Circulating system dosing device and circulating system
By designing the dosing tank, exhaust valve and valve structure in the circulation system, and using the power of the circulation system to add the agent, the problem of expensive and complex maintenance of the electric pump is solved, and a low-cost, environmentally friendly and reliable dosing operation is achieved.
Patent Information
- Application Number
- CN202422088324.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-27
AI Technical Summary
In the existing dosing devices of forced circulation systems such as heating and cooling, electric pumps are expensive and complex in maintenance, resulting in high maintenance costs and are not suitable for frequent operation of large process systems.
The dosing tank, exhaust valve, liquid filling valve and liquid outlet valve are designed, and the drug is added to the circulation system by using the power of the circulation system. The dosing is achieved by controlling the opening and closing of the valve, without additional equipment and energy, and the structure is simple and easy to operate and maintain.
The dosing operation without additional equipment and energy is achieved, which reduces maintenance costs, improves operation convenience and reliability, and the device is environmentally friendly and reliable.
Smart Images
Figure CN223090446U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circulation systems, in particular to a chemical dosing device for a circulation system and a circulation system. Background Art
[0002] The chemical dosing devices of systems with mechanical forced circulation such as heating and cooling mostly include a chemical dosing tank and an electric pump. The inlet and outlet of the electric pump are respectively connected to the chemical dosing tank and the circulation system. The electric pump serves as the kinetic energy source for dosing, and the chemical agent in the chemical dosing tank is added to the circulation system through the electric pump. The price of the electric pump is relatively expensive. After the accessories of the electric pump are damaged, the price of the accessories is several times higher than its own value, and the maintenance operation is relatively complicated, which is not suitable for frequent operation of large process systems. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a chemical dosing device for a circulation system and a circulation system to solve the problems existing in the above-mentioned prior art, which can realize liquid addition without using other equipment and energy additionally, has a simple structure, is easy to operate, has simple maintenance, is easy to manufacture and install, is environmentally friendly and reliable, and has a low cost.
[0004] To achieve the above purpose, the utility model provides the following scheme:
[0005] The utility model provides a chemical dosing device for a circulation system, including:
[0006] A chemical dosing tank, which is provided with a chemical dosing port, a first liquid inlet, a first liquid outlet and an exhaust port. The first liquid inlet is used to communicate with the second liquid outlet of the circulation system, and the first liquid outlet is used to communicate with the second liquid inlet of the circulation system. The medium in the circulation system can flow from the second liquid outlet to the second liquid inlet under the circulation power.
[0007] An exhaust valve, which can be communicated with the exhaust port, and the exhaust port can be opened or closed by opening and closing the exhaust valve.
[0008] A liquid adding valve, which is arranged on the pipeline between the first liquid inlet and the second liquid outlet.
[0009] A liquid outlet valve, which is arranged on the pipeline between the first liquid outlet and the second liquid inlet.
[0010] Preferably, it further includes a first check valve, which is arranged on the pipeline between the first liquid outlet and the second liquid inlet.
[0011] Preferably, it further includes an overflow pipeline. The exhaust port is arranged at the upper end of the chemical dosing tank. The first end of the overflow pipeline is communicated with and hermetically connected to the exhaust port, and the second end of the overflow pipeline can be communicated with the drainage ditch.
[0012] Preferably, it further includes a liquid level detection device fixedly connected to the chemical dosing tank, and the liquid level detection device is used to detect the liquid level of the liquid in the chemical dosing tank.
[0013] Preferably, the height of the liquid level detection device is lower than the height of the exhaust port.
[0014] Preferably, it further includes a drain valve. A drain port is provided at the bottom of the chemical dosing tank. The drain valve can communicate with the drain port, and the drain port can be opened or closed by opening and closing the drain valve.
[0015] Preferably, it further includes a chemical dosing funnel and a chemical dosing valve. The inlet and outlet of the chemical dosing valve are respectively communicated with the outlet of the chemical dosing funnel and the chemical dosing port.
[0016] Preferably, it further includes a second check valve. The inlet and outlet of the second check valve are respectively communicated with the outlet of the chemical dosing funnel and the chemical dosing port.
[0017] The present utility model further provides a circulation system, including the circulation pump and the chemical dosing device of the circulation system. The circulation pump is provided with the second inlet and the second outlet. The first inlet is communicated with the second outlet, and the first outlet is communicated with the second inlet.
