Sample cooling device for online TOC detector

Abstract

The utility model discloses a kind of online TOC detector sample cooling devices, it includes spiral cooling pipe, the water outlet end and water inlet end of two ends of spiral cooling pipe respectively, the spiral cooling pipe is equipped with cooling cylinder outside, the axis of the cooling cylinder coincides with the centre line of spiral cooling pipe, the water inlet end and water outlet end of the spiral cooling pipe are all from the wall surface of cooling cylinder, one end of cooling cylinder is gas inlet, the other end is gas outlet, the cooling cylinder is equipped with gas vortex tube connected with gas inlet outside, compressed air regulating valve is connected at the inlet of gas vortex tube, the gas outlet of the cooling cylinder is equipped with exhaust muffler. The utility model utilizes the cold air generated by gas vortex tube and the heat exchange of spiral cooling pipe in cooling cylinder, to cool cooling water in spiral cooling pipe, in the place where ambient temperature is higher, can effectively reduce sample temperature, prevent that sample temperature is too high to cause instrument spare and accessory damage, to prolong the service life of instrument.

Description

Technical Field

[0001] This utility model relates to a sample cooling device for an online TOC detector, belonging to the technical field of water quality testing equipment. Background Technology

[0002] Online TOC (Total Organic Carbon) water quality analyzers are typically used in industries with extremely high water purity requirements, such as pharmaceuticals and biotechnology, medical devices, and aseptic manufacturing. They analyze TOC concentration through real-time water sampling and testing. Because the instrument requires the sample water temperature to not exceed 70°C, and its internal sensors are made of plastic while the sealing gaskets and rings are made of rubber, and it operates 24 hours a day, these components are prone to aging and damage under high-temperature conditions. This can lead to leaks and sensor failure, affecting normal instrument use and shortening its lifespan. Current online TOC analyzers typically use spiral sample cooling tubes, which are ineffective at reducing sample temperature in high-temperature environments. Utility Model Content

[0003] The purpose of this invention is to provide a sample cooling device for an online TOC detector, which solves the technical problem that existing spiral sample cooling tubes cannot effectively reduce sample temperature in environments with high ambient temperatures.

[0004] This utility model adopts the following technical solution: an online TOC detector sample cooling device, which includes a spiral cooling tube with a water outlet and a water inlet at both ends. A cooling cylinder is provided outside the spiral cooling tube, and the axis of the cooling cylinder coincides with the center line of the spiral cooling tube. The water inlet and water outlet of the spiral cooling tube both extend through the wall of the cooling cylinder. One end of the cooling cylinder is a gas inlet and the other end is a gas outlet. A gas vortex tube connected to the gas inlet is provided outside the cooling cylinder. A compressed air regulating valve is connected to the inlet of the gas vortex tube. An exhaust silencer is provided at the gas outlet of the cooling cylinder.

[0005] The gas vortex tube is connected to a compressed air pipe at its inlet, and a first isolation valve is provided on the compressed air pipe. The gas vortex tube is connected to an outlet pipe located inside the cooling cylinder at its outlet.

[0006] The water inlet of the spiral cooling pipe is connected to the circulation system pipe through a pipeline, and a second isolation valve is provided on the pipeline between the water inlet of the spiral cooling pipe and the circulation system pipe.

[0007] The cooling cylinder includes a cylinder body and a front transformer and a rear transformer disposed at both ends of the cylinder body. Both the front transformer and the rear transformer adopt a conical structure. The large ends of the front transformer and the rear transformer are fixedly connected to the two ends of the cylinder body, respectively. The small ends of the front transformer and the rear transformer both have outlets.

[0008] The cylinder has strip-shaped slits at both ends, which extend from the ends to the middle of the cylinder and allow the inlet or outlet of the spiral cooling pipe to pass through. The front and rear adapters cover the ends of the two strip-shaped slits respectively.

[0009] The cylinder has external threads at both ends, and the large ends of the front and rear transformers have internal threads that mate with the external threads of the cylinder.

[0010] The small end of the front transformer is provided with an external thread, and the gas vortex tube is installed on the outside of the small end of the front transformer through the thread.

[0011] The small end of the front transformer has an internal thread, and the gas vortex tube is installed inside the small end of the front transformer through the thread.

[0012] The end of the air outlet pipe that enters the cooling cylinder is a closed end. The wall surface of the air outlet pipe near the closed end is provided with oblique holes, which are obliquely arranged towards the air outlet direction of the cooling cylinder.

[0013] The exhaust muffler is installed on the small end of the rear transformer.

