A liquid full evaporator exhaust device

Abstract

This utility model discloses an exhaust device for a flooded evaporator, including an exhaust pipe body, an exhaust assembly, and a noise reduction assembly. The exhaust pipe body is detachably connected to the flooded evaporator by bolts. The exhaust assembly is arranged inside the exhaust pipe body. The exhaust assembly includes a fixed seat, a movable groove, a movable block, a spring, a contact circular plate, and a vent pipe. The fixed seat is fixed to the top wall of the exhaust pipe body. A movable groove is formed on the bottom surface of the fixed seat. The movable block slides through the movable groove. The two ends of the spring are fixedly connected to the inner wall of the movable groove and the movable block, respectively. The contact circular plate is fixedly connected to the end of the movable block. The vent pipe is fixed on the circumferential surface of the exhaust pipe body and communicates with the exhaust pipe body. The vent pipe is located above the contact circular plate, and a noise reduction assembly is installed inside the vent pipe. This exhaust device for a flooded evaporator has a simple and reasonable structure and ingenious design. It can achieve automatic exhaust through the pressure difference inside the flooded evaporator, has high safety, and good exhaust effect.

Description

Technical Field

[0001] This utility model relates to the field of flooded evaporator technology, specifically to an exhaust device for a flooded evaporator. Background Technology

[0002] A flooded evaporator is a heat exchange device in a refrigeration system. Its characteristic is that the evaporator is filled with liquid refrigerant, and the refrigerant is in full contact with the heat transfer surface to improve heat exchange efficiency. This device has a compact structure, high efficiency and energy saving, and is widely used in low temperature refrigeration systems, air conditioning systems and industrial refrigeration systems. Although its heat exchange performance is good, it also has disadvantages such as large refrigerant charge and difficulty in lubricating oil discharge (Freon system). It is especially suitable for ammonia refrigerant systems.

[0003] The microbubble venting device disclosed in Chinese Utility Model Patent Publication No. CN219646769U includes a valve body with an venting valve and a drain port at its upper and lower ends, respectively. By setting an upper and lower pressure sleeve between the outlet and the connecting pipe, a sealed connection can be achieved by changing the traditional connection method. The upper and lower sealing sleeves ensure a tight seal at the connection gap between the outlet and the connecting pipe. Furthermore, the upper and lower sealing sleeves are replaceable; if the seal deteriorates and water leaks out, they can be replaced immediately. Additionally, the first and second protrusions and bolts between the upper and lower pressure sleeves facilitate their connection. Waterproof fasteners prevent water from contacting the bolts and causing aging and damage. This device changes the traditional pipeline connection method, improving both the sealing performance and ease of replacement.

[0004] Currently, during the use of flooded evaporators, an exhaust device is needed to discharge the refrigerant gas that has evaporated inside the evaporator to ensure its normal operation and efficient heat transfer. However, the existing exhaust devices require manual operation of the control valve based on the internal pressure of the flooded evaporator to discharge the gas, which makes it difficult to achieve automatic exhaust. This not only increases the workload of the staff and reduces safety, but also reduces exhaust efficiency, thus affecting the effectiveness of the exhaust device. Utility Model Content

[0005] The purpose of this invention is to provide an exhaust device for a flooded evaporator to solve the problem of difficulty in achieving automatic exhaust as mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an exhaust device for a flooded evaporator, comprising an exhaust pipe body, an exhaust assembly, and a noise reduction assembly; the exhaust pipe body is detachably connected to the flooded evaporator via bolts; the exhaust assembly is arranged within the exhaust pipe body; the exhaust assembly includes a fixed seat, a movable groove, a movable block, a spring, a contact circular plate, and a vent pipe; the fixed seat is fixedly mounted on the top wall of the exhaust pipe body; a movable groove is formed on the bottom surface of the fixed seat; the movable block slides through the movable groove; both ends of the spring are fixedly connected to the inner wall of the movable groove and the movable block, respectively; the contact circular plate is fixedly connected to the end of the movable block; the vent pipe is fixedly mounted on the circumferential surface of the exhaust pipe body and communicates with the exhaust pipe body, the vent pipe is positioned above the contact circular plate, and a noise reduction assembly is provided inside the vent pipe.

