Drainage device of heat exchanger

Abstract

The utility model provides a drainage device of a heat exchanger, which relates to the technical field of heat exchangers and comprises a shell, and a water inlet pipe is fixedly embedded at the top of one side of the shell. Water flowing out of the water inlet pipe flows into the inner cavity of the shell, water scale in the water is filtered by the filter cartridge, the filtered water flows back to the heat exchanger from the water outlet pipe, and the water scale precipitates downwards at the top of the inner cavity of the shell, passes through the conical precipitation baffle and reaches the bottom of the inner cavity of the shell. By means of the design, water in the heat exchanger can be filtered at any time, and blocking of the interior of the heat exchanger due to large scale is avoided; the opening time and the maximum discharge capacity of the electronic valve are set through the control terminal, after the time is up, the control terminal controls the electronic valve to be opened, scale deposited at the bottom of the inner cavity of the shell is discharged from the drainage pipe, and then the control terminal controls the electronic valve to be closed, so that the labor intensity of workers is relieved; and the precipitated water scale does not need to be discharged manually.

Description

Technical Field

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

[0002] At present, finned heat exchangers usually use water as the heat exchange medium to achieve the purpose of heat exchange. Generally, when the heat exchanger is not in use, the water in the heat exchanger is discharged through the water outlet valve set at the bottom of the heat exchanger to prevent the water in the heat exchanger from freezing and expanding and bursting the heat exchange tubes. It is suitable for areas with higher temperatures.

[0003] However, in the prior art, it was found that in the drainage devices of heat exchangers, some of the drainage devices of heat exchangers could not filter the water in the heat exchanger at all times. The scale in the water may accumulate over a long period of time to form large lumps and block the heat exchange tubes. At the same time, the precipitated scale requires frequent manual opening of the valve for drainage, thereby increasing the labor intensity of the workers and reducing the drainage efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a drainage device for a heat exchanger.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a drainage device for a heat exchanger, comprising: a shell, a water inlet pipe fixedly embedded in the top of one side of the shell, a water outlet pipe fixedly embedded in the top of the shell, a drainage pipe fixedly embedded in the bottom of the other side of the shell, a filter assembly provided on the surface of the bottom of the water outlet pipe, and an intelligent drainage assembly provided on one side of the shell.

[0006] Preferably, an observation window is fixedly embedded on one side of the shell.

[0007] Preferably, the filter assembly includes a connecting sleeve and a conical sedimentation baffle, a filter cartridge is fixedly embedded in the inner cavity at the bottom of the connecting sleeve, and a plug is fixedly sleeved on the surface of the bottom of the filter cartridge.

[0008] Preferably, the intelligent drainage component includes a control terminal, an electronic valve and a liquid flow sensor.

[0009] Preferably, the inner cavity of the top of the connecting sleeve is fixedly sleeved on the surface of the bottom of the water outlet pipe, and the surface of the top of the conical sedimentation baffle is fixedly embedded in the inner cavity of the outer shell.

[0010] Preferably, the surface of the control terminal is fixedly connected to one side of the housing, the electronic valve is arranged and installed inside the drain pipe, and the top of the liquid flow sensor is fixedly connected to the top of the inner cavity of the drain pipe.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] (1) In the present invention, the water inlet pipe of the device is connected to the water inlet pipe of the heat exchanger, the water outlet pipe is connected to the water outlet pipe of the heat exchanger, and the device is connected to an external power supply device. The external power supply device provides power to the control terminal, the electronic valve and the liquid flow sensor. The control terminal is electrically connected to the electronic valve and is controlled in association. The liquid flow sensor can monitor the flow of water discharged from the drain pipe in real time and transmit it to the control terminal. The water flowing out of the water inlet pipe flows into the inner cavity of the shell, and the scale in the water will be filtered by the filter cartridge. The filtered water flows back to the heat exchanger from the water outlet pipe. The scale is precipitated downward from the top of the inner cavity of the shell and passes through the conical precipitation baffle to the bottom of the inner cavity of the shell. In this way, the device can filter the water in the heat exchanger at all times to avoid the formation of large scale and blockage of the heat exchanger.

[0013] (2) The utility model sets the opening time and maximum discharge capacity of the electronic valve through the control terminal. When the time is reached, the control terminal controls the opening of the electronic valve, and the scale deposited at the bottom of the inner cavity of the shell is discharged from the drain pipe. Then the control terminal controls the closing of the electronic valve and records the drainage volume. When the accumulated drainage volume reaches the set maximum drainage volume, the control terminal will issue a prompt to remind the staff to add water to the inside of the heat exchanger. This design reduces the labor intensity of the workers and eliminates the need to manually discharge the deposited scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments.

