Plate heat exchanger for heating and ventilation

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly discloses a plate heat exchanger for heating and ventilation, which comprises a first mounting plate, a second mounting plate, an anti-dropping structure and a screw rod, a plurality of heat exchange sheets are arranged between the first mounting plate and the second mounting plate, and a plurality of mounting grooves are formed in the side edges of the first mounting plate and the second mounting plate. The screws penetrate through the mounting grooves in the first mounting plate and the second mounting plate and are in threaded connection with nuts, the heat exchange pieces are limited by arranging the screws, and the screws are locked on the first mounting plate and the second mounting plate through the nuts, so that the nuts are conveniently screwed off to be disassembled in the later period; the multiple anti-disengaging structures are arranged on the side edge of the first mounting plate and the side edge of the second mounting plate, each anti-disengaging structure comprises a movable groove, a fixed plate, a positioning rod, a spring, a movable plate and a blocking piece, the blocking pieces are inserted into the mounting grooves to limit the screw rods, the screw rods are limited in the mounting grooves through the blocking pieces, and the screw rods are limited in the mounting grooves; and the screw rod is prevented from falling off from the mounting groove.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a universal plate heat exchanger for heating. Background Art

[0002] A plate heat exchanger is a highly efficient heat exchanger composed of a series of corrugated metal sheets stacked together. Thin rectangular channels are formed between the plates, through which heat is exchanged. Plate heat exchangers are ideal for liquid-to-liquid and liquid-to-vapor heat exchange.

[0003] Most existing HVAC heat exchangers use screws and nuts to fasten the heat exchanger plates, but this fixing method is not convenient for later disassembly. Therefore, some people install a roller washer combination between the bolts and nuts to facilitate direct disassembly. For example, the Chinese utility model patent with announcement number CN217737978U specifically discloses a plate heat exchanger for a data center HVAC system.

[0004] However, during the actual use of the above-mentioned universal plate heat exchanger, people will find that the roller pad combination used in the equipment is mainly facilitated by the sliding of rollers, and a crowbar is required for dismantling. Due to the use of rollers, when the heat exchanger is working normally, it is easy for the screw to loosen due to external factors such as vibration, resulting in poor fixing effect, and using a crowbar to remove the screw is also likely to cause damage to the parts of the heat exchanger, and its practicality is low. Utility Model Content

[0005] The purpose of the present invention is to provide a universal plate heat exchanger for heating to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a universal plate heat exchanger for heating, comprising a first mounting plate, a second mounting plate, an anti-slip structure and a screw, a plurality of heat exchange fins are arranged between the first mounting plate and the second mounting plate, a plurality of mounting grooves are opened on the sides of the first mounting plate and the second mounting plate, the screw passes through the mounting grooves on the first mounting plate and the second mounting plate and is threadedly connected with a nut, the heat exchange fin is restricted by setting the screw, and the screw is locked on the first mounting plate and the second mounting plate by the nut, so as to facilitate the later unscrewing of the nut and removal of the screw.

[0007] There are multiple anti-slip structures, and anti-slip structures are provided on the sides of the first mounting plate and the second mounting plate. The anti-slip structures include a movable groove, a fixed plate, a positioning rod, a spring, a movable plate and a baffle. The movable groove is opened on the side walls of the first mounting plate and the second mounting plate, and the fixed plate is fixed in the middle of the movable groove. The positioning rod, the spring and the movable plate are arranged on both sides of the fixed plate. The positioning rod passes through the movable plate, and the two ends of the positioning rod are respectively fixed to the fixed plate and the inner wall of the movable groove. The spring is sleeved on the positioning rod, and the two ends of the spring are respectively fixed to the fixed plate and the movable plate. The baffle is fixed to the movable plate, and the baffle is inserted in the mounting groove to limit the screw. The screw is restricted in the mounting groove by the baffle, and the screw is restricted in the mounting groove to prevent the screw from falling off from the mounting groove.

