchanger. Therefore, the heat exchangers in the prior art can no longer meet the heat exchange requirements under different working conditions. Summary of the Utility Model

[0004] The utility model overcomes the deficiency that the heat exchange area of the heat exchanger in the prior art cannot be adjusted, and provides a plate heat exchanger with expandable capacity. To achieve the above purpose, the technical solution adopted by the utility model is: a plate heat exchanger with expandable capacity, which includes: a fixing component, a plurality of heat exchange plates arranged on the fixing component, an adjusting component arranged on the heat exchange plates, and a detection component arranged on the fixing component;

[0005] The adjusting component includes at least one intermediate partition plate and a plurality of switching valves for adjusting the working area of the heat exchange plates, and the switching valves are fixed on the intermediate partition plate.

[0006] In a preferred embodiment of the utility model, the fixing component includes an upper guide rod, a lower guide rod, a fixing plate, a movable plate and a column arranged between the upper guide rod and the lower guide rod, and the upper guide rod, the fixing plate, the lower guide rod and the column are connected end to end in sequence.

[0007] In a preferred embodiment of the utility model, the upper guide rod and the lower guide rod are arranged in parallel, and the fixing plate, the movable plate and the column are arranged in parallel.

[0008] In a preferred embodiment of the utility model, the fixing component further includes a clamping bolt, one end of the clamping bolt is connected to the fixing plate, and the other end is connected to the movable plate.

[0009] In a preferred embodiment of the utility model, a sewage discharge port is arranged at the bottom of the movable plate.

[0010] In a preferred embodiment of the utility model, a plurality of corner holes are arranged on the intermediate partition plate, and the switching valves are embedded in the corner holes.

[0011] In a preferred embodiment of the present utility model, there is a sealing surface on the switching valve, and the sealing surface and the plate surface of the intermediate partition are in the same plane.

[0012] In a preferred embodiment of the present utility model, the detection assembly includes a temperature sensor and a differential pressure sensor arranged on the fixed assembly, and the detection part of the differential pressure sensor is arranged at the bottom of the heat exchange plate.

[0013] The present utility model solves the defects existing in the background technology, and the present utility model has the following beneficial effects:

[0014] The present utility model automatically selects whether to expand the plate heat exchanger through the heat exchange inlet and outlet temperature sensors and the differential pressure sensor, adjusts the heat exchange area according to different working conditions, improves the heat exchange efficiency of the heat exchanger, and greatly meets the heat exchange requirements of different working conditions. When the electric switching valve is closed, the movable plate maintenance sewage outlet can be used to discharge sewage, remove impurities and clean the plate heat exchanger, which can enhance the heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0016] Figure 1 Schematic diagram of an automatic expansion plate heat exchanger described in an embodiment of the present utility model;

[0017] Figure 2 Schematic diagram of the switching valve of an automatic expansion plate heat exchanger described in an embodiment of the present utility model;

[0018] Figure 3 Schematic diagram of the intermediate partition of an automatic expansion plate heat exchanger described in an embodiment of the present utility model.

[0019] The following is an explanation of the reference numerals:

[0020] 101 - upper guide rod; 102 - lower guide rod; 103 - fixing plate; 104 - movable plate; 1041 - sewage outlet; 105 - clamping bolt; 20 - heat exchange plate; 301 - intermediate partition; 302 - switching valve; 401 - temperature sensor; 402 - differential pressure sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner. Therefore, they only show the components related to the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0022] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the protection scope of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0023] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

[0024] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant accompanying drawings. The preferred embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0025] The present utility model discloses an automatically expandable plate heat exchanger, wherein, as Figure 1 shown, it includes: a fixing component, a plurality of heat exchange plates 20 arranged on the fixing component, an adjusting component arranged on the heat exchange plates 20, and a detection component arranged on the fixing component.

[0026] The fixing component includes an upper guide rod 101, a lower guide rod 102, a fixing plate 103, a movable plate 104, and a number of clamping bolts 105 arranged between the upper guide rod 101 and the lower guide rod 102. The upper guide rod 101 and the lower guide rod 102 are arranged in parallel, and the fixing plate 103 and the movable plate 104 are arranged in parallel. A number of heat exchange plates 20 are parallel to the fixing plate 103 and the movable plate 104 and are arranged between the fixing plate 103 and the movable plate 104. A number of clamping bolts 105 are arranged in parallel with the upper guide rod 101 and the lower guide rod 102 and fix the heat exchange plates 20 to the fixing component. Specifically, one end of the clamping bolt 105 is connected to the fixing plate 103, and the other end is connected to the movable plate 104. When the position of the movable plate 104 needs to be adjusted, the clamping bolt 105 can be unscrewed for adjustment.