[0007] Preferably, the movable block has a T-shaped structure that is larger at the top and smaller at the bottom.

[0008] Preferably, the exhaust assembly further includes a guide groove and a guide block; the guide groove is formed on the inner circumferential surface of the exhaust pipe body; the guide block is fixed on the circumferential surface of the contact plate and slides in cooperation with the guide groove.

[0009] Preferably, the guide block has a ring-shaped wave structure.

[0010] Preferably, the noise reduction component includes a fixing block, a noise reduction groove, and a return groove; a plurality of the fixing blocks are fixed in a ring array on the inner circumferential surface of the vent pipe; a plurality of noise reduction grooves are formed on the opposite surfaces of the plurality of fixing blocks; and a return groove is formed on the side of the fixing block away from the exhaust pipe body.

[0011] Preferably, the fixing block has a right-angled trapezoidal structure, and the inclined surface of the fixing block is positioned close to the exhaust pipe body.

[0012] Preferably, the noise reduction groove has a V-shaped inclined structure, and the tips of several noise reduction grooves are arranged opposite to each other.

[0013] Preferably, the reflux trough has an arc-shaped structure, and the arc-shaped end of the reflux trough is arranged inward.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, by setting up an exhaust assembly, allows the contact disc to slide upward within the exhaust pipe body as the internal pressure of the evaporator gradually increases. This causes the movable block to slide upward within the movable groove, compressing the spring and causing the guide block to slide upward within the guide groove. Because the guide block has a ring-shaped wave structure, it not only guides the sliding of the contact disc within the exhaust pipe body but also improves the airtightness between the contact disc and the exhaust pipe body by extending the contact area between the guide block and the guide groove, until a gap exists between the contact disc and the vent pipe. At this point, the refrigerant gas evaporated in the evaporator enters the vent pipe for discharge. Compared to existing technologies, this utility model has a simple and reasonable structure, ingenious design, and achieves automatic exhaust through the pressure difference within the evaporator, resulting in high safety and good exhaust performance.

[0016] 2. By setting up a noise reduction component, the refrigerant gas evaporated in the full-liquid evaporator will enter the vent pipe through the gap between the contact circular plate and the vent pipe. After being guided by the inclined surface of the fixed block, the refrigerant gas can enter the noise reduction tank. Since the noise reduction tank has a V-shaped inclined structure, it can extend the flow path of the refrigerant gas and reduce the flow rate of the refrigerant gas, thereby reducing the noise generated when the refrigerant gas flows. Furthermore, since the return tank has an arc-shaped structure, the refrigerant gas can return in the return tank, further reducing the noise generated when the refrigerant gas flows. Attached Figure Description

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

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a sectional view showing the overall structure of this utility model.

[0020] Figure 4 This is a cross-sectional view of the fixing block structure of this utility model.

[0021] In the picture:

