Mixed heat exchange equipment

Abstract

The utility model relates to the technical field of papermaking additive production, in particular to mixed heat exchange equipment which comprises an equipment shell, four sets of suspension structures are installed in the equipment shell in a penetrating mode, a heat exchange structure is relatively and fixedly installed in the equipment shell through the suspension structures, and the equipment shell comprises a shell body. The heat exchange structure comprises a hot liquid pipe disc, the middle of the hot liquid pipe disc is sleeved with a plurality of heat exchange pieces at equal intervals, and extension grooves are formed in the side surfaces of the heat exchange pieces. According to the utility model, a group of heat conduction liquid participating in papermaking additive production is introduced into the hot liquid pipe disc, and then two groups of heat conduction liquid are introduced into the shell, so that the hot liquid pipe disc and the heat exchange sheets are completely soaked, and heat in the group of heat conduction liquid in the hot liquid pipe disc is transferred to the two groups of heat conduction liquid; and the heat is transferred to other auxiliary production and processing equipment through the discharged two groups of heat conduction liquid to participate in the production step needing the heat, waste heat generated during auxiliary production is recycled, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking auxiliary agent production, in particular to a mixed heat exchange device. Background Art

[0002] Mixing heat exchange equipment is a heat exchanger that transfers heat by mixing two or more fluids. This equipment is widely used in chemical, petroleum, food, pharmaceutical, energy and many other industrial fields for heating, cooling or simultaneous heating and cooling. It plays an important role in the production of papermaking additives and is used in various production steps of papermaking additives involving heat.

[0003] The most commonly used type of heat exchanger, the shell and tube heat exchanger, consists of a series of parallel tubes. The fluid flows inside the tubes, while another fluid flows in the shell outside the tubes. The main way to improve the heat exchange efficiency of this type of heat exchanger is to increase the number of tubes to increase the heat exchange contact surface. However, the increase in the number of tubes while the input and output pipes always maintain a single channel will disperse the fluid and affect the flow effect of the fluid inside the tube. Utility Model Content

[0004] The purpose of the utility model is to provide a hybrid heat exchange device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hybrid heat exchange device comprises a device shell, four groups of suspension structures are installed inside the device shell, a heat exchange structure is relatively fixedly installed inside the device shell through the suspension structure, the device shell comprises a shell, the heat exchange structure comprises a hot liquid tube coil, a plurality of heat exchange fins are equidistantly sleeved in the middle of the hot liquid tube coil, and an expansion groove is provided on the side surface of the heat exchange fin.

[0007] Furthermore, a clamping edge is fixedly installed at the edge of the upper opening of the shell, a sealing cover is clamped at the clamping edge, and a sealing ring is sleeved at the bottom edge of the sealing cover.

[0008] Furthermore, a liquid inlet interface is fixedly installed on one edge of the upper surface of the cover, a liquid outlet interface is fixedly installed on one edge of the lower surface of the shell, rack mounting holes are interspersed at the four corners of the two side surfaces of the shell, and pipe disc protrusion holes are opened on the upper and lower edges of one side surface of the shell.

[0009] Furthermore, the upper end of the hot liquid tube coil is fixedly connected with a liquid inlet, the lower end of the hot liquid tube coil is fixedly connected with a liquid outlet, and rack rod slots are inserted at the four corners of the heat exchange plate.

[0010] Furthermore, the suspension structure includes a suspension rod, and the number of the suspension rods is four. Several spacer washers are sleeved on the side surfaces of the suspension rods. Support rings are sleeved on the side surfaces of the suspension rods near both ends. Threads are opened on both ends of the suspension rod, and nuts are screwed on the threads. Sealing washers are fixedly installed on both side surfaces of the support ring and the inner surface of the nut.

[0011] Furthermore, the four hanging rack rods and the rack rod slots are inserted and sleeved with each other, a plurality of the spacer washers are located between a plurality of heat exchange plates, and the threaded openings at both ends of the four hanging rack rods pass through the rack rod mounting holes and protrude from both sides of the shell.

