Automatic throttling device of lithium bromide refrigerator

Abstract

The utility model relates to the technical field of refrigerating machine throttling devices, in particular to an automatic throttling device of a lithium bromide refrigerating machine, which is characterized in that a water inlet pipe is fixedly communicated with the upper part of a barrel body, a water outlet pipe is fixedly communicated with the bottom of the barrel body, and a throttling pipe coaxially corresponding to the water outlet pipe is detachably connected with the inner bottom surface of the barrel body. A plurality of throttling holes evenly distributed around the axis of the throttling pipe are formed in the bottom of the throttling pipe, a guide sleeve is integrally and coaxially arranged at the upper end of the throttling pipe, an adjusting rod is coaxially and slidably connected into the guide sleeve, a floating ball is coaxially and fixedly connected to the upper end of the adjusting rod, and a chuck is coaxially and fixedly connected to the bottom of the adjusting rod. The chuck is coaxially and fixedly connected with a sealing ring used for blocking the throttling hole, the end, opposite to the throttling pipe, of the chuck is coaxially and fixedly connected with an elastic piece, and a balance groove located above the throttling hole is formed in the outer edge of the throttling pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of throttling devices of refrigerators, in particular to an automatic throttling device for a lithium bromide refrigerator. Background Technique

[0002] The lithium bromide refrigerator realizes refrigeration by using the absorption and release of water vapor by lithium bromide aqueous solution at different temperatures. This cycle needs to use an external heat source to achieve refrigeration, and the common heat sources are steam, hot water, gas, fuel oil, etc. The lithium bromide absorption refrigerator has many unique advantages and has developed very rapidly in recent years, occupying a significant position in air-conditioning refrigeration.

[0003] In a lithium bromide refrigerator, the refrigerant vapor from the high-pressure generator condenses into refrigerant water after releasing heat in the low-pressure generator tube. A throttling device is usually arranged at the pipe where this refrigerant water enters the condenser to form a liquid seal at the throttling device, thereby generating a partition to prevent the high and low pressures from communicating with each other. The commonly used throttling device is generally a throttle valve. However, in the actual application process, due to the pressure difference on both sides, the self-balancing of the throttle valve is greatly affected, thereby affecting the use effect of the throttle valve and the refrigeration effect. For this reason, the present application specifically proposes an automatic throttling device for a lithium bromide refrigerator. Content of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an automatic throttling device for a lithium bromide refrigerator. The technical solution to solve the problem is as follows: It includes a cylinder body. It is characterized in that a water inlet pipe is fixedly communicated with the upper part of the cylinder body, a water outlet pipe is fixedly communicated with the bottom of the cylinder body, a throttling pipe corresponding to the water outlet pipe coaxially is detachably connected to the inner bottom surface of the cylinder body. A plurality of throttling holes evenly distributed around its axis are opened at the bottom of the throttling pipe. A guide sleeve is integrally and coaxially arranged at the upper end of the throttling pipe. An adjusting rod is coaxially slidably connected in the guide sleeve. A floating ball is coaxially fixedly connected to the upper end of the adjusting rod. A chuck is coaxially fixedly connected to the bottom of the adjusting rod. A sealing ring for blocking the throttling holes is coaxially fixedly connected to the chuck. An elastic member is coaxially fixedly connected to the opposite end of the chuck and the throttling pipe. A balance groove is opened on the outer edge of the throttling pipe above the throttling holes.

[0005] Preferably, the elastic member is a tension spring.

[0006] Preferably, a flange is integrally and coaxially arranged at the bottom of the throttling pipe, and the flange is connected to the inner bottom surface of the cylinder body by bolts.

[0007] Preferably, a guide key is fixedly connected to the inner wall of the guide sleeve, and a guide groove for sliding connection with the guide key is opened on the outer edge of the adjusting rod.

[0008] The beneficial effects of the utility model are as follows:

[0009] When this application is in use, as the refrigerant water enters the cylinder body, the liquid level of the refrigerant water in the cylinder body will gradually rise to form a liquid seal. However, to prevent the cylinder body from being filled with refrigerant water and affecting the operation of the lithium bromide refrigerator, it is necessary to control the liquid level of the liquid seal. Therefore, this application is provided with a floating ball. When the liquid level rises to a certain position, as the refrigerant water continues to flow in, the floating ball will float upward as the liquid level of the refrigerant water rises. The upward floating of the floating ball will drive the adjusting rod to move upward along the guide sleeve. Furthermore, the chuck at the lower end of the adjusting rod together with the sealing plug will move upward along the inner wall of the throttle pipe. As a result, the sealing plug will disengage from the blockage of the throttle hole, and the refrigerant water in the cylinder body will be discharged through the throttle hole and the water outlet pipe. As the refrigerant water is discharged, the liquid level will drop. As the liquid level drops, the floating ball and the sealing plug will also move downward to reset and block the throttle hole again until the refrigerant water in the cylinder body rises again and the above process will automatically cycle. Thus, the liquid level in the cylinder body is controlled at a certain level to achieve the throttling effect. The structure of this application is simple, easy to use, and highly practical. Description of the Drawings

[0010] Figure 1 It is a first - perspective three - dimensional sectional view of the present utility model.

[0011] Figure 2 It is an enlarged view of area A in the first - perspective three - dimensional sectional view of the present utility model.

[0012] Figure 3 It is a partial three - dimensional view of the second perspective of the present utility model.

[0013] Figure 4 It is a three - dimensional view of the third perspective of the present utility model.

