Multi-medium jacket heating device of low-temperature scraper vacuum drying crystallizer

Abstract

The utility model discloses a multi-medium jacket heating device of a low-temperature scraper vacuum drying crystallizer, which comprises an outer-layer barrel, an inner-layer barrel is arranged in the outer-layer barrel, a jacket layer is arranged between the outer-layer barrel and the inner-layer barrel, the jacket layer is communicated with the inner-layer barrel, a high-temperature refrigerant inlet is arranged at the top of one end of the outer-layer barrel, and a high-temperature refrigerant outlet is arranged at the top of the other end of the outer-layer barrel. A low-temperature hot water outlet is formed in the symmetrical position below the high-temperature refrigerant inlet of the outer-layer barrel body, a low-temperature refrigerant outlet is formed in the symmetrical position below the high-temperature hot water inlet of the outer-layer barrel body, and the high-temperature refrigerant inlet is correspondingly communicated with the low-temperature refrigerant outlet. The double-medium heat exchanger has the advantages that the overall pressure bearing capacity is greatly improved, materials are rapidly preheated through double-medium heating of water heating and refrigerant heating, and the heat exchange speed is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vacuum drying crystallizer technical field, more specifically, especially relate to low temperature scraper vacuum drying crystallizer's multi -media jacket heating device. BACKGROUND

[0002] At present, in recent years along with the development of heat pump technology in the evaporation crystallization industry, the application of using heat pump heating and drying material is more and more widely, but because heat pump system compressor outlet temperature is low, when the moisture content of material in evaporation chamber gradually reduces, the heat absorbed by the evaporator of heat pump system gradually reduces, the compressor return gas volume reduces, and the outlet pressure gradually rises, which is prone to the phenomenon of compressor outlet high temperature and high pressure alarm and unable to run, and the material cannot be further dried. INNOVATION

[0003] In view of the deficiency of prior art, the utility model provides low temperature scraper vacuum drying crystallizer's multi -media jacket heating device to solve the problem in the background art.

[0004] To achieve the above object, the utility model discloses low temperature scraper vacuum drying crystallizer's multi -media jacket heating device, including outer cylinder, the inner layer cylinder is arranged in the outer cylinder, the jacket layer is arranged between the outer cylinder and the inner layer cylinder, the jacket layer is communicated with the inner layer cylinder, the high temperature refrigerant inlet is arranged at the top of one end of the outer cylinder, and the high temperature hot water inlet is arranged at the top of the other end, the low temperature hot water outlet is arranged at the symmetrical place below the high temperature refrigerant inlet of the outer cylinder, the low temperature refrigerant outlet is arranged at the symmetrical place below the high temperature hot water inlet of the outer cylinder, the high temperature refrigerant inlet is communicated with the low temperature refrigerant outlet, and the high temperature hot water inlet is communicated with the low temperature hot water outlet.

[0005] As an optional scheme of the utility model, the hot water heating system between the jacket layer and the outer cylinder is designed as a spiral flow hot water heating system, and the compressor refrigerant circulation system is in the jacket layer and is in and out from top to bottom, that is, the high temperature refrigerant inlet and the low temperature refrigerant outlet, and the circulating cooling water system is in the outer spiral flow circulation system and is in and out from bottom to top, that is, the high temperature hot water inlet and the low temperature hot water outlet.

[0006] As an optional scheme of the utility model, the jacket layer adopts a honeycomb structure design, the outer surface of the inner layer cylinder is also provided with a honeycomb structure corresponding to the jacket layer, and is sealingly welded with the jacket layer, to form an integral whole, the surface of the inner layer cylinder is provided with a flow-through hole, and the flow-through hole is located at the center of each honeycomb structure.

[0007] As an optional scheme of the utility model, the distance between the jacket layer and the outer layer cylinder is 5-10mm, the distance between the center points of the honeycomb structure is 60-100mm, and the honeycomb structure is arranged in a square shape.

