Closed self-separation recovery device for pump inlet

Abstract

The utility model relates to the technical field of chemical production, in particular to a closed self-separation recovery device for a pump inlet, which comprises a material storage tank and a separation chamber, and one or more groups of baffle plates are fixedly arranged in the separation chamber to divide the separation chamber into a gas collection area and a solid deposition area. A first material conveying pipeline and a gas recovery pipeline are communicated between the material storage tank and the separation chamber, a second material conveying pipeline is fixedly communicated with an outlet in the lower part of the separation chamber, and a height difference is formed between the first material conveying pipeline and the second material conveying pipeline; an outlet in the bottom of the separation chamber is fixedly communicated with a blow-off pipeline, a pipeline contractor is fixedly arranged on the first material conveying pipeline, and a pipeline expander is fixedly arranged on the second material conveying pipeline. The gas-liquid separation device is reasonable and compact in structure and convenient to use, the purpose of gas-liquid separation in conveyed materials is achieved through the separation chamber, and then the conveyed and separated pure liquid is stably guided into the conveying pump to be conveyed to the downstream process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of chemical production technical field, it is a pump inlet closed self-separation recovery device. BACKGROUND

[0002] In chemical, petroleum, pharmaceutical and other industries, liquid material often entrains gas in the conveying process, which not only affects the working efficiency of the pump, but also can cause damage to the pump. In addition, the particles entrained in the liquid can also cause wear and blockage to the pump. The traditional treatment method often cannot effectively separate gas, liquid and deposited particles, and it is difficult to achieve closed operation, resulting in material loss and environmental pollution.

[0003] Therefore, a new device is needed to solve these problems. SUMMARY

[0004] The utility model provides a kind of pump inlet closed self-separation recovery device, overcome the above prior art, it can effectively solve the liquid material conveying process in the existing chemical production exists and is entrained gas and particle, influence the working efficiency of delivery pump, and then lead to the problem of easily damaged delivery pump.

[0005] The technical scheme of the utility model is realized by the following measures: a kind of pump inlet closed self-separation recovery device, including material storage tank, separation chamber, first material conveying pipeline is fixedly communicated between material storage tank bottom outlet and separation chamber upper inlet, gas recovery pipeline is fixedly communicated between separation chamber top outlet and material storage tank top inlet, second material conveying pipeline is fixedly communicated with the lower outlet of separation chamber, blowdown pipeline is fixedly communicated with the bottom outlet of separation chamber, pipeline reducer is fixedly arranged on first material conveying pipeline, pipeline expander is fixedly arranged on second material conveying pipeline.

[0006] The following is a further optimization or / and improvement of the above-mentioned utility model technical scheme:

[0007] The baffles are fixedly arranged in the above-mentioned separation chamber, and the baffles are arranged in a group or more.

[0008] A height difference is provided between the first material conveying pipeline and the second material conveying pipeline.

[0009] The first pressure gauge and the first liquid level meter are fixedly arranged on the separation chamber.

[0010] The second material conveying pipeline between the pipeline expander and the second material conveying pipeline outlet is fixedly provided with a delivery pump and a liquid level regulating valve in sequence according to the medium flow direction.

[0011] The gas phase balance pipeline is fixedly communicated with the top outlet of the material storage tank, and the second pressure gauge and the second liquid level meter are fixedly arranged on the material storage tank.

[0012] The gas discharge valve and the blowdown valve are respectively fixed on the gas recovery pipeline and the blowdown pipeline, an interlock is arranged between the first liquid level meter and the blowdown valve, an interlock is arranged between the first pressure gauge and the gas discharge valve, and an interlock is arranged between the second liquid level meter and the liquid level regulating valve.

[0013] The DCS controller, the first pressure gauge, the first liquid level meter, the conveying pump, the liquid level regulating valve, the second pressure gauge, the second liquid level meter, the gas discharge valve and the blowdown valve are electrically connected with the DCS controller.

[0014] The utility model discloses a reasonable and compact structure, convenient to use, its between material storage tank and conveying pump set up separating chamber, separating chamber import and export respectively set up pipeline contracter, pipeline expander. Conveying material passes through pipeline contracter and contracts and then rapidly enters separating chamber, effectively separates the gas in liquid, improves the working efficiency and life of pump, realizes closed operation, reduces material loss and environmental pollution, is applicable to a variety of industrial material conveying. BRIEF DESCRIPTION OF DRAWINGS

[0015] ATTACHED Figure 1 It is process flow schematic diagram of the utility model.