[0022] 1. Exhaust pipe body; 2. Exhaust assembly; 3. Noise reduction assembly; 201. Fixing base; 202. Movable groove; 203. Movable block; 204. Spring; 205. Contact circular plate; 206. Vent pipe; 207. Guide groove; 208. Guide block; 301. Fixing block; 302. Noise reduction groove; 303. Return groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: an exhaust device for a flooded evaporator, comprising an exhaust pipe body 1, an exhaust assembly 2, and a noise reduction assembly 3; the exhaust pipe body 1 is detachably connected to the flooded evaporator by bolts; the exhaust assembly 2 is arranged inside the exhaust pipe body 1; the exhaust assembly 2 includes a fixed seat 201, a movable groove 202, a movable block 203, a spring 204, a contact circular plate 205, a vent pipe 206, a guide groove 207, and a guide block 208; the fixed seat 201 is fixed to the inner top wall of the exhaust pipe body 1; the fixed seat 201 has a movable groove 202 on its bottom surface; the movable block 203 slides through the movable groove 202; the two ends of the spring 204 are respectively connected to the inner wall of the movable groove 202. The movable block 203 is fixedly connected to the contact circular plate 205; the contact circular plate 205 is fixedly connected to the end of the movable block 203; the vent pipe 206 is fixedly mounted on the circumferential surface of the exhaust pipe body 1 and communicates with the exhaust pipe body 1, the vent pipe 206 is located above the contact circular plate 205, and a noise reduction component 3 is provided inside the vent pipe 206; the movable block 203 has a T-shaped structure with a larger upper part and a smaller lower part, so as to facilitate the restriction of the movement position of the movable block 203; a guide groove 207 is provided on the inner circumferential surface of the exhaust pipe body 1; the guide block 208 is fixedly mounted on the circumferential surface of the contact circular plate 205 and slides in cooperation with the guide groove 207; the guide block 208 has an annular wave-shaped structure; when the bottom surface of the contact circular plate 205 is higher than the vent pipe 206, the spring 204 can continue to contract.

[0025] This invention, by setting up an exhaust assembly 2, allows the contact disc 205 to slide upward within the exhaust pipe body 1 as the internal pressure of the evaporator gradually increases. This causes the movable block 203 to slide upward within the movable groove 202, and the spring 204 to contract under force, causing the guide block 208 to slide upward within the guide groove 207. Since the guide block 208 has a ring-shaped wave structure, it not only guides the sliding of the contact disc 205 within the exhaust pipe body 1 but also improves the airtightness between the contact disc 205 and the exhaust pipe body 1 by extending the contact area between the guide block 208 and the guide groove 207, until a gap exists between the contact disc 205 and the vent pipe 206. At this point, the refrigerant gas evaporated in the evaporator enters the vent pipe 206 for discharge. Compared to existing technologies, this invention has a simple and reasonable structure, ingenious design, and achieves automatic exhaust through the pressure difference within the evaporator, resulting in high safety and good exhaust performance.

[0026] As a preferred embodiment, the noise reduction component 3 includes a fixing block 301, a noise reduction groove 302, and a return groove 303; the three fixing blocks 301 are fixed in a ring array on the inner circumferential surface of the vent pipe 206; three noise reduction grooves 302 are formed on the opposite surfaces of the three fixing blocks 301; a return groove 303 is formed on the side of the fixing block 301 away from the exhaust pipe body 1; the fixing block 301 has a right-angled trapezoidal structure, and the inclined surface of the fixing block 301 is set close to the exhaust pipe body 1; the noise reduction groove 302 has a V-shaped inclined structure, and the tips of the three noise reduction grooves 302 are set opposite to each other; the return groove 303 has an arc-shaped structure, and the arc-shaped end of the return groove 303 is set inward.

[0027] By incorporating a noise reduction component 3, the refrigerant gas evaporated in the full-liquid evaporator enters the vent pipe 206 through the gap between the contact circular plate 205 and the vent pipe 206. Guided by the inclined surface of the fixing block 301, the refrigerant gas enters the noise reduction groove 302. Since the noise reduction groove 302 has a V-shaped inclined structure, it can extend the flow path of the refrigerant gas and reduce the flow rate of the refrigerant gas, thereby reducing the noise generated when the refrigerant gas flows. Furthermore, since the return groove 303 has an arc-shaped structure, the refrigerant gas can return in the return groove 303, further reducing the noise generated when the refrigerant gas flows.