[0012] Furthermore, the liquid inlet and the liquid outlet protrude from one side of the shell through the tube plate protrusion hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. A group of heat transfer fluids involved in the production of papermaking additives are passed into the hot liquid tube coil, and the waste heat generated during the production of papermaking additives is transferred to each heat exchange plate. Then, two groups of heat transfer fluids are passed into the shell to completely immerse the hot liquid tube coil and the heat exchange plates. The heat in the first group of heat transfer fluids in the hot liquid tube coil is transferred to the second group of heat transfer fluids. The heat exchange plates increase the actual contact area between the overall heat exchange structure and the two groups of heat transfer fluids, thereby improving the heat transfer efficiency. At the same time, the concave and convex surface state constructed by the extended grooves on the side surface of the heat exchange plates increases the actual surface area of ​​the heat exchange plates, further improving the heat transfer efficiency. At the same time, the concave and convex surface makes the overall thickness of the heat exchange plates no longer uniform, thereby generating a certain temperature difference on the surface of the heat exchange plates, further improving the heat transfer speed. The heat is then transferred to other additive production and processing equipment through the discharged two groups of heat transfer fluids to participate in the production steps that require heat. The waste heat during the production of additives is recycled and utilized to achieve energy-saving effects.

[0015] 2. The hanging rods are also made of heat-insulating materials. The heat exchange structure is suspended and installed inside the shell through four hanging rods. At the same time, the heat exchange plates are spaced at the same distance through spacer washers to prevent the shell from covering the heat exchange plates and the heat exchange plates from being too close to each other, affecting heat dissipation.

[0016] 3. In addition to the heat recovery effect mentioned above, the two ends of the hot liquid tube coil can also be connected to the constant temperature structure in the reactor in the chemical reaction of papermaking additive production. The two groups of heat-conducting fluids are connected to the heating structure and the cooling structure. By controlling the temperature of the two groups of heat-conducting fluids, one group of heat-conducting fluids can be heated or cooled to achieve a constant temperature effect and provide the temperature conditions required for certain chemical reactions. It has various uses and can adjust the installation method and the delivery channels of the first and second groups of heat-conducting fluids according to the needs of use. It is used in multiple production steps of papermaking additive production that require heat participation and has a certain degree of versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the device housing in the utility model;

[0019] Figure 3 It is a schematic diagram of the heat exchange structure and the suspension structure in the utility model;

[0020] Figure 4 It is a schematic diagram of the heat exchange plate in the utility model.

[0021] In the figure: 1. Equipment shell; 101. Shell; 102. Card edge; 103. Cover; 104. Sealing ring; 105. Liquid inlet interface; 106. Liquid outlet interface; 107. Pole mounting hole; 108. Tube coil probe hole; 2. Heat exchange structure; 201. Hot liquid tube coil; 202. Liquid inlet; 203. Liquid outlet; 204. Heat exchange plate; 205. Extension groove; 206. Pole slot; 3. Suspension structure; 301. Suspension pole; 302. Spacer washer; 303. Support ring; 304. Thread; 305. Nut. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 4 In an embodiment of the utility model, a hybrid heat exchange device includes an equipment housing 1, four groups of suspension structures 3 are installed inside the equipment housing 1, a heat exchange structure 2 is relatively fixedly installed inside the equipment housing 1 through the suspension structure 3, the equipment housing 1 includes a shell 101, the heat exchange structure 2 includes a hot liquid tube coil 201, a plurality of heat exchange fins 204 are equidistantly sleeved in the middle of the hot liquid tube coil 201, and an expansion groove 205 is opened on the side surface of the heat exchange fin 204.

