Invitation for Inquiry and Price Comparison for the Design of the New Sulfur Storage Warehouse and the New Liquid Nitrogen Pump Project in the South Plant Area

                     ：
Our company plans to add a new sulfur storage facility within the southern plant area and to install an additional liquid ammonia pump in the air separation unit area. We intend to select the project design service provider through a request for quotation and price comparison process. We hereby invite your company to participate in the bidding for the design services for the above-mentioned projects. Please provide a quotation for the fees required for the project design services.
I. Project Overview:
1. Project Location: Within the premises of Xiangyu Salt & Chemical Co., Ltd., No. 98 Longxiang Avenue, Wanzhou District, Chongqing City.
2. Project Overview:
(1) A new sulfur storage facility with a maximum storage capacity of 40 tons has been added to the sulfur recovery unit site.
(2) A high-pressure liquid nitrogen pump is added next to the original high-pressure liquid ammonia pump in the air separation unit as a standby pump. This pump is designed to pressurize liquid nitrogen from the liquid nitrogen tank to 13.5 MPa at a flow rate of 1,000 Nm³/h. After being warmed up by a water-bath vaporizer, the liquid nitrogen is then supplied for gasification purposes, ensuring that one liquid nitrogen pump operates continuously while another remains cold standby and a third is hot standby.
The total project construction cost is approximately 2.5 million yuan, and the construction period is 2 months.
II. Design Requirements and Content:
The construction drawings provided must comply with the following standards and specifications:
1. General Rules for the Storage of Common Chemical Raw Materials, GB50851-2007;
2. Technical Specification for Pollution Control of Hazardous Chemical Storage, GB50856-2006;
3. Standard for Pollution Control on the Storage of Hazardous Wastes (GB18597-2001);
4. “Provisions for the Content and Depth of Construction Drawings for Chemical Process Design” HG/T20519-2009;
5. Rules for the Licensing of Design for Pressure Vessels and Pressure Pipelines (TSG R1001-2008)
6. “Safety Supervision and Inspection Regulations for Pressure Pipelines—Industrial Pipelines” (TSG D0001—2009)
7. Code for Pressure Pipelines – Industrial Piping (GB/T 20801-2006)
8. Code for Design of Layout of Metallic Piping in Petrochemical Industry (SH 3012-2011)
9. Code for Corrosion Protection Design of Coatings for Petrochemical Equipment and Piping (SH/T 3022-2011)
10. Specification for Color and Marking of Steel Structures on Equipment and Piping Surfaces in Petrochemical Enterprises (SH3043-2014)
11. Code for Fire Protection Design of Petrochemical Plants (GB50160-2018);
12. Code for Design of Building Foundations (GB 50007-2011)
13. Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering (GB50242-2016)
III. Design Qualifications and Construction Period Requirements:
Bidding entities must possess Grade B or higher design qualifications in the chemical, petrochemical, and pharmaceutical industries (including chemical engineering, as well as storage and transportation of petroleum and chemical products).
Design deadline: 45 days.
4. Quotation Method and Requirements for Quotation Materials:
1. The project’s design service fee inquiry, comparison, and bidding process will adopt a one-time quotation mechanism. The total quoted amount already includes the expert review fees and taxes (special VAT invoice, tax rate: 6%).
2. The quotation materials must include:
Your company’s business license, design qualification documents (photocopies stamped with the company’s official seal), and the “Quotation Letter” attached to this invitation letter (stamped with the company’s official seal).
V. Principles for Determining the Winning Design Service Provider:
The control price for this inquiry-based procurement bidding has been set at 150,000 yuan. Provided that the qualifications and construction period meet the requirements, the design service provider will be selected solely based on the lowest bid price.
6. Method for Participating in Price Comparison:
Please carefully complete the “Quotation Letter” attached to this invitation letter (which must be stamped with the official seal of your organization). Along with the company’s business license and design qualification documents (photocopies bearing the official seal of your organization), please send the scanned electronic version to the email address xiangyuyanhua@126.com before 5:30 p.m. on April 30, 2024.
VII. Other Matters:
1. All required documents must be provided in full, and the stamps on photocopies must be clearly visible.
2. For access to the technical documents for this project and if you have any questions regarding this invitation letter, please contact Tian Hongwei from the Science and Technology Planning Department at telephone number: 13437204821.

Chongqing Xiangyu Salt & Chemical Co., Ltd.
April 25, 2024