[0027] In addition, the fixing component further includes a column to enhance the stability and rigidity of the entire device. Specifically, the upper guide rod 101, the fixing plate 103, the lower guide rod 102, and the column are connected end to end in sequence to form a stable rectangular structure.

[0028] A sewage outlet 1041 is also provided on the movable plate 104 for discharging dirt.

[0029] The adjusting component includes at least one intermediate partition 301 arranged between the fixing plate 103 and the movable plate 104 and a switching valve 302 arranged on the intermediate partition 301. Figures 2 - 3 As shown, the intermediate partition 301 is arranged in parallel with the fixing plate 103, and a switching valve 302 is arranged on the intermediate partition 301. Specifically, a number of angular holes are provided on the intermediate partition 301, and the switching valve 302 is embedded in the angular holes. At least one switching valve 302 is arranged on one intermediate partition 301 to control the on-off inside the heat exchange plates 20. The switching valve 302 is an electric switching valve 302, and there is a sealing surface on the switching valve 302, which is flush with the intermediate partition 301.

[0030] Referring to Figure 1 , in an embodiment of the present invention, two intermediate partitions 301 are arranged between the fixing plate 103 and the movable plate 104, and two switching valves 302 are arranged on each intermediate partition 301 along the vertical direction.

[0031] The detection component includes a temperature sensor 401 and a differential pressure sensor 401 arranged on the fixing plate 103. The detection parts of the temperature sensor 401 and the differential pressure sensor 401 are both arranged inside the heat exchange plates 20, and the detection part of the differential pressure sensor 401 is arranged at the bottom of the heat exchange plates 20.

[0032] When the utility model works, it obtains the values of the temperature sensor 401 and the differential pressure sensor 401, determines the required heat exchange area, and thus adjusts the switching valve 302 to adjust the working area of the heat exchange plates 20. The temperature and differential pressure are monitored in real time, and the switching valve 302 is controlled to achieve the purpose of increasing the number of plates in the expanded plate heat exchanger. When the switching valve 302 is closed, the sewage outlet 1041 of the movable plate 104 is opened to clean the rear heat exchange plates 20 of sewage and impurities, improve the heat transfer coefficient, and further enhance the heat exchange effect.

[0033] The utility model automatically selects whether to expand the plate heat exchanger through the heat exchange inlet and outlet temperature sensor 401 and the differential pressure sensor 401, adjusts the heat exchange area according to different working conditions, improves the heat exchange efficiency of the heat exchanger, and greatly meets the heat exchange requirements of different working conditions. When the electric switching valve 302 is closed, the sewage outlet 1041 of the movable plate 104 is used for maintenance and sewage discharge, and the plate heat exchanger is cleaned of sewage and impurities, which can enhance the heat exchange effect.

[0034] The above embodiments only represent several implementation manners of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. An expandable plate heat exchanger, characterized in that: It comprises: a fixing component, a plurality of heat exchange plates arranged on the fixing component, a regulating component arranged on the heat exchange plates, and a detecting component arranged on the fixing component; The adjustment assembly includes at least one intermediate partition and a plurality of heat exchange plates. A working area switching valve is fixed on the middle partition.

2. The expandable plate heat exchanger according to claim 1, characterized in that: The fixing assembly comprises an upper guide rod, a lower guide rod, and a fixing plate, a movable plate and a column arranged between the upper guide rod and the lower guide rod. The upper guide rod, the fixing plate, the lower guide rod and the column are connected end to end in sequence.

3. The expandable plate heat exchanger according to claim 2, characterized in that: The upper guide rod and the lower guide rod are arranged in parallel, and the fixed plate, the movable plate and the column are arranged in parallel.

4. The expandable plate heat exchanger according to claim 2, characterized in that: The fixing assembly also includes a clamping bolt, one end of which is connected to the fixing plate, and the other end of which is connected to the movable plate.

5. The expandable plate heat exchanger according to claim 2, characterized in that: A sewage outlet is arranged at the bottom of the movable plate.

6. The expandable plate heat exchanger according to claim 1, characterized in that: The middle partition plate is provided with a plurality of corner holes, and the switching valve is embedded in the corner holes.

7. The expandable plate heat exchanger according to claim 1, characterized in that: The switching valve is provided with a sealing surface, and the sealing surface and the plate surface of the middle partition plate are located in the same plane.

8. The expandable plate heat exchanger according to claim 1, characterized in that: The detection component includes a temperature sensor and a differential pressure sensor arranged on the fixing component, and the detection part of the differential pressure sensor is arranged at the bottom of the heat exchange plate.

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