[0024] Specifically, a group of heat transfer fluids involved in the production of papermaking additives is introduced into the hot liquid tube coil 201, and the waste heat generated during the production of papermaking additives is transferred to each heat exchange plate 204. Then, two groups of heat transfer fluids are introduced into the shell 101 to completely immerse the hot liquid tube coil 201 and the heat exchange plates 204. The heat in the group of heat transfer fluids in the hot liquid tube coil 201 is transferred to the two groups of heat transfer fluids. The heat exchange plates 204 increase the actual contact area between the heat exchange structure 2 as a whole and the two groups of heat transfer fluids, thereby improving the heat transfer efficiency. At the same time, the extended grooves 205 form a concave-convex surface state on the side surface of the heat exchange plate 204, thereby increasing the actual surface area of ​​the heat exchange plate 204 and further improving the heat transfer efficiency. At the same time, the concave-convex surface makes the overall thickness of the heat exchange plate 204 no longer uniform, thereby generating a certain temperature difference on the surface of the heat exchange plate 204, further improving the heat transfer speed. Then, the heat is transferred to other additive production and processing equipment through the discharged two groups of heat transfer fluids to participate in the production steps requiring heat. The waste heat during the production of the additives is recycled and utilized, thereby achieving energy-saving effects.

[0025] Embodiment 1

[0026] like Figure 1-2 As shown, in this embodiment, a clamping edge 102 is fixedly installed at the upper opening edge of the shell 101 , a sealing cover 103 is clamped at the clamping edge 102 , and a sealing ring 104 is sleeved on the bottom edge of the sealing cover 103 .

[0027] In this embodiment, the cover 103 is relatively fixed and clamped at the clamping edge 102 by a bolt structure to seal the shell 101. At the same time, the shell 101 and the cover 103 are made of heat-insulating materials as a mixed heat exchange place.

[0028] like Figure 1-3 As shown, in the present embodiment, a liquid inlet interface 105 is fixedly installed on one edge of the upper surface of the cover 103, a liquid outlet interface 106 is fixedly installed on one edge of the lower surface of the shell 101, rack mounting holes 107 are interspersed at the four corners of the two side surfaces of the shell 101, and a tube disc protrusion hole 108 is opened on the upper and lower edges of the one side surface of the shell 101, the upper end of the hot liquid tube disc 201 is fixedly connected to a liquid inlet 202, and the lower end of the hot liquid tube disc 201 is fixedly connected to a liquid outlet 203, and the liquid inlet 202 and the liquid outlet 203 protrude from one side of the shell 101 through the tube disc protrusion hole 108.

[0029] During specific implementation, two groups of heat transfer liquids enter from the liquid inlet interface 105, cover and soak the heat exchange structure 2 inside the equipment housing 1, and are then discharged through the liquid outlet interface 106. One group of heat transfer liquids enters the hot liquid pipe coil 201 from the liquid inlet 202 and is discharged from the liquid outlet 203.

[0030] Embodiment 2

[0031] On the basis of the first embodiment, in order to supplement the specific installation method of the heat exchange structure 2 as a whole inside the equipment housing 1 which is not mentioned in the first embodiment.

[0032] like Figure 1-4 As shown, in the present embodiment, rod slots 206 are provided at the four corners of the heat exchange plate 204; the suspension structure 3 comprises a suspension rod 301, and the number of the suspension rods 301 is four. A plurality of spacer washers 302 are sleeved on the side surfaces of the suspension rods 301, and support rings 303 are sleeved on the side surfaces of the suspension rods 301 near both ends. Threads 304 are provided at both ends of the suspension rod 301, and nuts 305 are screwed and installed at the threads 304, and sealing washers are fixedly installed on the two side surfaces of the support ring 303 and the inner surfaces of the nuts 305; the four suspension rods 301 are inserted and sleeved with the rod slots 206, and a plurality of spacer washers 302 are located between the plurality of heat exchange plates 204, and the threads 304 at both ends of the four suspension rods 301 pass through the rod mounting holes 107 and protrude out of the two sides of the shell 101.