[0008] The utility model provides a low temperature scraper vacuum drying crystallizer's multi -media jacket heating device, has the following beneficial effect:

[0009] Firstly, the internal jacket layer adopts the honeycomb jacket form, the honeycomb structure is evenly distributed between the inner layer cylinder and the jacket layer to strengthen the bearing capacity of the inner cylinder and the jacket, and the fluid collides with the honeycomb points multiple times to form local small vortex, which causes the medium flow in the cavity to form turbulent flow, destroys the original laminar flow layer and accelerates the heat exchange speed, the high temperature coolant inlet and the low temperature coolant outlet and the high temperature hot water inlet and the low temperature hot water outlet are arranged on the outer layer cylinder, the compressor coolant circulation system enters from the high temperature coolant inlet in the jacket layer, and then is discharged from the low temperature coolant outlet, the circulating cooling water system enters from the high temperature hot water inlet in the outer layer spiral flow circulation system, and then is discharged from the low temperature hot water outlet, and the characteristics of the material are better utilized to carry out sufficient heat exchange. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the structural schematic diagram of the utility model.

[0011] In the drawing: 1, outer layer cylinder;2, jacket layer;3, inner layer cylinder;4, high temperature coolant inlet;5, low temperature coolant outlet;6, high temperature hot water inlet;7, low temperature hot water outlet. DETAILED DESCRIPTION

[0012] The embodiment of the utility model is further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0013] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more;The orientation or position relationship indicated by the terms "up", "down", "left", "right", "in", "out", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0014] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term '' connected '' '' connection '' should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium.

[0015] Please refer to Figure 1 The utility model provides a technical scheme: low temperature scraper vacuum drying crystallizer's multi -media jacket heating device, including outer layer cylinder 1, the inner layer cylinder 3 is provided in outer layer cylinder 1, the jacket layer 2 is arranged between outer layer cylinder 1 and inner layer cylinder 3, the jacket layer 2 communicates inner layer cylinder 3, the outer layer cylinder 1 one end top is provided with high temperature refrigerant inlet 4, the other end top is provided with high temperature hot water inlet 6, the high temperature refrigerant inlet 4 below of outer layer cylinder 1 symmetry is provided with low temperature hot water outlet 7, the high temperature hot water inlet 6 below of outer layer cylinder 1 symmetry is provided with low temperature refrigerant outlet 5, the high temperature refrigerant inlet 4 and low temperature refrigerant outlet 5 correspond and communicate, the high temperature hot water inlet 6 and low temperature hot water outlet 7 correspond and communicate, the hot water heating system design between the jacket layer 2 and outer layer cylinder 1 is spiral flow hot water heating system, compressor refrigerant circulation system is in the jacket layer 2 and goes in and goes out, namely for high temperature refrigerant inlet 4 and low temperature refrigerant outlet 5, circulating cooling water system is in the outer layer spiral flow circulation system and goes in and goes out, namely for high temperature hot water inlet 6 and low temperature hot water outlet 7, better utilize the characteristics of material and carry out sufficient heat exchange.

[0016] The jacket layer 2 adopts a honeycomb structure design to enhance the bearing capacity of the inner layer cylinder 3 and the jacket layer 2. The outer surface of the inner layer cylinder 3 is also provided with a honeycomb structure corresponding to the jacket layer 2 and is sealingly welded with the jacket layer 2 to form an integral whole. The inner layer cylinder 3 is provided with flow-through holes at the centers of each honeycomb structure. The distance between the jacket layer 2 and the outer layer cylinder 1 is 5-10 mm, and preferably 10 mm. The distance between the centers of the honeycomb structures is 60-100 mm, and preferably 65 mm. The centers of the honeycomb structures are arranged in a square pattern. The jacket layer 2 with a honeycomb structure can increase the flow speed of fluid in the cavity under the condition that the medium supply condition remains unchanged. At the same time, the fluid collides with the honeycomb points multiple times to form local small vortexes, which leads to the formation of turbulent flow of the medium in the cavity, destroys the original laminar flow layer, and accelerates the heat exchange speed. Therefore, the jacket layer 2 with a honeycomb structure has higher heat exchange efficiency than the traditional integral jacket.