[0008] Preferably, a shift block is provided on the movable plate, and an anti-slip groove is provided on the shift block. The shift block is mainly provided to facilitate the movable plate to be shifted backward.

[0009] Preferably, a rubber pad is provided on the baffle, and the rubber pad is mainly provided to avoid hard contact between the baffle and the screw.

[0010] Preferably, the movable plate is fitted with the inner wall of the movable groove, and a sliding connection is adopted between the movable plate and the movable groove, thereby improving the smoothness of the movable plate moving backward.

[0011] Preferably, the fixed plate, positioning rod, movable plate, baffle and spring are all made of stainless steel to improve the anti-corrosion effect.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention sets a screw limiting heat exchange plate, and sets a baffle on the anti-slip structure to limit the screw in the mounting groove on the first mounting plate and the second mounting plate, which can effectively prevent the screw from detaching from the mounting groove, thereby improving its fixing effect, and the screw can be directly removed by pulling the baffle out of the mounting groove and then loosening the nut. The operation is simple and easy to understand, which effectively improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the structure of the demolition screw of the utility model;

[0016] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0017] In the figure: 1. First mounting plate; 2. Second mounting plate; 3. Heat exchange plate; 4. Anti-slip structure; 401. Movable groove; 402. Fixed plate; 403. Positioning rod; 404. Spring; 405. Movable plate; 4051. Dial block; 406. Block; 5. Screw; 6. Nut; 7. Mounting groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0020] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] See also Figure 1-4 The utility model provides a technical solution: a warm universal plate heat exchanger, comprising a first mounting plate 1, a second mounting plate 2, an anti-slip structure 4 and a screw 5, a plurality of heat exchange fins 3 are arranged between the first mounting plate 1 and the second mounting plate 2, a plurality of mounting grooves 7 are opened on the sides of the first mounting plate 1 and the second mounting plate 2, the screw 5 passes through the mounting grooves 7 on the first mounting plate 1 and the second mounting plate 2 and is threadedly connected with a nut 6, the heat exchange fin 3 is restricted by setting the screw 5, and the screw 5 is locked on the first mounting plate 1 and the second mounting plate 2 by the nut 6, so that the nut 6 can be unscrewed and removed from the screw 5 later.

[0022] Furthermore, a plurality of anti-slip structures 4 are provided, and the sides of the first mounting plate 1 and the second mounting plate 2 are both provided with anti-slip structures 4, and the anti-slip structures 4 include a movable groove 401, a fixed plate 402, a positioning rod 403, a spring 404, a movable plate 405 and a baffle 406. The movable groove 401 is opened on the side walls of the first mounting plate 1 and the second mounting plate 2, the fixed plate 402 is fixed in the middle of the movable groove 401, and the positioning rod 403, the spring 404 and the movable plate 405 are provided on both sides of the fixed plate 402. The positioning rod 403 passes through the movable plate 405, and the two ends of the positioning rod 403 are respectively fixed to the fixed plate 402 and the inner wall of the movable groove 401, the spring 404 is sleeved on the positioning rod 403, and the two ends of the spring 404 are respectively fixed to the fixed plate 402 and the movable plate 405, the baffle 406 is fixed on the movable plate 405, and the baffle 406 is inserted in the mounting groove 7 to limit the screw 5, and the screw 5 is restricted in the mounting groove 7 by the baffle 406, and the screw 5 is restricted in the mounting groove 7 to prevent the screw 5 from falling off from the mounting groove 7.

[0023] Furthermore, a shift block 4051 is provided on the movable plate 405 , and an anti-slip groove is provided on the shift block 4051 . The shift block 4051 is mainly provided to facilitate the backward shifting of the movable plate 405 .

[0024] Furthermore, a rubber pad is provided on the blocking piece 406 , and the rubber pad is mainly provided to prevent hard contact between the blocking piece 406 and the screw 5 .

[0025] Furthermore, the movable plate 405 is fitted with the inner wall of the movable groove 401 , and a sliding connection is adopted between the movable plate 405 and the movable groove 401 , thereby improving the smoothness of the movable plate 405 moving backward.