[0015] Figure 1 This is a schematic overview of a drainage device for a heat exchanger proposed in the present invention;

[0016] Figure 2 This is a cross-sectional view of a drainage device for a heat exchanger proposed in the present utility model;

[0017] Figure 3 This is a schematic diagram of a conical sedimentation baffle of a drainage device for a heat exchanger proposed in the present invention;

[0018] Figure 4 This is a schematic diagram of a filter assembly of a drainage device for a heat exchanger proposed in the present invention.

[0019] Legend:

[0020] 1. Housing; 101. Water inlet pipe; 102. Water outlet pipe; 103. Observation window; 104. Drain pipe; 2. Filter assembly; 201. Connecting sleeve; 202. Filter cartridge; 203. Plug; 204. Conical sedimentation baffle; 3. Intelligent drainage assembly; 301. Control terminal; 302. Electronic valve; 303. Liquid flow sensor. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0022] Please refer to Figure 1-4 The utility model provides a technical solution: a drainage device for a heat exchanger, comprising: a shell 1, a water inlet pipe 101 fixedly embedded in the top of one side of the shell 1, a water outlet pipe 102 fixedly embedded in the top of the shell 1, a drainage pipe 104 fixedly embedded in the bottom of the other side of the shell 1, a filter component 2 is provided on the surface of the bottom of the water outlet pipe 102, and an intelligent drainage component 3 is provided on one side of the shell 1.

[0023] Specifically: water flowing out of the water inlet pipe 101 flows into the inner cavity of the shell 1, and the scale in the water will be filtered by the filter cartridge 202. The filtered water flows back to the heat exchanger from the water outlet pipe 102, and the scale is precipitated downward at the top of the inner cavity of the shell 1 through the conical precipitation baffle 204 to the bottom of the inner cavity of the shell 1. This design of this device can filter the water in the heat exchanger at all times to avoid the formation of large scale and blockage of the heat exchanger; the opening time and maximum discharge capacity of the electronic valve 302 are set by the control terminal 301. After the time is reached, the control terminal 301 controls the opening of the electronic valve 302, and the scale deposited at the bottom of the inner cavity of the shell 1 is discharged from the drain pipe 104. Then the control terminal 301 controls the closing of the electronic valve 302. This design reduces the labor intensity of workers and there is no need to manually discharge the deposited scale.

[0024] In this embodiment, an observation window 103 is fixedly embedded on one side of the housing 1 .

[0025] Specifically, the scale precipitation at the bottom of the inner cavity of the housing 1 can be observed through the observation window 103 .

[0026] In this embodiment, the filter assembly 2 includes a connecting sleeve 201 and a conical sedimentation baffle 204 . A filter cartridge 202 is fixedly embedded in the inner cavity at the bottom of the connecting sleeve 201 , and a plug 203 is fixedly sleeved on the surface of the bottom of the filter cartridge 202 .

[0027] Specifically, the conical sedimentation baffle 204 can prevent scale deposited at the bottom of the inner cavity of the shell 1 from returning to the upper part of the inner cavity of the shell 1 under the action of water flow.

[0028] In this embodiment: the intelligent drainage component 3 includes a control terminal 301 , an electronic valve 302 and a liquid flow sensor 303 .

[0029] Specifically, the opening time and maximum discharge capacity of the electronic valve 302 are set through the control terminal 301. When the time is reached, the control terminal 301 controls the opening of the electronic valve 302, and the scale deposited at the bottom of the inner cavity of the shell 1 is discharged from the drain pipe 104. Then the control terminal 301 controls the closing of the electronic valve 302 and records the discharge volume. When the cumulative discharge volume reaches the set maximum discharge volume, the control terminal 301 will issue a prompt to prompt the staff to add water to the inside of the heat exchanger. This design reduces the labor intensity of the workers and there is no need to manually discharge the deposited scale; when the heat exchanger is not in use, the control terminal 301 can be manually controlled to open the electronic valve 302 to discharge the water inside the heat exchanger to prevent the water in the heat exchanger from freezing and expanding and bursting the heat exchange tubes.

[0030] In this embodiment, the inner cavity at the top of the connecting sleeve 201 is fixedly sleeved on the surface of the bottom of the water outlet pipe 102 , and the top surface of the conical sedimentation baffle 204 is fixedly embedded in the inner cavity of the outer shell 1 .