[0016] ATTACHED Figure 1 The codes in the drawing are as follows: 1 is a material storage tank, 2 is a separating chamber, 3 is a first material conveying pipeline, 4 is a gas recovery pipeline, 5 is a second material conveying pipeline, 6 is a blowdown pipeline, 7 is a pipeline contracter, 8 is a pipeline expander, 9 is a first pressure gauge, 10 is a first liquid level meter, 11 is a conveying pump, 12 is a liquid level regulating valve, 13 is a gas phase balance pipeline, 14 is a second pressure gauge, 15 is a second liquid level meter, 16 is a gas discharge valve, 17 is a blowdown valve, 18 is a baffle, and 19 is a DCS controller. DETAILED DESCRIPTION

[0017] The utility model is not limited by the following embodiments, and the specific implementation can be determined according to the technical scheme and actual situation of the utility model.

[0018] In the utility model, if no special description, the equipment and device used are all the equipment and device known in the art.

[0019] In the utility model, in order to facilitate the description, the relative position relation of each component is all described according to the layout mode of the drawing attached to the specification, for example: the position relation of front, back, top, bottom, left and right is determined according to the layout direction of the drawing attached to the specification. Figure 1 Figure 1

[0020] The utility model will be further described in connection with the embodiments and drawings as follows: ​​

[0021] Example 1: As shown in the attached document Figure 1 As shown, the pump inlet sealed self-separating and recovering device includes a material storage tank 1 and a separation chamber 2. A first material conveying pipeline 3 is fixedly connected between the bottom outlet of the material storage tank 1 and the upper inlet of the separation chamber 2. A gas recovery pipeline 4 is fixedly connected between the top outlet of the separation chamber 2 and the top inlet of the material storage tank 1. A second material conveying pipeline 5 is fixedly connected to the lower outlet of the separation chamber 2. A sewage discharge pipeline 6 is fixedly connected to the bottom outlet of the separation chamber 2. A pipe shrinker 7 is fixedly installed on the first material conveying pipeline 3, and a pipe expander 8 is fixedly installed on the second material conveying pipeline 5.

[0022] As needed, the conveyed material enters the separation chamber 2 through the pipe shrinker 7. Due to the increase in cross-sectional area, the flow velocity decreases, and the gas and liquid separate. The gas rises to the upper part of the separation chamber 2, and the pure liquid after separation is sent out through the conveying equipment after passing through the pipe expander 8. The gas accumulated in the upper part of the separation chamber 2 is transported back to the material storage tank 1 through the gas recovery pipeline 4 to achieve closed gas recovery. The separated sediment particles are deposited at the bottom of the separation chamber 2. When the sediment reaches a certain amount, it is discharged through the sewage pipeline 6 to ensure the reliable and safe operation of the liquid conveying equipment.

[0023] In this utility model, the separation chamber 2, the shrinker 7, and the expander 8 together constitute a separation device. The separation chamber 2 has a designed volume of less than 1m³. The shrinker 7 and the expander 8 are common pipe diameter changing components. This separation device is ingeniously designed, easy to install, occupies a small area, and can achieve effective separation of gas and liquid in the conveyed material.

[0024] The above-mentioned closed-loop self-separation and recovery device at the pump inlet can be further optimized and / or improved according to actual needs:

[0025] Example 2: Its difference from Example 1 is as follows: (See attached) Figure 1 As shown, a baffle plate 18 is fixedly installed inside the separation chamber 2, and the baffle plate 18 is configured as one or more.

[0026] As needed, the baffle 18 divides the separation chamber 2 into a gas collection area and a solid deposition area from top to bottom, which facilitates gas-liquid separation.

[0027] Example 3: Its difference from Examples 1 to 2 is as follows: (See attached) Figure 1 As shown, there is a height difference between the first material conveying pipeline 3 and the second material conveying pipeline 5.

[0028] As needed, the outlet of the first material conveying pipeline 3 is located in the upper middle part of the separation chamber 2, and the second material conveying pipeline 5 is located in the lower part of the separation chamber 2. The two form a height difference, which is conducive to the formation of pressure in the separation chamber 2 and the discharge of sediment.

[0029] Embodiment 4: which is different from Embodiments 1 to 3 in that, as shown in the accompanying Figure 1 The first pressure gauge 9 and the first liquid level gauge 10 are fixedly arranged on the separation chamber 2, respectively.

[0030] Embodiment 5: which is different from Embodiments 1 to 4 in that, as shown in the accompanying Figure 1 The second material conveying pipeline 5 between the pipeline expander 8 and the outlet of the second material conveying pipeline 5 is sequentially fixedly arranged with a conveying pump 11 and a liquid level regulating valve 12 according to the flow direction of the medium.

[0031] Embodiment 6: which is different from Embodiments 1 to 5 in that, as shown in the accompanying Figure 1 The gas phase balance pipeline 13 is fixedly communicated with the outlet at the top of the material storage tank 1, and the second pressure gauge 14 and the second liquid level gauge 15 are fixedly arranged on the material storage tank 1, respectively.

[0032] Embodiment 7: which is different from Embodiments 1 to 6 in that, as shown in the accompanying Figure 1 The gas discharge valve 16 and the blowdown valve 17 are fixedly arranged on the gas recovery pipeline 4 and the blowdown pipeline 6, respectively, and the first liquid level gauge 10 and the blowdown valve 17 are arranged with interlocking, the first pressure gauge 9 and the gas discharge valve 16 are arranged with interlocking, and the second liquid level gauge 15 and the liquid level regulating valve 12 are arranged with interlocking.