[0014] Reference Numerals

[0015] 1. Cylinder body, 2. Water inlet pipe, 3. Water outlet pipe, 4. Throttle pipe, 5. Throttle hole, 6. Guide sleeve, 7. Adjusting rod, 8. Floating ball, 9. Chuck, 10. Sealing ring, 11. Elastic member, 12. Balance groove, 13. Flange, 14. Bolt, 15. Guide key, 16. Guide groove. Detailed Description of the Preferred Embodiment

[0016] The following further elaborates in detail on the specific implementation manners of the present utility model in conjunction with the attached Figures 1-4 drawings.

[0017] Embodiment 1. The technical solution it solves is that when this application is in use, as the refrigerant water enters the cylinder body 1, the liquid level of the refrigerant water in the cylinder body 1 will gradually rise to form a liquid seal. However, to prevent the cylinder body 1 from being filled with refrigerant water and affecting the operation of the lithium bromide refrigerator, it is necessary to control the liquid level of the liquid seal. Therefore, this application is provided with a floating ball 8. When the liquid level rises to a certain position, as the refrigerant water continues to flow in, the floating ball 8 will float upward as the liquid level of the refrigerant water rises. The upward floating of the floating ball 8 will drive the adjusting rod 7 to move upward along the guide sleeve 6. Furthermore, the chuck 9 at the lower end of the adjusting rod 7 together with the sealing plug will move upward along the inner wall of the throttle tube 4. Then the sealing plug will disengage from the blockage of the throttle hole 5, and the refrigerant water in the cylinder body 1 will be discharged through the throttle hole 5 and the water outlet pipe 3. As the refrigerant water is discharged, the liquid level will drop. As the liquid level drops, the floating ball 8 and the sealing plug will also move downward to reset and block the throttle hole 5 again until the refrigerated water in the cylinder body 1 rises again and the above process will automatically cycle. Thus, the liquid level in the cylinder body 1 is controlled at a certain level to achieve a throttling effect. The structure of this application is simple, easy to use, and has strong practicability.

[0018] Embodiment 2. On the basis of Embodiment 1, specifically, when this application is in use, the refrigerant water enters the cylinder body 1 through the water inlet pipe 2. Initially, the sealing ring 10 abuts against the inner wall of the throttle tube 4 to block the throttle hole 5, and the refrigerant water cannot pass through the water outlet pipe 3. Then the refrigerant water in the cylinder body 1 will gradually increase to form a liquid seal. As the refrigerant water continues to flow in, the liquid level of the liquid seal will gradually rise. When it rises to a certain extent, the floating ball 8 will float upward as the liquid level rises. The upward floating of the floating ball 8 will drive the adjusting rod 7, the chuck 9, and the sealing ring 10 to move upward synchronously. At the same time, the elastic member 11, that is, the tension spring, will also be compressed. The upward movement of the sealing ring 10 will disengage from the blockage of the throttle hole 5. Then the refrigerant water in the cylinder body 1 will flow out of the cylinder body 1 from the throttle hole 5 and the water outlet pipe 3. As the refrigerant water flows out, the liquid level in the cylinder body 1 will gradually decrease. Then the floating ball 8 will also synchronously drop as the liquid level drops. The adjusting rod 7, the chuck 9, and the sealing plug will also move downward to reset synchronously. During this process, the tension spring will also self-elongate to assist the components to move downward to reset, avoiding jamming during the downward movement of the relevant components and being unable to move downward to reset.

[0019] Embodiment 3. On the basis of Embodiment 2, the adjusting rod 7 is slidably connected to the guide key 15 on the guide sleeve 6 through the guide groove 16, which restricts the adjusting rod 7 to only move vertically along the guide sleeve 6 and cannot rotate, avoiding the torsion of the tension spring and affecting the sensitivity of the pull ring. The lower end of the throttle tube 4 is integrally provided with a flange 13, and is detachably connected to the bottom of the cylinder body 1 through the flange 13 and the bolt 14. The provided balance groove 12 facilitates the balance of the pressure difference between the inside and outside of the throttle tube 4, avoiding the internal pressure generated due to the enclosure inside the throttle tube 4 and affecting the movement of relevant components such as the adjusting rod 7.

Claims

1. An automatic throttling device for a lithium bromide refrigerator, comprising a cylinder (1), characterized in that: The upper part of the cylinder (1) is fixedly connected to a water inlet pipe (2), the bottom of the cylinder (1) is fixedly connected to a water outlet pipe (3), the inner bottom surface of the cylinder (1) is detachably connected to a throttling pipe (4) coaxially corresponding to the water outlet pipe (3), the bottom of the throttling pipe (4) is provided with a plurality of throttling holes (5) evenly distributed around its axis, the upper end of the throttling pipe (4) is integrally coaxially arranged with a guide sleeve (6), the guide sleeve (6) is coaxially slidably connected to an adjusting rod (7), the upper end of the adjusting rod (7) is coaxially fixedly connected to a floating ball (8), the bottom of the adjusting rod (7) is coaxially fixedly connected to a chuck (9), the chuck (9) is coaxially fixedly connected to a sealing ring (10) for blocking the throttling hole (5), the chuck (9) is coaxially fixedly connected to the opposite end of the throttling pipe (4) with an elastic member (11), and the outer edge of the throttling pipe (4) is provided with a balancing groove (12) located above the throttling hole (5).

2. The automatic throttling device for lithium bromide refrigerator according to claim 1, characterized in that: The elastic member (11) is a tension spring.

3. The automatic throttling device for lithium bromide refrigerator according to claim 1, characterized in that: A flange (13) is coaxially arranged integrally at the bottom of the throttling tube (4), and the flange (13) is connected to the inner bottom surface of the cylinder (1) via bolts (14).

4. The automatic throttling device for lithium bromide refrigerator according to claim 1, characterized in that: The inner wall of the guide sleeve (6) is fixedly connected with a guide key (15), and the outer edge of the adjustment rod (7) is provided with a guide groove (16) slidably connected with the guide key (15).

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