[0031] Specifically, the conical sedimentation baffle 204 can prevent scale deposited at the bottom of the inner cavity of the shell 1 from returning to the upper part of the inner cavity of the shell 1 under the action of water flow.

[0032] In this embodiment: the surface of the control terminal 301 is fixedly connected to one side of the housing 1 , the electronic valve 302 is arranged and installed inside the drain pipe 104 , and the top of the liquid flow sensor 303 is fixedly connected to the top of the inner cavity of the drain pipe 104 .

[0033] Specifically, the liquid flow sensor 303 can monitor the flow of water discharged from the drain pipe 104 in real time and transmit it to the control terminal 301. The control terminal 301 records the drainage volume. When the cumulative drainage volume reaches the set maximum drainage volume, the control terminal 301 will issue a prompt to remind the staff to add water to the inside of the heat exchanger to avoid affecting the normal function of the heat exchanger.

[0034] Working principle: The water inlet pipe 101 of this device is connected to the water inlet pipe of the heat exchanger, the water outlet pipe 102 is connected to the water outlet pipe of the heat exchanger, and is connected to an external power supply device. The external power supply device provides power to the control terminal 301, the electronic valve 302 and the liquid flow sensor 303. The control terminal 301 is electrically connected to the electronic valve 302 and is controlled in association. The liquid flow sensor 303 can monitor the flow of water discharged from the drain pipe 104 in real time and transmit it to the control terminal 301; the water flowing out of the water inlet pipe 101 flows into the inner cavity of the shell 1, and the scale in the water will be filtered by the filter cartridge 202. The filtered water flows back to the heat exchanger from the water outlet pipe 102, and the scale is precipitated downward at the top of the inner cavity of the shell 1 and passes through the conical precipitation baffle 204 to The bottom of the inner cavity of the shell 1 is designed in this way. This device can filter the water in the heat exchanger at all times to prevent the formation of large scale and blockage of the heat exchanger; the opening time and maximum discharge capacity of the electronic valve 302 are set through the control terminal 301. After the time is reached, the control terminal 301 controls the opening of the electronic valve 302, and the scale deposited at the bottom of the inner cavity of the shell 1 is discharged from the drain pipe 104. Then the control terminal 301 controls the closing of the electronic valve 302 and records the drainage volume. When the cumulative drainage volume reaches the set maximum drainage volume, the control terminal 301 will issue a prompt to remind the staff to add water to the inside of the heat exchanger. This design reduces the labor intensity of the workers and there is no need to manually discharge the deposited scale.

[0035] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A drainage device for a heat exchanger, characterized in that: include: A housing (1) is provided, wherein a water inlet pipe (101) is fixedly embedded in the top of one side of the housing (1), a water outlet pipe (102) is fixedly embedded in the top of the housing (1), a drainage pipe (104) is fixedly embedded in the bottom of the other side of the housing (1), a filter assembly (2) is provided on the surface of the bottom of the water outlet pipe (102), and an intelligent drainage assembly (3) is provided on one side of the housing (1).

2. The drainage device of a heat exchanger according to claim 1, characterized in that: An observation window (103) is fixedly embedded on one side of the housing (1).

3. The drainage device of a heat exchanger according to claim 1, characterized in that: The filter assembly (2) comprises a connecting sleeve (201) and a conical sedimentation baffle (204); a filter cartridge (202) is fixedly embedded in the inner cavity at the bottom of the connecting sleeve (201); and a plug (203) is fixedly sleeved on the surface of the bottom of the filter cartridge (202).

4. The drainage device of a heat exchanger according to claim 1, characterized in that: The intelligent drainage component (3) comprises a control terminal (301), an electronic valve (302) and a liquid flow sensor (303).

5. The drainage device of a heat exchanger according to claim 3, characterized in that: The inner cavity at the top of the connecting sleeve (201) is fixedly sleeved on the surface of the bottom of the water outlet pipe (102), and the surface at the top of the conical sedimentation baffle (204) is fixedly embedded in the inner cavity of the outer shell (1).

6. The drainage device of a heat exchanger according to claim 4, characterized in that: The surface of the control terminal (301) is fixedly connected to one side of the housing (1), the electronic valve (302) is arranged and installed inside the drain pipe (104), and the top of the liquid flow sensor (303) is fixedly connected to the top of the inner cavity of the drain pipe (104).

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