[0018] The present utility model has achieved the following technical effects compared with the prior art:
[0019] The present utility model provides a chemical dosing device and a circulation system for a circulation system, including a chemical dosing tank, an exhaust valve, a liquid adding valve, and an outlet valve. The chemical dosing tank is provided with a chemical dosing port, a first inlet, a first outlet, and an exhaust port; the first inlet is used to communicate with the second outlet of the circulation system, the first outlet is used to communicate with the second inlet of the circulation system, and the medium in the circulation system can flow from the second outlet to the second inlet under the circulation power; the exhaust valve can communicate with the exhaust port, and the exhaust port can be opened or closed by opening and closing the exhaust valve; the liquid adding valve is arranged on the pipeline between the first inlet and the second outlet; the outlet valve is arranged on the pipeline between the first outlet and the second inlet.
[0020] Under the normal circulation of the circulation system, check all valves of the dosing device for the closed circulation system, open the exhaust valve, add the medicament into the dosing tank, open the liquid adding valve, so that the liquid in the circulation system enters the dosing tank and is mixed with the medicament, and the air in the tank is discharged from the dosing tank; after the liquid adding is completed, close the exhaust valve, open the liquid outlet valve, so that the medicament mixture in the dosing tank is added to the circulation system under the pressure difference in the circulation system, without the need to use other equipment and energy additionally. It has a simple structure, is easy to operate, has simple maintenance, is easy to manufacture and install, is environmentally friendly and reliable, and has low cost. Brief Description of the Drawings
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0022] Figure 1 It is a schematic structural diagram of the dosing device for the circulation system provided in Embodiment 1;
[0023] Figure 2 It is a schematic working diagram of the circulation system provided in Embodiment 2;
[0024] In the figure: 100, dosing device for the circulation system; 200, circulation system; 1, dosing tank; 101, dosing port; 102, first liquid inlet; 103, first liquid outlet; 104, exhaust port; 105, sewage outlet; 2, second liquid outlet; 3, second liquid inlet; 4, exhaust valve; 5, liquid adding valve; 6, liquid outlet valve; 7, first check valve; 8, overflow pipeline; 9, drainage ditch; 10, liquid level detection device; 11, sewage valve; 12, dosing funnel; 1201, funnel body; 1202, dosing funnel cover; 13, dosing valve; 14, second check valve; 15, circulation pump. Detailed Embodiments
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0026] The purpose of the present utility model is to provide a chemical dosing device for a circulation system and a circulation system, so as to solve the problems existing in the above-mentioned prior art. Liquid addition can be achieved without the need to additionally use other equipment and energy. The structure is simple, easy to operate, simple in maintenance and repair, easy to manufacture and install, environmentally friendly, reliable, and low in cost.
[0027] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] As Figure 1 shown, the present utility model provides a chemical dosing device 100 for a circulation system, including: a chemical dosing tank 1, an exhaust valve 4, a liquid addition valve 5 and a liquid outlet valve 6. The chemical dosing tank 1 is provided with a chemical dosing port 101, a first liquid inlet 102, a first liquid outlet 103 and an exhaust port 104. The first liquid inlet 102 is used to communicate with the second liquid outlet 2 of the circulation system 200, and the first liquid outlet 103 is used to communicate with the second liquid inlet 3 of the circulation system 200. The medium in the circulation system 200 can flow from the second liquid outlet 2 to the second liquid inlet 3 under the circulation power; the exhaust valve 4 can communicate with the exhaust port 104, and the exhaust port 104 can be opened or closed by opening and closing the exhaust valve 4; the liquid addition valve 5 is arranged on the pipeline between the first liquid inlet 102 and the second liquid outlet 2; the liquid outlet valve 6 is arranged on the pipeline between the first liquid outlet 103 and the second liquid inlet 3.
[0029] Under the normal circulation of the circulation system 200, check and close all the valves of the chemical dosing device 100 for the circulation system, open the exhaust valve 4, add the chemical agent into the chemical dosing tank 1, open the liquid addition valve 5, so that the liquid in the circulation system 200 enters the chemical dosing tank 1 and is mixed with the chemical agent, and the air in the tank is discharged from the chemical dosing tank 1; after the liquid addition is completed, close the exhaust valve 4, open the liquid outlet valve 6, so that the chemical agent mixture in the chemical dosing tank 1 is added to the circulation system 200 under the pressure difference in the circulation system 200, without the need to additionally use other equipment and energy, which is economical and environmentally friendly.
[0030] In this embodiment, the height of the first liquid inlet 102 is higher than the height of the first liquid outlet 103, and the height of the second liquid outlet 2 is higher than the height of the second liquid inlet 3, ensuring that the liquid medicine can be fully added to the system and reducing or avoiding the residue of the liquid medicine in the chemical dosing tank 1.
