Low-heat-loss plate heat exchanger

Abstract

The utility model provides a plate heat exchanger with low heat loss, which relates to the field of plate heat exchangers and comprises a front side plate, an upper support rod and a lower support rod are fixedly mounted on the upper side and the lower side of the rear end face of the front side plate, and support columns are fixedly connected to the rear ends of the upper support rod and the lower support rod; the rear end face of the front side plate is fixedly connected with a guide rod, and the exterior of the guide rod is slidably connected with a rear side plate. The front end face of the front side plate is fixedly connected with a six-edge cylinder. An anti-loosening piece is arranged on the rear end face of the rear side plate. Through the cooperation of the six-edge cylinder, the locking gear and the anti-loosening piece, the nut can be locked through the engagement of the locking tooth block and the locking gear, and meanwhile, the six-edge cylinder limits the hexagonal rotating block, so that the sealing performance of a plate sheet is ensured, and the leakage of a medium is completely eradicated; the problems that an existing plate heat exchanger is affected by temperature alternation, fluid impact and pressure fluctuation, a clamping screw and a nut are prone to loosening, the sealing pressing force of a plate sheet is reduced, and medium leakage is caused are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate heat exchanger technical field especially relates to a low heat loss plate heat exchanger. BACKGROUND

[0002] Plate heat exchanger is a kind of high-efficiency, compact heat exchange equipment, is widely used in chemical industry, petroleum, electric power, food, pharmaceutical and heating ventilation air conditioning etc. Its core structure is formed by a series of corrugated sheet stacking, fluid passage is formed between sheet, cold and hot medium passes through sheet and carries out heat exchange. Compared with traditional shell-and-tube heat exchanger, plate heat exchanger has the advantages of high heat transfer efficiency, compact structure, easy to disassemble and clean etc.

[0003] However, existing plate heat exchanger is affected by temperature alternation, fluid impact vibration and pressure fluctuation etc. dynamic load in long-term operation process, its clamping screw and nut are prone to loosening, once clamping screw and nut loosen, it will reduce the sealing compression force between sheet, lead to the problem of medium leakage, seriously, it can also cause sealing failure even equipment structural damage, eventually it will affect the safety and service life of plate heat exchanger. SUMMARY

[0004] The disclosed embodiment relates to a kind of low heat loss plate heat exchanger, it is cooperated by six prism cylinder, locking gear and anti-loosening piece, when square limiting rod is clamped into the limiting recess of rear side of limiting plate, two locking teeth block is with locking gear and forms stable meshing relationship, to realize the limiting of nut, and six prism cylinder can effectively limit hexagonal rotating block, therefore effectively avoid the loosening phenomenon of clamping screw and nut, improve the sealing compression force between sheet, avoid the problem of medium leakage.

[0005] The first aspect of the present disclosure provides a kind of low heat loss plate heat exchanger, specifically comprising: front side plate, the upper support rod and lower support rod are fixedly installed on the upper and lower sides of the rear end surface of the front side plate, and the rear end of the upper support rod and lower support rod is fixedly connected with support column;The rear end surface of the front side plate is fixedly connected with guide rod, and the guide rod is slidably connected with rear side plate outside, and plate is slidably connected between the guide rod, and plate is located between front side plate and rear side plate;The front end surface of the front side plate is fixedly connected with six prism cylinder;Clamping screw is movably inserted in the front side plate and rear side plate, each clamping screw is connected with a nut by screw thread outside, and each nut is fixedly connected with a locking gear, and the front end of each clamping screw is fixedly connected with a hexagonal rotating block;Heat insulation sleeve is provided outside the plate;Anti-loosening piece is arranged on the rear end surface of the rear side plate, and anti-loosening piece is located near locking gear.

[0006] In at least some embodiments, when the plate is clamped between the front plate and the rear plate, the front end surface of the locking gear is in close contact with the rear end surface of the rear plate, and the hexagonal rotating block is located inside the hexagonal cylinder.