[0014] The beneficial effects of this invention are as follows: This invention places a spiral cooling tube inside a cooling cylinder. During use, cooling water is used to lower the sample temperature. Compressed air is introduced through a gas vortex tube to generate cold air. This cold air exchanges heat with the spiral cooling tube, carrying away the heat from the cooling water inside. The exhaust gas generated after the cold air absorbs heat is silenced by an exhaust muffler before being discharged from the cooling cylinder. This invention utilizes the cold air generated by the gas vortex tube to exchange heat with the spiral cooling tube inside the cooling cylinder, thereby cooling the cooling water inside the spiral cooling tube. In environments with high ambient temperatures, this effectively reduces the sample temperature, preventing damage to instrument components due to excessively high sample temperatures, thus extending the instrument's service life.

[0015] In the preferred embodiment, the cooling cylinder adopts a cylinder structure with adapters at both ends, which simplifies the overall structure of the cooling cylinder and facilitates the installation of the spiral cooling pipe inside.

[0016] In the preferred embodiment, rectangular strip-shaped gaps are left at both ends of the cooling cylinder for the installation of the inlet and outlet water ends of the spiral cooling pipe. The front and rear adapters cover the ends of the strip-shaped gaps, leaving a portion for the spiral cooling pipe inlet and outlet water end connectors to pass through.

[0017] In the preferred embodiment, the obliquely arranged holes are distributed on the wall of the cooling tube, which facilitates the uniform distribution of gas inside the cooling cylinder and enables better heat exchange in the spiral cooling tube. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the sample cooling device of an online TOC detector according to an embodiment of the present invention.

[0019] Figure 2 yes Figure 1 A diagram showing the usage status of the sample cooling device in an online TOC analyzer;

[0020] Figure 3 yes Figure 1 A three-dimensional image;

[0021] Figure 4 yes Figure 1 Schematic diagram of the middle cylinder;

[0022] Figure 5 yes Figure 1 A schematic diagram of a front or rear transformer connector;

[0023] Figure 6 yes Figure 1 A schematic diagram of the central vent pipe.

[0024] In the diagram: 1-cooling cylinder, 2-exhaust pipe, 3-compressed air regulating valve, 4-rear adapter, 5-gas vortex pipe, 6-front adapter, 7-spiral cooling pipe, 8-exhaust silencer, 9-cylinder body, 9.1-strip gap, 10-first isolation valve, 11-second isolation valve. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 6 As shown, an embodiment of the present invention discloses an online TOC detector sample cooling device, which includes a spiral cooling tube 7, with a water outlet and a water inlet at both ends. The water outlet of the spiral cooling tube 7 is connected to the water inlet of the circulating TOC detector. A cooling cylinder 1 is provided outside the spiral cooling tube 7, and the axis of the cooling cylinder 1 coincides with the center line of the spiral cooling tube 7. Both the water inlet and the water outlet of the spiral cooling tube 7 extend from the wall of the cooling cylinder 1. One end of the cooling cylinder 1 is a gas inlet, and the other end is a gas outlet. A gas vortex tube 5 connected to the gas inlet is provided outside the cooling cylinder 1. A compressed air regulating valve 3 is connected to the inlet of the gas vortex tube 5. An exhaust silencer 8 is provided at the gas outlet of the cooling cylinder 1.

[0027] A compressed air pipe is connected to the inlet of the gas vortex pipe 5, and a first isolation valve 10 is provided on the compressed air pipe. An air outlet pipe 2 located inside the cooling cylinder 1 is connected to the outlet of the gas vortex pipe 5. The water inlet of the spiral cooling pipe 7 is connected to the circulation system pipe through a pipe, and a second isolation valve 11 is provided on the pipe between the water inlet of the spiral cooling pipe 7 and the circulation system pipe.

[0028] The cooling cylinder 1 includes a cylinder body 9 and a front transformer 6 and a rear transformer 4 disposed at both ends of the cylinder body 9. Both the front transformer 6 and the rear transformer 4 have a conical structure. The large ends of the front transformer 6 and the rear transformer 4 are fixedly connected to both ends of the cylinder body 9, and the small ends of both the front transformer 6 and the rear transformer 4 have outlets. Strip-shaped slits 9.1 are respectively opened at both ends of the cylinder body 9, extending from the end of the cylinder body 9 towards the middle of the cylinder body 9. The strip-shaped slits 9.1 allow the inlet or outlet of the spiral cooling pipe 7 to pass through. The front transformer 6 and the rear transformer 4 respectively cover the ends of the two strip-shaped slits 9.1. Both ends of the cylinder body 9 are provided with external threads, and the large ends of the front transformer 6 and the rear transformer 4 each have internal threads that mate with the external threads of the cylinder body 9.

[0029] The front transformer 6 has an external thread on its small end, and the gas vortex tube 5 is threaded onto the outside of the small end of the front transformer 6. The front transformer 6 also has an internal thread on its small end, and the gas vortex tube 5 is threaded onto the inside of the small end of the front transformer 6. The end of the exhaust pipe 2 that enters the cooling cylinder 1 is a closed end. The wall surface of the exhaust pipe 2 near the closed end has a row of oblique holes, which are angled towards the exhaust direction of the cooling cylinder 1. The oblique holes are 4mm diameter holes with a downward 45° angle, and there are 6 holes in total, evenly distributed around the circumference of the exhaust pipe. The exhaust muffler 8 is installed on the small end of the rear transformer 4.