[0033] In specific implementation, the hanging rods 301 are also made of heat-insulating materials. The heat exchange structure 2 is suspended as a whole inside the shell 101 through four hanging rods 301. At the same time, the heat exchange plates 204 are spaced at the same distance through the spacing washers 302 to prevent the shell 101 from covering the heat exchange plates 204 and the heat exchange plates 204 from being too close to each other, thereby affecting heat dissipation.

[0034] In the utility model, in addition to the mentioned heat recovery effect, the two ends of the hot liquid pipe coil 201 can also be interconnected with the constant temperature structure in the reactor in the chemical reaction of papermaking auxiliary agent production, and the two groups of heat-conducting liquids are interconnected with the heating structure and the cooling structure, so that the temperature of the two groups of heat-conducting liquids can be controlled to heat or cool one group of heat-conducting liquids, thereby achieving a constant temperature effect and providing the temperature conditions required for certain chemical reactions. It has various uses and can adjust the installation method and the delivery channels of one or two groups of heat-conducting liquids according to the requirements of use. It is applied to multiple production steps in the production of papermaking auxiliary agents that require heat participation, and has a certain degree of versatility.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hybrid heat exchange device, comprising a device housing (1), characterized in that: Four groups of suspension structures (3) are installed in the device housing (1) in an interlaced manner. A heat exchange structure (2) is relatively fixedly installed in the device housing (1) via the suspension structures (3). The device housing (1) comprises a shell (101). The heat exchange structure (2) comprises a hot liquid pipe coil (201). A plurality of heat exchange fins (204) are sleeved at equal distances in the middle of the hot liquid pipe coil (201). An expansion groove (205) is provided on the side surface of the heat exchange fin (204).

2. A hybrid heat exchange device according to claim 1, characterized in that: A clamping edge (102) is fixedly mounted at the upper opening edge of the shell (101), a sealing cover (103) is clamped at the clamping edge (102), and a sealing ring (104) is sleeved at the bottom edge of the sealing cover (103).

3. A hybrid heat exchange device according to claim 2, characterized in that: A liquid inlet interface (105) is fixedly mounted on one edge of the upper surface of the cover (103), a liquid outlet interface (106) is fixedly mounted on one edge of the lower surface of the shell (101), rack mounting holes (107) are interspersed at the four corners of the two side surfaces of the shell (101), and pipe coil protrusion holes (108) are opened on the upper and lower edges of one side surface of the shell (101).

4. A hybrid heat exchange device according to claim 3, characterized in that: The upper end of the hot liquid pipe coil (201) is fixedly connected to a liquid inlet (202), the lower end of the hot liquid pipe coil (201) is fixedly connected to a liquid outlet (203), and rack rod slots (206) are interspersed at the four corners of the heat exchange plate (204).

5. A hybrid heat exchange device according to claim 4, characterized in that: The suspension structure (3) comprises a suspension rod (301), wherein the number of the suspension rods (301) is four, a plurality of spacer washers (302) are sleeved on the side surface of the suspension rod (301), a support ring (303) is sleeved on the side surface of the suspension rod (301) near both ends, threads (304) are provided at both ends of the suspension rod (301), nuts (305) are screwed and installed at the threads (304), and sealing washers are fixedly installed on the two side surfaces of the support ring (303) and the inner surface of the nut (305).

6. A hybrid heat exchange device according to claim 5, characterized in that: The four hanging rack rods (301) and the rack rod slots (206) are inserted and sleeved with each other, a plurality of the spacing washers (302) are located between a plurality of the heat exchange plates (204), and the threads (304) at both ends of the four hanging rack rods (301) pass through the rack rod mounting holes (107) and protrude out of both sides of the shell (101).

7. A hybrid heat exchange device according to claim 6, characterized in that: The liquid inlet (202) and the liquid outlet (203) protrude from one side of the shell (101) through the tube disc protrusion hole (108).

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