[0007] In at least some embodiments, two U-shaped sliding openings are formed on the upper and lower sides of the plate, and the U-shaped sliding openings are slidingly connected with the guide rods.

[0008] In at least some embodiments, the anti-loosening member comprises a box body, the box body is fixedly connected to the rear end surface of the rear plate, a sliding block is slidingly connected inside the box body, two locking teeth are fixedly connected to the head end surface of the sliding block, a hexagonal prism is fixedly connected to the rear end surface of the sliding block, a hexagonal plate is fixedly connected to the rear end of the hexagonal prism, a sliding plate is slidingly connected outside the hexagonal prism, a spring is sleeved between the hexagonal plate and the sliding plate outside the hexagonal prism, a square limiting rod is fixedly connected to the lower end surface of the sliding plate, and a limiting groove is formed in the rear side of a limiting plate fixedly connected to the bottom end surface of the box body.

[0009] In at least some embodiments, when the anti-loosening member is in the anti-loosening state, the two locking teeth are engaged with the locking gear, and at this time, the square limiting rod is clamped in the limiting groove formed in the rear side of the limiting plate.

[0010] The low-heat-loss plate heat exchanger has the following beneficial effects:

[0011] 1. When the square limiting rod is clamped into the limiting groove in the rear side of the limiting plate, the two locking teeth are in stable engagement with the locking gear, thereby limiting the nut, and the hexagonal rotating block is effectively limited by the hexagonal cylinder, so that the loosening of the clamping screw and the nut is effectively avoided, the sealing and pressing force between the plates is improved, the problem of medium leakage is avoided, and the operation safety and service life of the plate heat exchanger are significantly improved.

[0012] 2. The heat insulation sleeve is sleeved outside the plate, the heat insulation sleeve is made of polyurethane foam material, the excellent heat insulation performance of the polyurethane foam can significantly inhibit the heat exchange between the plate and the external environment, and the lightweight characteristic of the polyurethane foam itself does not increase the additional structural load, in actual application, the heat insulation sleeve can reduce heat loss by 15-20%, greatly improve the overall energy efficiency of the plate heat exchanger, and effectively prolong the service life of the equipment by maintaining stable working temperature. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below.

[0014] The drawings in the following description are merely some embodiments of the present application, and are not a limitation of the present application.

[0015] In the drawings:

[0016] Figure 1 A structural schematic diagram showing the overall structure of the present application is shown.

[0017] Figure 2 A structural schematic diagram showing the rear perspective view of the present application is shown.

[0018] Figure 3 A structural schematic diagram showing the present application in a split state is shown.

[0019] Figure 4 A structural schematic diagram showing the locking gear and the anti-loosening member of the present application is shown.

[0020] Figure 5 A structural schematic diagram showing the anti-loosening member of the present application in a split state is shown.

[0021] List of reference signs

[0022] 1, front side plate; 101, upper support rod; 102, lower support rod; 103, guide rod; 104, hexagonal cylinder;

[0023] 2, support column;

[0024] 3, rear side plate;

[0025] 4, heat insulation sleeve;

[0026] 5, clamping screw; 501, nut; 502, locking gear; 503, hexagonal rotating block;

[0027] 6, anti-loosening member; 601, box body; 602, sliding block; 603, hexagonal prism; 604, sliding plate; 605, square limiting rod; 606, limiting plate; 607, locking tooth block;

[0028] 7, plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Embodiment one: please refer to Figures 1 to 5 :