[0026] Furthermore, the fixed plate 402, the positioning rod 403, the movable plate 405, the baffle and the spring 404 are all made of stainless steel to improve the anti-corrosion effect.

[0027] In summary, when the device is in use, the screw 5 is provided to restrain the heat exchange plate 3, and the stopper 406 on the anti-slip structure 4 is provided to restrain the screw 5 in the mounting groove 7 on the first mounting plate 1 and the second mounting plate 2, thereby effectively preventing the screw 5 from being disengaged from the mounting groove 7. When the screw 5 needs to be removed, it is only necessary to loosen the nut 6 and then move the movable plate 405 toward the fixed plate 402, so that the movable plate 405 compresses the spring 404, causing the spring 404 to deform and contract. At the same time, the movable plate 405 drives the insert to disengage from the mounting groove 7, and then the screw 5 can be removed from the mounting groove 7. During installation, pull the insert out of the mounting groove 7 again, then insert the screw 5 into the mounting groove 7 on the first mounting plate 1 and the second mounting plate 2, then loosen the movable plate 405. Since the spring 404 has no pressure to rebound, the spring 404 pushes the movable plate 405 back, so that the movable plate 405 drives the insert back into the mounting groove 7 to restrict the screw 5, then screw the nut 6 onto the screw 5, and lock the first mounting plate 1 and the second mounting plate 2.

[0028] It is worth noting that the entire device is controlled by a master control button. Since the devices matched with the control button are commonly used devices and belong to existing mature technologies, their electrical connection relationships and specific circuit structures will not be described in detail here.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal plate heat exchanger for heating, characterized by: The invention comprises a first mounting plate (1), a second mounting plate (2), an anti-slip structure (4) and a screw (5); a plurality of heat exchange fins (3) are arranged between the first mounting plate (1) and the second mounting plate (2); a plurality of mounting grooves (7) are provided on the sides of the first mounting plate (1) and the second mounting plate (2); the screw (5) passes through the mounting grooves (7) on the first mounting plate (1) and the second mounting plate (2) and is threadedly connected with a nut (6); The anti-slipping structure (4) is provided with a plurality of anti-slipping structures (4), and the sides of the first mounting plate (1) and the second mounting plate (2) are both provided with the anti-slipping structure (4), the anti-slipping structure (4) comprises a movable groove (401), a fixed plate (402), a positioning rod (403), a spring (404), a movable plate (405) and a baffle (406), the movable groove (401) is provided on the side walls of the first mounting plate (1) and the second mounting plate (2), the fixed plate (402) is fixed at a position in the middle of the movable groove (401), the positioning rod (403), the spring (404), the movable plate (405) and the baffle (406), 4) and a movable plate (405) are arranged on both sides of the fixed plate (402), the positioning rod (403) passes through the movable plate (405), and the two ends of the positioning rod (403) are respectively fixed to the fixed plate (402) and the inner wall of the movable groove (401), the spring (404) is sleeved on the positioning rod (403), and the two ends of the spring (404) are respectively fixed to the fixed plate (402) and the movable plate (405), the blocking piece (406) is fixed on the movable plate (405), and the blocking piece (406) is inserted into the installation groove (7) to limit the screw rod (5).

2. The heating plate heat exchanger according to claim 1, characterized in that: The movable plate (405) is provided with a shifting block (4051), and the shifting block (4051) is provided with an anti-slip groove.

3. The heating plate heat exchanger according to claim 1, characterized in that: The blocking piece (406) is sleeved with a rubber pad.

4. The heating-general-purpose plate heat exchanger according to claim 1, characterized in that: The movable plate (405) is fitted with the inner wall of the movable groove (401), and a sliding connection is adopted between the movable plate (405) and the movable groove (401).

5. The heating-general-purpose plate heat exchanger according to claim 1, characterized in that: The fixed plate (402), the positioning rod (403), the movable plate (405), the baffle and the spring (404) are all made of stainless steel.

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