[0028] Working principle: As the internal pressure of the evaporator gradually increases, the pressure pushes the contact plate 205, causing it to slide upward within the exhaust pipe body 1. This causes the movable block 203 to slide upward within the movable groove 202, resulting in the spring 204 contracting and the guide block 208 sliding upward within the guide groove 207. Because the guide block 208 has a ring-shaped wave structure, it not only guides the sliding of the contact plate 205 within the exhaust pipe body 1 but also improves the airtightness between the contact plate 205 and the exhaust pipe body 1 by extending the contact area between the guide block 208 and the guide groove 207, until the contact plate 205... There is a gap between the refrigerant gas and the vent pipe 206. At this time, the refrigerant gas evaporated in the full liquid evaporator will enter the vent pipe 206. After being guided by the inclined surface of the fixed block 301, the refrigerant gas can enter the noise reduction tank 302. Since the noise reduction tank 302 has a V-shaped inclined structure, it can extend the flow path of the refrigerant gas and reduce the flow rate of the refrigerant gas, thereby reducing the noise generated when the refrigerant gas flows. Furthermore, since the return tank 303 has an arc-shaped structure, the refrigerant gas can return in the return tank 303, further reducing the noise generated when the refrigerant gas flows, and finally being discharged through the vent pipe 206.

[0029] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exhaust device for a flooded evaporator, characterized in that, The system includes an exhaust pipe body (1) for a flooded evaporator, an exhaust assembly (2), and a noise reduction assembly (3); the exhaust pipe body (1) is detachably connected to the flooded evaporator by bolts; the exhaust assembly (2) is arranged inside the exhaust pipe body (1); the exhaust assembly (2) includes a fixed seat (201), a movable groove (202), a movable block (203), a spring (204), a contact circular plate (205), and a vent pipe (206); the fixed seat (201) is fixed to the inner top wall of the exhaust pipe body (1); the bottom surface of the fixed seat (201) An active groove (202) is provided; the active block (203) slides through the active groove (202); the two ends of the spring (204) are fixedly connected to the inner wall of the active groove (202) and the active block (203) respectively; the contact circular plate (205) is fixedly connected to the end of the active block (203); the vent pipe (206) is fixedly installed on the circumferential surface of the exhaust pipe body (1) and communicates with the exhaust pipe body (1), the vent pipe (206) is located above the contact circular plate (205), and a noise reduction component (3) is provided inside the vent pipe (206).

2. The exhaust device for a flooded evaporator according to claim 1, characterized in that, The active block (203) has a T-shaped structure that is larger at the top and smaller at the bottom.

3. The exhaust device for a flooded evaporator according to claim 1, characterized in that, The exhaust assembly (2) further includes a guide groove (207) and a guide block (208); the guide groove (207) is provided on the inner circumferential surface of the exhaust pipe body (1); the guide block (208) is fixed on the circumferential surface of the contact circular plate (205) and slides in cooperation with the guide groove (207).

4. The exhaust device for a flooded evaporator according to claim 3, characterized in that, The guide block (208) has a ring-shaped wave structure.

5. The exhaust device for a flooded evaporator according to claim 1, characterized in that, The noise reduction component (3) includes a fixing block (301), a noise reduction groove (302), and a return groove (303); a plurality of fixing blocks (301) are fixed in a ring array on the inner circumferential surface of the vent pipe (206); a plurality of noise reduction grooves (302) are provided on the opposite surfaces of the plurality of fixing blocks (301); a return groove (303) is provided on the side of the fixing block (301) away from the exhaust pipe body (1).

6. The exhaust device for a flooded evaporator according to claim 5, characterized in that, The fixing block (301) has a right-angled trapezoidal structure, and the inclined surface of the fixing block (301) is set close to the exhaust pipe body (1).

7. The exhaust device for a flooded evaporator according to claim 5, characterized in that, The noise reduction groove (302) has a V-shaped inclined structure, and the tips of several noise reduction grooves (302) are arranged opposite to each other.

8. The exhaust device for a flooded evaporator according to claim 5, characterized in that, The return channel (303) has an arc-shaped structure, and the arc-shaped end of the return channel (303) is set inward.

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