[0031] The utility model provides a kind of low heat loss plate heat exchanger, comprising: front side plate 1, upper support rod 101 and lower support rod 102 are fixedly installed on the upper and lower sides of the rear end surface of front side plate 1, and the rear end of upper support rod 101 and lower support rod 102 is fixedly connected with support column 2;The rear end surface of front side plate 1 is fixedly connected with guide rod 103, and the outside of guide rod 103 is slidably connected with rear side plate 3, and plate piece 7 is slidably connected between guide rod 103, and plate piece 7 is located between front side plate 1 and rear side plate 3;The front end surface of front side plate 1 is fixedly connected with six prism cylinder 104;Front side plate 1 and rear side plate 3 are movably inserted with clamping screw 5, one nut 501 is connected by screw thread outside each clamping screw 5, and one locking gear 502 is fixedly connected on each nut 501, and the front end of each clamping screw 5 is fixedly connected with a hexagonal rotating block 503;Heat preservation heat insulation sleeve 4 is provided outside plate piece 7, heat preservation heat insulation sleeve 4 is made of polyurethane foam material, and the excellent heat insulation performance of polyurethane foam can significantly inhibit the heat exchange between plate piece 7 and external environment, in practical application, heat preservation heat insulation sleeve 4 can reduce 15-20% heat loss, and the overall energy efficiency of the plate heat exchanger is greatly improved.

[0032] The rear end surface of rear side plate 3 is provided with anti-loosening part 6, and anti-loosening part 6 is located near locking gear 502, and locking gear 502 and anti-loosening part 6 can be locked and limited to nut 501.

[0033] When plate piece 7 is in clamping state between front side plate 1 and rear side plate 3, the front end surface of locking gear 502 is in close contact with the rear end surface of rear side plate 3, and hexagonal rotating block 503 is located inside six prism cylinder 104, which can limit hexagonal rotating block 503 through six prism cylinder 104.

[0034] Two U-shaped sliding openings are formed on the upper and lower sides of plate piece 7, and the U-shaped sliding openings are slidably connected with guide rod 103, so that plate piece 7 can be effectively supported and guided during installation.

[0035] In the embodiment one, based on Figure 4 And Figure 5As shown, the anti-loosening piece 6 comprises a box body 601 fixedly connected to the rear end face of the rear side plate 3, and a sliding block 602 slidably connected inside the box body 601, the head end face of the sliding block 602 is fixedly connected with two locking teeth blocks 607, and the rear end face of the sliding block 602 is fixedly connected with a hexagonal prism 603, the rear end of the hexagonal prism 603 is fixedly connected with a hexagonal plate, the hexagonal prism 603 is slidably connected with a sliding plate 604 outside, a spring is sleeved between the hexagonal plate and the sliding plate 604 outside the hexagonal prism 603, the lower end face of the sliding plate 604 is fixedly connected with a square limiting rod 605, the bottom end face of the box body 601 is fixedly connected with a limiting plate 606, and a limiting groove is formed in the rear side of the limiting plate 606; when the anti-loosening piece 6 is in the anti-loosening state, the two locking teeth blocks 607 are engaged with the locking gear 502, and at this time the square limiting rod 605 is clamped in the limiting groove formed in the rear side of the limiting plate 606, and cooperates with the spring sleeved outside the hexagonal prism 603 to make the square limiting rod 605 more stable inside the limiting groove, thereby improving the reliability of the locking teeth blocks 607 when locking and limiting the locking gear 502.

[0036] The working principle of the embodiment is as follows: during installation, first, the upper support rod 101 and the lower support rod 102 are fixedly installed on the upper and lower sides of the rear end face of the front side plate 1, then the guide rod 103 is fixedly connected to the rear end face of the front side plate 1, then the rear side plate 3 is slidably penetrated outside the upper support rod 101, the lower support rod 102 and the guide rod 103, then the support column 2 is fixedly connected to the rear ends of the upper support rod 101 and the lower support rod 102, then the plate piece 7 is slidably connected between the guide rods 103, then the heat preservation sleeve 4 is sleeved outside the plate piece 7, then the clamping screw 5 is sequentially penetrated from front to back through the front side plate 1 and the rear side plate 3, so that the hexagonal rotating block 503 is located inside the hexagonal cylinder 104, then the nut 501 is screwed to the outside of the clamping screw 5, the plate piece 7 is clamped between the front side plate 1 and the rear side plate 3 by tightening the nut 501, and finally the square limiting rod 605 is clamped in the limiting groove formed in the rear side of the limiting plate 606, and at this time the two locking teeth blocks 607 are engaged with the locking gear 502, thereby achieving the limiting of the nut 501, and since the hexagonal rotating block 503 is located inside the hexagonal cylinder 104, the hexagonal rotating block 503 can also be effectively limited, thereby effectively avoiding the loosening of the clamping screw 5 and the nut 501, improving the sealing and pressing force between the plate pieces 7, and avoiding the problem of medium leakage.