[0017] The specific use mode and effect of the embodiment are as follows:

[0018] First, the inner jacket layer 2 adopts a honeycomb jacket form, the honeycomb jacket container is an improvement of the ordinary jacket container, which is based on the whole jacket, and the honeycomb structure is uniformly distributed between the inner cylinder 3 and the jacket layer 2 to strengthen the bearing capacity of the inner cylinder and the jacket, the main function of the jacket layer 2 is to increase the flow velocity of the fluid in the cavity under the condition that the medium supply condition is unchanged, at the same time, the fluid will collide with the honeycomb point many times to form a local small vortex, which causes the medium flow in the cavity to form a turbulent flow, destroys the original laminar flow layer, and accelerates the heat exchange speed, the honeycomb jacket reactor has higher heat exchange efficiency than the traditional whole jacket, in addition, since the honeycomb bottom and the inner cylinder 3 are all welded, the honeycomb jacket and the inner cylinder 3 are connected to form a whole, so that the bearing capacity of the inner cylinder and the jacket can be effectively improved, the inner cylinder 3 does not need to consider the instability caused by the pressure in the jacket for external pressure design, the compressor refrigerant circulation system enters from the high-temperature refrigerant inlet 4 in the jacket layer 2, and then is discharged from the low-temperature refrigerant outlet 5, the circulating water system enters from the high-temperature hot water inlet 6 in the outer spiral flow circulation system, and then is discharged from the low-temperature hot water outlet 7, so that the characteristics of the material are better utilized for sufficient heat exchange.

[0019] The device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiments. Those skilled in the art can understand and implement without creative labor.

[0020] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-media jacket heating apparatus for a low temperature scraped surface vacuum drying crystallizer, characterized by: The application relates to a high-temperature heat exchange device, which comprises an outer layer cylinder (1), an inner layer cylinder (3) arranged in the outer layer cylinder (1), a jacket layer (2) arranged between the outer layer cylinder (1) and the inner layer cylinder (3), the jacket layer (2) being communicated with the inner layer cylinder (3), a high-temperature refrigerant inlet (4) arranged at the top of one end of the outer layer cylinder (1), a high-temperature hot water inlet (6) arranged at the top of the other end of the outer layer cylinder (1), a low-temperature hot water outlet (7) symmetrically arranged below the high-temperature refrigerant inlet (4) of the outer layer cylinder (1), a low-temperature refrigerant outlet (5) symmetrically arranged below the high-temperature hot water inlet (6) of the outer layer cylinder (1), the high-temperature refrigerant inlet (4) being communicated with the low-temperature refrigerant outlet (5) in correspondence, and the high-temperature hot water inlet (6) being communicated with the low-temperature hot water outlet (7) in correspondence.

2. The multi-media jacket heating apparatus for a low temperature wiped -film vacuum dryer crystallizer of claim 1, wherein: The hot water heating system between the jacket layer (2) and the outer layer cylinder (1) is designed as a spiral flow hot water heating system, a compressor refrigerant circulating system is arranged in the jacket layer (2) and circulates from top to bottom, that is, the high-temperature refrigerant inlet (4) is arranged at the top and the low-temperature refrigerant outlet (5) is arranged at the bottom, and a circulating cooling water system is arranged in the outer layer spiral flow circulating system and circulates from bottom to top, that is, the high-temperature hot water inlet (6) is arranged at the bottom and the low-temperature hot water outlet (7) is arranged at the top.

3. The multi-media jacket heating apparatus for a low temperature wiped -film vacuum dryer crystallizer of claim 1, wherein: The jacket layer (2) is designed as a honeycomb structure, the outer surface of the inner layer cylinder (3) is also provided with a honeycomb structure corresponding to the jacket layer (2) and is sealed and welded with the jacket layer (2) to form an integral whole, and the surface of the inner layer cylinder (3) is provided with a flow-through hole, the flow-through hole being located at the center of each honeycomb structure.

4. The multi-media jacket heating apparatus for a low temperature wiped -film vacuum dryer crystallizer of claim 3, wherein: The distance between the jacket layer (2) and the outer layer cylinder (1) is 5-10 mm, the distance between the center points of the honeycomb structures is 60-100 mm, and the honeycomb structures are arranged in a square shape.

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