[0033] According to the need, the conveying material enters the separation chamber 2, and the gas is gathered in the gas collection area at the upper part of the separation chamber. When the pressure reaches a certain value, the gas discharge valve 16 is opened, and the gas is recovered into the material storage tank 1 until the pressure in the material storage tank 1 balances with the production system, thereby achieving the effect of continuously discharging the separated gas.

[0034] The first liquid level gauge 10 and the blowdown valve 17 form a liquid level interlocking, the particulate matter in the conveying material is deposited in the collection chamber 2, and when the first liquid level gauge 10 reaches a high liquid level, the blowdown valve 17 is opened, and when it reaches a low liquid level, the blowdown valve 17 is closed, thereby achieving the purpose of protecting the conveying pump 11.

[0035] Embodiment 8: which is different from Embodiments 1 to 7 in that, as shown in the accompanying Figure 1 It further comprises a DCS controller 19, and the first pressure gauge 9, the first liquid level gauge 10, the conveying pump 11, the liquid level regulating valve 12, the second pressure gauge 14, the second liquid level gauge 15, the gas discharge valve 16 and the blowdown valve 17 are electrically connected with the DCS controller 19.

[0036] According to the need, the pump inlet is sealed from each pipeline and equipment of the separation and recovery device, and according to the production needs, conventional valves, thermometers and pressure gauges commonly known in the art can be arranged. The model of the DCS controller 19 can be the CS3000 controller produced by Yokogawa Company, Japan.

[0037] The above technical features respectively constitute various embodiments of the present application, have strong adaptability and implementation effect, and can increase or decrease unnecessary technical features according to actual needs to meet the needs of different situations.

[0038] The use process of the embodiment of the present application is as follows: firstly, the conveying material enters the separation chamber 2 through the pipeline reducer 7; then, the conveying material is subjected to gas-liquid separation in the separation chamber 2 to obtain separated liquid and separated gas; finally, the separated gas enters the material storage tank 1 through the gas recovery pipeline 4, and the separated liquid is conveyed to the next process by the conveying pump 11.

Claims

1. A pump inlet containment self-separation recovery device, characterized by The material storage tank, the separation chamber, the first material conveying pipeline fixedly communicated between the bottom outlet of the material storage tank and the upper inlet of the separation chamber, the gas recovery pipeline fixedly communicated between the top outlet of the separation chamber and the top inlet of the material storage tank, the second material conveying pipeline fixedly communicated with the lower outlet of the separation chamber, and the blowdown pipeline fixedly communicated with the bottom outlet of the separation chamber are arranged.

2. The pump inlet containment and self-separation recovery apparatus of claim 1, wherein The baffle is fixedly arranged in the separation chamber.

3. A pump inlet containment self-separation recovery apparatus according to claim 1 or 2, characterised in that The first material conveying pipeline and the second material conveying pipeline are arranged with a height difference.

4. A pump inlet containment self-separation recovery apparatus according to claim 1 or 2, characterised in that The first pressure gauge and the first liquid level meter are fixedly arranged on the separation chamber.

5. The pump inlet containment and self-separation recovery apparatus of claim 3, wherein The first pressure gauge and the first liquid level meter are fixedly arranged on the separation chamber.

6. A pump inlet containment self-separation recovery apparatus according to claim 1 or 2 or 5 wherein The conveying pump and the liquid level adjusting valve are fixedly arranged on the second material conveying pipeline between the pipeline expander and the outlet of the second material conveying pipeline according to the medium flow direction.

7. The pump inlet containment and self-separation recovery apparatus of claim 4, wherein The conveying pump and the liquid level adjusting valve are fixedly arranged on the second material conveying pipeline between the pipeline expander and the outlet of the second material conveying pipeline according to the medium flow direction.

8. The pump inlet containment and self-separation recovery apparatus of claim 1 or 2 or 5 or 7, wherein The gas phase balance pipeline is fixedly communicated with the top outlet of the material storage tank.

9. The pump inlet containment and self-separation recovery apparatus of claim 8, wherein The gas discharge valve and the blowdown valve are fixedly arranged on the gas recovery pipeline and the blowdown pipeline respectively.

10. The pump inlet containment and self-separation recovery apparatus of claim 9, wherein The interlock is arranged between the first liquid level meter and the blowdown valve, the interlock is arranged between the first pressure gauge and the gas discharge valve, and the interlock is arranged between the second liquid level meter and the liquid level adjusting valve. The DCS controller, the first pressure gauge, the first liquid level meter, the conveying pump, the liquid level adjusting valve, the second pressure gauge, the second liquid level meter, the gas discharge valve and the blowdown valve are electrically connected with the DCS controller.

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