[0030] In this utility model, the cooling cylinder 1 is used to house the spiral cooling pipe 7 and serves as a cooling cavity. The front and rear ends of the cooling cylinder 1 are respectively connected to the front transformer 6 and the rear transformer 4. The front transformer 6 is connected to the gas vortex pipe 5 to generate cold air, which is sent to the interior of the cooling cylinder 1 through the exhaust pipe 2. The cold air exchanges heat with the spiral cooling pipe 7 inside the cylinder 9 to reduce the temperature of the cooling water. After heat exchange, the cold air is discharged from the rear transformer 4. During exhaust, the noise is reduced by the exhaust muffler 8.

[0031] The cooling cylinder 1 has a hollow cylindrical structure inside its body 9. The spiral cooling pipe 7 is placed inside the body 9. Long, narrow gaps 9.1 are left at both ends of the body 9 for installing the inlet and outlet water interfaces of the spiral cooling pipe 7. The front adapter 6 and rear adapter 4 at both ends of the body 9 are identical adapters. The inner dimension of the adapter's large end is the same as the outer diameter of the body 9, while the inner dimension of the adapter's small end is smaller than the inner dimension of the spiral cooling pipe 7. The adapter's large end is threaded into the end of the body, extending to the inlet interface of the spiral cooling pipe 7 already installed inside the body 9, covering the long, narrow gap at the end of the body 9.

[0032] This invention can effectively reduce the inlet water temperature of online TOC water quality analyzers in environments with high ambient temperatures, thereby effectively reducing sample temperature, decreasing instrument failure rate, extending service life, and with low investment cost.

Claims

1. A sample cooling device for an online TOC detector, comprising a spiral cooling tube, wherein the two ends of the spiral cooling tube are a water outlet and a water inlet, characterized in that: The spiral cooling pipe is surrounded by a cooling cylinder, the axis of which coincides with the center line of the spiral cooling pipe. The water inlet and outlet of the spiral cooling pipe both extend through the wall of the cooling cylinder. One end of the cooling cylinder is a gas inlet and the other end is a gas outlet. A gas vortex pipe connected to the gas inlet is provided outside the cooling cylinder. A compressed air regulating valve is connected to the inlet of the gas vortex pipe. An exhaust silencer is provided at the gas outlet of the cooling cylinder.

2. The sample cooling device for the online TOC detector according to claim 1, characterized in that: The gas vortex tube is connected to a compressed air pipe at its inlet, and a first isolation valve is provided on the compressed air pipe. The gas vortex tube is connected to an outlet pipe located inside the cooling cylinder at its outlet.

3. The sample cooling device for the online TOC detector according to claim 1, characterized in that: The water inlet of the spiral cooling pipe is connected to the circulation system pipe through a pipeline, and a second isolation valve is provided on the pipeline between the water inlet of the spiral cooling pipe and the circulation system pipe.

4. The sample cooling device for the online TOC detector according to claim 1, characterized in that: The cooling cylinder includes a cylinder body and a front transformer and a rear transformer disposed at both ends of the cylinder body. Both the front transformer and the rear transformer adopt a conical structure. The large ends of the front transformer and the rear transformer are fixedly connected to the two ends of the cylinder body, respectively. The small ends of the front transformer and the rear transformer both have outlets.

5. The sample cooling device for the online TOC detector according to claim 4, characterized in that: The cylinder has strip-shaped slits at both ends, which extend from the ends to the middle of the cylinder and allow the inlet or outlet of the spiral cooling pipe to pass through. The front and rear adapters cover the ends of the two strip-shaped slits respectively.

6. The sample cooling device for the online TOC detector according to claim 4, characterized in that: The cylinder has external threads at both ends, and the large ends of the front and rear transformers have internal threads that mate with the external threads of the cylinder.

7. The sample cooling device for the online TOC detector according to claim 4, characterized in that: The exhaust pipe is fixedly connected to the front transformer, and the gas vortex pipe is fixedly connected to the exhaust pipe.

8. The sample cooling device for the online TOC detector according to claim 7, characterized in that... The small end of the front transformer has an internal thread, and the gas vortex tube is installed inside the small end of the front transformer through the thread.

9. The sample cooling device for the online TOC detector according to claim 4, characterized in that: The end of the air outlet pipe that enters the cooling cylinder is a closed end. The wall surface of the air outlet pipe near the closed end is provided with oblique holes, which are obliquely arranged towards the air outlet direction of the cooling cylinder.

10. The sample cooling device for the online TOC detector according to claim 4, characterized in that: The exhaust muffler is installed on the small end of the rear transformer.

Images