Cyclopentane foaming device

A foaming equipment, cyclopentane technology, applied in the field of polyurethane foaming, can solve the problems of large volume, many driving motors, complex structure, etc.

Pending Publication Date: 2020-07-17
成都东日瑞姆机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of cyclopentane foaming equipment, to solve the problem that when cyclopentane is used for foaming in the prior art, there are many equipment driving motors, high energy consumption, and large safety hazards; and the structure is complicated, the cost is high, and the volume is large. , The problem of equipment miniaturization is difficult, not only can ensure high-precision measurement, but also can greatly improve safety performance and greatly reduce equipment cost, and significantly reduce energy consumption

Method used

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  • Cyclopentane foaming device
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  • Cyclopentane foaming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as figure 2 , image 3 and Figure 5 A kind of cyclopentane foaming equipment shown, comprises white material tank 9, black material tank 7, the mixing head 22 that is used for polyurethane foaming, also comprises high-pressure metering pump 5, and described high-pressure metering pump 5 is used for white The material and the black material are pumped to the mixing head 22 respectively; the pipelines of the high-pressure metering pump 5 pumping the white material and the black material are all connected to the accumulator 19, and the back pressure of the accumulator 19 on the pipeline of the pumping white material is greater than The accumulator 19 back pressure on the pipeline that pumps the black material. In the present embodiment, the accumulator 19 is an airbag type accumulator, wherein the inflation pressure of the accumulator 19 on the pipeline for pumping white material is 0.5 to 50% larger than the inflation pressure of the accumulator 19 on the pipelin...

Embodiment 2

[0051] On the basis of Example 1, such as figure 2 , image 3 and Figure 5 As shown, the high-pressure metering pump 5 includes a driving member 23, and the driving member 23 is used to drive the white material metering cylinder 24 and the black material metering cylinder 25 to act simultaneously. The white material is pumped, and the black material metering cylinder 25 pumps the black material from the black material tank 7 . Wherein the volume of the white material metering cylinder 24 is less than the volume of the black material metering cylinder 25 . In this embodiment, the volume ratio of the white material metering cylinder 24 to the black material metering cylinder 25 is 1:1.2. In this embodiment, the driving member 23 is a hydraulic cylinder, and also includes a hydraulic station 4 that matches the hydraulic cylinder. The pipeline that returns the hydraulic cylinder to the hydraulic station 4 is connected to a cooling device 18, and the cooling device 18 uses a w...

Embodiment 3

[0057] On the basis of any of the above-mentioned embodiments, such as Figure 5 As shown, the white material tank 9, the black material tank 7, and the high-pressure metering pump 5 are all located in the airtight enclosure, and the detection probe 17 for detecting the concentration of cyclopentane is arranged in the airtight enclosure, and also includes a For the fan that discharges the gas in the airtight enclosure, the fan is controlled by the detection signal of the detection probe 17; the airtight enclosure and all equipment in the airtight enclosure are grounded, and the grounding resistance is guaranteed to be less than 4Ω. The air discharge end of blower fan passes through blower blower air outlet 15 to the outside of airtight enclosing room, is convenient to gas discharge.

[0058] Among them, the pressure sensor 3 is used to monitor the pressure before the white material and black material enter the mixing head. When the pressure difference between the two is too la...

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Abstract

The invention discloses a cyclopentane foaming device which comprises a black material tank, a black material tank and a mixing head used for polyurethane foaming and also comprises a high-pressure measurement pump, wherein the high-pressure measurement pump is used for pumping delivery of a white material and a black material to the mixing head respectively; energy storage devices are connected to pipelines, used for pumping delivery of the white material and the black materials, of the high-pressure measurement pump, a back pressure of the energy storage device on the pipeline used for pumping delivery of the white material is larger than a back pressure of the energy storage device on the pipeline used for pumping delivery of the black material; and white material tank, the black material tank and the high-pressure measurement pump are located in an airtight enclosure room, and an anti-explosion system is disposed in the airtight enclosure room. The invention aims to provide the cyclopentane foaming device so as to solve the problems in the prior art that, during use of cyclopentane foaming, there are too many driving motors, energy consumption is high, and hidden safety dangersare huge; and the structure is complicate, the cost is high, the volume is large, and equipment miniaturization is difficult. High-precision measurement can be guaranteed; safety performance can be greatly increased; equipment cost can be greatly reduced; and energy consumption can be reduced significantly.

Description

technical field [0001] The invention relates to the field of polyurethane foaming, in particular to cyclopentane foaming equipment. Background technique [0002] Polyurethane has many excellent properties, so it has a wide range of uses. Polyurethane high-pressure foaming machine is to mix polyether polyol (white material) and polymeric MDI (black material) through high-pressure hedge to carry out foaming reaction. The high-pressure foaming machine is mainly used in the production of polyurethane rigid foam, soft foam, high resilience and other products, such as the production of refrigerator freezers, insulation boards, insulation pipes, water heaters, car seat cushions and headrests, etc. A foaming agent needs to be added to the mixed raw materials for foaming. Traditional blowing agents such as freon are not friendly to the environment, and their use has been strictly prohibited according to the "Montreal Protocol". Cyclopentane has been widely used as an environmental...

Claims

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Application Information

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IPC IPC(8): B29C44/34B29C44/60
CPCB29C44/3415B29C44/3442B29C44/35B29C44/60
Inventor 鲁玉凡谭正亮孙永琦鲁云飞邓理坤黄鑫
Owner 成都东日瑞姆机械有限公司
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