[0037] In use, the cold and hot medium enters the fluid channel between the plate pieces 7 through the two liquid inlet openings on the front side of the front side plate 1, exchanges heat with the plate pieces 7, and then is discharged through the two liquid outlet openings on the front side of the front side plate 1; and in the heat exchange process, the heat insulation sleeve 4 is sleeved outside the plate pieces 7, the heat insulation sleeve 4 is made of polyurethane foam material, so that the heat on the plate pieces 7 is prevented from being transmitted outward under the heat preservation effect of the polyurethane foam, thereby effectively reducing heat loss.

[0038] In this document, the following points need to be noted:

[0039] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0040] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0041] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A low heat loss plate heat exchanger, comprising: The front side plate (1) is fixedly connected with the guide rod (103) on the rear end surface, and the guide rod (103) is slidably connected with the rear side plate (3) outside, and the plate piece (7) is slidably connected between the guide rods (103) and located between the front side plate (1) and the rear side plate (3); the front end surface of the front side plate (1) is fixedly connected with the six-rib cylinder (104); the clamping screw (5) is movably inserted into the front side plate (1) and the rear side plate (3), and each clamping screw (5) is externally threadedly connected with a nut (501), and each nut (501) is fixedly connected with a locking gear (502), and the front end of each clamping screw (5) is fixedly connected with a hexagonal rotating block (503); the plate piece (7) is externally sleeved with the heat preservation and heat insulation sleeve (4); the rear end surface of the rear side plate (3) is provided with the anti-loosening piece (6), and the anti-loosening piece (6) is located near the locking gear (502).

2. A low heat loss plate heat exchanger according to claim 1, characterized in that When the plate piece (7) is in a clamped state between the front side plate (1) and the rear side plate (3), the front end surface of the locking gear (502) is in close contact with the rear end surface of the rear side plate (3), and the hexagonal rotating block (503) is located inside the six-rib cylinder (104).

3. A low heat loss plate heat exchanger according to claim 1, characterized in that Two U-shaped sliding openings are formed on the upper and lower sides of the plate piece (7) and are slidably connected with the guide rods (103).

4. A low heat loss plate heat exchanger according to claim 1, characterized in that The anti-loosening piece (6) comprises a box body (601) fixedly connected to the rear end surface of the rear side plate (3), a sliding block (602) slidably connected inside the box body (601), two locking teeth blocks (607) fixedly connected to the head end surface of the sliding block (602), a hexagonal prism (603) fixedly connected to the rear end surface of the sliding block (602), a hexagonal plate fixedly connected to the rear end of the hexagonal prism (603), a sliding plate (604) slidably connected outside the hexagonal prism (603), a spring sleeved between the hexagonal plate and the sliding plate (604) outside the hexagonal prism (603), a square limiting rod (605) fixedly connected to the lower end surface of the sliding plate (604), and a limiting plate (606) fixedly connected to the bottom end surface of the box body (601), and a limiting groove is formed in the rear side of the limiting plate (606).

5. A low heat loss plate heat exchanger according to claim 4, characterized in that When the anti-loosening piece (6) is in a loosening prevention state, the two locking teeth blocks (607) are engaged with the locking gear (502), and at this time, the square limiting rod (605) is clamped in the limiting groove formed in the rear side of the limiting plate (606).

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