[0031] In this embodiment, it further includes a first check valve 7, and the first check valve 7 is arranged on the pipeline between the first liquid outlet 103 and the second liquid inlet 3. The first check valve 7 can prevent the backflow of the chemical agent mixture during the chemical dosing process and prevent the occurrence of water hammer when the liquid outlet valve 6 is closed.
[0032] In this embodiment, an overflow pipeline 8 is further included. The exhaust port 104 is arranged at the upper end of the chemical dosing tank 1. The first end of the overflow pipeline 8 is communicated and sealed with the exhaust port 104, and the second end of the overflow pipeline 8 can be communicated with the drainage ditch 9. When the liquid level exceeds the exhaust port 104, it can be discharged to the drainage ditch 9 through the overflow pipeline 8 to avoid equipment damage.
[0033] In this embodiment, a liquid level detection device 10 is further included. The liquid level detection device 10 is fixedly connected to the chemical dosing tank 1. The liquid level detection device 10 is used to detect the liquid level of the liquid in the chemical dosing tank 1. When the liquid level reaches the height where the liquid level detection device 10 is located, the liquid addition is stopped.
[0034] In this embodiment, the height of the liquid level detection device 10 is lower than the height of the exhaust port 104.
[0035] In this embodiment, a drain valve 11 is further included. A drain port 105 is arranged at the bottom of the chemical dosing tank 1. The drain valve 11 can be communicated with the drain port 105, and the drain port 105 can be opened or closed by opening and closing the drain valve 11. By opening the drain valve 11, sewage and cleaning liquid can be discharged through the drain port 105.
[0036] As a preferred embodiment, the drain valve 11 is arranged on the pipeline communicated and connected with the drain port 105, and the outlet of this pipeline is arranged in the drainage ditch 9 to discharge dirt, cleaning liquid, etc. to the drainage ditch 9.
[0037] In this embodiment, a chemical dosing funnel 12 and a chemical dosing valve 13 are further included. The inlet and outlet of the chemical dosing valve 13 are respectively communicated with the outlet of the chemical dosing funnel 12 and the chemical dosing port 101. The chemical dosing funnel 12 includes a funnel body 1201 and a chemical dosing funnel cover 1202 which are movably connected.
[0038] In this embodiment, a second check valve 14 is further included. The inlet and outlet of the second check valve 14 are respectively communicated with the outlet of the chemical dosing funnel 12 and the chemical dosing port 101. The chemical dosing funnel 12 and the second check valve 14 can effectively avoid the chemical agent splashing caused by misoperation. For example, if the valve of the circulation system 200 is misopened, the pressure in the chemical dosing tank 1 will increase, resulting in splashing.
[0039] This embodiment is applicable to all circulation systems 200 with a circulation pump 15. As a preferred embodiment, the second liquid outlet 2 is arranged at the outlet of the circulation pump 15, and the second liquid inlet 3 is arranged at the inlet of the circulation pump 15. The outlet pressure of the circulation pump 15 is greater than the inlet pressure, thus forming a pressure difference, and the pressure difference between the inlet and outlet of the circulation pump 15 is relatively large, which is beneficial to reducing the residual amount of the liquid medicine and improving the chemical dosing effect. The chemical dosing tank 1, valves, etc. of this embodiment are made of corrosion-resistant stainless steel plates, which can ensure the long-term use of the device.
[0040] In practical applications, the specific operation is as follows:
[0041] Step 1: Under the normal circulation of the circulation system 200, check and close all valves. Open the medicine adding funnel cover 1202, add medicine into the medicine adding funnel 12, and then cover the medicine adding funnel cover 1202.
[0042] Step 2: Open the exhaust valve 4, and then open the medicine adding valve 13. The medicine will flow into the medicine adding tank 1 through the second check valve 14, and at the same time, the air in the tank is exhausted through the tank body air exhaust valve 4.
[0043] Step 3: After the medicine is poured into the tank, close the medicine adding valve 13. Open the liquid adding valve 5 to inject the medium (such as water) in the circulation system 200 into the tank and mix it with the medicine. After injecting to the upper end of the liquid level detection device 10 (such as a liquid level gauge), close the exhaust valve 4. Slowly open the liquid outlet valve 6. The medium in the circulation system 200 flows through the inside of the tank from the second liquid outlet 2 (the outlet of the circulation pump 15), and brings the mixed medicine into the second liquid inlet 3 (the inlet of the circulation pump 15). Since the outlet of the circulation pump 15 is smaller than the medicine adding port 101 (the second liquid inlet 3), after circulating for 5 minutes, the medicine can completely enter the system, and the medicine adding operation is completed.
[0044] Step 4: When the mixed medicine in the tank circulates into the circulation system 200, the medicine adding is completed. Slowly close the liquid inlet valve and the liquid outlet valve 6. After opening the drain valve 11 to relieve the pressure, then open the exhaust valve 4 and the medicine adding valve 13. At the same time, pour clean water into the medicine adding funnel 12 to wash the tank. After the drain valve 11 discharges clean water, close all valves, and the medicine adding and washing process is completed.
[0045] As a preferred embodiment, it further includes a pressure gauge. The pressure gauge is arranged on the pipeline between the first liquid inlet 102 and the second liquid outlet 2 for measuring the pressure in this pipeline. When there is no medicine adding, if the pressure gauge shows pressure, it indicates that there is liquid leaking from the circulation system 200 into the medicine adding tank 1, and pressure relief is required to ensure that there is no pressure on one side of the medicine adding tank 1 under normal non-medicine adding conditions. When performing the medicine adding operation, pay attention to observing the pressure gauge when opening and closing the valves to avoid misoperation resulting in medicine splashing.
[0046] Embodiment 2
[0047] As Figure 2 shown, this embodiment provides a circulation system 200, which includes a circulation pump 15 and the circulation system medicine adding device 100 in Embodiment 1. The circulation pump 15 is provided with a second liquid inlet 3 and a second liquid outlet 2. The first liquid inlet 102 is communicated with the second liquid outlet 2, and the first liquid outlet 103 is communicated with the second liquid inlet 3.
[0048] In this utility model, specific examples are used to expound the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the utility model.
Claims
1. A dosing device for a circulation system, characterized in that: Comprising: A chemical addition tank, which is provided with a chemical addition port, a first liquid inlet, a first liquid outlet and an exhaust port. The first liquid inlet is used to communicate with the second liquid outlet of the circulation system, and the first liquid outlet is used to communicate with the second liquid inlet of the circulation system. The medium in the circulation system can flow from the second liquid outlet to the second liquid inlet under the circulation power. An exhaust valve, which can communicate with the exhaust port, and the exhaust port can be opened or closed by opening or closing the exhaust valve. A liquid addition valve, which is arranged on the pipeline between the first liquid inlet and the second liquid outlet. A liquid outlet valve, which is arranged on the pipeline between the first liquid outlet and the second liquid inlet.
2. The dosing device for the recirculation system according to claim 1, characterized in that: It further comprises a first check valve, which is arranged on the pipeline between the first liquid outlet and the second liquid inlet.
3. The dosing device for the circulation system according to claim 1, wherein: It further comprises an overflow pipeline. The exhaust port is arranged at the upper end of the chemical addition tank. The first end of the overflow pipeline is communicated with and hermetically connected to the exhaust port, and the second end of the overflow pipeline can be communicated with the drainage ditch.
4. The dosing device for a circulation system according to claim 1, characterized in that: It further comprises a liquid level detection device, which is fixedly connected to the chemical addition tank and is used to detect the liquid level of the liquid in the chemical addition tank; the height of the liquid level detection device is lower than the height of the exhaust port.
5. The dosing device for a circulation system according to claim 1, characterized in that: The height of the first liquid inlet is higher than the height of the first liquid outlet, and the height of the second liquid outlet is higher than the height of the second liquid inlet.
6. The dosing device for the circulation system according to any one of claims 1-5, characterized in that: It further comprises a blowdown valve. A blowdown port is arranged at the bottom of the chemical addition tank. The blowdown valve can communicate with the blowdown port, and the blowdown port can be opened or closed by opening or closing the blowdown valve.
7. The dosing device for the circulation system according to any one of claims 1-5, characterized in that: It further comprises a chemical addition funnel and a chemical addition valve. The inlet and outlet of the chemical addition valve are respectively communicated with the outlet of the chemical addition funnel and the chemical addition port.
8. The dosing device for the circulation system according to claim 7, characterized in that: It further comprises a second check valve. The inlet and outlet of the second check valve are respectively communicated with the outlet of the chemical addition funnel and the chemical addition port.
9. A circulatory system, characterized in that: Comprising a circulation pump and the circulation system chemical addition device according to any one of claims 1-8. The circulation pump is provided with the second liquid inlet and the second liquid outlet. The first liquid inlet is communicated with the second liquid outlet, and the first liquid outlet is communicated with the second liquid inlet.